| 摘要 |
PROBLEM TO BE SOLVED: To uniformly develop the entire surface of a planographic printing plate and to enable the development small in a low temperature processing dependency without lowering partial print resistance or ink acceptability by making an amine oxide surfactant contain in a developer. SOLUTION: In the case of development processing to utilize a silver complex salt diffusion transfer method for developing a planographic printing plate by applying a developer, at least one kind of an amine oxide surfactant is made to contain in that developer. In this case, an application processing method is a method for supplying, applying and developing the required developer to photosensitive materials and they are a liquid-up application system, a dripping roller application system, a dripping knife application system, a spray application system and a brush application system, for example, but this method is not limited to these systems. Then, as of this developing processing method, for example, after the developer is applied to the planographic printing plate, the developer on the surface of the plate is removed by a squeeze roller or the like. Then, the plate is washed with a neutralizer or water for lowering pH on the surface of the plate as needed and further, the plate making is completed through a drying process in an automatic plate making machine or the like. |
