Reactive dyeing system and xylylene diphosphonic acid dyes

Details Reactive dyeing system and xylylene diphosphonic acid dyes Reactive dyeing system and xylylene diphosphonic acid dyes

D - Textiles, Paper

06

P

8/30

D06P 1/38 (2006.01) C07F 9/12 (2006.01) C07F 9/38 (2006.01) C09B 1/32 (2006.01) C09B 1/34 (2006.01) C09B 1/42 (2006.01) C09B 29/00 (2006.01) C09B 67/26 (2006.01) C09B 69/00 (2006.01) D06P 1/22 (2006.01) D06P 1/384 (2006.01) D06P 1/642 (2006.01) D06P 3/68 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1090054

ABSTRACT OF THE DISCLOSURE Phosphorus acid substituted chromo- phores are reactively linked to cellulose fibers by means of a phosphorus ester link produced in the presence of a carbodiimide such as cyanamide, dicyandiamide or an alkyl substituted cyanamide or dicyandiamide. Also disclosed are novel xylylene diphosphonic acid dyestuffs of the general formula: Image where Dye is a chromophore and dyestuffs of the general formula Image where R is hydrogen or lower alkyl, and Dye is a chromophore,

219183

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