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Absorbing article

A technology for absorbency and articles, applied in the direction of absorbent pads, clothing, underwear, etc., can solve the problem that the shape stability cannot be fully obtained

Inactive Publication Date: 2006-05-24
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if these techniques are directly applied to absorbent articles using thin absorbent sheets as described above, the desired shape stability cannot be sufficiently obtained.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Sanitary napkins as evaluation samples were produced according to the scheme shown in Fig. 2(a) and (b). The outer shape of the sanitary napkin was set such that the overall length L1 was 300 mm, the overall width W1 of the front wing was 160 mm, and the length from the front end of the sanitary napkin to the center of the front wing was 115 mm.

[0049] Liquid-permeable sheet (front sheet): an air-through nonwoven fabric (a perforated sheet used in "Lorie s Par Slim Guard" manufactured by Kao Corporation) was used.

[0050] Liquid-impermeable sheet (back sheet): A polyethylene film with a thickness of 25 μm was used.

[0051] Absorbent sheet: As the absorbent sheet (41, 42), a sheet obtained by fixing a water-absorbent polymer in a dispersed state in the same fluff pulp fiber ("Lorie's Parslimga" manufactured by Kao Corporation) was used. ド" used in the absorbent sheet).

[0052] Absorbent layer: after overlapping two above-mentioned absorbent sheets (L40=90, W41=35mm...

Embodiment 2

[0057] Sanitary napkins as evaluation samples were produced according to the scheme shown in Fig. 4(a) and (b). The profile of the sanitary napkin is the same as in Example 1.

[0058] Liquid-permeable sheet (top sheet): The same nonwoven fabric as in Example 1 having a width of 70 mm was used.

[0059] Side sheet: use 18g / m 2 SMS non-woven fabric made of polypropylene.

[0060] Liquid-impermeable sheet (back sheet): The same sheet as in Example 1 was used.

[0061] Absorbent sheet: The same sheet as in Example 1 was used.

[0062] Absorbent layer: one sheet of the above-mentioned absorbent sheet is bent so that its two ends leave a gap (G41 = 2mm) and face the approximate center of the upper surface side (the liquid-permeable sheet side). After folding (L40=110, W41=40mm), further wrap the folded sheet with another above-mentioned absorbent sheet (length L4=270mm, width W4=75mm, and the front and rear ends are in a predetermined curved shape). Inside, both ends are super...

Embodiment 3

[0067] Same as Example 1, except that embossing rolls having two rows of protrusions same as in Example 1 are used to provide dimples (depth: 1.5mm, d154=6mm, dw54=13mm, d=3mm) as a stabilizing mechanism Prepare samples for evaluation. The rigidity value of the obtained absorbent layer was 1.7 cN / cm in the width direction and 1.7 cN / cm in the longitudinal direction.

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PUM

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Abstract

The absorbent article (1) of the present invention has a front sheet constituting a skin-contacting surface (2), a back sheet constituting a non-skin-contacting surface (3), and an absorbent layer (4) disposed on the skin-contacting surface side , the absorbent article is formed into a substantially longitudinally long shape. The absorbent layer (4) has a portion with a different number of layers in its width direction, and a portion of the absorbent layer (4) with a large number of layers has a mechanism (5) for stabilizing the wearing shape.

Description

technical field [0001] The present invention relates to absorbent articles such as sanitary napkins, panty liners (sanitary pads), and incontinence pads. Background technique [0002] Absorbent articles in recent years have become thinner and thinner. For example, the applicant proposed a thin absorbent sheet in Japanese Patent Application Laid-Open No. 9-156014, which is compatible with existing absorbent articles. A patent application for an absorbent article that is relatively thin and has excellent absorbency. [0003] However, since the above-mentioned thin absorbent article is thin, when it is worn on the body and twisted due to movement, a gap is likely to be formed between the absorbent article and the body. Therefore, it is required that the absorbent article has good shape stability when worn on the body. On the other hand, the present applicant proposed the technology described in Unexamined-Japanese-Patent No. 10-99372 regarding the fit of an absorbent article....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15
Inventor 山本耕裕木村真由美长原进介
Owner KAO CORP
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