Method for deinking

Details Method for deinking Method for deinking

1998-03-31

2000-06-20

Vincent, Sean

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 5, 252 60, 252 61, D21B 108

Patent

active

060773898

ABSTRACT:
A deinking method for obtaining regenerated pulp of high brightness is provided. One or more of deinking agents selected from (a-1) to (a-2) given below are used, and a deinking step is carried out, in which a washing step is carried out at treating temperatures from 40 to 80.degree. C.;

REFERENCES:
patent: 5665204 (1997-09-01), Rodriguez et al.
patent: 5718801 (1998-02-01), Li et al.
patent: 5786559 (1999-03-01), Srivatsa et al.

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