EP0730953B1 - Verfahren und Vorrichtung für den Tiefdruck - Google Patents
Verfahren und Vorrichtung für den Tiefdruck Download PDFInfo
- Publication number
- EP0730953B1 EP0730953B1 EP96101487A EP96101487A EP0730953B1 EP 0730953 B1 EP0730953 B1 EP 0730953B1 EP 96101487 A EP96101487 A EP 96101487A EP 96101487 A EP96101487 A EP 96101487A EP 0730953 B1 EP0730953 B1 EP 0730953B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intaglio
- forme
- blank
- printing
- 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.)
- Expired - Lifetime
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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
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- 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
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- 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
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- 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, according to the preamble of claims 1 and 15 an erasable and reusable gravure form, starting from one Gravure blank with a minimum of the maximum to be transferred Basic grid of colors.
- the type of coloring and the blank coating of the mold surface do not allow pure surface pressure.
- the whole drawing must be in lines, dots or Raster elements can be resolved. Because of the different depth and size of the individual printing elements, these more or less ink, the As a result, the imprint has different positions at the different parts of the image Color strength.
- DE 38 37 941 C 2 discloses a method for producing a Intaglio printing form, through which the images take place directly in the printing press can, in addition, the images of the rotogravure form deleted in the printing press and can be prepared for a new illustration. It will too a gravure blank with at least one to be transferred to the maximum Color amount of basic grid produced. Now in the printing press a nozzle of the pixel transfer unit or by image-correlated ironing a quantity of a thermoplastic which is inversely proportional to the image information Substance introduced into the well to increase the volume of the wells reduce. This means that in contrast to the imaging of a gravure blank, the other process applied image material. Can in the press then after the print job the thermoplastic substance by means of a Liquefied heat source and by means of a wiping and / or blowing or Suction device can be removed from the printing form cylinder.
- the invention is therefore based on the object of a method and to develop a device of the generic type for gravure printing, which improves the positional accuracy of the imaging.
- Another particular advantage of the method according to the invention and the Device for performing the method is that the Gravure raw mold wear is compensated for because the maximum imaging depth in of the substance on the rotogravure form is significantly less than that original depth of the depressions of the pre-structured raw form. That is because The depth of the depressions due to wear of the webs is smaller, nevertheless maximum imaging depth achievable for a long time.
- the bars of the raw form as perpendicular to the surface of the gravure form as possible executed in progress.
- the surface of the gravure form is regenerated again, by cleaning them of paint residues 7, the liquefiable substance is preferred completely detached from the pre-structured depressions 8 and the Wells are filled evenly again.
- the removal of the liquefied Substance from the pre-structured wells can be created using a heat source and / or blow-out or suction device.
- the imagewise ablation 3 can be supported in that the filled rotogravure blank 1 is set in rapid rotation such that 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 built up in layers to achieve a low heat capacity. So is between the surface layer of a few tenths of a mm thickness, which the Basic grid of the gravure blank 1 carries, and a base cylinder heat insulating layer, e.g. B. provided from glass fiber reinforced carbon.
- the thermoplastic used for the liquefiable substance can also be a resin, be a synthetic or natural wax.
- Fig. 4 shows a preferred embodiment of a device for performing of the method according to the invention.
- FIG. 5 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, the can be filled or refilled as granules.
- the melt 11 c is by gravity and Capillary action promoted to the surface of the gravure blank 1 and penetrates into the Depressions of the basic grid. Gravity can also by Air pressure or hydraulic pressure can be replaced by a pump.
- By the narrow gap between the gravure blank 1 and the application device 11 acts a capillary and hydrodynamic force that precisely conveys the amount of substance, which is needed to fill up.
- a constructive variant of this embodiment is that for Device 11 two moldings 11d, 11e (Fig. 5) are provided, one (11e) thereof, viewed in the direction of rotation of the intaglio forme cylinder 10, the another (11d) after the narrow gap between the gravure form 1 and the Application device 11.
- the molding 11d after the gap is positive through accurate guidance or by supporting jaws against the cylinder 10 in a lot kept a small distance (a few 1/100 mm) and to adjust the viscosity of the filler material can be heated so that the hydrodynamic forces are good are effective and a complete filling of the depressions of the basic grid is guaranteed.
- the rear edge of this bar 11d is sharp executed to ensure the clean tearing of the filling material from the gap.
- the front molding 11e is at a greater distance from the cylinder 10 (some 1/100 mm to a few 1/10 mm), so that the thereby increasing Although the gap is filled with material, the hydrodynamic forces are essential look less strong.
- the actual filling in the area of the molding 11d takes place, in particular by heating and pre-filling the heat-insulated blank printing surface prepared.
- the liquefiable substance 11 c can also be in excess in the heated state the gravure blank 1 are applied. Then just after cooling the excess portion by means of a doctor blade 12 which can be switched on and off Gravure blank 1 subtracted, that is, doctored and / or polished.
- the squeegee 12 can change here.
- the surface of the gravure blank 1 in the filled state repolished to set the roughness of the surface.
- the Gravure printing form can be colored by means of a coloring system 13. Is preferred a chamber doctor blade is used for this, since it takes up less space on the cylinder circumference needed as a conventional inking system and they while the other Process steps can be easily carried out by the gravure cylinder 10.
- the application devices 11 are, of course, the Doctor blade 12 and the pixel transfer unit (e.g. the laser 21) and others Equipment from rotogravure cylinder 10 can be switched off before the color and the Protect paint mist.
- the printing form cylinder does not come with the abrasive medium paper more directly in touch. This allows the use of much softer ones Materials without reducing the service life of the materials.
- the squeegee, the other wearing part on the printing form cylinder, is due to the webs made of hard material the softer filler material suitable for thermal ablation not either. Through this measure, the service life of an additional Gravure printing plate produced according to the invention significantly improved.
- the rotogravure plate is printed using a Regeneration device 15, preferably in the form of a Ultrasonic cleaning system, also as an on and off system is similar to a chambered doctor blade, cleaned of paint residues and the liquefiable substance from the depressions of the basic grid of Gravure blank 1 removed so that the cycle (filling 2, imagewise ablation 3, Coloring 4, printing 6, regeneration 7, 8) can begin again.
- a Regeneration device 15 preferably in the form of a Ultrasonic cleaning system, also as an on and off system is similar to a chambered doctor blade, cleaned of paint residues and the liquefiable substance from the depressions of the basic grid of Gravure blank 1 removed so that the cycle (filling 2, imagewise ablation 3, Coloring 4, printing 6, regeneration 7, 8) can begin again.
- the ultrasonic cleaning system is on at least two different levels operable, a level with low sound energy and / or with a Liquid that only dissolves the color, serves to remove the remaining colors and the other levels with correspondingly higher sound pressures and / or others Cleaning agents for the partial to complete removal of the filling material serve.
- Another important advantage of the invention is that over the conventional Gravure significantly improved quality, especially text reproduction see. This is achieved in that the write resolution for the imaging well below the distance between two webs, e.g. B. at 500 lines per cm. In order to text can be screened at this high resolution and it is essential to achieve sharper letter edges than in conventional gravure printing. In general, around 400 lines per cm are a good lower limit Text reproduction specified.
- Conventional gravure mold making has one Resolution of up to 120 lines per cm and must therefore have sharp edges more or less small dots, interrupted by bars, simulate why Gravure printing always has the so-called sawtooth effect.
- a binary, i.e. H. variable area working imagesetter can write at least 1000 lines per cm.
- the present invention now prefers, although this binary notation in principle is also suitable to use a mixed form of area-variable and conventional, i.e. H. variable-depth gravure screening, the so-called hybrid screen.
- This grid is with z. B. 500 lines per cm. However, any point here can be in several depths.
- the low pressure raw form wear can be compensated for by the fact that the maximum Depth of imaging is significantly less than the depth of the depressions in the pre-structured gravure blank. Now the depth of the wells is through The wear on the webs is less, but the maximum imaging depth is still long reachable. For this purpose, the webs must be closed with walls that are as vertical as possible shape. A narrowing of the depressions due to increasing web thickness can be technically compensated for the exposure by the Volume characteristic is determined from time to time and compensated accordingly.
- the gravure form can also be regenerated with high pressure water become.
- an arrangement is used, such as that already used by EP 9 310 798 has been disclosed.
- Such an arrangement consists of a double-walled chamber, which is open to the gravure form and by means of the form guided seals is sealed off from the environment.
- the inner cell includes nozzles through which the water with high pressure on the surface of the Gravure form is sprayed.
- the encased outer chamber area becomes suctioned off, so that the liquid in particular from the already cleaned area is pulled off and the gravure form is clean and dry after the treatment.
- the pressure washer can work on at least two different levels, a level with low fluid pressure and / or temperature in Mainly used to remove the remaining colors and the other levels with a correspondingly higher liquid pressure and / or temperature, sometimes up to complete removal of the filler.
- the deepening of the gravure blank form can also be filled via a Application roller take place, which draws from a material reservoir and which favors rotates counter to the rotogravure cylinder rotation.
- a Application roller takes place, which draws from a material reservoir and which favors rotates counter to the rotogravure cylinder rotation.
- the angle of the doctor blade is preferably clearly negative, i. H. the squeegee cuts like a knife.
- the doctor blade can also be heated.
- the Gravure form can be used before and during filling and during doctoring be heated inductively. The regeneration, filling and doctoring can preferably done during one and the same cylinder revolution.
- thermoplastics are used, heat, e.g. B. via a Infrared radiation source or hot air and materials by means of capillary action suck the thermoplastic from the wells, e.g. B. a highly absorbent Paper, or a blow-off or suction device can be worked.
- heat e.g. B. via a Infrared radiation source or hot air and materials by means of capillary action suck the thermoplastic from the wells, e.g. B. a highly absorbent Paper, or a blow-off or suction device can be worked.
- photopolymers which are hardened by laser and Developed by means of water, used, or varnishes that over multiple application and intermediate drying successively complete filling of the Permit deepening, or just the reactive systems already mentioned.
- the Filling materials are e.g. B. by soot entry for the radiation used sensitized.
- the surface of the gravure form can be polished or filled after filling Hot doctor blades are smoothed.
- This can also be a hot air jet, or for the Imaging ablation take over the laser beam used in low beam intensity. The latter can be done in the course of normal imaging, using the non-image Places with defined, but essential in relation to the pictorial ablation lower power are irradiated so that only melting takes place.
- thermally active laser sources such as semiconductor lasers, in particular a laser arrangement composed of a plurality of semiconductor lasers, NdYAG lasers, CO 2 lasers and CO lasers, are suitable 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
- This procedure is explained in more detail in FIG. 6.
- the The basis is a multilayer film 30 '.
- An absorbent material 30 a e.g. Blotting paper
- the film 30 ' is then to the brought previously with the filled blank mold gravure cylinder 10.
- a heating roller 31 By means of a heating roller 31, the film 30 'over the gravure cylinder ironed.
- 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 Such an array 40 consists of individually electrically tiltable micromirrors 41 of typically 20 ⁇ m x 20 ⁇ m area, in a matrix of 1000 x 2000 Elements are arranged.
- 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 illuminated uniformly by means of a high-energy arc lamp 42 and via a Optics 43 with an image scale of approx. 1 onto the printing form surface 44 see above shown that the edge of the array 40 with the 2000 elements perpendicular to Direction of rotation of the forme cylinder lies. This edge defines the image lines.
- On Pixel is defined as the field on which a mirror is geometrically mapped is, with the surface of a mirror in each case the half adjacent to it not imaging edge areas is calculated up to the respective neighboring mirror.
- the printing form cylinder rotates and there are 2000 each Image columns written at the same time.
- a mirror addresses a pixel if more than 50% of its area is mapped on this.
- One on the cylinder The stationary line of pixels travels through the lines of the mirror array 40, i. H. is gradually illuminated by mirror array lines of ever higher numbers (Fig. 9).
- Suitable electronics ensure for a synchronous assignment of the image data for this hike.
- the image data are filled in on the first line. Synchronous to the rotation of the cylinder the image data moves down line by line and the next line from Image data is transferred to the first line.
- a Mirror should always be either on or off. A certain pixel can so get 0 to 1000 units of energy. For example, a pixel with 4/10 to apply the maximum energy dose, 400 mirrors during this hike to "On" and 600 mirrors to "Off" while they are on Address pixels.
- the addressing of the mirror elements 41 is therefore synchronized with the rotation of the rotogravure mold surface 44 is changed analogously to a shift register, so that the association of an image pixel on the printing form surface 44 with its corresponding exposure data value over the entire imaging area of the Mirror arrays 40 on the mold surface 44 are retained.
- the arrangement of the The on / off mirror is arbitrary, but may be specified in terms of process technology.
- 3 areas can be addressed by the image-based ablation that are smaller than the surface elements of the basic grid of the gravure blank 1, in particular the imaginary ablation 3 even essentially can be carried out independently of the basic grid.
- the pictorial Ablation 3 is also adapted to the basic grid, that is to say in a certain one geometric relation to it. Ideally, the pictorial leads Ablation structurally necessary structuring of the wells of the Basic grid through.
- the print head After one cylinder rotation, the print head is moved by 1000 pixels and the Cycle starts again.
- a continuous feed can also be used of the printhead, the head in one revolution of the printing form cylinder shifted by 1000 pixels.
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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)
Description
- Fig. 1
- den prinzipiellen Aufbau zur Durchführung der erfindungsgemäßen Verfahrensschritte,
- Fig. 2
- eine Detailansicht der Oberfläche einer verwendeten Tiefdruckrohform,
- Fig. 3
- eine bildmäßige Ablation der verflüssigbaren Substanz von der Oberfläche einer Tiefdruckform in Abhängigkeit einer vorgegebenen Laserstrahlintensität pro Schreibzeile,
- Fig. 4
- ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung,
- Fig. 5
- eine Antragsvorrichtung,
- Fig. 6
- eine Bildpunkt-Übertragungseinrichtung zur bildmäßigen Ablation durch Ansaugen,
- Fig. 7
- den Aufbau eines Mikrospiegelarrays für eine Bildpunkt-Übertragungseinrichtung zur bildmäßigen Ablation,
- Fig. 8 und 9
- eine Anordnung zur bildmäßigen Ablation gemäß Fig. 7.
Claims (31)
- Verfahren für den Tiefdruck mittels einer lösch- und wiederverwendbaren Tiefdruckform,
ausgehend von einer Tiefdruckrohform mit einem mindestens auf die maximal zu übertragende Farbmenge ausgelegten Grundraster,
dadurch gekennzeichnet, daß jeweils innerhalb der Tiefdruckmaschine die Vertiefungen des Grundrasters der Tiefdruckrohform (1) gleichmäßig mittels einer verflüssigbaren Substanz durch eine Antragseinrichtung (11) befüllt werden (2),
dann bildmäßig Material durch eine Bildpunkt-Übertragungseinrichtung (21) aus den Vertiefungen abgetragen wird (3),
wobei Flächen (Bildpunkte) adressiert werden, die kleiner als die Flächenelemente des Grundrasters der Tiefdruckrohform (1) sind,
die bildmäßig gerasterte Tiefdruckform (20) mittels eines Einfärbesystems (13) in Form einer Kammerrakel eingefärbt (4) und dann im Tiefdruck gedruckt (9) wird,
schließlich die Tiefdruckrohform (1) nach dem Druckvorgang regeneriert wird (7, 8) und die Vertiefungen wieder gleichmäßig befüllt werden (2). - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die verflüssigbare Substanz im flüssigen Zustand im Übermaß auf die Tiefdruckrohform (1) aufgetragen wird und nach dem Erstarren der überschüssige Anteil mittels einer Rakel (12) von der Tiefdruckrohform (1) abgezogen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die vollständige Befüllung des Grundrasters der Tiefdruckrohform (1) durch mehrfachen Auftrag und Zwischentrocknung sukzessiv vorgenommen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die bildmäßige Ablation (3) durch thermische Energieeinwirkung erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Oberfläche der Tiefdruckrohform (1) im befüllten Zustand nachpoliert wird.
- Verfahren nach Anspruch 1, gekennzeichnet durch das Drucken im indirekten Tiefdruck.
- Verfahren nach Anspruch 1, gekennzeichnet durch die Verwendung von hochpigmentierten, insbesondere wasserbasierten Farben für die Einfärbung der Tiefdruckform (20).
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Regeneration (7, 8) der Tiefdruckform (1), die mit der Reinigung (7) von Farbresten auf der Tiefdruckform (20) beginnt, ein vollständiges Entfernen der verflüssigbaren Substanz aus den Vertiefungen des Grundrasters pro Zyklus mit Befüllung (2), bildmäßiger Ablation (3), Einfärbung (4), Drucken (6) und Regeneration (7, 8), umfaßt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Regeneration (7, 8) der Tiefdruckrohform (1) eine vollständige Entfernung der verflüssigbaren Substanz aus den Vertiefungen des Grundrasters pro einer vorgegebenen Anzahl von Zyklen mit Befüllung (2), bildmäßiger Ablation (3), Einfärbung (4), Drucken (6) und Regeneration (7) vorsieht und in den dazwischen liegenden Zyklen lediglich das durch die bildmäßige Ablation (3) entfernte Material der verflüssigbaren Substanz wieder aufgefüllt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß für die verflüssigbare Substanz ein Thermoplast verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß für die verflüssigbare Substanz Fotopolymere verwendet werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß für die verflüssigbare Substanz Lacke verwendet werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß für die bildmäßige Ablation (3) eine Mikrospiegelanordnung (40) verwendet wird, die gleichmäßig beleuchtet und bildelementartig durch verkippbare Mikrospiegelelemente (41) auf die Tiefdruckformoberfläche (44) abgebildet wird, wobei die Adressierung der Spiegelelemente (41) synchron mit der Rotation der Tiefdruckformoberfläche (44) analog einem Schieberegister geändert wird, so daß die Zuordnung eines Bildpunktes auf der Druckformoberfläche (44) mit seinem korrespondierendem Belichtungsdatenwert über die gesamte Abbildungsfläche der Spiegelanordnung (40) auf die Formoberfläche (44) erhalten bleibt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß mit der bildmäßigen Ablation (3) verfahrenstechnisch notwendige Strukturierungen der Vertiefungen des Grundrasters durchgeführt werden.
- Vorrichtung für den Tiefdruck zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet daßan eine in der Druckmaschine rotierende Tiefdruckrohform (1) mit einem mindestens auf die maximal zu übertragende Farbmenge der ausgelegten Grundraster in Umlaufrichtung eine Einrichtung (11) zum Antragen einer verflüssigbaren Substanz,eine Bildpunkt-Übertragungseinrichtung (21, 30, 40) zur bildmäßigen Ablation (3) auf der Oberfläche der Tiefdruckform (20),ein Einfärbesystem (13) in Form einer Kammerrakel und eine Regenerationseinrichtung (15) für das Grundraster der Tiefdruckrohform (1) anstellbar ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Tiefdruckrohform (1) als Hülse ausgeführt ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß zur Einrichtung (11) zum Antragen einer verflüssigbaren Substanz, in Rotationsrichtung des Druckformzytinders (10) gesehen, je eine Formleiste (11d, 11e) vor und nach dem Spalt zwischen der Tiefdruckrohform (1) und der Einrichtung (11) vorgesehen ist, wobei die Formleiste (11d) nach dem Spalt eine scharfe hintere Kante aufweist und formschlüssig gegen den Zylinder (10) in einem sehr geringen Abstand von wenigen 1/100 mm gehalten ist und die Formleiste (11e) vor dem Spalt gegen den Zylinder (10) in einem größeren Abstand von einigen 1/100 mm bis wenigen 1/10 mm gehalten ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß das Grundraster der Tiefdruckrohrform (1) Stege (9), die sich schraubenförmig mit einem definierten Winkel um deren zylinderförmige Oberfläche winden, aufweist.
- Vorriochtung nach Anspruch 15, dadurch gekennzeichnet, daß die Tiefdruckrohform (1) schichtförmig aufgebaut ist, wobei mindestens zwischen einer Oberflächenschicht, die das Grundraster beinhaltet, und einem Trägerzylinder eine wärmeisolierende Schicht eingelegt ist.
- Vorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß die wärmeisolierende Schicht aus glasfaserverstärktem Kohlenstoff besteht.
- Vorrichtung nach einem der vorangehenden Ansprüche 18 bis 20, dadurch gekennzeichnet, daß die Stege (9) möglichst senkrecht zur Oberfläche der Tiefdruckform verlaufend ausgeführt sind.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß regelmäßiges näpfchenförmiges Grundraster vorgesehen ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Grundraster stochastisch verteilte Vertiefungen vorgesehen sind.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Regenerationseinrichtung (15) eine Ultraschallreinigungsanlage vorgesehen ist.
- Vorrichtung nach Anspruch 24, dadurch gekennzeichnet, daß die Ultraschallreinigungsanlage auf mindestens zwei verschiedenen Stufen betreibbar ist, wobei eine Stufe mit niedriger Schallenergie und/oder mit einer Flüssigkeit, die nur die Farbe löst, zur Entfernung der verbliebenen Farbe dient und weitere Stufen zur teilweisen bis vollständigen Entfernung des Füllmaterials in den Vertiefungen des Grundrasters dienen.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Regenerationseinrichtung (15) ein Wasserhochdruckreiniger vorgesehen ist.
- Vorrichtung nach Anspruch 26, dadurch gekennzeichnet, daß der Wasserhochdruckreiniger auf mindestens zwei verschiedenen Stufen betreibbar ist, wobei eine Stufe mit niedrigem Flüssigkeitsdruck und/oder -temperatur zur Entfernung der verbliebenen Farbe dient und die weiteren Stufen mit entsprechend höherem Flüssigkeitsdruck und/oder- temperatur zur teilweisen bis vollständigen Entfernung des Füllmaterials in den Vertiefungen des Grundrasters dienen.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Bildpunkt-Übertragungseinheit ein zur thermischen Energieeinwirkung vorgesehener Laser (21), insbesondere ein Hochenergielaser eingesetzt ist.
- Vorrichtung nach Anspruch 28, dadurch gekennzeichnet, daß eine Halbleiterlaseranordnung aus mehreren Halbleiterlasern vorgesehen ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Bildpunkt-Übertragungseinrichtung eine auf das befüllte Grundraster der Tiefdruckrohform (1) aufbügelbare, bildmäßig beschnittene, saugfähige Folie (30) vorgesehen ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß als Bildpunkt-Übertragungseinrichtung eine Mikrospiegelanordnung (40) vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19503951A DE19503951C2 (de) | 1995-02-07 | 1995-02-07 | Verfahren und Vorrichtung für den Tiefdruck |
DE19503951 | 1995-02-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0730953A2 EP0730953A2 (de) | 1996-09-11 |
EP0730953A3 EP0730953A3 (de) | 1997-05-21 |
EP0730953B1 true EP0730953B1 (de) | 2000-08-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96101487A Expired - Lifetime EP0730953B1 (de) | 1995-02-07 | 1996-02-02 | Verfahren und Vorrichtung für den Tiefdruck |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0730953B1 (de) |
JP (1) | JP2918487B2 (de) |
CA (1) | CA2168595C (de) |
DE (2) | DE19503951C2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
DE102005052159A1 (de) * | 2005-11-02 | 2007-05-03 | Man Roland Druckmaschinen Ag | Tiefdruckform-Sleeve und seine Herstellung |
DE102005052156A1 (de) * | 2005-11-02 | 2007-05-03 | Man Roland Druckmaschinen Ag | Verfahren und Vorrichtung für den Tiefdruck mittels einer lösch- und wiederverwendbaren Tiefdruckform |
WO2007051572A1 (de) | 2005-11-02 | 2007-05-10 | Man Roland Druckmaschinen Ag | Verfahren und vorrichtung zur bebilderung einer löschbaren und wieder verwendbaren tiefdruckform |
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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 |
EP1189754B1 (de) | 1999-06-30 | 2003-02-12 | Océ Printing Systems GmbH | Verfahren und druckvorrichtung zum bedrucken eines trägermaterials und zum reinigen einer druckwalze |
DE19939240C2 (de) * | 1999-08-18 | 2002-09-26 | Roland Man Druckmasch | Verfahren und Vorrichtung zum reversiblen Bebildern einer Druckform |
DE69913518T2 (de) * | 1999-08-31 | 2004-11-11 | Agfa-Gevaert | Verfahren zur Erneuerung einer Flachdruckplatte |
DE29918488U1 (de) * | 1999-10-20 | 1999-12-30 | Roland Man Druckmasch | 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 |
DE10115434A1 (de) | 2001-03-29 | 2002-10-10 | Huber Fa Michael Muenchen | Präpolymer und Rasterwalzen-Füllmaterial für tiefenvariable Laserablation |
US6718874B2 (en) * | 2001-11-06 | 2004-04-13 | Lawrence W. Gross | Apparatus and method for eliminating dot gain in flexographic printing systems |
ATE388819T1 (de) | 2001-11-17 | 2008-03-15 | Erhard Lorch | Verfahren zur herstellung von tiefdruckformen, tiefdruckformen und deren verwendung |
GB0221789D0 (en) | 2001-11-22 | 2002-10-30 | Heidelberger Druckmasch Ag | Method and apparatus for producing an erasable and reinscribable printing forme |
DE10206936A1 (de) | 2002-02-19 | 2003-09-11 | Oce Printing Systems Gmbh | Digitales Druckverfahren und Druckeinrichtung mit einem näpfchenförmigen Druckträger |
ATE335603T1 (de) * | 2004-04-22 | 2006-09-15 | Cst Gmbh | Verfahren und vorrichtung zur herstellung von tiefdruckformen |
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 |
FR2934199B1 (fr) * | 2008-07-25 | 2011-07-15 | Cuir Ccm | Machine d'impression equipee d'un cylindre trame amovible |
US20120234190A1 (en) * | 2011-03-17 | 2012-09-20 | Yehuda Solomon | Reusable printing device |
US20120234189A1 (en) * | 2011-03-17 | 2012-09-20 | Yehuda Solomon | Reuseable printing device |
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 |
DE102020107858A1 (de) | 2020-03-23 | 2021-09-23 | Thyssenkrupp Steel Europe Ag | Verfahren zur Oberflächentexturierung einer Dressierwalze, Dressierwalze und dressiertes Stahlblech |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL264667A (de) * | 1960-05-12 | |||
US3455239A (en) * | 1966-05-02 | 1969-07-15 | United Aircraft Corp | Method and article for printing and engraving |
US3589289A (en) * | 1966-12-22 | 1971-06-29 | Burroughs Corp | Printing members and methods for graphic composition |
US3661575A (en) * | 1970-01-05 | 1972-05-09 | Grace W R & Co | Gravure printing plate of photocurable material |
DE2054833A1 (de) * | 1970-11-07 | 1972-05-10 | Basf Ag | Verfahren zur Herstellung von Druckformen für den Tiefdruck |
DE2531514A1 (de) * | 1974-07-17 | 1976-01-29 | Crosfield Electronics Ltd | Darstellung von tiefdruckoberflaechen |
IT1069122B (it) * | 1976-11-03 | 1985-03-25 | Bugnone Aldo | Procedimento per la costruzione di un rullo inciso per stampare |
NZ210426A (en) * | 1983-12-05 | 1989-01-06 | Leviton Manufacturing Co | Shock hazard prevention system for electrical appliance |
GB2198085B (en) * | 1986-11-29 | 1991-02-13 | Stc Plc | Printing apparatus and process |
DE3837941A1 (de) * | 1988-11-09 | 1990-05-10 | Roland Man Druckmasch | Verfahren und vorrichtung zur herstellung einer tiefdruckform |
-
1995
- 1995-02-07 DE DE19503951A patent/DE19503951C2/de not_active Expired - Fee Related
-
1996
- 1996-02-01 CA CA002168595A patent/CA2168595C/en not_active Expired - Fee Related
- 1996-02-01 JP JP8016833A patent/JP2918487B2/ja not_active Expired - Fee Related
- 1996-02-02 EP EP96101487A patent/EP0730953B1/de not_active Expired - Lifetime
- 1996-02-02 DE DE59605804T patent/DE59605804D1/de not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE102005052159A1 (de) * | 2005-11-02 | 2007-05-03 | Man Roland Druckmaschinen Ag | Tiefdruckform-Sleeve und seine Herstellung |
DE102005052156A1 (de) * | 2005-11-02 | 2007-05-03 | Man Roland Druckmaschinen Ag | Verfahren und Vorrichtung für den Tiefdruck mittels einer lösch- und wiederverwendbaren Tiefdruckform |
WO2007051572A1 (de) | 2005-11-02 | 2007-05-10 | Man Roland Druckmaschinen Ag | Verfahren und vorrichtung zur bebilderung einer löschbaren und wieder verwendbaren tiefdruckform |
WO2007051565A1 (de) | 2005-11-02 | 2007-05-10 | Man Roland Druckmaschinen Ag | Verfahren und vorrichtung für den tiefdruck mittels einer lösch- und wieder verwendbaren tiefdruckform |
WO2007051573A1 (de) | 2005-11-02 | 2007-05-10 | Man Roland Druckmaschinen Ag | Tiefdruckform-sleeve und seine herstellung |
Also Published As
Publication number | Publication date |
---|---|
JP2918487B2 (ja) | 1999-07-12 |
DE59605804D1 (de) | 2000-10-05 |
JPH08230344A (ja) | 1996-09-10 |
EP0730953A2 (de) | 1996-09-11 |
DE19503951A1 (de) | 1996-08-08 |
CA2168595A1 (en) | 1996-08-08 |
EP0730953A3 (de) | 1997-05-21 |
DE19503951C2 (de) | 1998-04-09 |
CA2168595C (en) | 2002-04-16 |
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