| 摘要 |
A method for preparation of a waterless lithographic printing plate by an electrophotographic process comprising providing a peelable transfer layer (T) containing a thermoplastic resin (A) on a surface of an electrophotographic light-sensitive element, forming a non-fixing toner image by an electrophotographic process using a liquid developer on the transfer layer, transferring the toner image together with the transfer layer (T) from the electrophotographic light-sensitive element onto a primary receptor, transferring the toner image together with the transfer layer (T) from the primary receptor onto a support for lithographic printing plate, providing on the transfer layer (T) bearing the toner image a non-tacky resin layer having adhesion to the transfer layer (T) larger than adhesion between the toner image and the non-tacky resin layer, and selectively removing the non-tacky resin layer provided on the toner image. The method is suitable for a scanning exposure system using a laser beam of a low power, and simply and rapidly provides a waterless lithographic printing plate excellent in image qualities and printing durability.
|
