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EP2090429A1 - Marquage d'une paque d'impression offset - Google Patents

Marquage d'une paque d'impression offset Download PDF

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Publication number
EP2090429A1
EP2090429A1 EP08101584A EP08101584A EP2090429A1 EP 2090429 A1 EP2090429 A1 EP 2090429A1 EP 08101584 A EP08101584 A EP 08101584A EP 08101584 A EP08101584 A EP 08101584A EP 2090429 A1 EP2090429 A1 EP 2090429A1
Authority
EP
European Patent Office
Prior art keywords
coating material
irradiation
printing
printing form
hardened
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
Application number
EP08101584A
Other languages
German (de)
English (en)
Other versions
EP2090429B1 (fr
Inventor
Matthias Riepenhoff
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik AG
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 Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Priority to EP08101584A priority Critical patent/EP2090429B1/fr
Priority to AT08101584T priority patent/ATE511989T1/de
Publication of EP2090429A1 publication Critical patent/EP2090429A1/fr
Application granted granted Critical
Publication of EP2090429B1 publication Critical patent/EP2090429B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
    • B41C1/1033—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials by laser or spark ablation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/03—Chemical or electrical pretreatment
    • B41N3/036—Chemical or electrical pretreatment characterised by the presence of a polymeric hydrophilic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

  • the invention relates to the imaging of a printing form in an offset printing machine, preferably wet offset, and for this purpose has a method and a device for the subject. Furthermore, it relates to an imaged offset printing form and an offset printing form in a not yet illustrated raw state.
  • the printing press may in particular be a rotary printing press, preferably for web-fed printing. A preferred application is newspaper printing.
  • the machine preferably operates in the coldset, i. the paint is dried by air drying without heating.
  • the printing form can be erased by means of IR irradiation, with the temperature in the near-surface region of the printing form briefly reaching approximately 500 ° C.
  • the problem with the reversibly switchable printing forms are their still short life, so that larger runs can not be printed with the printing plates.
  • a flowable, preferably liquid, coating material is applied to a printing form having a hydrophobic surface in such a way that it wets the printing surface of the printing plate everywhere.
  • the coating material is hardened on the entire surface and forms a hydrophilic surface of the printing plate in the hardened state.
  • the hardened coating material is removed according to the image by means of irradiation, so that the hydrophobic surface of the printing form which lies beneath the coating material is exposed in accordance with the image.
  • a printing plate is obtained which has a color-transferring surface in printing operation, which is composed of a printed image to be transferred from the hydrophilic surface sites formed by the coating material and the exposed hydrophobic surface areas.
  • the material of the printing plate which is generally more resistant to abrasion than the coating material, the color, while the hardened coating material remains free or as preferred the dampening solution leads.
  • the coating material contains hydrophilic groups, preferably amino groups, carboxyl groups, silane groups or other Cruppe-IV compounds or a combination of several or all of these groups or compounds.
  • the coating material may in particular be a lacquer. Paints which are sufficiently hard and stable in the hardened state for the printing operation and form a hydrophilic surface for offset printing are used, for example, as photoinitiators.
  • the coating material can be completely removed by means of a radiation corresponding to the imaging and the printing form can be reimaged in the same way.
  • the method therefore includes, in an advantageous further development, erasing the printed image and re-imaging the printing form.
  • an aqueous coating material is used, ie a coating material with water as solvent.
  • the radiation energy of the image-wise radiation preferably originates from a different wavelength range of the electromagnetic spectrum than the radiation energy serving for hardening. Furthermore, it is advantageous if the irradiation for curing over the surface is uniform, while the imagewise irradiation of the fineness of the print is correspondingly focused, so that each individual pixel of the print image to be generated can be selectively irradiated individually.
  • the radiation energy used for hardening can also be selected from the same wavelength range as the radiation energy of the image-wise irradiation. The radiation may in both cases even have the same wavelength.
  • the same irradiation device can serve for both curing and image-wise irradiation, with at least one radiation parameter of the irradiation device being variable in order to fulfill the dual function.
  • the irradiation apparatus can be used by focusing for imagewise irradiation and defocusing for curing.
  • the power of the irradiation device can also be adjusted to the respective purpose. Another possibility is the variation of the speed with which the printing form moves once upon curing and the other time as the image is irradiated relative to the irradiation device.
  • the printing plate can be thermally irradiated. More preferably, however, it is irradiated with UV or IR light. Accordingly, in preferred embodiments, a lacquer hardening under UV or IR irradiation is used. Since the light in the vicinity of the printing plate, as far as light is present, is not sufficient for the desirable rapid hardening, although in principle a hardening under ambient light is conceivable and also advantageously used, the irradiation is expediently carried out with artificial UV or IR light. which is generated by a UV or IR irradiation device and directed to the printing plate. For the UV radiation, the entire UV wavelength range of 250 to 400 nm comes into question. Preferably, UV radiation from the wavelength range of 350 to 380 nm is used.
  • the coating material is preferably applied in a thickness which is smaller than a maximum length or largest width of an image pixel of the imaged printing plate executed printing process.
  • the thickness of the application layer is preferably at most 10 ⁇ m.
  • the thickness is preferably at least 1 ⁇ m.
  • the coating material may alternatively or in addition to an active irradiation also by simple air drying, i. Heat exchange with the environment, to be dried at room temperature, in particular by convection.
  • simple air drying can already be sufficient, especially for the above-described small layer thickness of the coating material alone for curing.
  • the hardened application material is preferably removed by means of laser irradiation, for example IR laser radiation.
  • the paint is thermally decomposed by this irradiation imagewise (thermal decomposition).
  • the imagewise removal of the coating material immediately produces the printing form which can be used for printing.
  • paint can be applied to the printing plate.
  • the printing form is preferably a printing form for the wet offset printing
  • moisture is applied beforehand in order to wet the hydrophilic areas formed by the coating material with the dampening solution, preferably water, before applying the paint.
  • an aqueous coating material results as a further advantage for a preferred wet offset printing that not or not fully hardened residues of the coating material transported away by a dampening agent used in printing from the printing plate and transferred to the first copy copies and thus the printing form of such residues right at the beginning the pressure is cleaned.
  • the coating material in fine distribution may contain particles that absorb the radiation energy of the imagewise radiation in a special way and thus ensure faster thermal decomposition at the irradiated points.
  • the particles may be dark, preferably black, pigments or consist of one or more other materials which are tuned to the wavelength of the radiation in order to maximize absorption.
  • the printing form at least in a depth region comprising the hydrophobic surface, consists of a material which absorbs a high proportion of the radiation energy of the second irradiation.
  • the printing form may consist in particular of aluminum or preferably of stainless steel.
  • the printing form without the coating material layer according to the invention is also referred to below as a printing plate carrier.
  • the printing plate support made of steel or aluminum or in principle also of another material can be a thin, color-friendly, d. H. hydrophobic surface layer which forms the hydrophobic surface of the printing form.
  • This surface layer may consist, for example, of nickel or copper or an alloy of one of these metals or a combination of such materials, or may contain such materials at least as an essential component.
  • the surface layer may preferably be 1 to 100 .mu.m, preferably 1 to 10 .mu.m thick and be applied, for example, by electroplating.
  • the coating material can be applied directly to the printing form, to be more precise the printing form carrier, for example by spraying. More preferably, the coating material is applied by means of a roller. The coating material can be sprayed onto this paint applicator roll or otherwise applied directly. Advantageously, it is applied by means of a further roller to the application roller forming a transfer nip with the printing forme. It is also advantageous if the coating material is conveyed to the printing form via an axially reciprocating distributor roller.
  • the printing press can have an application device which only serves to apply the coating material. If it is preferably a wet offset printing press, the coating material is preferably applied by means of a fountain applicator which in printing operation promotes the fountain solution required for printing on the printing form.
  • the dampening application device thus also forms a part of the application device for the coating material in a dual function.
  • the one or more or a part of the plurality of dampening rollers can optionally serve either to apply the coating material or to apply the dampening solution by applying the coating material to the dampening roller or one of several dampening rollers and from this is transferred directly or first via one or more dampening rollers on the printing form.
  • the coating material can be advantageously applied directly to a distributor roller of the dampening application device, for example sprayed on.
  • the irradiation for curing can advantageously be a UV or IR irradiation, as already mentioned.
  • the UV or IR radiation may, for example, be generated by one or more UV or IR emitters which extend or extend over the entire width of the surface of the printing form to be irradiated or are axially reciprocable, to be able to irradiate the entire surface.
  • the UV or IR light is guided by means of optical waveguides from a UV or IR light source to the surface of the printing plate.
  • the UV or IR source can supply multiple printing forms simultaneously or sequentially with UV or IR light. In embodiments with such a UV or IR source whose light is coupled centrally into the system of the optical waveguide and brought by them to the surface of the printing plates and emitted to the respective surface.
  • the surface can be pretreated, for example by means of uniform UV irradiation, which can be carried out by means of a further irradiation device or advantageously by means of the irradiation device for curing.
  • a primer may be applied to the hydrophobic surface onto which the coating material is then applied.
  • the imaged printing form is erased by completely removing the imagewise remaining coating material in the printing press by thermal decomposition from the hydrophobic surface.
  • the same irradiation device that previously performs the imaging can be used for the erasure. Upon erasing, this irradiation device can uniformly irradiate the printing plate.
  • a radiation corresponding to the negative print image is conceivable, in which case only the hydrophilic spots of the printing form formed by the paint are selectively irradiated, preferably with an enlarged edge area.
  • the printing press is equipped with a cleaning device with which the printing form can be cleaned after erasing.
  • a cleaning device for example, a washing device in question, by means of which paint residues can be washed off.
  • irradiation devices for curing and for imagewise irradiation, different irradiation devices can be provided, ie an irradiation device for curing and a further irradiation device for imagewise irradiation.
  • the same irradiation device ie the same emitters, can be used both for curing and for imagewise irradiation.
  • the irradiation device is adjustable for the fulfillment of such a dual function.
  • the radiation power or the focusing of the irradiation device can be adjustable in order to apply the radiation uniformly to the surface of the printing plate with a strong focus and preferably high power in accordance with the image and with defocused irradiation device and preferably lower power.
  • a control of the printing press can be set up, preferably programmed, such that the printing form is moved faster during curing than in the case of imagewise irradiation relative to the irradiation device.
  • the ability to speed variation in imaging may be provided alternatively or in combination with the aforementioned variation possibilities.
  • the printing machine is preferably a rotary printing press with color transfer printing cylinders.
  • a printing cylinder can form the printing form immediately. More preferably, however, the printing form is mounted on a printing cylinder, preferably detachable.
  • the printing form can be a sleeve pushed onto the printing cylinder.
  • the invention is particularly suitable for printing forms which are formed as flexible printing plates, as is common nowadays. Such printing plates are easily replaceable if necessary, for example in the case of mechanical damage or wear.
  • the invention also provides the imaged printing form as such and also a printing form blank with the hardened coating material, preferably paint, which covers the surface serving for printing everywhere.
  • a printing form blank simplifies the printing form logistics, since the unimpressed blanks not exactly each place must be assigned in the printing press, but the blanks can be distributed randomly on the printing stations of the printing press.
  • An application device for the coating material is not required when using such blanks.
  • the invention also relates to a device for imaging a printing form in an offset printing press, which is suitable for carrying out the method and accordingly has an application device for the coating material. In the case of a wet offset printing press, it is particularly preferable to use a dampening unit in a double function once for applying the coating material and the other time for applying dampening solution.
  • FIG. 1 shows a printing form cylinder 1, on the cylinder circumference one or more printing plates 2 are arranged.
  • one or more printing plates 2 can be arranged one after the other and one or more printing plates 2 next to one another in the circumferential direction over the circumference of the printing form cylinder 1 in the circumferential direction.
  • the printing form cylinder 1, as also known, on the periphery have a single or more channels into which the printing plate or printing forms each with a Abbug at the leading and trailing end protrude and are secured by clamping.
  • FIG. 1 shows a schematic representation of only a printing plate 2, which is shaped as a sleeve and surrounding the printing form cylinder 1 around the axis of rotation.
  • the printing form or the plurality of printing forms 2 is preferably each formed as a flexible printing plate (s) which is arranged and attached to the printing form cylinder 1 as described.
  • the printing form cylinder 1 is assigned to a transfer cylinder, preferably a blanket cylinder, to which it transfers imagewise during the printing operation.
  • the transfer cylinder forms with a counter-pressure cylinder, preferably a further transfer cylinder with an associated further such printing form cylinder 1, a printing nip for a web to be printed.
  • the impression cylinder may also be a non-printing cylinder, for example a steel cylinder of a satellite printing unit, for example a 9 or 10 printing unit.
  • the printing cylinder 1 is associated with an inking unit 5 and a dampening unit 6, which transfer dampening solution and ink to the printing form 2 and preferably further printing plates 2 during printing operation.
  • the printing form cylinder 2 with the associated transfer cylinder and the inking unit 5 and the dampening unit 6 form a conventional wet offset printing unit.
  • the printing unit further comprises an imaging device for imaging the printing form 2 and preferably further printing plates 2 in the printing press.
  • the imaging device comprises distributed over the circumference of the printing forme cylinder 1 an applicator by means of a liquid coating material, in the embodiment, a paint 3, on the printing form 2 can be applied, a first irradiation device 11 for curing the applied paint 3 and a second irradiation device 12 for imagewise irradiation of the hardened paint 3.
  • the paint application device comprises a spraying device 10 and components of the dampening unit 6.
  • the dampening unit 6 comprises a plurality of rollers, by means of which fountain solution can be conveyed to the printing form 2.
  • the fountain solution passes from a remote in the printing cylinder 1 fountain roller 7 via a closer to the printing form cylinder 1 arranged distributor roller 8 on a fountain solution application roller 9, with the printing form cylinder 1, more precisely with the printing plate 2, a gap forms for the Feuchlstoffübertragung.
  • spraying sprays 10 sprayed the paint 3 on the distributor roller 8, from which a part of the paint 3 on the dampening form roller 9 promoted to the printing plate 2 and another part on the dampening roller 7 is required.
  • the roller sprayed with the varnish 3, in the exemplary embodiment the rubbing roller 8, can be separated from the dampening solution upstream components of the dampening unit, in the embodiment of the dampening roller 7, for example, from the upstream part.
  • the compound is produced after completion of the paint job.
  • the paint application device 8, 9, 10 the paint 3 is applied uniformly distributed over the entire surface of the printing form 2, so that it forms a thin film there.
  • the varnish 3 is an aqueous UV varnish, i. H. a UV-curable lacquer with water as solvent. In the hardened state, the surface of the lacquer 3 is therefore hydrophilic.
  • the printing form 2 is a flexible metal plate, preferably made of steel, which has a hydrophobic surface, on which by means of the paint applicator 8 to 10 of the paint 3 is applied in the form of a thin film.
  • an adhesion promoter can be applied to the hydrophobic surface of the printing form 2 before the application of the lacquer 3 in order to increase the adhesion of the lacquer 3 to the printing form 2.
  • the surface of the printing form 2 can be irradiated before the application of the lacquer 3, for example with UV light, in order to improve the adhesion of the lacquer 3.
  • the first irradiation device 11 is the paint application device 8 to 10 in the direction of rotation of the plate cylinder 1, which is indicated by a direction of rotation arrow downstream. With the irradiation device 11, the entire surface of the printing form 2 can be uniformly irradiated with rotating printing form cylinder 1 to harden the paint 3.
  • the irradiation device 11 is a UV irradiation device according to the choice of the varnish 3.
  • printing form 2 of the entire coating film 3 is cured by crosslinking the polymer chains of the paint 3 under the action of UV radiation, so that in the direction of rotation of the Druclcformzylinders 1 behind the irradiation device 11, a thin, hardened paint film .3 the hydrophobic surface the printing form 2 covered.
  • the second irradiation device 12 is arranged downstream of the first irradiation device 11 in the direction of rotation of the plate cylinder 1.
  • the hard paint 3 is irradiated imagewise and removed at the irradiated points by thermal decomposition, so that the hydrophobic surface of the printing plate 2 is exposed at the irradiated points.
  • the irradiation device 12 is a laser irradiation device. In particular, it can be an irradiation device for irradiation with IR laser light.
  • the EP 1 036 655 A1 discloses exemplary embodiments of the irradiation device 12.
  • FIG. 2 shows a portion of the imaged printing form 2.
  • the hydrophobic surface of the printing form 2 is denoted by 2a.
  • the hydrophilic surface of the hardened lacquer 3 is designated by 3a.
  • the remaining paint spots and the places exposed between them are recognizable.
  • the paint 3 is shown only disproportionately thick for purposes of illustration compared to the printing form 2.
  • the hydrophobic printing form points 2a and the hydrophilic lacquer points 3a together form the printing surface, ie the printed image, of the imaged printing plate 2, 3.
  • the paint supply is stopped, and the dampening solution begins.
  • the inking unit 5 parked during the imaging of the printing form cylinder 1 is set against the printing form cylinder 1 and ink is transferred to the hydrophobic areas 2a.
  • the printing form cylinder 1 performs under dampening solution preferably still a few turns with the inking unit off 5 to remove paint residues, for example, not hardened paint 3, from the surface of the imaged printing plate 2, 3.
  • the print production can be started in a known manner.
  • the inking unit 5 is turned off and the image information of the printing form 2, 3 deleted.
  • the image information ie the printed image composed of the hydrophobic sites 2a and hydrophilic sites 3a
  • the paint spots 3a are removed.
  • the removal can be done again by thermal decomposition.
  • the irradiation device 12 can also be used as a quenching device by the surface of the printing plate 2, 3 is uniformly irradiated or according to the pattern of the paint spots 3a.
  • the or preferably a plurality of lasers of the irradiation device 12 are thus in a double function in such embodiments used both for imagewise irradiation and for erasure.
  • the same printing form 2 can be imaged again in the manner described. Before reprinting the printing form 2 is expediently freed with a cleaning device of the printing of any paint residues.
  • FIGS. 3 and 4 show the application and curing of the varnish 3 in a modification of the application method and on the basis of a modified printing form.
  • the paint 3 is sprayed by means of a spray 10 'directly on the hydrophobic surface of the printing plate.
  • the in FIG. 4 illustrated curing step corresponds to the curing of the described embodiment.
  • the FIGS. 3 and 4 show isolated only a short section of the printing form, which is however arranged on the printing form cylinder 1 as described above in the paint application and all other steps of the imaging.
  • the direction of rotation of the Dmckformzylinders 1 is indicated by a direction of rotation arrow.
  • the paint film 3 passing through the irradiation device 11 is subdivided into a leading region shown hatched and a non-hatched trailing region, the subdivision extending below the irradiation device 11.
  • the shaded area is already hardened, while the unshaded area represents the still uncured paint 3.
  • the curing and imagewise irradiation of the paint 3 correspond to the first embodiment.
  • the modified printing form consists of a flexible support plate 2 made of steel or optionally of aluminum, on which a thin, color-friendly surface layer 4 is applied, for example galvanically.
  • the surface layer 4 forms the hydrophobic surface 4 a of the modified printing plate 2, 4.
  • the surface layer 4 may consist, for example, of nickel, copper or an alloy of these metals.
  • On this printing form 2, 4 is as in FIG. 3 shown directly sprayed the paint 3.
  • the paint applicator 8 to 10 may be provided, which is also given preference over the direct spraying.

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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)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)
EP08101584A 2008-02-13 2008-02-13 Marquage d'une plaque d'impression offset Not-in-force EP2090429B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08101584A EP2090429B1 (fr) 2008-02-13 2008-02-13 Marquage d'une plaque d'impression offset
AT08101584T ATE511989T1 (de) 2008-02-13 2008-02-13 Bebilderung einer offset-druckform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08101584A EP2090429B1 (fr) 2008-02-13 2008-02-13 Marquage d'une plaque d'impression offset

Publications (2)

Publication Number Publication Date
EP2090429A1 true EP2090429A1 (fr) 2009-08-19
EP2090429B1 EP2090429B1 (fr) 2011-06-08

Family

ID=39577486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101584A Not-in-force EP2090429B1 (fr) 2008-02-13 2008-02-13 Marquage d'une plaque d'impression offset

Country Status (2)

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EP (1) EP2090429B1 (fr)
AT (1) ATE511989T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011013910A1 (de) * 2011-03-15 2012-09-20 Richard Grieger Verarbeitungsmaschine mit einer Reinigungseinrichtung und Verfahren zum Betreiben

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734508A1 (de) * 1976-07-30 1978-02-02 Kansai Paint Co Ltd Verfahren zur herstellung einer flachdruckplatte bzw. eines flachdruckblattes
WO1999032275A1 (fr) * 1997-12-18 1999-07-01 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Forme pour la realisation sur rotative d'une impression, d'un recouvrement ou d'une empreinte sur des materiaux en forme de bandes, et procede de realisation d'une telle forme
DE19826377A1 (de) 1998-06-12 1999-12-16 Heidelberger Druckmasch Ag Druckmaschine und Druckverfahren
US6098544A (en) * 1997-04-01 2000-08-08 Creoscitex Corporation Ltd. Short run offset printing member
EP1036655A1 (fr) 1999-03-17 2000-09-20 Maschinenfabrik Wifag Production d'une image sur une plaque d'impression pour l'impression offset humide
US6477955B1 (en) * 1990-11-01 2002-11-12 Creo Il. Ltd. Laser ablatable waterless lithographic printing member
DE102005021346A1 (de) 2004-05-05 2006-02-16 Koenig & Bauer Ag Schaltbare Schicht und Verfahren zum Umschalten der Schicht

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734508A1 (de) * 1976-07-30 1978-02-02 Kansai Paint Co Ltd Verfahren zur herstellung einer flachdruckplatte bzw. eines flachdruckblattes
US6477955B1 (en) * 1990-11-01 2002-11-12 Creo Il. Ltd. Laser ablatable waterless lithographic printing member
US6098544A (en) * 1997-04-01 2000-08-08 Creoscitex Corporation Ltd. Short run offset printing member
WO1999032275A1 (fr) * 1997-12-18 1999-07-01 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Forme pour la realisation sur rotative d'une impression, d'un recouvrement ou d'une empreinte sur des materiaux en forme de bandes, et procede de realisation d'une telle forme
DE19826377A1 (de) 1998-06-12 1999-12-16 Heidelberger Druckmasch Ag Druckmaschine und Druckverfahren
EP1036655A1 (fr) 1999-03-17 2000-09-20 Maschinenfabrik Wifag Production d'une image sur une plaque d'impression pour l'impression offset humide
DE102005021346A1 (de) 2004-05-05 2006-02-16 Koenig & Bauer Ag Schaltbare Schicht und Verfahren zum Umschalten der Schicht

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011013910A1 (de) * 2011-03-15 2012-09-20 Richard Grieger Verarbeitungsmaschine mit einer Reinigungseinrichtung und Verfahren zum Betreiben

Also Published As

Publication number Publication date
ATE511989T1 (de) 2011-06-15
EP2090429B1 (fr) 2011-06-08

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