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Absorbent article

It is an absorbent and article technology, which is applied in the direction of absorbent pads, medical science, clothing, etc., and can solve the problems of elastic member shrinkage resistance, poor cushioning, and insufficient use of elastic member shrinkage force.

Active Publication Date: 2009-09-23
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the breathability and softness of the waist and waist are poor
In addition, since the shrinkage of the elastic members is hindered, in order to obtain sufficient shrinkage force of the waist gathers and waist gathers, it is necessary to increase the number of elastic members, or use elastic members with larger shrinkage force. contraction force is underutilized
Furthermore, waist gathers and waist gathers have poor cushioning properties in the thickness direction.

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

[0450] "Example 1" was prepared as an example corresponding to the above-mentioned second embodiment. Specifically, as the outer layer sheet 21 and the pressing sheet 27, a hydrophobic air-through nonwoven fabric (weight per unit area of ​​20 g / m 2 ) composed of a core-sheath composite fiber whose core is PET / sheath is PE is used. 2 ), as the inner layer sheet 22, use the hydrophobic spun-bonded non-woven fabric (weight per unit area is 16g / m 2 ). As the hydrophilic sheet 29 separated from the inner layer sheet 22, a non-woven fabric (weight per unit area of ​​10 g / m2) that has been hydrophilized to the SMMS non-woven fabric composed of PP fibers is used. 2 ).

[0451] In Example 1, the outer layer sheet 21 and the inner layer sheet 22 are joined to each other by intermittent joining portions 41 in the stretching direction of the composite stretchable portion 4 and in a direction perpendicular to the stretching direction. The hydrophilic sheet 29 is disposed on a region cor...

Embodiment 2

[0453] "Example 2" was prepared as an example corresponding to the above-mentioned fifth embodiment. Specifically, as the outer layer sheet 21 and the pressing sheet 27, the same nonwoven fabric as that of the outer layer sheet 21 in Example 1 was used. On the other hand, unlike Example 1, the hydrophilic sheet 29 separate from the inner layer sheet 22 is not provided. That is, the entire inner layer sheet 22 is the hydrophilic sheet 29 , and the same nonwoven fabric as the hydrophilic sheet 29 in Example 1 is used as the hydrophilic sheet 29 . Other than that, it is the same as in Example 1.

Embodiment 3

[0455] As a partly different example from Example 1, "Example 3" was created. Embodiment 3 Compared with Embodiment 1, the hydrophilic sheet 29 uses a spunlace nonwoven fabric (weight per unit area is 40 g / m2) made of rayon (70% by weight) and PET (30% by weight). 2 ). Other than that, it is the same as in Example 1.

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 1 of the invention includes an absorbent body 3 and an outer cover 2. The outer cover 2 has a front section A, a crotch section C, and a rear section B and includes an outer sheet 21, an inner sheet 22, and elastic members 23. The outer cover 2 has a below-waist gather formed of a composite stretch panel in its below-waist portion D. The composite stretch panel has the outer and inner sheets 21, 22 bonded at bonds discretely arranged in the stretch direction thereof and the direction perpendicular thereto. The elastic members 23 extend not to pass the bonds without being fixed to the outer and inner sheets 21, 22 at other than their both ends. The outer and inner sheets 21, 22 form folds continuously extending over a plurality of the elastic members 23. The waist portion F of the outer cover 2 has a lower extension percentage in its laterally middle part than in the other parts on both sides of the middle part.

Description

technical field [0001] The present invention relates to absorbent articles such as disposable diapers and sanitary napkins. Background technique [0002] In the past, the following disposable diapers are known for pants-type disposable diapers with an absorbent main body containing an absorbent core and an outer covering material joined to the non-skin-contacting side of the absorbent main body: For the purpose of fit for the wearer, etc., waist gathers are provided on the abdomen and back waists of the outer cover material, and waist gathers are provided on the waist (see, for example, Patent Document 1 below). In the underpants-type disposable diaper described in Patent Document 1, the outer covering material is formed of an outer layer sheet, an inner layer sheet, and a plurality of elastic members arranged between the two sheets, and the waist gathers and The waist gathers are formed by intermittently joining the elastic member to the outer sheet and the inner sheet at ...

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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IPC IPC(8): A61F13/496A61F13/15A61F13/49
CPCB29C66/1122B29C65/02B29C65/087B29C65/18B29C66/21B29C66/433B29C66/7294B29C66/81433B29C66/83411B29C66/83511B29K2995/0046B29L2031/4878
Inventor 早濑彻佐佐木纯恩田蓝子高桥明男富田美奈奥田泰之
Owner KAO CORP
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