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1.发明申请公开(公告)号：US20200170845A1
公开(公告)日：2020-06-04
申请号：US16630750
申请日：2018-08-01
Applicant: ZUIKO CORPORATION
Inventor： Hideyuki NAKAMURA , Yukihiko FUJITA , Miwa KOSHIJIMA
IPC: A61F13/15 , A61F13/539
Abstract: The liquid permeability and liquid diffusion of absorbent body is enhanced. (i) A belt-like main sheet formed of a non-woven fabric sheet constituting at least part of a first main surface is conveyed in a longitudinal direction of the main sheet; (ii) a slit is formed in the non-woven fabric sheet at a first position on a conveying path; (iii) at a second position, particulate matter absorbing and retaining liquid is dispersed into the first main surface, in such a way that the particulate matter is held in the non-woven fabric sheet; and (iv) at a third position, a covering sheet which prevents passage of the particulate matter is overlaid on the first main surface. At the second position, the non-woven fabric sheet includes a bulky structure which constitutes at least part of the first main surface and which has voids allowing the particulate matter to enter.
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2.发明申请公开(公告)号：US20190224053A1
公开(公告)日：2019-07-25
申请号：US16330081
申请日：2017-09-07
Applicant: ZUIKO CORPORATION
Inventor： Hideyuki NAKAMURA , Miwa KOSHIJIMA
Abstract: A stretchable sheet 10 includes: a plurality of attached portions 3 spaced apart from each other in the direction of stretch Df, wherein the first surfaces 1f and 2f of a pair of sheets 1 and 2 are attached to each other by being welded without using an adhesive, at the attached portions 3, the attached portions 3 hold elastic members F, and the attached portions 3 extend in a direction Dp crossing the direction of stretch Df of the elastic members F; and a plurality of folds P that appear between the attached portions 3 while the elastic members F are shrunk, wherein a width W3 of the attached portions 3 in the direction of stretch Df is set to be 0.2 mm or more and less than 1.0 mm.
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3.发明申请公开(公告)号：US20190209396A1
公开(公告)日：2019-07-11
申请号：US16330082
申请日：2017-09-11
Applicant: ZUIKO CORPORATION
Inventor： Hideyuki NAKAMURA , Miwa KOSHIJIMA
CPC classification number: A61F13/49012 , A61F13/15 , A61F13/15764 , A61F13/49 , A61F2013/15869 , A61F2013/49025
Abstract: A stretchable sheet 10 includes: a plurality of attached portions 3 spaced apart from each other in the direction of stretch Df, wherein the first surfaces 1f and 2f of a pair of sheets 1 and 2 are attached to each other by being welded without using an adhesive, at the attached portions 3, the attached portions 3 hold elastic members F, and the attached portions 3 extend in a direction Dp crossing the direction of stretch Df of the elastic members F; and a plurality of folds P that appear between the attached portions 3 while the elastic members F are shrunk, wherein the attached portions 3 include: a plurality of strongly-attached portions 3s arranged on opposite sides of each elastic member F in the crossing direction Dp; and a plurality of weakly-attached portions 3w arranged between adjacent elastic members F and between adjacent strongly-attached portions 3s.
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公开(公告)号：US20240336047A1
公开(公告)日：2024-10-10
申请号：US18724082
申请日：2022-12-12
Applicant: ZUIKO CORPORATION
Inventor： Miwa KOSHIJIMA
CPC classification number: B32B27/12 , A61F13/49011 , A61F13/4902 , B32B3/30 , B32B5/022 , B32B7/02 , B32B7/05 , A61F2013/49022 , B32B2260/021 , B32B2260/046 , B32B2274/00 , B32B2307/516 , B32B2307/7376
Abstract: A laminate in which a thermoplastic elastomer film having greater stretchability in a stretch direction than in a width direction orthogonal to the stretch direction and nonwoven fabric sheets are laminated to each other, wherein the elastomer film and the sheets are laminated by being heat fused to each other at bonded portions intermittently arranged in the width direction and the stretch direction, and the sum of lengths of the bonded portions in the width direction in at least one side edge portion in the width direction per unit area of the laminate in that side edge portion is greater than the sum of lengths of the bonded portions in the width direction in a non-side edge portion in the width direction per unit area of the laminate in that non-side edge portion.
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公开(公告)号：US20220218534A1
公开(公告)日：2022-07-14
申请号：US17610209
申请日：2020-04-07
Applicant: ZUIKO CORPORATION
Inventor： Asuka MINAMI , Miwa KOSHIJIMA
Abstract: Provided is a manufacturing apparatus for manufacturing a composite stretchable member capable of improving a function of preventing cutting by reducing a defect in which an elastic member is detached from a groove of a conveying roller. The manufacturing apparatus includes a guide device that guides the two sheets and the elastic members to a bonding device. The guide device includes a guide member that guides the elastic members to respective multiple grooves on an outer peripheral surface of a conveying roller of the bonding device. The guide member is provided at its leading end with multiple guide grooves for holding the corresponding elastic members. The guide member is disposed to allow the elastic members positioned between the guide grooves and the corresponding grooves of the conveying roller to each have a length of 30 mm or less.
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Patent Agency Ranking
公开(公告)号：US20180147095A1
公开(公告)日：2018-05-31
申请号：US15736429
申请日：2016-06-17
Applicant: ZUIKO CORPORATION
Inventor： Miwa KOSHIJIMA , Hideyuki NAKAMURA
CPC classification number: A61F13/15585 , A61F13/15593 , A61F13/15699 , A61F13/15739 , A61F13/49011 , A61F13/4902 , A61F2013/15878 , B29C65/08 , B29C65/086 , B29C66/1122 , B29C66/221 , B29C66/234 , B29C66/43 , B29C66/431 , B29C66/433 , B29C66/71 , B29C66/7294 , B29C66/81433 , B29C66/8145 , B29C66/83411 , B29K2621/00 , B29K2995/0046 , B29L2031/4878 , B32B5/02 , B32B25/04 , B32B37/0084 , B32B37/06 , B32B2307/51 , B32B2319/00 , B32B2555/02 , B29K2075/00
Abstract: Using a conveyance roller having an outer peripheral surface which is capable of conveying two sheets with an elastic element sandwiched therebetween, in a longitudinal direction of the sheets, and formed with a convex section; and a clamping and pressing device, the sheets with the elastic element sandwiched therebetween are ultrasonic-welded together under pressing. The convex section is formed in a shape extending along a line intersecting a conveyance direction of the conveyance roller, and the convex section is provided with a plurality of grooves at positions spaced apart from each other in a longitudinal direction thereof, wherein each of the grooves extends in the conveyance direction of the conveyance roller to allow a portion of the sheets on which the elastic element is disposed, to be inserted therein.
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公开(公告)号：US20210161728A1
公开(公告)日：2021-06-03
申请号：US16963386
申请日：2018-12-17
Applicant: ZUIKO CORPORATION
Inventor： Hideyuki NAKAMURA , Yukihiko FUJITA , Miwa KOSHIJIMA
Abstract: An elastic resin material having a thermoplastic elastic resin as a main component is heated and melted, and the elastic resin material is discharged in a film or a linear shape from a discharge mechanism to form a film-shape or a linear-shape intermediate product. At a temperature above the temperature region at which the elastic resin material elastically deforms, extending is performed until the thickness or width of the film-shape intermediate product or the thickness of the linear-shape intermediate product assumes a prescribed value; with a cooling roller, the intermediate product is cooled to the temperature region at which the elastic resin material elastically deforms, and the intermediate product is hardened, forming a film-shape or linear-shape elastic member. The elastic member is stretched with a stretch roller to a prescribed stretching ratio, and the stretched elastic member is laminated on and bonded to a first base material sheet.
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8.发明公开公开(公告)号：US20230414418A1
公开(公告)日：2023-12-28
申请号：US18033862
申请日：2021-10-08
Applicant: ZUIKO CORPORATION
Inventor： Kazutoshi MAKIMURA , Miwa KOSHIJIMA
IPC: A61F13/514 , A41D1/00 , A41D31/14 , D06C3/06 , B29C65/00 , B29C65/08 , A61F13/515 , A61F13/49 , A61F13/15
CPC classification number: A61F13/5146 , A41D1/00 , A41D31/14 , D06C3/06 , B29C66/7294 , B29C66/8341 , B29C65/08 , B29C66/344 , B29C66/45 , B29C66/73182 , B29C66/7315 , A61F13/515 , A61F13/49 , A61F13/15699 , A61F13/15764 , A41D2500/30 , B29K2995/0046 , D10B2509/026 , B29L2031/4878
Abstract: The present layered stretchable sheet includes: a plurality of attachment portions at which a pair of non-woven fabrics and a film are thermally bonded together, wherein each one of the attachment portions includes at least one thermal bonding area where the pair of non-woven fabrics and the film are thermally bonded together; at least one boundary line that defines the thermal bonding area; a first vent that is defined by a first opening of the film appearing in a stretched state of the film along the boundary line and that exerts air permeability; and a second vent that is defined by a second opening where a part of the film is absent, the second opening being adjacent to the thermal bonding area and being delimited by the boundary line, wherein the second vent exerts air permeability both in the stretched state and in a non-stretched state.
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公开(公告)号：US20210038440A1
公开(公告)日：2021-02-11
申请号：US16965151
申请日：2019-01-23
Applicant: ZUIKO CORPORATION
Inventor： Miwa KOSHIJIMA , Hideyuki NAKAMURA
Abstract: Provided are: a method and apparatus for manufacturing a highly permeable elastic sheet; a method and apparatus for manufacturing a highly gas-permeable stretchable composite sheet; and a highly gas-permeable stretchable composite sheet. An elastic resin material containing a thermoplastic elastic resin as a main component is melted by being heated to a temperature higher than a temperature range in which the elastic resin material is elastically deformed, the molten elastic resin material is discharged in a fibrous or linear form, the discharged elastic resin material (intermediate) is applied in a net shape onto a cooling member, the applied elastic resin material is cooled by the cooling member to the temperature region in which the elastic resin material is elastically deformed, and the applied elastic resin material is solidified to obtain an elastic sheet. The elastic sheet and non-woven fabrics are stacked and joined to obtain a stretchable composite sheet.
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10.发明申请公开(公告)号：US20210031428A1
公开(公告)日：2021-02-04
申请号：US16967025
申请日：2018-12-14
Applicant: ZUIKO CORPORATION
Inventor： Hideyuki NAKAMURA , Miwa KOSHIJIMA
Abstract: In the present invention, an elastic resin material having a thermoplastic elastic resin is extruded into a sheet shape on a die and made to have a thickness that varies along the width direction, and then is cooled, to a temperature in which the elastic resin material elastically deforms, to form a sheet body that varies in thickness along the width direction, and a stretchable sheet is formed by laminating and joining base sheets. The sheet body includes at least two first and second regions adjacent to each other in the width direction, and the thicknesses of the second regions are greater than that of the first regions. In a wearable article, the stretchable sheet is disposed so that at least a portion of the second regions is closer to an opening around a body or an opening around a leg of the disposable wearable article than the first regions.
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