Bleaching and dyeing; fluid treatment and chemical modification – Dye concentrate composition wherein an additional amount of... – Highly viscous dye concentrate – e.g. – paste – etc.
Patent
1982-06-28
1984-05-22
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye concentrate composition wherein an additional amount of...
Highly viscous dye concentrate, e.g., paste, etc.
8527, 8552, 260158, D06P 6700
Patent
active
044499850
ABSTRACT:
Disclosed are compositions for use in preparing thickened thermosol dyeing baths or printing paste wherein natural or synthetic thickeners are employed, comprising an aqueous system of one or more substantially water insoluble dyes and from about 2 to about 12%, preferably from about 3 to about 10%, and most preferably 4 to about 8% by weight of polyvinyl alcohol (PVA). In general, the dyes useful in the present composition are disperse dyes as defined in the Color Index, 3rd Edition, as azo, anthraquinone, methine, nitroarylamine, and quinoline. Particularly useful are such dyes, for example, comprised of couplers selected from aniline, tetrahydroquinoline, benzomorpholine, and their known derivatives, and diazo components selected from phenyl, thiazolyl, isothiazole, thiadiazolyl, thienyl, benzothiazolyl, and benzisothiazolyl and their known derivatives. The present composition avoids problems associated with loss in viscosity as experienced when using ionic dispersing agents in thermosol dye baths and printing pastes.
REFERENCES:
patent: 3967922 (1976-07-01), Wolf et al.
Clingman A. Lionel
Eastman Kodak Company
Reece III Daniel B.
Spurrell Donald W.
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