• 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:
    The present invention relates to a method and apparatus for producing a panty-type disposable absorbent garment (2) having a unitary elastic side panel, thereby providing a garment (2) manufactured. The monolithic side panels 6, 8 improve the aesthetic appearance of the garment 2 by eliminating the additional costs associated with several pieces of side panels and eliminating the side seams. The method and apparatus of the present invention provide a garment chassis having an unfinished side edge, folding the chassis to overlap the front and back portions, and folding and bonding the side panels of the unit to face the garment chassis. Perform the step of engaging in the side edge.
    公开号:KR20020040660A
    申请号:KR1020017013041
    申请日:2000-04-11
    公开日:2002-05-30
    发明作者:데이비드 아더 쿠엔；존 어빈 반듀어젠
    申请人:로날드 디. 맥크레이；킴벌리-클라크 월드와이드, 인크.；
    IPC主号:
    专利说明:

    Process for Making Absorbent Articles with Single-Piece Side Panels
    [2] Disposable absorbent garments in the form of panties are used in infant training panties, adult incontinence panties, diapers, swimwear and the like. Referring to FIG. 1, the prior art panty absorbent garment 2 has two side portions defining an emission receiving zone (“chassis”) 4 and a waist opening 10 and a pair of leg openings 12 and 14. (6 and 8) are included. The side panel 6 includes stretchable panels 18 and 20 joined with seams 30. The side panel 8 includes stretchable panels 24 and 26 joined with seams 32. The seams 30 and 32 extend longitudinally from the waist opening 10 of the garment 2 to the leg openings 12 and 14.
    [3] The discharge receiving zone 4 comprises front and rear portions 5 and 7, and a central (“crotch”) region 15. The chassis 4 includes, for example, multiple layers (not shown) comprising a liquid permeable top layer, an absorbent core layer, and a liquid impermeable outer cover layer 16 remote from the wearer. The discharge receiving zone 4 also includes a waist 22 elasticized on the front and back of the garment. In addition, the leg openings 12 and 14 include elastics 46 that extend around the leg openings that are substantially defined by the discharge receiving zone 4.
    [4] In addition, all leg openings of the disposable garment include a guard to help suppress lateral leakage of the discharge through the leg opening. Leakage protection is typically provided by an elasticized flap portion 50 connected to the interior of the garment along the bottom of each leg opening. In use, the elasticized flap portion 50 fits comfortably to the wearer and effectively blocks most of the effluent flowing out of the leg openings.
    [5] Stretchable side panels 6 and 8 with two or more seamlessly joined portions per panel are used in conventional manufacturing methods. In a conventional method, the absorbent garment is first made into a flat monolith, then folded and joined at the side seams 30 and 32. The disposable absorbent garment industry is a cost-competitive industry, and the lateral seams represent typical materials and processes that are not essential to the finished product. In terms of cost, there is a need for a low cost method of making disposable absorbent garments that have a monolithic elastic side panel and thus exclude side seams.
    [1] The present invention relates to a method and apparatus for making a panty-type disposable absorbent garment having a unitary elastic side panel, and an absorbent article made thereby. The method of the present invention eliminates the additional costs and materials needed to produce similar absorbent articles having seamlessly joined pieces of side panels.
    [14] 1 is a perspective view of a panty-type disposable absorbent article of the prior art.
    [15] 2 is a perspective view of a disposable absorbent article of the present invention.
    [16] 3 is a perspective view of another embodiment of a disposable absorbent article of the present invention.
    [17] 4 is a schematic representation of an apparatus and method for making a disposable absorbent article of the present invention.
    [18] 5 (a) and 5 (b) illustrate the disposable absorbent garment of the present invention in which the side panels are positioned at different angles with respect to the waistline of the chassis.
    [19] DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION
    [20] A device for producing a disposable absorbent garment having a monolithic side panel and a corresponding method is shown in FIG. 4. The apparatus 100 includes a conveyor 102 that moves at a speed "v" in the direction of travel indicated by the arrow. A plurality of chassis 4 of the disposable absorbent garment is located on the conveyor and spaced apart from each other by a constant center to center distance "d" in the direction of movement. Each chassis 4 is folded along a central region 15 corresponding to the crotch region of the garment, so that the front portion 5 or rear portion 7 of the chassis enters underneath the other portion and faces the conveyor 102 while the other The front or rear part faces away from the conveyor 102 as shown in FIG. The conveyor 102 is narrower than the chassis 4 so that the edges 9 and 11 of each chassis 4 span over the edges 101 and 103 of the conveyor. Conveyor 102 preferably consists of a porous net or other porous material so that a controlled vacuum source (not shown) can be used underneath the conveyor to allow the chassis to remain on the conveyor.
    [21] Each folded chassis 4 has a first side edge 9 and a second side edge 11 that are substantially aligned parallel to the direction of movement of the conveyor 102. The plurality of terms "first side edge 9" and "second side edge 11" mean that when each chassis 4 is folded as shown in FIG. 4, the chassis has a first edge 9 and a second edge 11. ), Having a visible top (front or back) (5 or 7), also having a first edge 9 and a second edge 11 and having the same or similar size and shape folded under the top Reflects the fact that it has a bottom (front or back). Disposable garments of the present invention may in fact be symmetrical or slightly different in width in the front and back of the central region 15. When folded through the central region 15, the first side edge 9 of the front part 5 is close to (virtually aligned or slightly offset against) the first side edge 9 of the rear part 7. , The second side edge 11 of the front part 5 is close to (in fact aligned or slightly offset) the second side edge 11 of the rear part 7.
    [22] The device 100 includes two side panel applicators 110 and 130 located along the sides 101 and 103 of the conveyor. The first side panel applicator 110 includes a side panel pickup 112, an adhesive applicator 114, a fold 116 and a closure 118. The four arms 112, 114, 116, and 118 described above are angled at 90 degrees apart from each other on a rotatable (preferably cylindrical) housing 120 operated by a stationary cam 122 and a rotation axis 124. Is located. The housing 120 is the center to center of the chassis between which the center-to-center (90 degree) peripheral distance between each of the four stands defined as 2πr / 4 (“r” is the radius of the housing) is defined on the conveyor 102. Same as the distance "d". In addition, the housing 120 rotates in the counterclockwise direction indicated by the arrow so that its peripheral speed (linear speed) is equal to the speed of the conveyor 102.
    [23] The housing 120 includes an internal vacuum chamber capable of applying a vacuum to the porous hinged vacuum plate 113 as the housing rotates. Each collapsible plate is extendable and retractable and spring-loaded tightening bar 115, whose axial position of the bar is moved by the stationary cam 122 as the housing 120 rotates about the drive shaft 124. Can move between the open and closed portions. In the first stand 112, the tightening bar 115 contracts and the perforated plate 113 is fully open. The porous plate 113 is vacuumed to pick up and engage the elastic side panel 8, which is suitably oriented from a source (not shown).
    [24] As the housing 120 rotates, the plate 113 holding the elastic side panel 8 passes through a second stage 114, where the side panel 8 is used, for example using a spray nozzle 117. An adhesive is applied along the upper and lower edges of the substrate. A wide variety of conventional adhesives (described in detail below) can be used. For example, different adhesive application methods such as roller printing or brush application may be used.
    [25] As the housing 120 continues to rotate, the plate 113 holding the panel 8 passes through a third stage 116, using mechanical interlocks that can open and close the plate 113. Partial and further folding of the plate 113 and side panel 8 is thereby effectively achieved. In this position, the stationary cam 122 presses against the spring-loaded tightening bar 115, thereby achieving further extension of the tightening bar 115 and folding of the plate 113. This further folding action continues to the fourth stage 118, at which point the tightening bar 115 is fully extended by the cam 122, which causes the vacuum plate 113 to be substantially closed, thereby allowing the side panels 8 to be closed. The edges of are overlapped and screwed onto the first edge 9 of the chassis 4. When the tightening is complete, the vacuum that holds the side panel to the porous vacuum plate 115 is removed. This can be done, for example, with an air valve that is electronically or mechanically controlled. As the final absorbent garment 2 is transported away from the panel applicator, the adhesive keeps the edges and chassis of the side panels together.
    [26] The second panel applicator 130, located along the conveyor on the opposite side of the panel applicator 110, has a housing 140 in a clockwise direction (ie, opposite the direction of rotation of the housing 120 of the first panel applicator 110). Works the same way except that it rotates. The second side panel applicator 130 includes a side panel pickup 132, an adhesive applicator 134, a fold 136 and a closure 138. As shown the four arms 132, 134, 136 and 138 are spaced 90 degrees apart from each other on a rotatable (preferably cylindrical) housing 140 operated by a fixed cam 142 and a rotating shaft 144. Located at an angle. The housing 140 has a center to center between the center to center (90 degrees) distance between the four respective stands defined as 2πr / 4 ("r" is the radius of the housing) and the chassis on which the chassis is continuous on the conveyor 102. Same as the distance "d". The housing 140 also rotates clockwise as indicated by the arrow so that its peripheral speed (linear speed) is equal to the speed of the conveyor 102.
    [27] The housing 140 includes an internal vacuum chamber capable of applying a vacuum to the porous hinged vacuum plate 133 as the housing rotates. Each collapsible plate is extendable and retractable and spring-loaded tightening bar 135, whose axial position of the bar is moved by the stationary cam 142 as the housing 120 rotates about the drive shaft 124. Can move between the open and closed portions. In the first stage 132, the porous plate 133 is completely opened. A vacuum is applied to the porous plate 133 to pick up and engage the elastic side panel 6 properly oriented from a source (not shown).
    [28] As the housing 140 rotates, the plate 133 holding the elastic side panel 6 passes through a second stage 134, where an adhesive is applied along the upper and lower edges of the side panel 6. (Using nozzle 137 or other suitable device). As the housing 140 continues to rotate, the plate 133 holding the panel 6 passes through a third (fold) stand 136, where a mechanical interlock can open and close the plate 133. Partial and further folding of the plate 133 and the side panel 6 is achieved using the device. In this position, the stationary cam 142 presses against the spring-loaded tightening bar 135, thereby achieving extension of the tightening bar 135 and folding of the plate 133. Further folding action continues to the fourth stage 138, which is the point at which the tightening bar 135 is fully extended by the cam 142, which causes the vacuum plate 133 to be substantially closed, thereby allowing the side panels 6 to The edges overlap and are tightened on the second edge 11 of the chassis 4. As the housing 140 continues to rotate past the fourth stage 138, the vacuum is removed to release the tightened side panels. The porous plate 133 opens again due to the narrowing of the cam 142 and the relaxation of the force on its tightening bar 135. Subsequently, the vacuum plate 133 is again vacuumed to receive the next side panel at the base 132.
    [29] It is also within the scope of the present invention to use other bonding techniques including, for example, heat sealing, ultrasonic bonding, heat or thread stitch bonding, and the like. Some of these techniques require additional processes and equipment, and preliminary adhesive bonding can be used to hold the side panels in the chassis prior to and during further bonding. The invention encompasses all methods in which the edges of the seamless side panels are folded and joined to the edges of the folded chassis.
    [30] The scope of the present invention also includes the use of one or more pairs of rotatable panel applicators along the conveyor, ie two or more pairs of panel applicators 110 and 130 along the length of the conveyor 102 of FIG. 4. This allows for faster overall production rates and / or slower and more adjustable speeds for each pair. If two pairs of panel applicators are used, each pair will give the chassis a side panel one time two times. If three pairs of panel applicators are used, each pair will give the chassis a side panel once in three times, and so on in other cases.
    [31] Also within the scope of the present invention is to orient the rotatable panel applicator at a constant angle relative to the conveyor such that the side panels (ie edges of the side panels) are given at different angles relative to the chassis. In the embodiment shown in FIG. 4, the rotatable panel applicator is arranged to impart the side panels at an angle of 90 degrees with respect to the chassis (ie with respect to the direction of movement of the chassis). By slightly modifying a portion of the rotatable panel applicator, the side panels are at different angles, for example about 90 to 135 degrees, preferably about 90 to 125 degrees, more preferably about about the waist line 47 of the chassis. It can be given at different angles of 90 to 115 degrees. When the absorbent garment of FIG. 2 is modified to include a angular attachment, the width of the side panels between the attachment seams will effectively narrow toward the wearer's waist. This angular attachment assists the garment to remain in the wearer's wearing position to fit more comfortably at the waist.
    [32] 5 (a) and 5 (b) show an embodiment of the absorbent garment 2 in which the edges of the side panels 6 and 8 are positioned at different angles with respect to the waistline 47 on the chassis 2. . In Fig. 5 (a), the side panels 6 and 8 are positioned at an angle of 90 degrees with respect to the waist line. In FIG. 5 (b), the side panels 6 and 8 are located at an angle of 96 degrees with respect to the waistline. An angle greater than 90 degrees means that the end of each side panel closest to the waistline will be placed inward so that the unstretched garment will narrow toward the waistline.
    [33] The product of the present invention is a disposable absorbent garment having a monolithic, seamless elastic side panel. With reference to FIG. 2, the disposable absorbent garment includes a chassis 4 and two elastic side panels 6 and 8 defining a waist opening 10 and leg openings 12 and 14. Chassis 4 includes integral front and rear portions 5 and 7 and a central region 15, which may be conventional multilayer structures and may be manufactured using conventional techniques prior to bonding to the side panels. . Conventional chassis include a liquid permeable top layer acting as a bodyside liner, a liquid permeable surge layer beneath the top layer, an absorbent material layer beneath the surge layer, and a liquid impermeable exterior to prevent leakage from the garment during wear. A cover (eg, layer 16 of FIG. 2) may be included. Outer cover 16 may include one or more layers that provide a garment with a tactile feel, such as texture and cloth, such as a layer of liquid impermeable polyolefin film and a layer of polymeric nonwoven filament. The layers of chassis 4 can be joined together using adhesives, heat seals, ultrasonic bonding, sealing bonding, and other conventional techniques.
    [34] The outer cover 16 may consist of a wide variety of woven or nonwoven materials, films, or film coated nonwoven materials, including cast or blown films of, for example, polyethylene, polypropylene, polyester, or blends thereof. The outer cover 16 may also be a composite of bonded carded or spunbonded or meltblown materials, for example spunbonded-meltble of thermoplastic or spunbonded-meltblown-spunbonded thermoplastics. It may be a new composite, wherein the spunbonded layer may provide a cloth-like texture and the meltblown layer may provide liquid impermeability. Materials that may be made of the outer cover 16 include nonwovens having a high basis weight, such as at least 13.69 g per square meter (about 0.4 ounces per square yard). The outer cover 16 may also include extruded films of polyolefin polymers or copolymers, or other thermoplastics. Typically the outer cover 16 has a length of about 300 mm (12 inches) to about 760 mm (30 inches), and a width of about 75 mm (3 inches) to about 500 mm (20 inches), depending on the size of the garment Will have
    [35] The absorbent layer may consist of wood pulp fluff or a mixture of wood pulp fluff and superabsorbent material, or wood pulp fluff integrated with a thermoplastic absorbent material treated with a surfactant. Heat binders such as Pulpex® can be used in blends or laminated with fluff and superabsorbents. The absorbent layer can also be a batt of meltblown synthetic fibers, a bonded carded web of synthetic or natural fibers or blends thereof, a composite of meltblown fibers, and the like. Synthetic fibers can be, but are not limited to, polypropylene, polyethylene, polyester and copolymers of these or other polyolefins.
    [36] The term "superabsorbent" or "superabsorbent material" means water swellability capable of absorbing at least about 20 times, more preferably at least about 30 times, its own weight in an aqueous solution containing 0.9 wt. It means a water insoluble organic or inorganic material. Superabsorbent materials can be natural, synthetic, and modified natural polymers and materials. The superabsorbent material may also be an inorganic material such as silica gel, or an organic compound such as a crosslinked polymer. The term "crosslinking" means any means for effectively converting a general water soluble material into a substantially water insoluble but water swellable material. Such means may include, for example, physical entanglement, crystalline domains, covalent bonds, ionic complexes and associations, hydrophilic associations such as hydrogen bonds, and hydrophobic associations or van der Waals forces.
    [37] Examples of synthetic superabsorbent polymers include the alkali metal and ammonium salts of poly (acrylic acid) and poly (methacrylic acid), maleic anhydrides with poly (acrylamide), poly (vinyl ether), vinyl ethers and alpha-olefins. Copolymers, poly (vinyl pyrrolidone), poly (vinylmorpholinone), poly (vinyl alcohol), and mixtures thereof and copolymers thereof. Superabsorbent materials also include natural and modified natural polymers such as hydrolyzed acrylonitrile graft starch, acrylic acid graft starch, methyl cellulose, chitosan, carboxymethyl cellulose, hydroxypropyl cellulose, and alginates, xanthan gum Natural gums such as locust bean gum and the like. Mixtures of natural superabsorbent polymers and synthetic superabsorbent polymers in whole or in part may also be useful in the present invention. Other suitable absorbent gelling materials are disclosed in US Pat. No. 3,901,236 to Assarsson, issued August 26, 1975. Methods for the preparation of synthetic absorbent gelling polymers are described in US Pat. No. 4,076,663 to Masuda et al., Issued February 28, 1978, and US Pat. No. 4,286,082 to Tsubakimoto, issued August 25, 1981. It is disclosed in the call.
    [38] Both the surge layer and the bodyside liner are made of a highly liquid permeable material. These layers serve to transfer liquid from the wearer to the absorber layer. Suitable materials include porous woven materials, porous nonwoven materials, and perforated films. Examples include any flexible porous sheet of polyolefin fibers such as polypropylene, polyethylene or polyester fibers; Webs of spunbonded polypropylene, polyethylene or polyester fibers; Web of rayon fibers; Bonded carded webs of synthetic or natural fibers; Or mixtures thereof, but is not limited to these. In addition, each layer may be a perforated plastic film. The various layers of the chassis 4 vary in size depending on the size and shape of the wearer.
    [39] The stretchable side panels 6 and 8 can be made of conventional woven or nonwoven materials of a wide variety of elastic and stretchable polymers. The terms "elastic" and "extensible" include all materials that can be stretched and, upon relaxation, tend to return to their original form. Suitable polymers include block copolymers of polystyrene, polyisoprene and polybutadiene; Copolymers of ethylene, natural rubber and urethane; And mixtures of the foregoing. Particularly suitable are styrene-butadiene block copolymers commercially available from Shell Chemical Company under the trade name KRATON®. Other suitable polymers include, but are not limited to, ethylene vinyl acetate, ethylene methyl acrylate, ethylene ethyl acrylate, ethylene acrylic acid, copolymers of ethylene including stretchable ethylene-propylene copolymers, and mixtures thereof. Also suitable are coextruded composites of those described above, and elastomeric staple integrated composites in which staple fibers of polypropylene, polyester, cotton and other materials are integrated into an elastomeric meltblown web. In addition, certain elastomeric single site or metallocene catalyzed olefin polymers and copolymers are also suitable for the side panels.
    [40] The elastic side panels 6 and 8 can be attached to the chassis 4 using a wide variety of conventional adhesives. Suitable adhesives include hot melt adhesives, spray adhesives, self-adhesive elastomeric materials, and the like. As discussed above, the bond between the chassis and the overlapping edges of the side panels can be augmented using thermal bonding, ultrasonic bonding, sealing bonding, and the like.
    [41] In order to prevent leakage from leg openings during wearing, the absorbent garment of the present invention may be provided with a leak prevention portion. 2 and 3 (similar members denoted by the same reference numerals) show leak prevention portions of two different embodiments. In the garment of FIG. 2, conventional leg openings 12 and 14 have elastic bands 46 attached around their edges. To prevent leakage from the leg openings, an elastic flap 50 is attached at the seam 52 to the inside of the chassis 4 around the lower portion of the leg openings. In the garment of FIG. 3, the individually attached elastic flaps are removed. Instead, a leaktight portion 54 is provided by extending the outer cover 16 substantially beyond the inner absorbent layer so that a bag is formed between the absorbent layer and the leg openings. Each leak guard 54 is provided with one or more elastic bands 19 aligned along its edges to hold the leak guard in a vertical position during wearing of the garment and effectively seal around the leg.
    [42] Elastic bands 46 and 19 may be in the form of single or multiple bands per leg. A wide variety of elastic materials can be used. Examples include films or meltblown webs formed using blocks or graft copolymers of butadiene, isoprene, styrene, ethylene-methyl acrylate, ethylene-vinyl acetate, ethylene-ethyl acrylate or blends thereof. One of the preferred elastomers is styrene-ethylbutadiene-styrene block copolymer. Specific materials that can be made of the elastic band 19 are the KRATON G series of Shell Chemical Company, for example KRATON G-1650, KRATON G-1652, KRATON GX-1657 and preferably KRATON G- 2740X. In addition, Kraton D series and polyester elastomeric materials, polyurethane elastomeric materials and polyamide elastomeric materials can be used. In addition, elastomeric single site or metallocene catalyzed olefin polymers and copolymers may be used. In addition, the elastic bands 46 and 19 are imparted in an unextended state and may be made of an activatable material that is activated by heat, light, moisture or radiation to cause shrinkage and elasticity. The activatable elastic material can be obtained from 3M Company. Elastic bands 46 and 19 may be attached inwardly from or at the edge of the chassis at the leg opening using various conventional techniques, including adhesive bonding, thermal bonding, ultrasonic bonding, sealing bonding, and the like.
    [43] Referring again to FIGS. 2 and 3, the chassis 4 may also have an elastic waist portion 22 at the front and back of the garment. The elasticized waist portion 22 may be formed of single or multiple bands, may be made of the same or different materials as the elastic bands 46 and 19, and may be attached using the same or similar conventional techniques.
    [44] The products of the present invention are panty-type disposable absorbent garments that are suitably sized and can be used as diapers, swimwear, infant training panties, adult incontinence panties or similar panty absorbent garments. Seamless elastic side panels facilitate the reduction of manufacturing costs and the improvement of aesthetic appearance.
    [45] While embodiments of the invention described herein have been shown to be presently preferred, various modifications and improvements can be made without departing from the spirit and scope of the invention. It is intended that the scope of the invention be defined by the claims appended hereto, including all changes that come within the meaning and range of equivalency.
    [6] Summary of the Invention
    [7] The present invention relates to a method and apparatus for making a side absorbent disposable absorbent garment and a product having a seamless monolithic elastic side panel. The terms "elastic" and "extensible" include all materials that can be stretched and tend to return to their original form when relaxed. The method of the present invention includes using a conventional technique to manufacture the discharge receiving zone (or "chassis") of the absorbent article, and folding the chassis such that the front and rear portions of the chassis overlap. The term "sash" means an absorbent article that is essentially free of side panels. The folded chassis is conveyed along the conveyor in the machine direction with its unfinished edges substantially aligned in the direction of travel.
    [8] As the chassis advances, the monolithic side panels on both sides of the conveyor are aligned, glued and partially folded along two opposing edges. As the chassis passes through the position where the side panels are machined, the partially folded side panels are fully folded at the edges of the chassis such that the edges of the side panels are joined with the overlapping edges of the chassis by an adhesive. Similar results can be achieved by using thermal bonding, ultrasonic bonding or other suitable bonding techniques.
    [9] The device of the present invention includes a rotary cam device having four stations and an internal vacuum chamber. As the cam device rotates, the side panels pass through each of the four stands. The first stage picks up a suitably oriented side panel using a vacuum plate. The second stage applies an adhesive to the edge of the side panel. The third stage begins to fold the side panels, and the fourth stage closes the side panels over the edges of the chassis. The peripheral speed of the cam device is equal to the linear speed of the chassis and the peripheral distance between each of the four stands is equal to the linear distance between successive chassis on the conveyor. Two rotary cam devices similar but moving in opposite directions are located on both sides of the conveyor so that both side panels can be used in this way.
    [10] The product of the present invention is an absorbent garment similar to that described above except that the extensible side panels each consist of a single piece and are free of side seams.
    [11] According to the above, it is a feature and advantage of the present invention to provide a low cost method of using a monolithic elastic side panel in a disposable panty absorbent garment.
    [12] It is also a feature and advantage of the present invention to provide a simple device for achieving this result.
    [13] It is also a feature and advantage of the present invention to provide a relatively low cost disposable absorbent article that has a monolithic side panel, lower manufacturing cost, and a better appearance and that fits better than similar articles having several pieces of side panels.
    权利要求:
    Claims (39)
    [1" claim-type="Currently amended] Providing a garment chassis having a front portion, a rear portion, a central region between the front portion and the rear portion, and first and second side edges on each of the front portion and the rear portion,
    The garment chassis is folded in the central area such that the front and rear portions are located adjacent to each other, the first side edge of the front portion is close to the first side edge of the rear portion, and the second side edge of the front portion is close to the second side edge of the rear portion. step,
    Positioning the first side panel adjacent the first side edge of the front and rear portions,
    Positioning the second side panel adjacent the second side edges of the front and rear portions, and
    The first and second sides such that opposite edges of the first side panel overlap the first side edges of the front and rear portions, and opposite edges of the second side panel overlap the second side edges of the front and rear portions; Folding panel
    A method of manufacturing a panty absorbent garment having a unitary side panel comprising a.
    [2" claim-type="Currently amended] The method of claim 1, further comprising applying an adhesive to opposite edges of the first side panel and opposite edges of the second side panel.
    [3" claim-type="Currently amended] The method of claim 2 wherein the adhesive is applied prior to folding the first and second side panels.
    [4" claim-type="Currently amended] The method of claim 1, further comprising adhesively bonding the first and second side panels to the chassis.
    [5" claim-type="Currently amended] The method of claim 1, further comprising heat bonding the first and second side panels to the chassis.
    [6" claim-type="Currently amended] The method of claim 1, further comprising ultrasonically bonding the first and second side panels to the chassis.
    [7" claim-type="Currently amended] The method of claim 1, further comprising stitch bonding the first and second side panels to the chassis.
    [8" claim-type="Currently amended] The method of claim 1, further comprising transferring the plurality of chassis along the continuous conveyor in the direction of movement with the first and second side edges of the front and rear portions substantially aligned in the direction of movement.
    [9" claim-type="Currently amended] 9. The method of claim 8, further comprising: imparting a first side panel to the plurality of chassis using a first panel applicator located on the first side of the conveyor, and using a second panel applicator located on the second side of the conveyor. And imparting a second side panel to the plurality of chassis.
    [10" claim-type="Currently amended] The method of claim 9, wherein the first and second panel applicators comprise a rotary conveyor.
    [11" claim-type="Currently amended] The method of claim 1, wherein the side panels of each side panel have an angle of about 90 to 135 degrees relative to the chassis.
    [12" claim-type="Currently amended] The method of claim 1, wherein the side panels of each side panel are folded at an angle of about 100 to 125 degrees relative to the chassis.
    [13" claim-type="Currently amended] Disposable panty absorbent garment made according to the method of claim 1.
    [14" claim-type="Currently amended] A chassis comprising at least a liquid permeable bodyside liner, an absorbent layer and a substantially liquid impermeable outer cover,
    A first seamless unitary side panel coupling the first edge of the chassis front end to the first edge of the chassis rear end, and
    A second seamless monolithic side panel that joins the second edge of the chassis front edge to the second edge of the chassis rear edge
    Disposable absorbent garment comprising a.
    [15" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second seamless side panels comprise an elastic material.
    [16" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the chassis and seamless side panels define a waist opening and first and second leg openings.
    [17" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second side panels are bonded to the chassis using an adhesive.
    [18" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second side panels are joined to the chassis by heat sealing.
    [19" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second side panels are bonded to the chassis using ultrasonic bonding.
    [20" claim-type="Currently amended] The disposable absorbent garment of claim 14, wherein the edges of the first and second side panels have an angle of about 90 to 135 degrees with respect to the waistline of the chassis.
    [21" claim-type="Currently amended] 21. The absorbent garment of claim 20 wherein said angle is about 90 to 115 degrees.
    [22" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second side panels are bonded to the chassis using a heat sealing bond.
    [23" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the first and second side panels are attached to the chassis using a thread closure bond.
    [24" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the disposable absorbent garment is a diaper.
    [25" claim-type="Currently amended] 15. The disposable absorbent garment of claim 14 wherein the disposable absorbent garment is an infant training pant.
    [26" claim-type="Currently amended] The disposable absorbent garment of claim 14, wherein the disposable absorbent garment is an adult incontinence garment.
    [27" claim-type="Currently amended] The disposable absorbent garment of claim 14, wherein the disposable absorbent garment is a swimsuit.
    [28" claim-type="Currently amended] A conveyor movable in the direction of travel,
    A first rotatable panel applicator on the first side of the conveyor movable in the counterclockwise direction, and
    Second rotatable panel applicator on a second side of the clockwise movable conveyor
    Apparatus for manufacturing a panty absorbent garment having a unitary side panel comprising a.
    [29" claim-type="Currently amended] The apparatus of claim 28 further comprising an adjustable vacuum source for each rotatable panel applicator.
    [30" claim-type="Currently amended] 29. The apparatus of claim 28, wherein each rotatable panel applicator comprises a plurality of collapsible perforated plates about their periphery.
    [31" claim-type="Currently amended] 31. The apparatus of claim 30, wherein each rotatable panel applicator comprises four perforated plates.
    [32" claim-type="Currently amended] 31. The apparatus of claim 30, wherein each rotatable panel applicator includes a mechanical linkage to open and close each collapsible porous plate.
    [33" claim-type="Currently amended] 33. The apparatus of claim 32, wherein each rotatable panel applicator further comprises a stationary cam capable of extending and retracting the tightening rods during rotation of the panel applicator.
    [34" claim-type="Currently amended] 29. The apparatus of claim 28, wherein each rotatable panel applicator further comprises a panel pickup.
    [35" claim-type="Currently amended] The apparatus of claim 28, wherein each rotatable panel applicator further comprises an adhesive applicator.
    [36" claim-type="Currently amended] 35. The apparatus of claim 34, wherein each rotatable panel applicator further comprises an adhesive applicator.
    [37" claim-type="Currently amended] The apparatus of claim 28, wherein each rotatable panel applicator further comprises one or more panel folds.
    [38" claim-type="Currently amended] 35. The apparatus of claim 34, wherein each rotatable panel applicator further comprises one or more panel folds.
    [39" claim-type="Currently amended] The apparatus of claim 28 further comprising one or more additional rotatable panel applicators on each side of the conveyor.
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    同族专利:
    公开号 | 公开日
    DE10084456T0|
    US20020058918A1|2002-05-16|
    US6830566B2|2004-12-14|
    GB0125512D0|2001-12-12|
    MXPA01010308A|2002-03-27|
    WO2000061049A1|2000-10-19|
    GB2363563A|2002-01-02|
    DE10084456T1|2002-03-21|
    GB2363563B|2003-09-03|
    AU4227700A|2000-11-14|
    US6352607B1|2002-03-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-04-13|Priority to US09/290,953
    1999-04-13|Priority to US09/290,953
    2000-04-11|Application filed by 로날드 디. 맥크레이, 킴벌리-클라크 월드와이드, 인크.
    2000-04-11|Priority to PCT/US2000/009601
    2002-05-30|Publication of KR20020040660A
    优先权:
    申请号 | 申请日 | 专利标题
    US09/290,953|1999-04-13|
    US09/290,953|US6352607B1|1999-04-13|1999-04-13|Process for making absorbent articles with single-piece panels|
    PCT/US2000/009601|WO2000061049A1|1999-04-13|2000-04-11|Process for making absorbent articles with single-piece side panels|
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