Method of manufacturing paper or cardboard products

Details Method of manufacturing paper or cardboard products Method of manufacturing paper or cardboard products

1978-12-19

1980-07-01

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Non-fiber additive

162181D, 162183, D21H 328

Patent

active

042104904

ABSTRACT:
Paper or cardboard products are manufactured by mixing an aqueous solution or dispersion of a cationic starch with an aqueous suspension of a kaolinitic clay filler, and adding the resulting mixture to a stock of cellulosic fibres to form a furnish containing the kaolinitic clay filler, the cationic starch and the cellulosic fibres, which furnish is then formed into the desired paper or cardboard products, the amount of shear to which the mixture containing the clay filler and cationic starch is subjected being controlled to ensure that the furnish contains flocs of clay filler and cationic starch of a desired size.

REFERENCES:
patent: 3052595 (1962-09-01), Pye
patent: 3257267 (1966-06-01), Hay
patent: 3342732 (1967-09-01), Goetz
patent: 3873336 (1975-03-01), Lambert et al.
patent: 4115187 (1978-09-01), Davidson
Casey "Pulp & Paper", vol. II, (1960), pp. 1007-1009.

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