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
1987-06-08
1988-08-23
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Basic dye containing strongly basic onium or alkylene imine...
8527, 8607, 8614, 8623, 8627, 8634, 8635, 8655, 8657, 8659, C09B 6732
Patent
active
047657979
ABSTRACT:
Liquid formulations of mixtures of cationic dyes frequently have a very short storage life. As a consequence, these formulations give rise to customer complaints concerning incorrect dyeing strengths and hues and concerning isoluble constituents. It has now been found according to the invention that powder formulations and in particular liquid formulations of cationic dyes or of mixtures of these dyes can be stabilized by adding selected oxidizing agents.
REFERENCES:
patent: 3922445 (1975-11-01), Mizuno et al.
Hahnke Manfred
Hohmann Kurt
Ong Sierling
Clingman A. Lionel
Hoechst Aktiengesellschaft
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