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Shrinking-proof absorbent products

A technology of absorbent products and shrinkage, applied in the direction of absorbent pads, medical science, bandages, etc., can solve problems such as deformation, damage, product shrinkage, etc.

Inactive Publication Date: 2004-05-05
MCNEIL PPC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common problem with absorbent articles is that the product shrinks and deforms due to the movement of the person wearing the article, which in turn impairs the article's ability to absorb exudates from the body

Method used

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  • Shrinking-proof absorbent products
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  • Shrinking-proof absorbent products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-15

[0030] Embodiment 1-15 and A-II

[0031] use figure 2 The device shown has a thickness in the range of 1.52×10 -3 ~5.08×10 -3 A series of pantiliners measuring 0.06 to 0.2 inches) were subjected to the curvilinear longitudinal bend test. Examples A-II are commercially available pantiliners, while Examples 1-15 are pantiliners of the present invention.

[0032] Specifically, the pantiliners of Examples 1-15 comprise a liquid permeable topsheet, an absorbent core comprising two absorbent layers, and a backsheet. The absorbent layer adjacent to the liquid permeable topsheet is made from about 50 to 65% wood pulp with the balance being a combination of polyethylene / polypropylene bicomponent fibers and polyethylene / polyester bicomponent. The absorbent layer adjacent the backsheet is made of less than about 50% wood pulp with the balance being a combination of polyethylene / polypropylene bicomponent fibers and polyethylene / polyester bicomponent fibers. It should be noted that t...

Embodiment 16-35

[0043] Ten bilayer absorbent cores of the same type as used in the pantiliner pads of Examples 1-15 were subjected to the Gurley Stiffness Test as follows. In each example, the two absorbent layers were separated from each other, and the Gurley stiffness of each layer was measured according to TAPPI T543on-94. The results are shown in Tables 6 and 7. Examples 16-25 are the absorbent layer against the topsheet of the pantiliner (5 gram weight at 0.05 meter (2 inches), factor 11.1). Examples 26-36 are the absorbent layer of the backsheet next to the pantiliner (25 g weight at 0.05 m (2 inches), factor 55.6).

[0044] Example

[0045] Example

Embodiment 37

[0047] Several commercially available pantiliners and two pantiliners constructed identically to those of Examples 1-15 were tested for consumer comfort. Consumers were asked to use pantiliners and rate them on a 1 to 10 scale for how comfortable they are to wear. The results are listed in Table 8.

[0048] product

Average score for wearing comfort

(0-10)

number of women

Kao*

7.5

104

KOTEX.

Lightdays**

7.6

140

ALLDAYS Light***

8

153

this invention

8.5

140

ALLWAYS Alldays

7.7

140

this invention

8

140

[0049] *Acquired from Kao Company

[0050] **Acquired from Kimberly Clark Company

[0051] ***Acquired from Procter & Gamble

[0052] Number

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Abstract

An absorbent article, such as a pantiliner, is provided having excellen t resistance to bunching. The absorbent article exhibits a Bunching Resistance in the range of about 205g to 450 g and may be formed with an absorbent core comprising at least two absorbent layers having different Gurley Stiffnesses.

Description

technical field [0001] The present invention relates to an absorbent product with good anti-bunching resistance (Bunching Resistance). The absorbent article has a shrink resistance of from about 205 grams to about 450 grams and may have an absorbent core comprising at least two absorbent layers of differing Gurley Stiffness. Background technique [0002] Absorbent articles, such as sanitary napkins, pantiliners, diapers, incontinence pads, or interlabial articles, generally comprise a liquid-permeable topsheet on its body-facing side, a backsheet on its garment-facing side , and an absorbent core therebetween. A common problem with absorbent articles is that due to the movement of the person wearing the article, the article shrinks and deforms, which in turn impairs the article's ability to absorb exudates from the body. [0003] Several proposals have been made to address the shrinkage problem, for example, US Patent No. 4,886,513 to Mason Jr. et al. discloses a gasket th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15A61L15/60
CPCA61F2013/15357A61F13/534A61F13/15203
Inventor K·A·比沙M·R·科利
Owner MCNEIL PPC INC