Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1988-09-29
1990-02-20
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621811, 1621814, 1621816, 1621818, D21H 328
Patent
active
049023829
ABSTRACT:
A neutral wood containing paper can be produced by adding, to a stock slurry containing mineral filler and a large majority of high yield pulp, a cationized starch, and thereafter bentonite and colloidal silica either simultaneously or successively with a time interval of at most 60 seconds, resulting in an improved retention of fiber and filler, an improved drainage, and a decreased pitch problem.
REFERENCES:
patent: 4388150 (1983-06-01), Sunden et al.
patent: 4643801 (1987-02-01), Johnson
patent: 4753710 (1988-06-01), Langley et al.
Honma Akira
Meguro Yoshihito
Miyamura Takao
Sakabe Takao
Suzuki Hiroshi
Chin Peter
Dang Thi
Hokuetsu Paper Mills Ltd.
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