Absorbent article with a strongly hydrophobic layer
AssigneeSCA Hygiene Products AB
InventorsCarolyn Berland, Rozalia Bitis
Life of this patent
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Abstract
An absorbent article such as a diaper, panty diaper, panty liner, a sanitary napkin, an incontinence device or the like, includes at least a liquid-permeable topsheet made from at least one layer of web, foam or film material and a backsheet made from at least one layer of web, foam or film material, and optionally at least one further layer of web, foam or film material. At least one of the layers includes a coating of a hydrophobic thermoplastic polymer having an irregular surface and shows a contact angle of a sessile water drop of more than 110°. Depending on the location and the arrangement of this highly hydrophobic coating, beneficial effects in terms of the control of body liquids arise.
Claims37
Absorbent article comprising at least a liquid-permeable topsheet made from at least one layer of web, foam or film material and a backsheet made from at least one layer of web, foam or film material, and optionally at least one further layer of web, foam or film material,
- wherein at least one said layers comprises a coating of a hydrophobic thermoplastic polymer having an irregular surface and shows a contact angle of a sessile water drop of more than 110°.
Method of making an absorbent article,
- said article comprising at least a liquid-permeable topsheet made from at least one layer of web, foam or film material and a backsheet made from at least one layer of web, foam or film material, and optionally at least one further layer of web, foam or film material, said method comprising:
- applying onto at least one of said layers a solution of a hydrophobic thermoplastic polymer in a solvent and evaporating said solvent to form a coating having an irregular surface, and
- incorporating said coated layer into the absorbent article.
Dependencies are inferred from the claim text.