Stretchable member and article including same

A stretchable and elastic body technology, which is applied in the direction of layered products, medical devices, textiles and papermaking, etc., can solve the problems of reduced output, increased cost, and increased manufacturing cost of stretchable laminates, so as to reduce manufacturing costs and achieve excellent performance. The effect of scalability

Inactive Publication Date: 2016-05-04
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, when the elastic body layer is subjected to perforation processing, there occurs a problem that the total manufacturing cost of the stretchable laminate increases due to an increase in cost and a decrease in yield due to the perforation processing.

Method used

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  • Stretchable member and article including same
  • Stretchable member and article including same
  • Stretchable member and article including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] 100 parts by weight of styrene-based resin (manufactured by Zeon Corporation, trade name: Quintac3390, styrene content=48% by weight, MFR=15.0g / 10min) and 50 parts by weight of alkane-based processing oil (manufactured by Idemitsu Kosho Co., Ltd. (manufactured by Idemitsu Kosan Co., Ltd., trade name: PW-90) was mixed, and the viscosity of the mixture was adjusted to 38500 cps (200° C.). The mixture is coated on a silicon-based separator in a fibrous form at 200° C. using a spray coating device (curtain spray hot melt coating device) (coating amount: 100 g / cm 2 , fiber diameter: 10 μm to 30 μm) to form a fiber aggregate-like elastomer layer on the silicon-based separator. The resulting fiber assembly-like elastic body layer has an air-permeable portion, and the length of the largest portion of the air-permeable portion is 1 mm to 3 mm.

[0116] Remove the silicon-based separator from the obtained fiber aggregate-like elastomer layer, and use the SIS-based hot-melt press...

Embodiment 2

[0120] First, 100 parts by weight of olefin-based resin (manufactured by ExxonMobil, trade name: Vistamaxx6202, density : 0.861g / cm 3 , MFR=18.0g / 10min) was intermittently applied to the silicon-based separator (coating thickness: 80 μm, coating width: 2 mm, coating interval: 10 mm). Subsequently, using a stripe type coating device (stripe type coating hot melt coating device), at 200 ° C, in the MD direction coating (coating thickness: 80 μm, coating width: 2mm, coating interval: 10mm ) 100 parts by weight of olefin-based resin (manufactured by ExxonMobil, trade name: Vistamaxx6202, density: 0.861g / cm 3 , MFR=18.0g / 10min). In this way, the mesh-like elastomer layer was formed on the silicon-based separator. The resulting mesh-like elastomer layer had mesh-like air-permeable portions having a size of 10 mm square.

[0121]Remove the silicon-based separator from the obtained grid-shaped elastomer layer, and use the SIS-based hot-melt pressure-sensitive adhesive to coat the ...

Embodiment 3

[0125] First, 100 parts by weight of olefin-based resin (manufactured by ExxonMobil, trade name: Vistamaxx6202, Density: 0.861g / cm 3 , MFR=18.0g / 10min) was intermittently applied to the silicon-based separator (coating thickness: 80 μm, coating width: 2 mm, coating interval: 5 mm). Subsequently, 100 parts by weight of olefin-based resin (manufactured by Mitsui Chemicals, Ltd., trade name: TAFMERPN -3560, density: 0.866g / cm 3 , MFR=6.0g / 10min) (coating thickness: 60 μm, coating width: 2 mm, coating interval: 5 mm). In this way, the mesh-like elastomer layer was formed on the silicon-based separator. The resulting mesh-like elastomer layer had mesh-like air-permeable portions having a size of 5 mm square.

[0126] Remove the silicon-based separator from the resulting grid-like elastomer layer, and use the olefin-based hot-melt pressure-sensitive adhesive to coat the PP-based non-woven fabric (PP carded into a net type, basis weight: 24gsm) in a strip-coated manner. ) bonded...

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Abstract

Provided is a stretchable member having excellent stretching properties, having good air permeation properties, no jutting out or burring of an elastomer layer, and having reduced production costs. Also provided is an article including said stretchable member. This stretchable member includes an elastomer layer having an air-permeable section.

Description

technical field [0001] The present invention relates to stretchable materials and articles comprising such stretchable materials. Background technique [0002] Various stretchable laminates have been proposed for articles such as sanitary products such as diapers and masks. As any such stretchable laminates, stretchable laminates comprising a laminate of an elastomer layer and a nonwoven fabric layer have been reported (for example, see Patent Document 1 and Patent Document 2). In addition, an elastic body layer (elastomer film, etc.) having stretchability has been used around the waist opening of the disposable diaper or around the leg opening of the disposable diaper for improving fittability to the wearer. . [0003] The elastomer layer in conventional stretch laminates is a non-porous film and thus has poor air permeability. Therefore, when the laminate is applied to articles such as sanitary products such as diapers or face masks, problems such as skin rashes occur d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/10D04H1/4374D04H3/16
CPCB32B3/266B32B5/022B32B5/028B32B5/04B32B5/26B32B7/14B32B27/12B32B27/302B32B27/32B32B2250/03B32B2250/40B32B2255/02B32B2255/26B32B2262/0253B32B2307/51B32B2307/54B32B2307/724B32B2535/00B32B2555/02C08F10/06C08F212/08
Inventor 荒川正章
Owner NITTO DENKO CORP
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