Method of minimizing untoward effect of contaminants, such as pitch, in the papermaking operation
US4608123A · kind A · utility
15Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1985 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Feb 20, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method of minimizing the untoward effect of contaminants, such as pitch and related materials, in the papermaking operation. An aqueous dispersion of water-dispersible synthetic pulp, such as polypolyolefin pulp, is added to a pulp slurry comprised of cellulosic pulp, at a point prior to sheet formation. The synthetic pulp adsorbs a substantial amount of the pitch present in the pump slurry and prevents it from depositing on the papermaking apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.