Lithographic printing plate precursor and method of use
AssigneeEastman Kodak Company
InventorsYasushi Miyamoto, Masamichi Kamiya, Maru Aburano, Jeremy Marc Yatvin
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AssigneeEastman Kodak Company
InventorsYasushi Miyamoto, Masamichi Kamiya, Maru Aburano, Jeremy Marc Yatvin
Estimating the term…
A lithographic printing plate precursor has an infrared radiation-sensitive image-recording layer containing an IR absorber, and an ozone-blocking material of 1500 or less molecular weight and has structure (I), (II), or (III): wherein R is a hydrocarbon having 14-30 carbon atoms; m is 1 or 2; n is 1-6; the sum of m and n is >2 and <8; and A is a multivalent organic moiety free of R and OH groups and has a valence m+n; wherein R1 and R2 are alkyl groups of 14-22 carbon atoms, and o is 1-3; R3C(═O)NR4R5 (III) wherein R3 is an alkenyl with a C═C bond within a carbon-carbon chain of 16-30 carbons, and R4 and R5 are hydrogen or unsubstituted alkyls of 1-4 carbon atoms. Such ozone-blocking materials can be used to protect infrared radiation-sensitive dyes that may be degraded by ozone and thus improve imaging sensitivity.
A negative-working lithographic printing plate precursor comprising a substrate, and an outermost negative-working infrared radiation-sensitive image-recording layer disposed on the substrate,
Dependencies are inferred from the claim text.