| 摘要 |
PURPOSE:To provide a surface correcting liquid for photo-sensitive planographic plate not requiring wetting water which does not wear easily and whose ink repulsiveness is not likely to degradate by using a silicone rubber composition containing linear diorgano-polysiloxane and specific silane compound. CONSTITUTION:A planographic plate surface correcting liquid includes at least a silicone rubber composition, catalyst, and solvent, wherein the silicone rubber composition contains at least linear diorgano-polysiloxane and silane compound as given by formula. In formula, R1, R2, R3 represent alkylene radicals such as methylene radical, ethylene radical, propylene radical, butylene radical, bentylene radical, hexylene radical, cyclohexylene, while A1, A2, A3 represent alkoxy radicals such as methoxy radical, ethoxy radical, propoxy radical. Favorable examples of oxym radical are dimethyl ketoxym radical, diethyl ketoxym radical, etc. The resultant product gives good hardening speed, excels in adhesion with the plate surface, and presents good ink repulsiveness. |
