WO1994018005A1 - Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique - Google Patents

Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique Download PDF

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Publication number
WO1994018005A1
WO1994018005A1 PCT/EP1994/000118 EP9400118W WO9418005A1 WO 1994018005 A1 WO1994018005 A1 WO 1994018005A1 EP 9400118 W EP9400118 W EP 9400118W WO 9418005 A1 WO9418005 A1 WO 9418005A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
recording material
heat mode
hydrophilic surface
surface layer
Prior art date
Application number
PCT/EP1994/000118
Other languages
English (en)
Inventor
Yves Verburgh
Rudolf Van Den Bergh
Stefaan Karel De Meutter
Joan Triphon Vermeersch
Original Assignee
Agfa-Gevaert Naamloze Vennootschap
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 Agfa-Gevaert Naamloze Vennootschap filed Critical Agfa-Gevaert Naamloze Vennootschap
Priority to EP94905082A priority Critical patent/EP0683728B1/fr
Priority to JP6517570A priority patent/JP2592225B2/ja
Priority to DE69402537T priority patent/DE69402537D1/de
Publication of WO1994018005A1 publication Critical patent/WO1994018005A1/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
    • 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
    • B41C1/1016—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 characterised by structural details, e.g. protective layers, backcoat layers or several imaging 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
    • B41C2201/04—Intermediate layers
    • 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
    • B41C2210/02—Positive working, i.e. the exposed (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
    • B41C2210/08—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
    • B41C2210/24—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
    • 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

Definitions

  • the present invention relates to a heat mode recording material for making a lithographic plate for use in lithographic printing.
  • the present invention further relates to a method for imaging said heat mode recording material e.g. 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 (hydrophobic areas) whereas other areas will not accept ink (hydrophilic areas) .
  • 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.
  • DE-A-2448325 discloses a laser heat mode "direct negative" printing plate comprising e.g. a polyester film support provided with a hydrophilic surface layer.
  • the disclosed heat mode recording material is imaged using an Argon laser thereby rendering the exposed areas hydrophobic.
  • An offset printing plate is thus obtained which can be used on an printing press without further processing.
  • the plate is called a "direct negative” plate because the areas of the recording material that have been exposed are rendered ink accepting.
  • Laser exposure renders the exposed areas insoluble and ink receptive, whereas the non exposed image portions remain hydrophilic and water soluble allowing to be removed by the dampening li-quid during printing exposing the hydrophilic support.
  • Such plates can be used directly on the press without processing.
  • DD-A-155407 discloses a laser heat mode "direct negative" printing plate where a hydrophilic aluminum oxide layer is rendered oleophilic by direct laser heat mode imaging. These printing plates may also be used on the press without further processing.
  • this lithographic printing plate of high quality preferably can be obtained by development under essential dry conditions or with plain water or by using the imaged non processed plate directly on the press, these processing methods are referred to as 'ecological processing'.
  • a heat mode recording material comprising on a support having a ink receptive surface or being coated with an ink receptive layer a substance capable of converting light into heat and a hardened hydrophilic surface layer having a thickness not more than 3 ⁇ m.
  • a method for making a lithographic printing plate comprising the steps of:
  • a heat mode recording material comprising on a support having a ink receptive surface or being coated with an ink receptive layer a substance capable of converting light into heat and a hardened hydrophilic surface layer having a thickness not more than 3 ⁇ m and
  • the thickness of the hydrophilic surface layer is not more than 3 ⁇ m preferably not more than l ⁇ m.
  • the minimum thickness of the surface layer is not particularly critical but is preferably more than 0.05
  • a particularly interesting range for the thickness of the hydrophilic surface layer is between 0.05 ⁇ m and 0.5 ⁇ m.
  • 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, ect.
  • the laser may have a power output between 40 mW and 10000 mW and preferably operates in the infrared part of the spectrum.
  • the hydrophilic surface layer is removed at the exposed imaged areas. Removing can be done by e.g. rubbing using e.g. a brush or a cotton pad. Such rubbing may be carried out during image-wise exposure as described in US-P-5.148.746.
  • Rubbing of the heat mode recording material is preferably carried out in absence of a liquid in essentially dry conditions.
  • plain water or a water based developer may be used also.
  • Removing the hydrophilic surface layer on the imaged areas can further be done by ultrasonic treatment of the imaged recording material immersed in plain water or a water based developer, by means of a pressure jet of plain water or a water based developer. Removal of the exposed areas may also be done by directly mounting the plate on a printing machine so that the dampening liquid dissolves and removes the hydrophilic surface layer at the exposed areas during startup of the printing machine.
  • the substance capable of converting light into heat may be present in the support and/or in a separate recording layer provided between the support and the hardened hydrophilic surface layer.
  • the thickness of such a separate recording layer may be varied over a wide range. However when the thickness of such recording layer becomes more than 3 ⁇ m image—wise exposure should then be carried out through the hardened hydrophilic surface layer. In this case it also preferred not to include an additional layer between such recording layer and the hardened hydrophilic surface layer or to keep the thickness of such additional layer to a minimum preferably not more than 0.5 ⁇ m. Furthermore when using a recording layer having a thickness of more than 3 ⁇ m such layer should then be ink receptive.
  • the thickness of the recording layer is less than 3 ⁇ m exposure can take place through the support, when transparent, or through the hardened hydrophilic layer.
  • the recording layer will generaly not be required to be ink receptive as long as the underlying surface or layer is ink receptive and total removal of the recording layer together with the hydrophilic surface layer at the exposed areas is possible.
  • a recording layer having a thickness between O.Ol ⁇ and 30 ⁇ m.
  • substances capable of converting light into heat that may be used in connection with the present invention 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,
  • Suitable infrared pigments are e.g. HEUCODOR metal oxide pigments available from Heubach Langelsheim.
  • the recording layer is preferably a vacuum or vapour deposited metal layer.
  • the recording layer may be a vacuum deposited aluminium layer.
  • the thickness of such an aluminium layer however should be less than 250 A and more preferably between lOOA and 225A.
  • Polymeric binders for the recording layer are preferably hydrophobic such as e.g. cellulose esters e.g. cellulose acetate, cellulose nitrate, a copolymer of vinylidene chloride and acrylonitrile, poly (meth) acrylates, polyvinyl chloride, etc..
  • the polymeric binder in the recording layer is heat sensitive: e.g. a polymer containing nitrate ester groups (e.g. self oxidizing binder cellulose nitrate as disclosed in GB-1316398 and DE-A-2512038) ; e.g. a polymer containing carbonate groups (e.g. polyalkylene carbonate); e.g. a polymer containing covalently bound chlorine (e.g. polyvinylidene chloride) .
  • Suitable supports for a heat mode recording material used in connection with the present invention are preferably non-metallic supports having a hydrophobic (ink receptive) 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 used in connection with the present invention.
  • the surface of the support is not or insufficiently hydrophobic it may be provided with an intermediate hydrophobic primer coating whereon a recording layer may be deposited.
  • the recording layer can be the hydrophobic layer at the same time.
  • the recording layer may comprise additional substances such as plasticizers, crosslinking agents and resins, particulate materials such as e.g. polyethylene or fluorinated polymer dispersions, etc.. to impart toughness, print durability and oleophilic surface characteristics of the ablated image portions of the recording layer, wetting agents, matting agents, anti-oxidizing agents etc..
  • the recording layer will be hardened when it includes a binder.
  • any polymeric binder is suitable provided the adherance between the recording layer and the support is thereby improved. It has also been found that when the undercoat layer contains a polymer with heat labile groups (e.g. covalently bound chloride) adjacent to the recording layer the speed of the recording material can be improved as disclosed in EP 92201633.2.
  • a polymer with heat labile groups e.g. covalently bound chloride
  • imaging of the heat mode recording material takes place through the hydrophilic surface layer.
  • excellent image quality high sharpness, good contrast, excellent resolution
  • increased sensitivity are obtained.
  • hydrophilic coatings are preferably cast from aqueous compositions containing hydrophilic binders having free reactive groups including e.g. hydroxyl, carboxyl, hydroxyethyl, hydroxy-propyl, amino, aminoethyl, a inopropyl, carboxymethy1, etc.. along with suitable crosslinking or modifying agents including e.g. hydrophilic organotitanium reagents, ali.aminofo.rmyl acetate, dimethylol urea, melamines, aldehydes, hydrolyzed tetraalkyl orthosilicate, etc..
  • hydrophilic organotitanium reagents e.g. hydrophilic organotitanium reagents, ali.aminofo.rmyl acetate, dimethylol urea, melamines, aldehydes, hydrolyzed tetraalkyl orthosilicate, etc.
  • Suitable polymers for hydrophilic layers may be selected from the group consisting of gum arabic, casein, gelatin, starch derivatives, carboxymethyl cellulose and Na salt thereof, cellulose acetate, sodium alginate, vinyl acetate-maleic acid copolymers, styrene-maleic acid copolymers, polyacrylic acids and salts thereof, polymethacrylic acids and salts thereof, hydroxy-ethylene polymers, polyethylene glycols, hydroxypropylene polymers, polyvinyl alcohols, and hydrolyzed polyvinylacetate having a hydrolyzation degree of at least 60% by weight and more preferably at least 80% by weight.
  • Hydrophilic layers containing polyvinylalcohol or polyvinylacetate hydrolyzed to an extent of at least 60% by weight hardened with a tetraalkyl orthosilicate, e.g. tetraethyl orthosilicate or tetramethyl orthosilicate, as disclosed in e.g. US—P-3476937 are particularly preferred because their use in the present heat mode recording material results in excellent lithographic printing properties .
  • a further suitable hardened hydrophilic surface layer is disclosed in EP 91201227.5.
  • the hydrophilic layer disclosed in this EP-application comprises the hardening reaction product of a (co)polymer containing amine or -amide functions having at least one free hydrogen (e.g. a ino modified dextrane) and aldehyde.
  • the hardened hydrophilic surface layer may comprise additional substances such as e.g. plasticizers, pigments, dyes etc..
  • the hardened hydrophilic surface layer may also comprise particulate materials such as e.g. Ti ⁇ 2 or colloidal silica to increase the strength and/or hydrophilic character of the hydrophilic layer.
  • a polyethylene terephthalate support provided with a layer of a copolymer of vinylidene chloride (88 mol%) , methylacrylate (10 mol%) and itaconic acid (2mol%) in an amount of 170mg/m was vacuum deposited a bismuth layer as a recording layer such that the optical density thereof was 4.5 (thickness of about 0.30 ⁇ m) .
  • the thus prepared heat mode recording material was image-wise exposed through the hydrophilic surface layer with a Nd-YLF laser (1053 nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ m (l/e2) and a power output at the surface of the heat recording material of 1600 mW.
  • a Nd-YLF laser (1053 nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ m (l/e2) and a power output at the surface of the heat recording material of 1600 mW.
  • After imaging the hydrophilic surface layer was image—wise removed by rubbing with a dry cotton pad to expose the hydrophobic image portions of the support .
  • the optical density of the imaged image portions was decreased to about 0.05 compared to the non imaged areas having an optical density of 4.5. This difference in optical density between imaged and non imaged portions allows visual inspection of the recorded image on the plate.
  • the printing plate thus prepared was mounted on a printing press .ABDick 360 and was used to print with a commonly employed ink and dampening solution. The achieved image-wise hydrophobic-hydrophilic differentiation was satisfactory and print copies of good quality were obtained.
  • the imaged heat mode recording material as described in example 1 was image-wise exposed as described in example 1 and subjected to ultrasonic treatment in plain water during 2 minutes.
  • the printing plate thus prepared was mounted on a printing press ABDick 360 and was used to print with a commonly employed ink and dampening solution.
  • the image-wise achieved hydrophobic-hydrophilic differential was satisfactory and print copies of good quality were obtained.
  • the imaged heat mode recording material as described in example 1 was image-wise exposed as described in example 1 and was then mounted without further processing on a printing press .ABDick 360.
  • the recording material was used to print with a commonly employed ink and dampening solution.
  • the image-wise achieved hydrophobic- hydrophilic differential was satisfactory and print copies of good quality were obtained.
  • a dispersion for the recording layer having the following composition: 9.5 grams of low molecular weight nitrocellulose E330 (1), 9.5 grams of carbon black Special Schwarz 250, 0.2 grams of Solsperse 5000 (2), 0.8 grams of Solsperse 24000 (3), 80 grams of n-butanone.
  • the recording layer was applied to a dry coating thickness of about 0.5 ⁇ corresponding to an optical density of about 2.
  • E330 is a low molecular nitrocellulose, supplier Wolff Walsrode.
  • Solsperse 5000 is a dispersing agent from ICI .
  • Solsperse 24000 is a dispersing agent from ICI.
  • the thus prepared heat mode recording material was image-wise exposed through the hydrophilic layer with a Nd-YLF laser (1053nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ (l/e2) and a power output at the surface of the heat mode recording material of 1600 mW.
  • a Nd-YLF laser (1053nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ (l/e2) and a power output at the surface of the heat mode recording material of 1600 mW.
  • After imaging the hydrophilic surface layer was image—wise removed by rubbing with a dry cotton pad to expose the hydrophobic image portions of the remaining recording layer.
  • the optical density of the imaged image portions was decreased to about 1 compared to the non imaged areas having an optical density of 2. This difference in optical density between imaged and non imaged portions allows visual inspection of the recorded image on the plate.
  • the printing plate thus prepared was mounted on a printing press ABDick 360 and was used to print with a commonly employed ink and dampening solution.
  • the achieved image—wise hydrophobic-hydrophilic differentiation was satisfactory and print copies of good quality were obtained.
  • the recording layer was applied to a dry coating thickness of about 6 ⁇ corresponding to an optical density of >5.
  • the thus prepared heat mode recording material was image-wise exposed through the hydrophilic surface layer with a Nd-YLF laser (1053 nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ (l/e2) and a power output at the surface of the heat mode recording material of 1600 mW.
  • a Nd-YLF laser (1053 nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ (l/e2) and a power output at the surface of the heat mode recording material of 1600 mW.
  • After imaging the hydrophilic surface layer was image-wise removed by rubbing with a dry cotton pad to expose the hydrophobic image portions of the remaining recording layer.
  • the image portions showed a decreased optical reflectance compared to the non imaged areas. The difference in optical reflectance between imaged and non imaged portions allows visual inspection of the recorded image on the plate.
  • the printing plate thus prepared was mounted on a printing press ABDick 360 and was used to print with a commonly employed ink and dampening solution.
  • the achieved image-wise hydrophobic-hydrophilic differentiation was satisfactory and print copies of good quality were obtained.
  • a dispersion for the recording layer according the composition of example 4.
  • the recording layer was applied to a dry coating thickness of 0.5 ⁇ m corresponding to an optical density of about 2.
  • the thus prepared heat mode recording material was image-wise exposed through the hydrophilic toplayer with a Nd-YLF laser (1053 nm) at a linear writing speed of 32.8 m/s, with a spot diameter of 18 ⁇ m (l/e2) and a power output at the surface of the heat mode recording material of 1600 mW.
  • a Nd-YLF laser (1053 nm)
  • a spot diameter 18 ⁇ m (l/e2)
  • a power output at the surface of the heat mode recording material 1600 mW.
  • After imaging the hydrophilic surface layer was image-wise removed by rubbing with a dry cotton pad to expose the hydrophobic image portions of the remaining recording layer.
  • the optical density of the imaged portions was about 1 compared to the on imaged areas showing an optical density of 2. This difference in optical density between imaged and non imaged portions allows visual inspection of the recorded image on the plate.
  • the printing plate thus prepared was mounted on a printing press .ABDick 360 and was used to print with a commonly imployed ink and dampening solution. The acchieved image-wise hydrophobic-hydrophilic differentiation was satisfactory and print copies of good quality were obtained.
  • the imaged heat mode recording materials prepared and exposed according to examples 4, 5 and 6 were subjected to ultrasonic treatment in plain water during 2 minutes.
  • the printing plates thus prepared were mounted on a printing press ABDick 360 and were used to print with a commonly used ink and dampening.
  • the image-wise achieved hydrophobic-hydrophilic differential was satisfactory and print copies of good quality were obtained.
  • the recording materials were used to print with a commonly employed ink and dampening solution.
  • the image—wise achieved hydrophobic-hydrophilic differential was satisfactory and copies of good quality were obtained.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

La présente invention concerne une matière d'enregistrement en mode thermique ayant une vitesse d'enregistrement élevée et comprenant sur un support, lequel présente une surface réceptrice d'encre ou qui est revêtue d'une coucbe réceptrice d'encre, une substance capable de transformer la lumière en chaleur et une couche superficielle hydrophile, durcie, ayant une épaisseur ne dépassant pas 3 νm. L'invention concerne également un procédé de fabrication d'une plaque d'impression de haute qualité.
PCT/EP1994/000118 1993-02-09 1994-01-14 Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique WO1994018005A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94905082A EP0683728B1 (fr) 1993-02-09 1994-01-14 Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique
JP6517570A JP2592225B2 (ja) 1993-02-09 1994-01-14 ヒートモード記録材料及びそれを用いたリス印刷乾版の製造法
DE69402537T DE69402537D1 (de) 1993-02-09 1994-01-14 Wärmeempfindliches Aufzeichnungsmaterial und Verfahren zur Herstellung eines Druckstroms für Flachdruck

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93200342 1993-02-09
EP93200342.9 1993-02-09

Publications (1)

Publication Number Publication Date
WO1994018005A1 true WO1994018005A1 (fr) 1994-08-18

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Application Number Title Priority Date Filing Date
PCT/EP1994/000118 WO1994018005A1 (fr) 1993-02-09 1994-01-14 Matiere d'enregistrement en mode thermique et procede l'utilisant dans la fabrication d'une plaque d'impression lithographique

Country Status (4)

Country Link
EP (1) EP0683728B1 (fr)
JP (1) JP2592225B2 (fr)
DE (1) DE69402537D1 (fr)
WO (1) WO1994018005A1 (fr)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0770496A1 (fr) * 1995-10-24 1997-05-02 Agfa-Gevaert N.V. Appareil pour la fabircation d'une plaque lithographique avec développement sur presse
EP0770495A1 (fr) * 1995-10-24 1997-05-02 Agfa-Gevaert N.V. Procédé pour la fabrication d'une plaque lithographique avec développement sur presse
EP0770494A2 (fr) * 1995-10-24 1997-05-02 Agfa-Gevaert N.V. Procédé pour la fabrication d'une plaque lithographique avec développement sur presse
EP0770497A1 (fr) * 1995-10-24 1997-05-02 Agfa-Gevaert N.V. Procédé pour la fabrication d'une plaque lithographique avec développement à l'eau
EP0795998A1 (fr) * 1996-03-14 1997-09-17 Agfa-Gevaert N.V. Production de plaques d'impression lithographiques par exposition séquentielle d'un élément de thermographie à l'aide d'un ensemble de faisceaux de rayonnement
EP0816070A1 (fr) * 1996-06-24 1998-01-07 Agfa-Gevaert N.V. Elément d'enregistrement thermosensible et méthode pour la fabrication d'un cliché lithographique utilisant cet élément
EP0839647A1 (fr) * 1996-10-29 1998-05-06 Agfa-Gevaert N.V. Procédé de fabrication d'une plaque d'impression lithographique à prise d'encre améliorée
WO1998034796A1 (fr) * 1997-02-07 1998-08-13 Kodak Polychrome Graphics Company Ltd. Element d'impression a plat et procede pour sa fabrication
WO1998040213A1 (fr) * 1997-03-13 1998-09-17 Kodak Polychrome Graphics, L.L.C. Procede permettant de produire une image sur une plaque lithographique au moyen d'un laser de haute intensite
WO1998040212A1 (fr) * 1997-03-13 1998-09-17 Kodak Polychrome Graphics, L.L.C. Plaques lithographiques munies d'une couche sol-gel
WO1998055311A1 (fr) * 1997-06-03 1998-12-10 Agfa-Gevaert Naamloze Vennootschap Precurseurs de planches d'impression thermosensibles
WO1998058801A1 (fr) * 1997-06-24 1998-12-30 Kodak Polychrome Graphics, L.L.C. Plaques lithographiques a impression directe
WO1999004974A1 (fr) * 1997-07-25 1999-02-04 Kodak Polychrome Graphics Plaques d'impression lithographique monocouches a inscription directe
WO1999019143A1 (fr) * 1997-10-14 1999-04-22 Kodak Polychrome Graphics Planches d'impression lithographique comprenant une matiere de conversion photothermique
WO1999019144A1 (fr) * 1997-10-14 1999-04-22 Kodak Polychrome Graphics Planches d'impression lithographique a stabilite dimensionnelle dotees d'une couche sol-gel
WO1999038688A1 (fr) * 1998-01-29 1999-08-05 Kodak Polychrome Graphics, Llc Element d'imagerie sans eau, a gravure directe, presentant des proprietes d'ablation ameliorees, procedes d'imagerie et d'impression
EP0953441A1 (fr) * 1998-04-30 1999-11-03 Eastman Kodak Company Plaques d'impression lithographiques antiréfléchissantes pour écriture directe
US6001536A (en) * 1995-10-24 1999-12-14 Agfa-Gevaert, N.V. Method for making a lithographic printing plate involving development by plain water
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EP0683728B1 (fr) 1997-04-09
DE69402537D1 (de) 1997-05-15
JPH08507727A (ja) 1996-08-20
JP2592225B2 (ja) 1997-03-19
EP0683728A1 (fr) 1995-11-29

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