Printing plate by laser transfer

Details Printing plate by laser transfer Printing plate by laser transfer

B - Operations, Transporting

41

M

42/5, 101/61

B41M 5/24 (2006.01) B41C 1/10 (2006.01) B41M 5/46 (2006.01)

Patent

CA 1038624

ABSTRACT OF THE DISCLOSURE A method of making an imaged printing plate, comprising the steps of directing laser energy through a transparent sub- strate having thereon a coating comprising particles which absorb said laser energy, a self-oxidizing binder and a cross-linking agent or a cross-linking agent in combination with a cross-linkable resin or a non-oxidizing polymeric material or resin, said coating being in intimate contact with a lithographic printing surface, thereby causing the coating to be selectively transferred from the film to the surface. Material is transferred by the laser beam from the trans- parent carrier film to a lithographic surface, thereby producing a planographic printing plate and a film having clear areas corres- ponding to the image on the plate.

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