Method of deinking printed waste cellulosic stock

Details Method of deinking printed waste cellulosic stock Method of deinking printed waste cellulosic stock

1975-04-14

1976-10-19

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 8, D21C 502

Patent

active

039869229

ABSTRACT:
Printed waste cellulosic stock can be efficiently deinked by pulping the stock in the presence of based on the weight of the stock from 0.5 to 2% by weight of an alkali metal hydroxide and from 0.3 to 0.7% by weight of certain phosphate mono and diesters anionic surfactants.

REFERENCES:
patent: 3098784 (1963-07-01), Gorman
patent: 3122508 (1964-02-01), Grifo et al.
patent: 3354026 (1967-11-01), Illingsworth
patent: 3377234 (1968-04-01), Illingworth
patent: 3392083 (1968-07-01), Illingworth
patent: 3462520 (1969-08-01), Nehmsmann et al.

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