Method for improving retention and drainage characteristics in a

Details Method for improving retention and drainage characteristics in a Method for improving retention and drainage characteristics in a

1994-03-22

1996-01-09

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162175, 1621813, 162183, D21H 2110

Patent

active

054825954

ABSTRACT:
A method of improving the drainage characteristics of a pulp slurry in a papermaking operation utilizing the sequential steps of adding alum, ionic polyacrylamide and cationic starch. The cationic starch can be added to the slurry prior to or after the primary screen.

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patent: 4927498 (1990-05-01), Rushmere
patent: 5127994 (1992-07-01), Johansson
patent: 5167766 (1992-12-01), Honig et al.

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