Image recording material and lithographic printing plate precursor
AssigneeFuji Photo Film Co., Ltd.
InventorsTomotaka Tsuchimura, Ippei Nakamura, Tadahiro Sorori, Akihiro Endo, Tomoo Murakami
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Abstract
An image recording material comprising (a) an infrared ray absorber and (b) a polymer to lower a dynamic coefficient of friction to from 0.38 to 0.60, which can undergo image formation upon exposure with infrared laser; or a long-chain alkyl group-containing polymer having a reduction rate of coefficient of friction to a base polymer of from 0.5 to 0.97, the polymer being a copolymer of a long-chain alkyl group-containing monomer having 6 or more carbon atoms and a hydrophilic monomer.
Claims1
A lithographic printing plate precursor comprising a support and a recording layer, the recording layer comprising (a) an infrared ray absorber, (c) a water-insoluble and alkali-soluble resin, and (d) a polymer having a structural unit represented by the following formula (IV):
- wherein a bond represented by a broken line means that a methyl group or a hydrogen atom is present in an end terminal thereof,
- X represents a divalent linking group, Z′ represents a divalent hydrophilic group, m is from 0.2 to 0.95 and n represents an integer of from 6 to 40, a solubility of the recording layer in an alkaline aqueous solution increasing upon exposure with infrared laser.
Dependencies are inferred from the claim text.