Wet transfer process

Details Wet transfer process Wet transfer process

1977-12-19

1979-05-22

Levin, Stanford M.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 25A, D06P 302, D06P 304, D06P 314, D06P 324

Patent

active

041557077

ABSTRACT:
A wet transfer process for dyeing and printing synthetic and natural nitrogenous material by applying to an inert support a printing ink which contains at least one dye and/or fluorescent brightening agent, a binder or thickener, water and/or an organic solvent, and drying said ink, then bringing the treated side of the support into contact with the surface of the material to be dyed which has been pretreated with an aqueous solution or emulsion, subsequently subjecting support and material, with or without mechanical pressure, to a heat treatment of 100.degree. to 130.degree. C., preferably 105.degree. to 120.degree. C., for 1 to 100 seconds, preferably 20 to 60 seconds, and then separating the dyed or printed material from the support, which process comprises the use of a hydrophobic inert support which contains at least one non-sublimable dye having fibre affinity, and pretreating the synthetic and natural nitrogenous fibrous material with an aqueous, thickened solution or emulsion which contains a coacervating agent and an acid or an acid donor.

REFERENCES:
patent: 3730676 (1973-05-01), Smith et al.
patent: 3792968 (1974-02-01), Rickenbacher et al.

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