Modified cellulosic fibers and method for preparation thereof
US4431481A · kind A · utility
94Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Mar 29, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cellulosic fibers, characterized by a lack of swellability and incapable of natural fiber-to-fiber bonding, are produced by a process which comprises treating an aqueous slurry of the fibers with a formaldehyde-free polymeric compound, heating the treated fibers to cause the polymeric compound to react with the fibers, and refiberizing to separate individual, treated fibers. The fibers are useful in the preparation of improved cellulosic webs characterized primarily by their increased bulk and improved softness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.