EP0096275B1 - Plaque intaglio pour serrage sur un cylindre de montage et procédé pour sa fabrication - Google Patents

Plaque intaglio pour serrage sur un cylindre de montage et procédé pour sa fabrication Download PDF

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Publication number
EP0096275B1
EP0096275B1 EP83105073A EP83105073A EP0096275B1 EP 0096275 B1 EP0096275 B1 EP 0096275B1 EP 83105073 A EP83105073 A EP 83105073A EP 83105073 A EP83105073 A EP 83105073A EP 0096275 B1 EP0096275 B1 EP 0096275B1
Authority
EP
European Patent Office
Prior art keywords
plate
layer
printing
polymeric
areas
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
Application number
EP83105073A
Other languages
German (de)
English (en)
Other versions
EP0096275A2 (fr
EP0096275A3 (en
Inventor
Heinz Mohr
Horst Dr. Hoffmann
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.)
BASF SE
Original Assignee
BASF SE
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Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0096275A2 publication Critical patent/EP0096275A2/fr
Publication of EP0096275A3 publication Critical patent/EP0096275A3/de
Application granted granted Critical
Publication of EP0096275B1 publication Critical patent/EP0096275B1/fr
Expired legal-status Critical Current

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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
    • B41C1/18—Curved printing formes or printing cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1281—Devices for attaching printing elements or formes to supports for attaching flexible printing formes details of the printing plate ends
    • 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
    • B41N1/16—Curved printing plates, especially cylinders
    • B41N1/22—Curved printing plates, especially cylinders made of other substances
    • 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
    • B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising

Definitions

  • the present invention relates to an intaglio printing plate with a polymeric printing layer applied to a dimensionally stable, flexible support, which is suitable for clamping onto an intaglio clamping cylinder.
  • the invention further relates to a method for producing such an intaglio printing plate.
  • a plastic layer For the production of gravure printing plates with plastic printing layers, one can either apply a plastic layer to a suitable printing layer support and form the ink-absorbing depressions (cups) in the plastic layer by mechanical engraving (cf. e.g. DE-OS 27 52 500) or one is based on a light-sensitive recording material with a photopolymerizable layer applied to a dimensionally stable support, which is used e.g. B. by a raster or line positive or a halftone positive with Mariehungsraster template exposed imagewise with actinic light and then washing the unexposed portions of the layer with formation of the cell and raster structure using a developer liquid (cf. e.g. DE-OS 20 54 833, DE-OS 20 61 287, JA-PS 41361/72, DE-OS 31 28 949 and DE-OS 31 28 951).
  • a developer liquid cf. e.g. DE-OS 20 54 833, DE-OS 20 61 287, JA-PS 4
  • rotogravure plates are generally clamped onto a cylinder base body using a suitable clamping device.
  • clamping cylinders with a cylinder channel with means for fastening and clamping the printing plates are known and are also described in the literature (cf., for example, US-A-2 157 621).
  • US-A-3 191 532 describes a method for mounting thin printing plates on a cylinder for rotary printing. After clamping the printing plate, a clear gap remains in the clamping area in the clamping area, which is not closed. Obviously this publication does not concern gravure printing. The special problems which arise when clamping gravure printing plates onto a cylinder are not addressed in US Pat. No. 3,191,532; there is also no indication of their solution. Rather, the method for mounting printing plates on cylinders shown in US Pat. No. 3,191,532 is unsuitable for gravure printing.
  • the present invention was based on the object of producing in a simple manner an intaglio printing plate with a plastic printing layer which can be easily and easily clamped onto intaglio clamping cylinders without the formation of an annoying gap.
  • intaglio printing plates can be produced simply if, in the case of an intaglio printing plate, the polymeric printing layer, which is adherently attached to a dimensionally stable, flexible support, is removed from the support in the areas of the intaglio printing plate which are used to secure the plate to the Serve clamping cylinders and must be folded over for this.
  • the invention accordingly relates to a method for producing intaglio printing plates with a polymeric printing layer applied to a dimensionally stable, flexible support for mounting on an intaglio clamping cylinder, which is characterized in that the polymeric printing layer is removed from the areas of the support to be edged for mounting.
  • the invention further relates to the gravure printing plates produced in this way, suitable for clamping onto a clamping cylinder, in which the support is free of the polymeric printing layer in the areas to be folded over for clamping.
  • the invention furthermore relates to special embodiments of the method and the intaglio printing plates as described below.
  • the rotogravure plates according to the invention can be easily and easily attached to the conventional rotogravure clamping cylinders.
  • the polymeric printing layer in these intaglio printing plates extends only over the actual printing surface corresponding to the cylinder circumference.
  • conventional intaglio printing plates in which the polymeric printing layer extends over the entire length of the printing plate and is accordingly folded over onto a tensioning cylinder and inserted into the cylinder gap,
  • the polymeric printing layer has a layer thickness in the range from approximately 100 to 500 .mu.m, since a particularly good gap seal is then achieved.
  • the edging line running across the width of the printing plate can run perpendicular to the longitudinal sides of the printing plate and thus, after clamping, parallel to the cylinder axis;
  • these fold lines, up to which the polymeric printing layer is removed from the carrier run somewhat obliquely to the cylinder axis, i. H. not exactly perpendicular to the long sides of the pressure plate.
  • the supports for the rotogravure plates according to the invention which are known and known per se are dimensionally stable and flexible support materials, in particular plate-shaped steel or aluminum sheets, but also, if appropriate, suitable plastic films.
  • the polymeric printing layer which is applied adherently to the carrier, for example by means of a suitable adhesion promoter, can be a simple plastic layer, such as is used for. B. is described in DE-OS 27 52 500, in which the ink-receiving recesses are mechanically engraved.
  • this printing layer is preferably a photopolymeric layer which has been produced by imagewise exposure and development of a photopolymerizable layer of a mixture of a polymeric binder, photopolymerizable, ethylenically unsaturated monomers and / or oligomers and a photoinitiator compatible therewith (cf. DE-OS 20 54 833, DE-OS 20 61 287, DE-OS 3 128 949 and DE-OS 31 28 951
  • the removal of the polymeric printing layer from the areas of the carrier that are to be folded over for fastening on the tensioning cylinder is advantageously carried out before the actual folding and can be done mechanically, for example, by cutting, milling or engraving.
  • the rotogravure plates according to the invention can be produced particularly easily and simply, in particular with the required accuracy and precision, if one starts from a light-sensitive recording material with a photopolymerizable layer of the type mentioned and described above adhered to a dimensionally stable, flexible support.
  • the photosensitive recording materials as described in DE-OS 31 28 949, to which reference is made here for details on the composition of these recording materials and on the production of gravure forms, have proven to be very advantageous.
  • the intaglio printing plates according to the invention are produced by means of these light-sensitive recording materials by, in a manner known per se, the photopolymerizable layer for producing the printing layer by means of a suitable template, e.g. B. by a raster or line positive or a halftone positive with a guide raster template, imagewise exposed to actinic light and the unexposed portions of the layer using a suitable developer liquid in the formation of the raster and cell structure the unexposed portions, but not the exposed portions of the layer, are soluble, washed out and removed.
  • a suitable template e.g. B. by a raster or line positive or a halftone positive with a guide raster template
  • imagewise exposed to actinic light and the unexposed portions of the layer using a suitable developer liquid in the formation of the raster and cell structure the unexposed portions, but not the exposed portions of the layer, are soluble, washed out and removed.
  • the exposure of the photopolymerizable layer is carried out in such a way that the photopolymerizable layer remains unexposed in the areas which are later to be folded over for clamping the printing plate, so that the photopolymeric layer in these areas is washed out with the developer liquid is removed at the same time as the remaining unexposed portions of this layer.
  • the exposure of the photopolymerizable layer is preferably carried out via a register. An intaglio printing plate according to the invention is thus obtained directly, in which the areas of the support to be folded over for clamping onto the tensioning cylinder are free of the polymeric printing layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Claims (10)

1. Procédé de confection de clichés ou formes d'impression en taille douce ou gravure en creux ou en héliogravure, comportant une couche d'impression polymère appliquée sur un support souple ou flexible et de dimensions stables, destinés à l'assujettissement à un cylindre de montage, caractérisé en ce que l'on élimine la couche d'impression polymère des zones à plier à arête vive pour l'assujettissement.
2. Procédé suivant la revendication 1, caractérisé en ce que l'on élimine la couche d'impression polymère des zones du support à plier à arête vive avant le pliage à arête vive.
3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que la ligne de pliage à arête vive se prolongeant sur la largeur du cliché ou forme d'impression s'étend en oblique ou de travers par rapport aux côtés longitudinaux de la forme ou du cliché d'impression.
4. Procédé suivant les revendications 1 à 3, caractérisé en ce que la couche d'impression polymère possède une épaisseur qui varie d'environ 100 à 500 µm.
5. Procédé selon les revendications 1 à 4, caractérisé en ce que l'on opère au départ d'un matériau d'enregistrement photosensible comportant une couche photopolymérisable appliquée sur un support souple ou flexible de dimensions stables, on insole la couche photopolymérisable en conformité d'image en vue de l'obtention de la couche d'impression, à l'aide d'une lumière actinique, à travers un original positif approprié, puis on procède au dépouillement des parties non insolées de la couche à l'aide d'un liquide de développement dans lequel les parties non insolées de la couche sont solubles, alors que les parties insolées ne le sont pas et on élimine ou enlève la couche jusqu'au support dans les zones qui doivent être pliées à arête vive en vue de l'assujettissement au cylindre de montage.
6. Procédé suivant la revendication 5, caractérisé en ce que l'on insole la couche photopolymérisable de telle manière qu'elle demeure non insolée dans les zones à plier à arête vive et ces zones sont simultanément enlevées au cours du dépouillement à l'aide du liquide de développement.
7. Procédé suivant la revendication 6, caractérisé en ce que l'on entreprend l'insolation de la couche photopolymérisable selon un registre.
8. Forme ou cliché d'impression en taille douce ou gravure en creux ou en héliogravure, destiné à l'assujettissement à un cylindre de montage et comportant une couche d'impression polymère appliquée sur un support souple ou flexible et de dimensions stables, caractérisé en ce que le support est débarrassé de la couche d'impression polymère dans les zones à plier à arête vive en vue de l'assujettissement au cylindre de montage.
9. Forme ou cliché d'impression suivant la revendication 8, caractérisé en ce que la couche d'impression polymère possède une épaisseur qui varie dans la plage d'environ 100 à 500 wm.
10. Forme ou cliché d'impression suivant les revendications 8 et 9, caractérisé en ce que la ligne de pliage à arête vive se prolongeant sur la largeur de la forme ou cliché d'impression, jusqu'à laquelle le support est débarrassé de la couche d'impression polymère, s'étend en oblique ou de travers par rapport aux côtés longitudinaux de la forme ou cliché d'impression.
EP83105073A 1982-06-04 1983-05-21 Plaque intaglio pour serrage sur un cylindre de montage et procédé pour sa fabrication Expired EP0096275B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823221206 DE3221206A1 (de) 1982-06-04 1982-06-04 Tiefdruckplatte zum aufspannen auf einen tiefdruck-spannzylinder und verfahren zu ihrer herstellung
DE3221206 1982-06-04

Publications (3)

Publication Number Publication Date
EP0096275A2 EP0096275A2 (fr) 1983-12-21
EP0096275A3 EP0096275A3 (en) 1986-03-12
EP0096275B1 true EP0096275B1 (fr) 1988-07-27

Family

ID=6165379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105073A Expired EP0096275B1 (fr) 1982-06-04 1983-05-21 Plaque intaglio pour serrage sur un cylindre de montage et procédé pour sa fabrication

Country Status (3)

Country Link
EP (1) EP0096275B1 (fr)
JP (1) JPS58224795A (fr)
DE (2) DE3221206A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1231223B (it) * 1987-09-11 1991-11-26 Cerutti Spa Off Mec Metodo per giuntare le estremita' di una lastra per la stampa rotativa e giunzione cosi' ottenuta

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285116A (en) * 1938-10-12 1942-06-02 Interchem Corp Printing plate
US3191532A (en) * 1963-12-26 1965-06-29 Miehle Goss Dexter Inc Plate clamping mechanism for rotary printing press
US3413706A (en) * 1964-05-11 1968-12-03 Paper Converting Machine Co Printing plate preparation
DE2003325A1 (de) * 1970-01-26 1971-08-19 Leo Heinrichson Verfahren und Vorrichtung zum Korrigieren von lichtempfindlichen Platten,Filmen oder Folien
US3765329A (en) * 1971-09-28 1973-10-16 A Kirkpatrick Cylinder cover fastening devices
US3973496A (en) * 1973-10-29 1976-08-10 Ball Corporation Apparatus for mounting and locking printing plates

Also Published As

Publication number Publication date
DE3377481D1 (en) 1988-09-01
EP0096275A2 (fr) 1983-12-21
EP0096275A3 (en) 1986-03-12
JPS58224795A (ja) 1983-12-27
JPH0249640B2 (fr) 1990-10-30
DE3221206A1 (de) 1983-12-08

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