Dyeing and printing fibres

Details Dyeing and printing fibres Dyeing and printing fibres

D - Textiles, Paper

06

P

8/1, 402/364

D06P 1/52 (2006.01) C08G 12/02 (2006.01) D06L 3/12 (2006.01) D06M 15/37 (2006.01) D06P 1/54 (2006.01) D06P 3/60 (2006.01) D06P 5/08 (2006.01)

Patent

CA 1267490

150-4861 DYEING AND PRINTING FIBRES Abstract of the Disclosure Textile fibres, particularly cotton, are treated with polymeric cationic pretreatment agents to improve the colour yield and wet fastness properties of subsequent dyeing or printing. The polymeric pretreatment agent may be (A) the reaction product of a monofunctional or polyfunctional amine with dyanamide, dicyandiamide, guanidine or bis- guanidine or (B) the reaction product of (A) with (a) an N-methylol compound (b) an epihalohydrin (c) formaldehyde or (d) an organic compound containing at least two groups capable of being split off as anions on reaction with (A) or mixtures of these or (C) a mixture of i) the reaction product of (A) with (b) or with (c) and ii) an N-methylol compound (a), or mixtures of (A) with (B) and/or (C). The pretreatment process is such that at least 0.6% wt. of the pretreatment agent remains fixed on the fibres. The reaction products of (A) with (d) are novel.

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