Method for preparation of waterless lithographic printing plate

Details Method for preparation of waterless lithographic printing plate Method for preparation of waterless lithographic printing plate

1996-10-21

1997-08-19

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430126, G03G 1322, G03G 1332

Patent

active

056587015

ABSTRACT:
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.

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patent: 5501929 (1996-03-01), Kato et al.
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patent: 5561014 (1996-10-01), Kato
patent: 5582941 (1996-12-01), Kato et al.
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