EP0573091A1 - Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec - Google Patents

Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec Download PDF

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Publication number
EP0573091A1
EP0573091A1 EP93201354A EP93201354A EP0573091A1 EP 0573091 A1 EP0573091 A1 EP 0573091A1 EP 93201354 A EP93201354 A EP 93201354A EP 93201354 A EP93201354 A EP 93201354A EP 0573091 A1 EP0573091 A1 EP 0573091A1
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EP
European Patent Office
Prior art keywords
layer
surface layer
heat
recording material
heat mode
Prior art date
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Granted
Application number
EP93201354A
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German (de)
English (en)
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EP0573091B1 (fr
Inventor
Luc C/O Agfa-Gevaert N.V. Leenders
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Presstek LLC
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Agfa Gevaert NV
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Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to EP95201704A priority Critical patent/EP0685333A2/fr
Priority to EP93201354A priority patent/EP0573091B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/46—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
    • 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
    • B41C1/1033—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 by laser or spark ablation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/003—Printing plates or foils; Materials therefor with ink abhesive means or abhesive forming means, such as abhesive siloxane or fluoro compounds, e.g. for dry lithographic printing
    • 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
    • B41C2210/16—Waterless working, i.e. ink repelling exposed (imaged) or non-exposed (non-imaged) areas, not requiring fountain solution or water, e.g. dry lithography or driography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/46—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
    • B41M5/465—Infrared radiation-absorbing materials, e.g. dyes, metals, silicates, C black

Definitions

  • the present invention relates to a heat mode recording material for making a lithographic printing plate for use in lithographic printing without dampening.
  • the present invention further relates to a method for imaging said heat mode recording material by means of a laser.
  • Lithographic printing is the process of printing from specially prepared surfaces, some areas of which are capable of accepting ink (oleophilic areas) whereas other areas will not accept ink (oleophobic areas).
  • the oleophilic areas form the printing areas while the oleophobic areas form the background areas.
  • lithographic printing plates Two basic types of lithographic printing plates are known. According to a first type, so called wet printing plates, both water or an aqueous dampening liquid and ink are applied to the plate surface that contains hydrophilic and hydrophobic areas. The hydrophilic areas will be soaked with water or the dampening liquid and are thereby rendered oleophobic while the hydrophobic areas will accept the ink.
  • a second type of lithographic printing plates operates without the use of a dampening liquid and are called driographic printing plates. This type of printing plates comprise highly ink repellant areas and oleophilic areas. Generally the highly ink repellant areas are formed by a silicon layer.
  • Driographic printing plates can be prepared using a photographic material that is made image-wise receptive or repellant to ink upon photo-exposure of the photographic material.
  • heat mode recording materials the surface of which can be made image-wise receptive or repellant to ink upon image-wise exposure to heat and/or subsequent development are also known for preparing driographic printing plates.
  • a heat mode recording material that comprises on a support carrying or having an oleophilic surface (i) a heat mode recording layer containing a self oxidizing binder e.g. nitrocellulose and a substance that is capable of converting radiation into heat e.g. carbon black and (ii) a non-hardened silicon layer as a surface layer.
  • the disclosed heat mode recording material is image-wise exposed using a laser and is subsequently developed using a developing liquid that is capable of dissolving the silicon layer in the exposed areas. Subsequent to this development the silicon surface layer is cured. Due to the use of naphta as a developing liquid the process is ecologically disadvantageous. Further since the surface layer is not hardened the heat mode recording material may be easily damaged during handling.
  • FR-A-1.473.751 discloses a heat mode recording material comprising a substrate having an oleophilic surface a layer containing nitrocellulose and carbon black and a silicon layer. After image-wise exposure using a laser the imaged areas are said to be rendered oleophilic. The decomposed silicon layer is not removed. Ink acceptance of the obtained plates is poor and the printing properties such as printing endurance and resolution of the copies is rather poor.
  • Research Disclosure 19201 of april 1980 discloses a heat mode recording material comprising a polyester film support provided with a bismuth layer as a heat mode recording layer and a silicon layer on top thereof.
  • the disclosed heat mode recording material is imaged using an Argon laser and developed using hexane.
  • a method for making a lithographic printing plate requiring no dampening liquid comprising the steps of:
  • a heat mode recording material comprising on a support having an oleophilic surface (i) a recording layer having a thickness of not more than 3 ⁇ m and containing a light-to-heat converting substance capable of converting radiation into heat and (ii) a cured oleophobic surface layer and wherein said oleophobic surface layer and recording layer may be the same layer.
  • the heat mode recording material is image-wise exposed using a laser.
  • lasers are e.g. semiconductor lasers, YAG lasers e.g. Nd-YAG lasers, Argon lasers etc..
  • the laser may have a power output between 40 and 7500mW and preferably operates in the infrared part of the spectrum.
  • the support of the heat mode recording material is transparant and image-wise exposure proceeds through the support.
  • the oleophobic surface layer is rubbed. Rubbing can be done using e.g. a brush or a cotton pad. Rubbing of the heat mode recording material is preferably carried out in absence of a liquid however a non-solvent for the oleophobic surface layer may be used such a e.g. isopropanol when the surface layer contains a polysiloxane. Rubbing according to the present invention offers in addition to the ecological advantage printing plates of high resolution and sharpness.
  • the heat mode recording material contains a separate heat mode recording layer containing the heat converting Substance comprised between the support and the oleophobic surface layer.
  • substances capable of converting radiation into heat are e.g. carbon black, infrared or near infrared absorbing dyes or pigments, metals such as Bi, Sn, Te etc. or a combination thereof.
  • Suitable infrared dyes are disclosed in e.g. US-4833124, EP-321923, US-4772583, US-4942141, US-4948776, US-4948777, US-4948778, US-4950639, US-4950640, US-4912083, US-4952552, US-5024990, US-5023229 etc..
  • Suitable infrared pigments are e.g. HEUCODOR metal oxide pigments available from Heubach Langelsheim.
  • the recording layer is preferably a vacuum deposited metal layer.
  • the thickness of the recording layer may not be more than 3 ⁇ m in order to obtain a printing plate of acceptable quality, more preferably the thickness will be less than 2.5 ⁇ m.
  • the recording layer preferably has a thickness between 150 ⁇ and 1.5 ⁇ m. The maximum thickness of 3 ⁇ m of the recording layer is especially important when exposure is carried out through the support.
  • the recording layer may be a vacuum deposited aluminium layer.
  • the thickness of such and aluminium layer however should be less than 250 ⁇ and more preferably between 100 ⁇ and 225 ⁇ . When the thickness of the aluminium recording layer becomes too large the heat mode recording material in connection with the present invention cannot be imaged.
  • the heat mode recording layer used in connection with the present invention may contain a binder e.g. gelatin, cellulose, cellulose esters e.g. cellulose acetate, nitrocellulose, polyvinyl alcohol, polyvinyl pyrrolidone, a copolymer of vinylidene chloride and acrylonitrile, poly(meth)acrylates, polyvinyl chloride, silicone resin etc..
  • the recording layer may further contain other ingredients such as e.g. wetting agents, matting agents, anti-oxidizing agents etc..
  • the heat mode recording layer contains a polymer containing covalently bound chlorine.
  • this polymer may be contained in a separate layer located adjacent to the heat mode recording layer and most preferably between the support and the heat mode recording layer.
  • the heat mode recording layer in connection with the present invention may be hardened.
  • a nitrocellulose layer hardened with an isocyanate may be used.
  • Suitable chlorine containing polymers for use in accordance with the present invention are e.g. polyvinyl chloride, polyvinylidene chloride, a copolymer of vinylidene chloride, an acrylic ester and itaconic acid, a copolymer of vinyl chloride and vinylidene chloride, a copolymer of vinyl chloride and vinyl acetate, a copolymer of butylacrylate, vinyl acetate and vinyl chloride or vinylidene chloride, a copolymer of vinyl chloride, vinylidene chloride and itaconic acid, a copolymer of vinyl chloride, vinyl acetate and vinyl alcohol, chlorinated polyethylene, polychloroprene and copolymers therof, chlorosulfonated polyethylene, polychlorotrifluoroethylene, polymethyl-alpha-chloroacrylate etc.
  • the chlorine containing polymer used in connection with the present invention may be prepared by various polymerization methods of the constituting monomers.
  • the polymerization may be conducted in aqueous dispersion containing a catalyst and activator, e.g., sodium persulphate and meta sodium bisulphite, and an emulsifying and/or dispersing agent.
  • a catalyst and activator e.g., sodium persulphate and meta sodium bisulphite
  • an emulsifying and/or dispersing agent e.g., sodium persulphate and meta sodium bisulphite
  • the homopolymers or copolymers used with the present invention may be prepared by polymerization of the monomeric components in the bulk without added diluent, or the monomers may be reacted in appropriate organic solvent reaction media.
  • the total catalyst-activator concentration should generally be kept within a range of about 0.01% to about 2.0% by weight of the monomer charge, and preferably within a range of concentration of 0.1% to 1.0%. Improved solubility and viscosity values are obtained by conducting the polymerization in the presence of mercaptans such as ethyl mercaptan, lauryl mercaptan, tertiary dodecyl mercaptan, etc., which are effective in reducing cross-linking in the copolymer. In general, the mercaptans should be used in concentrations of 0.1% to 5.0% by weight, based on the weight of polymerizable monomers present in the charge.
  • mercaptans such as ethyl mercaptan, lauryl mercaptan, tertiary dodecyl mercaptan, etc.
  • chlorine containing polymer may be prepared by chloronating homopolymers or copolymers.
  • chlorinated rubbers such as polychloroprene may be prepared by reacting a rubber with chlorine gas.
  • chlorinated polyethylene may be prepared.
  • the heat converting substance may be contained in the oleophobic surface layer provided that said substance is homogeneously distributed therein.
  • Suitable supports for the heat mode recording material used in connection with present invention are preferably non-metallic supports having an oleophilic surface e.g. a polyester film support, paper coated with a polyolefin such as polyethylene, polycarbonate film, polystyrene film etc..
  • metallic support such as e.g. aluminium can also be used in connection with the present invention.
  • the surface of the support is not or insufficiently oleophilic it may be provided with an oleophilic layer.
  • the oleophobic surface layer in accordance with the present invention preferably has a thickness of at least 1.0 ⁇ m and more preferably at least 1.5 ⁇ m.
  • the maximum thickness of the surface layer is not critical but will preferably be not more than 5 ⁇ m and more preferably not more than 4 ⁇ m. It has been found that the thickness of the oleophobic surface layer influences the printing endurance, sharpness and resolution of the printing plate.
  • the oleophobic surface layer preferably contains a hardened silicone coating.
  • the silicone coating contains one or more components one of which is generally a linear silicone polymer terminated with a chemically reactive group at both ends and a multi functional component as a hardening agent.
  • the silicone coating can be hardened by condensation curing, addition curing or radiation curing.
  • Condensation curing can be performed by using a hydroxy terminated polysiloxane that can be cured with a multi functional silane.
  • Suitable silanes are e.g. acetoxy silanes, alkoxy silanes and silanes containing oxime functional groups.
  • the condensation curing is carried out in the presence of one or more catalyst such as e.g. tin salts or titanates.
  • hydroxy terminated polysiloxanes can be cured with a polyhydrosiloxane polymer in the presence of a catalyst e.g. dibutyltindiacetate.
  • Addition curing is based on the addition of Si-H to a double bond in the presence of a platinum catalyst.
  • Silicone coatings that can be cured according to the addition curing thus comprise a vinyl group containing polymer, a platinum catalyst e.g. chloroplatinic acid complexes and a polyhydrosiloxane e.g. polymethylhydrosiloxane.
  • Suitable vinyl group containing polymers are e.g. vinyldimethyl terminated polydimethylsiloxanes and dimethylsiloxane/vinylmethyl siloxane copolymers.
  • Radiation cure coatings that can be used in accordance with the present invention are e.g. U.V. curable coatings containing polysiloxane polymers containing epoxy groups or electron beam curable coatings containing polysiloxane polymers containing (meth)acrylate groups.
  • the latter coatings preferably also contain multifunctional (meth)acrylate monomers.
  • the ink repellant layer may comprise additional substances such as e.g. plasticizers, pigments, dyes etc..
  • EXXSOL DSP 80/1101 Exxon Chemicals
  • SYL-OFF 73672 Low Corning
  • Exxsol DSP 80/110 is a naphta i.e. a mixture of paraffins and in which the content of aromatics has been reduced.
  • Syl-off 7367 is the cross-linker used and is a solution of 71% of methyl hydrogen polysiloxane in ethynylcyclohexene.
  • the following coating solution for the recording layer was prepared:
  • a comparitive heat mode recording material was prepared by coating the above coating solution for the recording layer to a polyethylene terephthalate film support (175 ⁇ m) with a Braive coating knife (50 ⁇ m) to a dry layer thickness of 4.5 ⁇ m.
  • the ink repellant layer from the above described coating solution to a dry thickness of 2.5 ⁇ m. Subsequent the ink repellant layer was cured for 5min. at 130°C.
  • a heat mode recording material according to the invention was prepared similar to the comparative sample with the exception that the coating solution for the recording layer further contained 17.5ml of methyl ethylketone and that said recording layer was applied to a dry thickness of 1 ⁇ m.
  • Both samples were image-wise exposed through the support using a Nd-Yag laser (1064nm) at a linear writing speed of 14m/s, with a spot diameter of 6.5 ⁇ m (1/e2) and a power output of 212mW for the comparative sample and 160mW for the invention sample. Both heat mode recording materials were then rubbed with a dry cotton pad to remove the ink repellant layer in the exposed parts.
  • a polyethylene terephthalate support provided with a layer of a copolymer of vinylidenechloride (88 mol%), methylacrylate (10 mol%) and itaconic acid (2mol%) in an amount of 170mg/m2 was vacuum deposited a bismuth layer as a recording layer such that the optical density thereof was 1.7 (thickness of about 0.11 ⁇ m).
  • a bismuth layer as a recording layer such that the optical density thereof was 1.7 (thickness of about 0.11 ⁇ m).
  • To this recording layer was then coated the ink repellant layer described in example 1 to a dry thickness of 1 ⁇ m and which was cured as described in example 1.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP93201354A 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec Revoked EP0573091B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP95201704A EP0685333A2 (fr) 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec
EP93201354A EP0573091B1 (fr) 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP92201633 1992-06-05
EP92201633 1992-06-05
EP93201354A EP0573091B1 (fr) 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP95201704.4 Division-Into 1993-05-11

Publications (2)

Publication Number Publication Date
EP0573091A1 true EP0573091A1 (fr) 1993-12-08
EP0573091B1 EP0573091B1 (fr) 1996-03-20

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EP95201704A Withdrawn EP0685333A2 (fr) 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec
EP93201354A Revoked EP0573091B1 (fr) 1992-06-05 1993-05-11 Matériau d'enregistrement thermosensible et procédé pour la production de plaques lithographiques à sec

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580394A2 (fr) * 1992-07-20 1994-01-26 Presstek, Inc. Méthode et appareil pour l'enregistrement par laser
EP0580393A2 (fr) 1992-07-20 1994-01-26 Presstek, Inc. Plaque pour l'impression lithographique
US5440987A (en) * 1994-01-21 1995-08-15 Presstek, Inc. Laser imaged seamless lithographic printing members and method of making
EP0689096A1 (fr) 1994-06-16 1995-12-27 Eastman Kodak Company Plaques d'impression lithographiques utilisant une couche oléophile à formation d'image
US5493971A (en) * 1994-04-13 1996-02-27 Presstek, Inc. Laser-imageable printing members and methods for wet lithographic printing
EP0727321A1 (fr) * 1995-02-17 1996-08-21 Konica Corporation Matériel pour la formation d'images, leur procédé de préparation et procédé pour la formation d'images l'utilisant
US5605780A (en) * 1996-03-12 1997-02-25 Eastman Kodak Company Lithographic printing plate adapted to be imaged by ablation
EP0683728B1 (fr) * 1993-02-09 1997-04-09 Agfa-Gevaert N.V. Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique
USRE35512E (en) * 1992-07-20 1997-05-20 Presstek, Inc. Lithographic printing members for use with laser-discharge imaging
US5649486A (en) * 1995-07-27 1997-07-22 Presstek, Inc. Thin-metal lithographic printing members with visible tracking layers
EP0794069A2 (fr) * 1996-03-08 1997-09-10 Fuji Photo Film Co., Ltd. Plaque lithographique pour l'impression à sec
EP0795420A1 (fr) 1996-03-12 1997-09-17 Eastman Kodak Company Plaque d'impression lithographique adaptée pour l'imagerie ablative
EP0802067A1 (fr) * 1995-11-08 1997-10-22 Toray Industries, Inc. Plaque planographique originale, sans eau, pour dessin direct
US5698366A (en) * 1995-05-31 1997-12-16 Eastman Kodak Company Method for preparation of an imaging element
US5721087A (en) * 1995-09-13 1998-02-24 Fuji Photo Film Co., Ltd. Formation of lithographic printing plate requiring no fountain solution
EP0830942A2 (fr) * 1996-09-18 1998-03-25 Presstek, Inc. Méthodes et compositions pour la fabrication et le nettoyage des plaques d'impression lithographiques
US5743188A (en) * 1995-10-20 1998-04-28 Eastman Kodak Company Method of imaging a zirconia ceramic surface to produce a lithographic printing plate
US5836249A (en) * 1995-10-20 1998-11-17 Eastman Kodak Company Laser ablation imaging of zirconia-alumina composite ceramic printing member
US5836248A (en) * 1997-05-01 1998-11-17 Eastman Kodak Company Zirconia-alumina composite ceramic lithographic printing member
US5839370A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Flexible zirconia alloy ceramic lithographic printing tape and method of using same
US5839369A (en) * 1995-10-20 1998-11-24 Eastman Kodak Company Method of controlled laser imaging of zirconia alloy ceramic lithographic member to provide localized melting in exposed areas
US5855173A (en) * 1995-10-20 1999-01-05 Eastman Kodak Company Zirconia alloy cylinders and sleeves for imaging and lithographic printing methods
US5870956A (en) * 1995-12-21 1999-02-16 Eastman Kodak Company Zirconia ceramic lithographic printing plate
US5893328A (en) * 1997-05-01 1999-04-13 Eastman Kodak Company Method of controlled laser imaging of zirconia-alumina composite ceramic lithographic printing member to provide localized melting in exposed areas
US5925496A (en) * 1998-01-07 1999-07-20 Eastman Kodak Company Anodized zirconium metal lithographic printing member and methods of use
US5927207A (en) * 1998-04-07 1999-07-27 Eastman Kodak Company Zirconia ceramic imaging member with hydrophilic surface layer and methods of use
US5931097A (en) * 1995-05-08 1999-08-03 Flex Products, Inc. Laser imageable lithographic printing member
US5962188A (en) * 1997-06-24 1999-10-05 Kodak Polychrome Graphics Llc Direct write lithographic printing plates
EP0950518A1 (fr) * 1998-04-15 1999-10-20 Agfa-Gevaert N.V. Matériau d'enregistrement thermosensible pour la fabrication de plaques d'impression positives
EP0950517A1 (fr) * 1998-04-15 1999-10-20 Agfa-Gevaert N.V. Matériau d'enregistrement thermosensible pour la fabrication de plaques d'impression positives
US6014930A (en) * 1997-07-25 2000-01-18 Kodak Polychrome Graphics Llc Single layer direct write lithographic printing plates
US6083664A (en) * 1998-01-16 2000-07-04 Fuji Photo Film Co., Ltd. Method for producing planographic printing plate
US6090524A (en) * 1997-03-13 2000-07-18 Kodak Polychrome Graphics Llc Lithographic printing plates comprising a photothermal conversion material
WO2000042472A1 (fr) * 1999-01-14 2000-07-20 3M Innovative Properties Company Procede permettant d'appliquer un motif sur des films fins
US6110645A (en) * 1997-03-13 2000-08-29 Kodak Polychrome Graphics Llc Method of imaging lithographic printing plates with high intensity laser
EP1031412A1 (fr) * 1999-02-22 2000-08-30 Fuji Photo Film Co., Ltd. Plaque d'impression lithographique sensible à la chaleur
US6136508A (en) * 1997-03-13 2000-10-24 Kodak Polychrome Graphics Llc Lithographic printing plates with a sol-gel layer
US6192799B1 (en) 1998-04-15 2001-02-27 Agfa-Gevaert, N.V. Heat mode sensitive imaging element for making positive working printing plates
US6207348B1 (en) 1997-10-14 2001-03-27 Kodak Polychrome Graphics Llc Dimensionally stable lithographic printing plates with a sol-gel layer
US6569594B2 (en) 1998-04-15 2003-05-27 Agfa-Gevaert Heat mode sensitive imaging element for making positive working printing plates
US6613496B1 (en) 1996-10-02 2003-09-02 Fuji Photo Film Co., Ltd. Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plate
US6706463B2 (en) * 2001-05-22 2004-03-16 Fuji Photo Film Co., Ltd. Method for making lithographic printing plate

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EP0795420A1 (fr) 1996-03-12 1997-09-17 Eastman Kodak Company Plaque d'impression lithographique adaptée pour l'imagerie ablative
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US6613496B1 (en) 1996-10-02 2003-09-02 Fuji Photo Film Co., Ltd. Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plate
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US6599674B1 (en) 1999-02-22 2003-07-29 Fuji Photo Film Co., Ltd. Heat-sensitive lithographic printing plate
US6706463B2 (en) * 2001-05-22 2004-03-16 Fuji Photo Film Co., Ltd. Method for making lithographic printing plate

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EP0685333A2 (fr) 1995-12-06
EP0685333A3 (fr) 1996-01-10

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