Azodyes, process for their preparation and use thereof

摘要

Disazo dyes of formula (I) are new: R<1>-R<5> = H, 1-4 C alkyl, 1-4 C alkoxy or halogen; R<6> = H or 1-4 C alkyl; X = 1-4 C alkylene-(1-4 C)-alkylene; Y = H, 1-8 C alkyl, 2-4 C alkanoyl or 1-4 C alkoxycarbonyl, opt. substd. by OH or 1-4 C alkoxy, -CH2-CH=CH2, 1-4 C alkylsulphonyl or phenylsulphonyl, opt. substd. by 1-4 C alkyl, 1-4 C alkoxy or halogen. Prepn. of (I) is also claimed.