Method for recovery of cellulosic fibers containing latex solids from latex bonded broke
US4735682A · kind A · utility
11Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cellulosic fibers containing latex solids are recovered from latex bonded broke by agitation of the broke in an aqueous alkaline solution having an alkali metal hydroxide concentration of 0.5 to 1.5 mol percent for a period of time in the range of ten minutes to four hours. The resulting fibers containing cured latex solids may be added to conventional papermaking fibers in amounts as high as 10 to 15 percent by weight for the production of facial quality tissue to produce a high quality product web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.