Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Depilating
Patent
1974-08-15
1977-03-01
Czaja, Donald E.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Depilating
8 88, 8173, D06P 1649, D06P 506
Patent
active
040099970
ABSTRACT:
A levelling auxiliary for dyeing fibrous material of polyamide fibers with acid dyes in the acid pH range in the presence of a mixture which contains (based on the solids in each case) from 30 to 90% by weight of a surfactant having sulfonic acid groups and from 10 to 70% by weight of an oxyethylated polyamide which has been prepared by the reaction of 1 part by weight of polyamide with from 2.5 to 3.5 parts by weight of ethylene oxide. Level dyeings devoid of streaks are obtained.
REFERENCES:
patent: 3232695 (1966-02-01), Robim et al.
patent: 3473956 (1969-10-01), McIntyre et al.
patent: 3619123 (1971-11-01), Walz et al.
Daeuble Manfred
Greif Norbert
Heinrich Hans
Vescia Michele
BASF - Aktiengesellschaft
Czaja Donald E.
Fletcher H. H.
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