Process for the level dyeing of wool

Details Process for the level dyeing of wool Process for the level dyeing of wool

1973-09-06

1976-02-10

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 17, 8 41R, 8 54, C09B 100, C09B 562, D06P 314

Patent

active

039376117

ABSTRACT:
Process for the level dyeing of wool, having an anti-felting finish consisting of a coating layer of polyimine or polyamine resin, with reactive dyestuffs, which is carried out according to a graduated temperature exhaustion method from an aqueous liquor using one or several reactive dyestuffs of the formulae ##SPC1##
In which F stands for a dyestuff radical having at least 2 sulfonic acid groups linked to an aromatic radical of the chromophore, Z stands for a reactive group of the vinylsulfone, vinylsulfonamide or acrylamide type, n is 1 or 2, and R and R.sub.1 each stands for hydrogen atoms or lower alkyl radicals, in the absence of adjuvants and/or without any pretreatment of the material to be dyed.

REFERENCES:
patent: 2131121 (1938-09-01), Schlack
patent: 2817602 (1957-12-01), Pardo, Jr.
patent: 3150916 (1964-09-01), Karacsonyl et al.
Lewis and Seltzer, J. Soc. Dyers and Colourists, 1972, 88 (3), 93-100.
VONDER Eltz, Textilveredlung, 1972, 7 (5), 297-307.
"Fiber-Reactive Dyes" by W. F. Beech, (Logos Press, London, 1970), pp. 243-268.
"Wool--Its Chemistry and Physics" by Alexander and Hudson (Reinhold, New York-1954), p. 324.

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