Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Patent
1983-04-25
1985-01-29
Tungol, Maria Parrish
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
8681, 8683, 8685, 8929, D06P 306, D06P 324
Patent
active
044963645
ABSTRACT:
A process for dyeing a voluminous flat form polyamide substrate with anionic dyestuffs according to the cold pad-batch method, which process comprises the step of selecting the initial pH of the dyeing liquor within a range depending on the affinity of the substrate for anionic dyestuffs and the molecular weight of the anionic dyestuffs so as to give a substantial linear exhaustion of the dyeing liquor, the dyeing liquor being free from a thickening, swelling or foaming agent.
REFERENCES:
patent: 3788807 (1974-01-01), Beiertz et al.
patent: 3912447 (1975-10-01), Schmidt
patent: 3953168 (1976-04-01), Fabbri et al.
patent: 4142852 (1979-03-01), Schuierer
patent: 4381186 (1983-04-01), Magni et al.
Doyle Thomas C.
Sandoz Ltd.
Sharkin Gerald D.
Tungol Maria Parrish
Vila Richard E.
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