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Absorbent products

A technology for absorbent products and absorbent components, applied in the field of absorbent products, which can solve the problems that the top layer is easy to stick to the wearer, does not mention, forms gaps, etc.

Inactive Publication Date: 2006-04-12
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional absorbent articles using such bulky sheets have the problem that the top sheet tends to stick to the body of the wearer, giving the wearer an uncomfortable feeling, or a gap is easily formed between the top sheet and the underlying absorbent member.
Naturally, there is no mention of fixing this non-woven fabric in its stretched state

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] (1) Form the preparation of the first layer material

[0069] Heat-bondable sheath-core composite fiber (this composite fiber is made up of polyethylene terephthalate core and polyethylene sheath, the weight ratio of core / sheath is 5 / 5, fineness is 2.2dtex, fiber Length is 51 millimeters (NBF-SH, can obtain from Daiwabo Co., Ltd.)) carded into a web, and heat treatment at 120 ℃, to prepare have basis weight be 15g / m 2 of non-woven fabrics.

[0070] (2) Form the preparation of the second layer material

[0071] With self crimping fiber (it is the heat-shrinkable sheath-core type combination fiber that is made up of ethylene-propylene random copolymer (EP) core and polypropylene (PP) sheath, has fineness 2.2dtex and shrinkage initiation temperature Ts is 90°C, (available from Daiwabo Co., Ltd.)) and carded into a web. The obtained nonwoven fabric had a basis weight of 35 g / m 2 .

[0072] (3) Preparation of bulky flakes

[0073] The nonwoven fabrics prepared in (1) a...

Embodiment 2

[0080] The bulky sheet prepared in Example 1 was cut into rectangles, 80 mm wide in CD and 230 mm long in MD. Separately prepare two 60 mm wide water-repellent spunbonded nonwoven fabrics having a basis weight of 18 g / m 2 , consisting of a core-sheath composite fiber comprising a polyethylene terephthalate core and a polyethylene jacket. Each strip of spunbonded nonwoven fabric was folded in two along its longitudinal direction to prepare a pair of 30 mm wide strips 14 (folded) (see Fig. 9(a) and Fig. 9(b)).

[0081] The bulky thin slice 10 was stretched 10% in the MD. The mountain-folded side of the folded nonwoven fabric strip 14 was bonded to each longitudinal side of the stretched lofty sheet 10 with a 10 mm coverage using hot melt adhesive 15 . The resulting composite sheet had a 60 mm wide portion of the lofty sheet 10 and a 30 mm wide double folded spunbond nonwoven fabric 14 on both sides of the lofted sheet.

[0082] The composite sheet was placed on the same absor...

Embodiment 3

[0086] A sanitary napkin was prepared in the same manner as in Example 2, except that the composite sheet was fixed in the MD with its bulky sheet partially stretched by 15%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

An absorbent article having a substantially oblong shape and comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent member interposed between the topsheet and the backsheet is disclosed. The topsheet is a bulky sheet which exhibits elastomeric behavior as a whole and comprises a first layer disposed on the side of a wearer and a second layer disposed on the side of the absorbent member. The first layer and the second layer are partially bonded together at joints in a prescribed pattern. The first layer has protrusions on the side of a wearer in portions other than the joints. The second layer is made of a material exhibiting elastomeric behavior. The topsheet is fixed in an extended state in at least one of the longitudinal direction and the width direction of the absorbent article.

Description

technical field [0001] The present invention relates to an absorbent article having a topsheet which has a reduced tendency to stick to the skin, which absorbs little bunching and which exhibits excellent absorbent properties. Background technique [0002] Absorbent articles, such as sanitary napkins and disposable diapers, need to meet performance requirements including: (1) absorbency and retention of the wearer's excreta, such as menstrual blood or urine, to prevent leakage or failure; (2) surface Properties are non-discomfort to the wearer and do not cause rashes due to overhydration or irritation. [0003] In order to meet these requirements, it is known to use a bulky sheet with raised portions on the wearer's side as the top sheet of an absorbent article. However, conventional absorbent articles using such bulky sheets have the problem that the top sheet tends to stick to the body of the wearer, giving the wearer an uncomfortable feeling, or a ga...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/511A61F13/15
CPCA61F2013/51182A61F2013/51322A61F13/511A61F2013/51355A61F13/51104A61F13/5116A61F13/5123A61F13/513
Inventor 丰岛泰生坂本纪子杉浦弘子宫本孝信
Owner KAO CORP
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