EP0764522B1 - Compositions et procédé sans emploi de solvants pour la fabrication de plaques lithographiques pour l' enregistrement digitalisé par laser - Google Patents

Compositions et procédé sans emploi de solvants pour la fabrication de plaques lithographiques pour l' enregistrement digitalisé par laser Download PDF

Info

Publication number
EP0764522B1
EP0764522B1 EP96115137A EP96115137A EP0764522B1 EP 0764522 B1 EP0764522 B1 EP 0764522B1 EP 96115137 A EP96115137 A EP 96115137A EP 96115137 A EP96115137 A EP 96115137A EP 0764522 B1 EP0764522 B1 EP 0764522B1
Authority
EP
European Patent Office
Prior art keywords
plate
layer
coating
functionality
oligomers
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.)
Expired - Lifetime
Application number
EP96115137A
Other languages
German (de)
English (en)
Other versions
EP0764522A2 (fr
EP0764522A3 (fr
Inventor
My T. Nguyen
Mikhail Laksin
S. Peter Pappas
Ken-Ichi Shimazu
Robert W. Hallman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Graphics Holding Inc
Original Assignee
Kodak Graphics Holding Inc
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 Kodak Graphics Holding Inc filed Critical Kodak Graphics Holding Inc
Publication of EP0764522A2 publication Critical patent/EP0764522A2/fr
Publication of EP0764522A3 publication Critical patent/EP0764522A3/fr
Application granted granted Critical
Publication of EP0764522B1 publication Critical patent/EP0764522B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • This invention relates to novel, long impression life, digitized laser imageable lithographic printing plates and to the method for their production.
  • the invention especially relates to lithographic printing plates for dry or waterless lithographic printing operations.
  • the invention particularly relates to the production of waterless, laser ablatable lithographic printing plates employing a solventless coating process that substantially reduces the amount of volatile organic components (VOC) released during the process.
  • VOC volatile organic components
  • a printing plate bearing an oleophilic, ink receptive image is first dampened with an aqueous fountain solution to prevent ink from wetting the hydrophilic, non-image bearing areas of the printing plate, after which an oil-based ink is rolled over the plate to selectively coat the now printable image.
  • Conventional planographic printing has some difficulties inherent in having both an oleophilic ink and an aqueous fountain solution conjoined in the same press.
  • Problems include the fountain solution flowing back into the train of inking rollers on the press; control of the delicate balance needed between the amount of ink and the amount of fountain solution applied to the printing plate; fountain solution flowing forward over the offset cylinder, moistening the copy paper and thereby causing its dimensional change; and in the case where printing is imaged directly by electrophotography, the imaged printing plate must be subjected to an etching treatment and the printing operation becomes complicated.
  • US-A-4,259,905 teaches a waterless, contact speed planographic printing plate having an overlaying modified organopolysiloxane polymeric material layer.
  • the plate exhibits enhanced printing endurance and produces prints of low background contamination.
  • US-A-4,342,820 teaches a negative working waterless plate requiring no dampening water for use in negative work which comprises a base substrate, a light releasing photosensitive layer overlaying the base substrate and the silicone rubber layer overlaying the photosensitive layer.
  • a negative working waterless plate requiring no dampening water for use in negative work which comprises a base substrate, a light releasing photosensitive layer overlaying the base substrate and the silicone rubber layer overlaying the photosensitive layer.
  • US-A-3,894,873 teaches a positive working waterless plate comprising a substrate, a light sensitive photoadhesive layer overlaying the substrate and a silicone rubber layer overlaying the photoadhesive layer.
  • a positive working waterless plate comprising a substrate, a light sensitive photoadhesive layer overlaying the substrate and a silicone rubber layer overlaying the photoadhesive layer.
  • US-A-5,339,737, US-A-5,353,705 and US-A-5,351,617 also describe lithographic printing plates suitable for digitally controlled imaging by means of laser devices.
  • laser output ablates one or more plate layers, resulting in an imagewise pattern of features on the plate.
  • Laser output passes through at least one discreet layer and imagewise ablates one or more underlying layer.
  • the image features produced exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas.
  • the ablatable material used in these patents to describe the image is deposited as an intractable, infusible, IR absorptive carbon black or conductive polymer under an IR transparent polymer film. As a consequence, the process of preparing the plate is complicated and the image produced by the ablated polymer on the plate does not yield sharp and distinct printed copy.
  • one objective of the present invention is the development of lithographic plate compositions that are imageable by digital image-inscribing processes.
  • Another object of the present invention is the development of digital imaging lith plate compositions that can be employed in waterless printing processes.
  • Yet another object of the invention is the development of processes to produce the foregoing digitizable, waterless lithographic plates in a solventless system at low VOC.
  • the objectives of the invention have been realized through a series of discoveries relating to the use of solventless polymeric species and/or precursors selected to contain residual crosslinking functionality.
  • the species are converted to an IR laser ablatable polymeric intermediate layer between a substrate and a top coating.
  • the residual crosslinking functionality serves to bond with an oleophobic and hydrophobic top coating used to provide a waterless printing capability that also contains residual crosslinkable functionality.
  • the ablatable layer can also bond with a prime insulating coating which may be deposited on a metallic substrate, if preferred.
  • the resulting coatings on the plate, bound to each other by a crosslinked structure exhibit extraordinary adhesive strength and, thus, high printing impression life. Because the coatings or layers are formed using neat or solventless liquid monomers, oligomers or polymers, VOC emissions are reduced.
  • lithographic plates prepared according to the invention exhibit a combination of properties unique compared to lithographic plates in the art heretofore:
  • the invention comprises a waterless, multilayered lithographic printing plate imageable by laser ablation exhibiting superior impression life and low volatile organic components containing a first solid substrate layer; a second infra-red light absorbing polymeric layer containing crosslinking functionality; a polysiloxane top layer containing crosslinking functionality, wherein said second layer and top layer contain interlayer crosslinking bonds.
  • the plate may contain a prime polymeric layer interposed between the first and second layer.
  • the prime layer also contains crosslinking functionality connected to the second layer plus pigments or dyes to distinguish image bearing and non-image bearing areas of the image-ablated plate.
  • the invention more particularly comprises a layered image recording surface or material produced by a solventless process and imageable by IR laser ablation to provide a desired image.
  • the image recording surface comprises a first infra-red light absorbing polymeric layer containing crosslinked functionality.
  • a second layer comprises a polysiloxane layer containing crosslinked functionality, wherein said first layer and second layer contain interlayer crosslinked bonds.
  • the process for preparing the plate of the invention comprises coating a solid substrate with a solventless mixture of polymerization initiators and polymerizable, liquid monomers, oligomers or polymers having crosslinking functionality.
  • the plate is then exposed to UV light to partially polymerize the coating and form an IR absorbing coating.
  • the partially polymerized coating is coated with a polysiloxane containing crosslinking functionality and the polysiloxane is exposed to UV light to partially polymerize that coating.
  • the plate is thermally treated at elevated temperature for a time sufficient to complete the polymerization and crosslinking reactions.
  • the lithographic printing plate precursor of the invention is constructed of a substrate with two or three layers deposited on the substrate.
  • the substrates which can be used in the instant invention are those having the mechanical strength needed to withstand the rigors of the printing process in which it is used.
  • Solid substrates can be manufactured from metal, wood, film, or composite material. Since the printing process in which the plate is used is a waterless process, the substrate is not restricted to those having a hydrophilic surface as conventionally practiced.
  • the substrate useful in the invention can have either a hydrophilic or hydrophobic surface.
  • An aluminum substrate is preferred in view of its mechanical strength and the familiarity of that substrate to the printing industry.
  • the second layer is a crosslinked polymeric coating that contains unreacted or residual crosslinking functionality as formed.
  • the second coating is initially formed as a partially polymerized coating and polymerization is completed after a top coating is applied to it.
  • An important attribute of the second layer is strong absorption in the infra-red portion of the electromagnetic spectrum - an attribute key to the intended IR ablative role of the layer. Strong IR absorption can be achieved by an appropriate selection of the chemical structure of the polymeric coating, by the addition of pigments or other IR absorbtive chemicals, or both.
  • the coating contains carbon black.
  • the second coating is formed by the polymerization of monomers, oligomers or polymers, or mixture thereof, employing free radical, cationic, anionic or thermal polymerization initiation.
  • liquid monomers, oligomers or polymers are coated on the substrate to avoid the use of volatile organic solvents.
  • the use of liquid monomers, oligomers or polymers provides a process that is solventless, i.e., free of volatile organic components below a boiling point of 150°C. Consequently, the plate production work-place is not adversely affected by the emission of organic solvents.
  • the coating contains polymerization initiators plus pigments, dyes and surfactants as necessary.
  • a particularly useful class of initiators are those photoinitiators which release free radicals or cations when exposed to UV light. Once the second coating has been deposited polymerization is initiated and partially completed by using UV light to release the specific polymerization initiator.
  • Non-limiting examples of photoinitiators that can be used in the invention include Sartomer CD1010 (Sartomer) for polymer precursor systems that polymerize by cationic polymerization and Irgacure 369 (Ciba) and Quantacure ITX (Octel Chemicals) for polymer precursor systems that polymerize by free radical polymerization.
  • Free radical photoinitiators useful in the instant invention are listed in the text of "Chemistry and Technology of U.V. and E.B. Formulations for Coatings, Inks and Paints", P.K.T. Oldring - Editor, SITA Technology LTD., Gardiner House, pp 276-298.
  • photoinitiators include benzoin and benzoin ethers, benzilketals, dialkoxyacetophenone derivatives, hydroxyalkylphenones, aminoalkylphenone derivatives, benzophenone derivatives and 1,2-diketones, among others.
  • Photoinitiators for cationic polymerization as carried out in the instant invention include: aryldiazonium salts, diaryliodonium salts, triarylsulfonium salts, triarylselenonium salts, dialkylphenacylsulfonium salts, dialkyl-4-hydroxyphenylsulfonium salts and ferrocenium salts.
  • the polymer systems and precursors that can be used to form the second layer are limited only to those systems that can undergo polymerization in situ on the plate to yield a polymer or partially polymerized polymer that contains residual crosslinkable functional groups. These functional groups are intended to form crosslinking bonds with similarly available functional groups in the top coating or, in addition, a prime coating.
  • the polymer precursors are applied neat in a liquid state in a mixture that avoids the use of organic solvents.
  • Useful monomers, oligomers or polymers containing crosslinkable functional groups include epoxide, hydroxy, carboxy, isocyanate, acrylate, vinyl, amino, silane, halohydrin, sulfonate, formyl and aliphatic and aromatic acid anhydrides.
  • Especially useful polymers are polyethers containing residual epoxy groups.
  • the top layer consists of a silicone rubber such as a cross-linked diorganopolysiloxane, transparent to infra-red light.
  • a preferred polysiloxane is a divinyl terminated polysiloxane. Polysiloxanes containing glycidyl groups, pendant hydroxy groups or hydro-methyl siloxane can also be used.
  • the polysiloxane includes photoinitiators and crosslinking agents. When exposed to UV light the coating is crosslinked. Subsequent heating completes the polymerization with formation of crosslink bonds between the residual groups of the second and top layers.
  • a prime coating may be deposited first on the substrate plate which is similar to the composition of the second layer except that it does not contain carbon black. Rather, the prime coating contains pigments or dyes which help to distinguish the image formed on the plate by IR laser inscription.
  • the prime coating also serves to provide insulation between the second layer and the aluminum substrate so that heat losses to the substrate are diminished during IR imagewise ablation of the second layer.
  • Example 1 illustrates the preparation and application of the lithographic plate of the invention.
  • the example illustrates the invention using an optional prime coat on the substrate.
  • Polymerization of the coating is initiated cationically by employing photoinitiators which convert to cationic polymerization initiators upon exposure to UV light.
  • composition of the prime coat follows: Ingredients Suppliers Weight(%) Limonene Dioxide Atochem 20 -40 1,3-Butadiene homopolymer internally epoxidized Atochem 20 - 40 Cyracure UVR 6110 Union Carbide 20 - 40 Pigment Sun Chemical 0 - 20 Sartomer CD 1010 Sartomer 2 - 10 Byk-361 Bykchemie 0 - 2
  • Cyracure UVR 6110 is a 3,4-epoxy cyclohexyl methyl-3',4'-epoxy cyclohexyl carboxylate.
  • Sartomer CD1O1O is triarylsulfonium hexafluoroantimonate in propylene carbonate which was used as initiator.
  • Byk-361 is an acrylic polymer which was used as a wetting agent. Pigments or dyes having different color were also used in the formulation to enhance the color contrast between the image and non-image areas.
  • the solution was coated on the smooth aluminum substrate using a wire-wound rod to give a uniform film having a coating weight between 1 and 4 grams per square meter (g/m 2 ). The coated plate was exposed under UV-light between 10 and 30 mJ/cm 2 to partially polymerize the coated film. The prime coat shows good adhesion to the aluminum substrate.
  • the composition of the IR absorbing layer follows.
  • the solution for coating of the IR absorbing layer was prepared by uniformly mixing the following ingredients: Ingredients Suppliers Weight(%) Limonene Dioxide Atochem 20 - 30 1,3-Butadiene homopolymer internally epoxidized Atochem 20 - 30 Cyracure UVR 6110 Union Carbide 20 - 30 Carbon Black 250 Degussa 15 - 30 Sartomer CD 1010 Sartomer 1 - 10 Byk-361 Bykchemie 0 - 2
  • the solution was coated onto the prime coat using a wire-wound rod to give a uniform film having a coating weight between 1 and 2 g/m 2 .
  • the plate was exposed under UV-light between 20 and 80 mJ/cm 2 to partially polymerize the coated film.
  • the IR-absorbing layer exhibited good adhesion to the prime coat formed by exposure to UV-light as a result of crosslinking reactions of the remaining epoxy groups on the surface of the prime coat with the epoxy groups of the IR-absorbing layer.
  • the top layer was prepared to comprise the following composition: Ingredients Suppliers Weight (%) PS-445 United Chemical Tech. 80 - 95 Syl-Off 7367 Dow Corning 1 - 10 PS-072 United Chemical Tech. 1 - 10 Allyl glycidyl ether Aldrich Chemical 1 - 10 Sartomer CD1010 Sartomer 1 - 5
  • PS-445 is a divinyl terminated polysiloxane.
  • Syl-Off 7367 is a mixture of polymethylhydrosiloxane and inhibitor.
  • PS-072 is a platinum-vinylsiloxane complex.
  • the solution was coated onto the IR-absorbing layer using a wire-wound rod to give a uniform film having a coating weight between 1 and 2 g/m 2 .
  • the coated plate was exposed to UV-light between 80 and 200 mJ/cm 2 to crosslink the topmost layer. Finally, the coated plate was placed in the oven at 150 °C for two minutes to complete the crosslinking reactions.
  • the topmost layer exhibits good adhesion to the IR-absorbing layer which results from the crosslinking reactions of the remaining epoxy groups on the surface of the IR-absorbing layer with the glycidyl groups of the topmost layer during exposure to the UV light.
  • Printing images are written on the above plates by using an infrared laser at 830 nm. Upon exposure to the infrared laser light, the IR-absorbing layer was ablated, weakening the silicone top layer bond only over the ablated image area. The weakened surface coating was then rubbed away by using cotton cloth wetted with either water or isopropanol to produce a clean image printable by waterless or dry lithographic printing techniques.
  • the coatings formed on the lithoplates of the invention can be polymerized using any of a variety of known mechanisms for initiation of polymerization reactions: cationic, anionic or free radical initiation.
  • the initiating species can be released to the polymerization media by direct addition to the media or photochemically or thermally as released by a photoinitiator or heat.
  • Example 2 presents an illustration of the invention wherein the polymerization is initiated by free radical initiators, applicable to variations of the invention containing two or three coatings, e.g., prime, IR and top coatings or just IR and top coatings.
  • composition of the prime coat follows: Ingredients Suppliers Weight(%) Viscoat 310 HP SEC 20-30 SR 355 Sartomer 20-30 EB 657 Radcure 20-30 Irgacure 369 Ciba 2-5 Quantacure ITX Octel Chemicals 1-3 EB 360 Radcure 0-2 Diarylide AAA yellow pigment Sun Chemical 0-20
  • Viscoat 310 HP is tripropylene glycol diacrylate
  • SR 355 is tetramethyl propyl tetracrylate.
  • Irgacure 369 and Quantacure ITX are photoinitiators.
  • EB 360 is acrylated silicone. The solution was coated on the smooth aluminum substrate using a wire-wound rod and exposed under UV-light at 200 mJ/cm 2 to give a uniform film having a coating weight between 1 and 4 g/m 2 .
  • composition of the IR absorbing layer follows: Ingredients Suppliers Weight(%) Viscoat 310 HP SEC 20-30 SR 355 Sartomer 20-30 Irgacure 369 Ciba 2-5 P115 Radcure 1 -3 EB657 Radcure 20-30 Darocur 1173 Ciba 2 - 5 Carbon Black 250 Degussa 10 - 20
  • P115 is an acrylated amine.
  • Darocur 1173 and Irgacure 369 are photoinitiators.
  • the solution was coated onto the prime coat using a wire-wound rod. The solution was then exposed to UV light to produce a uniform film. The topmost layer was then coated onto the IR absorbing layer by using a similar coating solution and procedure provided in Example 1. The plate was ablated at 800 mJ/cm 2 by using an infra-red laser which was then subjected to the post cleaning process to produce a printing image.

Claims (19)

  1. Plaque lithographique multicouche, à procédé sans emploi d'eau, pour l'enregistrement par ablation des IR au laser, qui manifeste une durée de vie d'impression supérieure, cette plaque comprenant :
    une première couche de substrat solide ;
    une deuxième couche polymère qui absorbe la lumière infrarouge, porteuse d'une fonction réticulante ;
    une couche supérieure de polysiloxane porteuse d'une fonction réticulante, dans laquelle ladite deuxième couche et la couche supérieure possèdent des liaisons intercouches réticulées.
  2. Plaque lithographique selon la revendication 1, comprenant, en outre, une couche d'accrochage polymère interposée entre lesdites première et deuxième couches, ladite couche d'accrochage contenant une fonction réticulante liée à ladite deuxième couche et des pigments ou des colorants pour distinguer les parties porteuses d'une image des parties non porteuses d'une image de ladite plaque soumise à ablation.
  3. Plaque lithographique selon la revendication 1 ou 2, dans laquelle ladite deuxième couche contient un pigment qui absorbe les ultraviolets dans le spectre visible et les infrarouges.
  4. Plaque lithographique selon la revendication 3, dans laquelle ledit pigment comprend du noir de carbone ou du graphite.
  5. Plaque lithographique selon l'une quelconque des revendications 1 à 4, dans laquelle ladite première couche comprend l'aluminium ou le polyester.
  6. Plaque lithographique selon l'une quelconque des revendications 1 à 5, dans laquelle ladite deuxième couche comprend le produit de la réaction de polymérisation d'un mélange sans solvants d'amorceurs de polymérisation et de monomères, d'oligomères ou de polymères liquides polymérisables.
  7. Plaque lithographique selon la revendication 6, dans laquelle lesdits amorceurs comprennent des photoamorceurs de polymérisation de type cationiques ou radicalaires.
  8. Plaque lithographique selon la revendication 7, dans laquelle lesdits amorceurs radicalaires sont choisis parmi la benzoïne et les éthers benzoïniques, les benzylcétals, les dérivés de la dialcoxyacétophénone, les hydroxyalkylphénones, les dérivés de l'aminoalkylphénone, les dérivés de benzophénones, et les 1,2-dicétones.
  9. Plaque lithographique selon la revendication 7, dans laquelle lesdits amorceurs cationiques sont choisis parmi les sels d'aryldiazonium, les sels de diaryliodonium, les sels de triarylsulfonium, les sels de triarylsélénonium, les sels de dialkylphénacylsulfonium, les sels de dialkyl-4-hydroxyphénylsulfcnium et les sels de ferrocénium.
  10. Plaque lithographique selon la revenàication 6, dans laquelle ledit produit de la réaction est le produit de la polymérisation thermoinduite desdits monomères, oligomères ou polymères liquides.
  11. Plaque lithographique selon la revendication 6, dans laquelle lesdits monomères, oligomères ou polymères possèdent des groupes fonctionnels réticulables comprenant des fonctions époxyde, hydroxy, carboxy, isocyanate, acrylate, vinyle, amino, silane, halohydrine, sulfonate, formyle, et anhydride d'acides aliphatiques et aromatiques.
  12. Plaque lithographique selon la revendication 6, dans laquelle lesdits monomères, oligomères ou polymères contiennent des polyéthers à fonction époxy résiduelle.
  13. Plaque lithographique selon l'une quelconque des revendications 1 à 12, dans laquelle ladite couche supérieure comprend le produit de la réaction de polymérisation d'un mélange sans solvants d'amorceurs de polymérisation et de siloxanes, oligomères siloxane ou polymères siloxane liquides polymérisables.
  14. Plaque lithographique selon la revendication 13, dans laquelle lesdits amorceurs comprennent des amorceurs cationiques ou radicalaires de polymérisation induite par irradiation sous UV.
  15. Plaque lithographique selon la revendication 13, dans laquelle ledit produit de la réaction est le produit de la polymérisation thermoinduite desdits monomères silane, oligomères silane ou polymères silane liquides.
  16. Plaque lithographique selon la revendication 13, dans laquelle ledit polymère silane comprend le polysiloxane à terminaison divinyle.
  17. Procédé sans emploi de solvants pour la fabrication d'une plaque d'impression, de préférence selon la revendication 1, comprenant les étapes qui consistent à
    revêtir un substrat solide avec un mélange sans solvant , absorbant les IR, d'amorceurs de polymérisation et de monomères, oligomères ou polymères liquides polymérisables porteurs d'une fonction réticulante ;
    exposer ledit substrat revêtu à une lumière UV ou à une source de chaleur pour polymériser partiellement le revêtement ;
    revêtir le revêtement partiellement polymérisé avec un polysiloxane porteur d'une fonction réticulante ;
    exposer ledit revêtement polysiloxane à une lumière UV pour polymériser partiellement le revêtement ; et
    soumettre la plaque à un chauffage pour terminer les réactions de polymérisation et de réticulation.
  18. Procédé selon la revendication 17, comprenant l'étape supplémentaire qui consiste à d'abord revêtir le substrat avec un mélange sans solvants d'amorceurs de polymérisation et de monomères, oligomères ou polymères liquides polymérisables porteurs d'une fonction réticulante et contenant des colorants ou des pigments.
  19. Matériau pour l'enregistrement d'une image, multicouche, préparé par un procédé sans emploi de solvants et apte à l'enregistrement par ablation des IR au laser destiné à former une image souhaitée comprenant :
    une première couche polymère qui absorbe la lumière infrarouge, porteuse d'une fonction réticulante ;
    une seconde couche polysiloxane porteuse d'une fonction réticulante, dans laquelle lesdites première et seconde couches possèdent des liaison intercouches réticulées.
EP96115137A 1995-09-22 1996-09-20 Compositions et procédé sans emploi de solvants pour la fabrication de plaques lithographiques pour l' enregistrement digitalisé par laser Expired - Lifetime EP0764522B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53291295A 1995-09-22 1995-09-22
US532912 1995-09-22

Publications (3)

Publication Number Publication Date
EP0764522A2 EP0764522A2 (fr) 1997-03-26
EP0764522A3 EP0764522A3 (fr) 1997-08-06
EP0764522B1 true EP0764522B1 (fr) 2000-03-08

Family

ID=24123713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115137A Expired - Lifetime EP0764522B1 (fr) 1995-09-22 1996-09-20 Compositions et procédé sans emploi de solvants pour la fabrication de plaques lithographiques pour l' enregistrement digitalisé par laser

Country Status (5)

Country Link
EP (1) EP0764522B1 (fr)
AT (1) ATE190267T1 (fr)
CA (1) CA2186177A1 (fr)
DE (1) DE69606941T2 (fr)
ZA (1) ZA967894B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9612233D0 (en) * 1996-06-12 1996-08-14 Horsell Graphic Ind Ltd Lithographic plate
GB9622657D0 (en) 1996-10-31 1997-01-08 Horsell Graphic Ind Ltd Direct positive lithographic plate
GB9720595D0 (en) * 1997-09-30 1997-11-26 Horsell Graphic Ind Ltd Planographic printing
GB9722862D0 (en) 1997-10-29 1997-12-24 Horsell Graphic Ind Ltd Pattern formation
US6022668A (en) * 1998-01-19 2000-02-08 Kodak Polychrome Graphics Llc Positive-working direct write waterless lithographic printing members and methods of imaging and printing using same
DE19908528A1 (de) * 1999-02-26 2000-08-31 Agfa Gevaert Ag Strahlungsempfindliches Aufzeichnungsmaterial zur Herstellung von Wasserlos-Offsetdruckplatten
CA2279299C (fr) * 1999-07-29 2008-11-25 American Dye Source, Inc. Plaques d'impression lithographique sans eau par procede thermique
US6132933A (en) * 1999-07-30 2000-10-17 American Dye Source, Inc. Thermal waterless lithographic printing plates
CN111393699A (zh) * 2020-05-06 2020-07-10 常州祎唯诺塑业有限公司 一种阻燃离型膜及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1489308A (en) * 1974-03-18 1977-10-19 Scott Paper Co Laser imagable dry planographic printing plate blank
US5804353A (en) * 1992-05-11 1998-09-08 E. I. Dupont De Nemours And Company Lasers engravable multilayer flexographic printing element
US5440987A (en) * 1994-01-21 1995-08-15 Presstek, Inc. Laser imaged seamless lithographic printing members and method of making

Also Published As

Publication number Publication date
EP0764522A2 (fr) 1997-03-26
ATE190267T1 (de) 2000-03-15
ZA967894B (en) 1997-04-07
CA2186177A1 (fr) 1997-03-23
DE69606941D1 (de) 2000-04-13
EP0764522A3 (fr) 1997-08-06
DE69606941T2 (de) 2000-06-29

Similar Documents

Publication Publication Date Title
AU725426B2 (en) Method of lithographic imaging with reduced debris-generated performance degradation and related constructions
US6413700B1 (en) Masked presensitized printing plate intermediates and method of imaging same
US6298780B1 (en) Plateless printing system
JP3569032B2 (ja) リソグラフ印刷版の画像形成方法
US5992322A (en) Waterless lithographic printing plate having a cyanoacrylate image
US20020139270A1 (en) Offset printing plate for direct inkjet CTP
US20030159607A1 (en) Method for the preparation of lithographic printing plates
EP0764522B1 (fr) Compositions et procédé sans emploi de solvants pour la fabrication de plaques lithographiques pour l' enregistrement digitalisé par laser
JP2004017303A (ja) 平版印刷版材料および平版印刷版材料の固定方法
US20020011167A1 (en) Plateless printing system
CN107407885B (zh) 印刷版用硅酮组合物、平版印刷版原版、平版印刷版和印刷物的制造方法
EP1120247A2 (fr) Procédé de fabrication d'une plaque d'impression, la plaque d'impression et procédé de formation d'image
US5849464A (en) Method of making a waterless lithographic printing plate
EP1157827B1 (fr) Ordinateur à plaque par jet d'encre
JP2000037968A (ja) 平版印刷版用原版、これを用いた平版印刷版の製版方法および平版印刷版用原版の製造方法
EP1299236B1 (fr) Utilisation d'uv pour former et decomposer un element d'impression
JP6308222B2 (ja) 印刷物の製造方法
US6006667A (en) Method of lithographic imaging with reduced debris-generated performance degradation and related constructions
JPH04263994A (ja) 平版印刷版及びその製造方法
US6427597B1 (en) Method of controlling image resolution on a substrate
EP1220750B1 (fr) Systeme d'imprimerie sans plaque
JP6930145B2 (ja) 印刷版用シリコーン組成物、並びに平版印刷版原版、平版印刷版および印刷物の製造方法
JPH11352673A (ja) 直描型水なし平版印刷版原版
Huang Technology overview on computer-to-waterless plates (CTWP)
JPH11240273A (ja) 感熱性画像形成要素及びそれを用いる平版印刷版の作製方法

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HALLMAN, ROBERT W.

Inventor name: SHIMAZU, KEN-ICHI

Inventor name: PAPPAS, S. PETER

Inventor name: LAKSIN, MIKHAIL

Inventor name: NGUYEN, MY T.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

17P Request for examination filed

Effective date: 19980116

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KODAK POLYCHROME GRAPHICS LLC

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19990204

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000308

Ref country code: NL

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

Effective date: 20000308

Ref country code: LI

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

Effective date: 20000308

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20000308

Ref country code: FI

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

Effective date: 20000308

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000308

Ref country code: CH

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

Effective date: 20000308

Ref country code: BE

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

Effective date: 20000308

Ref country code: AT

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

Effective date: 20000308

REF Corresponds to:

Ref document number: 190267

Country of ref document: AT

Date of ref document: 20000315

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69606941

Country of ref document: DE

Date of ref document: 20000413

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

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

Effective date: 20000608

Ref country code: DK

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

Effective date: 20000608

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: FR

Payment date: 20020910

Year of fee payment: 7

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

Ref country code: GB

Payment date: 20020918

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20020925

Year of fee payment: 7

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

Ref country code: GB

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

Effective date: 20030920

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

Ref country code: DE

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

Effective date: 20040401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030920

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

Ref country code: FR

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

Effective date: 20040528

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST