Absorbent core for use in catamenial products
US5334176A · kind A · utility
100Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1991 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Jul 23, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/8491
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Curled, twisted cellulosic fibers are reduced in size by mechanical means, i.e., by refining. The refined fibers are formed into sheets which are used as an absorbent layer in diapers, bandages and, especially, in sanitary napkins. In one mode, the refined fibers can be used to provide shaped sanitary devices. In an optional mode, fibers having intra-fiber capillary channels can be used to direct fluids into absorbent sheets comprising the refined, curled cellulosic fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.