EP2308680B1 - Elément auxiliaire d'impression électrostatique - Google Patents

Elément auxiliaire d'impression électrostatique Download PDF

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Publication number
EP2308680B1
EP2308680B1 EP10009432.5A EP10009432A EP2308680B1 EP 2308680 B1 EP2308680 B1 EP 2308680B1 EP 10009432 A EP10009432 A EP 10009432A EP 2308680 B1 EP2308680 B1 EP 2308680B1
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EP
European Patent Office
Prior art keywords
impression roller
electrical
electrostatic printing
charge
bearing
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.)
Active
Application number
EP10009432.5A
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German (de)
English (en)
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EP2308680A1 (fr
Inventor
Hubertus Dettke
Christa Dettke
Christoph Dettke
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.)
Dettke Christa
Dettke Christoph
Dettke Hubertus
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Individual
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Priority to PL10009432T priority Critical patent/PL2308680T3/pl
Publication of EP2308680A1 publication Critical patent/EP2308680A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/001—Heliostatic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details

Definitions

  • the invention relates to an electrostatic printing aid.
  • Electrostatic printing aids are used in printing technology in rotary printing, especially in rotary gravure printing.
  • the substrate e.g., paper, cardboard, or plastic film
  • the printing cylinder takes in paint on its surface color from a paint tray with. The excess is scraped off.
  • a limited conductive layer - hereinafter also referred to as "semiconductor layer” - is supplied with a high voltage on the circumference of the impression roller.
  • a press roller for toploading from inside to outside has a metal core, an electrically insulating layer, optionally an electrically highly conductive layer and the outside of the semiconductor layer.
  • the electrical charge is supplied to the semiconductor layer on the circumference of the impression roller.
  • the highly conductive layer causes a distribution of the electrical charge in the axial direction of the impression. If no highly conductive layer is present, the distribution of charge can also be effected by a needle electrode extending over the entire axial length of the impression roller.
  • the insulating one Layer prevents the discharge of the charge to ground. It has an electrical resistance of about one to several gigaohms, so that applied charge does not flow unhindered, but can gradually drain when the impression roller is not loaded.
  • EP 1 640 160 A1 is a needle electrode for toploading with at least one flow channel with an aligned on the portion of at least one needle discharge opening is known, which is connectable to a compressed gas source.
  • the air or gas flow prevents dirt from depositing on the needles of the needle electrode, thereby reducing the cost of maintenance and repair.
  • the metallic core of the impression roller When directly feeding the charge to the core of the impression roller ("direct charge”), the metallic core of the impression roller is mounted in an insulated manner and provided with the semiconductor layer on the circumference.
  • the electric charge is supplied to the semiconductor layer via the core. It is known to supply the core with the electrical voltage via electrodes or brush grinding contacts.
  • the US 4,697,514 describes a impression roller of an insulating shaft, the electric charge is supplied via sliding contacts.
  • the US 4,966,555 describes a impression roller with an electrically insulating mounted axis on which a hollow cylindrical core is rotatably mounted. The core is supplied with the electrical charge via sliding contacts, which contact a flange at the end of the hollow cylinder.
  • an impression roller provided with an insulating axle which has a limited conductive covering over a steel jacket.
  • the covering is supplied with the electric charge via the axle, a ball bearing between the axle and the steel jacket and the steel jacket.
  • the direct charge supply via electrodes, brushes and ball bearings is affected by soiling and wear.
  • a sleeve for toploading has, for example, a carrier sleeve made of insulating, glass fiber reinforced plastic (GRP), on which a layer of semiconductive rubber is applied.
  • a sleeve for direct charge has, for example, a carrier sleeve or “sleeve sleeve” made of glass fiber reinforced plastic, which is conductive at least in sections from the inside to the outside by embedded, electrically conductive particles or at least one integrated, electrically conductive ring.
  • the impression roller can be equipped with a sleeve adapted to the width of the printing material to be printed be fitted.
  • the sleeve can be replaced or reworked if the semiconductive layer is worn.
  • a safety sleeve when toploading the sleeve can be replaced by a safety sleeve, if you do not want to work with an electrostatic printing aid.
  • the safety sleeve is conductive from the inside to the outside, so that the charge can flow off via the safety sleeve and the core to the ground.
  • Security sleeves are used in particular for printing on plastic films. In this case, a support by an electrostatic printing aid is only required for the printing of special colors.
  • the US 5,937,750 describes a "Stencil Printer” or “stencil printer”, which is a rotating Sicbdruckvorraum.
  • a printing drum is supplied with ink via a color tube, which is distributed over a roller-type paint roller on the inner circumference of the printing drum.
  • the printing drum comprises a cylinder which has pores and an outer fiber layer through which paint can escape to the outside.
  • the image of a document is transferred to a fibrous substrate and from this a master is made which is wrapped around the cylinder.
  • a paper is fed into the nip between the drum and a pinch roller when the image area of the master reaches the nip as the drum rotates.
  • the paper is pressed by means of the pressure roller against the drum and pressed a high electrical voltage by means of a voltage source to the pressure roller.
  • the pressure of the pinch roller and the electric field cooperate to transfer the ink to the paper through the pores of the cylinder, the permeable fiber layer and the master.
  • the image density of the screen printing is controlled.
  • the pressure roller is electrically charged in each case with a high voltage and unload the pressure roller after printing a paper.
  • the pressure roller is permanently connected on the outside in each case with an electrically insulating layer or an electrically semiconducting layer.
  • the invention has for its object to produce an electrostatic printing aid, which facilitates the discharge of electrical charge from the impression roller, if it is not used for supplying electrical charge to the impression roller.
  • the electrostatic printing aid should be able to work both with a charge supply by Topload as well as with a charge supply by direct charge.
  • electrostatic printing aid having the features of claim 1.
  • Advantageous embodiments of the electrostatic printing aid are specified in the subclaims.
  • the impression roller is mounted in an electrically insulated manner. This applies both to a press roller with a shaft and to a press roller with an axle.
  • an electrically semiconducting or limited conductive outer layer is arranged, which is also referred to below as "semiconductor layer".
  • the impression roller can be used both for toploading and for direct charge since it is mounted in an electrically insulating manner and the transition of the charge from the core to the outer layer is not hindered by an electrically insulating layer. Regardless of the type of high voltage supply, the same impression roller can be used.
  • the high voltage power supply When the high voltage power supply is switched on, electrical charge is applied to the outer layer in both types of use in order to support the color transition to the printing substrate.
  • the high voltage electrical supply When the high voltage electrical supply is turned off, by controlling the means for switching the core of the impression roller can be electrically connected to ground so that unwanted charge flows from the outer layer to ground. An undesirable sparking can be avoided in particular when printing substrates made of plastic. The risk of inflammation is thereby greatly reduced.
  • the impression rollers are suitable for toploading as well as direct charge.
  • the storage of the impression roller in the machine frame is independent of the type of high voltage supply.
  • the printing press manufacturer can standardize the constructions of the printing presses and the impression rollers. The costs of production, warehousing and operation can be reduced.
  • the impression rollers can be provided with a permanently applied outer layer.
  • the outer layer is disposed on a sleeve sleeve and the core is a sleeve mandrel.
  • the effort for the sleeve can be reduced because the insulating layer is eliminated.
  • the semiconductive layer of the sleeve can be made thicker, so that the sleeve can be reworked more often and has a longer life than conventional sleeves.
  • the sleeve sleeve is electrically conductive at least in a portion from the inside to the outside.
  • the sleeve sleeve may at least partially consist of electrically conductive material or of a material (eg GRP) in which electrically conductive particles (eg graphite, carbon black, iron or carbon fiber particles) are embedded or may be in the sleeve sleeve be integrated at least one electrically conductive ring.
  • electrically conductive particles eg graphite, carbon black, iron or carbon fiber particles
  • the means for Isolate between the shaft and the pivot bearings to arrange.
  • the means for rotatably supporting an axis and the core on the axis rotatably superimposed pivot bearing is mounted on the pivot bearing of the core.
  • the means for supplying and / or discharging electric charge may be electrical connections to the fixed axis.
  • the means for insulating can also be arranged between the pivot bearings and the axle or between the core and the pivot bearings.
  • the axle may be made of an electrically insulating material.
  • the means for supplying and / or discharging electrical charge may be a charging electrode and / or a fluid transfer system arranged laterally on the core and / or electrical sliding contact and / or electrical brush contact.
  • the means for insulating comprise cylindrical bearing shells made of an insulating material.
  • the bearings can be made in one piece or split.
  • the means for supplying electrical charge on the impression roller can be designed differently. According to one embodiment, they have at least one charging electrode and / or fluid transfer system and / or electrical sliding contact and / or electrical brush contact and / or electrical connection to an outer bearing part of a rotary bearing for supporting a shaft of the impression roller or on an axis of the impression roller. All suitable means for Supplying electrical charge are included.
  • the means for supplying an electric charge mentioned in the description of the prior art can be used within the scope of the invention.
  • a fluid transfer system is used.
  • All suitable means for dissipating electrical charge are included.
  • the means for supplying an electric charge mentioned in the introduction to the prior art can be used according to the invention as means for discharging an electric charge.
  • a fluid transfer system is used.
  • the means for supplying and discharging electric charge may be the same means.
  • the means for electrical switching are integrated in the housing of the high-voltage power supply or arranged in a separate housing.
  • the integration into the housing of the high-voltage supply is particularly advantageous if the means for supplying the electrical charge are at the same time the means for discharging the electrical charge. Over the same connection with the impression roller then the electrical charge can be supplied and removed.
  • the means for switching can be arranged in particular in a separate housing from the high voltage power supply, if the electrostatic printing aid is prepared by retrofitting a conventional electrostatic printing aid or if a Toploading system with High voltage supply is available. A toploading electrode can not be used to dissipate electrical charge from the impression roller.
  • the means for electrical switching comprise a relay or a manual switch or a semiconductor switch, e.g. a thyristor.
  • the means for controlling the means for switching comprise a signal line which is connected to the high-voltage electrical supply.
  • the signal line indicates the means for controlling whether the high voltage electrical supply is on or off and / or what operating state the press has, for example whether it is off, running in run mode or operating in print mode.
  • the means for controlling can control the means for switching. With the high voltage supply switched off, they can connect the core of the impression roller to ground and disconnect it when the high voltage supply is switched on. When the machine is off or running in run-in mode, it can connect the core to ground and separate the core from ground when the machine is operating in print mode.
  • the means for controlling the means for switching are connected to means for determining the rotational speed of the impression roller, which emit a signal to the means for controlling when exceeding a predetermined rotational speed, which switches the means for switching.
  • this configuration enables the core to be connected to ground when the printing press is operating in the run-in mode and separating the core from the ground during the printing operation of the printing press.
  • matching components are provided with the same reference numerals.
  • Components with matching designations which are designed differently, are designated by the same leading reference numeral, a trailing point and a subsequent, special reference numeral.
  • Fig. 1 has a impression roller 1.1 a cylindrical core 2.1 and a rotatable shaft 3, which projects with sections 3.1, 3.2 of the two end faces of the core 2.1.
  • the core 2.1 including the shaft 3 is made of an electrically conductive material, for example of a metal or a metal alloy.
  • the sleeve 4 On the circumference of the core 2.1 sits a sleeve 4.
  • the sleeve 4 has inside a hollow cylindrical sleeve sleeve 5 made of electrically conductive material, which is e.g. a made with electrically conductive particles (graphite, carbon black, carbon fiber etc.) made conductive glass fiber reinforced plastic.
  • the sleeve sleeve 5 carries outside a semiconductor layer 6.1 electrically limited conductive and elastic material. This is, for example, rubber rendered conductive by electroconductive particles (e.g., graphite, carbon black, iron or carbon fiber particles).
  • This impression roller 1.1 is provided with - not shown - compressed air channels, so that it is possible by applying compressed air to the impression roller to build a compressed air cushion between the core 2.1 and the sleeve sleeve 5, which makes it possible to remove the sleeve 4 in the axial direction.
  • the sections 3.1, 3.2 of the shaft 3 are mounted on rolling bearings 7, 8, which consist of an electrically conductive material. These are e.g. around ball bearings.
  • the rolling bearings 7, 8 are inserted in hollow cylindrical bearing shells 9, 10 of electrically insulating material.
  • the bearing shells 9, 10 are in turn bearing receptacles 11, 12 of a machine frame 13 used.
  • the electrostatic printing aid has means for supplying and discharging electric charge 14.
  • This is, for example, a fluid transmission system according to EP 1 780 011 A2 ,
  • An electrical high voltage supply or high voltage generator 15.1 is connected via a connecting line 16.1 to the means 14 for supplying and discharging electrical charge.
  • the electric high voltage generator 15.1 includes means for switching 17.1 connected to ground 18 e.g. the machine frame 13 ("machine mass”) are connected.
  • the high voltage generator 15.1 is connected via a control line 19.1 with means 20 for controlling the means 17.1 for switching.
  • the rolling bearings 7, 8 are insulated from the machine frame 13 by the bearing shells 9, 10, the high tension applied to the impression roller 1.1 can not flow away from the machine frame 13.
  • the means 20 for controlling the high voltage generator 15.1 is turned off, and the means for switching 17.1 are closed.
  • the fluid transmitter 14 is connected to ground.
  • the electric charge can from the periphery of the semiconductor layer 6 via the sleeve Hillse 5 and the core 2 and the fluid transmitter 14 to ground 18 drain. Unwanted electrical discharges are avoided.
  • Fig. 2 differs from the above-described characterized in that the high voltage generator 15.2 is connected via the connecting line 16.2 with a needle electrode 21.
  • the needle electrode 21 is aligned parallel to the impression roller 1.1 and spaced by a small gap from the semiconductor layer 6.1.
  • a means for switching 17.2 is housed in a separate housing from the high voltage generator 15.2.
  • the means for switching 17.2 are connected to the impression roller 1.1 via the connecting line 16.1, for discharging electrical charge, e.g. is a fluid transfer system.
  • the high-voltage generator 15.2 is switched on via the means for controlling 20 and the control line 19.1. From the needle electrode 2.1 electrical charge is transferred to the semiconductor layer 6.1 via the air gap. Since the roller bearings 8 of the impression roller 1.2 are insulated by the bearing shells 9, 10 from the machine frame 12, the applied electric charge can not drain to ground.
  • the means for switching 17.2 have a high-impedance resistor 22, via which the impression roller 1.1 is permanently connected to ground 18. Excessive voltages can flow away via this resistor 2.2, and the impression roller 1.1 can be gradually discharged after the high-voltage generator 15.2 has been switched off.
  • means for controlling 20 via the control line 19.2 directly or via the high voltage generator 15 and the control line 19.3 with the means for Switch 17.2 connected. They control the means for switching 17.2 so that they are open when the high voltage generator 15.2 and closed when the high voltage generator 15.2 is off. As a result, a charge from the circumference of the impression roller 1.1 when the high voltage generator 15.2 is switched off quickly to ground 18.
  • Fig. 3 The execution of Fig. 3 is different from the execution of Fig. 1 first, characterized in that the impression roller 1.2 has a hollow cylindrical core 2.2, which is mounted on a fixed axis 23 via the roller bearings 7, 8. The axis is mounted on insulating bearing shells in bearing mounts 11, 12 of a machine frame 13.
  • the core 2.2 carries on the outer circumference a semiconductive outer layer 6.2. It sits in the example directly on the circumference of the core 2.2.
  • This may be, for example, a vulcanized rubber layer containing electrically conductive particles (e.g., iron particles, graphite particles, carbon brushes, carbon fibers).
  • the high voltage generator 15.1 is connected via the connecting line 16.1 directly electrically connected to the axis 23 of electrically conductive material.
  • the high voltage generator 15.1 is switched on the axis 23 and the electrically conductive bearings 7, 8 and the core 2.2 electrical charge to the semiconductor layer 6.2 and passes from there to the substrate in the gap between impression 1.2 and impression cylinder.
  • the insulating mounting of the axle 23 in the machine frame 13 prevents charge from flowing off.
  • the means for switching 17.1 are open, so that the high voltage can not flow through this to ground.
  • the means for controlling 20 can switch off the high voltage generator 15.1 via the control line 19.1 and close the means for switching 17.1, so that the axis 23 is connected to ground 18 via this. As a result, charge can flow from the circumference of the impression roller 1.2 to the axis 23 and from there via the connecting line 16.1 and the means for switching 17.1 to the mass 16.
  • Fig. 4 The execution of Fig. 4 is different from the execution of Fig. 2 in that the impression roller 1.2 is designed as in the embodiment of Fig. 3 , Furthermore, the means for switching 17.2 as in FIG. 3 connected directly to the axis 23 via the connecting line 16.1.
  • the printing aid can be switched so that the high voltage generator 15.2 feeds charge of the semiconductor layer 6.2 via the needle electrode 21.
  • the means for switching 17.2 are opened, so that only charge can flow through the resistor 22.
  • the means for switching 20, the high voltage generator 15.2 off and at the same time close the means for switching 17.2, so that the connecting line 16.1 is connected to ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rotary Presses (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Claims (12)

  1. Elément auxiliaire d'impression électrostatique dans une installation d'héliogravure rotative, avec
    - un presseur (1) avec un noyau (2) en matériau électriquement conducteur et une couche extérieure (6) élastique et électriquement semi-conductrice,
    - des moyens de mise sur palier (7, 8) rotative qui supportent en rotation le presseur (1) dans un châssis de machine (13),
    - des moyens d'isolation (9, 10) qui isolent les moyens de mise sur palier (7, 8) rotative par rapport au châssis de machine (13),
    - une alimentation haute tension (15) pouvant être mise en et hors circuit,
    - des moyens d'acheminement de la charge fournie par l'alimentation haute tension (15) et appliquée au presseur (1),
    - des moyens d'évacuation de la charge électrique hors du presseur (1),
    - caractérisé en ce que
    - la couche extérieure (6) est disposée sur une douille-sleeve (5) électriquement conductrice au moins dans un tronçon allant du côté intérieur jusqu'au côté extérieur, et en ce que le noyau (2) est un mandrin-sleeve,
    - en ce qu'il existe des moyens de commutation électrique (17) dont l'entrée est électriquement raccordée aux moyens d'évacuation de la charge (14) hors du presseur (1) et dont la sortie est raccordée électriquement à la masse (18), et
    - en ce qu'il existe des moyens de commande (20) pour la commutation (17) à partir d'une position d'ouverture dans laquelle l'entrée n'a pas de raccordement à la sortie vers une position de fermeture dans laquelle l'entrée est raccordée à la sortie ou inversement.
  2. Elément auxiliaire d'impression électrostatique selon la revendication 1, dans lequel les moyens de mise sur palier rotative présentent des paliers rotatifs (7, 8) supportant en rotation un arbre (3) raccordé de façon bloquée au noyau (2) et l'arbre (3) par rapport au carter de machine (13).
  3. Elément auxiliaire d'impression électrostatique selon la revendication 1 ou 2, dans lequel les moyens de mise sur palier (7, 8) rotative présentent des paliers rotatifs (7, 8) supportant en rotation un axe (23) et le noyau (2) sur l'axe (23).
  4. Dispositif selon la revendication 2 ou 3, dans lequel les moyens d'isolation (9, 10) sont disposés entre des logements de palier (11, 12) dans le châssis de machine (13) et des paliers rotatifs (7, 8) insérés dans les logements de palier (11, 12) qui supportent un arbre (3) du presseur (1), ou des tronçons d'un axe (23) sur lequel le noyau (2) est supporté sur des paliers rotatifs (7, 8).
  5. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 4, dans lequel les moyens d'isolation (9, 10) comprennent des coussinets de palier cylindriques en matériau électriquement conducteur.
  6. Elément auxiliaire d'impression électrostatique selon une des revendications 2 à 5, dans lequel les paliers rotatifs (7, 8) sont des paliers à roulement.
  7. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 6, dans lequel les moyens d'acheminement de la charge électrique (14) sur le presseur comprennent au moins une électrode de charge et/ou un système de transmission fluidique et/ou un contact glissant électrique et/ou un contact à balais électrique et/ou un raccordement électrique sur une partie de palier extérieure d'un palier rotatif (7, 8) pour la mise sur palier d'un arbre (3) du presseur ou sur un axe (22) du presseur (1).
  8. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 7, dans lequel les moyens d'évacuation (14) de la charge électrique hors du presseur présentent au moins un système de transmission fluidique et/ou un contact glissant électrique et/ou un contact à balais électrique et/ou un raccordement électrique sur une partie de palier extérieure d'un palier rotatif (7, 8) pour la mise sur palier d'un arbre (3) du presseur ou sur un axe (22) du presseur (1).
  9. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 8, dans lequel les moyens de commutation électrique (17) sont intégrés dans le carter de l'alimentation haute tension (15) ou dans un carter séparé de celui-ci.
  10. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 9, dans lequel les moyens de commutation électrique (17) présentent un relais ou un commutateur manuel ou un commutateur à semi-conducteur.
  11. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 10, dans lequel les moyens de commande des moyens de commutation (17) présentent une ligne de signalisation qui est raccordée à l'alimentation haute tension (15).
  12. Elément auxiliaire d'impression électrostatique selon une des revendications 1 à 11, dans lequel les moyens de commande des moyens de commutation (17) sont raccordés à des moyens de détermination de la vitesse de rotation du presseur qui, en cas de dépassement d'une vitesse de rotation prédéfinie, délivrent aux moyens de commande un signal qui commute les moyens de commutation.
EP10009432.5A 2009-09-28 2010-09-10 Elément auxiliaire d'impression électrostatique Active EP2308680B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10009432T PL2308680T3 (pl) 2009-09-28 2010-09-10 System elektrostatycznego wspomagania druku

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009013196U DE202009013196U1 (de) 2009-09-28 2009-09-28 Elektrostatische Druckhilfe

Publications (2)

Publication Number Publication Date
EP2308680A1 EP2308680A1 (fr) 2011-04-13
EP2308680B1 true EP2308680B1 (fr) 2014-07-23

Family

ID=43597837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10009432.5A Active EP2308680B1 (fr) 2009-09-28 2010-09-10 Elément auxiliaire d'impression électrostatique

Country Status (4)

Country Link
EP (1) EP2308680B1 (fr)
DE (1) DE202009013196U1 (fr)
ES (1) ES2496192T3 (fr)
PL (1) PL2308680T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3028857B1 (fr) 2014-12-03 2017-05-31 Neopack, S.L. Procédé permettant d'améliorer les conditions de fonctionnement d'une machine d'impression

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697514A (en) 1965-10-07 1987-10-06 Gravure Association Of America Method and apparatus for transferring ink in gravure printing
US3554123A (en) * 1967-12-15 1971-01-12 Hurletron Inc Control of color densities and tones in multicolor printing
US4966555A (en) 1989-04-24 1990-10-30 Rotation Dynamics Corporation Electrostatic assist rotogravure printing safety contact
DE9218818U1 (de) * 1992-02-18 1995-08-31 Eltex-Elektrostatik Gmbh, 79576 Weil Am Rhein Presseur
FR2690189B1 (fr) 1992-04-15 1998-11-13 Freyssinet Int & Co Perfectionnements aux ouvrages en beton precontraint a l'aide de torons gaines graisses et a leurs procedes de construction.
JP3987157B2 (ja) * 1996-05-21 2007-10-03 東北リコー株式会社 孔版印刷装置
DE202004014952U1 (de) 2004-09-25 2006-02-02 Dettke, Christa Elektrode für eine Rotationsdruckmaschine und elektrostatische Druckhilfe
DE202005016974U1 (de) 2005-10-25 2006-01-05 Dettke, Christa Presseur

Also Published As

Publication number Publication date
PL2308680T3 (pl) 2015-01-30
DE202009013196U1 (de) 2011-04-28
EP2308680A1 (fr) 2011-04-13
ES2496192T3 (es) 2014-09-18

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