Retention and drainage aid for papermaking

Details Retention and drainage aid for papermaking Retention and drainage aid for papermaking

1988-03-08

1989-01-17

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621816, 162183, D21H 358, D21H 378

Patent

active

047986530

ABSTRACT:
A papermaking stock comprising cellulose fibers in an aqueous medium at a concentration of preferably about 50% by weight of the total solids in the stock including a retention and dewatering aid comprising a two component combination of an anionic polyacrylamide and a cationic colloidal silicia sol. The stock exhibits enhanced resistance to shear forces during the papermaking process. A papermaking process is also described.

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patent: 4578150 (1986-03-01), Hou

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