Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1975-09-02
1977-03-15
Warren, Charles F.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
260146R, 260156, 260194, 260195, 260196, 260197, 260198, 260199, 260202, 260204, 260205, 260206, 260207, 2602071, 260240G, 8 31, C09B 3114, C09B 4548
Patent
active
040121933
ABSTRACT:
Bisazomethine dyes of the general formula: ##STR1## in which A and D are optionally substituted benzene or naphthalene nuclei, E is an optionally substituted salicylaldehyde or o-hydroxynaphthaldehyde nucleus and G is an optionally substituted 2-aminopyridine nucleus. Metal-modified polypropylene dyed with the bisazomethine dye has excellent fastness properties.
REFERENCES:
patent: 3391132 (1968-07-01), Beffa et al.
patent: 3617179 (1971-11-01), Lewis
American Color & Chemical Corporation
Warren Charles F.
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