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US07767380B2 Photopolymerization type photosensitive lithographic printing plate precursor 有权
光聚合型光敏平版印刷版前体

Photopolymerization type photosensitive lithographic printing plate precursor
Abstract:
A negative-working photopolymerization type photosensitive lithographic printing plate precursor capable of conducting image recording with laser, includes: a hydrophilic support; a photopolymerizable photosensitive layer containing (i) a sensitizing dye having an absorption maximum in a wavelength range of from 360 to 450 nm, (ii) a hexaarylbiimidazole compound and (iii) an addition polymerizable compound having an ethylenically unsaturated double bond; and a protective layer, in this order, wherein the protective layer has oxygen permeability at 25° C. under one atmosphere of from 25 ml/m2·day to 200 ml/m2·day.
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