Process for the dyeing or printing of polyester fibers

Details Process for the dyeing or printing of polyester fibers Process for the dyeing or printing of polyester fibers

D - Textiles, Paper

06

P

8/18

D06P 1/20 (2006.01) C09B 1/20 (2006.01) C09B 1/51 (2006.01)

Patent

CA 1103406

Abstract of the disclosure: In the process for the pad-dyeing or printing of materials consisting of, or containing, polyester or polyamide fibers or filaments, in which process the materials are padded or printed in common manner with aqueous baths or printing pastes of disperse dyestuff, and the dyestuffs are subsequently fixed by the action of liquid or gaseous methylene chloride or both of the said phases of methylene chloride, the improve- ment that use is made of a dyestuff of the general formula (1) Image (1) in which R1 represents -NH2, -NH-CH2-CH2-OH, R2 represents hydrogen, alkyl of from 1 to 3 carbon atoms or -(CH2)n-OH, in which n stands for an integer of from 1 to 3, or phenyl, R3 represents hydrogen, Image , Image , Image or Image , R4 stands for -OH, -NH2 or Image , and R5 represents -OH or -NO2, or of the general formula (2) Image (2) in which R'1 stands for -OH or Image , R' 2 for Image , R3 is defined as in formula (1) above, R'4 stands for -OH, -NH2 or Image , and R'5 for -OH or -NO2. - 1a -

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