EP0730953A2 - Procédé et appareil pour l'héliogravure - Google Patents

Procédé et appareil pour l'héliogravure Download PDF

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Publication number
EP0730953A2
EP0730953A2 EP96101487A EP96101487A EP0730953A2 EP 0730953 A2 EP0730953 A2 EP 0730953A2 EP 96101487 A EP96101487 A EP 96101487A EP 96101487 A EP96101487 A EP 96101487A EP 0730953 A2 EP0730953 A2 EP 0730953A2
Authority
EP
European Patent Office
Prior art keywords
gravure
blank
printing
basic grid
image
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
EP96101487A
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German (de)
English (en)
Other versions
EP0730953A3 (fr
EP0730953B1 (fr
Inventor
Armin Weichman
Armin Franz-Burgholz
Rainer Stamme
Andreas Schiller
Hans Fleischmann
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0730953A2 publication Critical patent/EP0730953A2/fr
Publication of EP0730953A3 publication Critical patent/EP0730953A3/fr
Application granted granted Critical
Publication of EP0730953B1 publication Critical patent/EP0730953B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/003—Preparing for use and conserving printing surfaces of intaglio formes, e.g. application of a wear-resistant coating, such as chrome, on the already-engraved plate or cylinder; Preparing for reuse, e.g. removing of the Ballard shell; Correction of the engraving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/055—Thermographic processes for producing printing formes, e.g. with a thermal print head
    • 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
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing

Definitions

  • the invention relates to a method and a device for gravure printing by means of an erasable and reusable gravure printing form, starting from a gravure printing form with a basic grid designed at least for the maximum amount of ink to be transferred.
  • Gravure is a printing process with printing elements that are set lower than the surface of the mold. After the printing form has been completely inked, the surface is freed from the printing ink. This only remains in the deepened positions.
  • the type of coloring and the squeegee of the mold surface do not allow a pure surface pressure.
  • the entire drawing must be broken down into lines, dots or grid elements. Because of the different depth and size of the individual printing elements, they contain more or less printing ink, which means that the imprint has different color strength at the different image points.
  • the etching principle of the variable-depth processes is the slow diffusion of concentrated iron chloride solutions through a pigment gelatin layer.
  • the pigment copy on the copper printing form consists of a hardened gelatin relief that corresponds to the tone gradations of the slides.
  • the engraving processes are characterized by scanning image and text line by line with photocells and simultaneously engraving the printing form with engraving heads. Particularly noteworthy is the introduction of depressions into the copper layer of the printing form by means of a high-energy electron beam, which is directed in a vacuum onto the raw form and removes material there.
  • the printing form engraved in this way can be provided with depth and area-variable grids.
  • Recesses can also be made using a high-energy laser beam, whereby it must be noted that suitable measures must be taken to ensure the coupling of the laser energy into the substrate, since copper in particular largely reflects a laser beam without special pretreatment.
  • a method for producing an engraved printing form in which a gravure printing form is first provided by uniformly providing the smooth surface with depressions of the same depth and size, then the engraved surface with a light-sensitive mass is covered so that all the wells are filled. Thereupon the raw form with the desired image is photographically exposed so that the exposed areas polymerize, the unexposed portions can be washed out and this results in an image differentiation.
  • image areas of the printing form are lower than non-image areas.
  • the raster network forms uniformly high webs which delimit image areas and form a contact surface for the squeegee.
  • a special set of printing form cylinders is required for each print job (one printing form cylinder with a corresponding number of print pages per printing ink). Depending on the print format, these cylinders are manufactured in the required cylinder size.
  • the corresponding printing form cylinders must be replaced. Such a cylinder z. B. in a width of 200 cm today weighs about 800 kg.
  • each of these production processes includes steps such as electroplating or coating, exposing and developing, which rule out that the same printing form can be reused without extensive, in particular chemical treatment.
  • chrome plating is usually carried out after the pictorial etching or engraving, i.e. removal of material, to increase the service life.
  • the space for the entire cylinder must generally be provided.
  • the printing form production is also especially if galvanic steps are necessary, very complex and therefore expensive.
  • the resulting toxic sludge is also ecologically unsafe.
  • DE 38 37 941 C 2 discloses a method for producing an intaglio printing plate, by means of which the imaging can take place directly in the printing press, in addition the imaging of the intaglio printing plate can be deleted in the printing press and prepared again for new imaging.
  • a gravure blank form is also produced with a basic grid designed at least for the maximum amount of ink to be transferred.
  • a quantity of a thermoplastic substance which is inversely proportional to the image information, is then introduced into the depression from a nozzle of the pixel transmission unit or by image-correlated ironing in order to reduce the scooping volume of the depressions. That is to say, in contrast to the other methods, material is applied imagewise for imaging a gravure blank.
  • the thermoplastic substance can then be liquefied in the printing press by means of a heat source and removed again from the printing form cylinder by means of a wiping and / or blowing or suction device.
  • the pictorial material application poses problems for the positional accuracy of the imaging. It is not readily possible to completely bring material that is placed on the webs into the depressions. However, full insertion is necessary so that the entire transferred material also contributes in a desired manner to reducing the volume of the depressions.
  • the invention is therefore based on the object of developing a method and a device for gravure printing, as a result of which the gravure printing plate is inexpensive and can also be produced directly in the printing press and the positional accuracy of the imaging is improved.
  • the gravure blank form wear is compensated for because the maximum imaging depth in the substance applied to the gravure form is significantly less than the original depth of the depressions of the pre-structured raw form. If the depth of the depressions becomes smaller due to wear on the webs, the maximum depth of imaging can still be achieved for a long time.
  • the webs of the raw form are made as perpendicular as possible to the surface of the gravure form.
  • the raw form 1 can therefore be imaged directly in the printing press using the method and the device according to the invention.
  • the illustrated gravure form can also be easily deleted in the printing press and prepared for new imaging.
  • a pre-structured gravure blank 1 with a basic grid designed for at least the maximum amount of ink to be transferred is filled in a first step by means of a liquefiable substance through an application device 2.
  • a thermoplastic or a wax () Hotmelt) lacquers or a crosslinkable polymer melt or solution, which is also referred to as a reactive system and which is characterized by an extremely high abrasion resistance.
  • the surface of the gravure form is then essentially smooth.
  • the filled substance is then removed imagewise from the depressions by the action of thermal energy from a pixel transfer device 3.
  • the gravure printing plate can be colored 4 by means of a coloring system, so that it is possible to print on a printing material 5 in gravure 6.
  • the surface of the intaglio printing plate is regenerated again, by removing 7 of ink residues, preferably completely dissolving the liquefiable substance from the pre-structured depressions 8, and filling the depressions uniformly again.
  • the liquefied substance can be extracted from the pre-structured depressions by means of a heat source and / or a blowing or suction device.
  • Fig. 2 shows a pre-structured rotogravure blank 1 on a cylinder 10 with webs 9 which wind helically at a defined angle around their cylindrical surface.
  • the webs 9 are preferably at a distance from one another which corresponds to the distance of today's gravure screen. For an 80s grid this would be 125 ⁇ m. The distance can, however, also be significantly greater as long as the webs 9 still guide the doctor blade reliably without the doctor blade showing a recognizable deflection and without this leading to excessive wear of the webs 9.
  • the gravure blank 1 is usually wear-resistant at least on the web surfaces, for. B. tempered with chrome or titanium oxide or is inherently very hard because of ceramic, and / or is provided with a defined roughness so that the squeegee slides in print on a defined liquid film.
  • the intaglio printing forme 20 can then be used according to FIG be burned free in terms of image.
  • NdYAG or NDYLF lasers are preferably used, which are switched in several intensity levels 23 via an acousto-optical modulator.
  • the laser beam 22 can be guided to the gravure blank 1 and focused on it via a glass fiber optic. Care is taken that a well size of more than about 2/10 mm is preferably not exceeded.
  • the image-wise ablation 3 produces, at the latest after approximately this distance, a web which is not used to guide an ink squeegee, but rather to force the cell to be emptied of the ink during printing.
  • areas (pixels) that are smaller than an actual gravure cell can be addressed, so that a cell is generated from a plurality of pixels.
  • the image-based ablation 3 can be supported in that the filled rotogravure blank 1 is set in rapid rotation in such a way that a part of the material to be removed evaporates and a part is thrown off.
  • the gravure blank 1 is not designed as a solid cylinder, but is built up in layers in order to achieve a low heat capacity. So between the surface layer of a few tenths of a millimeter thickness, which carries the basic pattern of the gravure blank 1, and a base cylinder, a heat insulating layer, for. B. provided from glass fiber reinforced carbon.
  • the thermoplastic used for the liquefiable substance can also be a resin, a synthetic or natural wax.
  • Fig. 4 shows a preferred embodiment of an apparatus for performing the method according to the invention.
  • a device 11 for applying a liquefiable substance is arranged directly on a rotogravure plate cylinder 10, which carries the rotogravure blank form 1, within an intaglio printing machine.
  • a preferred embodiment of this device 11 is illustrated in FIG. 5. This includes one to the surface of the Gravure blank 1 open box 11 a with inserted heating cartridges 11 b.
  • the device 11 is heated and contains the melted thermoplastic 11 c, which can be filled or refilled as granules.
  • the melt 11 c is conveyed by gravity and capillary action to the surface of the gravure blank 1 and penetrates into the depressions of the basic grid. Gravity can also be replaced by air pressure or hydraulic pressure using a pump.
  • a capillary and hydrodynamic force acts through the narrow gap between the gravure blank 1 and the application device 11, which promotes exactly the amount of substance that is required for filling.
  • a constructive variant of this embodiment consists in that two molding strips 11d, 11e (FIG. 5) are provided for the device 11, specifically one (11e) thereof, seen in the direction of rotation of the gravure forme cylinder 10, before the other (11d) after the narrow gap between the gravure printing plate 1 and the application device 11.
  • the molding 11d after the gap is positively held by a precise guide or by support jaws against the cylinder 10 at a very short distance (a few 1/100 mm) and heated to adjust the viscosity of the filling material executed so that the hydrodynamic forces are effective and a complete filling of the recesses of the basic grid is guaranteed.
  • the rear edge of this ledge 11d is made sharp in order to ensure that the filling material is torn off cleanly from the gap.
  • the front molding 11e is held at a greater distance from the cylinder 10 (a few 1/100 mm to a few 1/10 mm), so that the gap which becomes larger as a result is filled with material, but the hydrodynamic forces act much less strongly.
  • the actual filling, which takes place in the area of the molding 11d, is prepared in this way and in particular by heating and pre-filling the heat-insulated raw pressure die surface.
  • the liquefiable substance 11 c can also be applied in excess to the gravure blank 1 in the heated state. Then, just after cooling, the excess portion is drawn off from the gravure blank 1 using a squeegee 12 that can be switched on and off, that is, scraped off and / or polished off.
  • the doctor blade 12 can oscillate here. After the thermoplastic has cooled, the surface of the gravure blank 1 is subsequently polished in the filled state in order to set the roughness of the surface in a defined manner.
  • the gravure blank can be colored using a coloring system 13.
  • a chambered doctor blade is preferably used for this, since it requires less space on the cylinder circumference than a conventional inking system and it can simply be moved away from the gravure cylinder 10 during the other method steps.
  • the application devices 11, the doctor blade 12 and the pixel transmission unit (for example the laser 21) and other apparatus can be switched off from the gravure cylinder 10 in order to protect them from the ink and the ink mist.
  • the printing form cylinder does not print directly on the paper, but between the printing form cylinder and the paper there is a roller covered with a smooth rubber surface. This serves as an intermediate support and thus decouples the printing form cylinder from the printing material.
  • two hard materials roll on one another in the printing nip between the printing form cylinder and the printing material, one of which, the printing material, also has an abrasive effect. To counteract this, hard materials are required for the printing form.
  • the one printing nip is simply replaced by two, each time rolling on top of one another softly.
  • the printing form cylinder no longer comes into direct contact with the abrasive medium paper. This allows the use of much softer materials without reducing the service life of the materials.
  • the doctor blade, the other wearing part on the printing form cylinder is guided through the webs made of hard material, so it does not touch the softer filling material suitable for thermal ablation either. With this measure, the service life of an intaglio printing plate manufactured in accordance with the invention is also considerably improved.
  • the gravure form is cleaned of ink residues by means of a regeneration device 15, preferably in the form of an ultrasound cleaning system, which is also designed as a system that can be turned on and off, similar to a chamber doctor blade, and the liquefiable substance from the depressions of the basic pattern of the gravure blank form 1 removed, so that the cycle (filling 2, image ablation 3, coloring 4, printing 6, regeneration 7, 8) can start again.
  • a regeneration device 15 preferably in the form of an ultrasound cleaning system, which is also designed as a system that can be turned on and off, similar to a chamber doctor blade, and the liquefiable substance from the depressions of the basic pattern of the gravure blank form 1 removed, so that the cycle (filling 2, image ablation 3, coloring 4, printing 6, regeneration 7, 8) can start again.
  • the ultrasonic cleaning system can be operated at at least two different levels, one level with low sound energy and / or with a liquid that only dissolves the paint, used to remove the remaining colors and the other levels with correspondingly higher sound pressures and / or other cleaning agents until the filling material is completely removed.
  • Another important advantage of the invention can be seen in the significantly improved quality, in particular the text reproduction, compared to conventional gravure printing.
  • This is achieved in that the writing resolution for the imaging clearly below the distance between two webs, for. B. at 500 lines per cm.
  • about 400 lines per cm are given as the lower limit for good text reproduction.
  • the conventional gravure form production has a resolution of a maximum of 120 lines per cm and must therefore simulate sharp edges with more or less small dots, interrupted by webs, which is why gravure printing always has the so-called sawtooth effect.
  • a binary, ie area-variable imagesetter In order to achieve the same number of gray levels in the image as rotogravure, which varies each point in up to 200 depth levels, a binary, ie area-variable imagesetter must be able to write at least 1000 lines per cm.
  • the present invention now, although this binary notation is also suitable in principle, prefers a mixed form of area-variable and conventional, ie depth-variable gravure screening, the so-called hybrid screen.
  • This grid is z. B. 500 lines per cm.
  • each point can be classified in several depths.
  • Low-pressure blank mold wear can be compensated for by the fact that the maximum imaging depth is significantly less than the depth of the depressions in the pre-structured intaglio blank. If the depth of the depressions is reduced due to the wear of the webs, the maximum depth of imaging can still be achieved for a long time.
  • the webs must be designed with walls that are as vertical as possible. A narrowing of the depressions due to increasing web thickness can be compensated for in terms of process technology during exposure by determining the volume characteristic from time to time and compensating accordingly.
  • a blank with regularly arranged depressions can also be used, as they are used in a similar way to conventional shape production.
  • the size of the wells can vary from the fine grid used today with cell sizes from 80 ⁇ m up to very large wells with z. B. 1 mm cell size or more.
  • the shape can have stochastically distributed depressions in order to counteract the risk of moiré formation, in particular in multi-color printing.
  • the random distribution can e.g. B. on the exposure of the gelatin used for a conventional etching instead of using a cross-louvre with speckles generated from coherent laser light.
  • a wax mixed with 5% carbon black is preferably used as the filling material.
  • the gravure form can also be regenerated with high pressure water.
  • an arrangement is used, as has already been disclosed, for example, by EP 9 310 798.
  • Such an arrangement consists of a double-walled chamber which is open towards the gravure form and is sealed off from the surroundings by means of seals guided over the form.
  • the inner cell contains nozzles through which the water is sprayed onto the surface of the gravure form at high pressure. It is suctioned off from the coated outer chamber area, so that the liquid is drawn off in particular from the already cleaned area and the gravure form is clean and dry after the treatment.
  • the high-pressure cleaner can operate at at least two different levels, one level with low liquid pressure and / or temperature essentially used to remove the remaining colors and the other levels with correspondingly higher liquid pressure and / or temperature used to partially or completely remove the filler material .
  • a basic cleaning or an intermediate cleaning Depending on whether a basic cleaning or an intermediate cleaning should be carried out, various pressure and temperature parameters are used. If cleaning is only to be carried out from adhering dirt and paint residues, processing is carried out at a relatively low temperature in the range below 50 ° C. and a low pressure of a few bar. If basic cleaning is to be carried out, temperatures in the range of the softening or melting temperature and pressures in the range of 30 bar are used. Agents such as surfactants and particles can be added to the cleaning water to improve their effectiveness.
  • the depressions of the gravure blank form can also be filled via an application roller, which draws from a material reservoir and which preferably rotates in the opposite direction to the rotogravure cylinder rotation. After the application is scraped off.
  • the angle of the doctor blade is preferably clearly negative, ie the doctor blade cuts like a knife.
  • the doctor blade can also be heated.
  • the gravure form can also be heated inductively before and during filling and during doctoring. The regeneration, the filling and the doctoring can preferably take place during one and the same cylinder revolution.
  • thermoplastics are used, heat, e.g. B. via an infrared radiation source or hot air and materials that suck the thermoplastic from the wells by means of capillary force, z. B. a highly absorbent paper, or a blow-off or suction device.
  • photopolymers which are hardened by laser and developed by means of water can be used as filler materials, or also varnishes which successively allow the wells to be completely filled via multiple application and intermediate drying, or the reactive systems already mentioned.
  • the filling materials are e.g. B. sensitized by soot for the radiation used.
  • the surface of the gravure form can be smoothed by polishing or hot doctoring.
  • This can also be carried out by a hot air jet or the laser beam used for image-wise ablation in low beam intensity.
  • the latter can take place in the course of normal imaging, in that the image-free areas are irradiated with defined power, which is, however, significantly lower in relation to the image-based ablation, so that only melting takes place.
  • thermally active laser sources such as semiconductor lasers, in particular a laser arrangement comprising a plurality of semiconductor lasers, NdYAG lasers, CO 2 lasers, and CO lasers, can be considered as the radiation wave.
  • a UV or blue laser e.g. B. be used on an argon laser.
  • spark erosion or a water jet can be used to remove material, e.g. B. when high resolutions are not required.
  • An image-wise absorbent material (e.g. blotting paper) can also be used. This procedure is explained in more detail in FIG. 6.
  • the basis is a multilayer film 30 '.
  • An absorbent material 30 a (e.g. blotting paper) is applied to a non-absorbent carrier 30 b.
  • the areas that are not required are cut out and removed using a CAD cutting plotter.
  • the film 30 ' is then brought to the gravure forme cylinder 10 previously provided with the filled blank.
  • the film 30 ' is ironed over the gravure cylinder using a heating roller 31.
  • Image-wise ablation can also be performed using a micromirror array 40.
  • the structure of such an array 40 is shown in FIG. 7.
  • a typical representative of such an array 40 consists of individually electrically tiltable micromirrors 41, typically 20 ⁇ m ⁇ 20 ⁇ m in area, which are arranged in a matrix of 1000 ⁇ 2000 elements.
  • FIGS. 8 and 9 show an example of an arrangement of such an array 40 for a pixel transmission unit for imagewise ablation.
  • the mirror relay 40 is uniformly illuminated by means of a high-energy arc lamp 42 and is imaged on the printing plate surface 44 via an optical system 43 with an imaging scale of approximately 1 such that the edge of the array 40 with the 2000 elements lies perpendicular to the direction of rotation of the forme cylinder. This edge defines the image lines.
  • a pixel is defined as the field on which a mirror is geometrically imaged, the area of a mirror being counted towards the half of the non-imaging edge regions adjacent to the respective neighboring mirror.
  • a mirror then reflects the energy radiated onto it onto the shape and into this pixel, if it stands so that it reflects into the solid angle that the apertures of the imaging optics dictate.
  • the printing form cylinder rotates and 2000 image columns are written simultaneously.
  • a mirror addresses a pixel when more than 50% of its area is mapped onto it.
  • a line of pixels that is stationary on the cylinder travels through the lines of the mirror array 40, ie is gradually illuminated by mirror array lines of increasingly higher numbers (FIG. 9).
  • Suitable electronics ensure that the image data is assigned synchronously with this migration.
  • the image data are filled in on the first line.
  • the image data moves down line by line and the next line of image data is transferred to the first line.
  • a mirror can always be either on or off.
  • a certain pixel can therefore receive 0 to 1000 units of energy. For example, to apply 4/10 of the maximum energy dose to a pixel, 400 mirrors are switched to "On" and 600 mirrors to "Off" during this hike while addressing the pixel.
  • the addressing of the mirror elements 41 is therefore changed synchronously with the rotation of the gravure printing surface 44, analogously to a shift register, so that the assignment of an image pixel on the printing surface 44 with its corresponding exposure data value over the entire imaging surface of the mirror array 40 to the mold surface 44 is retained.
  • the arrangement of the on / off mirrors is arbitrary, but may be predetermined in terms of process technology.
  • the image-based ablation 3 can address areas (image pixels) that are smaller than the area elements of the basic pattern of the intaglio printing blank 1, wherein in particular the image-based ablation 3 can even be carried out essentially independently of the basic pattern.
  • the pictorial ablation 3 can also be adapted to the basic grid, that is to say it has a certain geometric relationship to it. In the ideal case, the image-based ablation carries out structuring of the depressions of the basic grid which is necessary in terms of process technology.
  • the print head After one cylinder rotation, the print head is moved by 1000 pixels and the cycle starts again.
  • the print head can be fed continuously, which moves the head by 1000 pixels in one revolution of the printing form cylinder.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP96101487A 1995-02-07 1996-02-02 Procédé et appareil pour l'héliogravure Expired - Lifetime EP0730953B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19503951 1995-02-07
DE19503951A DE19503951C2 (de) 1995-02-07 1995-02-07 Verfahren und Vorrichtung für den Tiefdruck

Publications (3)

Publication Number Publication Date
EP0730953A2 true EP0730953A2 (fr) 1996-09-11
EP0730953A3 EP0730953A3 (fr) 1997-05-21
EP0730953B1 EP0730953B1 (fr) 2000-08-30

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EP96101487A Expired - Lifetime EP0730953B1 (fr) 1995-02-07 1996-02-02 Procédé et appareil pour l'héliogravure

Country Status (4)

Country Link
EP (1) EP0730953B1 (fr)
JP (1) JP2918487B2 (fr)
CA (1) CA2168595C (fr)
DE (2) DE19503951C2 (fr)

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WO2002078966A2 (fr) 2001-03-29 2002-10-10 Michael Huber München Gmbh Prepolymere et charge pour rouleau de similigravure pour ablation de profondeur variable
WO2003070476A1 (fr) * 2002-02-19 2003-08-28 Oce Printing Systems Gmbh Procede d'impression numerique et dispositif d'impression comprenant une forme d'impression a surface en forme de godets
EP1588846A1 (fr) * 2004-04-22 2005-10-26 CST GmbH Procédé de fabrication d'une plaque d'impression offset
WO2007051565A1 (fr) * 2005-11-02 2007-05-10 Man Roland Druckmaschinen Ag Procede et dispositif d'heliogravure au moyen d'une forme en creux effaçable et reutilisable
WO2007051572A1 (fr) * 2005-11-02 2007-05-10 Man Roland Druckmaschinen Ag Procede et dispositif de gravure d'images sur une forme en creux effaçable et reutilisable
WO2012125303A1 (fr) * 2011-03-17 2012-09-20 Eastman Kodak Company Dispositif d'impression réutilisable
WO2012134749A1 (fr) * 2011-03-17 2012-10-04 Eastman Kodak Company Dispositif d'impression réutilisable

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Publication number Priority date Publication date Assignee Title
DE19624441C1 (de) * 1996-06-19 1997-12-04 Roland Man Druckmasch Verfahren und Vorrichtung für den Tiefdruck mittels einer löschbaren Tiefdruckform
DE19807505A1 (de) * 1998-02-21 1999-08-26 Roland Man Druckmasch Bogenrotationsdruckmaschine mit Druckeinheiten für den Mehrfarbendruck und wenigstens einer Beschichtungseinheit
WO2001002170A1 (fr) 1999-06-30 2001-01-11 OCé PRINTING SYSTEMS GMBH Procede et dispositif d'impression pour imprimer un materiau support et pour nettoyer un cylindre d'impression
DE19939240C2 (de) * 1999-08-18 2002-09-26 Roland Man Druckmasch Verfahren und Vorrichtung zum reversiblen Bebildern einer Druckform
EP1080942B2 (fr) * 1999-08-31 2009-10-14 Agfa Graphics N.V. Méthode de régénération d'une plaque d'impression lithographique
DE29918488U1 (de) * 1999-10-20 1999-12-30 MAN Roland Druckmaschinen AG, 63075 Offenbach Bogenrotationsdruckmaschine mit Druckeinheiten für den Mehrfarbendruck und wenigstens einer Beschichtungseinheit
JP4493134B2 (ja) * 1999-12-28 2010-06-30 旭化成イーマテリアルズ株式会社 シームレスシリンダー印刷版の製造方法、及び製造装置
DE10051377B4 (de) * 2000-10-17 2004-08-12 Hell Gravure Systems Gmbh Verfahren und Vorrichtung zum Gravieren eines Druckformzylinders
US6718874B2 (en) * 2001-11-06 2004-04-13 Lawrence W. Gross Apparatus and method for eliminating dot gain in flexographic printing systems
WO2003041961A1 (fr) 2001-11-17 2003-05-22 Erhard Lorch Procede de realisation de moules de rotogravure, moules de rotogravure et leur utilisation
GB0221789D0 (en) 2001-11-22 2002-10-30 Heidelberger Druckmasch Ag Method and apparatus for producing an erasable and reinscribable printing forme
US6942312B2 (en) 2003-07-16 2005-09-13 Hewlett-Packard Development Company, L.P. Method and apparatus related to informative data associated with graphical image data
JP4855045B2 (ja) * 2005-10-20 2012-01-18 株式会社リコー クリーニング装置、プロセスカートリッジ及び画像形成装置
DE102005052159A1 (de) * 2005-11-02 2007-05-03 Man Roland Druckmaschinen Ag Tiefdruckform-Sleeve und seine Herstellung
FR2934199B1 (fr) * 2008-07-25 2011-07-15 Cuir Ccm Machine d'impression equipee d'un cylindre trame amovible
CN105415913A (zh) * 2015-12-14 2016-03-23 张栋 可再生环保凹版及其制造方法
DE102016002454A1 (de) 2016-03-01 2017-09-07 Klemens Kemmerer Verfahren und Vorrichtung für den Tiefdruck
DE102020107858B4 (de) 2020-03-23 2026-04-02 Thyssenkrupp Steel Europe Ag Verfahren zur Oberflächentexturierung einer Dressierwalze, Dressierwalze und dressiertes Stahlblech

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WO2002078966A2 (fr) 2001-03-29 2002-10-10 Michael Huber München Gmbh Prepolymere et charge pour rouleau de similigravure pour ablation de profondeur variable
WO2003070476A1 (fr) * 2002-02-19 2003-08-28 Oce Printing Systems Gmbh Procede d'impression numerique et dispositif d'impression comprenant une forme d'impression a surface en forme de godets
EP1588846A1 (fr) * 2004-04-22 2005-10-26 CST GmbH Procédé de fabrication d'une plaque d'impression offset
WO2007051565A1 (fr) * 2005-11-02 2007-05-10 Man Roland Druckmaschinen Ag Procede et dispositif d'heliogravure au moyen d'une forme en creux effaçable et reutilisable
WO2007051572A1 (fr) * 2005-11-02 2007-05-10 Man Roland Druckmaschinen Ag Procede et dispositif de gravure d'images sur une forme en creux effaçable et reutilisable
CN101300135B (zh) * 2005-11-02 2011-07-06 曼罗兰公司 可擦除且可再使用的凹印版的成像方法和装置
WO2012125303A1 (fr) * 2011-03-17 2012-09-20 Eastman Kodak Company Dispositif d'impression réutilisable
WO2012134749A1 (fr) * 2011-03-17 2012-10-04 Eastman Kodak Company Dispositif d'impression réutilisable

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EP0730953A3 (fr) 1997-05-21
EP0730953B1 (fr) 2000-08-30
CA2168595A1 (fr) 1996-08-08
JPH08230344A (ja) 1996-09-10
JP2918487B2 (ja) 1999-07-12
DE59605804D1 (de) 2000-10-05
DE19503951A1 (de) 1996-08-08
CA2168595C (fr) 2002-04-16
DE19503951C2 (de) 1998-04-09

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