EP0849091A1 - Elément sensible à la chaleur formateur d'image pour la fabrication de plaques d'impression lithographiques comprenant des particules de polymère avec une dimension de particule spécifique - Google Patents
Elément sensible à la chaleur formateur d'image pour la fabrication de plaques d'impression lithographiques comprenant des particules de polymère avec une dimension de particule spécifique Download PDFInfo
- Publication number
- EP0849091A1 EP0849091A1 EP96203633A EP96203633A EP0849091A1 EP 0849091 A1 EP0849091 A1 EP 0849091A1 EP 96203633 A EP96203633 A EP 96203633A EP 96203633 A EP96203633 A EP 96203633A EP 0849091 A1 EP0849091 A1 EP 0849091A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- imaging element
- heat
- polymer particles
- image
- forming layer
- 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.)
- Granted
Links
Classifications
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- 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
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- 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
- B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
- B41M5/366—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
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- 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
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- 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
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- 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
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- 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
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- 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
- B41C2210/26—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 not involving carbon-to-carbon unsaturated bonds
- B41C2210/262—Phenolic condensation polymers, e.g. novolacs, resols
Definitions
- the present invention relates to a heat-sensitive imaging element for making a lithographic printing plate. More in particular the present invention relates to a heat-sensitive imaging element comprising an image-forming layer comprising hydrophobic thermoplastic polymer particles having a specific particle size and polydispersity.
- Lithographic printing is the process of printing from specially prepared surfaces, some areas of which are capable of accepting ink, whereas other areas will not accept ink.
- a photographic material is made imagewise receptive to oily or greasy ink in the photo-exposed (negative working) or in the non-exposed areas (positive working) on a ink-repelling background.
- lithographic plates also called surface litho plates or planographic printing plates
- a support that has affinity to water or obtains such affinity by chemical treatment is coated with a thin layer of a photosensitive composition.
- Coatings for that purpose include light-sensitive polymer layers containing diazo compounds, dichromate-sensitized hydrophilic colloids and a large variety of synthetic photopolymers. Particularly diazo-sensitized systems are widely used.
- the exposed image areas become insoluble and the unexposed areas remain soluble.
- the plate is then developed with a suitable liquid to remove the diazonium salt or diazo resin in the unexposed areas.
- thermoplastic polymer particles By image-wise exposure to an infrared laser, the thermoplastic polymer particles are image-wise coagulated thereby rendering the surface of the imaging element at these areas ink acceptant without any further development.
- a disadvantage of this method is that the printing plate obtained is easily damaged since the non-printing areas may become ink-accepting when some pressure is applied thereto. Moreover, under critical conditions, the lithographic performance of such a printing plate may be poor and accordingly such printing plate has little lithographic printing latitude.
- EP-A-514145 discloses a heat-sensitive imaging element including a coating comprising core-shell particles having a water insoluble heat softenable core component and a shell component which is soluble or swellable in an aqueous alkaline medium.
- Red or infrared laser light directed image-wise at said imaging element causes selected particles to coalesce, at least partially, to form an image and the non-coalesced particles are then selectively removed by means of an aqueous alkaline developer. Afterwards a baking step is performed.
- the printing endurance of a so obtained printing plate is low.
- EP-A-599510 discloses a heat-sensitive imaging element which comprises a substrate coated with (i) a layer which comprises (1) a disperse phase comprising a water-insoluble heat softenable component A and (2) a binder or continuous phase consisting of a component B which is soluble or swellable in aqueous, preferably aqueous alkaline medium, at least one of components A and B including a reactive group or precursor therefor, such that insolubilisation of the layer occurs at elevated temperature and/or on exposure to actinic radiation , and (ii) a substance capable of strongly absorbing radiation and transferring the energy thus obtained as heat to the disperse phase so that at least partial coalescence of the coating occurs.
- said plate After image-wise irradiation of the imaging element and developing the image-wise irradiated plate, said plate is heated and/or subjected to actinic irradiation to effect insolubilisation.
- the printing endurance of a so obtained printing plate is low.
- EP-A 952022871.0, 952022872.8, 952022873.6 and 952022874.4 disclose a method for making a lithographic printing plate comprising the steps of (1) image-wise exposing to light a heat-sensitive imaging element comprising (i) on a hydrophilic surface of a lithographic base an image-forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image-forming layer or a layer adjacent thereto; (2) and developing a thus obtained image-wise exposed element by rinsing it with plain water.
- a heat-sensitive imaging element for making lithographic printing plates comprising on a hydrophilic surface of a lithographic base an image-forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and a compound capable of converting light into heat present in said image-forming layer or a layer adjacent thereto, characterised in that said hydrophobic thermoplastic polymer particles have an average particle size of 40nm to 150nm based on the intensity-weighted size distribution and a polydispersity of less than 0.2.
- imaging element comprises hydrophobic thermoplastic polymer particles that have an average particle size of 40nm to 150nm based on the intensity-weighted size distribution measured with a BI-90 particle Sizer from Brookhaven Instruments Corporation and a polydispersity of less than 0.2.
- Polydispersity has no units. It is small or close to zero (0.0 - 0.2) for nearly monodisperse samples or narrow distributions and it is larger for very broad distributions (>0.2).
- the polydispersity and the average particle size are calculated as described in the manual of the BI-90 Particle Sizer (Catalog Number: BI-9KATMAN, Ver 2.2). More information on laser light scattering and cumulant analysis can be found in the following references: 'Laser Light Scattering', Academic Press, N.Y., 1974; 'Dynamic Light Scattering with Applications to Chemistry, Biology and Physics', Wiley-Interscience, N.Y., 1976; 'Uses and Abuses of PCS in Particle Sizing' in 'Particle Size Distribution, Assessment and Characterization' ACS Symposium Series 332, 1987; Rev.Sci. Instrum., 62(12), 1991, page 2963; 'Proc. S.P.I.E.', 16, 1993, page 1884; Journal of Chemical Physics, 62, 1975, page 1136.
- a heat-sensitive imaging element comprising on a hydrophilic surface of a lithographic base an image-forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder.
- the hydrophilic binder used in connection with the present invention is preferably not crosslinked or only slightly crosslinked.
- the imaging element further includes a compound capable of converting light into heat. This compound is comprised in the image-forming layer or a layer adjacent thereto.
- an imaging element comprising hydrophobic thermoplastic polymer particles with an average particle size of less than 40nm has decreased developability and increased scumming. Furthermore an imaging element comprising hydrophobic thermoplastic polymer particles with an average particle size of more than 150nm has decreased sensitivity and a low throughput.
- an imaging element is provided comprising hydrophobic thermoplastic polymer particles with an average particle size between 40nm and 150nm. More preferably the hydrophilic thermoplastic polymer particles are used with an average particle size of 40nm to 80nm.
- the sensitivity of the imaging element can be improved by using polymer particles that have a polydispersity of less than 0.2.
- thermoplastic polymer particles used in connection with the present invention preferably have a coagulation temperature above 50°C and more preferably above 70°C. Coagulation may result from softening or melting of the thermoplastic polymer particles under the influence of heat.
- the coagulation temperature of the thermoplastic hydrophobic polymer particles there is no specific upper limit to the coagulation temperature of the thermoplastic hydrophobic polymer particles, however the temperature should be sufficiently below the decomposition temperature of the polymer particles.
- the coagulation temperature is at least 10°C below the temperature at which the decomposition of the polymer particles occurs.
- said polymer particles When said polymer particles are subjected to a temperature above the coagulation temperature they coagulate to form a hydrophobic agglomerate in the hydrophilic layer so that at these parts the hydrophilic layer becomes insoluble in plain water or an aqueous liquid.
- hydrophobic polymer particles for use in connection with the present invention have a polydispersity of less than 0.2 and have a Tg above 80°C.
- the polymer particles are selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyacrylonitrile, polyvinyl carbazole etc., copolymers or mixtures thereof. Most preferably used are polystyrene, polymethylmethacrylate or copolymers thereof.
- the weight average molecular weight of the polymers may range from 5,000 to 5,000,000g/mol.
- the polymer particles are present as a dispersion in the aqueous coating liquid of the image-forming layer and may be prepared by the methods disclosed in US-P-3,476,937. Another method especially suitable for preparing an aqueous dispersion of the thermoplastic polymer particles comprises:
- the amount of hydrophobic thermoplastic polymer particles contained in the image-forming layer is preferably at least 30% by weight and more preferably at least 45% by weight and most preferably at least 60% by weight.
- the image-forming layer can also comprise crosslinking agents although this is not necessary.
- Preferred crosslinking agents are low molecular weight substances comprising a methylol group such as for example melamine-formaldehyde resins, glycoluril-formaldehyde resins, thiourea-formaldehyde resins, guanamine-formaldehyde resins, benzoguanamine-formaldehyde resins.
- a number of said melamine-formaldehyde resins and glycoluril-formaldehyde resins are commercially available under the trade names of CYMEL (Dyno Cyanamid Co., Ltd.) and NIKALAC (Sanwa Chemical Co., Ltd.).
- the imaging element further includes a compound capable of converting light to heat.
- This compound is preferably comprised in the image-forming layer but can also be provided in a layer adjacent to the image-forming layer.
- Suitable compounds capable of converting light into heat are preferably infrared absorbing components although the wavelength of absorption is not of particular importance as long as the absorption of the compound used is in the wavelength range of the light source used for image-wise exposure.
- Particularly useful compounds are for example dyes and in particular infrared dyes, carbon black, metal carbides, borides, nitrides, carbonitrides, bronze-structured oxides and oxides structurally related to the bronze family but lacking the A component e.g. WO 2.9 .
- conductive polymer dispersion such as polypyrrole or polyaniline-based conductive polymer dispersions.
- the lithographic performance and in particular the print endurance obtained depends on the heat-sensitivity of the imaging element. In this respect it has been found that carbon black yields very good and favorable results.
- a light-to-heat converting compound in connection with the present invention is most preferably added to the image-forming layer but at least part of the light-to-heat converting compound may also be comprised in a neighbouring layer.
- the lithographic base according to the present invention can be aluminum e.g. electrochemically and/or mechanically grained and anodised aluminum.
- the lithographic base can also comprise a flexible support, such as e.g. paper or plastic film, provided with a cross-linked hydrophilic layer.
- a particularly suitable cross-linked rough hydrophilic layer may be obtained from a hydrophilic binder cross-linked with a cross-linking agent such as formaldehyde, glyoxal, polyisocyanate or preferably a hydrolysed tetra-alkylorthosilicate.
- hydrophilic binder there may be used hydrophilic (co)polymers such as for example, homopolymers and copolymers of vinyl alcohol, acrylamide, methylol acrylamide, methylol methacrylamide, acrylic acid, methacrylic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate or maleic anhydride/vinylmethylether copolymers.
- hydrophilic (co)polymers such as for example, homopolymers and copolymers of vinyl alcohol, acrylamide, methylol acrylamide, methylol methacrylamide, acrylic acid, methacrylic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate or maleic anhydride/vinylmethylether copolymers.
- a cross-linked hydrophilic layer on a flexible support used in accordance with the present embodiment preferably also contains substances that increase the mechanical strength and the porosity of the layer e.g. colloidal silica.
- colloidal silica inert particles of larger size than the colloidal silica can be added e.g. silica prepared according to Stöber as described in J. Colloid and Interface Sci., Vol. 26, 1968, pages 62 to 69 or alumina particles or particles having an average diameter of at least 100 nm which are particles of titanium dioxide or other heavy metal oxides. Incorporation of these particles gives the surface of the cross-linked hydrophilic layer a uniform rough texture consisting of microscopic hills and valleys.
- the thickness of the cross-linked hydrophilic layer may vary in the range of 0.2 to 25 ⁇ m and is preferably 1 to 10 ⁇ m.
- cross-linked hydrophilic layers for use in accordance with the present invention are disclosed in EP-A 601240, GB-P-1419512, FR-P-2300354, US-P-3971660, US-P-4284705 and EP-A 514490.
- plastic film e.g. substrated polyethylene terephthalate film, polyethylene naphthalate film, cellulose acetate film, polystyrene film, polycarbonate film etc.
- the plastic film support may be opaque or transparent.
- An image-forming layer in connection with the present invention comprises thermoplastic polymer particles dispersed in a hydrophilic binder.
- Suitable hydrophilic binders for use in an image-forming layer in connection with this invention are water soluble (co)polymers for example synthetic homo- or copolymers such as polyvinylalcohol, a poly(meth)acrylic acid, a poly(meth)acrylamide, a polyhydroxyethyl(meth)acrylate, a polyvinylmethylether or natural binders such as gelatin, a polysaccharide such as e.g. dextran, pullulan, cellulose, arabic gum, alginic acid.
- water soluble (co)polymers for example synthetic homo- or copolymers such as polyvinylalcohol, a poly(meth)acrylic acid, a poly(meth)acrylamide, a polyhydroxyethyl(meth)acrylate, a polyvinylmethylether or natural binders such as gelatin, a polysaccharide such as e.g. dextran, pullulan, cellulose, arabic gum,
- the hydrophilic binder can also be a water insoluble, alkali soluble or swellable resin having phenolic hydroxy groups and/or carboxyl groups.
- the water insoluble, alkali soluble or swellable resin used in connection with the present invention comprises phenolic hydroxy groups.
- Suitable water insoluble, alkali soluble or swellable resins for use in an image-forming layer in connection with this invention are for example synthetic novolac resins such as ALNOVOL, a registered trade mark of Reichold Hoechst and DUREZ, a registered trade mark of OxyChem and synthetic polyvinylfenols such as MARUKA LYNCUR M. a registered trade mark of Dyno Cyanamid.
- the hydrophilic binder used in connection with the present invention is preferably not cross-linked or only slightly cross-linked.
- the imaging element is image-wise exposed and subsequently developed with an aqueous solution.
- Image-wise exposure in connection with the present invention is preferably an image-wise scanning exposure involving the use of a laser or L.E.D.
- a laser or L.E.D Preferably used are lasers that operate in the infrared or near-infrared, i.e. wavelength range of 700-1500 nm. Most preferred are laser diodes emitting in the near-infrared.
- the imaging element is image-wise exposed and subsequently developed by rinsing it with plain water before mounting the imaging element on the printing press.
- the imaging element is first mounted on the printing cylinder of the printing press and then image-wise exposed directly on the press. Subsequent to exposure, the imaging element can be developed by wiping the image-forming layer with e.g. a cotton pad or sponge soaked with water to remove the non-image forming areas.
- the printing plate of the present invention can also be used in the printing process as a seamless sleeve printing plate.
- the printing plate is soldered in a cylindrical form by means of a laser.
- This cylindrical printing plate which has as diameter the diameter of the print cylinder is slided on the print cylinder instead of applying in a classical way a classically formed printing plate. More details on sleeves are given in "Grafisch Nieuws" , 15, 1995, page 4 to 6.
- a 0.15 mm thick aluminum foil was degreased by immersing the foil in an aqueous solution containing 5 g/l of sodium hydroxide at 50°C and rinsed with demineralized water.
- the foil was then electrochemically grained using an alternating current in an aqueous solution containing 4 g/l of hydrochloric acid, 4 g/l of hydroboric acid and 5 g/l of aluminum ions at a temperature of 35°C and a current density of 1200 A/m 2 to form a surface topography with an average center-line roughness Ra of 0.5 ⁇ m.
- the aluminum foil was then etched with an aqueous solution containing 300 g/l of sulfuric acid at 60°C for 180 seconds and rinsed with demineralized water at 25°C for 30 seconds.
- the foil was subsequently subjected to anodic oxidation in an aqueous solution containing 200 g/l of sulfuric acid at a temperature of 45°C, a voltage of about 10 V and a current density of 150 A/m 2 for about 300 seconds to form an anodic oxidation film of 3.00 g/m 2 of Al 2 O 3 , then washed with demineralized water, posttreated with a solution containing 20 g/l of sodium bicarbonate at 40°C for 30 seconds, subsequently rinsed with demineralized water at 20°C during 120 seconds and dried.
- the grained and anodized lithographic base was then submersed in an aqueous solution containing 5 % w/w of citric acid for 60 seconds, brought at pH 7 with an aqueous solution of sodium hydroxyde 2N for 60 seconds, rinsed with demineralized water and dried at 25°C.
- An imaging element according to the invention was produced by preparing the above described coating composition for the infrared recording layer, coating it onto the above described lithographic base in an amount of 30 g/m 2 (wet coating amount) and drying it at 36°C.
- the imaging elements 1 to 7 were subjected to a scanning infrared NdYlf laser diode emitting at 1064nm (scanspeed 4.4m/s, spot size 15 ⁇ and a varying power on the plate of 75 to 540mW).
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Materials For Photolithography (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP19960203633 EP0849091B1 (fr) | 1996-12-19 | 1996-12-19 | Elément sensible à la chaleur formateur d'image pour la fabrication de plaques d'impression lithographiques comprenant des particules de polymère avec une dimension de particule spécifique |
DE1996612206 DE69612206T2 (de) | 1996-12-19 | 1996-12-19 | Wärme-empfindliches Aufzeichnungselement zur Herstellung lithographischer Druckplatten, Polymerteilchen mit spezifischer Teilchengrössenverteilung enthaltend |
US08/989,469 US6427595B1 (en) | 1996-12-19 | 1997-12-12 | Heat-sensitive imaging element for making lithographic printing plates comprising polymer particles with a specific particle size |
JP36436997A JP4036518B2 (ja) | 1996-12-19 | 1997-12-19 | 特定の粒径を有するポリマー粒子を含む平版印刷版の作製のための感熱性画像形成要素 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP19960203633 EP0849091B1 (fr) | 1996-12-19 | 1996-12-19 | Elément sensible à la chaleur formateur d'image pour la fabrication de plaques d'impression lithographiques comprenant des particules de polymère avec une dimension de particule spécifique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0849091A1 true EP0849091A1 (fr) | 1998-06-24 |
EP0849091B1 EP0849091B1 (fr) | 2001-03-21 |
Family
ID=8224729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960203633 Expired - Lifetime EP0849091B1 (fr) | 1996-12-19 | 1996-12-19 | Elément sensible à la chaleur formateur d'image pour la fabrication de plaques d'impression lithographiques comprenant des particules de polymère avec une dimension de particule spécifique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0849091B1 (fr) |
JP (1) | JP4036518B2 (fr) |
DE (1) | DE69612206T2 (fr) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1038666A2 (fr) * | 1999-03-24 | 2000-09-27 | Fuji Photo Film Co., Ltd. | Précurseur de plaque d'impression lithographique |
EP1057622A2 (fr) * | 1999-06-04 | 2000-12-06 | Fuji Photo Film Co., Ltd. | Précurseur pour plaque lithographique et procédé de manufacture |
EP1080884A1 (fr) * | 1999-08-31 | 2001-03-07 | Agfa-Gevaert N.V. | Plaque lithographique sans traitement avec une nanostructure bien définie |
EP1084830A1 (fr) * | 1999-09-15 | 2001-03-21 | Agfa-Gevaert N.V. | Procédé de fabrication d'un élément thermosensible avec revêtement par pulvérisation |
EP1108533A1 (fr) * | 1999-12-17 | 2001-06-20 | Konica Corporation | Plaque d'impression et sa fabrication |
EP1219416A1 (fr) * | 2000-12-20 | 2002-07-03 | Agfa-Gevaert | Procédé pour la fabrication d'une plaque lithographique avec développement sur presse utilisant un cliché pour impression offset sensible à la chaleur |
US6479216B1 (en) * | 1999-09-15 | 2002-11-12 | Agfa-Gevaert | Method for obtaining a heat sensitive element by spray-coating |
US6485889B1 (en) | 1999-09-15 | 2002-11-26 | Agfa-Gevaert | Method for obtaining a heat sensitive element by spray-coating |
US6551757B1 (en) | 2001-05-24 | 2003-04-22 | Eastman Kodak Company | Negative-working thermal imaging member and methods of imaging and printing |
US6550387B1 (en) | 1999-08-31 | 2003-04-22 | Agfa-Gevaert | Processless thermal printing plate with well defined nanostructure |
US6692890B2 (en) | 2001-04-04 | 2004-02-17 | Kodak Polychrome Graphics Llc | Substrate improvements for thermally imageable composition and methods of preparation |
EP1614538A2 (fr) * | 2004-07-08 | 2006-01-11 | Agfa-Gevaert | Procédé pour la fabrication d'un précurseur de type négatif d'une plaque d'impression lithographique thermosensible |
WO2006037716A1 (fr) * | 2004-10-01 | 2006-04-13 | Agfa Graphics N.V. | Procede de production de plaques d'impression lithographique |
EP1859935A1 (fr) * | 2006-05-24 | 2007-11-28 | Agfa Graphics N.V. | Précurseur de plaque d'impression lithographique thermosensible à action négative |
EP1859936A1 (fr) * | 2006-05-24 | 2007-11-28 | Agfa Graphics N.V. | Procédé de fabrication d'une plaque d'impression lithographique |
WO2007135142A1 (fr) * | 2006-05-24 | 2007-11-29 | Agfa Graphics Nv | Procédé de fabrication d'une plaque d'impression lithographique |
US7316891B2 (en) | 2002-03-06 | 2008-01-08 | Agfa Graphics Nv | Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3704975B2 (ja) * | 1998-11-10 | 2005-10-12 | コニカミノルタホールディングス株式会社 | 製版用の画像形成材料 |
US6884563B2 (en) | 2003-05-20 | 2005-04-26 | Eastman Kodak Company | Thermal imaging material containing combustible nitro-resin particles |
DE602005009765D1 (de) * | 2004-07-08 | 2008-10-30 | Agfa Graphics Nv | Verfahren zur Herstellung einer lithographischen Druckplatte |
DE602005009764D1 (de) * | 2004-07-08 | 2008-10-30 | Agfa Graphics Nv | Verfahren zur Herstellung einer lithographischen Druckplatte |
JP5588887B2 (ja) * | 2010-01-29 | 2014-09-10 | 富士フイルム株式会社 | 平版印刷版の作製方法 |
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GB1419512A (en) | 1972-01-07 | 1975-12-31 | Kodak Ltd | Presensitised lithographic material |
US3971660A (en) | 1974-04-04 | 1976-07-27 | Eastman Kodak Company | Lithographic printing plate comprising hydrophilic layer of polyvinylacetate crosslinked with tetraethylorthosilicate |
FR2300354A1 (fr) | 1975-02-04 | 1976-09-03 | Kodak Pathe | Plaque presensibilisee comprenant u |
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JPH03130942A (ja) * | 1989-10-16 | 1991-06-04 | Ricoh Co Ltd | 光情報記録媒体 |
EP0514145A1 (fr) | 1991-05-14 | 1992-11-19 | Du Pont (UK) Limited | Matériau thermographique |
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EP0620502A1 (fr) | 1993-04-05 | 1994-10-19 | Agfa-Gevaert N.V. | Support lithographique et méthode pour la production d'un cliché d'impression lithographique |
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EP1108533A1 (fr) * | 1999-12-17 | 2001-06-20 | Konica Corporation | Plaque d'impression et sa fabrication |
US6596462B2 (en) | 1999-12-17 | 2003-07-22 | Konica Corporation | Printing plate element and preparation method of printing plate |
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US6551757B1 (en) | 2001-05-24 | 2003-04-22 | Eastman Kodak Company | Negative-working thermal imaging member and methods of imaging and printing |
US7316891B2 (en) | 2002-03-06 | 2008-01-08 | Agfa Graphics Nv | Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution |
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WO2007135151A1 (fr) * | 2006-05-24 | 2007-11-29 | Agfa Graphics Nv | Précurseur de plaque d'impression lithographique thermosensible négative |
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US8133657B2 (en) | 2006-05-24 | 2012-03-13 | Agfa Graphics Nv | Method for making a lithographic printing plate |
US8216769B2 (en) | 2006-05-24 | 2012-07-10 | Agfa Graphics Nv | Negative working, heat sensitive lithographic printing plate precursor |
Also Published As
Publication number | Publication date |
---|---|
EP0849091B1 (fr) | 2001-03-21 |
JP4036518B2 (ja) | 2008-01-23 |
JPH10186646A (ja) | 1998-07-14 |
DE69612206T2 (de) | 2001-09-20 |
DE69612206D1 (de) | 2001-04-26 |
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