| 摘要 |
PURPOSE:To provide a dye blend whose dyeing ability is greatly improved as compared with that of each dye alone and which dyes polyester fiber navy blue, by mixing a dis-azo dye with a monoazo dye. CONSTITUTION:The titled dye blend is obtd. by blending a dis-azo dye of formula I (wherein X is H, Cl, NO2, CF3; Y is CN, alkoxycarbonyl, etc.; Z is H, Cl, CH3, OH etc.; R<1>, R2 are each H, cyclohexyl, aryl, alkyl, etc. or substd. lower alkyl such as hydroxyl, lower alkoxy, halogen, cyano, alkenyloxy or tetrahydrofuryl-substd. lower alkyl) with a monoazo dye of formula II (wherein X<1> is NO2, CN; Y<1> is H, OCH3, etc.; R<5> is H, Cl, CH3 acetylamino, etc.; R<3>, R<4> are each H, aryl, alkyl, etc. or substd. lower alkyl such as hydroxyl, lower alkoxy, halogen, cyano, alkenyloxy or tetrahydrofuryl-substd. lower alkyl).
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