Process for whitening polyester fibres by the exhaust method

Details Process for whitening polyester fibres by the exhaust method Process for whitening polyester fibres by the exhaust method

1980-03-17

1981-08-11

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

8643, 8648, 8675, 8922, 25230121, 25230127, 25230129, 25230134, C09K 1106

Patent

active

042831970

ABSTRACT:
A process for whitening polyester fibres with a fluorescent whitening agent for polyester and a shading dye by the exhaust method, said process being carried out in a dispersion of the fluorescent whitening agent having a pH value above 9, preferably between 11 and 13.5.

REFERENCES:
patent: 2930760 (1960-03-01), Gebhardt
patent: 3748093 (1973-07-01), Gangwisch et al.
patent: 3755201 (1973-08-01), Trimmer et al.

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