Process for the preparation of concentrated solutions of anionic

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

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8 1W, 8 39R, 8 41R, 8 42R, 8 76, 8 85B, 8 88, 8 89R, 8 92, 8 93, C09B 6700, D06P 1645

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active

040872459

ABSTRACT:
Stable, concentrated solutions of anionic dyestuffs are prepared by reacting the alkali metal or ammonium salts of anionic dyestuffs and brighteners, which are usually obtained from the industrial preparation process, in water-soluble organic solvents, optionally in the presence of water, with salts of nitrogen bases which impart hydrophilic properties, in accordance with the reaction equation

REFERENCES:
patent: 4005066 (1977-01-01), Gottschalk et al.

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