Polymerizable composition and lithographic printing plate precursor
AssigneeFUJIFILM Corporation
InventorAtsushi Sugasaki
Life of this patent
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Abstract
A lithographic printing plate precursor having a photosensitive layer containing (A) at least one saccharide selected from the group consisting of an oligosaccharide and a polysaccharide, (B) a binder polymer, (C) a compound having an addition polymerizable ethylenic unsaturated bond, and (D) a polymerization initiator, or a lithographic printing plate precursor having an undercoat layer comprising (A) at least one saccharide selected from the group consisting of an oligosaccharide and a polysaccharide, and a photosensitive layer containing (B) a binder polymer, (C) a compound having an addition polymerizable ethylenic unsaturated bond, and (D) a polymerization initiator.
Claims7
A lithographic printing plate precursor comprising:
- an aluminum support subjected to a surface roughening treatment;
- and a photosensitive layer formed from a polymerizable composition comprising:
- (A) at least one saccharide selected from the group consisting of an oligosaccharide and a polysaccharide, the polysaccharide containing an amino group, an alkylamino group, an acetylamino group, an ethyleneoxy group, a sulfonic acid group, a phosphoric acid group, a urethane group, a urea group, or a thiol group as a hydrophilic group;
- (B) a film-forming binder polymer which is not the at least one saccharide (A);
- (C) a compound having an addition polymerizable ethylenic unsaturated bond;
- (D) a polymerization initiator;
- and
- (E) a sensitizing dyestuff having an absorption maximum at a wavelength of from 300 to 600 mn.
A lithographic printing plate precursor comprising:
- a support;
- a layer comprising at least one saccharide selected from the group consisting of an oligosaccharide and a polysaccharide, wherein the polysaccharide has at least one substituent selected from the group consisting of a hydrophilic group and a salt of the hydrophilic group, wherein the hydrophilic group is selected from the group consisting of an amino group, an alkylamino group, an acetylamino group, an ethyleneoxy group, a sulfonic acid group, a phosphoric acid group, a urethane group, a urea group and a thiol group;
- and a photosensitive layer, in this order, wherein the photosensitive layer comprises:
- (B) a binder polymer having an ethylenic unsaturated double bond in a side chain of the binder polymer;
- (C) a compound having an addition polymerizable ethylenic unsaturated bond;
- (D) a polymerization initiator;
- and
- (E) a sensitizing dyestuff having an absorption maximum at a wavelength of from 300 to 600 nm.
Dependencies are inferred from the claim text.