Absorbent core having a dusting layer
US4888231A · kind A · utility
910Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1987 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Jun 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Airlaid fibrous webs having a primary layer having discrete particles of absorbent gelling material dispersed through at least a portion of the web airlaid over a dusting layer of essentially hydrophilic fiber material. The dusting layer acts to block the passage of particles injected in the stream of fibers forming the primary layer so as to minimize equipment plugging problems and the loss of particles or fibers through the foraminous forming element and to provide a more efficient absorbent core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.