Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1973-10-31
1976-09-14
Cockeram, H.S.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 93, 8173, 8177AB, D06P 141, D06P 164, D06P 1653
Patent
active
039804283
ABSTRACT:
The present invention relates to a process for dyeing or printing organic substrates in the presence of lactone, the amount of which is sufficient to adjust the pH value of the dyeing or printing medium from a neutral or basic value to a value from 4.0 to 6.5.
REFERENCES:
patent: 2950949 (1960-08-01), Schlack
patent: 3346322 (1967-10-01), Finkenauer
patent: 3909192 (1975-09-01), Gertisser
Hannay et al., Jour. Soc. Dyers and Colorists, June 1953, pp. 195-201.
Fabbri Sergio
Frauenknecht Josef
Cockeram H.S.
Doyle Thomas C.
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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