absorbent articles

JP7789521B2Active Publication Date: 2025-12-22KAO CORP
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Patent Information

Application Number
JP2021164400
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-06
Publication Date
2025-12-22
Estimated Expiration
2041-10-06

AI Technical Summary

Technical Problem

Absorbent articles like sanitary napkins often cause chafing due to high fit with the wearer's skin, especially during movement, leading to skin problems such as itching and rashes.

Method used

The absorbent article features a nonwoven intermediate sheet with alternating protrusions and recesses, allowing for shear deformation and maintaining fit while reducing skin contact pressure through non-bonded regions, thereby minimizing chafing.

Benefits of technology

The design ensures high fit and reduces chafing and skin irritation by allowing the article to deform with the wearer's movements, maintaining close contact and preventing slipping.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an absorbent article which, even when a wearer moves, has high fitting properties and is capable of suppressing rubbing against the wearer's skin.SOLUTION: An absorbent article of the present invention comprises a front surface sheet, a rear surface sheet, an absorber, and an intermediate sheet disposed between the front surface sheet and the absorber or between the rear surface sheet and the absorber. The intermediate sheet has a plurality of projecting parts projecting toward a skin side in a thickness direction and a plurality of recessed parts recessed toward a non-skin side in the thickness direction. The intermediate sheet further has: right and left joint areas joined to a skin-side adjacent member and a non-skin-side adjacent member by right and left joint means extending longitudinally and disposed across the lateral center part of an excretory part facing area which faces the excretory part of a wearer; and a non joint area disposed between the right and left joint areas and not joined to any one of the skin-side adjacent member and the non-skin-side adjacent member. Two or more projecting parts and two or more recessed parts adjacent to each other are positioned in the non joint area.SELECTED DRAWING: Figure 4
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