Water-soluble disazo dyestuffs, process for their...

Details Water-soluble disazo dyestuffs, process for their... Water-soluble disazo dyestuffs, process for their...

C - Chemistry, Metallurgy

09

B

260/164.1, 8/25.

C09B 31/04 (2006.01) C09B 31/047 (2006.01) C09B 43/132 (2006.01) D06P 1/06 (2006.01)

Patent

CA 1059998

WATER-SOLUBLE DISAZO DYESTUFFS, PROCESS FOR THEIR PREPARATION AND THEIR USE Abstract of the Disclosure: New water-soluble disazodyestuffs of the formula Image in which R1 and R2 are identical or different and each is hydrogen, methyl, ethyl or methoxy, and R3 is hydrogen, chlorine, nitro or alkyl of 1 to 4 carbon atoms, and their salts had been found which are very well suitable for dyeing of synthetic polyamides and yield dyeings on these fibers with good to very good wet fastnesses and fastnesses to processing and to use. Furthermore they possesss very good dyeing characteristics.

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