Process for printing with developing dyes which employs having e

Details Process for printing with developing dyes which employs having e Process for printing with developing dyes which employs having e

1978-11-06

1980-04-01

Person, Sandra M.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 71, C09B 2700, D06P 112

Patent

active

041959736

ABSTRACT:
o-Aminophenol ethers deriving from lower alkylene glycols, lower alkylene polyglycols and the corresponding mono-lower alkyl ethers which may be substituted in the phenyl nucleus by halogen or nitro, are useful as diazo components in the "all-in" printing process for preparing developing dyes on cellulose. In this process the printing paste contains the alkaline solution of the coupling component, a dispersion of the amine, sodium nitrite and a thickening composition and developing of the dye is brought about with acidic means, followed by or combined with a heat treatment.

REFERENCES:
patent: 2845326 (1958-07-01), Streck
patent: 3000298 (1961-09-01), Bryant
patent: 3920386 (1975-11-01), Beyer et al.
patent: 4094637 (1978-06-01), Feess et al.

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