Absorbent articles that include liquid barriers

US6506187B1 · kind B1 · utility

Assignee

• SCA HYGIENE PRODUCTS AB · SE

Inventors

• Mikael Andersson · Ronneby, SE
• Ingegerd Carlberg · Vallda, SE
• Anita Nyberg · Umeå, SE
• Elisabeth Engstrom · Mölndal, SE

Key dates

• Filing date: Jan 21, 2000
• Grant date: Jan 14, 2003
• Expiry date: Jan 21, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F13/49413
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

There is provided an absorbent article, such as a diaper, a pant diaper or an incontinence protector that includes longitudinally extending edges and transversally extending edges, a bottom liquid-impermeable sheet, an absorbent layer, longitudinally extending liquid barriers fastened along or on the longitudinal edges of the article, side-flaps which extend laterally outside the liquid barriers and a first upper, essentially liquid-permeable surface sheet between said liquid barriers and a second upper, essentially liquid-impermeable surface sheet outwardly of said liquid barriers, wherein the ends of the liquid barriers are folded down at the front and/or rear end-part and fastened flat against the first and/or the second upper surface sheet. Those areas of the surface sheets situated at the front and/or the rear end-part are comprised of essentially liquid-impermeable material or are covered with essentially liquid-impermeable material. At least a part of said areas has been made permeable to liquid, preferably by perforating said part, down to the absorbent layer which extends beneath at least portions of said part. That part which has been made permeable to liquid is located w…