Lithographic printing plate precursor and use
AssigneeEastman Kodak Company
InventorsMasamichi Kamiya, Yuuki Torihata, Akira lgarashi, Koji Hayashi, Jianbing Huang
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AssigneeEastman Kodak Company
InventorsMasamichi Kamiya, Yuuki Torihata, Akira lgarashi, Koji Hayashi, Jianbing Huang
Estimating the term…
A lithographic printing plate precursor has a substrate comprising a hydrophilic surface and two opposing edges; a radiation-sensitive imagable layer, and optionally, a protective layer disposed over that layer. The precursor has a shear droop at each opposing edge, each shear droop having a shear droop depth Y of 20-200 μm and a shear droop width X of 500-2000 μm. The precursor also has a hydrophilic coating band extending from each of the two opposing edges inwardly along the hydrophilic surface independently to provide a hydrophilic coating band width A of at least 1.5 times the shear droop width X. This hydrophilic coating band comprises amphoteric surfactant(s) in an amount greater than all other surfactants. Such individual precursors are obtained by cutting a continuous radiation-sensitive web into strips and such cutting creates the shear droop that can result in edge staining if the hydrophilic coating band is not present.
A negative-working lithographic printing plate precursor comprising:
Dependencies are inferred from the claim text.