| 摘要 |
PURPOSE:To make it possible to dye a cellulosic material in a blue color good in color value, build-up property and various fastnesses with a highly compound by using a formazan compound of a specified formula. CONSTITUTION:A cellulosic material (e.g., cotton, rayon, paper or pulp) is dyed with a formazan compound of formula I [wherein R is H, SO3H, OH, Cl, OCH3, COOH, CH3 or C2H5, and X is formula II (wherein Y is formula III, IV, V or the like), formula VI (wherein Y is as defined above, Q is formula VII, VIII, IX or the like] (e.g., a compound of formula X). It is possible to dye a cellulosic material in a blue color good in color value, build-up property and fastnesses with a compound which is highly safe unlike a conventional dianisidine compound or the like. |
