EP1230089B1 - Inking plate for rotary printing machine and process of production of an inking plate - Google Patents

Inking plate for rotary printing machine and process of production of an inking plate Download PDF

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Publication number
EP1230089B1
EP1230089B1 EP00960283A EP00960283A EP1230089B1 EP 1230089 B1 EP1230089 B1 EP 1230089B1 EP 00960283 A EP00960283 A EP 00960283A EP 00960283 A EP00960283 A EP 00960283A EP 1230089 B1 EP1230089 B1 EP 1230089B1
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EP
European Patent Office
Prior art keywords
plate
inking
layer
cylinder
pvc
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Expired - Lifetime
Application number
EP00960283A
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German (de)
French (fr)
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EP1230089A1 (en
EP1230089B8 (en
Inventor
Raffaele Fina
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KBA Notasys SA
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KBA Giori SA
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Publication date
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Publication of EP1230089B8 publication Critical patent/EP1230089B8/en
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    • 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
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the present invention relates to an inking plate for rotary printing machine, intended to be mounted on a cylinder, formed at least of a plate of base and material deposited on said plate, said material being intended to be cut into zones in relief whose contours correspond to those of surfaces to be inked.
  • the present invention relates to also a printing machine comprising such a printing plate mounted on a cylinder and a process for producing such a plate.
  • inking plates mounted on cylinders are known in the field of machines rotary printing whatsoever for inking direct or indirect.
  • a collector-inking cylinder is used on which the necessary ink is transferred from cylinders selectors, also called ink cylinders.
  • Ink cylinders, inkers is associated with an inkwell determined and therefore to a given color.
  • the collecting cylinder then transfers the ink corresponding to the different colors on the plates printing.
  • direct inking in however, the ink is transferred to the plates printing directly from the ink cylinders, without using a collecting cylinder.
  • Inking cylinders in a manner known in the art anterior, have a hard material surface, for example plastic, metal or hard rubber, this surface being cut so as to form zones in relief whose contours correspond exactly to those of the areas to be printed in a given color. These raised areas are formed by known means of cutting, for example the laser.
  • Such rollers inkers are described for example in the request for European patent EP 0 406 157 or in the US patent 5,282,417 which shows such mounted ink rollers in a printing machine using both direct and indirect inking techniques.
  • a first solution to remedy some of these disadvantages is to use plates ink system with a photopolymer coating mount on cylinders replacing cylinders known inkers. We can thus prepare these plates independently, in particular by forming the zones in relief using a photoengraving process, but these photopolymeric plates also have disadvantages.
  • the diameter of the cylinders on which the plates will be climbs also has an influence on the deformation. The service life of these photopolymer plates, in addition to their price is also unfavorable.
  • the temperature may be high, the service life of these photopolymer plates is much lower than that of the ink cylinders mentioned above.
  • photopolymeric material has elasticity lower than that of the materials used for inking cylinders so that inking is sometimes insufficient, especially in a direct inking process.
  • the object of the invention is to improve the systems known inks.
  • the invention aims to offer an inking plate that addresses disadvantages of known plates.
  • the invention also aims to propose a method for producing such an inking plate, a cylinder inking bearing such an inking plate and a rotary printing machine using such inking plate.
  • the inking plate according to the invention is defined by the characterizing part of claim 1.
  • Claims 2 to 6 define modes specific execution of the inking plate.
  • Independent claim 7 defines a cylinder printing machine inker comprising at least one anchor plate according to the invention, and claim independent 8 a printing machine comprising at minus such a cylinder.
  • Independent claim 9 defines a method of production of a plate according to the invention.
  • Figure 1 is a schematic sectional view of a rotary printing machine using both direct and indirect inking techniques.
  • Figure 2 is a sectional view of a plate according the invention.
  • Figure 3 is a schematic sectional view of a ink cylinder carrying a plate according to the invention.
  • Figure 4 shows a sectional view of a plate of base mounted on a preparation cylinder for deposit layers.
  • Figure 5 is a block diagram illustrating the method of production of an inking plate according to the invention.
  • the printing machine shown in Figure 1 is a convertible intaglio printing machine which allows the use of a direct inking process or indirect.
  • This machine includes three modules I, II and III, direct inking being carried out in module I which includes a printing cylinder 1, a cylinder plate holder 2, a wiping cylinder 3 and a cylinder ink pad 4 associated with an ink pad 5.
  • Indirect ink is achieved by modules II and III, which include a collector-inking cylinder 6 inked by cylinders inkers 7 located in module II associated with inkwells 8.
  • modules II and III which include a collector-inking cylinder 6 inked by cylinders inkers 7 located in module II associated with inkwells 8.
  • the patterns corresponding to the raised areas of the cylinders inkers 7 are collected on the collector-ink cylinder 6 then are transferred from this cylinder manifold 6 on the plate cylinder 2.
  • Such a rotary printing machine is known from US patent 5,282,417 for example, incorporated by reference into the this request.
  • FIG. 2 An inking plate according to the invention is shown in section in FIG. 2.
  • This inking plate 10 is consisting of a base plate 11, preferably in metal for example stainless steel, having two ends 12, 13 provided for its attachment to a cylinder 17 (see figure 3).
  • base plate 11 On base plate 11, we first deposited a layer of glue 14 which covers the surface of the plate 11 with the exception of the two ends 12, 13 used for fixing.
  • a first layer 26 was then deposited of a first composition of PVC and over this first layer 26, a second layer 15 is deposited a second PVC composition in which reliefs 16 have been carved. These reliefs 16 exactly match the plate patterns which must be inked in a specific color.
  • this two-layer PVC plate is used for direct inking, the second layer 15 being softer than the first layer 26 of PVC.
  • FIG. 3 illustrates, schematically, the plate inking 10 mounted on an inking cylinder 17.
  • the plate 10 which corresponds to that of FIG. 2, includes the base plate 11, the adhesive layer 14, the two layers 26 and 15 of PVC, reliefs 16 having were cut in layer 15.
  • the ends 12 and 13 of base plate 11 are held in a pit 18 of cylinder 17 by an appropriate fixing system, for example pliers (not shown).
  • the system for fixing plates to a cylinder is known in the field of rotary printing machines.
  • patent EP 0 403 434 which is incorporated with reference to the present application, shows such fixing system for mounting in the pit of a plate cylinder.
  • Such an inking cylinder 17 is then mounted in a printing machine as shown in figure 1, preferably in place of cylinder 4 for direct inking, as shown above.
  • FIG. 4 shows an inking plate in preparation, mounted on a preparation cylinder 20 suitable for the removal of successive layers, said cylinder being mounted on a support 22.
  • the base plate 11 is mounted on this preparation cylinder 20 and maintained in position by a clamp system, shown schematically by the reference 23, located in the pit 21 of said cylinder 20.
  • the clamp system used can be the one described above or any other system equivalent.
  • Said pit 21 is then closed by a cover 24 to prevent glue and PVC from entering enter.
  • the cover 24 is fixed by screws 25 or by other equivalent means.
  • the outer layer of PVC 27 is harder than layer 15 of Figures 2 and 3, for plates used in a direct inking process.
  • the absence of glue on the cover 24 means that the PVC layer does not adhere on it and to remove the plate 10, it suffices to cut longitudinally, in the axial direction of cylinder 20, the PVC along the edges of the cover to remove layers of PVC covering said cover 24. It is then possible undo the means for fixing the cover 24 and access the fixing means 23 of the plate 10 on cylinder 20 and remove plate 10.
  • PVC compositions are as follows.
  • the applied thickness of the layer 15 of PVC will be 5 mm which can be deposited in two consecutive phases, each corresponding to a thickness of about 2.5 mm.
  • the thickness of layer 26 or 27 can be 3 mm about.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Ink Jet (AREA)

Abstract

An inking plate for a rotary printing machine mounting on a cylinder is provided. The inking plate is formed of at least a base plate (11) and a PVC composition material of at least one layer (15; 27) deposited on said base plate (11) over a majority of the surface of the base plate (11). The surface of the deposited material is designed to be cut so as to define relief surfaces (16) having limits corresponding to the outlines of surfaces to be inked. The cutting of the deposited material occurs when the base plate (11) is held in a cylindrical form so as to permit mounting on the cylinder without substantial deformation, from an as-cut state, of the base plate (11) or the deposited material.

Description

La présente invention concerne une plaque d'encrage pour machine d'impression rotative, destinée à être montée sur un cylindre, formée au moins d'une plaque de base et de matière déposée sur ladite plaque, ladite matière étant destinée à être découpée en zones en relief dont les contours correspondent à ceux des surfaces à encrer. La présente invention concerne également une machine d'impression comportant une telle plaque d'impression montée sur un cylindre et un procédé de production d'une telle plaque.The present invention relates to an inking plate for rotary printing machine, intended to be mounted on a cylinder, formed at least of a plate of base and material deposited on said plate, said material being intended to be cut into zones in relief whose contours correspond to those of surfaces to be inked. The present invention relates to also a printing machine comprising such a printing plate mounted on a cylinder and a process for producing such a plate.

Ces plaques d'encrage montées sur des cylindres d'encrage sont connues dans le domaine des machines d'impression rotatives que ce soit pour de l'encrage direct ou indirect. Dans le cas de l'encrage indirect, on utilise un cylindre collecteur-encreur sur lequel l'encre nécessaire est transférée depuis des cylindres sélecteurs, appelés aussi cylindres encreurs. Chacun de ces cylindres, encreurs est associé à un encrier déterminé et par conséquent à une couleur donnée. Le cylindre collecteur transfère ensuite l'encre correspondant aux différentes couleurs sur les plaques d'impression. Dans le cas de l'encrage direct en revanche, l'encre est transférée sur les plaques d'impression directement depuis les cylindres encreurs, sans utiliser de cylindre collecteur.These inking plates mounted on cylinders are known in the field of machines rotary printing whatsoever for inking direct or indirect. In the case of indirect inking, a collector-inking cylinder is used on which the necessary ink is transferred from cylinders selectors, also called ink cylinders. Each of these cylinders, inkers is associated with an inkwell determined and therefore to a given color. The collecting cylinder then transfers the ink corresponding to the different colors on the plates printing. In the case of direct inking in however, the ink is transferred to the plates printing directly from the ink cylinders, without using a collecting cylinder.

Les cylindres encreurs, de manière connue dans l'art antérieur, ont une surface en matière dure, par exemple plastique, métal ou encore caoutchouc durci, cette surface étant taillée de manière à former des zones en relief dont les contours correspondent exactement à ceux des zones à imprimer dans une couleur donnée. Ces zones en relief sont formées par des moyens connus de découpage, par exemple le laser. De tels rouleaux encreurs sont décrits par exemple dans la demande de brevet européen EP 0 406 157 ou dans le brevet US 5,282,417 qui montre de tels rouleaux encreurs montés dans une machine d'impression utilisant à la fois des techniques d'encrage direct et indirect.Inking cylinders, in a manner known in the art anterior, have a hard material surface, for example plastic, metal or hard rubber, this surface being cut so as to form zones in relief whose contours correspond exactly to those of the areas to be printed in a given color. These raised areas are formed by known means of cutting, for example the laser. Such rollers inkers are described for example in the request for European patent EP 0 406 157 or in the US patent 5,282,417 which shows such mounted ink rollers in a printing machine using both direct and indirect inking techniques.

Ce type de cylindres encreurs présente néanmoins des désavantages. En particulier, lorsqu'ils sont usés, c'est-à-dire lorsque les zones en relief sont usées, il est nécessaire de démonter les cylindres de la machine d'impression, de redéposer une couche de matière plastique ou autre sur sa circonférence, de tailler à nouveau les zones en relief désirées et finalement de remonter les cylindres dans la machine ce qui nécessite de procéder à des ajustages longs et compliqués pour retrouver un registre correct des différentes impressions sur le cylindre collecteur-encreur ou sur le cylindre porte-plaque.This type of ink cylinder nevertheless has disadvantages. In particular, when they are worn, that is to say when the raised areas are worn, it it is necessary to disassemble the cylinders from the machine printing, to re-deposit a layer of material plastic or other around its circumference, to cut to again the desired raised areas and finally reassemble the cylinders in the machine which requires make long and complicated adjustments to find a correct register of the different prints on the collector-inking cylinder or on the plate cylinder.

Une première solution permettant de remédier à certains de ces désavantages consiste à utiliser des plaques d'encrage comportant un revêtement photopolymérique qui se montent sur des cylindres remplaçant les cylindres encreurs connus. L'on peut ainsi préparer ces plaques de manière indépendante, notamment en formant les zones en relief en utilisant un procédé de photogravure, mais ces plaques photopolymériques présentent elles aussi des désavantages. D'une part, l'on doit mentionner le fait que la création des zones en relief doit se faire à plat de sorte que ces zones en relief sont déformées lors du montage des plaques sur le cylindre. Il est donc indispensable de tenir compte de cette déformation pendant la création des zones en relief. En outre, le diamètre des cylindres sur lequel les plaques seront montées a également une influence sur la déformation. La durée de vie de ces plaques photopolymériques, outre leur prix, est aussi défavorable. En effet, et en particulier dans des procédés faisant appel au principe de l'encrage direct de la plaque d'impression dont la température peut être élevée, la durée de vie de ces plaques photopolymériques est bien inférieure à celle des cylindres encreurs mentionnés ci-dessus. De plus, le matériau photopolymérique a une élasticité inférieure à celle des matières utilisées pour les cylindres encreurs de sorte que l'encrage est parfois insuffisant, surtout dans un procédé à encrage direct.A first solution to remedy some of these disadvantages is to use plates ink system with a photopolymer coating mount on cylinders replacing cylinders known inkers. We can thus prepare these plates independently, in particular by forming the zones in relief using a photoengraving process, but these photopolymeric plates also have disadvantages. On the one hand, we must mention the fact that the creation of raised areas must be done flat so that these raised areas are distorted when mounting the plates on the cylinder. It is therefore essential to take this deformation into account during the creation of the raised areas. In addition, the diameter of the cylinders on which the plates will be climbs also has an influence on the deformation. The service life of these photopolymer plates, in addition to their price is also unfavorable. Indeed, and in particular in processes using the principle direct inking of the printing plate, the temperature may be high, the service life of these photopolymer plates is much lower than that of the ink cylinders mentioned above. Moreover, photopolymeric material has elasticity lower than that of the materials used for inking cylinders so that inking is sometimes insufficient, especially in a direct inking process.

Le but de l'invention est d'améliorer les systèmes d'encrage connus.The object of the invention is to improve the systems known inks.

Plus particulièrement, l'invention a pour but de proposer une plaque d'encrage qui remédie aux inconvénients des plaques connues.More particularly, the invention aims to offer an inking plate that addresses disadvantages of known plates.

L'invention a également pour but de proposer un procédé de production d'une telle plaque d'encrage, un cylindre d'encrage portant une telle plaque d'encrage et une machine d'impression rotative utilisant une telle plaque d'encrage.The invention also aims to propose a method for producing such an inking plate, a cylinder inking bearing such an inking plate and a rotary printing machine using such inking plate.

La plaque d'encrage selon l'invention est définie par la partie caractérisante de la revendication 1. The inking plate according to the invention is defined by the characterizing part of claim 1.

Les avantages de la plaque selon l'invention sont nombreux. D'une part, l'on peut mentionner le fait que de telles plaques sont nettement moins onéreuses à produire et que leur durée de vie est bien plus longue que celle des plaques photopolymériques. En outre, leur fabrication est bien plus simple puisque les zones en relief sont créées sur des plaques montées sur des cylindres de sorte que ces zones ne sont pas déformées lors de l'installation des plaques dans une machine d'impression.The advantages of the plate according to the invention are numerous. On the one hand, we can mention the fact that such plates are significantly less expensive to produce and their lifespan is much longer than that of photopolymeric plates. In addition, their manufacturing is much simpler since the areas in relief are created on plates mounted on cylinders so that these areas are not deformed when installing the plates in a machine printing.

Les revendications 2 à 6 définissent des modes d'exécution particuliers de la plaque d'encrage.Claims 2 to 6 define modes specific execution of the inking plate.

La revendication indépendante 7 définit un cylindre encreur de machine d'impression comportant au moins une plaque d'encrage selon l'invention, et la revendication indépendante 8 une machine d'impression comportant au moins un tel cylindre.Independent claim 7 defines a cylinder printing machine inker comprising at least one anchor plate according to the invention, and claim independent 8 a printing machine comprising at minus such a cylinder.

La revendication indépendante 9 définit un procédé de production d'une plaque selon l'invention.Independent claim 9 defines a method of production of a plate according to the invention.

Les revendications dépendantes 10 et 11 définissent des étapes particulières du procédé de production de la revendication 9.Dependent claims 10 and 11 define particular stages of the production process of the claim 9.

L'invention sera mieux comprise par la description d'un mode d'exécution de celle-ci et des figures qui s'y rapportent. The invention will be better understood by the description of a mode of execution of this and the figures therein relate.

La figure 1 est une vue schématique en coupe d'une machine d'impression rotative utilisant à la fois des techniques d'encrage direct et indirect.Figure 1 is a schematic sectional view of a rotary printing machine using both direct and indirect inking techniques.

La figure 2 est une vue en coupe d'une plaque selon l'invention.Figure 2 is a sectional view of a plate according the invention.

La figure 3 est une vue schématique en coupe d'un cylindre encreur portant une plaque selon l'invention.Figure 3 is a schematic sectional view of a ink cylinder carrying a plate according to the invention.

La figure 4 montre une vue en coupe d'une plaque de base montée sur un cylindre de préparation pour la dépose des couches.Figure 4 shows a sectional view of a plate of base mounted on a preparation cylinder for deposit layers.

La figure 5 est un schéma-bloc illustrant le procédé de production d'un plaque d'encrage selon l'invention.Figure 5 is a block diagram illustrating the method of production of an inking plate according to the invention.

La machine d'impression représentée à la figure 1 est une machine d'impression taille-douce convertible qui permet l'utilisation d'un procédé d'encrage direct ou indirect. Cette machine comprend trois modules I, II et III, l'encrage direct étant réalisé dans le module I qui comprend un cylindre d'impression 1, un cylindre porte-plaque 2, un cylindre d'essuyage 3 et un cylindre encreur 4 associé à un encrier 5. L'encrage indirect est réalisé par les modules II et III, qui comprennent un cylindre collecteur-encreur 6 encré par des cylindre encreurs 7 se trouvant dans le module II associés aux encriers 8. Ainsi, pour l'encrage indirect, les motifs correspondants aux zones en relief des cylindres encreurs 7 sont rassemblés sur le cylindre collecteur-encreur 6 puis sont transférés depuis ce cylindre collecteur 6 sur le cylindre porte-plaque 2. Une telle machine d'impression rotative est connue du brevet US 5,282,417 par exemple, incorporé par référence dans la présente demande.The printing machine shown in Figure 1 is a convertible intaglio printing machine which allows the use of a direct inking process or indirect. This machine includes three modules I, II and III, direct inking being carried out in module I which includes a printing cylinder 1, a cylinder plate holder 2, a wiping cylinder 3 and a cylinder ink pad 4 associated with an ink pad 5. Indirect ink is achieved by modules II and III, which include a collector-inking cylinder 6 inked by cylinders inkers 7 located in module II associated with inkwells 8. Thus, for indirect inking, the patterns corresponding to the raised areas of the cylinders inkers 7 are collected on the collector-ink cylinder 6 then are transferred from this cylinder manifold 6 on the plate cylinder 2. Such a rotary printing machine is known from US patent 5,282,417 for example, incorporated by reference into the this request.

Une plaque d'encrage selon l'invention est représentée en coupe à la figure 2. Cette plaque d'encrage 10 est constituée d'une plaque de base 11, de préférence en métal par exemple en inox, ayant deux extrémités 12, 13 prévues pour sa fixation sur un cylindre 17 (voir figure 3). Sur la plaque de base 11, on a d'abord déposé une couche de colle 14 qui recouvre la surface de la plaque 11 à l'exception des deux extrémités 12, 13 servant à la fixation. Par dessus cette couche de colle 14, on a ensuite déposé une première couche 26 d'une première composition de PVC et par dessus cette première couche 26, on dépose une deuxième couche 15 d'une deuxième composition de PVC dans laquelle des reliefs 16 ont été taillés. Ces reliefs 16 correspondent exactement à des motifs de la plaque qui doivent être encrés dans une couleur déterminée.An inking plate according to the invention is shown in section in FIG. 2. This inking plate 10 is consisting of a base plate 11, preferably in metal for example stainless steel, having two ends 12, 13 provided for its attachment to a cylinder 17 (see figure 3). On base plate 11, we first deposited a layer of glue 14 which covers the surface of the plate 11 with the exception of the two ends 12, 13 used for fixing. Over this layer of glue 14, a first layer 26 was then deposited of a first composition of PVC and over this first layer 26, a second layer 15 is deposited a second PVC composition in which reliefs 16 have been carved. These reliefs 16 exactly match the plate patterns which must be inked in a specific color.

De préférence, cette plaque à deux couches de PVC est utilisée pour de l'encrage direct, la deuxième couche 15 étant plus molle que la première couche 26 de PVC.Preferably, this two-layer PVC plate is used for direct inking, the second layer 15 being softer than the first layer 26 of PVC.

La figure 3 illustre, de manière schématique, la plaque d'encrage 10 montée sur un cylindre d'encrage 17. La plaque 10, qui correspond à celle de la figure 2, comprend la plaque de base 11, la couche de colle 14, les deux couches 26 et 15 de PVC, des reliefs 16 ayant été taillés dans la couche 15. Les extrémités 12 et 13 de la plaque de base 11 sont maintenues dans une fosse 18 du cylindre 17 par un système de fixation approprié, par exemple des pinces (non-représentées). Le système de fixation de plaques sur un cylindre est connu dans le domaine des machines d'impression rotatives. A titre d'exemple, le brevet EP 0 403 434, qui est incorporé par référence à la présente demande, montre un tel système de fixation se montant dans la fosse d'un cylindre porte-plaque.Figure 3 illustrates, schematically, the plate inking 10 mounted on an inking cylinder 17. The plate 10, which corresponds to that of FIG. 2, includes the base plate 11, the adhesive layer 14, the two layers 26 and 15 of PVC, reliefs 16 having were cut in layer 15. The ends 12 and 13 of base plate 11 are held in a pit 18 of cylinder 17 by an appropriate fixing system, for example pliers (not shown). The system for fixing plates to a cylinder is known in the field of rotary printing machines. As for example, patent EP 0 403 434, which is incorporated with reference to the present application, shows such fixing system for mounting in the pit of a plate cylinder.

Un tel cylindre 17 d'encrage se monte ensuite dans une machine d'impression telle que représentée à la figure 1, de préférence à la place du cylindre 4 pour de l'encrage direct, comme indiqué ci-dessus.Such an inking cylinder 17 is then mounted in a printing machine as shown in figure 1, preferably in place of cylinder 4 for direct inking, as shown above.

La figure 4 montre une plaque d'encrage en préparation, montée sur un cylindre de préparation 20 approprié pour la dépose des couches successives, ledit cylindre étant monté sur un support 22. La plaque de base 11 est montée sur ce cylindre de préparation 20 et maintenue en position par un système de pinces, représenté schématiquement par la référence 23, situé dans la fosse 21 dudit cylindre 20. Le système de pince utilisé peut être celui décrit ci-dessus ou tout autre système équivalent. Ladite fosse 21 est ensuite fermée par un couvercle 24 pour empêcher la colle et le PVC d'y pénétrer. Le couvercle 24 est fixé par des vis 25 ou par d'autres moyens équivalents. On dépose la couche de colle 14 sur la surface de la plaque de base 11 sauf sur la surface du couvercle 24. Dans le cas représenté dans cette figure, on a déposé qu'une seule et unique couche de PVC 27: cette configuration de plaque correspond à une utilisation dans un procédé d'encrage indirect. Dans ce cas, la couche externe de PVC 27 est plus dure que la couche 15 des figures 2 et 3, pour des plaques utilisées dans un procédé d'encrage direct. L'absence de colle sur le couvercle 24 fait que la couche de PVC n'adhère pas sur celui-ci et pour retirer la plaque 10, il suffit de découper longitudinalement, dans le sens axial du cylindre 20, le PVC le long des bords du couvercle pour enlever les couches de PVC recouvrant ledit couvercle 24. L'on peut ensuite défaire les moyens de fixation du couvercle 24 et accéder aux moyens de fixation 23 de la plaque 10 sur le cylindre 20 et enlever la plaque 10.FIG. 4 shows an inking plate in preparation, mounted on a preparation cylinder 20 suitable for the removal of successive layers, said cylinder being mounted on a support 22. The base plate 11 is mounted on this preparation cylinder 20 and maintained in position by a clamp system, shown schematically by the reference 23, located in the pit 21 of said cylinder 20. The clamp system used can be the one described above or any other system equivalent. Said pit 21 is then closed by a cover 24 to prevent glue and PVC from entering enter. The cover 24 is fixed by screws 25 or by other equivalent means. We deposit the layer of glue 14 on the surface of the base plate 11 except on the surface of the cover 24. In the case shown in this figure, we have deposited only one and only PVC layer 27: this plate configuration corresponds to use in an inking process indirect. In this case, the outer layer of PVC 27 is harder than layer 15 of Figures 2 and 3, for plates used in a direct inking process. The absence of glue on the cover 24 means that the PVC layer does not adhere on it and to remove the plate 10, it suffices to cut longitudinally, in the axial direction of cylinder 20, the PVC along the edges of the cover to remove layers of PVC covering said cover 24. It is then possible undo the means for fixing the cover 24 and access the fixing means 23 of the plate 10 on cylinder 20 and remove plate 10.

Il est possible de procéder à la découpe des reliefs 16 (voir figure 2 et 3) soit directement sur le cylindre de préparation 20, ou bien dans une machine spécifique en démontant la plaque 10 de son support 20 et en la remontant sur un cylindre similaire dans la machine spécifique.It is possible to cut the reliefs 16 (see figure 2 and 3) either directly on the cylinder preparation 20, or in a specific machine by removing the plate 10 from its support 20 and by going up on a similar cylinder in the machine specific.

Le procédé de production d'une plaque d'encrage selon l'invention comprend les étapes suivantes:

  • montage d'une plaque de base sur un cylindre de préparation et fixation par des moyens appropriés;
  • couverture des moyens de fixation par un couvercle;
  • dépôt d'une couche de colle sur la surface de la plaque de base sauf sur le couvercle;
  • dépôt d'au moins une couche de PVC sur la couche de colle et sur le couvercle;
  • découpe de la couche de PVC située sur le couvercle;
  • démontage du couvercle et retrait de la plaque.
The method for producing an inking plate according to the invention comprises the following steps:
  • mounting a base plate on a preparation cylinder and fixing by appropriate means;
  • covering the fixing means by a cover;
  • depositing a layer of glue on the surface of the base plate except on the cover;
  • depositing at least one layer of PVC on the adhesive layer and on the cover;
  • cutting of the PVC layer located on the cover;
  • dismantling of the cover and removal of the plate.

Ce procédé est illustré en figure 5 par un schéma-bloc comportant les différentes étapes. This process is illustrated in Figure 5 by a block diagram with the different stages.

De préférence, on utilisera une colle du type Decorral HF (nom de commerce), toutefois d'autres colles équivalentes sont possibles.Preferably, use a glue of the Decorral type HF (trade name), however other adhesives equivalents are possible.

Des exemples de compositions de PVC sont les suivants.Examples of PVC compositions are as follows.

Couche 15 , 70 Shore A, des figures 2 et 3: Layer 15, 70 Shore A, Figures 2 and 3 :

  • Hostalit 4472   1'100 gHostalit 4472 1'100 g
  • Hostalit 9070   1'100 gHostalit 9070 1,100 g
  • Vestinol AH (DOP)   1'135 gVestinol AH (DOP) 1,135 g
  • Paraplex G54   770 gParaplex G54 770 g
  • Carbonate de calcium   825 gCalcium carbonate 825 g
  • Prosper DBM   45 gProsper DBM 45 g
  • Vinlub 73   10 gVinlub 73 10 g
  • Riccadil TPL   10 gRiccadil TPL 10 g
Couches 26 ou 27, 50 Shore D, des figures 2, 3 ou 4: Layers 26 or 27, 50 Shore D, Figures 2, 3 or 4 :

  • Hostalit 4472   1'250 gHostalit 4472 1'250 g
  • Hostalit 9070   1'250 gHostalit 9070 1'250 g
  • Vestinol AH (DOP)   1'200 gVestinol AH (DOP) 1,200 g
  • Monomer X 980   375 gMonomer X 980 375 g
  • Catalyseur TBPB-50-FT (50%)   8ccTBPB-50-FT catalyst (50%) 8cc
  • Prosper DBM   50 gProsper DBM 50 g
  • Carbonate de calcium   125 gCalcium carbonate 125 g
  • Graphite   40 gGraphite 40 g

De préférence, l'épaisseur appliquée de la couche 15 de PVC sera de 5 mm dont le dépôt peut s'effectuer en deux phases consécutives, chacune correspondant à une épaisseur de 2,5 mm environ. Une fois cette couche déposée et le cylindre refroidi, on peut rectifier la surface avant le dépôt de la deuxième couche de PVC. Preferably, the applied thickness of the layer 15 of PVC will be 5 mm which can be deposited in two consecutive phases, each corresponding to a thickness of about 2.5 mm. Once this layer deposited and the cylinder cooled, we can correct the surface before depositing the second layer of PVC.

L'épaisseur de la couche 26 ou 27 peut être de 3 mm environ.The thickness of layer 26 or 27 can be 3 mm about.

Les modes d'exécution de l'invention sont donnés à titre d'exemple et des variations dans le cadre de la protection telle que revendiquée dans les revendications sont possibles. Par exemple, en fonction de la taille des plaques et de la dimension des cylindres encreurs, l'on peut monter plus d'une plaque par cylindre. Il peut même être particulièrement intéressant et avantageux de faire correspondre le nombre de plaques d'encrage avec le nombre de plaque à encrer: toutes les plaques étant fixées à l'aide de systèmes de pinces, l'on peut alors faire correspondre les passages des pinces de chaque cylindre, encreur et porte-plaque, et ainsi optimiser l'utilisation des surfaces des plaques. De même, l'épaisseur des couches de PVC peut être variée en fonction des circonstances.The embodiments of the invention are given in example title and variations as part of the protection as claimed in the claims are possible. For example, depending on the size of the plates and the dimension ink cylinders, you can mount more than one plate per cylinder. It can even be particularly interesting and beneficial to match the number of inking plates with the number of plates to ink: all the plates being fixed using clamp systems, we can then match the pliers passages of each cylinder, ink and plate holder, and thus optimize the use of plate surfaces. Likewise, the thickness of the layers PVC can be varied depending on the circumstances.

Claims (11)

  1. An inking plate for a rotary printing press, the plate being designed to be mounted on a cylinder, and being formed of at least a base plate (11) and material deposited on said base plate (11), the surface of said deposited material being designed to be cut in relief (16) areas whose outlines correspond to the outlines of the surfaces to be inked, characterized in that said deposited material is formed by at least one layer (15;27) of a PVC composition distributed over the greater part of the surface of the base plate (11).
  2. The plate as claimed in claim 1, characterized in that it comprises a layer of adhesive (14) deposited directly onto the surface of the base plate (11).
  3. The plate as claimed in claim 1 or 2, characterized in that the layer of PVC (27) has a Shore D hardness of 50.
  4. The plate as claimed in claim 1 or 2, characterized in that the deposited material comprises two successive layers (15,26) of two different PVC compositions.
  5. The plate as claimed in claim 4, characterized in that the first deposited layer (26) of PVC has a Shore D hardness of 50 and the second layer (15) of PVC a Shore A hardness of 70.
  6. The plate as claimed in one of claims 1 to 5, characterized in that the base plate (11) is a metal plate.
  7. An inking cylinder for a rotary printing press, formed of a cylinder (17) comprising at least one slot (18) and means for clamping at least one inking plate around its circumference, characterized in that it comprises an inking plate (10) as defined in one of claims 1-6.
  8. A rotary printing press characterized in that it comprises at least one inking cylinder (17) as claimed in claim 7.
  9. A process for producing an inking plate as defined in one of claims 1 to 6, characterized by the following steps:
    mounting a base plate (11) on a preparation cylinder (20) and clamping it by appropriate means (23);
    covering the clamping means (23) with a cover (24);
    depositing a layer of adhesive (14) on the surface of the base plate (11), except over the cover (24);
    depositing at least one layer (15,26,27) of a PVC composition on the layer of adhesive (14) and on the cover (24);
    cutting the layer (15,26,27) of PVC lying over the cover (24); and
    taking off the cover (24) and removing the plate.
  10. The process as claimed in claim 9, characterized in that two successive layers (15,26) of two different PVC compositions are deposited.
  11. The process as claimed in claim 9 or 10, characterized in that reliefs (16) corresponding to the areas to be inked are cut into the layer (15,27) of PVC.
EP00960283A 1999-11-19 2000-09-28 Inking plate for rotary printing machine and process of production of an inking plate Expired - Lifetime EP1230089B8 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH211799 1999-11-19
CH211799 1999-11-19
PCT/CH2000/000529 WO2001038096A1 (en) 1999-11-19 2000-09-28 Inking plate for rotary printing machine

Publications (3)

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EP1230089A1 EP1230089A1 (en) 2002-08-14
EP1230089B1 true EP1230089B1 (en) 2003-07-23
EP1230089B8 EP1230089B8 (en) 2003-09-17

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EP00960283A Expired - Lifetime EP1230089B8 (en) 1999-11-19 2000-09-28 Inking plate for rotary printing machine and process of production of an inking plate

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US (2) US6766741B1 (en)
EP (1) EP1230089B8 (en)
JP (1) JP2003514698A (en)
KR (1) KR20020070976A (en)
CN (1) CN1173828C (en)
AT (1) ATE245537T1 (en)
AU (1) AU764396B2 (en)
CA (1) CA2391949A1 (en)
DE (1) DE60004084T2 (en)
RU (1) RU2240922C2 (en)
UA (1) UA70396C2 (en)
WO (1) WO2001038096A1 (en)

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CN102275381A (en) * 2009-05-14 2011-12-14 中国印钞造币总公司 Polyvinyl chloride plastics/rubber ink roller and preparation method thereof
CN102248771A (en) * 2009-05-14 2011-11-23 中国印钞造币总公司 Polyvinyl chloride (PVC) plastic/rubber ink-conveying roller and preparation method thereof
CN106274043B (en) * 2016-09-22 2018-11-13 合肥京东方光电科技有限公司 Transfer printing board and preparation method thereof, print roller, printing equipment and its assemble method
CN109122377A (en) * 2018-08-28 2019-01-04 山东体育学院 A kind of simple autonomous runner telecontrol equipment

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EP1230089A1 (en) 2002-08-14
ATE245537T1 (en) 2003-08-15
CN1173828C (en) 2004-11-03
US6766741B1 (en) 2004-07-27
WO2001038096A1 (en) 2001-05-31
AU7266400A (en) 2001-06-04
DE60004084T2 (en) 2004-06-17
US20040177781A1 (en) 2004-09-16
JP2003514698A (en) 2003-04-22
EP1230089B8 (en) 2003-09-17
UA70396C2 (en) 2004-10-15
KR20020070976A (en) 2002-09-11
CN1391518A (en) 2003-01-15
AU764396B2 (en) 2003-08-14
DE60004084D1 (en) 2003-08-28
CA2391949A1 (en) 2001-05-31
RU2240922C2 (en) 2004-11-27

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