| 摘要 |
PURPOSE:To prevent halogenated lower hydrocarbon as a washing liq. from being colored by using a specified syryl dye in an antihalation layer. CONSTITUTION:An antithalation layer is formed on one side of a support with an alkali soluble resin contg. a dispersed syryl dye having a benzothiazole ring represented by the general formula[where each of A, R3 and R4 is H, halogen, cyano, lower alkyl, lower alkenyl, lower alkoxy, amino, aryl or the like, L is methine, R1 is lower alkyl or aryl, R2 is -OR5 or -NR6R7 (R5 is H or lower alkyl, and each of R6 and R7 is H, lower alkyl, cycloalkyl or aryl), R is lower alkylene, p is 1 or 2, and X is an acid anion]. The antihalation layer withstands washing for removing fat and oil, dust, etc. |
