Printing plate material, process of folding the same, and printing process
AssigneeKonica Minolta Holdings, Inc.
InventorsTakeshi Sampei, Saburou Hiraoka
Life of this patent
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Abstract
Disclosed are a printing plate material capable of being folded by heating, a printing process employing the printing plate material and a process of folding the printing plate material, the printing plate material comprising a support and provided thereon, an image formation layer, the support being a polyester sheet with a thickness dispersion of not more then 10%.
Claims23
A printing plate material comprising a support and provided thereon, an image formation layer, the support being a polyester film sheet with a thickness dispersion of not more than 10%, wherein the printing plate material is capable of being folded by heating.
A process of printing comprising the steps of:
- (a) forming an image on a printing plate material capable of being folded by heating comprising a support and provided thereon, an image formation layer, the support being a polyester film sheet with a thickness dispersion of not more than 10%, and the material being not subjected to wet development;
- (b) folding the resulting printing plate material at the edge portion by heating;
- (c) mounting the folded printing plate material on a plate cylinder of a printing press;
- and
- (d) removing the image formation layer at non-image portions of the printing plate material mounted on the plate cylinder.
A process of folding a printing plate material comprising a support and provided thereon, an image formation layer, the support being a polyester film sheet with a thickness dispersion of not more than 10%, the process comprising the step of:
- folding the printing plate material at the edge portion by heating.
Dependencies are inferred from the claim text.