Process for the after-bleaching of dyed raw cellulose using cati

Details Process for the after-bleaching of dyed raw cellulose using cati Process for the after-bleaching of dyed raw cellulose using cati

1992-09-03

1994-12-13

Richter, Johann

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8102, D06L 302

Patent

active

053726103

ABSTRACT:
Dyed raw cellulose can be bleached in a bleaching and after-treatment bath containing, in addition to usual stabilizers, cationic-monomeric and/or polymeric compounds and, if desired, nonionic surfactants. Bleaching is carried out with the aid of aqueous-hydrogen peroxide. The stabilizers that can be used and the cationic compounds are defined in the specification. Nonionic tensides, if their co-use is desired, are those of the class polyglycolethers.

REFERENCES:
patent: 3996151 (1976-12-01), Kirner
patent: 4510068 (1985-04-01), Rohlfs et al.
patent: 4515596 (1985-05-01), Berendt et al.
patent: 4880566 (1989-11-01), Baehr et al.
patent: 4959075 (1990-09-01), Baehr et al.
patent: 5180514 (1993-01-01), Farr et al.

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