FIELD: paper-and-pulp industry.
SUBSTANCE: cellulose product contains clay having stacking of atomic planes 2R2. Product represents paper of fibrous pulp, while clay has cationic nature. Preparation of product comprises: providing aqueous suspension containing cellulose fibers and optionally filler; adding clay having stacking of atomic planes 2R2.to suspension; and dehydrating thus prepared suspension. Another method of preparing cellulose product comprises: providing aqueous suspension containing cellulose fibers and optionally filler; adding cationic clay to suspension; adding one or several draining auxiliary substances enhancing retention of filler and containing at least one cationic polymer; and dehydrating thus prepared suspension.
EFFECT: reduced interfering and harmful substance in cellulose suspension and enhanced retention of filler, dehydrating agents, and sizing agents.
27 cl, 14 tbl, 13 ex
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RU2263172C2 |
METHOD FOR PRODUCTION OF PAPER AND PAPER PRODUCED BY THIS METHOD | 2006 |
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Authors
Dates
2007-06-10—Published
2003-11-07—Filed