Twisted, chemically stiffened cellulosic fibers and absorbent structures made therefrom
US4898642A · kind A · utility
104Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1989 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Feb 1, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Individualized, stiffened, twisted cellulosic fibers and absorbent structures made from such fibers. The fibers have an average dry fiber twist count of at least about 4.5 twist nodes per millimeter, an average wet fiber twist count of at least about 0.5 twist nodes per millimeter less than the dry fiber twist count, and a water retention value of between about 28% and about 50%. Preferably the fibers have an average wet fiber twist count of at least about 3.0 twist nodes per millimeter and an isopropyl alcohol retention value of less than about 30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.