Method of recovering pressure sensitive copying paper waste pape

Details Method of recovering pressure sensitive copying paper waste pape Method of recovering pressure sensitive copying paper waste pape

1974-05-30

1976-01-20

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

039335780

ABSTRACT:
A method of recovering waste paper of a pressure sensitive copying paper which comprises, in the defibration processing for regenerating the waste paper, using an alkaline solution containing a surface active agent. This method provides a white pulp which is hardly stained.

REFERENCES:
patent: 3072521 (1963-01-01), Samuelson et al.
patent: 3179555 (1965-04-01), Krodel
patent: 3330722 (1967-07-01), Amano et al.
patent: 3354026 (1967-11-01), Illingworth
patent: 3377234 (1968-04-01), Illingworth
"Abstract Bulletin of Institute of Paper Chemistry," Vol. 40, No. 3, Sept., 1969, Abstracts 388, 2150.

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