Stable aqueous liquid composition of reactive dyes...

Details Stable aqueous liquid composition of reactive dyes... Stable aqueous liquid composition of reactive dyes...

C - Chemistry, Metallurgy

09

B

8/1

C09B 67/26 (2006.01)

Patent

CA 1219406

ABSTRACT An aqueous, liquid fiber-reactive dye composition which is stable to decomposition is disclosed. The composition consists essentially of 5 to 45% by weight of a water-soluble, fiber-reactive dyestuff having from 1 to 3 .beta.-sulfatoethylsulfonyl (-SO2CH2CH2OSO3H) groups, or a mixture of such dyestuffs; 0 to 10% by weight of water-soluble inert inorganic salt; and 45 to 95% by weight of water. Said liquid dye composition must have a pH of about 2.5 to about 4.5 and must be substantially free of buffer substances. The liquid dye composition may be stored for long periods of time at 0° to 50°C with substantially reduced decomposition to the vinylsulfonyl dye form.

447917

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