Process for the production of paper

Details Process for the production of paper Process for the production of paper

1989-02-24

1990-08-07

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621646, 162175, 162178, 1621816, D21H 1732, D21H 1744, D21H 1768

Patent

active

049465570

ABSTRACT:
A process for the production of paper by forming and dewatering a suspension of cellulose containing fibers and optional fillers on a wire in the presence of a cationic silica based sol and a cationic polymeric retention agent. The cationic polymeric retention agent is cationic guar gum or a cationic synthetic polymer such as cationic polyacrylamide. The combination of cationic silica sol and cationic polymer retention agent gives improved retention of fines and fillers and eases drainage.

REFERENCES:
patent: 3007878 (1961-11-01), Alexander et al.
patent: 3620978 (1971-11-01), Moore, Jr.
patent: 3719607 (1973-03-01), Moore, Jr.
patent: 3956171 (1976-05-01), Moore, Jr. et al.
patent: 4309247 (1982-01-01), Hou et al.
patent: 4366068 (1982-12-01), Ostricher et al.

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