Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Basic dye containing strongly basic onium or alkylene imine...
Patent
1995-07-12
1997-10-07
Einsmann, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Basic dye containing strongly basic onium or alkylene imine...
8654, 8687, 8688, 8919, D06P 141, D06P 358, C09B 4400
Patent
active
056742991
ABSTRACT:
The cationic or basic dyes of formulae (1) and (2) cited in claim 1 are particularly suitable for dyeing paper.
These dyes dye paper in a yellow, orange or brown shade having good fastness properties.
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patent: 4211697 (1980-07-01), Desai
patent: 4213897 (1980-07-01), Moser et al.
patent: 4940783 (1990-07-01), Stingelin
Ciba-Geigy Corporation
Dohmann George R.
Einsmann Margaret
Mansfield Kevin T.
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