Process for dyeing synthetic polyamide fibre materials

Details Process for dyeing synthetic polyamide fibre materials Process for dyeing synthetic polyamide fibre materials

D - Textiles, Paper

06

P

8/50, 8/31.07

D06P 1/39 (2006.01) D06P 1/607 (2006.01) D06P 1/62 (2006.01) D06P 3/24 (2006.01)

Patent

CA 1112812

ABSTRACT OF THE DISCLOSURE In a process for dyeing synthetic polyamide fibre materials with metal-free acid dyestuffs a dye liquor is used which comprises an aqueous dye liquor for use when dyeing synthetic polyamide fibre materials, comprising water, at least two metal-free acid dyestuffs, a cationic compound of the formula Image wherein R1 represents an alkyl or alkenyl radical with 12-22 carbon atoms, R2 represents hydrogen or methyl, m represents 0 or 1, n represents 2 or 3 and the sum of x + y + z represents a number from 10-30, and an anionic compound of the formula Image wherein R3 represents a substituted alkyl radical with 10-14 carbon atoms, said cationic and anionic compounds being present in the dye liquor in a molar ratio of 0.6:1 to 1:0.6.

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