Distribution strip for absorbent products
US6495734B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jun 14, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15422
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent structure which includes a fluid storage layer comprising matrix fibers (e.g., cellulose fluff fibers) and superabsorbent polymers positioned above a distribution strip. The strip comprises cellulosic fibers (e.g., cotton linters, mercerized cellulose, fluff pulp, or chemically treated cellulose) having a basis weight of between 45 g/m2 and 140 g/m2, preferably between 75 g/m2 and 110 g/m2, and a density of between 0.20 g/cc and 0.60 g/cc, preferably between 0.25 g/cc and 0.55 g/cc. The absorbent structure may also comprise a fluid pervious top sheet and a fluid impervious back sheet. The structure may be used in diapers, feminine hygiene pads or adult incontinence pads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.