Articles comprising cationic polysaccharides and acidic pH buffering means
AssigneeThe Proctor & Gamble Company
InventorsAntonella Pesce, Adelia Alessandra Tordone, Giovanni Carlucci, Achille Di Cintio
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Abstract
The present invention relates to articles, preferably disposable absorbent articles like sanitary napkins and pantiliners, which comprise a cationic polysaccharide, typically chitin-based material and/or chitosan material, and an acidic pH buffering means. Such disposable absorbent articles deliver improved odor control performance even upon prolonged wearing time of the articles.
Claims8
An article comprising a liquid pervious topaheet, a backsheet, an absorbent core intermediate said backsheet and said topsheet, said absorbent core comprises from about 0.5 g/m2 to about 500 g/m2 of a cationic polysacchariae comprising an aminopolysaccharide selected from the group consisting of chitosan, chitosan salt, crosslinked chitosan and a mixture thereof;
- and from about 0.1 g/m2 to about 250 g/m2 of an acidic pH buffering means having a pH in the range of from about 3.5 to about 6.5 and comprises a weak acid having its pKa or at least one of its pKas in the range from about 3.5 to about 6.5 and its conjugate base;
- and from about 5 g/m2 to about 250 g/m2 of absorbent gelling material.
A method of controlling odour associated with bodily fluids wherein said bodily fluids are contacted with an odour control system comprising a cationic polysaccharide, selected from the group consisting of chitosan, chitosan salt, crosslinked chitosan and a mixture thereof, and an acid pH buffering means typically having a pH in the range 3.5 to 6.5.
Dependencies are inferred from the claim text.