EP2471654B1 - Lithographic printing plate precursor, plate making method thereof and lithographic printing method thereof - Google Patents

Lithographic printing plate precursor, plate making method thereof and lithographic printing method thereof Download PDF

Info

Publication number
EP2471654B1
EP2471654B1 EP20110191693 EP11191693A EP2471654B1 EP 2471654 B1 EP2471654 B1 EP 2471654B1 EP 20110191693 EP20110191693 EP 20110191693 EP 11191693 A EP11191693 A EP 11191693A EP 2471654 B1 EP2471654 B1 EP 2471654B1
Authority
EP
European Patent Office
Prior art keywords
group
lithographic printing
printing plate
plate precursor
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20110191693
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2471654A2 (en
EP2471654A3 (en
Inventor
Mayuko Kanehisa
Hidekazu Oohashi
Ichiro Koyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
Original Assignee
Fujifilm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Publication of EP2471654A2 publication Critical patent/EP2471654A2/en
Publication of EP2471654A3 publication Critical patent/EP2471654A3/en
Application granted granted Critical
Publication of EP2471654B1 publication Critical patent/EP2471654B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
    • B41C1/1025—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/02—Cover layers; Protective layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/10—Location, type or constituents of the non-imaging layers in lithographic printing formes characterised by inorganic compounds, e.g. pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/14—Location, type or constituents of the non-imaging layers in lithographic printing formes characterised by macromolecular organic compounds, e.g. binder, adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/04—Negative working, i.e. the non-exposed (non-imaged) areas are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/06—Developable by an alkaline solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/08—Developable by water or the fountain solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/10—Developable by an acidic solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/22—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by organic non-macromolecular additives, e.g. dyes, UV-absorbers, plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/24—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers

Definitions

  • the present invention relates to a lithographic printing plate precursor, a plate making method thereof and a lithographic printing method thereof. More particularly, it relates to a lithographic printing plate precursor which is capable of undergoing a so-called direct plate making in which the plate making is directly conducted based on digital signals, for example, from a computer using various kinds of lasers, a plate making method thereof and a lithographic printing method thereof.
  • a lithographic printing plate is composed of an oleophilic image area accepting ink and a hydrophilic non-image area accepting dampening water in the process of printing.
  • Lithographic printing is a printing method utilizing the nature of water and oily ink to repel with each other and comprising rendering the oleophilic image area of the lithographic printing plate to an ink-receptive area and the hydrophilic non-image area thereof to a dampening water-receptive area (ink-unreceptive area), thereby making a difference in adherence of the ink on the surface of the lithographic printing plate, depositing the ink only to the image area, and then transferring the ink to a printing material, for example, paper.
  • a printing material for example, paper.
  • a lithographic printing plate precursor comprising a hydrophilic support having provided thereon an oleophilic photosensitive resin layer (image-recording layer) is used.
  • the PS plate is exposed through a mask, for example, a lith film, and then subjected to development processing, for example, with an alkaline developer to remove the unnecessary image-recording layer corresponding to the non-image area by dissolving while leaving the image-recording layer corresponding to the image area, thereby obtaining the lithographic printing plate.
  • lithographic printing plate can be obtained by a CTP (computer-to-plate) technology.
  • a lithographic printing plate precursor is directly subjected to scanning exposure using laser or laser diode without using a lith film and developed to obtain a lithographic printing plate.
  • the issue on the lithographic printing plate precursor has transferred to improvements, for example, in image-forming property corresponding to the CTP technology, printing property or physical property. Also, with the increasing concern about global environment, as another issue on the lithographic printing plate precursor, an environmental problem on waste liquid discharged accompanying the wet treatment, for example, development processing comes to the front.
  • lithographic printing plate precursor is mounted as it is on a printing machine without conducting conventional development and removal of the unnecessary area of image-recording layer is performed at an early stage of printing step.
  • a method referred to as "gum development” is practiced wherein the removal of the unnecessary area of image-recording layer is performed using not a conventional high alkaline developer but a finisher or gum solution of near-neutral pH.
  • a system using a lithographic printing plate precursor capable of being handled in a bright room or under a yellow lump and a light source is preferred from the standpoint of workability.
  • a semiconductor laser emitting an infrared ray having a wavelength from 760 to 1,200 or a solid laser, for example, YAG laser is used as the light source.
  • a lithographic printing plate precursor using a thermoplastic polymer fine particle in an image-forming layer and a plate making method are described in JP-A-9-123387 (the term "JP-A” as used herein means an "unexamined published Japanese patent application") and JP-A-2003-255527 .
  • JP-A a lithographic printing plate precursor using a thermoplastic polymer fine particle having a reactive group in an image-forming layer and a plate making method are described in JP-A-2001-260554 and JP-A-2003-316021 .
  • these techniques are still insufficient for obtaining both good development property and high printing durability.
  • JP-A-2004317543 discloses a lithographic printing plate precursor comprising: an image-recording layer containing an infrared absorbing agent and a polymer compound; and a support having a hydrophilic surface, wherein the polymer compound is an alkali-soluble polymer having a star-like shape in which a main chain is branched to three or more branches and the branched main chains have a hydrophilic group in a side chain of the branched main chain.
  • the image-recording layer further comprises a polymerizable compound and a polymerization initiator. The image is formed by polymerizing the polymerizable compound in the exposed regions.
  • An object of the present invention is to provide a lithographic printing plate precursor which can achieve both printing durability and development property, a plate making method using the lithographic printing plate precursor and a lithographic printing method using the lithographic printing plate precursor.
  • a polymer compound hereinafter, also referred to as a star polymer
  • a star polymer having a star-like shape in which a main chain is branched to three or more branches and the branched main chains have a hydrophilic side chain
  • an image-recording layer containing a thermoplastic polymer fine particle a polymer compound having a star-like shape in which a main chain is branched to three or more branches and the branched main chains have a hydrophilic side chain
  • the invention provides the following items 1 to 10.
  • the functional mechanism of the invention is not quite clear but it is estimated that due to using the star polymer as the polymer compound dispersibility of the thermoplastic polymer fine particle in the image-recording layer is improved in comparison with a conventional strait-chain polymer and the thermoplastic polymer fine particle is uniformly dispersed so that the development property is more improved and a heat fusion efficiency of the thermoplastic polymer fine particle increases to improve the printing durability.
  • a lithographic printing plate precursor which can achieve both printing durability and development property, a plate making method using the lithographic printing plate precursor and a lithographic printing method using the lithographic printing plate precursor can be provided.
  • the image-recording layer of the lithographic printing plate precursor according to the invention contains a thermoplastic polymer fine particle, an infrared absorbing agent and a polymer compound having a star-like shape in which a main chain is branched to three or more branches and the branched main chains have a hydrophilic side chain.
  • thermoplastic polymer fine particle having Tg of 60°C or higher it is preferred to incorporate a thermoplastic polymer fine particle having Tg of 60°C or higher.
  • Tg of at least one kind of the thermoplastic polymer fine particles is 60°C or higher.
  • thermoplastic polymer fine particle having Tg of 60°C or higher thermoplastic polymer fine particles described, for example, in Research Disclosure, No. 33303, January (1992 ), JP-A-9-123387 , JP-A-9-131850 , JP-A-9-171249 , JP-A-9-171250 and European Patent 931,647 are preferably exemplified.
  • the polymer constituting the thermoplastic polymer fine particle include a homopolymer or copolymer of a monomer, for example, ethylene, styrene, vinyl chloride, methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, vinylidene chloride, acrylonitrile or vinyl carbazole and a mixture thereof.
  • a homopolymer or copolymer of a monomer for example, ethylene, styrene, vinyl chloride, methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, vinylidene chloride, acrylonitrile or vinyl carbazole and a mixture thereof.
  • polystyrene and polymethyl methacrylate are more preferred.
  • thermoplastic polymer fine particle contained in the image-recording layer of the lithographic printing plate precursor according to the invention may comprise two or more kinds of the thermoplastic polymer fine particles having different particle sizes or two or more kinds of the thermoplastic polymer fine particles having different Tg.
  • thermoplastic polymer fine particles By using two or more kinds of the thermoplastic polymer fine particles as described above, film curing property of the image area is more improved and when a lithographic printing plate is prepared, printing durability is more improved.
  • thermoplastic polymer fine particles having the same particle size since voids exist in some extent between the thermoplastic polymer fine particles, the film curing property may not reach the desired level in some cases even when the thermoplastic polymer fine particles are fused and solidified, for example, by heat mode exposure.
  • thermoplastic polymer fine particles having different particle sizes a void ratio between the thermoplastic polymer fine particles can be reduced and as a result, the film curing property of the image area after the heat mode exposure can be improved.
  • thermoplastic polymer fine particles having the same Tg when temperature elevation of the image-recording layer, for example, by heat mode exposure is insufficient, the thermoplastic polymer fine particles are not sufficiently fused and solidified and the film curing property may not reach the desired level in some cases.
  • thermoplastic polymer fine particles having different Tg the film curing property of the image area can be improved even when the temperature elevation of the image-recording layer, for example, by heat mode exposure is insufficient.
  • the average particle size of the thermoplastic polymer fine particle is preferably from 0.005 to 2.0 ⁇ m.
  • the value is also applied to the case in which two or more kinds of the thermoplastic polymer fine particles are used as a mixture.
  • the average particle size thereof is more preferably from 0.01 to 1.5 ⁇ m, and particularly preferably from 0.05 to 1.0 ⁇ m.
  • a polydispersity is preferably 0.2 or more.
  • the occurrence of void at the heat fusion decreases and high printing durability can be achieved.
  • the polydispersity and average particle size are determined by a laser scattering method.
  • the Tg of at least one kind of the thermoplastic polymer fine particles is preferably 60°C or higher, more preferably from 70 to 140°C, and still more preferably from 80 to 120°C. In case of mixing two or more kinds of the thermoplastic polymer fine particles having different Tg, difference of the Tg is preferably 10°C or more, and more preferably 20°C or more.
  • the content of the thermoplastic polymer fine particles having Tg of 60°C or higher is preferably 70% by weight or more based on the total thermoplastic polymer fine particles. When the content is 70% by weight or more, deterioration of the on-press development property due to the lapse of time is preferably more reduced.
  • the thermoplastic polymer fine particle contained in the image-recording layer of the lithographic printing plate precursor according to the invention may have a crosslinkable group.
  • the crosslinkable group may be a functional group which undergoes any reaction as long as a chemical bond is formed and includes, for example, an ethylenically unsaturated group (for example, an acryloyl group, a methacryloyl group, a vinyl group or an allyl group) undergoing a polymerization reaction, an isocyanate group or a blocked form thereof undergoing an addition reaction and a functional group having an active hydrogen atom (for example, an amino group, a hydroxy group or a carboxyl group) as the reaction partner thereof, an epoxy group also undergoing an addition reaction and an amino group, a carboxyl group or a hydroxy group as the reaction partner thereof, a carboxyl group undergoing a condensation reaction and a hydroxy group or an amino group as the reaction partner thereof, and an acid anhydride undergoing a ring opening addition
  • thermoplastic polymer fine particle having a thermo-reactive functional group contained in the image-recording layer of the lithographic printing plate precursor according to the invention specifically includes that having an acryloyl group, a methacryloyl group, a vinyl group, an allyl group, an epoxy group, an amino group, a hydroxy group, a carboxyl group, an isocyanate group, an acid anhydride and a protected group thereof.
  • the introduction of the functional group into the thermoplastic polymer fine particle may be conducted at the time of polymerization of the polymer fine particle or may be conducted by utilizing a polymer reaction after the polymerization of the polymer fine particle.
  • a monomer having the crosslinkable group may preferably be subjected to emulsion polymerization or suspension polymerization.
  • the monomer having the crosslinkable group examples include allyl methacrylate, allyl acrylate, vinyl methacrylate, vinyl acrylate, glycidyl methacrylate, glycidyl acrylate, 2-isocyanateethyl methacrylate or a blocked isocyanate thereof, for example, with an alcohol, 2-isocyanateethyl acrylate or a blocked isocyanate thereof, for example, with an alcohol, 2-aminoethyl methacrylate, 2-aminoethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, acrylic acid, methacrylic acid, maleic anhydride, a divalent acrylate and a divalent methacrylate, but the invention should not be construed as being limited thereto.
  • the polymer reaction used in the case of conducting the introduction of the crosslinkable group after the polymerization of polymer fine particle includes, for example, a polymer reaction described in WO 96/34316 .
  • the polymer fine particles may be reacted with each other via the crosslinkable groups or with a reactive group introduced into a side chain of the polymer having a star-like shape or a low molecular weight polymerizable compound added to the image-recording layer. Also, different kinds of crosslinkable groups capable of undergoing thermal reaction with each other are introduced into two or more kinds of polymer fine particles so that the thermoplastic polymer fine particles are reacted with each other.
  • the reaction involved therein includes a polymerization reaction by an unsaturated group, an addition reaction between an isocyanate group or a blocked form thereof and a compound having an active hydrogen atom (for example, an amine, an alcohol or a carboxylic acid), an addition reaction between an epoxy group and an amino group, a carboxyl group or a hydroxy group, a condensation reaction between a carboxyl group and a hydroxy or an amino group, and a ring opening addition reaction between an acid hydride and an amino group or a hydroxy group.
  • an active hydrogen atom for example, an amine, an alcohol or a carboxylic acid
  • an addition reaction between an epoxy group and an amino group, a carboxyl group or a hydroxy group a condensation reaction between a carboxyl group and a hydroxy or an amino group
  • a ring opening addition reaction between an acid hydride and an amino group or a hydroxy group.
  • any reaction may be used as long as a chemical bond can be formed.
  • the amount of the thermoplastic polymer fine particle for use in the invention to the image-recording layer is preferably from 40 to 95% by weight, more preferably from 50 to 90% by weight, particularly preferably from 60 to 85% by weight, based on the solid content of the image-recording layer.
  • the polymer compound for use in the invention is a star polymer in which a main chain is branched to three or more branches and a polymer compound which has a main chain structure as schematically shown in Fig. 1 and is represented buy formula (1) shown below.
  • A represents a branch unit (constituting unit including branch points) of the star polymer
  • Polymer represents a polymer chain constituting a main chain and has a hydrophilic group in its side chain
  • n represents 3 or more.
  • the star polymer for use in the invention may be any polymer having the main chain structure as described above and a hydrophilic group in its side chain.
  • the hydrophilic group is preferably contained in the Polymer moiety as a repeating unit having the hydrophilic group in its side chain.
  • M 1 and M 2 each represents a hydrogen ion, a metal ion, an ammonium ion or a phosphonium ion
  • R 1 and R 2 each independently represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group.
  • any one of M 1 and M 2 represents the metal ion
  • specific examples of the metal ion include Li + , Na + , K + and Cu + .
  • Li + , Na + and K + are particularly preferred.
  • any ordinary ammonium ion can be preferably used and an ammonium ion having a number of carbon atoms of 24 or less per molecule is preferred and an ammonium ion having a number of carbon atoms of 16 or less per molecule is particularly preferred.
  • any one of M 1 and M 2 represents the phosphonium ion
  • any ordinary phosphonium ion can be preferably used and a phosphonium ion having a number of carbon atoms of 24 or less per molecule is preferred and a phosphonium ion having a number of carbon atoms of 16 or less per molecule is particularly preferred.
  • any ordinary alkyl group can be used, and it may be a branched or cyclic form and may have a substituent, for example, a halogen atom, an ether group, a thioether group, a hydroxy group, a cyano group, a keto group, a carboxyl group, a carboxylate group, a carbonic acid ester group, a carbonic acid amido group, a sulfo group, a sulfonate group, a sulfonic acid ester group, a sulfonamido group, a sulfoxide group, a phenyl group, a phosphonic acid group, a phosphonate group, a phosphoric acid group, a phosphate group, an amino group, an aminocarbonyl group, an amino carboxyl group or an aminosulfonyl group.
  • a substituent for example, a halogen atom, an ether group, a thioether group
  • any one of R 1 and R 2 represents the alkenyl group
  • any ordinary alkenyl group can be used, and it may be a branched or cyclic form and may have a substituent, for example, a halogen atom, an ether group, a thioether group, a hydroxy group, a cyano group, a keto group, a carboxyl group, a carboxylate group, a carbonic acid ester group, a carbonic acid amido group, a sulfo group, a sulfonate group, a sulfonic acid ester group, a sulfonamido group, a sulfoxide group, a phenyl group, a phosphonic acid group, a phosphonate group, a phosphoric acid group, a phosphate group, an amino group, an aminocarbonyl group, an aminocarbonyl group or an aminosulfonyl group.
  • the alkenyl group an alken
  • any ordinary aryl group can be preferably used.
  • the aryl group may have a substituent, for example, a halogen atom, an ether group, a thioether group, a hydroxy group, a cyano group, a nitro group, a keto group, a carboxyl group, a carboxylate group, a carbonic acid ester group, a carbonic acid amido group, a sulfo group, a sulfonate group, a sulfonic acid ester group, a sulfonamido group, a sulfoxide group, a phenyl group, a phosphonic acid group, a phosphonate group, a phosphoric acid group, a phosphate group, an amino group, an aminocarbonyl group, an aminocarboxyl group or an aminosulfonyl group.
  • a aryl group an aryl group
  • hydrophilic groups -COOM 1 (a carboxyl group or a salt thereof), -SO 3 M 1 (a sulfo group or a salt thereof) and a polyethylene oxy group are particularly preferred.
  • any repeating unit is preferably used as long as it is formed from a repeating unit having at least one of the hydrophilic groups.
  • Specific examples of the repeating unit having a hydrophilic group which can be used in the invention are set forth below, but the invention should not be construed as being limited thereto.
  • n and m each independently represents an optional integer.
  • the star polymer according to the invention may contain only one kind of the repeating unit having the hydrophilic group as described above or two or more kinds of the repeating units having the hydrophilic group as described above.
  • the star polymer according to the invention preferably has a reactive group capable of reacting with the crosslinkable group in its side chain.
  • the reactive group may be a reactive group which undergoes any reaction as long as a chemical bond with the crosslinkable group of the thermoplastic polymer fine particle is formed.
  • the thermoplastic polymer fine particle has an ethylenically unsaturated group (for example, an acryloyl group, a methacryloyl group, a vinyl group or an allyl group) undergoing a polymerization reaction, it is preferred to introduce also an ethylenically unsaturated group (for example, an acryloyl group, a methacryloyl group, a vinyl group or an allyl group) into the side chain of the star polymer.
  • an ethylenically unsaturated group for example, an acryloyl group, a methacryloyl group, a vinyl group or an allyl group
  • thermoplastic polymer fine particle has an isocyanate group or a blocked form thereof undergoing an addition reaction
  • a functional group having an active hydrogen atom for example, an amino group, a hydroxy group or a carboxyl group
  • thermoplastic polymer fine particle has an epoxy group undergoing an addition reaction
  • thermoplastic polymer fine particle has a crosslinkable group having an active hydrogen atom (for example, an amino group, a hydroxy group or a carboxyl group)
  • an isocyanate group or a blocked form thereof undergoing an addition reaction or an epoxy group also undergoing an addition reaction into the side chain of the star polymer.
  • the star polymer has a functional group, which is a reaction partner of the functional group included in the thermoplastic polymer fine particle.
  • crosslinkage between the polymer molecules by an ethylenically unsaturated group and to accelerate curing.
  • ethylenically unsaturated group for example, a (meth)acryloyl group, a vinyl group or an allyl group is preferred.
  • the ethylenically unsaturated group can be introduced into the polymer by a polymer reaction or copolymerization. For instance, a reaction between an acrylic polymer having a carboxyl group in its side chain and glycidyl methacrylate, a reaction between a polymer having an epoxy group and a carboxylic acid having an ethylenically unsaturated group, for example, methacrylic acid, or a reaction between a polymer having a hydroxy group and a methacrylate having an isocyanate group can be utilized.
  • a (meth)acryloyl group is preferred.
  • repeating unit having a reactive group for use in the invention are set forth below, but the invention should not be construed as being limited thereto.
  • the content of the ethylenically unsaturated group in the polymer compound according to the invention is preferably from 0.1 to 10.0 mmol, more preferably from 0.25 to 7.0 mmol, most preferably from 0.5 to 5.5 mmol, per 1 g of the polymer compound.
  • repeating unit having other reactive group include repeating units shown below.
  • Epoxy group (which reacts with an amino group, a hydroxy group or a carboxyl group of the thermoplastic polymer fine particle)
  • Isocyanate group or blocked isocyanate group (which reacts with an amino group, a hydroxy group or a carboxyl group of the thermoplastic polymer fine particle)
  • the star polymer for use in the invention may contain other repeating unit. Specific examples of the other repeating unit are set forth below, but the invention should not be construed as being limited thereto.
  • the branch unit represented by A in formula (1) is not particularly restricted and is preferably a branch unit having a hub portion, which is a residue of a three or higher functional thiol.
  • a main chain of an addition polymer extends from each thio part of the hub portion and thus, three or more main chains extend from the thio parts.
  • the branch unit A has preferably a structure represented by formula (2) shown below.
  • a 1 represents a trivalent or higher valent organic group
  • n represents an integer of 3 or more.
  • Specific examples of A 1 include structures shown below and organic groups composed of combination of two or more of these structures, n is preferably an integer from 3 to 6, and particularly preferably an integer from 4 to 6.
  • the three or higher functional thiol residue is derived from an aromatic or aliphatic thiol.
  • aromatic thiol include benzene-1,3,5-trithiol, 3,4,8,9-tetramercaptotetrathiafulvalene and 7-methyltrithiouric acid.
  • the thiol residue of the aliphatic thiol is preferably a residue of an ester formed from a three or higher functional alcohol and a mercaptoalkane acid having from 2 to 6 carbon atoms.
  • Examples of the appropriate alcohol include glycerine, sorbitol, an alcohol represented by formula (3) and an alcohol having a group represented by formula (4).
  • the alcohol represented by formula (3) and alcohol having a group represented by formula (4) are preferred.
  • R 1 represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms or a hydroxy-substituted alkyl group having from 1 to 4 carbon atoms.
  • R 1 is preferably a methyl group, an ethyl group, a hydroxymethyl group or a hydroxyethyl group.
  • Examples of the mercaptoalkane acid having from 2 to 6 carbon atoms include 2-mercaptoacetic acid, 2-mercaptopropionic acid, 3-mercaptopropionic acid, 4-mercaptobutyric acid, 5-mercaptovaleric acid and 6-mercaptocaproic acid. Among them, 2-mercaptoacetic acid and 3-mercaptopropionic acid are preferred.
  • ester formed from a three or higher functional alcohol and a mercaptoalkane acid having from 2 to 6 carbon atoms include a compound having three mercapto groups, for example, 1,2,6-hexanetrioltrithioglycolate, 1,3,5-trithiocyanuric acid, 1,3,5-tris(3-mercaptobutyryloxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, trimethylolpropane tris(3-mercaptopropionate), trimethylolpropane tristhioglycolate, trimethylolpropane tristhiopropionate, tribydroxyethyltriisocyanuric acid tristhiopropionate or tris-[(ethyl-3-mercaptopropionyloxy)ethyl] isocyanurate, and a compound having four mercapto groups, for example, pentaerythrito
  • TMTG trimethylolpropane tristhiopropionate
  • PETG pentaerythritol tetrakisthiopropionate
  • KarenzMT PE1 pentaerythritol tetrakis(3-mercaptobutyrate)
  • KarenzMT NR1 1,3,5-tris(3-mercaptobutyryloxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione
  • KarenzMT NR1 trimethylolpropane tris(3-mercaptopropionate)
  • PEMP pentaerythritol tetrakis(3-mercaptopropionate)
  • the branch unit represented by formula (2) includes structures shown below.
  • the weight average molecular weight (Mw) of the star polymer for use in the invention is preferably from 5,000 to 500,000, and more preferably from 10.000 to 250,000.
  • star polymer for use in the invention are set forth below, but the invention should not be construed as being limited thereto.
  • TABLE 1 Specific Examples of Star Polymer Star Polymer Branch Unit Polymer Chain Mw P-1 A-1 B-1 2.6 x 10 4 P-2 A-1 B-2 2.6 x 10 4 P-3 A-1 B-3 2.6 x 10 4 P-4 A-1 B-4 2.5 x 10 4 P-5 A-1 B-5 2.6 x 10 4 P-6 A-1 B-6 3.4 x 10 4 P-7 A-1 B-7 3.4 x 10 4 P-8 A-1 B-8 3.5 x 10 4 P-9 A-1 B-13 3.6 x 10 4 P-10 A-1 B-17 4.6 x 10 4 P-1 A-1 B-18 4.6 x 10 4 P-12 A-1 B-19 4.7 x 10 4 P-13 A-1 B-20 4.8 x 10 4 P-14 A-1 B-21 4.9 x 10 4 P-15 A-1 B-24 4.6 x 10 4 P-16 A-1 B-25 4.6 x 10 4 P-17 A-1 B-26 4.7 x
  • the star polymers according to the invention may be used only one kind or two or more kinds thereof in combination.
  • the content of the star polymer according to the invention in the image-recording layer is preferably from 3 to 50% by weight, more preferably from 5 to 40% by weight, particularly preferably from 10 to 30% by weight, based on the total solid content of the image-recording layer.
  • the star polymer according to the invention can be synthesized by a known method, for example, radical polymerization of the monomer constituting the polymer chain described above in the presence of the multifunctional thiol compound described above.
  • the lithographic printing plate precursor according to the invention contains an infrared absorbing agent in the image-recording layer thereof.
  • the infrared absorbing agent may also be incorporated into a layer adjacent to the image-recording layer (an undercoat layer or an overcoat layer described hereinafter).
  • the infrared absorbing agent is a substance which absorbs an infrared laser beam and various pigments, dyes and metal particles can be used.
  • a light-absorbing substance having an absorption band at least partially in a wavelength range from 700 to 1,200 nm is preferred.
  • pigments examples include black pigments, brown pigments, red pigments, purple pigments, blue pigments, green pigments, fluorescent pigments, metal powder pigments and polymer-bonded dyes.
  • usable pigment include insoluble azo pigments, azo lake pigments, condensed azo pigments, chelate azo pigments, phthalocyanine pigments, anthraquinone pigments, perylene and perynone pigments, thioindigo pigments, quinacridone pigments, dioxazine pigments, isoindolinone pigments, quinophthalone pigments, dying lake pigments, azine pigments, nitroso pigments, nitro pigments, natural pigments, fluorescent pigments, inorganic pigments and carbon black.
  • the pigment may be used without undergoing surface treatment or may be used after the surface treatment.
  • the surface treatment there are, for example, a method of coating a hydrophilic resin or an oleophilic resin on the surface, a method of attaching a surfactant on the surface and a method of bonding a reactive substance (for example, a silica sol, an alumina sol, a silane coupling agent, an epoxy compound or an isocyanate compound) to the pigment surface.
  • a reactive substance for example, a silica sol, an alumina sol, a silane coupling agent, an epoxy compound or an isocyanate compound
  • pigments those absorbing an infrared ray are preferred because they are suitably utilized with a laser emitting an infrared ray.
  • carbon black is preferred.
  • the particle size of the pigment is preferably in a range from 0.01 to 1 ⁇ m, and more preferably in a range from 0.01 to 0.5 ⁇ m.
  • infrared absorbing dyes for example, azo dyes, metal complex azo dyes, pyrazolone azo dyes, anthraquinone dyes, phthalocyanine dyes, carbonium dyes, quinoneimine dyes, polymethine dyes or cyanine dyes are preferred.
  • cyanine dyes described, for example, in JP-A-58-125246 , JP-A-59-84356 and JP-A-60-78787 methine dyes described, for example, in JP-A-58-173696 , JP-A-58-181690 and JP-A-58-194595 , naphthoquinone dyes described, for example, in JP-A-58-112793 , JP-A-58-224793 , JP-A-59-48187 , JP-A-59-73996 , JP-A-60-52940 and JP-A-60-63744 , squarylium dyes described, for example, in JP-A-58-112792 , cyanine dyes described in British Patent 434,875 , dyes described in U.S.
  • Patent 4,756,993 cyanine dyes described in U.S. Patent 4,973,572 , dyes described in JP-A-10-268512 , and phthalocyanine compounds described in JP-A-11-235 883 are exemplified.
  • near infrared absorbing sensitizers described in U.S. Patent 5,156,938 are preferably used as the dye.
  • substituted arylbenzo(thio)pyrylium salts described in U.S. Patent 3,881,924 trimethinethiapyrylium salts described in JP-A-57-142645 , pyrylium compounds described in JP-A-58-181051 , JP-A-58-220143 , JP-A-59-41363 , JP-A-59-84248 , JP-A-59-84249 , JP-A-59-146063 and JP-A-59-146061 , cyanine dyes described in JP-A-59-216146 , pentamethinethiopyrylium salts described in U.S.
  • Patent 4,283,475 pyrylium compounds described in JP-B-5-13514 (the term "JP-B” as used herein means an "examined Japanese patent publication") and JP-B-5-19702 , and EPOLIGHT III-178, EPOLIGHT III-130 and EPOLIGHT III-125 produced by Epolin, Inc. are also preferably used.
  • the dyes water-soluble dyes are preferred.
  • water-soluble cyanine dyes are preferred, and cyanine dyes which become water-soluble by a sulfonate are more preferred. Specific examples thereof are set forth below.
  • the amount of the infrared absorbing agent added is preferably in a range from 0.5 to 30 parts by weight, more preferably from 1.0 to 20 parts by weight, most preferably from 2.0 to 10 parts by weight per 100 parts by weight of the total solid content of the image-recording layer.
  • the polymerization initiator for use in the invention is a compound which initiates or accelerates polymerization of the polymerizable compound.
  • the polymerization initiator for use in the invention is preferably a radical polymerizable compound, and includes, for example, known thermal polymerization initiators, compounds containing a bond having small bond dissociation energy and photopolymerization initiators.
  • the polymerization initiator according to the invention include, for example, (a) an organic halide, (b) a carbonyl compound, (c) an azo compound, (d) an organic peroxide, (e) a metallocene compound, (f) an azido compound, (g) a hexaarylbiimidazole compound, (h) an organic borate compound, (i) a disulfone compound, (j) an oxime ester compound and (k) an onium salt compound.
  • organic halide (a) compounds described in Paragraph Nos. [0022] to [0023] of JP-A-2008-195018 are preferred.
  • carbonyl compound (b) compounds described in Paragraph No. [0024] of JP-A-2008-195018 are preferred.
  • azo compound (c) for example, azo compounds described in JP-A-8-108621 are used.
  • organic peroxide (d) for example, compounds described in Paragraph No. [0025] of JP-A-2008-195018 are preferred.
  • metallocene compound (e) for example, compounds described in Paragraph No. [0026] of JP-A-2008-195 018 are preferred.
  • azido compound (f) a compound, for example, 2,6-bis(4-azidobenzylidene)-4-methylcyclohexanone is exemplified.
  • hexaarylbiimidazole compound (g) for example, compounds described in Paragraph No. [0027] of JP-A-2008-195018 are preferred.
  • organic borate compound (h) for example, compounds described in Paragraph No. [0028] of JP-A-2008-195018 are preferred.
  • disulfone compound (i) for example, compounds described in JP-A-61-166544 and JP-A-2002-328465 are exemplified.
  • oxime ester compound (j) for example, compounds described in Paragraph Nos. [0028] to [0030] of JP-A-2008-195018 are preferred.
  • onium salts for example, diazonium salts described in S. I. Schlesinger, Photogr. Sci. Eng., 18, 387 (1974), T. S. Bal et al., Polymer, 21, 423 (1980) and JP-A-5-158230 (corresponding to diazonium of NI3), ammonium salts described in U.S. Patent 4,069,055 and JP-A-4-365049 , phosphonium salts described in U.S. Patents 4,069,055 and 4,069,056 , iodonium salts described in European Patent 104,143 , U. S. Patent Publication No.
  • the onium salt is preferred.
  • the iodonium salt, sulfonium salt and azinium salt are preferred. Specific examples of these compounds are set forth below, but the invention should not be construed as being limited thereto.
  • a diphenyliodonium salt is preferred.
  • a diphenyliodonium salt substituted with an electron donating group for example, an alkyl group or an alkoxy group is preferred, and an asymmetric diphenyliodonium salt is more preferred.
  • the iodonium salt include diphenyliodonium hexafluorophosphate, 4-methoxyphenyl-4-(2-methylpropyl)phenyliodonium hexafluorophosphate, 4-(2-methylpropyl)phenyl-p-tolyliodonium hexafluorophosphate, 4-hexyloxyphenyl- 2,4,6-trimethoxyphenyliodonium hexafluorophosphate, 4-hexyloxyphenyl-2,4-diethoxyphenyliodonium tetrafluoroborate, 4-octyloxyphenyl-2,4,6-trimethoxyphenyliodonium 1-perfluorobutanesulfonate, 4-octyloxypbenyl-2,4,6-trimethoxyphenyliodonium hexafluorophosphate and bis(4-tert-butylphenyl)iodonium
  • sulfonium salt examples include triphenylsulfonium hexafluorophosphate, triphenylsulfonium benzoylformate, bis(4-chlorophenyl)phenylsulfonium benzoylformate, bis(4-chlorophenyl)-4-methylphenylsulfonium tetrafluoroborate, tris(4-chlorophenyl)sulfonium 3.5-bis(methoxycarbonyl)benzenesulfonate and tris(4-chlorophenyl)sulfonium hexafluorophosphate.
  • Examples of the azinium salt include 1-cyclohexylmethyloxypyridinium hexafluorophosphate, 1-cyclohexyloxy-4-phenylpyridinium hexafluorophosphate, 1-ethoxy-4-phenylpyridinium hexafluorophosphate, 1-(2-ethylhexyloxy)-4-phenylpyridinium hexafluorophosphate, 4-chloro-1-cyclohexylmemyloxypyridmium hexafluorophosphate, 1-ethoxy-4-cyanopyridinium hexafluorophosphate, 3,4-dichloro-1-(2-ethylhexyloxy)pyridinium hexafluorophosphate, 1-benzyloxy-4-phenylpyridinium hexafluorophosphate, 1-phenethyloxy-4-phenylpyridinium hexafluorophosphate, 1-(
  • water-soluble or water-dispersible polymerization initiators are preferred.
  • Specific examples of water-soluble azo compound are set forth below.
  • the polymerization initiator can be added preferably in an amount from 0.1 to 50% by weight, more preferably from 0.5 to 30% by weight, particularly preferably from 0.8 to 20% by weight, based on the total solid content constituting the image-recording layer. In the range described above, good sensitivity and good stain resistance in the non-image area at the time of printing can be achieved.
  • the image-recording layer may contain other component, for example, a surfactant, a coloring agent, a development inhibitor, a development accelerator, a low molecular weight polymerizable compound capable of reacting with the crosslinkable group of the thermoplastic polymer fine particle, or a catalyst for increasing curing property or a precursor thereof.
  • a surfactant for example, a coloring agent, a development inhibitor, a development accelerator, a low molecular weight polymerizable compound capable of reacting with the crosslinkable group of the thermoplastic polymer fine particle, or a catalyst for increasing curing property or a precursor thereof.
  • the image-recording layer according to the invention is formed by dispersing or dissolving each of the necessary components described above in a known solvent to prepare a coating solution and coating the solution on a support by a known method, for example, bar coater coating and drying as described, for example, in Paragraph Nos. [0142] to [0143] of JP-A-2008-195018 .
  • the coating amount (solid content) of the image-recording layer formed on the support after coating and drying may be varied according to the intended purpose but is in general preferably from 0.3 to 3.0 g/m 2 . In the range described above, good sensitivity and good film property of the image-recording layer can be obtained.
  • a known support is used.
  • an aluminum plate subjected to roughening treatment and anodizing treatment according to a known method is preferred.
  • an enlarging treatment or a sealing treatment of micropores of the anodized film described in JP-A-2001-253181 and JP-A-2001-322365 or a surface hydrophilizing treatment for example, with an alkali metal silicate as described in U.S. Patents 2,714,066 , 3.181,461 , 3,280,734 and 3,902,734 or polyvinyl phosphonic acid as described in U.S. Patents 3,276,868 , 4,153,461 and 4,689,272 may be appropriately selected and applied to the aluminum plate, if desired.
  • the support preferably has a center line average roughness from 0.10 to 1.2 ⁇ m.
  • the support according to the invention may have a backcoat layer containing an organic polymer compound described in JP-A-5-45885 or an alkoxy compound of silicon described in JP-A-6-35174 , provided on the back surface thereof, if desired.
  • a protective layer (overcoat layer) may be provided on the image-recording layer.
  • the protective layer has a function for preventing, for example, occurrence of scratch in the image-recording layer or ablation caused by exposure with a high illuminance laser beam, in addition to the function for restraining an inhibition reaction against the image formation by means of oxygen blocking.
  • any water-soluble polymer and water-insoluble polymer can be appropriately selected to use.
  • the polymers may be used in mixture of two or more thereof, if desired.
  • polyvinyl alcohol, a modified polyvinyl alcohol, polyvinyl pyrrolidone, a water-soluble cellulose derivative and poly(meth)acrylonitrile are exemplified.
  • modified polyvinyl alcohol an acid-modified polyvinyl alcohol having a carboxyl group or a sulfo group is preferably used.
  • modified polyvinyl alcohols described in JP-A-2005-250216 and JP-A-2006-259137 are preferably exemplified.
  • the protective layer prefferably contains an inorganic stratiform compound, for example, natural mica or synthetic mica as described in JP-A-2005-119273 in order to increase the oxygen blocking property.
  • an inorganic stratiform compound for example, natural mica or synthetic mica as described in JP-A-2005-119273 in order to increase the oxygen blocking property.
  • the protective layer may contain a known additive, for example, a plasticizer for imparting flexibility, a surfactant for improving a coating property or a fine inorganic particle for controlling a surface slipping property.
  • a plasticizer for imparting flexibility for example, a surfactant for improving a coating property or a fine inorganic particle for controlling a surface slipping property.
  • the oil-sensitizing agent described with respect to the image-recording layer may also be incorporated into the protective layer.
  • the protective layer is coated according to a known method.
  • the coating amount of the protective layer is preferably in a range from 0.0 to 10 g/m 2 , more preferably in a range from 0.02 to 3 g/m 2 , most preferably in a range from 0.02 to 1 g/m 2 , in terms of the coating amount after drying.
  • the lithographic printing plate precursor according to the invention is subjected to plate making after image exposure by conducting development processing or development on a printing machine to use in printing.
  • the lithographic printing plate precursor is imagewise exposed with laser through a transparent original having a line image, a halftone dot image or the like, or imagewise exposed, for example, by scanning of laser beam based on digital data.
  • the wavelength of the exposure light source is preferably from 750 to 1,400 nm.
  • a solid laser or semiconductor laser emitting an infrared ray is preferably used as the light source of 750 to 1,400 nm.
  • the output is preferably 100 mW or more
  • the exposure time per pixel is preferably within 20 microseconds
  • the irradiation energy is preferably from 10 to 300 mJ/cm 2 .
  • the exposure mechanism may be any of an internal drum system, an external drum system and a flat bed system.
  • the image exposure can be conducted in a conventional manner using a plate setter or the like.
  • the image exposure may be conducted on the printing machine.
  • At least any of oily ink and an aqueous component is supplied on the imagewise exposed lithographic printing plate precursor on a printing machine to remove the image-recording layer in the non-image area, thereby preparing a lithographic printing plate.
  • the lithographic printing plate precursor after the image exposure is mounted as it is on a printing machine without undergoing any development processing or the lithographic printing plate precursor is mounted on a printing machine and imagewise exposed on the printing machine and then the oily ink and aqueous component are supplied to conduct printing, at an early stage of the printing in the unexposed area, the uncured image-recording layer is removed by dissolution or dispersion with the oily ink and/or aqueous component supplied to reveal the hydrophilic surface in the area.
  • the image-recording layer cured by the exposure forms the oily ink receptive area having the oleophilic surface.
  • the oily ink or aqueous component may be supplied at first on the surface of lithographic printing plate precursor, it is preferred to supply the oily ink at first in view of preventing the aqueous component from contamination with the component of the image-recording layer removed.
  • the lithographic printing plate precursor is subjected to the on-press development on the printing machine and used as it is for printing a large number of sheets.
  • the oily ink and aqueous component conventional printing ink and dampening water for lithographic printing are preferably used, respectively.
  • a protective layer is removed in a pre-water washing step, the alkali development is conducted, the alkali is removed by washing with water in a post-water washing step, gum solution treatment is conducted and drying is conducted in a drying step.
  • the protective layer and the unexposed area of the image-recording layer are together removed so that the resulting lithographic printing plate can be immediately mounted on a printing machine to perform printing.
  • the development and gum solution treatment are conducted at the same time so that the post-water washing step conducted after the alkali development is not particularly necessary and after conducting the development and gum solution treatment with one solution, the drying step can be performed. It is preferred that after the development and gum treatment, the excess developer is removed using a squeeze roller, followed by conducting the drying. Specifically, a considerably simplified processing process (gum development) composed of development and gum treatment with one solution and drying can be conducted.
  • the development according to the invention is performed in a conventional manner at liquid temperature ordinarily from 0 to 60°C, preferably from 15 to 40°C, using, for example, a method wherein the imagewise exposed lithographic printing plate precursor is immersed in the developer and rubbed with a brush or a method wherein the developer is sprayed to the imagewise exposed lithographic printing plate precursor and the exposed lithographic printing plate precursor is rubbed with a brush.
  • the developer having pH from 2 to 11 is preferably an aqueous solution containing water as a main component (containing 60% by weight or more of water based on weight of the developer).
  • an aqueous solution containing a surfactant for example, an anionic, nonionic, cationic or amphoteric surfactant
  • an aqueous solution containing a water-soluble polymer is preferred.
  • An aqueous solution containing both the surfactant and the water-soluble polymer is also preferred.
  • the pH of the developer is more preferably from 5 to 10.7, still more preferably from 6 to 10.5, and most preferably from 7.5 to 10.3.
  • the anionic surfactant for use in the developer is not particularly limited and includes, for example, fatty acid salts, abietic acid salts, hydroxyalkanesulfonic acid salts, alkanesulfonic acid salts, dialkylsulfosuccinic acid salts, straight-chain alkylbenzenesulfonic acid salts, branched alkylbenzenesulfonic acid salts, alkylnaphthalenesulfonic acid salts, alkyldiphenylether (di)sulfonic acid salts, alkylphenoxy polyoxyethylene propylsulfonic acid salts, polyoxyethylene akylsulfophenyl ether salts, N-alkyl-N-oleyltaurine sodium salt, N-alkylsulfosuccinic acid monoamide disodium salts, petroleum sulfonic acid salts, sulfated castor oil, sulfated beef tallow oil, sulf
  • the cationic surfactant for use in the developer is not particularly limited and hitherto known cationic surfactants may be used.
  • alkylamine salts, quaternary ammonium salts, alkylimidazolinium salts, polyoxyethylene alkyl amine salts and polyethylene polyamine derivatives are exemplified.
  • the nonionic surfactant for use in the developer is not particularly limited and includes, for example, polyethylene glycol type higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts, alkylnaphthol ethylene oxide adducts, phenol ethylene oxide adducts, naphthol ethylene oxide adducts, fatty acid ethylene oxide adducts, polyhydric alcohol fatty acid ester ethylene oxide adducts, higher alkylamine ethylene oxide adducts, fatty acid amide ethylene oxide adducts, ethylene oxide addacts of fat, polypropylene glycol ethylene oxide adducts, dimethylsiloxane-ethylene oxide block copolymers, dimethylsiloxane-(propylene oxide-ethylene oxide) block copolymers, fatty acid esters of polyhydric alcohol type glycerol, fatty acid esters of pentaerythritol, fatty acid esters of
  • alkyl-substituted or unsubstituted phenol ethylene oxide adducts and alkyl-substituted or unsubstituted naphthol ethylene oxide adducts are more preferred.
  • the amphoteric surfactant for use in the developer is not particularly limited and includes, for instance, amine oxide type, for example, alkyldimethylamine oxide, betaine type, for example, alkyl betaine and amino acid type, for example, sodium salt of alkylamino fatty acid.
  • amine oxide type for example, alkyldimethylamine oxide
  • betaine type for example, alkyl betaine
  • amino acid type for example, sodium salt of alkylamino fatty acid.
  • an alkyldimethylamine oxide which may have a substituent an alkyl carboxy betaine which may have a substituent and an alkyl sulfo betaine which may have a substituent are preferably used.
  • Specific examples of the compound are described, for example, in Paragraph Nos. [0255] to [0278] of JP-A-2008-203359 and Paragraph Nos.
  • JP-A-2008-276166 Specific examples of the more preferable compound include a 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, an alkyldiaminoethylglycine hydrochloride, lauryldimethylaminoacetic acid betaine, N-lauric acid amidopropldimethyl betaine and N-lauric acid amidopropyldimethylamine oxide.
  • the content of the surfactant in the developer is preferably from 0.01 to 20% by weight, and more preferably from 0.1 to 10% by weight.
  • the water-soluble polymer for use in the developer having pH from 2 to 11 includes, for example, soybean polysaccharide, modified starch, gum arabic, dextrin, a cellulose derivative (for example, carboxymethyl cellulose, carboxyethyl cellulose or methyl cellulose) or a modified product thereof, pllulan, polyvinyl alcohol or a derivative thereof, polyvinyl pyrrolidone, polyacrylamide, an acrylamide copolymer, a vinyl methyl ether/maleic anhydride copolymer, a vinyl acetate/maleic anhydride copolymer and a styrene/maleic anhydride copolymer.
  • soybean polysaccharide known soybean polysaccharide can be used.
  • SOYAFIVE trade name, produced by Fuji Oil Co., Ltd.
  • the soybean polysaccharide preferably used is that having viscosity in a range from 10 to 100 mPa/sec in the 10% by weight aqueous solution thereof.
  • modified starch known modified starch can be used.
  • the modified starch can be prepared, for example, by a method wherein starch, for example, of corn, potato, tapioca, rice or wheat is decomposed, for example, with an acid or an enzyme to an extent that the number of glucose residue per molecule is from 5 to 30 and then oxypropylene is added thereto in an alkali.
  • the content of the water-soluble polymer in the developer is preferably from 0.1 to 20% by weight, and more preferable from 0.5 to 10% by weight.
  • a pH buffer agent may further be incorporated.
  • a pH buffer agent exhibiting a pH buffer function at pH from 2 to 11 is used without particular restriction.
  • a weak alkaline buffer agent is preferably used and includes, for example, (a) a carbonate ion and a hydrogen carbonate ion, (b) a borate ion, (c) a water-soluble amine compound and an ion of the water-soluble amine compound, and combinations thereof.
  • a combination of a carbonate ion and a hydrogen carbonate ion, (b) a borate ion, or (c) a combination of a water-soluble amine compound and an ion of the water-soluble amine compound exhibits a pH buffer function in the developer to prevent fluctuation of the pH even when the developer is used for a long period of time.
  • a carbonate ion and a hydrogen carbonate ion is particularly preferred.
  • a carbonate and a hydrogen carbonate may be added to the developer or a carbonate ion and a hydrogen carbonate ion may be generated by adding a carbonate or a hydrogen carbonate to the developer and then adjusting the pH.
  • the carbonate or hydrogen carbonate used is not particularly restricted and it is preferably an alkali metal salt thereof.
  • the alkali metal include lithium, sodium and potassium and sodium is particularly preferable.
  • the alkali metals may be used individually or in combination of two or more thereof.
  • the total amount of the carbonate ion and hydrogen carbonate ion is preferably from 0.05 to 5 mole/l, more preferably from 0.1 to 2 mole/l, particularly preferably from 0.2 to 1 mole/l, in the developer.
  • the developer may contain an organic solvent.
  • an organic solvent for example, an aliphatic hydrocarbon (e.g., hexane, heptane, ISOPAR E, ISOPAR H, ISOPAR G (produced by Esso Chemical Co., Ltd.)), an aromatic hydrocarbon (e.g., toluene or xylene), a halogenated hydrocarbon (methylene dichloride, ethylene dichloride, trichlene or monochlorobenzene) or a polar solvent is exemplified.
  • an aliphatic hydrocarbon e.g., hexane, heptane, ISOPAR E, ISOPAR H, ISOPAR G (produced by Esso Chemical Co., Ltd.
  • an aromatic hydrocarbon e.g., toluene or xylene
  • a halogenated hydrocarbon methylene dichloride, ethylene dichloride, trichlene or monochlorobenzene
  • a polar solvent
  • the polar solvent examples include an alcohol (e.g., methanol, ethanol, propanol, isopropanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 2-octanol, 2-ethyl-1-hexanol, 1-nonanol, 1-decanol, benzyl alcohol, ethylene glycol monomethyl ether, 2-ethyoxyethanol, diethylene glycol monomethyl ether, diethylene glycol monohexyl ether, triethylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monomethyl ether, polyethylene glycol monomethyl ether, polypropylene glycol, tetraethylene glycol, ethylene glycol monobutyl ether, ethylene glycol monobenzyl ether, ethylene glycol monophenyl ether, propylene glycol monophenyl ether, methyl phenyl carbin
  • Two or more organic solvents may be used together in the developer.
  • the organic solvent when it is insoluble in water, it may be employed by being solubilized in water using a surfactant or the like.
  • the concentration of the organic solvent is desirably less than 40% by weight in view of safety and inflammability.
  • the developer having pH from 2 to 11 may contain a preservative, a chelating agent, a defoaming agent, an organic acid, an inorganic acid, an inorganic salt or the like in addition the components described above.
  • a preservative e.g., a chelating agent, a defoaming agent, an organic acid, an inorganic acid, an inorganic salt or the like.
  • compounds described in Paragraph Nos. [0266] to [0270] of JP-A-2007-206217 are preferably used.
  • the developer described above can be used as a developer and a development replenisher for the exposed lithographic printing plate precursor and it is preferably applied to an automatic processor described hereinafter.
  • an automatic processor described hereinafter.
  • the developer becomes fatigued in accordance with the processing amount, and hence the processing ability may be restored using a replenisher or a fresh developer.
  • the development processing using the developer having pH from 2 to 11 according to the invention is preferably performed by an automatic processor equipped with a supplying means for the developer and a rubbing member.
  • An automatic processor using a rotating brush roll as the rubbing member is particularly preferred.
  • the automatic processor is preferably provided with a means for removing the excess developer, for example, a squeeze roller or a drying means, for example, a hot air apparatus, subsequently to the development processing means.
  • the lithographic printing plate precursor according to the invention may be subjected to heat treatment in a post heating step (baking process) after the development processing in order to improve printing durability.
  • the baking process is conducted at temperature higher than the coagulation temperature of the thermoplastic polymer fine particle, for example, from 100 to 230°C for 5 to 40 minutes.
  • the exposed and developed lithographic printing plate precursor is subjected to baking at temperature of 230°C for 5 minutes, at temperature of 150°C for 10 minutes or at temperature of 120°C for 34 minutes.
  • the baking can be conducted in a conventional hot air oven or by irradiation using a lamp emitting an infrared or ultraviolet spectrum.
  • a molecular weight means a weight average molecular weight (Mw) and a ratio of repeating unit is indicated in mole percent.
  • An aluminum plate (material: JIS A 1050) having a thickness of 0.3 mm was subjected to a degreasing treatment at 50°C for 30 seconds using an aqueous 10% by weight sodium aluminate solution in order to remove rolling oil on the surface thereof and then neutralization and desmut treatment at 50°C for 30 seconds using an aqueous 30% by weight sulfuric acid solution.
  • the aluminum plate was subjected to a so-called graining treatment in which the surface of support was roughened in order to improve adhesion property between the support and the image-recording layer and to impart water retentivity in the non-image area.
  • a so-called graining treatment in which the surface of support was roughened in order to improve adhesion property between the support and the image-recording layer and to impart water retentivity in the non-image area.
  • an aqueous solution containing 1% by weight of nitric acid and 0.5% by weight of aluminum nitrate was maintained at 45°C and the aluminum plate was run in the solution to conduct electrolytic graining by providing anode side electric amount of 240C/dm 2 with alternating wave of current density of 20A/dm 2 and a duty ratio of 1:1 from an indirect electric supplying cell.
  • an etching treatment was conducted in an aqueous 10% by weight sodium aluminate solution at 50°C for 30 seconds and neutralization and desmut treatment were conducted at 50°C
  • an oxide film was formed on the support by anodic oxidization in order to improve abrasion resistance, chemical resistance and water retentivity.
  • an aqueous 20% by weight sulfuric acid solution was used and the aluminum web was transported in the electrolyte to conduct electrolytic treatment with direct current of 14A/dm 2 from an indirect electric supplying cell to form an anodic oxide film of 2.5 g/m 2 .
  • a silicate treatment was conducted in order to ensure hydrophilicity in the non-image area of a lithographic printing plate.
  • the aluminum web was transported in an aqueous 1.5% by weight sodium silicate No.3 solution while maintaining at 70°C so as to have the contact time of the aluminum web of 15 seconds, followed by washing with water.
  • the amount of Si adhered was 10 mg/m 2 .
  • the center line surface roughness (Ra) of the support thus-prepared was 0.25 urn.
  • Coating solution (1) or (2) for image-recording layer shown below was coated as shown in Table 2 on the support described above using a bar and dried by an oven to from an image-recording layer having a dry coating amount of 0.6 g/m 2 , thereby preparing Lithographic printing plate precursors (I) to (19), respectively.
  • Aqueous dispersion of polymer fine particle shown in Table 2 12.5 g (in terms of solid content) Infrared absorbing dye (3) having structure shown below 1.0 g Polymer compound represented by formula (1) shown in Table 2 2.0 g Disodium 1,5-naphthalenedisulfonate 0.1 g Pure water 10.0 g Infrared absorbing dye (3)
  • Aqueous dispersion of polymer fine particle shown in Table 2 12.5 g (in terms of solid content) Infrared absorbing dye (3) having structure shown above 1.0 g Polymer compound represented by formula (1) shown in Table 2 2.0 g Water-soluble azo compound shown below 0.5 g Disodium 1,5-naphthalenedisulfonate 0.1 g Pure water 10.0 g Water-soluble azo compound
  • a stirrer, a thermometer, a dropping funnel, a nitrogen inlet tube and a reflux condenser were attached to a 1,000 ml four-neck flask and while carrying out deoxygenation by introduction of nitrogen gas, 350 ml of distilled water was charged therein and heated until the internal temperature reached 80°C.
  • To the flask was added 1.5 g of sodium dodecylsufate as a dispersing agent, then was added 0.45 g of ammonium persulfate as an initiator, and thereafter was dropwise added 45.0 g of styrene through the dropping funnel over a period of about one hour.
  • the mixture was continued to react as it was for 5 hours, followed by removing the unreacted monomers by steam distillation.
  • the mixture was cooled, adjusted the pH to 6 with aqueous ammonia and finally added pure water thereto so as to have the nonvolatile content of 15% by weight to obtain Aqueous dispersion of fine polymer particle (1).
  • the particle size distribution of the fine polymer particle had the maximum value at the particle size of 60 nm.
  • the particle size distribution was determined by taking an electron microphotograph of the fine polymer particle, measuring particle sizes of 5,000 fine particles in total on the photograph, and dividing a range from the largest value of the particle size measured to 0 on a logarithmic scale into 50 parts to obtain occurrence frequency of each particle size by plotting.
  • a particle size of a spherical particle having a particle area equivalent to the particle area of the aspherical particle on the photograph was defined as the particle size.
  • Each of the lithographic printing plate precursors thus-obtained was exposed by LUXEL PLATESETTER T-6000III equipped with an infrared semiconductor laser, produced by FUJIFILM Corp. under the conditions of a rotational number of an external drum of 1,000 rpm, laser output of 70% and resolution of 2,400 dpi.
  • the exposed image contained a solid image and a 50% halftone dot chart of a 20 ⁇ m-dot FM screen.
  • the exposed lithographic printing plate precursor was mounted without undergoing development processing on a plate cylinder of a printing machine (LITHRONE 26, produced by Komori Corp.).
  • a printing machine LITHRONE 26, produced by Komori Corp.
  • VALUES-G N
  • Black Ink produced by DIC Corp.
  • the lithographic printing plate precursor prepared as above was exposed and subjected to development processing to conduct plate making and then printing was performed.
  • Each of the lithographic printing plate precursors was subjected to image exposure by Violet semiconductor laser plate setter Vx9600 (having InGaN semiconductor laser (emission wavelength: 405 nm ⁇ 10 nm/output: 30 mW)) produced by FUJIFILM Electronic Imaging Ltd. (FFEI).
  • the image drawing was performed at resolution of 2,438 dpi using FM screen TAFFETA 20, produced by FUJIFILM Corp.) in a plate surface exposure amount of 0.05 mJ/cm 2 so as to have a halftone dot area rate of 50%.
  • the exposed lithographic printing plate precursor was subjected to preheating at 100°C for 30 seconds and then subjected to development processing in an automatic development processor having a structure as shown in Fig. 2 using a developer 1 having the composition shown below.
  • the automatic development processor comprises a developing unit 6 for developing a lithographic printing plate precursor (hereinafter, also referred to as a "PS plate") 4 and a drying unit 10 for drying the developed PS plate 4.
  • An insertion slot is formed in a side plate of the automatic development processor (on the left side in Fig. 1 ) and the PS plate 4 inserted through the insertion slot is transported into the developing unit 6 by canting-in rollers 16 provided inside the side plate of the automatic development processor.
  • transport rollers 22 transport rollers 22, a brush roller 24 and squeeze rollers 26 are provided in order from the upstream side in the transporting direction and backup rollers 28 are disposed in appropriate positions therebetween.
  • the PS plate 4 is immersed in the developer while being transported by the transport rollers 22 and the protective layer and the unexposed area of the image-recording layer of PS plate 4 were removed by rotation of the brush roller 24 to conduct development processing.
  • the PS plate 4 subjected to the development processing is transported into the drying unit 10 by the squeeze rollers (carrying-out rollers) 26.
  • a guide roller 36 and a pair of skewer rollers 38 are disposed in order from the upstream side in the transporting direction.
  • drying means for example, hot air supply means or heat generating means (not shown) is also provided.
  • a discharge slot is provided in the drying unit 10 and the PS plate 4 dried by the drying means is discharged through the discharge slot, whereby the processing of PS plate by the automatic development processor is completed.
  • the automatic development processor used in the examples had one brush roller having an outer diameter of 50 mm and being implanted with fiber of polybutylene terephthalate (bristle diameter: 200 ⁇ m, bristle length: 17 mm), and the brush roller was rotated at 200 rpm (peripheral velocity at the tip of brush: 0.52 m/sec) in the same direction as the transporting direction of the lithographic printing plate precursor.
  • the temperature of the developer was 30°C.
  • the transportation of the lithographic printing plate precursor was conducted at transporting speed of 82 cm/min (the transporting speed was varied in the evaluation of development property). After the development processing, the lithographic printing plate was dried in the drying unit. The drying temperature was 80°C.
  • EU-3 etching solution, produced by FUJIFILM Corp.
  • TRANS-G N
  • Black Ink produced by DIC Corp.
  • compositions of Developer 1 used in the examples and comparative examples are shown in Table 3 below.
  • cyan density of the non-image area was measured by a Macbeth densitometer (produced by Gretag Macbeth Co., Ltd.).
  • the transporting speed at which the cyan density of the non-image area became equivalent to cyan density of the aluminum support was determined and at the transporting speed, a time period from when the top of the lithographic printing plate precursor was immersed in the developer to when the top of the lithographic printing plate precursor came out from the developer was regarded as a developing time to evaluate the development property.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials For Photolithography (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
EP20110191693 2010-12-28 2011-12-02 Lithographic printing plate precursor, plate making method thereof and lithographic printing method thereof Active EP2471654B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010294338A JP5286350B2 (ja) 2010-12-28 2010-12-28 平版印刷版原版、その製版方法、及び、その平版印刷方法

Publications (3)

Publication Number Publication Date
EP2471654A2 EP2471654A2 (en) 2012-07-04
EP2471654A3 EP2471654A3 (en) 2013-03-06
EP2471654B1 true EP2471654B1 (en) 2014-08-06

Family

ID=45047682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110191693 Active EP2471654B1 (en) 2010-12-28 2011-12-02 Lithographic printing plate precursor, plate making method thereof and lithographic printing method thereof

Country Status (2)

Country Link
EP (1) EP2471654B1 (enrdf_load_stackoverflow)
JP (1) JP5286350B2 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660068B1 (en) * 2010-12-28 2015-07-29 FUJIFILM Corporation Planographic printing plate precursor and planographic printing method
JP5205483B2 (ja) * 2011-02-04 2013-06-05 富士フイルム株式会社 平版印刷版原版及び製版方法
US9802889B2 (en) 2014-12-02 2017-10-31 Covalent Research Technologies, LLC Solid supported trithiol compounds for removing heavy metals from solution, and filtration systems utilizing the compounds
JP2018140587A (ja) * 2017-02-28 2018-09-13 富士フイルム株式会社 平版印刷版原版、平版印刷版の製版方法、及び、平版印刷方法。
WO2019064974A1 (ja) 2017-09-29 2019-04-04 富士フイルム株式会社 平版印刷版原版、及び、平版印刷版の作製方法
CN111655503B (zh) 2018-01-31 2022-05-03 富士胶片株式会社 平版印刷版原版及平版印刷版的制作方法
CN111670121B (zh) 2018-01-31 2022-05-13 富士胶片株式会社 平版印刷版原版及平版印刷版的制作方法
CN114096421B (zh) * 2019-06-28 2023-09-15 富士胶片株式会社 平版印刷版原版、平版印刷版的制作方法及平版印刷方法

Family Cites Families (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR44686E (fr) 1933-02-08 1935-03-20 Procédé d'obtention de photographies ou films cinématographiques en deux ou en plusieurs couleurs
BE507657A (enrdf_load_stackoverflow) 1950-12-06
US2833827A (en) 1955-01-17 1958-05-06 Bayer Ag Tri (3, 5-di lower alkyl-4-hydroxy phenyl)-sulfonium chlorides and method of preparing same
BE606888A (enrdf_load_stackoverflow) 1960-08-05 1900-01-01
US3181461A (en) 1963-05-23 1965-05-04 Howard A Fromson Photographic plate
US3280734A (en) 1963-10-29 1966-10-25 Howard A Fromson Photographic plate
US3458311A (en) 1966-06-27 1969-07-29 Du Pont Photopolymerizable elements with solvent removable protective layers
ZA6807938B (enrdf_load_stackoverflow) 1967-12-04
US3881924A (en) 1971-08-25 1975-05-06 Matsushita Electric Ind Co Ltd Organic photoconductive layer sensitized with trimethine compound
JPS5549729B2 (enrdf_load_stackoverflow) 1973-02-07 1980-12-13
US3902734A (en) 1974-03-14 1975-09-02 Twm Mfg Co Frames for axle suspension systems
GB1512982A (en) 1974-05-02 1978-06-01 Gen Electric Salts
US4069056A (en) 1974-05-02 1978-01-17 General Electric Company Photopolymerizable composition containing group Va aromatic onium salts
US4173476A (en) 1978-02-08 1979-11-06 Minnesota Mining And Manufacturing Company Complex salt photoinitiator
US4283475A (en) 1979-08-21 1981-08-11 Fuji Photo Film Co., Ltd. Pentamethine thiopyrylium salts, process for production thereof, and photoconductive compositions containing said salts
US4327169A (en) 1981-01-19 1982-04-27 Eastman Kodak Company Infrared sensitive photoconductive composition, elements and imaging method using trimethine thiopyrylium dye
JPS58112793A (ja) 1981-12-28 1983-07-05 Ricoh Co Ltd 光情報記録部材
JPS58112792A (ja) 1981-12-28 1983-07-05 Ricoh Co Ltd 光情報記録部材
JPS58125246A (ja) 1982-01-22 1983-07-26 Ricoh Co Ltd レ−ザ記録媒体
JPS58181690A (ja) 1982-04-19 1983-10-24 Canon Inc 光学記録媒体
JPS58220143A (ja) 1982-06-16 1983-12-21 Canon Inc 有機被膜
JPS58173696A (ja) 1982-04-06 1983-10-12 Canon Inc 光学記録媒体
JPS58181051A (ja) 1982-04-19 1983-10-22 Canon Inc 有機光導電体
JPS58194595A (ja) 1982-05-10 1983-11-12 Canon Inc 光学記録媒体
JPS5948187A (ja) 1982-09-10 1984-03-19 Nec Corp 光学記録媒体
JPS58224793A (ja) 1982-06-25 1983-12-27 Nec Corp 光学記録媒体
JPS5984248A (ja) 1982-11-05 1984-05-15 Canon Inc 有機被膜
JPS5984249A (ja) 1982-11-05 1984-05-15 Canon Inc 有機被膜
JPS5941363A (ja) 1982-08-31 1984-03-07 Canon Inc 新規ピリリウム系染料およびその製造方法
US4518676A (en) 1982-09-18 1985-05-21 Ciba Geigy Corporation Photopolymerizable compositions containing diaryliodosyl salts
JPS5973996A (ja) 1982-10-22 1984-04-26 Nec Corp 光学記録用媒体
JPS5984356A (ja) 1982-11-05 1984-05-16 Ricoh Co Ltd 光デイスク原盤の作成方法
JPS59146063A (ja) 1983-02-09 1984-08-21 Canon Inc 有機被膜
JPS59146061A (ja) 1983-02-09 1984-08-21 Canon Inc 有機被膜
JPS59216146A (ja) 1983-05-24 1984-12-06 Sony Corp 電子写真用感光材料
JPS6063744A (ja) 1983-08-23 1985-04-12 Nec Corp 光学的情報記録媒体
JPS6052940A (ja) 1983-09-02 1985-03-26 Nec Corp 光学記録媒体
JPS6078787A (ja) 1983-10-07 1985-05-04 Ricoh Co Ltd 光学的情報記録媒体
DE3406101A1 (de) 1984-02-21 1985-08-22 Hoechst Ag, 6230 Frankfurt Verfahren zur zweistufigen hydrophilierenden nachbehandlung von aluminiumoxidschichten mit waessrigen loesungen und deren verwendung bei der herstellung von offsetdruckplattentraegern
JP2525568B2 (ja) 1985-01-18 1996-08-21 富士写真フイルム株式会社 光可溶化組成物
JPS6259963A (ja) 1985-09-10 1987-03-16 Fuji Photo Film Co Ltd 電子写真感光材料
JPS6256971A (ja) 1985-09-05 1987-03-12 Fuji Photo Film Co Ltd 電子写真感光材料
US4756993A (en) 1986-01-27 1988-07-12 Fuji Photo Film Co., Ltd. Electrophotographic photoreceptor with light scattering layer or light absorbing layer on support backside
DE3604581A1 (de) 1986-02-14 1987-08-20 Basf Ag 4-acylbenzylsulfoniumsalze, ihre herstellung sowie sie enthaltende photohaertbare gemische und aufzeichnungsmaterialien
DE3604580A1 (de) 1986-02-14 1987-08-20 Basf Ag Haertbare mischungen, enthaltend n-sulfonylaminosulfoniumsalze als kationisch wirksame katalysatoren
US4760013A (en) 1987-02-17 1988-07-26 International Business Machines Corporation Sulfonium salt photoinitiators
DE3721741A1 (de) 1987-07-01 1989-01-12 Basf Ag Strahlungsempfindliches gemisch fuer lichtempfindliche beschichtungsmaterialien
DE3721740A1 (de) 1987-07-01 1989-01-12 Basf Ag Sulfoniumsalze mit saeurelabilen gruppierungen
US4973572A (en) 1987-12-21 1990-11-27 Eastman Kodak Company Infrared absorbing cyanine dyes for dye-donor element used in laser-induced thermal dye transfer
US4933377A (en) 1988-02-29 1990-06-12 Saeva Franklin D Novel sulfonium salts and the use thereof as photoinitiators
CA2002873A1 (en) 1988-11-21 1990-05-21 Franklin Donald Saeva Onium salts and the use thereof as photoinitiators
JPH02150848A (ja) 1988-12-02 1990-06-11 Hitachi Ltd 光退色性放射線感応性組成物およびそれを用いたパターン形成法
US5156938A (en) 1989-03-30 1992-10-20 Graphics Technology International, Inc. Ablation-transfer imaging/recording
JPH04365049A (ja) 1991-06-12 1992-12-17 Fuji Photo Film Co Ltd 感光性組成物
JP2739395B2 (ja) 1991-08-19 1998-04-15 富士写真フイルム株式会社 感光性平版印刷版
JPH05158230A (ja) 1991-12-10 1993-06-25 Fuji Photo Film Co Ltd ポジ型感光性組成物
JP2907643B2 (ja) 1992-07-16 1999-06-21 富士写真フイルム株式会社 感光性平版印刷版およびその処理方法
JPH08108621A (ja) 1994-10-06 1996-04-30 Konica Corp 画像記録媒体及びそれを用いる画像形成方法
EP0823070B1 (en) 1995-04-27 1999-12-29 Minnesota Mining And Manufacturing Company Negative-acting no-process printing plates
EP0770494B1 (en) 1995-10-24 2000-05-24 Agfa-Gevaert N.V. A method for making a lithographic printing plate involving on press development
DE69620336T2 (de) 1995-10-24 2002-10-24 Agfa-Gevaert, Mortsel Verfahren zur Herstellung einer lithographischen Druckplatte mit Wasser als Entwickler
DE69613078T2 (de) * 1995-11-09 2001-11-22 Agfa-Gevaert N.V., Mortsel Wärmeempfindliches Aufzeichnungselement und Verfahren zur Herstellung einer Druckform damit
DE69608522T2 (de) 1995-11-09 2001-01-25 Agfa-Gevaert N.V., Mortsel Wärmeempfindliches Aufzeichnungselement und Verfahren zur Herstellung einer lithographischen Druckform damit
JP3814961B2 (ja) 1996-08-06 2006-08-30 三菱化学株式会社 ポジ型感光性印刷版
JPH11235883A (ja) 1997-11-18 1999-08-31 Yamamoto Chem Inc 光熱変換材料
EP0931647B1 (en) 1998-01-23 2003-04-02 Agfa-Gevaert A heat sensitive element and a method for producing lithographic plates therewith
JP2001260554A (ja) 2000-01-14 2001-09-25 Fuji Photo Film Co Ltd 平版印刷版用原版
JP2001253181A (ja) 2000-03-09 2001-09-18 Fuji Photo Film Co Ltd ポジ型感熱性平版印刷用原板
JP2001322365A (ja) 2000-05-16 2001-11-20 Fuji Photo Film Co Ltd 感熱性平版印刷用原板
JP2002328465A (ja) 2001-04-27 2002-11-15 Fuji Photo Film Co Ltd 平版印刷版原版
EP1342568B1 (en) 2002-03-06 2005-10-12 Agfa-Gevaert N.V. Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution
JP2003316021A (ja) 2002-04-24 2003-11-06 Fuji Photo Film Co Ltd 平版印刷版の作製方法
JP2004317543A (ja) * 2003-04-11 2004-11-11 Fuji Photo Film Co Ltd 重合性組成物、及びそれを用いた平版印刷版原版
JP4815113B2 (ja) 2003-09-24 2011-11-16 富士フイルム株式会社 平版印刷版原版および平版印刷方法
JP2005212317A (ja) * 2004-01-30 2005-08-11 Fuji Photo Film Co Ltd 平版印刷版原版およびそれを用いる平版印刷方法
JP4351933B2 (ja) 2004-03-05 2009-10-28 富士フイルム株式会社 ネガ型平版印刷版原版およびこれを用いた平版印刷版の製版方法
JP2006199019A (ja) * 2004-08-31 2006-08-03 Fuji Photo Film Co Ltd 平版印刷用原版、親水性基板および平版印刷方法
JP4393408B2 (ja) 2005-03-16 2010-01-06 富士フイルム株式会社 ネガ型平版印刷版原版
JP2007206217A (ja) 2006-01-31 2007-08-16 Fujifilm Corp 平版印刷版の作製方法および平版印刷版原版
JP2007249036A (ja) * 2006-03-17 2007-09-27 Fujifilm Corp 平版印刷版原版および平版印刷方法
JP5064952B2 (ja) 2006-09-29 2012-10-31 富士フイルム株式会社 平版印刷版用現像処理液及び平版印刷版の製版方法
JP2008195018A (ja) 2007-02-15 2008-08-28 Fujifilm Corp 平版印刷版原版および平版印刷方法
JP4887173B2 (ja) 2007-02-16 2012-02-29 富士フイルム株式会社 平版印刷版の作製方法
US20080311520A1 (en) 2007-06-13 2008-12-18 Jianfei Yu On-press developable negative-working imageable elements and methods of use

Also Published As

Publication number Publication date
EP2471654A2 (en) 2012-07-04
JP2012139921A (ja) 2012-07-26
JP5286350B2 (ja) 2013-09-11
EP2471654A3 (en) 2013-03-06

Similar Documents

Publication Publication Date Title
EP2471654B1 (en) Lithographic printing plate precursor, plate making method thereof and lithographic printing method thereof
US7300740B2 (en) Lithographic printing plate precursor and lithographic printing method
EP1759836B1 (en) Lithographic printing plate precursor and lithographic printing method
JP4469927B2 (ja) 感光性組成物およびこれを用いた平版印刷版原版、画像形成方法
EP2660068B1 (en) Planographic printing plate precursor and planographic printing method
CN1945436B (zh) 平版印刷板前体和平版印刷方法
US6242155B1 (en) Method of making lithographic printing plate and photopolymer composition
US20030008239A1 (en) Image recording material
JP2005125749A (ja) 平版印刷版原版および平版印刷方法
US8304171B2 (en) Plate making method of lithographic printing plate precursor
US7462440B2 (en) Lithographic printing plate precursor and lithographic printing method using the same
EP1992989A1 (en) Lithographic printing plate precursor
US20030073033A1 (en) Planographic printing plate precursor
EP2006091A2 (en) Lithographic printing plate precursor and plate making method
EP1905588B1 (en) Lithographic printing plate precursor and method for preparation thereof
JP4603873B2 (ja) 平版印刷版原版および平版印刷方法
US7214469B2 (en) Lithographic printing plate precursor and lithographic printing method
JP4137367B2 (ja) 画像記録材料
JP4299550B2 (ja) 平版印刷版原版
JP3828259B2 (ja) 平版印刷版の製版方法及び平版印刷版原版
JP3839540B2 (ja) 平版印刷版用原版
JP3863639B2 (ja) 平版印刷版用原版
JP2000071635A (ja) 平版印刷版用原版
JP2002192848A (ja) 平版印刷版用支持体およびそれを用いた平版印刷版用原版
JP2004133036A (ja) 製版方法

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: B41C 1/10 20060101AFI20130125BHEP

17P Request for examination filed

Effective date: 20130607

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140311

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 680829

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602011008858

Country of ref document: DE

Effective date: 20140918

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 680829

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140806

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140806

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141106

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141107

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141106

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141209

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141206

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602011008858

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141231

26N No opposition filed

Effective date: 20150507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141202

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141231

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141202

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141231

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20111202

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140806

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230515

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20241029

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20241104

Year of fee payment: 14