Plate-making method of lithographic printing plate

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates

Reexamination Certificate

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C430S278100, C430S281100, C430S282100, C430S283100, C430S284100, C430S286100, C430S287100, C430S288100, C430S309000, C430S401000, C430S435000, C430S494000

Reexamination Certificate

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06841336

ABSTRACT:
A plate-making method of a lithographic printing plate comprising exposing imagewise a photosensitive lithographic printing plate comprising an aluminum support and a photosensitive layer comprising a photosensitive composition of photopolymerization type, which contains a compound having a nitrogen atom and an ethylenically unsaturated double bond, a photopolymerization initiator and a polymer binder, and developing the exposed printing plate with a developing solution containing (1) an inorganic alkali agent and (2) a nonionic surface active agent having a polyoxyalkylene ether group.

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