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US 7,407,735 B2Granted
Light sensitive planographic printing plate precursor and its processing method
AssigneeKonica Corporation
InventorKazuhiko Hirabayashi
Life of this patent
Estimating the term…
Abstract
Disclosed are a light sensitive planographic printing plate precursor and its processing method, the precursor comprising a hydrophilic support and provided thereon, a photopolymerizable light sensitive layer containing a compound represented by the following formula (1) or (2) and a compound represented by the following formula (3) or (4):
Claims4
A light sensitive planographic printing plate precursor comprising a hydrophilic support and provided thereon, a photopolymerizable light sensitive layer containing a first compound represented by the following formula (1) or (2) and a sensitizing dye having an absorption maximum in the wavelength regions of from 350 to 450 nm,
- wherein Q1 represents
- or —S—;
- R4 represents an alkyl group, a hydroxy alkyl group, or an aryl group;
- R1 and R2 independently represent a hydrogen atom, an alkyl group, or an alkoxyalkyl group;
- R3 represents a hydrogen atom, a methyl group, or an ethyl group;
- x1 represents a divalent linkage group having a carbon atom number of from 2 to 12;
- x2 represents a divalent linkage group, a trivalent linkage group, a tetravalent linkage group, or
- in which Z represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a halogen atom, an alkoxy group, or a heterocyclic group, p is an integer of from 1 to 4, and q is an integer of from 1 to 3;
- D1 and D2 independently represent a divalent linkage group having a carbon atom number of from 1 to 5;
- E represents an alkylene group having a carbon atom number of from 2 to 12 or an arylene group having a carbon atom number of from 6 to 12;
- a is an integer of from 1 to 4;
- b is 0 or 1;
- c is an integer of from 1 to 3;
- m is an integer of from 2 to 4;
- and n is an integer of from 1 to m, provided that plural groups having the same definition may be the same or different,
- wherein Q2 represents
- R8 represents an alkyl group, a hydroxy alkyl group, or an aryl group;
- R5 and R6 independently represent a hydrogen atom, an alkyl group, or an alkoxyalkyl group;
- and R7 represents a hydrogen atom, a methyl group, or an ethyl group;
- D3 and D4 independently represent a divalent saturated hydrocarbon group having a carbon atom number of from 1 to 5;
- F represents an alkylene group having a carbon atom number of from 2 to 12 or an arylene group having a carbon atom number of from 6 to 12;
- d and e independently represent an integer of from 1 to 4;
- g is an integer of from 2 to 4;
- and f is an integer of from 1 to g, provided that plural groups having the same definition may be the same or different, and wherein the sensitizing dye is selected from the group consisting of compounds represented by the following formulae (5), and (8),
- wherein R14 represents a hydrogen atom, an alkyl group which may have a substituent, an alkenyl group which may have a substituent, an aryl group or a heterocyclic group;
- R15 and R16 represent a substituent capable of combining with each other to form a ring;
- and X11 and X12 independently represent —CR17R18—, —O—, —S—, or —NR19—, in which R17, R18, and R19 independently represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group,
- wherein X1, X2, X3, X4 and X5 independently represent a substituent;
- and Z represents an aryl group or an aromatic heterocyclic group.
26 more elements
A light sensitive planographic printing plate precursor comprising a hydrophilic support and provided thereon, a photopolymerizable light sensitive layer and a color layer in that order, the color layer having an optical density at wavelength regions of from 410 to 800 nm of from 0.2 to 3.0, and the photopolymerizable light sensitive layer containing a first compound represented by the following formula (1) or (2) and a sensitizing dye having an absorption maximum in the wavelength regions of from 350 to 450 nm,
- wherein Q1 represents
- or —S—;
- R4 represents an alkyl group, a hydroxy alkyl group, or an aryl group;
- R1 and R2 independently represent a hydrogen atom, an alkyl group, or an alkoxyalkyl group;
- R3 represents a hydrogen atom, a methyl group, or an ethyl group;
- X1 represents a divalent linkage group having a carbon atom number of from 2 to 12;
- X2 represents a divalent linkage group, a trivalent linkage group, a tetravalent linkage group, or
- in which Z represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a halogen atom, an alkoxy group, or a heterocyclic group, p is an integer of from 1 to 4, and q is an integer of from 1 to 3;
- D1and D2 independently represent a divalent linkage group having a carbon atom number of from 1 to 5;
- E represents an alkylene group having a carbon atom number of from 2 to 12 or an arylene group having a carbon atom number of from 6 to 12;
- a is an integer of from 1 to 4;
- b is 0 or 1;
- c is an integer of from 1 to 3;
- m is an integer of from 2 to 4;
- and n is an integer of from 1 to m, provided that plural groups having the same definition may be the same or different,
- wherein Q2 represents
- R2 represents an alkyl group, a hydroxy alkyl group, or an aryl group;
- R5 and R6 independently represent a hydrogen atom, an alkyl group, or an alkoxyalkyl group;
- and R7 represents a hydrogen atom, a methyl group, or an ethyl group;
- D3 and D4 independently represent a divalent saturated hydrocarbon group having a carbon atom number of from 1to 5;
- F represents an alkylene group having a carbon atom number of from 2 to 12 or an arylene group having a carbon atom number of from 6 to 12;
- d and e independently represent an integer of from 1 to 4;
- g is an integer of from 2 to 4;
- and f is an integer of from 1 to g, provided that plural groups having the same definition may be the same or different, and wherein the sensitizing dye is selected from the group consisting of compounds represented by the following formulae (5), (6), (7), and (8),
- wherein R14 represents a hydrogen atom, an alkyl group which may have a substituent, an alkenyl group which may have a substituent, an aryl group or a heterocyclic group;
- R15 and R16 represent a substituent capable of combining with each other to form a ring;
- and X11 and X12 independently represent —CR17R18—, —O—, —S—, or —NR19—, in which R17, R18, and R19independently represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group,
- wherein A represents an aryl group or a heterocyclic group;
- X represents an oxygen atom, a sulfur atom or —N (R13)—;
- and R11, R12 and R13 independently represent a hydrogen atom or a substituent, provided that A and R11 may combine with each other to form a condensed ring or R12 and R13 may combine with each other to form a ring,
- wherein R11, R12, R13, R14, R15, R16, R17, R18 and R19 independently represent a hydrogen atom or a substituent, provided that two adjacent groups of R11, R12, R13, R14, R15, R16, R17, R18 and R19 may combine with each other to form a ring, and at least one of R11 and R13 represents an organic residue represented by the following formula P,
- in which R10 represents a hydrogen atom or a substituent and Z represents a non-metallic atomic group necessary to form a 5-member acidic nucleus, and wherein when R11 is represented by formula P, R10 may combine with R12 or R19 to form a ring, when R13 is represented by formula P, R10 may combine with R12 or R14 to form a ring, and when R11 and R13 both are represented by formula P, R10 may combine with R14 or R19 to form a ring,
- wherein X1, X2, X3, X4 and X5 independently represent a substituent and Z represents an aryl group or an aromatic heterocyclic group.
30 more elements
Dependencies are inferred from the claim text.