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

1983-03-03

1985-02-19

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

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

To produce printing surface

430302, G03G 1326

Patent

active

045006172

ABSTRACT:
A method for preparing a lithographic printing plate and the light-sensitive material for lithographic printing plates are disclosed. The method is comprised of providing a light-sensitive material which is comprised of an aluminum or aluminum alloy support having provided thereon a hydrophilic surface layer of aluminum oxide in an amount of 0.2 to 2.8 g/m.sup.2, having provided thereon a light-sensitive layer and a photoconductive insulating layer which may be present in separate layers in this order or combined in a single layer. The material thus-provided is imagewise exposed and then electrophotographically processed in order to form an electrostatic latent image on the photoconductive insulating layer. Development of the electrostatic latent image is then carried out with developer particles which are opaque to light to which the light-sensitive layer is sensitive. The light-sensitive material is then exposed through the developed image and the exposed or unexposed areas of the light-sensitive layer are removed by themselves or in combination with the photoconductive insulating layer. The lithographic printing plate prepared by the exposed method has excellent resolving power and does not cause printing stains.

REFERENCES:
patent: 2939787 (1960-06-01), Giaimo
patent: 4229266 (1980-10-01), Usbeck
patent: 4254196 (1981-03-01), Seeley et al.

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-613425