Method of treating natural or synthetic polyamide fibre...

Details Method of treating natural or synthetic polyamide fibre... Method of treating natural or synthetic polyamide fibre...

D - Textiles, Paper

06

P

D06P 5/00 (2006.01) D06M 15/263 (2006.01) D06P 5/08 (2006.01)

Patent

CA 2271873

A method of improving the stability to ozone exposure of dyes on natural or synthetic polyamide fibre materials comprises treating the fibre material, before, during or after dyeing, with a liquor comprising a homopolymer or copolymer having structural repeating units of formula (1) (see formula I) in which R1 is unsubstituted or substituted C1-C4alkyl. The resulting dyeings and prints feature improved ozone fastness with no effect on hue, colour yield and other fastness properties such as light fastness, for instance.

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