Monoazo dyestuff being stable under dyeing conditions; its manuf

Details Monoazo dyestuff being stable under dyeing conditions; its manuf Monoazo dyestuff being stable under dyeing conditions; its manuf

1980-05-23

1982-03-16

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, C09B 6700, D06P 6702

Patent

active

043198805

ABSTRACT:
The invention relates to a novel crystallographic modification (".beta.-modification") being stable under dyeing conditions of the dyestuff of the formula ##STR1## which is characterized by an X-ray diffraction pattern as shown in FIG. 1 with characteristic reflexes at the following glance angles .theta. (CuK.sub..alpha. radiation) with the relative intensities:

REFERENCES:
patent: 2007382 (1935-07-01), Ockman et al.
patent: 3407189 (1968-10-01), Merian
patent: 4074965 (1978-02-01), Kruse et al.
Samoilova, G. V. et al., Chemical Abstracts, 1979, 90, (No. 16), 123029g.

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