Absorbent article and surface sheet thereof

Abstract

To provide an absorbent article that has not only a highly spatial appearance but also a high cushioning effect, minimizing a contact area with the skin, and that enhances the shape retention of uneven embossing to thereby enable continual maintenance of uneven configuration not only in the dry state but also at body fluid absorption. There is provided absorbent article (1) comprising absorbent member (4) interposed between liquid-permeable surface sheet (3) and backside sheet (2), wherein the surface sheet (3) is a multilayer sheet having at least nonwoven fabric layer (3A) constituting a skin contact plane layer and, superimposed on the skin noncontact plane side remote from the nonwoven fabric layer (3A), plastic film layer (3B), the plastic film layer (3B) constituted of a material of melting point lower than that of the nonwoven fabric layer, and wherein the surface sheet (3) is one having undergone not only multihole making treatment but also rugged embossing forming a multiplicity of outward protruding elevated portions (7,7...) under such heating conditions that the temperature is not lower than the melting point of the plastic film layer (3B) but lower than the melting point of the nonwoven fabric layer (3A).

Description

technical field [0001] The present invention relates to an absorbent article using a front sheet, which is rich in three-dimensionality and has high cushioning properties, eliminates skin problems by reducing the contact area with the skin, and protects the surface sheet of the concave-convex embossing. Excellent shape. Background technique [0002] Conventionally, as the surface material of absorbent articles, there are products in which appropriate embossing patterns are applied for the purpose of suppressing wetness by reducing the contact area with the skin, obtaining texture, and improving tactility at the same time. As such a product, the following patent documents 1-5 are mentioned, for example. [0003] Patent Document 1 below discloses an absorbent article using a nonwoven fabric as a front sheet, on which a plurality of raised portions and grooves are alternately arranged without a planar portion, and the raised portions The groove portion is convexly curved and ...

AI Technical Summary

Problems solved by technology

[0013] For the front sheet described in the above-mentioned Patent Document 1, it is true that a three-dimensional effect is created on the surface of the sheet by alternately arranging the ridges and grooves, but the ridges are in linear contact with the skin and have a large contact area with the skin, which cannot effectively prevent chafing. Injury, inflammation, itching and other skin problems, and can not eliminate the sticky feeling when bleeding

In addition, the shape retention of the wave processing that forms the protrusions and grooves on the nonwoven fabric is not sufficient, and there is a problem that the degree of unevenness of the wave processing gradually decreases when the state of being subjected to pressure during sitting or sleeping continues.

In addition, the fiber part of the raised part can ensure the raised amount in a dry state, but when it becomes a wet state, the fiber naturally compresses (shrinks), and the raised amount decreases, and there is a problem that the shape retention of the unevenness is insufficient, such as the cushioning property is extremely reduced.

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