| 摘要 |
The invention relates to dyestuff preparations which contain A. DYESTUFFS WHICH ARE INSOLUBLE IN TETRACHLOROETHYLENE, B. DISPERSING AGENTS OF THE FORMULA R1[-NHCO-(O-CHR2-CHR3)X-(O-CHR4-CHR5)y-R6-]n WHEREIN R1 denotes a hydrocarbon radical such as remains after removing n isocyanate groups from a corresponding isocyanate, N IS A NUMBER FROM 1 TO 6 R2 - R5 denote hydrogen, alkyl, phenyl or chloromethyl, X represents the number 0 - 100 and Y represents the number 0 to 50 and R6 denotes O-aryl, O-aralkyl, O-alkaryl, O-CO-alkyl, O-CO-aryl, NH-CO-alkyl, NH-SO2 -alkyl or O-alkyl and C. OPTIONALLY, ORGANIC SOLVENTS OF LOW VOLATILITY. The preparations are extremely suitable for the dyeing textile materials from organic, water-immiscible solvents.
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