Process for oxidizing sulfur dyes

Details Process for oxidizing sulfur dyes Process for oxidizing sulfur dyes

1975-10-16

1977-07-19

Wong, Jr., Harry

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 21A, 8 21B, 8 21C, 8 542, C09B 4900, D06P 130

Patent

active

040365867

ABSTRACT:
A process for oxidizing sulfur dyes on cellulosic fibers by contacting said fibers containing said dye in a reduced state with an aqueous hydrogen peroxide oxidizing bath solution comprising 0.01 to 0.20 grams of a soluble copper salt per liter of solution and an inhibitor to prevent excessive decomposition of the peroxide.

REFERENCES:
patent: 3278254 (1966-10-01), Chadwick et al.
patent: 3649194 (1972-03-01), Glanville
patent: 3864271 (1975-02-01), Stalter
W. C. Schumb et al., "Hydrogen Peroxide" (Reinhold, New York,) 1955, pp. 467-471.

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