Disposable absorbent article with unitary topsheet and unitary absorbent article

摘要

The present invention relates to disposable absorbent articles such as sanitary napkins, panty liners, baby diapers, adult incontinence articles and sweat pads. According to the present invention the absorbent article in the region designated for liquid deposition on its wearer facing surface has a single layer topsheet onto which liquid to be absorbed is provided during use of the article. The absorbent article includes a backsheet forming the liquid barrier surface and a unitary absorbent core between the topsheet and the backsheet. Importantly the unitary core provides improved liquid handling to the absorbent article and increases the masking, i.e. ability to hide stains due to absorbed liquid, of the article. This is particularly beneficial in the context of articles for absorption of liquids with high color intensity, such as menstrual liquid or urine of older adults.

主权项

1. A disposable absorbent article, comprising:
a liquid pervious topsheet comprising an apertured polymeric film; a backsheet; an absorbent core disposed between the liquid pervious topsheet and the backsheet; wherein the absorbent core is a unitary structure comprising a plurality of strata; wherein the absorbent core comprises an outer wearer facing surface and an opposing outer garment facing surface; wherein a capillarity gradient exists in the absorbent core from the wearer facing surface towards the garment facing surface; and wherein the plurality of strata comprises: a first stratum forming the wearer facing surface and comprising a mixture of cellulose fibers and bi-component fibers; a second stratum adjacent the first stratum and comprising cellulose fibers and absorbent gelling material; and a third stratum forming the garment facing surface and comprising cellulose fibers and a binder material; wherein the first stratum comprises 60%-95% by weight of the first stratum of bi-component fibers and 5%-40% by weight of the absorbent core of cellulose fibers.