Method for preparing a lithographic printing plate and a light-s

Details Method for preparing a lithographic printing plate and a light-s Method for preparing a lithographic printing plate and a light-s

1987-01-16

1990-01-30

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

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

To produce printing surface

430 60, 430156, 430302, 430528, 430530, G03G 1328

Patent

active

048973297

ABSTRACT:
A method for preparing a lithographic printing plate and a light-sensitive material for a lithographic printing plate are disclosed. The method comprises providing a light-sensitive material comprising an electroconductive support having a hydrophilic surface. Provided on the surface is a light-sensitive layer which contains an electroconductive agent as well as a photoconductive insulating layer. The material is imagewise exposed and then electrophotographically processed to form an electrostatic latent image on the photoconductive insulating layer. The exposed material is developed with developer particles which are opaque to the light which the light-sensitive layer is sensitive. The light-sensitive layer of the developed material is exposed through the image. The exposed or unexposed areas of the light-sensitive layer are then removed together with the photoconductive insulating layer. The lithographic printing plate produced has excellent resolving power and does not cause printing stains.

REFERENCES:
patent: 3313626 (1967-04-01), Whitney
patent: 3862254 (1975-02-01), Wemmers
patent: 3944417 (1976-03-01), Lind
patent: 4288520 (1981-09-01), Sprintschnik
patent: 4336319 (1982-06-01), Nagashima et al.
patent: 4435491 (1984-03-01), Kitamura et al.
Kitamura et al., "High Speed Platemaking" by coupling of a conventional presensitized plate and an electrographic layer, Photo Sci. and Evl., vol. 26, No. 3, May/Jun. 1982, pp. 158-161.
Kitamura et al., "High Speed Platemaking" by coupling of a conventional presensitized plate and an electrographic layer (II), Electrophotography, vol. 2, No. 2, 1983, pp. 62-68.

Affiliated with

Also associated with

Rating

Method for preparing a lithographic printing plate and a light-s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing a lithographic printing plate and a light-s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing a lithographic printing plate and a light-s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1923155