Process for the deinking of cellulosic materials

Details Process for the deinking of cellulosic materials Process for the deinking of cellulosic materials

1988-12-06

1990-06-19

Bascomb, Wilbur

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162158, 162DIG3, D21C 502

Patent

active

049350960

ABSTRACT:
An improved method for deinking waste printed, cellulosic fibrous materials which includes the addition of ionic surfactants either alone or in combination with non-ionic surfactants. The ionic surfactants are anionic, cationic or amphoteric.

REFERENCES:
patent: 2487899 (1949-11-01), Sherman
patent: 2753309 (1956-07-01), Figdor
patent: 3072521 (1963-01-01), Samuelson et al.
patent: 3377234 (1968-04-01), Illingworth
patent: 3446696 (1969-05-01), Illingworth
patent: 3808089 (1974-04-01), Von Koeppen et al.
patent: 4264412 (1981-04-01), Hasler et al.
patent: 4360439 (1982-11-01), Calmanti et al.
patent: 4529447 (1985-07-01), Okada et al.

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