| 摘要 |
PURPOSE:To enhance sensitivity and contrast and to provide the photosensitivity over a wide wavelength region by incorporating the arom sulfate of an onium compd. into the compsn. CONSTITUTION:A high-polymer compd. (e.g. cresol formaldehyde novolak resin) which is insoluble in water and is soluble in an aq. alkaline soln. and the arom. sulfonate of the onium compd. (e.g. the compd. of formula I) are incorporated into this compsn. In the formula, Ar<1>, Ar<2> denote an (un)substd. arom. group; X<-> denotes arom. sulfonic acid anion. The compd. of formula II, etc., are usable as the component of the formula. A coloring agent, surfactant, sensitizer, etc., may be added to the compsn. at need. |
