| 摘要 |
<p>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 improvement that use is made of a dyestuff of the general formula (1) (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, , , or , R4 stands for -OH, -NH2 or , and R5 represents -OH or -NO2, or of the general formula (2) (2) in which R'1 stands for -OH or , R' 2 for , R3 is defined as in formula (1) above, R'4 stands for -OH, -NH2 or , and R'5 for -OH or -NO2. - 1a</p> |
