Enhancement of sheet dewatering using soy flour or soy protein
US8858759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods and compositions for improving dewatering efficiency during a papermaking or pulp drying process are disclosed. The methods can include a step of adding a dewatering agent solution to a location on a paper machine or pulp drying machine. The dewatering agent solution can include a soy based component. The soy based component can be soy flour or soy protein. The dewatering agent solution can be added to a wet end location of the pulp drying machine or paper machine or it can be sprayed onto a paper sheet prior to entering the press section of a paper machine. Additional dewatering agent solutions can also be added. The additional dewatering agent solutions can include cationic polymers or surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.