Surface sheet for absorbing article

Abstract

A topsheet for use on the skin facing side of an absorbent article. The topsheet includes a first nonwoven fabric layer 1 and a second nonwoven fabric layer 2 laminated and partly joined together by heat fusion bonding, forming fusion bonds 4. The first nonwoven fabric layer 1 forms a large number of projections 5 projecting toward the skin of a wearer in portions other than the fusion bonds 4. The projections 5 are arranged discretely in both a first planar direction (direction X) and a second planar direction perpendicular to the first planar direction (direction Y). The individual projections 5 are filled with staple fiber 3. The staple fiber 3 is substantially absent in the fusion bonds 4. The individual projections 5 of the topsheet have fiber densities in the following relationship: first nonwoven fabric layer 1 < the staple fiber 3 < the second nonwoven fabric layer 2.

Description

technical field [0001] The present invention relates to a front sheet or laminated nonwoven fabric suitable for the skin-contacting surface of absorbent articles such as disposable diapers, sanitary napkins, panty liners (sanitary pads), and incontinence pads. Background technique [0002] As top sheets of disposable diapers, sanitary napkins, etc., sheets having unevenness formed on the surface that contacts the wearer's skin are widely used. According to the surface sheet having irregularities, since the contact area with the wearer's skin is reduced due to the irregularities, it is possible to reduce the feeling of stickiness and air tightness. For example, a front sheet is known in which a thick sheet material is integrated with another sheet material by embossing, and the compressed portion by embossing is used as a concave portion, and the other portion is used as a convex portion. However, in this top sheet, the performance of the protruding portions that can be desi...

AI Technical Summary

Problems solved by technology

[0008] In addition, the front structure described in Patent Document 1 also aims to impart elasticity to the raised portion through the hydrophilic material layer. Since the elastic raised portion extends continuously along a specific direction, it also has softness in the surface direction. poor sex problem

[0009] In addition, the surface sheet described in Patent Document 2 has a problem in the introduction of liquid because the inside of the convex part is hollow.

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