Process and composition for deinking dry toner electrostatic pri

Details Process and composition for deinking dry toner electrostatic pri Process and composition for deinking dry toner electrostatic pri

1991-04-25

1992-08-25

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 4, D21C 502

Patent

active

051415984

ABSTRACT:
A composition and method for deinking dry toner electrostatic printed wastepaper is disclosed. The composition comprises a combination of: (1) aliphatic petroleum distillates, (2) an alkylphenoxypoly-(ethyleneoxy) ethanol, and (3) an ethoxylated polyoxypropylene glycol.
The method comprises administering a sufficient amount of this combination to a sample of electrostatic printed wastepaper for which treatment is desired.

REFERENCES:
patent: 3635789 (1972-01-01), Green
patent: 4162186 (1979-07-01), Wood et al.
patent: 4276118 (1981-06-01), Quick
patent: 4518459 (1985-05-01), Freis et al.
patent: 4561933 (1985-12-01), Wood et al.
patent: 4666558 (1987-05-01), Wood et al.
patent: 4820379 (1989-04-01), Darlington
Darlington, W. B., "A New Process for Deinking Electrostatic-Printed Secondary Fiber", TAPPI Proceedings, 1988 Pulping Conference, pp. 95-100.

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