Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1975-03-28
1977-08-30
Kight, III, John
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 81, 210 28, 210 40, 210 42R, 210 59, 210 60, 210 62, D06P 510
Patent
active
040451712
ABSTRACT:
A process is disclosed for the removal of colorants from industrial dye waste solutions which involves the treatment of the waste with a solution of a Group IA or IIA metal halide or sulfate to precipitate the colorant, which subsequently is removed by common solid separation techniques as a dense material of relatively high solids content. The process is particularly suitable for integration into a dyeing process to increase color fastness of the dyed article.
REFERENCES:
patent: 3502577 (1970-03-01), Hutchins et al.
patent: 3829380 (1974-08-01), Oohara
patent: 3944383 (1976-03-01), Davis
patent: 3947248 (1976-03-01), Powers
Brennan Bryant W.
Dart Industries Inc.
Kight III John
LeMaire Margareta
Valles Fred S.
LandOfFree
Treatment of dye wastes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Treatment of dye wastes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of dye wastes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-959783