Disperse dye stable to dyeing, and its use for dyeing and printi

Details Disperse dye stable to dyeing, and its use for dyeing and printi Disperse dye stable to dyeing, and its use for dyeing and printi

1980-12-31

1982-06-01

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dry dye composition other than mere mixture of two or more...

Dye in specified form other than mere powder

8662, 2602075, 260208, D06P 6702, C09B 2700

Patent

active

043325882

ABSTRACT:
By the slow stepwise heating up of an aqueous suspension of the crystallographically amorphous dye of the formula ##STR1## which dye is unstable to dyeing, to a temperature of 90.degree.-100.degree. C. with a halting point at 40.degree.-60.degree. C., this dye can be transformed completely into the crystalline .alpha.-modification.
The novel dye modification can be easily converted, without increase of viscosity, into thinly liquid formulations which are readily pourable, which form no sediment, and which are excellently suitable for producing printing pastes, for example for printing polyester fabric.

REFERENCES:
patent: 2007382 (1935-07-01), Ockman et al.
patent: 3407189 (1968-10-01), Merian
patent: 4074965 (1978-02-01), Kruse et al.
patent: 4099909 (1978-07-01), Koller et al.

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