Method for treating textile fibre materials or leather

D - Textiles – Paper – 06 – P

Patent

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D06P 5/06 (2006.01) C11D 3/00 (2006.01) C11D 3/30 (2006.01) C11D 3/32 (2006.01) C11D 3/37 (2006.01) D06P 1/52 (2006.01) D06P 5/08 (2006.01) D06P 3/32 (2006.01)

Patent

CA 2412094

The present invention relates to a method for reducing dye loss or dye transfer from textile fibre materials or leather in the domestic sector, which comprises treating the textile fibre materials or the leather with a dye- fixing agent based on basic polycondensation products of an amine of formula (1) and a cyanamide, which polycondensation products are completely or partially neutralised with an inorganic or organic acid, R1, R2, R3 and R4 each independently of the others being hydrogen or alkyl that is unsubstituted or substituted by amino, hydroxy, cyano or by C1-C4 alkoxy and A being alkylene optionally substituted or interrupted by one or more hereto atoms. The present invention relates also to new formulations comprising the dye- fixing agent and to new dye-fixing agents.

L'invention concerne un procédé permettant de réduire la décoloration ou le transfert de couleurs à partir de matériaux en fibre textile ou du cuir, dans le secteur domestique. Ce procédé consiste à traiter les matériaux en fibre textile ou le cuir au moyen d'un agent pour le traitement subséquent des teintures à base de produits de polycondensation basiques d'une amine représentée par la formule (1) et d'une cyanamide, ces produits de polycondensation étant complètement ou partiellement neutralisés au moyen d'un acide inorganique ou organique. Dans ladite formule, R¿1?, R¿2?, R¿3? et R¿4? représentent chacun indépendamment hydrogène ou alkyle non substitué ou substitué par amino, hydroxy, cyano ou par alcoxy C¿1?-C¿4? et A représente alkylène éventuellement substitué ou interrompu par un ou plusieurs hétéroatomes. L'invention concerne également de nouvelles formulations comprenant ledit agent pour le traitement subséquent des teintures ainsi que de nouveaux agents pour le traitement subséquent des teintures.

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