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Disposable absorbent article and process for making the same

a technology of absorbent articles and absorbent pads, which is applied in the field of disposable absorbent articles, can solve the problems of difficult to tear the front waist region off from the rear waist region, the measure is not suitable, and the fastener means may be unintentionally disengaged from the landing zone, so as to ensure flexibility and breathability of the base sheet

Inactive Publication Date: 2005-04-14
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a disposable absorbent article with improved fastener means that are not affected by elastic members and can easily be torn off if desired. The article includes a chassis with front and rear waist regions, divided into an elasticized intermediate zone and inelasticized transversely opposite side edge zones in which the fastener means are attached. Reinforcing layers are used to stabilize the engagement of the fastener means and prevent breakage or deformation. The article also has a flexible and liquid-resistant base sheet and a semirigid absorbent panel to enhance fit and comfort for the wearer.

Problems solved by technology

Such gathers make it difficult to bring the fastener means in a firm engagement with a landing zone and an unstable engagement is accompanied with a problem that the fastener means may be unintentionally disengaged from the landing zone.
While it is technically possible to provide the waist region partially with the elastic members, such a measure is not suitable for a mechanical apparatus driven at a high speed to mass produce the article as described herein at a low cost.
Assumed that these waist regions are forced by a nonwoven fabric made of staple fibers or continuous filaments of synthetic resin as this is usually the case and particularly such a nonwoven fabric contains fibers or filaments oriented to cross the tear off direction defined by the tear off lines, it is difficult to tear the front waist region off from the rear waist region.

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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  • Disposable absorbent article and process for making the same
  • Disposable absorbent article and process for making the same
  • Disposable absorbent article and process for making the same

Examples

Experimental program
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Embodiment Construction

[0040] A disposable diaper illustrated in FIGS. 1 through 3 as a specific embodiment of the disposable absorbent article according to the invention has an absorbent chassis 10 comprising a front waist region 12, a rear waist region 13, a crotch region 14 extending between these waist regions 12, 13, and a pair of leg regions 14a defined by transversely opposite side edge portions of the crotch region 14. The chassis 10 comprises a base sheet 17 and an absorbent structure 18. The base sheet 17 has inner and outer surfaces 15, 16 and exhibits a relatively high flexibility and liquid-resistance and the absorbent structure 18 extends over the crotch region 14 further into the front and rear waist regions 12, 13. The chassis 10 further comprises a plurality of elastic members 19 arranged in the front and rear waist regions 12, 13 as first elastic members, a plurality of elastic members 20 provided in the crotch region 14 along the respective leg regions 14a as second elastic members, and...

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Abstract

A disposable absorbent article such as a disposable diaper including fastener means by means of which front and rear waist regions are releasably connected with each other improved so that the fastener means are not affected by contraction of elastic members arranged in these waist regions In this absorbent article, a waist region and / or a waist region is or are divided into elasticized intermediate zone provided with elastic means and inelasticized transversely opposite side edge zones provided with none of the elastic means and contiguous to transversely opposite side edges of the intermediate zone. Fastener means are provided in the transversely opposite side edge zones.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a disposable absorbent article used for absorption and containment of body wastes and to a method of making the same. The invention particularly relates to a disposable absorbent article such as an open or pull-on type diaper for an infant or incontinent patient or training pants and a method of making the same. Regarding the method, the invention particularly to a method comprising the step of attaching waist-surrounding elastic members to a base sheet functioning to support an absorbent panel and to hold this in close contact with a wearer's body. [0002] WO 01 / 13843 A1 (hereinafter referred to as “Citation 1”) relating to an absorbent article such as a disposable diaper discloses a structure comprising a plurality of elastic members provided in a rear waist region of the article and fastener means detachably connecting the rear waist region with a front waist region of the article wherein the fastener means are fi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F5/44A61F13/15A61F13/20A61F13/49A61F13/496A61F13/56A61F13/62
CPCA61F13/49011A61F2013/49028A61F13/5655A61F13/565A61F13/62A61F13/15A61F13/49A61F13/496
Inventor OTSUBO, TOSHIFUMIYAMAMOTO, HIROKISUGITO, TOMOKO
Owner UNI CHARM CORP
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