Stable concentrated solutions of dyestuffs containing...

Details Stable concentrated solutions of dyestuffs containing... Stable concentrated solutions of dyestuffs containing...

D - Textiles, Paper

06

P

8/50

D06P 1/00 (2006.01) C09B 67/26 (2006.01) D06P 3/06 (2006.01) D06P 3/32 (2006.01) D06P 3/82 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1060603

STABLE CONCENTRATED SOLUTIONS OF DYESTUFFS CONTAINING SULFONIC ACID GROUPS, PROCESS FOR PREPARING THEM AND THEIR USE Abstract of the disclosure: A stable concentrated solution of a dyestuff consisting of 10 to 80 percent by weight of a dyestuff containing 1 to 3 sulfonic acid groups, in form of the free acid of a salt, 10 to 82 percent by weight of water and 8 to 80 percent by weight of .epsilon.-caprolactame, the said solution being suitable for the preparation of dyeing liquors or printing pastes for the dye- ing or printing of native or synthetic polyamide fibre materials and for the coloring of paper.

241447

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