| 摘要 |
PURPOSE:To obtain a lithographic material superior in ink receptivity, etc., by forming on a support an antihalation layer contg. an aldehyde hardening agent, next, a silver halide emulsion layer contg. no hardening agent, and finally, a physical development nuceus layer contg. said aldehyde type hardening agent. CONSTITUTION:An antihalation layer contg. photographic filter dye or antihalation dye and a hydrophilic binder, such as gelatin, and an aldehyde type hardening agent, such as formaldehyde or glyoxal, is formed on a support. Next, a silver halide emulsion layer contg. no hardening agent is formed on the antihalation layer. An intended lithographic material is obtained by finally forming a physical development nucleus layer contg. Sb or Bi or the like for forming said nucleus, and further, a hydrophilic binder and said aldehyde type hardening agent on the emulsion layer. |
