• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    disposable garment the present invention provides a disposable garment having a rear waist region (14) which includes a rear main waist section (18) which faces the front waist region (13) and a front section buttock cover (19) located adjacent to a crotch region 15. the rear main section of waist 18 is divided into an upper area 31 situated adjacent to a waist opening 22 and an upper area 32 situated adjacent to the crotch region 15 where a tensile stress per unit of wide dimension in the buttock covering section (19) is lower than tensile stress per unit of wide dimension in the lower area 32 of the main rear waist section (18).
    公开号:BR112012012622B1
    申请号:R112012012622-9
    申请日:2010-11-25
    公开日:2020-10-06
    发明作者:Shunsuke Takino
    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 such as disposable diapers each having a buttock cover section adapted to cover the user's buttocks, hygienic training pants, pants for urinary incontinence or disposable pants for menstruation. TECHNICAL STATUS
    [0002] An article of disposable clothing having a section adapted to cover a user's buttocks is already well known. For example, Patent Document 1 (JP 2008-178682 A) refers to an article of clothing having front and rear waist regions, a crotch region, elastic waist members respectively forming the front and rear waist regions and one liquid-absorbing chassis attached to an internal surface of the elastic waist members where an additional buttock covering section extends from the rear waist region towards the crotch region.
    [0003] In the garment according to the invention disclosed in Patent Document 1 (JP 2008-178682 A), the front waist region, the rear waist region and the buttock covering section extending upwards from the rear waist region are respectively provided with a plurality of elastic straps so that the front and rear waist regions can suitably fit the user's body and the buttock covering section can be prevented from lifting and / or turn around while wearing the garment. Furthermore, the tensile force is well balanced between the front waist region and the rear waist region so that a possible deviation in shape of the garment related to the front waist region or the rear waist region can be effectively restricted.
    [0004] However, this article of clothing, resistant to traction of the elastic strips arranged on the bottom cover section, is adjusted to be greater than the tensile strength of the elastic strips arranged on a lower section of the back waist region to emphasize the force that works to pull up the buttock covering section obliquely. Consequently, this relatively high tensile strength helps the tensile strength of the elastic strips placed on the liquid absorbent structure to bring the liquid absorbent structure into an excessively tight contact with the user's skin and the feces discharged by the same soiling his skin.
    [0005] Documents EP2087871A1 and US2005 / 107763 A1 disclose disposable garments with different tension loads in the waist regions.
    [0006] This is the main objective of the present invention to provide an improved disposable garment so that no displacement of the garment occurs during the use of the garment and there is no substantial anxiety that the feces discharged by the user may soil their skin. .
    [0007] [List of citations]
    [0008] [Doc. 1] JP 20058-1278682 A
    [0009] [Summary of the Invention]
    [00010] A disposable garment according to one or more configurations of the present invention has a longitudinal direction, a transverse direction orthogonal to the longitudinal direction and comprises a front waist region, a rear waist region, a crotch region that extends between the front and rear regions, a waist opening and a pair of leg openings, elastic waistband cushions defining the front and rear waistband regions and a liquid absorbent structure fixed on the inner surface of the elastic waist cushioning to define at least least part of the crotch region.
    [00011] In this article, the rear waist region comprises a rear waist region and a rear main waist section and a buttock covering section located adjacent to the crotch region; and the rear main waist section is divided into an upper area located adjacent to the waist opening and a lower area located adjacent to the crotch region and the anterior waist region being divided into an upper area located adjacent to said waist opening and a lower area located adjacent to said crotch region and a tensile stress per unit of width dimension in the buttock covering section is lower than the tensile stress per unit of width dimension in the lowest area of the main waist section where the tension of tension per unit of width dimension in the lower area of the anterior waist region is higher than the tension of tension per unit of width dimension in the lower area of the main section of the posterior waist. [Brief Description of Drawings] [Figure 1]
    [00012] Figure 1 is a perspective view of a disposable diaper as an example of a disposable garment according to the first configuration of the present invention.
    [00013] Figure 2 is a partially cropped plan view showing the disposable diaper having been opened planarly in a front-to-back direction after the front and rear waist regions have been detached from each other at the sealing points and seen from inside the diaper.
    [00014] [Figure 3]
    [00015] Figure 3 is a sectional view taken along the line ll-lll of figure 2. [Figure 4]
    [00016] Figure 4 is a sectional view taken along line IV-IV in figure 2. [Figure 5]
    [00017] Figure 5 is a plan view of the diaper showing the diaper open and flat excluding the liquid-absorbent structure, the first and second inner sheets and the first and second fastening sheets. [Figure 6]
    [00018] Figure 6 is a plan view similar to Figure 5, showing a second configuration of the present invention. [Figure 7]
    [00019] Figure 7 is a plan view similar to Figure 5 showing a third configuration of the present invention. [DETAILED DESCRIPTION] First Configuration
    [00020] Referring to figures 1 and 2, the diaper has a longitudinal direction Y, a transverse direction x orthogonal to the longitudinal direction X, a side that contacts the skin and a side that does not contact the skin and comprises elastic padding of annular waist 11 and a liquid-absorbent structure attached to the side that contacts the skin of the elastic waist pad 11 to define a front region of waist 13, a rear region of waist 14 and a crotch region 15 extending between the front and waist 13, 14 in the longitudinal Y direction.
    [00021] The elastic cushions 11 comprise a front cushion of waist 16 forming a front region of waist 13 and a rear cushion of waist 17 forming the rear region of waist 14.
    [00022] The front waist cushion 16 has a regularly rectangular shape which is relatively long in the transverse direction X and contoured by an inner end 16a that extends in the transverse direction X to intercept the liquid absorbent structure 12, an outer end 16b spaced from and opposite the inner end 16a in the longitudinal direction Y and extending in the transverse direction X and lateral edges 16c, 16d extending between the inner and outer ends 16a, 16b in the longitudinal direction Y, spaced and opposite each other in the direction transversal X.
    [00023] Similar to the front waist cushion 16, the rear waist cushion 17 has a substantially rectangular shape which is relatively long in the transverse direction X and contoured by an inner end 17a extending in the transverse direction X to intercept the absorbent structure of liquid 12, an outer end 17b specified from and opposite the inner end 17a in the longitudinal direction Y and extending in the transverse direction X and side edges 17c, 17d extending between the inner and eternal ends 17a, 17b in the longitudinal direction Y and spaced and opposite each other in the X transverse direction. The rear waist cushion 17 comprises a rear main section of waist 18 adapted to fit the user's rear waist and a buttock covering section 19 extending from the main section waist back 18 towards the crotch region 15 and adapted to contact the user's buttocks.
    [00024] The side edges 16c, 16d of the front waist cushion 16 are placed on the same level together and joined in the respective parts (side edges of the main rear section of waist 18) of the side edges 17c, 17d in the rear cushion of waist 17 in attachment points intermittently arranged in the longitudinal Y direction in various configurations, such as zigzag on which a waist opening 22 and a pair of leg openings 23 are formed (see figure 1). For this bonding treatment, various bonding means such as thermal relief or ultrasonic bonding can be used.
    [00025] For convenience of description, the front waist region 13 is divided into an upper area 24 situated on the side of the outer edge 16b of the front waist cushion 16 and a lower area 25 located on the side of the crotch region 15.
    [00026] The front waist cushion 16 comprises a first inner sheet 26 located on the side that contacts the skin, the first outer sheet 27 situated on the side that does not contact the skin, staying away from the user's skin and a plurality of elements elastics 28, 29 in the form of threads or strips sandwiched between the first inner sheet 26 and the first outer sheet 27 associated with the upper and lower sections of the front waist region 13, respectively. The elastic elements 28 associated with the front waist area 24 are generally arranged over an entire area of the upper area 27 to be spaced from each other by a given dimension in the longitudinal direction Y and the elastic elements 29 associated with the lower section 25 are arranged over an entire area of the lower section 25 spaced apart by a given dimension in the longitudinal direction Y. These elastic members 28, 29 with the upper and lower sections 24, 25 respectively, are fixed under tension in the transverse direction X between the first inner sheet 26 and the first outer sheet 27 by hot glue (not shown) and thereby the front waist pad 16 is elasticized in the X direction.
    [00027] The rear main section of waist 18 of the rear region of waist 14 is divided into an upper area 31 situated on the side of the outer end 17b of the rear cushion of waist 17 and a lower area 32 situated on the side of the crotch region 15 .
    [00028] The buttock covering section 19, divided into an upper portion 19U adjacent to the main rear section of waist 18, a lower portion 19D situated adjacent to the crotch region 15 and a median portion 19M situated between the upper portion 19U and the lower portion 19D. The buttock covering section 19 includes both sides 19A., 19B situated on the outside of the liquid absorbent structure 12 in the transverse direction X. These side portions 19A, 19B are not fixed to the liquid absorbent structure 12, in other words, left free from the liquid absorbent structure 12. While the buttock covering section 19 is divided into the upper portion 19U, the middle portion 19M and the lower portion 19D according to the present invention, it is possible to divide the buttock covering section 19 only in the upper portion 19U and in the lower portion 19D.
    [00029] The rear waist cushion 17 comprises a second inner sheet 33 situated on the side that contacts the skin, a second outer sheet 34 located on the side that does not contact the skin and a plurality of elastic elements 35, 36 in the form of threads or strips extending in the transverse direction X and sandwiched between the second inner sheet 33 and the second outer gap 34 to be associated with the upper and lower portions 31 ,. 32 of the main waist section 18, respectively, and the elastic elements 37 associated with the buttock covering section 19.
    [00030] The elastic members 35 associated with the upper area 31 of the main rear section of waist 18 are arranged over the upper area 31 generally over its entire area to be spaced from each other by a given dimension in the longitudinal direction Y and elastic elements 36 associated with the lower area 32 of the rear main section of waist 18 are also arranged over the lower area 32 substantially over their entire area to be spaced from each other by a rear main section of waist 18 by a given dimension in the longitudinal direction Y. These elastic members 35, 36 are fixed under tension in the transverse direction X between the second inner sheet 33 and the second outer sheet 34 by means of hot glue (not shown) and thereby the rear waist cushion 17 is elasticized in the transverse direction X .
    [00031] The elastic members 37 associated with the buttock covering section 19 are arranged so that they are spaced apart by a given dimension in the longitudinal direction Y from the upper portion 19U to the lower portion 19D of the buttock covering section 19 More specifically, the upper portion 19U includes two of the elastic elements 37 and the middle portion 19M, as well as, the lower portion 19D, respectively includes one of the elastic elements 37. The side portions 19A, 19B are wrapped around these elastic members 37 in contraction state associated with the buttock coverage section 19.
    [00032] The liquid-absorbent structure 12 is contoured by the front and rear ends and the side edges opposite the front and rear ends to present a rectangular shape which is relatively long in the longitudinal Y direction and extends across the crotch region 15 within the front and rear waist regions. Specifically, the liquid absorbent structure 12 has a front end section 12A located in the front waist region 13, a rear end section 12B located in the rear waist region 14 and a middle region 12C extending between the front and rear sections 12A, 12B to define the crotch region.
    [00033] The liquid-absorbent structure 12 preferably comprises a liquid-permeable topsheet 40 situated on the side facing the user's skin, a set of liquid-absorbing core 41, consisting of a liquid-absorbing core formed by the mixture of, for example, felted cellulose fibers and superabsorbent polymer particles wrapped with a liquid dispersing sheet, and a liquid impermeable cover sheet 42 located on the side that does not turn towards the skin to cover the outer surface of the liquid absorbent core assembly 41. liquid absorbent core assembly 41 is internally concave in the vicinity of its median section in the longitudinal direction Y to reduce its width dimension. Between the liquid absorbent core assembly 41 and the cover sheet 42, a liquid impermeable leak barrier sheet 43 is made of plastic material.
    [00034] The cover sheet 42 extends externally from the peripheral edge of the liquid absorbing core assembly 41 to define the extreme flaps 44 extending in the transverse direction X on the outside of the respective ends of the liquid absorbing core assembly 41 opposite each other in the longitudinal direction Y and the side flaps 45 extend in the longitudinal direction Y outside the respective side edges of the liquid absorbent core assembly 41 opposite each other in the transverse direction X. The side flaps respectively include elastic elements 46R 46L associated with the respective leg openings. The elements 46R, 46L respectively comprise three elastic strips under tension for the respective side flaps 45. With said arrangement, the side flaps 41 assist the respective elastic members 46R, 46L which are, in turn, associated with the leg openings to function as sealing hems kept in close contact around the user's thighs.
    [00035] The side portions of the cover sheet 42 respectively defining the side flaps 45 are partially folded back internally to form a pair of folded regions 48R, 48L that extend in the longitudinal direction Y. The respective folded regions 48R, 48L include two of those elastic strips as elastic members 49 fixed under tension on the respective internal surfaces of these folded regions 48R, 48L with hot glue (not shown). With the diaper 10 worn on the user's body, the folded regions 48R, 48L and parts of the respective side flaps 44 are spaced upwards from the inner sheet 40 under contraction of the elastic elements 49 associated with the hems to form a pair of hems. seal functioning as a lateral leak preventer of bodily debris from the diaper 10.
    [00036] As suitable material for the elastic elements 46R, 46L associated with the respective leg openings, as well as, for the elastic elements 49 associated with the sheaths, materials in the form of strips or threads each having a rubber elasticity and a diameter in the range of about 350 to 1240 dtex and an elongation ratio in the range of 2.0 to 3.0 can be used. The adjacent elastic members are preferably spaced at a distance in the range of 3.0 to 6.0. The number of elastic elements 46R, 46L associated with the leg openings, as well as the number of elastic elements 49 associated with the sheaths can be one or more so that the desired tensile strength is guaranteed. The other parameter such as a diameter, a distance between each pair of adjacent elements and a stress ratio can be appropriately adjusted depending on the number of these elastic elements.
    [00037] The front end and its proximity to the liquid-absorbing structure are fixed on the surface facing the user's skin 12 are fixed on the surface that does not contact the skin of the user of the front waist cushion 16 by hot glue and the The inner surface of this region is covered with a first fixing sheet 51 extending in the transverse direction X over the inner surface of the front waist pad. The rear end section and its proximity to the liquid absorbent structure 12 are attached to the surface that contacts the skin of the rear main section of waist 18 on the rear pad of waist 17 by hot glue adhesive (not shown) and the inner surface is region is covered with a second fixing sheet 52 extending in the transverse direction X.
    [00038] According to one or more configurations of the present invention, a sheet material is folded in two layers respectively which serves as the first inner sheet 26 and the first outer sheet 27 and the folded line serves as the peripheral edge of the waist opening. 22 are joined together with hot glue (not shown) applied to the inner surface of at least one of the two layers. According to other configurations, the first inner sheet 26 and the first outer sheet 27 can be provided as two separate sheets. It should be appreciated that, according to the present invention, the two leaf members placed on the same flat level or overlapping together can be joined together by means of hot glue or may not be joined unless otherwise specified .
    [00039] While the front and rear cushions 16, 17 are respectively provided with a plurality of elastic elements and thereby elastic according to the present configuration, except for the buttock covering section, it is possible to form the front and rear cushions 16 , 17 with a sheet material which itself has the desired elasticity or the strands or strips can be replaced with elastic bands or elastic sheets to elasticize the front and rear waist pads 16, 17.
    [00040] Rather than forming the buttock covering section 19 to be contiguous with the rear main section of waist 18, it is possible to form the buttock covering section 19 separately from the main rear section of waist 18. In the latter case, the buttock cover section 19 is preferably formed of a leaf member having comparative flexibility with or greater than a flexibility of the leaf material forming the rear main waist section 18.
    [00041] Figure 5 is a plan view of the diaper showing the diaper planarly open excluding the liquid absorbent structure 12, first and second inner sheets 26, 33 and first and second fixing sheets 51, 52 of the front and rear pads. waist 16, 17, respectively. In figure 5, the respective external shapes of the liquid absorbent structure 12 and the liquid absorbent core assembly 41 are indicated by dashed lines.
    [00042] As will be apparent from figure 5, the first outer sheet 27 and the second outer sheet 34 are provided on the inner surfaces thereof with a plurality of elastic elements 28, 29, 35, 36, 37 in the form of threads and strips arranged to extend in the transverse direction X and to be spaced apart by dimensions established in the longitudinal direction Y. The respective elastic elements are formed of synthetic or natural material having rubber elasticity. For example, in the case of baby diapers, dimensions of the respective diaper regions depend on the size of the diaper G, M or P and, in the case of the diaper of size G, a total length of the diaper 10 in the longitudinal direction Y is in a range from 470 to 510 mm, length dimensions of the front waist region 13 and the main rear section of waist 13 in the longitudinal direction Y is in a range of 95 to 125 mm and a dimension of length of the buttock covering section 19 in the direction longitudinal Y is in a range of 45 to 65 mm. These dimensions of the respective regions are based on the hypothesis that diaper 10 is of size G. Also in the case of diapers for adults, the dimensional proportion of the respective regions or sections is similar to the dimensional proportion of diapers for babies.
    [00043] The elastic elements 28 associated with the upper area 24 for the front waist region comprise four elastic elements located in the vicinity of the outer end 16b of the front waist cushion 16 each having a diameter in a range of 50 to 500 dtex and an elongation ratio in a range of 2.4 to 2.8 and eleven elastic elements each having a diameter in a range of 450 to 500 dtex and an elongation ratio in a range of 1.8 to 2.4. Each pair of adjacent elastic elements are spaced apart in a range of 5.0 to 6.0mm.
    [00044] In this configuration, the elastic elements 29 associated with the lower area 25 of the front region of waist 13 comprise five elastic elements each having a diameter in the range of 450 to 500dtex and an elongation ratio in the range of 1.8 to 2.4 . Each pair of adjacent elastic elements are spaced apart by a range of 5.0 to 6.0 mm. A distance dimension R1 between the lowest of the elastic elements 29 associated with the lowest area 25 of the front waist region 13 and the end bottom of the first outer sheet 27 is in a range of 5.0 to 20.0 mm.
    [00045] The elastic elements 35 associated with the upper portion 31 of the rear main section of waist 18 comprise five elastic elements allocated on the side of the waist opening each having a diameter in the range of 450 to 500dtex and an elongation ratio in one 2.4 to 2.8 range and eleven elastic elements each having a diameter in a range of 450 to 500dtex and an elongation ratio in a range of 1.8 to 2.4. A distance dimension between the adjacent elastic elements is in a range of 5.0 to 6.0 mm.
    [00046] The elastic elements 36 associated with the lower area 32 of the main rear section of waist 18 comprise five elastic elements each having a diameter in the range of 450 to 500 dtex and an elongation in the range of 1.8 to 2.4 . A distance dimension between the adjacent elastic elements is in a range of 5.0 to 7.0 mm.
    [00047] The elastic elements 37 associated with the buttock covering section 19 comprise four elastic elements each having a diameter in the range of 450 to 500dtex and an elongation in the range of 1.8 to 2.6. A distance dimension R2 between the lower elastic element 37 in the upper portion 19U and the elastic element 37 allocated in the middle portion 19M, as well as a distance dimension R3 between the elastic element 37 allocated in the middle portion 19M and the elastic element 37 allocated in the lower portion 19D is in a range of 15.0 to 25.0mm. A distance dimension R4 between the elastic element 37 allocated in the lower portion 19D and the lower end of the second outer sheet 34 is in a range of 5.0 to 20mm.
    [00048] It is assumed that the present conditions as has been indicated are satisfied by the respective elastic elements, a correlation between the tension tension by dimension of width in the lower area 32 of the main section; back 18 and the tensile stress per unit width in the buttock covering section 19 can be represented by the lower area of the main rear waist section 18> buttock covering section 19. More specifically, the tensile stress per dimension unit width in the lower area 32 of the main rear section of waist 18 is in a range of 0.14 to 0.35 / 20mm and the tensile stress per unit of width dimension in the buttock cover section 19 is in a range of 0.14 to 0.17N / 20mm. The "Width dimension unit" in the present configuration refers to a length of (20mm) in the longitudinal direction Y in the respective regions or sections or portions.
    [00049] The tensile stress per unit width in area 32 of the rear waist region 14 and of the buttock coverage section 19 were measured by a method which will be described below.
    [00050] First the lower area 32 of the rear waist region 14 and the buttock covering section 19 were cut respectively in a size of 20 mm (in the longitudinal direction X) x 345 mm (in the transverse direction Y) as pieces for testing. These test pieces were measured with an Instron tester “Instron 5564, Instrob Corp”.
    [00051] Specifically, one end portion of the test piece in the transverse direction X was secured by a mandrel on one side and the other end portion was secured by a mandrel on the opposite side to conduct the stress test in the transverse direction X. Based on a distance P between the mandrels, no external force was exerted on the test piece, ie allowing the test piece to be free of shrinkage and a distance Q between the mandrels by stretching the test pieces until the test pieces stretched at most, the test piece was stretched for 1 minute so that the distance from the chucks could be maintained at a value represented by (P + Q) / 2. One minute later, the tension exerted between the chucks was measured as tensile stress per unit of width dimension (the length in the longitudinal direction: 20mm) of the respective test pieces.
    [00052] The tension per unit of width dimension in the lower area 32 of the main rear section of waist 18 is set to be higher than the tension per unit of width dimension in the buttock covering section 19 and to have a desired level of tensile stress. It is hereby guaranteed that the rear main section of waist 18 can stably fit the user's body. With said tension tension adjustment, the buttock covering section 19 would not excessively tighten on the user's buttocks and compress the feces discharged by the user towards the user's body.
    [00053] A tensile stress per unit dimension wide in the lower area 25 of the front region of waist 13 is set to be higher than the tensile stress per unit dimension wide in the lower area 32 of the main rear section of waist 18 to ensure a good balance of the traction tension exerted around the waist in a direction facing the diaper backwards 10 and thereby restricting the possibility of the diaper 10 moving back and forth during use. On the other hand, for example, the tensile stress per unit of width dimension in the lower area 25 of the front waist region 13 should be equal to the tensile stress per unit of width dimension of the lower area 32 of the main rear section of waist 18, the buttock section 19 integrally or separately provided in the rear waist region 14 may work to pull the diaper 10 back. According to one or more preferred configurations of the present invention, tensile stress levels per unit of width dimension in the respective regions or sections or portions are correlated with each other so that the tensile stress in the lower area 25 of the front waist region 13 ie = the tensile stress in the lower area 32 of the rear main waist section 18 + the tensile stress of the buttock covering section 19 or the tensile stress in the lower area 25 of the front waist region 13 = the tensile stress in the lower area 32 of the rear main section of waist 18 + the tension in the upper portion 19U of the buttock covering section 19. According to the present configuration, the dimension of the distance (i.e., distance) from the respective elastic elements can be adjusted to ensure the desired correlation between the tensile stress levels per unit of width dimension in the respective areas, sections or portions. For example, when the tensile stress levels per unit dimension wide can be correlated with each other so that the tensile stress per unit dimension wide in the lower area 32 of the main rear section of waist 18> than the traction per unit of width dimension of the buttock covering section 19, the dimension of the distance by which the elastic elements 37 associated with the buttock covering section 19 will be greater than the dimension of the distance by which the elastic elements 36 associated with the lower area 32 of the rear main section of waist 18. As a consequence, furrows formed in the longitudinal Y direction become relatively larger and thereby improve and flexibility and appearance. It is also possible, instead of adjusting the dimension of the distance (that is, the spacing), to create the desired correlation by adjusting a diameter of the elastic element and its stretch ratio. Second Configuration
    [00054] In diaper 10 according to one or more configurations according to figure 6, the elasticity of the buttock covering section 19 is deactivated in the region occupied by the liquid absorbent structure 12. The expression “deactivation of elasticity” used here means a case in which the elastic elements 37 associated with the buttock covering section 19 are cut or removed and are generally not present in this region occupied by or a case in which these elastic elements 37 do not express contractility.
    [00055] The elasticity of the elastic elements 37 associated with the upper portion 19U and the lower portion 19D is deactivated in the region occupied by the liquid-absorbent structure 12 and as a consequence the user's skin can still be reliably protected from being soiled by bodily debris. It is possible to have elastic elements 38 associated with the buttock covering section 19 to extend to the lateral portions of the liquid absorbing structure 12. With said arrangement, the tensile strength of the elastic elements 37 associated with the buttock covering section 19 prevents the liquid absorbent structure 12 from being displaced without interfering with the liquid absorption performance of the liquid absorbing core assembly 41 since the tensile stress is not exerted on this core assembly 41. Third Configuration
    [00056] According to one or more configurations according to figure 7 the elastic elements 37 are allocated in the upper portion 19U and the lower portion 19D of the buttock covering section 19 but not allocated in the median portion 19M. As a result, the upper portion 19U and the lower portion 19D are placed in contact with the user's skin under a tensile force of these elastic elements 37 and the middle portion 19M is protruded externally to form a free space that extends in the transverse direction X between the user's skin and the 19M median portion. As a result, the side portions 19A, 19B of the buttock covering section 19 can be maintained in a coating state along the shape of the user's buttocks to fit around the user's body without squeezing the user's body. In addition, diaper 10 becomes airy, with an impression of flexibility as seen from its rear, and in combination with the ruffle shape to present an underwear-like external appearance.
    [00057] The aspects of the present invention described above can be arranged in at least the following items: (i) An article of clothing (10) having a longitudinal direction (Y), a transverse direction (X) orthogonal to said direction and comprising a front waist region (13), a rear waist region (14), a crotch region (15) that extends between said front and rear waist regions, a waist opening (22) and a pair of openings legs (23), annular elastic waist pads (11) defining said front and rear waist regions, and a liquid-absorbent structure (12) attached to the inner surface of said elastic waist pads to define at least a part of said crotch region, where: - said rear waist region comprises a main rear waist section (18) and a buttock covering section (19) located adjacent to said crotch region; - said rear main waist section is divided into an upper area (31) adjacent to said rear main waist section and a lower area (32) adjacent to said crotch region; and - a tensile stress per unit dimension wide in said buttock covering section is less than the tensile stress per unit dimension wide in said lower area of said main rear waist section.
    [00058] The present invention described in the item above (i) can provide one or more advantageous effects as follows:
    [00059] According to the present invention, the tensile stress per unit dimension wide in the buttock covering section is established to be less than the tensile stress per unit dimension wide in the lower area of the main section. waist back to ensure good balanced traction tension between the front waist region and the back waist region of the diaper and thereby prevent the user's feces discharged from the buttock cover section from soiling the skin .
    [00060] Additionally, one or more configurations are provided according to the additional aspects: (ii) The buttock covering section is divided into an upper portion (19U) located adjacent to said main rear waist section and a lower portion ( 19D) situated adjacent said crotch region where a tensile stress per unit of width dimension at least in said upper portion is less than the tensile stress per unit of width dimension of said lower area of said main rear section of waist . (iii) The anterior waist region is divided into an upper area (24) located adjacent to said waist opening and a lower area (25) located adjacent to said crotch region where a tensile stress per unit of width dimension in said inferred area of said anterior region is greater than a tensile stress per unit of width dimension in a lower area of said posterior main waist section. (vi) The front waist region includes a plurality of elastic elements associated with it, willing to extend in said transverse direction and spaced apart in said longitudinal direction; said rear waist region includes a plurality of elastic elements associated therewith, arranged to extend in said transverse direction and spaced apart in said longitudinal direction; said buttock covering section includes a plurality of elastic elements (37) each in the form of a thread or a strip associated therewith, arranged to extend in said transverse direction and spaced apart in said longitudinal direction; and a spacing between said elastic members associated with the buttock covering section that is greater than the spacing between said elastic members associated with the front and rear waist regions. (v) The elastic elements associated with said buttock covering section are deactivated in a region occupied by said liquid-absorbing structure. (vi) The buttock covering section includes, between said upper portion and said lower portion, a median portion (19M) provided without any of the elastic elements associated with it.
    [00061] (viii) The garment has a total diaper length (10) in the longitudinal direction (Y) in a range from 470 to 51 Omm, length dimensions of the front waist region (13) and the main rear section waist (18) in the longitudinal direction (Y) in a range of 95 to 125mm and a dimension of length of the buttock covering section (19) in the longitudinal direction (Y) in a range of 45 to 65mm. (viii) The elastic elements (28) associated with the upper area (24) for the front waist region comprising four elastic elements located in proximity to the waist opening each having a diameter in the range of 450 to 500dtex and a ratio elongation in a range of 2.4 to 2.8 and eleven elastic elements each having a diameter in a range of 450 to 500 dtex and an elongation ratio in a range of 1.8 to 2.4 where in each pair of elements adjacent elastics there is a spacing around 0.5 to 6.0 mm and the elastic elements (29) associated with the lower area 25 of the front waist region (13) comprising five elastic elements each having a diameter in a range of 450 up to 500dtex and an elongation ratio in a range of 1.8 to 2.4 where each pair of adjacent elastic elements is spaced apart by a range of 5.0 to 6.0mm and a distance dimension R1 between the lowest of the elements elastic bands (29) associated with a lower area (25) of the front waist region (13) and a lower end of the first outer sheet (27) is in a range of 5.0 to 20.0mm. (ix) The elastic elements (35) associated with the upper portion (31) of the main rear waist section (18) comprising five elastic elements located beside the waist opening each having a diameter in the range of 450 to 500dtex and a elongation ratio of 2.4 to 2.8 and eleven elastic elements each having a diameter in the range of 450 to 500dtex and an elongation ratio in the range of 1.8 to 2.4 where a dimension distance between adjacent elastic elements are in a range of 5.0 to 6.0mm, the elastic elements (36) associated with the lower area (32) of the main rear waist section (18) comprising five elastic elements each having a diameter in the range 450 to 500dtex and an elongation ratio in a range of 1.8 to 2.4 where a distance dimension between adjacent elastic elements is in a range of 5.0 to 7.0mm. (x) The elastic elements (37) associated with the buttock covering section (19) comprising four elastic elements each having a diameter in the range of 450 to 500dtex and an elongation ratio in the range of 1.8 to 2 , 6 where a distance dimension (R2) between the lowest elastic element (37) in the upper portion (19U) and the elastic element (37) allocated in the middle portion (19M), as well as a distance dimension (R3) between the elastic element (37) allocated in the middle portion 19M and the elastic element (37) allocated in the lower portion (19D) is in a range of 15.0 to 25.0mm where a distance dimension R4 between the elastic elements (37 ) allocated in a lower portion (19D) and a lower end of the second outer leaf (34) is in a range of 5.0 to 20.0mm.
    [00062] According to the configurations above (i) to (x), the advantageous effects established in (a) are more effectively guaranteed. Yet the advantageous effects of the respective configurations can be obtained as discussed in the respective reported descriptions.
    [00063] As used here, the terms "first" and "second" are merely used to distinguish between similar elements.
    [00064] Dimensions of garments according to one or more configurations of the present invention described here, should be appreciated to be measured in a stretch state using samples cut from fully prepared articles.
    权利要求:
    Claims (9)
    [0001]
    1 .- “DISPOSABLE CLOTHING ARTICLE” having a longitudinal direction (Y) a transverse direction (X), orthogonal to the said direction and comprising a front waist region (13), a rear waist region (14), a crotch region (15) which extends between said front and rear waist regions (13, 14), a waist opening (22) and a pair of leg openings (23), elastic waistband cushions (11) defining said front and rear waist regions (13, 14), and a liquid-absorbing structure (12) attached to the inner surface of said elastic waist pads to define a part of said crotch region (15), said rear waist region ( 14) comprises a rear main waist section (18) and a buttock covering section (19) having a rectangular shape located adjacent to said crotch region (15), said rear main waist section (18) is divided into one The upper area (31) located adjacent to said waist opening and a lower area (32) located adjacent to said crotch region (15), said front waist region (13) is divided into an upper area (24 ) located adjacent to said waist opening (22) and lower area (25) located adjacent to said crotch region (15), a tensile tension per unit of width dimension in said buttock covering section (19 ) is less than the tensile strength per unit of wide dimension in said lower area (32) of said main rear waist section (18) characterized by a tensile strength per unit of wide dimension in said lower area (25) said front waist region (13) being higher than a tensile stress per unit of width dimension in said lower area (32) of said rear main waist section (18).
    [0002]
    2 .- “DISPOSABLE CLOTHING ARTICLE” according to claim 1, characterized by the buttock covering section (19) being divided into an upper portion (19U) located adjacent to said main rear waist section (18) and a portion bottom (19D) located adjacent said crotch region (15) where a tensile stress per unit of wide dimension at least in said upper portion is less than the tensile stress per unit of wide dimension of said lower area of said main rear waist section (18).
    [0003]
    3 .- "DISPOSABLE CLOTHING ARTICLE" according to any one of the preceding claims characterized by said front waist region (13) including a plurality of elastic elements associated with it, willing to extend in said transverse direction and spaced from each other in the said longitudinal direction, and in that said waist rear region (14) includes a plurality of elastic elements associated therewith, willing to extend in said transverse direction and spaced from each other in said longitudinal direction, and also by said cover section buttocks (19) include a plurality of elastic elements (37) each in the form of a thread or a strip associated therewith, arranged to extend in said transverse direction and spaced apart in said longitudinal direction, and by a spacing between said elastic members associated with the buttock covering section (19) is greater than the spacing between the said elastic members associated with the front and rear waist regions (13, 14).
    [0004]
    4 .- “DISPOSABLE CLOTHING ARTICLE” according to claim 3, characterized by the elastic elements associated with said buttock covering section (19) being deactivated in a region occupied by said liquid-absorbent structure (12).
    [0005]
    5 .- “DISPOSABLE CLOTHING ARTICLE” according to claim 3 or 4, characterized by the buttock covering section (19) including between the said upper portion and the said lower portion, a middle portion (19M) provided without any of the elastic elements associated with it.
    [0006]
    6 .- “DISPOSABLE CLOTHING ARTICLE” according to any of the preceding claims, characterized by the article of clothing has a total diaper length (10) in the longitudinal direction (Y) in a range from 470 to 510mm, dimensions of lengths of front waist region (13) and the main rear waist section (18) in the longitudinal direction (Y) in a range of 95 to 125 mm and a length dimension of the buttock covering section (19) in the longitudinal direction (Y ) in a range of 45 to 65mm.
    [0007]
    7 .- “DISPOSABLE CLOTHING ARTICLE” according to any one of the preceding claims, characterized by the elastic elements (28) associated with the upper area (24) for the front waist region (13) comprising four elastic elements located in a proximity the waist opening each having a diameter in the range of 450 to 500dtex and an elongation ratio in the range of 2.4 to 2.8 and eleven elastic elements each having a diameter in the range of 450 to 500dtex and a proportion of elongation in a range of 1.8 to 2.4 where in each pair of adjacent elastic elements there is a spacing around 0.5 to 6.0 mm and the elastic elements (29) associated with the lower area 25 of the front waist region (13) comprising five elastic elements each having a diameter in a range of 450 to 500dtex and an elongation ratio in a range of 1.8 to 2.4 where each pair of adjacent elastic elements is spaced connected by a range of 5.0 to 6.0 mm and a distance dimension R1 between the lowest of the elastic elements (29) associated with a lower area (25) of the front waist region (13) and a lower end of the first outer sheet (27) is in a range of 5.0 to 20.0mm.
    [0008]
    8 .- "DISPOSABLE CLOTHING ARTICLE" according to any one of claims 1 to 6, characterized by the elastic elements (35) associated with the upper portion (31) of the main rear waist section (18) comprising five allocated elastic elements next to the waist opening each having a diameter in the range of 450 to 500dtex and an elongation ratio of 2.4 to 2.8 and eleven elastic elements each having a diameter in the range of 450 to 500dtex and a proportion of stretching in a range of 1.8 to 2.4 where a dimension distance between adjacent elastic elements is in a range of 5.0 to 6.0 mm, the elastic elements (36) associated with the lower area (32) of the main rear waist section (18) comprising five elastic elements each having a diameter in the range of 450 to 500dtex and an elongation ratio in a range of 1.8 to 2.4 where a dimension of distance between adjacent elastic elements is in a range of 5.0 to 7.0mm.
    [0009]
    9 .- “DISPOSABLE CLOTHING ARTICLE” according to claim 5, characterized by the elastic elements (37) associated with the buttock covering section (19) comprising four elastic elements each having a diameter in the range of 450 to 500dtex and an elongation ratio in a range of 1.8 to 2.6 where a distance dimension (R2) between the lowest elastic element (37) in the upper portion (19U) and the elastic element (37) allocated in the middle portion (19M), as well as a distance dimension (R3) between the elastic element (37) allocated in the middle portion 19M and the elastic element (37) allocated in the lower portion (19D) is in a range of 15.0 to 25 , 0mm where a distance dimension R4 between the elastic elements (37) allocated in a lower portion (19D) and a lower end of the second outer sheet (34) is in a range of 5.0 to 20.0 mm.
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    同族专利:
    公开号 | 公开日
    CN101803977B|2015-03-25|
    BR112012012622A2|2016-07-12|
    AU2010323965B2|2015-06-25|
    EA201290177A1|2013-01-30|
    JP2011115229A|2011-06-16|
    AU2010323965A1|2012-06-07|
    JP5695315B2|2015-04-01|
    TW201130469A|2011-09-16|
    EA023354B1|2016-05-31|
    EP2506817A1|2012-10-10|
    MY168351A|2018-10-31|
    CN101803977A|2010-08-18|
    EP2506817B1|2016-05-25|
    US20120226254A1|2012-09-06|
    AU2010323965C1|2015-09-17|
    TWI519282B|2016-02-01|
    EP2506817A4|2014-01-08|
    WO2011064995A1|2011-06-03|
    US8945081B2|2015-02-03|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-07-23| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2019-12-03| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2020-04-07| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-08-04| B09A| Decision: intention to grant|
    2020-10-06| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/11/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2009272889A|JP5695315B2|2009-11-30|2009-11-30|Disposable wearing items|
    JP2009-272889|2009-11-30|
    PCT/JP2010/006865|WO2011064995A1|2009-11-30|2010-11-25|Disposable wearing article|
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