Process for producing convoluted, fiberized, cellulose fibers and sheet products therefrom
US4036679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Dec 29, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process is provided for producing novel convoluted, fiberized substantially nonfibrillated, cellulose fibers and novel sheet products from low moisture-content cellulose pulp, at a high through-put rate, which includes the application of contortive forces to a pulp mass under controlled operating conditions, wherein the feed rate, work space gap, and relative rate of movement of the working elements applying the contortive forces are correlated to maintain the work space filled with fibers under sufficient compression. Sheets made from these fibers exhibit excellent bulk, softness and absorbency properties, even when the formation process is conducted in an aqueous system, and even when substantial compacting forces are applied to the wet web processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.