Method for producing fibrous sheet

Details Method for producing fibrous sheet Method for producing fibrous sheet

1977-02-04

1978-10-24

Lindsay, Jr., Robert L.

Paper making and fiber liberation

Processes and products

Non-fiber additive

162164EP, 162166, 162168R, 162168N, 162169, 162183, D21D 300

Patent

active

041219660

ABSTRACT:
A fibrous sheet bonded with a latex flocculate is produced by adding zinc white powders to a carboxyl modified anionic latex, adjusting the pH to at least 7, adding thereto a water soluble cationic polymer to obtain a latex flocculate, adding thus obtained flocculate to a fiber slurry and subjecting the fiber slurry to a known wet paper making process.

REFERENCES:
patent: 2301998 (1942-11-01), Bernstein et al.
patent: 2899353 (1959-08-01), Engel et al.
patent: 2971879 (1961-02-01), Piersol
patent: 3223580 (1965-12-01), Eckert et al.
patent: 3344017 (1967-09-01), Lesniak
patent: 3776812 (1973-12-01), Jongetjes
Hach's "Chem. Dict." (1969), p. 736.

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