| 摘要 |
A method of making a lithographic printing plate comprising the steps of:
a) providing a lithographic printing plate precursor comprising
(i) a support having a hydrophilic surface or which is provided with a hydrophilic layer,
(ii) a coating on said support, comprising a photopolymerizable layer, a toplayer and, optionally, an intermediate layer between the photopolymerizable layer and the support,
wherein said photopolymerizable layer comprises a polymerizable compound, a polymerization initiator and a binder,
b) image-wise exposing said coating in a plate setter,
c) optionally, heating the precursor in a preheating unit,
d) washing the precursor in a prewashing station by applying water or an aqueous solution to the coating, thereby removing at least part of the toplayer, and
e) developing the precursor in a gumming station by applying a gum solution to the coating of the precursor, thereby removing the non-exposed areas of the photopolymerizable layer from the support and gumming the plate in a single step. |
