Process of recovering fibres

Details Process of recovering fibres Process of recovering fibres

1979-05-22

1981-04-28

Smith, William F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 5, 162 6, D21C 502

Patent

active

042644127

ABSTRACT:
Fibre recovery process for pressure-sensitive carbonless copying paper which comprises defibrating the wastage in aqueous media, preferably in the presence of a cationic quaternary ammonium surface active agent, treating the wastage with acid to destroy the microcapsules, and bleaching the defibrated wastage with a bleaching agent.

REFERENCES:
patent: 3933578 (1976-01-01), Kasugai et al.

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