• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    disposable garment article an objective of the present invention is to provide a disposable garment article having improved volume as well as flexibility of the outer sheet by using corrugated fiber as the material for the outer sheet and bonding the inner and outer sheets by adhesive to provide the article with good texture and good appearance. a first waist region 13 as a whole or in part seated in the vicinity of a waist opening being elasticized and formed by an inner sheet 32 defining the laterd facing the skin and an outer sheet 30 defining the non-voiced side to the skin where the side not voiced to the skin of the outer sheet 30 is formed substantially over its entire area with a plurality of points connected by thermo-compression 20 regularly and intermittently harmonized at predetermined intervals. the outer sheet 30 has non-thermo-compressed regions 64 surrounded by a plurality of points connected by thermo-compression 20. a fibrous layer laying at least on the surface of said outer sheet 30 is formed of thermal corrugated fibers 63 which are bonded together by treatment of thermo-compression bonding at the points connected by thermo-compression 20. the outer sheet 30 and the inner sheet 32 are bonded together by adhesive 35 applied on at least one of the respective surfaces, opposite of the same so that the wavy fibers 63 in non-thermo-compressed regions 64 they can project outwardly in a thickness direction of the outer sheet 30 when the inner sheet 32 contracts in the direction of the transverse axis q.
    公开号:BR112012004363B1
    申请号:R112012004363-3
    申请日:2010-08-31
    公开日:2021-03-30
    发明作者:Toshifumi Otsubo；Mariko Yamashita；Etsuko Kudo；Tatsuya Hashimoto
    申请人:Unicharm Corporation；
    IPC主号:
    专利说明:

    [0001] The present invention relates to disposable garments and more particularly disposable garments having improved texture and flexibility such as disposable diapers, disposable training pants, diapers and / or disposable urinary incontinence pants or pads for disposable or other menstruation.
    [0002] Conventionally, disposable diapers using bulky fiber layers to achieve desired flexibility are known. For example, PATENT DOCUMENT 1 (JP 3340032 B1) shows a bulky fiber nonwoven material used as an outer sheet of a disposable diaper where this bulky fiber nonwoven material comprises an inelastic outer sheet seated on a non-facing side. skin and an inner sheet contracted and stretched elasticly seated on one side facing the skin linked by thermocompression to each other.
    [0003] In this diaper, the non-thermo-compressed regions, each defined by a plurality of points linked by thermocompression harmonized intermittently forming folds that protrude towards the outer sheet in the thickness direction to provide greater flexibility than that provided by the material of the sheet having smoothed surface.
    [0004] However, in this diaper known for its state of the art, the diaper is formed on its outer surface with very large and small folds that may cause a relative rough sensation experienced by the user. In addition to this, such folds may have an appearance problem. [Patent Literature] [PATENT DOCUMENT 1] JP 3340032 B1
    [0005] An article of disposable clothing according to one or more configurations of the present invention has a longitudinal axis extended in a longitudinal direction, an orthogonal axis transverse to said longitudinal axis and extended in a transverse direction, and comprising a side facing the skin, one side not facing the skin, a first waist region corresponding to one of the front and rear waist regions, a second waist region corresponding to another of the front and rear waist regions and a region between legs (15) extended between the first and second waist regions, where, at least one of the first and second waist regions as a whole, or only in its seated part adjacent to a waist opening, being elasticized and formed by an inner leaf defining the lateral side for the skin and an outer leaf defining the side not facing the skin and the side facing away from the skin of the outer leaf user s formed substantially over its entire area with a plurality of points connected by thermocompression regularly and intermittently harmonized at intervals.
    [0006] The outer sheet does not have thermocompressed regions surrounded by the plurality of points connected by thermocompression, the outer sheet being provided with a fibrous layer at least on its outer surface and being formed of thermal adhesive corrugated fibers; the corrugated fibers being connected together by thermocompression treatment at the points connected by thermocompression; the outer sheet and the inner sheet being bonded together by the adhesive applied to at least one of the respective opposite surfaces thereof; and the wavy fibers in the uncompressed regions being harmonized to project outwardly in a direction of thickness of the outer sheet when the inner sheet contracts in the transverse direction.
    [0007] For a better understanding of the invention, detailed reference will be made to it, with respect to the attached drawings, presented in an exemplary and non-limiting character, in which: - Figure 1 is a perspective view of a diaper according to a first configuration of the present invention; - Figure 2 is a partially cut plan view of the diaper as frontally developed; - Figure 3 is an exploded perspective view of the diaper; - Figure 4 is a schematic sectional view taken along line IV-IV in Figure 2; - Figure 5 is a partially enlarged perspective view showing an external surface of the diaper; - Figures 6 (a) and 6 (b) are diagrams illustrating patterns of how wavy fibers are waved; - Figure 7 is a diagram illustrating a first laminated sheet in a delaminated state; - Figure 8 is a partially enlarged scale diagram illustrating the thermocompression connection lines in a region surrounded by the dashed line VIII of Figure 7; - Figure 9 is a partially enlarged scale diagram illustrating a coating pattern of the first adhesive in a region surrounded by dashed line IX in Figure 7; - Figure 10 is a partially enlarged sectional view taken along line X-X of Figure 5; Figure 11 is a partially enlarged sectional view similar to Figure 10 taken along the corresponding line in the diaper according to a second configuration of the present invention; - Figure 12 is a partially enlarged scale diagram similar to Figure 9 illustrating the thermocompression connection lines in the diaper according to a third configuration of the present invention; Figure 13 is a partially enlarged scale diagram similar to Figure 8 illustrating the thermocompression connection lines of the diaper according to a fourth configuration of the present invention; - Figure 14 is a graph showing the comparison between a basic texture from Example 1, Comparative Examples 1 and 2. <First Configuration >>
    [0008] Referring now to Figures 1 to 4, diaper 10 is symmetrical about the longitudinal axis P. Diaper 10 has a side facing the skin and a side not facing the skin and basically comprises a chassis 11 defining a contour of the diaper 10 and a liquid-absorbent structure 12 seated on the side of the skin surface of the chassis.
    [0009] More specifically, diaper 10 has a front waist region 13, a rear waist region 14, a region between legs 15 extended between the front and rear waist regions 13, 14, opposite front and rear ends 16,17 in a longitudinal direction defined by a longitudinal axis P and extending in a transverse direction defined by a transverse axis Q, and lateral edges 18, 19 opposite each other in the transverse direction and extending in the longitudinal direction.
    [00010] Diaper 10 is formed on its external surface with a plurality of points connected by substantially circular thermocompression (raised points) harmonized intermittently in certain directions to be seated in rows and columns with each other and to define the first and second rows of thermocompression bonding 21, 22, These first and second thermocompression bonding lines 21, 22 cooperate with each other to create a quilt-like blanket or a cross pattern.
    [00011] In the region between legs 15, the lateral edges 18, 19 are concave and internally curved so that the lateral edges 18, 19 can be attached to the user's skin around the user's thighs. The front waist region 13 and the rear waist region 14 are joined together along the respective side edges by side seams 23 intermittently harmonized in the direction defined by the longitudinal axis P along the respective side edges. Then, a waist opening 24 and a pair of leg openings 25a, 25b are formed.
    [00012] The chassis 11 comprises a first substantially hexagonal outer sheet 30 defining the front waist region 13 and a part of the waist region 15 and a second substantially trapezoidal outer sheet 31 defining the rear waist region 14 and a part of the region between legs 15, each outer leaf sitting on the side not facing the skin, a first inner leaf 32 extending across the front waist region 13 in the transverse direction and attached to the skin-facing side of the first outer leaf 30, a second leaf inner 33 extended across the rear waist region 30, a second inner sheet 33 extended across the rear waist region 14 in the transverse direction and attached to the side facing the skin of the second outer sheet 31 and a substantially rectangular intermediate sheet 34 extended between the first and second outer leaves 30, 31 start to define a median section of the region between legs 15.
    [00013] The first outer sheet 30 and the first inner sheet 32 are joined together by the first adhesive 35 to form a first laminated sheet. The second inner sheet 33 has a smaller width dimension than that of the first inner sheet 32. The second outer sheet 31 and the second inner sheet 33 are joined together by the second adhesive 36 to form a second laminated sheet 38. The intermediate sheet 34 comprises a sheet of substantially rectangular fibrous non-woven material 39 seated on the side not facing the skin and a liquid impermeable but moisture-permeable plastic sheet 40 which is almost the same as the sheet of fibrous non-woven material 39 in shape and size . These sheets of fibrous non-woven material 39 and plastic sheet 40 are bonded together by a heat-melted adhesive (not shown).
    [00014] Chassis 11 also includes graphic display films 43, 44 made of plastic material seated on the respective sides not facing the skin of the front and rear waist regions 13, 14 to extend in the respective median regions of these waist regions 13 , 14 as seen in the transverse direction and printed with externally visible or similar graphics (not shown) and a fixation sheet 45 made of a fibrous non-woven material extended on the side facing the skin of the chassis 11 through the region between legs 15 still in the front and rear waist regions 13, 14. The fixing sheet 45 has a dimension of width greater than that of the intermediate sheet 34 and entirely covering the side facing the skin of the intermediate sheet.
    [00015] Along the front end 16 of the front waist region 13, the first outer sheet 30 is folded internally to form an extreme front flap 46 which in turn contracts a first elasticized element 47 consisting of two elastomer tapes fixed to the front end flap 46 under tension in a contracted manner. Similarly, along the rear end 17 of the rear waist region 14, the second outer sheet 31 is folded internally to form an extreme rear flap 48 containing, in turn, a second elasticized element 49 consisting of two fixed elastomer tapes to the rear end flap 48 under tension in a contracted manner.
    [00016] The lateral edges of the region between legs 15 are provided along the segments thereof adjacent to the front waist region 13 (that is, peripheral edges half front of the respective leg openings) with elastic elements 50R, 50L formed of elastomeric tape fixed under tension in a contracted manner to the inner surface of the first outer sheet 30, Similarly, the lateral edges of the region between legs 15 are provided along the segments of the same adjacent to the rear waist region 14 (ie, peripheral edges half rear of the respective leg openings) with elastic elements 51R, 51L each comprising elastomeric straps tightly contracted to the inner surface of the second outer sheet 31. Fixing sheet 35 is attached to the respective outer surfaces of these elastic elements 50R, 50L and 51R, 51L so that the elastic elements 50R, 50L associated with the peripheral edges half front of the respect These effective waist openings can be partially covered and the elastic elements 51R, 51L associated with the peripheral edges half back of the respective leg openings can be completely covered by the fastening sheet 45, respectively.
    [00017] The first and second outer sheets 30, 31 are formed from a fibrous non-woven material. The first and second outer sheets 30, 31 may consist of two or more layers and, in this case, the outermost fibrous layers of the respective outer sheets 30, 31 being preferably formed of continuous wavy filament fibers. While the first and second outer sheets 30, 31 including the naturally corrugated fibers have stretching properties, it is possible to form the first and second outer sheets 30, 31 of a fibrous non-woven material having lower stretching properties than those of the first and second sheets inner 32, 33. In a preferred configuration, the first and second outer sheets 30, 31 have a percentage of elastic stretch in a range of 100 to 150% and the first and second inner sheets 32, 33 having a percentage of stretch in one range from 150 to 300%. It will also be possible to regulate a percentage of the corrugation and a radius of curvature of the corrugated fibers and thus form the first and second outer sheets 30, 31 of a fibrous non-woven material substantially having no contraction and elastic stretching properties.
    [00018] The first and second inner sheets 32, 33 are formed of a non-woven material drawn through air (stapled fibers) or a continuous filament fibrous non-woven material. The intermediate sheet 34 and the fixing sheet 45 may be formed of a continuous filament nonwoven material of corrugated fibers as the first and second outer sheets 30, 31 are, or of fibrous non-woven material not stretched elastically through air or other . The outer surface of the intermediate sheet 34 may be subjected to thermocompression bonding treatment as the first and second outer sheets are, or may not be subjected to said treatment.
    [00019] The liquid-absorbent structure 12 is provided in the form of a long rectangle vertically contoured by the front and rear ends and side edges extended orthogonally to the front and rear ends and extending across the region between legs 15 and also in the front waist regions and rear 13, 14. The liquid-absorbent structure 12 comprises a liquid-permeable top sheet 53 seated on the side facing the skin, a liquid-absorbent core assembly 55 formed of a liquid-absorbent core comprising a mixture of pulp fibers of cellulose and superabsorbent polymer particles and covered with a liquid dispersing sheet (not shown), a packaged sheet 56 seated on the side not facing the skin and adapted to cover the liquid absorbent core assembly 55 completely, and a sheet leak barrier 57 made of plastic material sandwiched between the liquid absorbent core assembly 55 and the fo cover sheet 56.
    [00020] The cover sheet 56 has opposite side parts extended in the transverse direction beyond the opposite side edges of the liquid absorbent core assembly 55. These side parts are partially folded internally to form a pair of side flaps like sleeves 58R, 58L, extended in the longitudinal direction and respectively containing elastic elements 59, 60 each comprising three elastomeric strips extended in the longitudinal direction fixed in a contracted manner to the side flaps 58R, 58L by heat-melted adhesive. Of the respective elastic elements 59, 60, the outer lateral elastic ribbons 59a, 60a are allocated in the middle of the region between legs 15 and cooperating with the first and second elastic elements 50R, 50L, 51R, 51L to form elastic straps extended throughout the region inguinal of the user (a). Of the elastic elements 59, 60, the respective central elastic ribbons 59b, 60b extend within the respective side flaps 58R, 58L in the front and rear waist regions 13, 14 and the sides of the cover sheet 56 being spaced from the front sheet 53 under contraction of these elastic members to form gasket sheaths or barriers adapted to prevent body residual from leaking from the side.
    [00021] The non-skin side of the liquid-absorbent structure 12 is entirely or partially attached to the skin side of the chassis 11 by heat-melted adhesive (not shown). The rear end of the liquid-absorbent structure 12 is sandwiched between the second inner sheet and the second outer sheet and thus it is possible to prevent body fluid from leaking from the rear end of the liquid-absorbent structure 12.
    [00022] It should be appreciated that the first and second inner leaves 32, 33 are not limited to extending only in the regions of the front to the rear waist but can be harmonized to extend even in the region between legs 15. Instead of placing the leaf fastening 45 on the side facing the skin, it will still be possible to form the chassis 11 as a whole from the outer sheet and the inner sheet each having a shape corresponding to the outer sheet of the diaper 10, and if desired, to elasticize the diaper 10 as a whole.
    [00023] It should be appreciated here that, while the following description refers only to the first laminated sheet 37 in the front waist region 13, the description will also be true with respect to the second laminated sheet 38 in the rear waist region 14.
    [00024] As previously described, the first outer sheet 30 is subjected to thermocompression treatment from its outer surface towards its inner surface and thus formed in its total area with a plurality of points connected by thermocompression (raised points) 20, At each of the embossed points 20, the outer surface of the outer sheet 30 is bonded by thermocompression by, for example, an embossing roller and corrugated fibers 63 being compressed in the thickness direction of the outer sheet 30,
    [00025] With reference to Figure 5, many points connected by thermocompression 20 harmonized intermittently in a certain direction in order to form connection lines by thermocompression. In this way, two or more lines 21 of the thermocompression connection lines extended at an angle of approximately 45o on one side with respect to the transverse axis Q and two or more columns 22 of the thermocompression connection lines and extended at an angle of approximately 45o in the opposite direction with respect to the transverse axis Q and intersecting with the lines 21 of the thermocompression connection lines are formed.
    [00026] Each pair of lines 21 of the lines connected by thermocompression extend in parallel with each other and each pair of columns 22 of the connected lines intersecting each other to define a plurality of substantially rhombic regions not thermocompressed 64 each surrounded by these lines and columns 21, 22. In each of the non-thermally compressed regions 64, a group of wavy fibers are concentrated under contraction of the first seated inner sheet 32 and, as a consequence, the first outer sheet 30 is formed in its thickness direction with a plurality of protuberances to make the non-thermo-compressed region 64 bulky. As shown in Figure 1, the lines and columns 21, 22 of the thermocompression-linked lines can be regularly formed and harmonized to form the outer surface of the diaper 10 with a quilt-like pattern.
    [00027] The first outer sheet 30 is preferably formed of a continuous filament adhesive material with thermal adhesive having a weight in the range of approximately 15 to 40g / m2, preferably in a range of approximately 25 to 35g / m2 and a density of fiber in a range of approximately 0.1 to 0.6 g / cm3, preferably in the range of approximately 0.07 to 0.09 g / cm3. It will also be possible to form the first outer sheet 30 of a plurality of layers while at least the outermost fiber layer comprises the corrugated fibers 63. The fiber layer on the side of the first inner sheet 32 may comprise non-corrugated fibers.
    [00028] The first inner sheet 32 is preferably formed of a non-woven elastomeric fiber material with thermal adhesive having a weight in the range of approximately 20 to 50g / m2, preferably in an approximate range of 30 to 40g / m2 and a density of fiber in a range of approximately 0.01 to 0.04 g / m3. preferably in a range of approximately 0.025 to 0.035g / m3. More specifically, the first inner sheet 32 may be formed of mixed fibers of thermoplastic polyurethane polymer with a thermoplastic polymer other than thermoplastic polyurethane polymer such as a styrene-based elastomer, polyolefin-based elastomer, vinyl chloride-based elastomer, starch-based elastomer , or polyolefin polymer such as polyethylene, polypropylene or polystyrene.
    [00029] It will still be possible to form the first inner sheet 32 of mixed fibers
    [00030] consisting of elastomeric fibers and non-elastomeric fibers. The use of said mixed fibers will make it possible to relieve undesirable friction between the elastomeric fibers and the user's skin. In other words, the non-elastomeric fibers mixed in the first inner sheet 32 serves to improve the sliding properties of the first inner sheet 32 on the user's skin and thus improve the flexibility as well as the texture of the first inner sheet 32. In addition , the mixture of non-elastomeric fibers makes it possible to adjust the stretching properties of the first inner sheet 32.
    [00031] The first inner sheet 32 is connected under tension in a stretch radius of approximately 1.5 to 3.0 in the transverse direction to the first outer sheet 30 so that the contraction of the first inner sheet 32 can accentuate the volume of the corrugated fiber layer constituting the first outer sheet 30,
    [00032] Referring to Figures 6 (a) and 6 (b), Figure 6 (a) illustrates two-dimensional wavy fibers in a wavy pattern and Figure 6 (b) illustrates three-dimensional wavy fibers in a spiral pattern or rolled. At points linked by thermocompression, the fibers of individual components are melted together and, in the case of corrugated fibers 63 obtained by the well-known continuous filament method, polymer fused filament fibers as the original material are dispersed to form a weft. These fibers may be partially linked by light fusion or interlaced in the non-thermocompressed regions also depending on the types of treatment carried out in the course of the formation of the weft. While said fusion bonding or interlaced fibers in the non-thermocompressed regions can be partially released from each other by loading the appropriate tension in the fiber web as a material for the outer sheet 30 in the production process for the article. However, all fibers forming the non-thermally compressed regions are preferably released from one another without being melted or interlaced. In view of this, all fibers must be fused or interlaced together, a predetermined tension must be loaded in the fiber web and then the undesirable fusion or interlaced connection will be completely eliminated in accordance with the present invention.
    [00033] Two-dimensional waving may be formed by, for example, a buckling method (twist) or a known waving method meshed and regularly wavy fibers being obtained by said method (see Figure 6 (a)). The three-dimensional undulation can be formed, for example, a false twist undulation method or a scraped undulation method. The false torsion method creates a relatively irregular wave pattern and the scraped wave method creates a relative regular wave pattern. To form the three-dimensional waviness, a heat shrinking waving method will also be feasible. When the heat shrinkage method is employed, side-by-side or core sheathed conjugated fibers can be continuous fused from two or more types of polymer having different melting points, for example, polypropylene and polyethylene can be used as original materials for develop the desired undulation by the differential heat shrinkage derived from the melting point differential. The use of the conjugated fiber type sheathed core sheath, in which the core is formed of polypropylene and the sheath formed of ethylene / propylene copolymer, obtained by the heat shrinking waving method being preferable in view of several factors such as the number of ripples , the percentage of ripples, the rate of stretching of the ripples, and the rate of recovery of the ripples. The corrugated fiber 63 shown in Figure 6 (b) is eccentric in the type of a core sheath.
    [00034] While a waviness percentage of the wavy fiber 63 can be properly regulated, in the case of the filament fiber having fineness in a range of approximately 0.5 to 3.0 deniers, depending on the desired flexibility of the first outer sheet 30 and the elongation of the fiber from which the number of corrugations is in a range of approximately 10 to 25 / 25mm and can be used as a fiber having a relatively high percentage of corrugation and the fiber in which the number of corrugations is in the range of approximately 5 to 10 / 25mm can be used as a fiber having a relatively low percentage of ripples.
    [00035] Referring to Figures 7-9, in Figure 7, the first inner sheet 32 is not connected to the first outer sheet 30 and, as a result, the non-thermocompressed regions 64 are not yet formed with protrusions 65. In Figure 9, the points connected by thermocompression 20 forming the lines and columns 21, 22 the lines connected by thermocompression are indicated as dashed lines.
    [00036] In Figures 7 and 8, each of the points connected by thermocompression 20 forming the lines and columns 21, 22 of the lines connected by thermocompression has a cross sectional shape substantially in a circle having a diameter in the range of approximately 0.4 to 0.8mm. The non-thermo-compressed region 64 defined by the lines and columns 21, 22 of the lines connected by thermocompression intersecting each other has a substantial rhombic shape, length L1 on one side which may be in the range of approximately 7.0 to 9.0mm and length L2 diagonal and can be in the range of approximately 6.0 to 8.0mm. It should be appreciated that the respective sizes of the thermocompression-connected point 20 and the non-thermo-compressed region 64 can be properly regulated and it is possible to provide the thermocompression-connected point 20 in various forms known to the state of the art, other than rhombus, for example, in the form of a rectangle, approximately 0.4 to 0.7 mm on one side, or an ellipsoid or a triangle.
    [00037] In Figures 7 and 9, the first adhesive 35 is a hot-melt adhesive applied in a weight in the range of approximately 1.0 to 5.0g / m2 to define a plurality of connecting lines 70 extended in the longitudinal direction (that is, parallel to the longitudinal axis) and spaced apart in the transverse direction. Each connection line substantially comprises a matrix having the shape of a series of "omega". Specifically, each connecting line comprises a continuous repeated pattern formed by alternating longitudinally and transversely the parts of the extended line, where the parts of the lines extended transversely, where the parts of lines extended transversely and longitudinally are spaced apart in the transverse direction, and joined together by a part of the transverse extended line, and parts of adjacent transversely extended lines that are spaced apart in the longitudinal direction, and joined together by a part of the longitudinally extended line. All connecting lines are in control of each other, so that all parts of the line of each part of the line lie parallel to the corresponding parts of the lines of all other parts of the lines.
    [00038] The heat-melt adhesive pattern is not limited to the omega series, as described above, but the heat-melt adhesive can be applied to any other known pattern such as spiral, dotted, wavy or grid patterns.
    [00039] While the heat-melt adhesive is not limited to any particular type and well-known types of heat-melt adhesive, it can be selectively used, and it is preferable to use rubber-based adhesive such as SBS (styrene-butadiene-styrene) or SIS (styrene-isoprene-styrene) from the point of view that the elasticity of the first inner sheet 32 should be maintained as much as possible. Each of the connecting lines 70 has a line width preferably in the range of approximately 0.01 to 0.1 mm, more preferably in the range of approximately 0.03 to 0.07 mm and a percentage of area against the entire inner surface of the first inner sheet 32 being preferably in the range of approximately 2 to 10%, more preferably 4 to 6%.
    [00040] A distance R1 between each pair of adjacent connecting lines 70 (measured by the transverse distance between the corresponding parts of the longitudinally extended lines of the adjacent connecting lines, as shown in Figure 9) will preferably be in the range of approximately 1.0 to 2.5mm , more preferably in the range of approximately 1.5 to 2.0mm. Under these conditions, the connecting lines 70 may be formed from the first adhesive 35 to ensure that the inner surface of the first inner sheet 32 will be substantially over its entire area coated with the heat-melted adhesive in a substantial uniform pattern of two or more matrices of continuous “omegas”. In this way, the non-thermally compressed regions 64 on the outer surface of the first outer sheet 30 may be formed with protrusions 64 increasing the flexibility of the first laminated sheet 37 and creating a quilt-like pattern providing a decorative outer appearance of the diaper.
    [00041] As will be apparent in Figure 10, after the first laminated sheet 37 has been formed by subjecting the first outer sheet 30 to the thermocompression bonding treatment so that the first outer sheet 30 and the first inner sheet 32 can be connected between itself by the first adhesive 35, the corrugated fibers 63 in the non-thermally compressed regions 64 each surrounded by the lines and columns 21, 22 of the thermocompression connecting lines become bulky and protuberances being formed to extend convexly outwardly in the thickness direction of the outer sheet 30,
    [00042] Specifically, assuming that the first inner sheet 32 has a height dimension h1 in a range of approximately 0.5 to 1.0mm, the protrusions 64 of the first outer sheet 30 have a height dimension (measure of the inner sheet 32 at tops of the respective protuberances 65) in a range of approximately 2.0 to 3.0mm.
    [00043] Now it will be described how and why the non-thermally compressed regions 64 of the first outer sheet 30 become bulky. At least the outermost fiber layer of the first outer sheet 30 is defined by corrugated fibers 63 which have been fused together at the respective thermocompression bonding points 20 formed by the thermocompression bonding treatment. In the regions of the first outer sheet 30 except those points connected by thermocompression 20, that is, in the non-thermally compressed regions 64 surrounded by the connecting lines formed by points connected by thermocompression 20, at least part of the corrugated fibers 63 is left free of the other and freely moved. While at least a part, preferably all or substantially all of the corrugated fibers 63 in the non-thermally compressed regions 63 can be left free of each other, it being ensured that the texture of the diaper 10 on its outer surface can be improved.
    [00044] The inner surface of the first outer sheet 30 is bonded to the first inner sheet 32 having stretching properties or elastic stretching properties higher than those of the first outer sheet 30 by the first adhesive 35 so that the corrugated fibers 63 in the non-thermally compressed regions they will be able to follow the movement of the first inner sheet 32. In consequence, in the contraction of the first inner sheet 32, the distance between each pair of adjacent connecting lines 70 is reduced in comparison to the corresponding distance when the first inner sheet 32 is under tension and the corrugated fibers 63 project outwardly in the thickness direction of the first outer sheet 30 to form voids 72 in the unbound regions defined between the binding regions. In this way, the first laminated sheet 37 as a whole provides "a flexible and airy texture".
    [00045] More specifically, the first outer sheet 30 preferably exhibits flexible stiffness (JIS L1096) in a range of approximately 45.0 to 65.0mm when the inner sheet 32 contracts and, in this state, a KES compression value of the first laminated sheet 37 as a whole being in a range of approximately 0.2 to 0.3 gf cm / cm2. The first laminated sheet 37 of the present invention has greater flexibility than a laminated sheet consisting of two layers of fibrous non-woven material, which has been conventionally used as the outer sheet of the disposable diaper. Consequently, the first laminated sheet 37 is enabled to achieve "a flexible aerated texture" experienced by the user and helper.
    [00046] << Total light transmission >>
    [00047] TABLE 1 sets out below comparatively indicating the total luminance transmission measured on the first laminated sheet 37 of the invention comprising the inner sheet 32 and the first outer sheet 30 connected together by adhesive 35 and a laminated sheet comprising an elastic sheet and an inelastic sheet that has been conventionally used as an outer sheet of the disposable diaper. [Table 1]
    [00048] Total light transmission (%)

    <Samples for measurement>
    [00049] An elastic fibrous nonwoven material having a weight of 30g / m2 was used with the first inner sheet 32, a continuous filament nonwoven material comprising corrugated fibers and having a weight of 30g / m2 was used as the first outer sheet 30 and the inner surface of the first inner sheet 32 being coated with heat-melt adhesive having a weight of 2g / m2 in the continuous "omega" pattern. With the first inner sheet 32 stretched in the transverse direction at a stretch radius of 2.4, these two sheets were joined together to form the first laminated sheet 37. Like a conventional laminated sheet, an elastic fibrous non-woven material having a weight of 30g / m2 was bonded to a continuous filament nonwoven material of non-corrugated fibers by heat melt adhesive having the same weight as the above heat melt adhesive to form the laminated sheet. <Measurement method>
    [00050] The total luminance transmission was measured according to JIS-K7105, for this measurement, a color difference meter (color difference meter of the Z-300A scintillating photometer type manufactured by NIPPON DENSHOKU INDUSTRIES Co., Ltd. ) was used. Specifically, samples of each having a size of 50mm in width and 40mm in length were obtained and attached to a turbidimeter to determine Tt values as the total light transmissions (%) of the respective samples. The measurement was conducted ten (10) times for conventional non-woven continuous filament non-corrugated fiber material, the outer sheet according to the present invention, the conventional laminated sheet and the first laminated sheet 37 according to the present invention, respectively , and respective average values being calculated. <Measurement result>
    [00051] As will be apparent from the measurement result indicated by TABLE 1 established above, there was no significant difference between the conventional non-woven continuous filament non-corrugated fiber material and the outer sheet 30 according to the present invention with respect to the total transmission of luminosity. However, after the conventional continuous filament non-woven material and the outer sheet 30 according to the present invention were attached to the elastic sheet and the inner sheet 32, respectively, the conventional total light transmission was approximately 49% and the first sheet laminate 37 in accordance with the present invention exhibited total light transmission of 40% or less. As will be appreciated from the referred specific measured values, the total light transmission of the first laminated sheet 37 is inferior to that of the conventional laminated sheet. This is because the corrugated fibers become even more voluminous in the thickness direction of the outer sheet 30 and the transmission of The luminosity of the first laminated sheet 37 as a whole is noticeably lower when the first laminated sheet is attached to the inner sheet 32 by the first adhesive 35.
    [00052] As described above, the first laminated sheet 37 consisting of the first inner sheet 32 and the first outer sheet 30 has the transmission of light noticeably less than that of the two sheets 32, 30 when connected together. Consequently, the regions of the first laminated sheet 37 in the front and back waist regions 13, 14 take on a faded white as a whole (assuming that all leaf materials are white) and there is no possibility of the user's skin being visually recognized across these regions. Between the region formed by the first laminated sheet 37 and the region occupied by the liquid absorbent core assembly 55, there is substantially no difference in the total light transmission and the diaper 10 as a whole has the external appearance as a cotton panties. <Second configuration>
    [00053] Referring to Figure 11, the basic aspect of diaper 10 according to this configuration is similar to diaper 10 according to the first configuration and the following description will be limited to the differentiating aspect of the first configuration.
    [00054] According to the present configuration, the first inner sheet 32 comprises an outer layer 80 seated adjacent to the first outer sheet 30 and an inner layer 81 seated adjacent to a lower surface of the outer layer 80, The outer layer 80 is formed of combined fibers comprising elastomeric fibers such as polyurethane and non-elastomeric fibers such as polypropylene and, in contrast to the outer layer 80, the inner layer 81 is formed of elastomeric fibers only. The percentage content of the non-elastomeric fibers in the combined fibers of the outer layer 80 may be in the range of approximately 50% to 65% by weight, preferably in the range of 55 to 60% by weight to improve the texture.
    [00055] The outer layer 80 is formed of combined fibers of non-elastomeric fibers and a surface of the outer layer 80 to be laid flat together with and to be bonded to the outer sheet 30 being flatter than in the case where the outer layer 80 is formed of elastomeric fibers only. This means that the surface area on which the outer layer 80 is to be attached to the corrugated fibers 63 constituting the first outer sheet 30 is advantageously enlarged and the first inner sheet 32 can be stably attached to the first outer sheet 30, In addition, when the fiber layer constituting the first outer sheet 30 to be bonded to the outer layer 80 is formed of non-corrugated fibers, it being ensured that the surface on which the outer layer 80 to be bonded to the first outer sheet 80 is even more flat and the first inner sheet 32 may be more stably linked to the first outer sheet 30,
    [00056] The first outer sheet 30, the outer layer 80 and the inner layer 81 of the first inner sheet 32 preferably respectively have elongated percentage as follows: the first outer sheet 30 has elongated percentage in a range of approximately 60 to 80% in the longitudinal direction and in a range of approximately 200 to 250% in the transverse direction; the outer layer 80 has an elongated percentage in the range of approximately 100 to 120% in the longitudinal direction and in a range of approximately 200 to 250% in the transversal direction; and the inner layer 81 has an elongated percentage in the range of approximately 180 to 200% in the longitudinal direction and in a range of approximately 250 to 300% in the transverse direction.
    [00057] The elongated percentages of these sheets (fibrous layers) 30, 32, 80, 81 indicate a correlation as that elongated percentage of the outer layer 80 being higher than the elongated percentage of the first outer sheet 30 and the elongated percentage of the inner layer 81 being higher than that of the outer layer 80, In other words, the outer layer 80 having a relatively low percentage of elongation can be attached to the first outer sheet 30 to ensure that the first outer sheet 30 more easily follows the movement of the first inner sheet 32 than in the case where the inner layer 81 having a relatively high percentage of elongation is directly connected to the outer sheet 30, In this way, the outer sheet 20 can be prevented from being delaminated from the inner sheet 32. <Third configuration>
    [00058] Referring to Figure 12, the basic aspect of diaper 10 according to this configuration is similar to diaper 10 according to the first configuration and the following description will be limited to the differentiating aspect of the first configuration.
    [00059] According to the present configuration, in addition to the points connected by thermocompression 20 forming the lines and columns 21, 22 of the lines connected by thermocompression, two or more points connected by thermocompression 20 are formed in the central zone of each non-term region -compressed 64 (Figure 12). These two or more additional points connected by thermocompression 20 create relative small protuberances 65 in the central zone of the non-thermo-compressed region 64 and then the flexibility of the first laminated sheet 37 as a whole is improved compared to the first configuration. <Fourth configuration>
    [00060] Referring to Figure 13, the basic aspect of diaper 10 according to this configuration is similar to diaper 10 according to the first configuration and the following description will be limited to the differentiating aspect of the first configuration.
    [00061] According to the present configuration, the lines and columns 21, 22 of the thermocompression connection lines are formed by alternating small and large connection points by rectangular thermocompression 20 and a staggered pattern. With this harmonization, a total area of the non-thermally compressed regions 64 will be smaller than in the case of the first configuration. Consequently, the radius of the area of the non-thermally compressed regions 64 against the first outer sheet 30 as a whole will be lessened and the radius of the area of the thermocompression-linked points 20 against the first outer sheet 30 as a whole will be increased. The present configuration is particularly effective in restricting the softening of the first outer sheet 30 as a whole and the corrugated fibers 63 of the first outer sheet 30 may be restricted from becoming excessively bulky (becoming excessively fluffy) due to the contraction of the first inner sheet 32.
    [00062] <Mechanical properties of the first and second laminated sheets 37, 38>
    [00063] Table 2 shows mechanical properties such as tensile property, bending property, surface property, shear property and compression property of the first and second laminated sheets 37, 38 according to one or more configurations of the the present invention measured by the KES method and compared with those of the corresponding members of other known diapers. [Table 2]

    <Samples for measurement>
    [00069] The measurement was performed 3 times for each of Example 1, Comparative Example 1 and Comparative Example 2 and their average values were calculated. Large size disposable diaper 10 according to one or more configurations of the present invention is used as a sample for Example 1, large size disposable diaper (A) (which is marketed by Uni-Charm Corp, as trade name “ MOONYMAN ”) is used as a sample for Comparative Example 1 and the large disposable diaper (B) that is marketed by another company) is used as a sample for Comparative Example 2. All diapers used as Example 1, Example Comparative 1 and Comparative Example 2 are then called pants type diapers and each of these diapers has an absorbent structure independently provided in the outermost sheet thereof. Each property, other than the tensile property and the shear property, is measured for each of the front and rear waist regions in a predetermined region of the same provided between one of the lateral edges and absorbent structure. Each of the tensile and shear properties is measured for each front and rear waist region in which the absorbent article has been removed and the lateral edges of the outermost sheet have been peeled off. Additionally, the tensile property and the shear property were measured for each diaper with elastic bands at the waist and elastic bands on the legs present, and the other properties being measured for each diaper with elastic bands on the waist and elastic bands on the legs removed. <Examples>
    [00070] The first laminated sheet 37 of diaper 10 used as Example 1 comprises an elastic fibrous nonwoven material having a weight of 30g / m2 used as the first inner sheet 32 and a continuous filament nonwoven material comprising wavy fibers and having a weight of 30g / m2 used as the first outer sheet 30 where the inner surface of the first inner sheet 32 was coated with heat-melt adhesive having a weight of 2g / m2 in the continuous “omega” pattern and these two sheets having been bonded together to form the first laminated sheet 37 with the first inner sheet 32 stretched in the transverse direction at a stretch radius of 2.48. On the other hand, the second laminated sheet 38 of the diaper 10 comprises an elastic fibrous nonwoven material having a weight of 30g / m2 used as the second inner sheet 33 and a continuous filament nonwoven material comprising wavy fibers and having a weight of 30g / m2 used as the second outer sheet 31 where the inner surface of the second inner sheet 33 was coated with heat-melt adhesive having a weight of 2g / m2 in the continuous “omega” pattern and these two sheets having been bonded together to form the second laminated sheet 38 with the second inner sheet 33 stretched in the transverse direction at a stretch radius of 2.48. The number of corrugations of the corrugated fibers of the first and second outer sheets 30, 31 is 15-20 times / 25mm. <Comparative Example 1>
    [00071] The diaper used as Comparative Example 1 has an outer sheet (a laminated sheet) defining an entire diaper contour comprising an inner sheet of a SMS non-woven fibrous material having a weight of 15g / m2 seated on a facing side for the skin of the same and an external sheet of a non-woven fibrous material of continuous filament having a weight of 17g / m2 seated on a side not facing the skin of the same. In addition, a plurality of lines (strands) being provided between the inner sheet and the outer sheet in the total area of the front and rear waist regions and fixed by heat-melted adhesive with elastic waist lines stretched in the transverse direction in a stretch radius from 2.9-3.4. In addition, a stretch radius of each elastic waist line depends on the region in which the respective elastic waist line is provided. <Comparative Example 2>
    [00072] The diaper used as Comparative Example 2 has an outer sheet (a laminated sheet) defining an entire diaper contour comprising an inner sheet of a continuous filament fibrous nonwoven material having a weight of 18g / m2 seated on a side facing the skin of the same and an external sheet of a non-woven fibrous material through air having a weight of 18g / m2 seated on a side not facing the skin of the same. In addition, a plurality of elastic waist lines are provided between the inner sheet and the outer sheet in the total area of the front and rear waist regions and fixed by heat-melt adhesive with the elastic waist lines stretched in the transverse direction within a radius of stretch of 2.5-3.9. In addition, a stretch radius of each elastic waistline depends on the region in which the respective elastic waistline is provided. <Measurement method>
    [00073] The KES method used for this measurement will be described in the text of the book entitled “The Standardization and Analysis of Manual Assessment (2nd Edition)”, published by Textile Mechinery Society of Japan, July 10, 1980, In addition, this method is described in WO 98/20822. Here, we basically refer to this text in the book for the measurement method and only measurement conditions for each mechanical property will be described below. <Traction property>
    [00074] Each sample of laminated sheet that has a width of 10cm and an initial length of 2.5cm will be subjected to being applied to a unidirectional stress extension of up to 100gf / cm and then the tensile properties are measured using manufactured KES-FBI by Katotech Co. Ltd, with the deformation speed set at 0.4% / sec. From the traction property curve obtained from the above measurement, several values are calculated: traction extension percentage - EMT (%), linear traction property curve - LT, WT traction workload (gf / cm2) and percentage of traction restoration - RT (%). The tensile property is measured only in the transverse direction since the usual diapers are extended only in the transverse direction <Flexion property>
    [00075] Each sample having a width of 5 cm is fixed between the mandrels of KES-FB2 manufactured by Katotech Co. Ltd. separated by 1 cm from each other and curved towards the inner surface by a maximum curvature of + 2.5 cm-1 and then curved towards the outer surface by a maximum curvature of - 2.5 cm-1 and finally allowed to return to its initial state for measuring its flexural property. The measurement was made with vertically suspended samples. The flexural stiffness B, which is a main value of the values for the longitudinal direction and for a transverse direction (gf * cm2 / cm) is calculated from the slope at the moment of flexion against the curvature, at a point at which it becomes stable after the start of flexion towards the inner surface; and the restoration property of flexion 2HB (gf * cm2 / cm) being calculated from its hysteresis width. In addition, the Bwale flexural stiffness was still calculated and compared for the longitudinal direction only. <Shear property>
    [00076] Each sample having a width of 5 cm is secured using KES-FB1 manufactured by Katotech Co. Ltd and the shear stiffness G (gf / cm * deg), in the transverse direction, unidirectional hysteresis shear, at the shear angle of 0 , 5 degrees 2HG (gf / cm) and unidirectional hysteresis shear, at an angle of 5 degrees 2HG5 (gf / cm), are measured under a force of 10 gf / cm. The shear property is measured only in the transverse direction since the usual diapers are extended only in the transverse direction. <Compression property>
    [00077] Each sample is extended 1.2 times in the transverse direction and a predetermined area being compressed between steel plates each having a 20mm2 flat circular terminal using KES-FB # manufactured by Katotech Co. Ltd. and then the compression property being measured at a compression speed of 150 sec / mm and under a maximum compression of 10 gf / cm3. The return process is also measured at a predetermined speed. A linearity curve of the compression property was obtained and the WC compression workload (gf * cm / cm2) and the percentage of RC compression restoration (%) was calculated. <Surface property>
    [00078] Each 10 cm and 20 cm of sample is established on a smoothed metal surface of the KES-FB4 test table manufactured by Katotech Co. Ltd, and, to measure the surface roughness, being contacted with a contactor having a width of 0.5 cm covered with a steel wire of piano having a diameter of 0.5 mm, and for measuring the friction of the surface, being contacted with 10 pieces of the same wire harmonized in the sample and applied with a compressional force of 50 fg per dead weight. In the measurement of surface roughness and surface friction, the samples were subjected to 20 gf / cm of uniaxial traction force and moved at a determined speed of 0.1 cm / sec per 2 cm. From the result, a main MIL friction coefficient, standard deviation of the MMD friction coefficient (only in the transverse direction) and main deviation of the SMD surface roughness (micro meter) were calculated. In this measurement, only the inner surface was measured since the inner surface contacts the user's skin directly. <Thickness>
    [00079] The thickness of each sample was measured under a pressure of 0.5 fg / cm2 as a standard measurement condition KES-F. <Measurement result>
    [00080] As shown in Table 2, among 17 parameters on basic texture values, for shear property parameters (G, 2HG, 2HG5), the bending property (B, 2HB) surface property (MIL, MMD, SMD ), WC compression workload and traction restoration percentage
    [00081] were better for Example 1 than for Comparative Examples 1 and 2.
    [00082] Specifically, for the shear property, while the higher value of each parameter means greater rigidity and less elasticity of the laminated sheet, the shear stiffness and shear hysteresis of 2HG, 2HG5 of the diaper laminated sheet of Example 1 are less than those of comparative examples 1 and 2. Consequently, the laminated sheet of Example 1 is softer than that of comparative examples 1 and 2.
    [00083] For the flexion property, while the higher value of each parameter means greater difficulty in flexing and restoring a curved position of the laminated sheet, flexion stiffness B and flexion hysteresis 2HB of the diaper laminate sheet of Example 1 being lower that of Comparative Examples 1 and 2. Consequently, the laminated sheet of Example 1 is more flexible, easier to bend and more repellent than those of Comparative Examples 1 and 2.
    [00084] For the surface property, while the higher value of each parameter means greater friction property and more roughness and more unevenness of the laminated sheet surface, meaning MIL friction coefficient, standard deviation of the MMD friction coefficient and main deviation of the SMD surface roughness of the laminated diaper sheet of Example 1 being less than that of comparative examples 1 and 2. Consequently, the laminated sheet of Example 1 has a smoother inner surface (surface in contact with the skin) and better texture than those of the Comparative Examples 1 and 2.
    [00085] Table 3 shows the distribution of the calculated log value of the logarithmic transformation of the value of each parameter obtained by the measurement (except for weight). Table 3 shows that characteristic values are distributed almost symmetrically around the mean values. The inventors of the present application reached a new formed conclusion that this distribution from -4.0 to + 4.0 is applicable for cotton garments. As described in the report entitled “A Development in the Objective Measurement of the Quality of Underwear Knit Fabrics”, Sem'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) Vol. 30, No. 3, p. T33-T50, published by Textile Machinery Society of Japan, 1986, the basic texture of a desired winter clothing, having these values, has an excellent handling value of Koshi (smoothness, flexibility), an excellent handling value of Numeri (smoothness) and excellent handling value of Fukumari (quality). As shown in Table 3, the diaper in Example 1 has almost all of the characteristic properties included in this item W and thus has a basic texture garment. On the other hand, the diapers of Comparative Examples 1 and 2 have values that are far from this limit and therefore do not have a garment with a Koshi handling value (softness, flexibility).
    [00086] [Table 3]

    [00087] The handling values of Koshi, Numeri and Fukurami can be calculated from the characteristic values of 16 parameters using the formula below: [Mathematics 1] lé
    HV; a basic texture value X: mechanical value of No. IX: main value of X; δ; standard deviation of X Co ', Ci; constant i = 1-16
    [00088] Figure 14 is a graph of calculated values from the complete count value (10) minus the handling values of Koshi, Numeri, Fukurami. As shown in Figure 14, for Numeri and Fukurami, there are no major differences between the values of the Example and Comparative Examples, but for Koshi, the value of Example 1 is 3.8 while the Comparative Example is 1.9, about half the value of that of the Example 1.
    [00089] The texture of the diaper cannot be absolutely evaluated based only on the KES value, which is the objective value for evaluating garments made of woven material, but at least according to these data, the diaper in Example 1 has better Koshi, flexibility and then called “flexible and soft texture” than in Comparative Example 1 (Uni-Charm product).
    [00090] Additionally, there is another examination of data based on a monitoring test. Specifically, Example 1 and Comparative Example 1 are worn on children (29 babies) and the amylase activity of each baby was measured for 3 minutes using "salivary amylase monitor" manufactured by Nipro Corporation. Similar data for nude babies were obtained and differences between these data and the above data were calculated. As a result, an amount of amylase secreted by each baby put in the diaper of Example 1 was able to be less than that of Comparative Example 1.
    [00091] According to the knowledge of the inventor of the present application, the greater amount of salivary amylase secreted means more stress experienced by babies. Consequently, the children placed in the diaper of Example 1 were more relaxed than those placed in Comparative Example 1.
    [00092] This result means that the effort experienced by the user (a) facing the clamp of the elastic lines at the waist or in the vicinity of the legs, the roughness of the diaper surface and the condition of dampness inside the diaper and others will be reduced with the diaper of Example 1. Specifically, since elastic tapes are used around the legs and laminated sheets comprising the elastic sheet as an inner sheet and an outer sheet including corrugated fibers are used for the front and rear waist regions, the diaper of Example 1 does not locally smother the user's waist or leg region and is fixed in a lateral region of the user's skin (a). In addition, as shown in the characteristic surface values of Example1 as measured above, the outer sheet has a smooth, soft surface having a quilt-like texture to reduce stress for the diaper wearer.
    [00093] Materials for the respective members constituting diaper 10 are not limited to those described in this specification and various types of material conventionally used in the relevant technical field may be selectively used. In addition, diaper 10 is not limited to disposable pants-type diapers and the present invention is also applicable to diapers called open-type diapers having front and rear waist regions not previously attached together along the side edges of the respective waist regions or for diapers having the front waist region 13, the rear waist region 14 and the region between legs 15 continuously formed.
    [00094] Insofar as the first and second outer sheets 30, 31 as well as the inner sheets 32, 33 are participants, these components of the disposable garment according to the present invention can be effectively used for various absorbent garments body fluid like urine-absorbent pads and menstrual pads.
    [00095] The aspects of the present invention described above can be harmonized in at least the following items: (i) a disposable garment article (10) having a longitudinal axis (P) extended in a longitudinal direction, a transverse axis (Q) orthogonal to the longitudinal axis and extended in a transverse direction, and comprising a side facing the skin, a side not facing the skin, a first waist region (13) corresponding to one of the front and rear waist regions, a second region waist (14) corresponding to the other of the front and rear waist regions and a region between legs (15) extended between the first and second regions, where at least one of the first and second waist regions as a whole, or in only its adjacent part a waist opening (24) is elastic and formed of an inner sheet (30) defining the side facing the skin and an outer sheet (32) defining the side not facing the skin and the side not vol applied to the skin of the outer sheet being formed substantially over an entire area with a plurality of points connected by thermocompression (20) regularly and intermittently harmonized at intervals, characterized by: - the outer sheet having thermocompressed regions (64) surrounded by the plurality of points connected by thermocompression; - the outer sheet is provided with a fibrous layer at least on the outer surface thereof and is formed of corrugated fibers of thermal adhesive (63); - the corrugated fibers are joined together by thermocompression bonding treatment at the points connected by thermocompression; - the outer sheet and the inner sheet are bonded together by the adhesive applied to at least one of the respective opposite surfaces thereof; and - the wavy fibers in the thermally compressed regions are harmonized to project outwardly in a direction of thickness of the outer sheet when the inner sheet contracts in the transverse direction.
    [00096] The aspect of the present invention described in the item above (i) may provide one or more of the following advantageous effects: (a) the wavy fibers are melted or interwoven only at points connected by thermocompression and not being connected by melting nor interlaced, so as to be freely mobile in non-thermocompressed regions surrounded by points connected by thermocompression. As a consequence, the corrugated fibers in the non-thermocompressed regions of the outer sheet may follow the movement of the inner sheet, which is bonded to the outer sheet by adhesive, in response to the contraction of the inner sheet, and the corrugated fibers in the non-thermocompressed regions protruding externally when a distance between each pair of points connected by thermocompression is reduced. As a result, the wavy fibers in the non-long regions are still projected externally and become bulky, providing a flexible and smooth texture.
    [00097] Additionally, one or more of the following configurations are provided according to the following, preferred and additional aspects, which can be taken alone or in combination with the other: (ii) the inner sheet is elasticized and bonded under tension in the direction transversal to the outer sheet by the adhesive (35); (iii) the plurality of points linked by thermocompression are harmonized in two directions to form a plurality of lines linked by thermocompression extended at a first angle with respect to the transverse axis and columns of the lines linked by thermocompression extended at a second angle with respect to the axis transversal and intersecting with the lines of the first of the lines connected by thermocompression to create a checkered pattern; (iv) the outer sheet is provided with a fibrous layer seated adjacent to the inner sheet and having non-corrugated fibers as the main material; (v) the inner sheet comprising a combined fiber of a thermally adhesive elastomeric fiber and a thermally adhesive non-elastomeric fiber as a material; (vi) the inner sheet having an outer layer (80) seated adjacent the outer sheet and comprising combined fibers of thermal adhesive elastomeric fibers and thermal non-elastomeric fibers as a material and an inner layer (81) comprising a thermal adhesive elastomeric fiber as a material; (vii) the front waist region formed by the outer and inner sheets exhibits a total light transmission of 40% or less as a whole, or only a part thereof, with the article worn on the user's body; (viii) non-thermocompressed regions are formed in the respective central zones of the regions with two or more central points connected by thermocompression; (ix) the wavy fibers in the non-thermally compressed regions are filament fibers; (x) the inner sheet and the outer sheet being bonded to each other with the adhesive coated uniformly and intermittently in the transverse direction to define bonded and unbound regions so that, in unbound regions, the outer sheet can project outwardly into a thickness direction of the outer sheet and to separate from the inner sheet to form gaps (72) between the outer sheet and the inner sheet in response to the contraction of the inner sheet in the transverse direction; (xi) the adhesive is applied at a weight in the range of approximately 1.0 to 5.0 g / m2 in a plurality of connecting lines each having a width in the range of 0.01 to 0.1 mm; (xii) a percentage of the area of the inner sheet covered by the adhesive against the entire inner surface of the inner sheet, being in an approximate range of 2 to 10%; (xiii) each of the intervals in which the adhesive is applied in the transverse direction is less than the width dimension of the cross pattern in the transverse direction; (xiv) the wavy fibers are separated from each other, or at least partially separated from each other, in the non-thermo-compressed regions; (xv) a flexural stiffness and a flexural restoration property of the first waist region comprising the inner sheet and the outer sheet according to the KES method, in the transverse direction being 0.144gf * cm2 / cm or less being 0 , 16gf * cm / cm or less respectively; (xvi) the adhesive is applied in a weight in the range of approximately 1.0 to 5.0g / m2 in a plurality of connecting lines, each of which has a width in the range of approximately 0.01 to 0.1mm; (xvii) a percentage of the area of the inner sheet covered by the adhesive for the entire inner surface of the inner sheet, in a range of approximately 2 to 10%; (xviii) the inner sheet being connected under tension in a stretch radius of 1.5 to 3.0 in the direction transverse to the outer sheet by the adhesive; (xix) the outer sheet having a percentage of elastic stretch in a range of 100 to 150% and the outer sheet having a percentage of elastic stretch in the range of approximately 150 to 300%; (xx) the outer sheet being a non-woven material of thermal continuous filament having a weight in the range of approximately 15 to 40 g / m2 and a fiber density in the range of approximately 0.1 to 0.06 g / cm3; (xxi) the inner sheet being of thermal adhesive elastomeric fiber of non-woven material having a weight in a range of approximately 20 to 50g / m2 and a density of fiber in a range of approximately 0.01 to 0.04g / cm3.
    [00098] The corrugated fiber has a stiffness in a range of approximately 0.5 to 3.0 dernieres and approximately 5 to 25 corrugations per 25mm; (xxii) thermocompression connecting lines intersecting each other to define a plurality of substantially non-thermocompressed rhombic regions; (xxiii) the points connected by thermocompression being circular with a diameter in the range of approximately 0.4 to 0.8 mm; (xxiv) a percentage of area of the inner sheet covered by adhesive for the entire inner surface of the inner sheet, being in a range of approximately 4 to 6%; (xxv) the adhesive is a heat-melted adhesive; (xxvi) a distance between each pair of adjacent connecting lines is in the range of approximately 1.0 to 2.5mm. More preferably, in a range of approximately 1.5 to 2.0mm; (xxvii) the plurality of connecting lines extended in the longitudinal direction and being spaced from one another in the transverse direction, each connection line substantially comprising a continuous repeated pattern formed by the parts of lines extended transversely and longitudinally alternating, where the parts of the adjacent longitudinally extended lines are spaced from one another in the transverse direction, and joined together by a part of the transversely extended line, and parts of the adjacent transversely extended lines being spaced from each other in the longitudinal direction and joined together by part of the line extended longitudinally, and all the connecting lines being in control of each other, so that all parts of the line of each connecting line lie parallel to the corresponding parts of the connecting line of all other connecting lines.
    [00099] In addition to the advantageous effect (a), the aspects of the present invention described in the items above (ii) - (xi) may provide one or more of the following advantageous effects: (b) as in item (iii), a plurality of points connected by thermocompression harmonized in predetermined directions to form a plurality of lines connected by thermocompression may provide the outer surface of the outer sheet with wrinkles along the lines of thermocompression. These wrinkles create a quilt pattern that in turn provides a decorative look. (c) as in item (iv), the fibrous layer defining the inner surface of the outer sheet primarily formed from the unrippled fibers provides the outer sheet with a flatter surface than the sheet on which the fibrous layer is formed only from wavy fibers. Said flat surface allows the outer sheet to be further stably bonded to the inner sheet by the heat-melted adhesive. (d) as in item (v), the inner sheet formed of combined fibers of elastomeric fibers and non-elastomeric fibers may provide good flexibility and a good texture compared favorably with the inner sheet formed only of elastomeric fibers. (e) as in item (vi), the outer layer formed of combined fibers of elastomeric fibers and non-elastomeric fibers and seated on the side of the outer sheet may make the surfaces of the inner sheet and the outer sheet relatively flat allowing these two sheets to be stably linked together. (f) as in item (vii), the region defined by the inner sheet and the outer sheet having a relatively low light transmission, specifically 40% or less, ensures to eliminate the possibility that the user's body can be visually recognized from the outside . In addition, said low light transmission makes it difficult to visually recognize a color difference between the region occupied by the absorbent structure and the region containing no absorbent structure and then the diaper having an external appearance as an underwear compared to a conventional disposable diaper. (g) as in item (viii), the central points connected by thermocompression formed in the central zone of the non-thermo-compressed region may form two or more protuberances that serve to improve the flexibility of the sheet as a whole. (h) as in item (ix), the continuous filament of the corrugated fibers constituting the outer sheet that is partially compressed can maintain the sheet-like structure even when the respective points connected by thermocompression are spaced apart by a certain distance. (i) as in items (x) to (xiii), the protrusions of the wavy fibers seated in the uncompressed regions and the gaps between the outer sheet and the inner sheet formed in response to the contraction of the inner sheet providing the outer sheet with volume and flexible and airy texture. (j) as in item (xiv), the wavy fibers in the non-thermally compressed regions, at least partially unconnected, allow them to move freely in order to improve the texture of the outer surface of the diaper. (k) as in item (xv), a flexural stiffness and a flexion restoration property of the first waist region and the second waist region comprising the inner sheet and the outer sheet of the diaper is relatively small, and thus, being very easy to flex with excellent flexing properties.
    [000100] According to the configurations above (ii) to (xv), the advantageous effect (s) established in (a) - (j) will be better ensured. Additional advantageous effects of the respective configurations can be obtained and discussed in the respective relative descriptions.
    [000101] The terms "first" and "second" here are used merely to distinguish similar elements. In addition, the phrase “first waist region” here means one of the front and rear waist regions, and the phrase “second waist region” means the other.
    权利要求:
    Claims (15)
    [0001]
    1. “DISPOSABLE CLOTHING ARTICLE”, having a longitudinal axis extended in a longitudinal direction, a transverse axis orthogonal to the said longitudinal axis and extended in a transverse direction, and comprising a side facing the skin, a side not facing the skin , a first waist region corresponding to one of the front and rear waist regions (13, 14), a second waist region corresponding to another of the said front and rear waist regions (13, 14) and a region between legs (15 ) extended between said first and second waist regions, where at least one of said first and second waist regions as a whole, or in only its adjacent part having a waist opening being elasticized and formed from an inner sheet (32) defining said side facing the skin and an external leaf (30) defining said side not facing the skin and said side not facing the skin of said leaf outer being substantially formed over its entire area with a plurality of thermocompression connection points regularly and intermittently harmonized at intervals, characterized in that said external sheet does not have thermocompressed regions (64) surrounded by said plurality of points connected by thermocompression, said external sheet is provided with a fibrous layer at least on said external surface thereof and being formed of thermal adhesive corrugated fibers, said corrugated fibers being bonded together by thermocompression bonding treatment at said thermocompression bonded points, said outer sheet and said inner sheet being bonded with each other by the adhesive applied to at least one of the respective opposite surfaces thereof, and said wavy fibers in said non-thermocompressed regions are harmonized to project outwardly in a thickness direction of said outer sheet when said fo internal work to contract in the referred transverse direction.
    [0002]
    2. "CLOTHING ARTICLE", according to claim 1, characterized in that said inner sheet is elasticized and bonded under tension in the said direction transverse to the outer sheet by the adhesive.
    [0003]
    3. "CLOTHING ARTICLE", according to any one of the preceding claims, characterized in that said plurality of points connected by thermocompression is harmonized in two directions to form a plurality of lines connected by thermocompression, and said lines connected by thermocompression ( 21, 22) comprise wires of thermocompression-connected lines extended at a first angle with respect to said transverse axis and columns of thermocompression connecting lines extended at a second angle with respect to said transverse axis and intersecting with said wires of the first thermocompression-linked lines (21, 22) to create a cross pattern.
    [0004]
    4. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said outer sheet is provided with a fibrous layer seated adjacent to said inner sheet, which comprises non-corrugated fibers as its main material.
    [0005]
    5. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said inner sheet comprises a combination of thermal adhesive elastomeric fibers and thermal adhesive non-elastomeric fibers.
    [0006]
    6. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said inner sheet has a seated outer layer adjacent to said outer sheet and comprising a combination of thermal adhesive elastomeric fibers and thermal adhesive non-elastomeric fibers and a inner layer comprising only thermal adhesive elastomeric fibers.
    [0007]
    7. “CLOTHING ARTICLE”, according to any one of the preceding claims, characterized in that said front waist region, formed in said outer leaf and in said inner leaf, exhibits total light transmission of 40% or less, as a all, or only a part of it, with the aforementioned article worn on the user's body.
    [0008]
    8. "CLOTHING ARTICLE", according to any one of the preceding claims, characterized in that the said non-thermocompressed regions are formed in the respective central zones of the same with two or more points connected by thermocompression.
    [0009]
    9. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said wavy fibers in said non-thermocompressed regions are filament fibers.
    [0010]
    10. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said inner sheet and said outer sheet are interconnected with said uniformly and intermittently coated adhesive in said transverse direction to define connected regions (73 ) and unbound regions, so that, in said unbound regions, said outer sheet is spaced from said inner sheet, to form gaps between said outer sheet and said inner sheet in response to the contraction of said inner sheet in said direction transversal.
    [0011]
    11. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that the adhesive is applied in a weight in the range of approximately 1.0 to 5.0g / m2 in a plurality of connecting lines each of which is of a width in a range of approximately 0.01 to 0.1 mm.
    [0012]
    12. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that a percentage of the inner sheet area covered by the adhesive for the entire inner surface of the inner sheet is preferably in the range of approximately 2 to 10%.
    [0013]
    13. "CLOTHING ARTICLE" according to any one of claims 10, 11 and 12, characterized in that each of said intervals in which said adhesive is applied in said transverse direction is less than the width dimension of said cross pattern in said transverse direction.
    [0014]
    14. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized in that said wavy fibers are separated from each other, or at least partially separated from each other, in said non-thermo-compressed regions.
    [0015]
    15. "CLOTHING ARTICLE" according to any one of the preceding claims, characterized by a flexural stiffness and a flexural restoration property of the first waist region comprising said inner sheet and said outer sheet, in accordance with KES method, in the referred transverse direction is 0.144 gf * cm2 / cm or less and 0.16 gf * cm / cm or less, respectively.
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    同族专利:
    公开号 | 公开日
    AU2010287946B2|2015-01-22|
    ZA201201850B|2012-11-28|
    JP5592168B2|2014-09-17|
    KR20120067353A|2012-06-25|
    KR101576706B1|2015-12-10|
    AU2010287946A1|2012-04-19|
    TWI516252B|2016-01-11|
    BR112012004363A2|2020-08-11|
    CN102573730A|2012-07-11|
    US20120165774A1|2012-06-28|
    AR078005A1|2011-10-05|
    EA021865B1|2015-09-30|
    BR112012004363B8|2021-06-22|
    CN102573730B|2015-08-05|
    EP2473146B1|2014-08-06|
    TW201110948A|2011-04-01|
    EP2473146A4|2013-06-12|
    EP2473146A1|2012-07-11|
    JP2011067602A|2011-04-07|
    WO2011024489A1|2011-03-03|
    EA201290079A1|2012-12-28|
    US9283125B2|2016-03-15|
    MY154115A|2015-05-05|
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    法律状态:
    2020-08-25| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-10-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-17| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-30| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/03/2021, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-06-22| B16C| Correction of notification of the grant|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/08/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2009-201056|2009-08-31|
    JP2009201056|2009-08-31|
    JP2010134547A|JP5592168B2|2009-08-31|2010-06-11|Disposable wearing items|
    JP2010-134547|2010-06-11|
    PCT/JP2010/005357|WO2011024489A1|2009-08-31|2010-08-31|Disposable wearing article|
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