EP2527148B1 - Procédé d'impression et élément d'impression offset - Google Patents

Procédé d'impression et élément d'impression offset Download PDF

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Publication number
EP2527148B1
EP2527148B1 EP12165667.2A EP12165667A EP2527148B1 EP 2527148 B1 EP2527148 B1 EP 2527148B1 EP 12165667 A EP12165667 A EP 12165667A EP 2527148 B1 EP2527148 B1 EP 2527148B1
Authority
EP
European Patent Office
Prior art keywords
ink
printing
viscosity
printing ink
roller
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.)
Not-in-force
Application number
EP12165667.2A
Other languages
German (de)
English (en)
Other versions
EP2527148A3 (fr
EP2527148A2 (fr
Inventor
Bernard Dr. Beier
Wolfram Dr. Kolbe
Martin Mayer
Heiner Pitz
Matthias Schlörholz
Johann Dr. Weigert
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2527148A2 publication Critical patent/EP2527148A2/fr
Publication of EP2527148A3 publication Critical patent/EP2527148A3/fr
Application granted granted Critical
Publication of EP2527148B1 publication Critical patent/EP2527148B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/002—Heating or cooling of ink or ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/005—Ink viscosity control means
    • 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
    • B41M1/06—Lithographic printing

Definitions

  • the present invention relates to a printing method and suitable for performing the printing process offset printing units.
  • Coloring units for the planographic offset printing are designed either as zone-free short inking units or as inking units with zonal inking.
  • the zoneless short inking units have an anilox roller.
  • the inking units with zonal ink dosing have a paint box, which has a metering device with ink zones.
  • the color zones arranged side by side over the printing width enable a different ink dosage from ink zone to ink zone.
  • the ink zones can be formed by zone screws.
  • the inking units with the zonal metering are designed as film inking units, in which a ink fountain roller together with a film roller has a film gap of, for example, 10 cm. B. forms 0.05 mm. Due to the film gap, the film roller does not touch the ink fountain roller.
  • the film roll rotates at a faster rate than the ink fountain roller and mills the top layer of a paint film on the ink fountain roller to pick up ink from the ink fountain roller.
  • the inking units with the zonal metering are designed as lifting inking units.
  • a squeegee roller takes over the ink from the ink fountain roller.
  • the squeegee roll is not permanently, but discontinuously on the ink fountain roller.
  • the squeegee roller periodically contacts the ink fountain roller to take over the ink from it.
  • zonenlose short inking units inking units without dispensers with ink zones
  • zonenlose short inking units inking units without dispensers with ink zones
  • DE 102006061393 A1 a zonenloses short inking unit, in which a roller together with a metering roller forms a metering gap, which is about 20 microns.
  • the said roller rotates at the same peripheral speed as the printing form cylinder.
  • Cooling provided for the said roller and the printing form cylinder are Cooling provided.
  • the described short inking unit is intended for the use of high-viscosity inks.
  • Previously known offset printing units basically have a certain property, regardless of whether the offset printing unit is part of a web-fed printing press or a sheet-fed press, whether the offset printing unit has an inking unit with ink zones or an inking unit without ink zones and whether the offset printing unit a Film inking unit or a lift inking unit has.
  • the specific feature is that the ink at their z. B. with the Aniloxwalze or with the zonal metering dosage taking place has a higher viscosity than in the applied to the printing form cylinder state of the ink.
  • Offset printing inks are thixotropic and therefore the viscosity of the offset printing inks is reduced by their rheological stress in the nip of the inking unit on the way to metering the printing forme cylinder.
  • a printing method in which a printing ink is zonally metered in a printing machine at a first viscosity by means of a metering device and at a second viscosity, which is greater than the first viscosity, is transmitted by means of a printing forme cylinder.
  • the invention has for its object to provide a further printing method and to provide suitable offset printing works to its implementation.
  • a printing ink is zonal in a printing machine at a first viscosity by means of a metering device and the ink is transferred at a second viscosity, which is at least 10 times greater than the first viscosity, by means of a printing forme cylinder, wherein the first viscosity less than 1 pascal second and the second viscosity is greater than 10 pascal seconds.
  • the printing method according to the invention differs fundamentally from the printing methods of the prior art, in which the second viscosity is less than the first viscosity.
  • the ink has a lower viscosity at its zonal dosage than in its state on the Printing form cylinder as defined in claim 1. Due to the low, first viscosity, the hydrodynamic loading of the dosing device is reduced by the color and consequently the precision of the zonal dosing is improved.
  • the larger second viscosity achieves a particularly sharp separation of printing areas and non-printing areas on the printing form cylinder and prevents the non-printing areas from accepting color (toning).
  • the printing method according to the invention can be a direct printing method according to a first variant and an indirect printing method according to a second variant.
  • the direct printing process the ink is transferred from the plate cylinder directly to the substrate.
  • the indirect printing method the ink is transferred from the printing form cylinder to a transfer cylinder (blanket cylinder), from which the ink is applied to the substrate, for. B. a printing substrate or preferably a printing material, is transmitted.
  • the second viscosity is at least 10 times greater than the first viscosity, and the first viscosity is less than 1 pascal second and the second viscosity is greater than 10 pascal seconds.
  • the first viscosity can be adjusted by reducing the viscosity of the printing ink in the printing machine and / or the second viscosity of the printing ink can be adjusted by increasing the viscosity of the printing ink in the printing press.
  • the reduction of the viscosity can be effected, for example, by a heating of the printing ink and the increase in the viscosity can be effected, for example, by a cooling of the printing ink.
  • the offset printing unit comprises an ink fountain with a metering device with ink zones, an ink fountain roller, an inking roller, which is permanently applied to the ink fountain roller, and a printing form cylinder, wherein the Ink fountain roller and the printing form cylinder are driven such that both have the same peripheral speed.
  • the ink fountain roller can be equipped with a heating device and / or the printing plate cylinder can be equipped with a cooling device.
  • the ink fountain roller heating device the printing ink can be heated to reduce the viscosity of the printing ink, so that the ink has a reduced viscosity in its zonal color metering by means of the metering device.
  • the cooling device of the printing form cylinder the printing ink can be cooled in order to increase the viscosity of the printing ink, so that the printing ink on the printing form cylinder has an increased viscosity.
  • the control takes place so that in the area of the color metering the color viscosity is smaller than one pascal second.
  • the control of the ink viscosity continues to be such that in the field of image formation, on the printing form cylinder, the ink viscosity is greater than 10 pascal seconds.
  • the difference in viscosity between the range of color metering and the area of image formation and, more specifically, the increase in viscosity from the range of color metering to the area of image forming can be achieved in various ways.
  • the low viscosity in the range of color metering can be given by a low viscosity of the printing ink at room temperature without its temperature control.
  • the low viscosity in the area of the ink metering can be achieved by a targeted reduction of the ink viscosity.
  • the reduction can be done by heating the ink.
  • the reduction can also be achieved by increasing the inking speed and / or generating a relative movement resulting in heat and smoothing.
  • for the purpose of reducing the ink viscosity it is possible to add water in droplet form or to add fountain solution in droplet form.
  • the action of ultrasound on the ink is possible to reduce the viscosity. Due to the reduced viscosity of the paint, the ink metering can be done at machine speed and is the use of a squeegee roller and the Use of a film roller is not required.
  • the inking unit can be built as short as an anilox inking unit.
  • the color dosage can be changed zonally over the entire printing width.
  • a knife ink fountain is preferably used because of the high circumferential speed of the ink fountain roller.
  • the inking zones of the knife paint box can be formed by zone screws, which bend through a metering knife of the knife paint box in the individual ink zones to different degrees. The zone screws can be driven manually or by motor.
  • the ink viscosity can be increased in various ways.
  • the ink can be cooled.
  • a carrier liquid of the printing ink can be evaporated therefrom.
  • the ink may be or contain an electrorheological fluid and the viscosity may be increased by an electric field.
  • vaporizing of components of the ink can be effected selectively to increase the ink viscosity.
  • the ink may contain an IR (infrared) absorber or NIR (near-infrared) absorber or contain UV (ultraviolet) photoinitiators, e.g. B. IR laser radiation or NIR laser radiation or UV radiation (generated by means of a UV lamp, UV LED or UV laser) absorb.
  • IR laser radiation or NIR laser radiation or UV radiation generated by means of a UV lamp, UV LED or UV laser
  • the increase in viscosity may be due to physical effects (especially evaporation or accelerated evaporation) or to chemical crosslinking. It may be necessary to evaporate or evaporate Aspirate paint components and provide a corresponding suction in the printing unit. In the case of chemical crosslinking, which can be effected by the UV radiation, the use of inertization may be expedient.
  • a zonally controllable light source or laser source can be used, which can preferably be controlled in wide zones, but optionally also in a print-image-accurate manner.
  • the control can take place both in the direction of rotation of the printing form cylinder and transversely thereto.
  • the offset printing unit according to the invention can be a printing unit for wet offset printing.
  • wet offset printing a certain amount of dampening solution must emulsify into the printing ink.
  • a point closure is avoided, which would otherwise be very dense printing screens or dot screens, z. B. at 80% -grastern, would occur.
  • the printing ink can have an increased water content or the printing ink can contain an additive which promotes emulsification with the dampening solution. Remedy could also be a more than three rollers existing inking, z. B.
  • the inking can z. B. have only two inking rollers, which roll on the printing form cylinder in the printing operation.
  • Such an inking unit would be more effective in terms of Emulisionstechnisch compared with a conventional anilox inking unit and would be cheaper to produce compared with conventional squeegee and conventional film inking units due to the reduced number of rolls.
  • the ink on the plate cylinder to impart a higher viscosity than in the ink fountain is the networking of color components, eg. B. by the fusion of latex particles, by the curing by means of UV radiation or by the precipitation of color components.
  • color components eg. B. by the fusion of latex particles
  • the curing by means of UV radiation or by the precipitation of color components e.g. B.
  • latex or synthetic resin dispersions on z As styrene-butadiene or styrene-methacrylate base or dispersions based on other polymers which dispersions form the ink, the increase the viscosity can be achieved by various measures. So z.
  • aqueous dispersions on the one hand to an increase in the concentration of the particles and thus to a combination of the individual polymer particles and on the other when exceeding the minimum film formation temperature leads to the formation of a continuous color film, which is highly viscous.
  • the viscosity of the color dispersion can be greatly increased by contact with polyvalent or polyvalent cations.
  • B. the surface of the plate cylinder, so the printing plate with multi-valent cations such.
  • B. divalent calcium cations or divalent magnesium cations or trivalent aluminum cations z. B. in the form of aqueous solutions whose fluorides or sulfates or nitrates act.
  • ionic clusters are formed, which significantly increase the viscosity of the ink.
  • a viscosity increase by adding acids would also be conceivable.
  • the viscosity increase can also be achieved by curing the printing ink with UV radiation.
  • the intensity and the wavelength range of the UV radiation is chosen so that it comes only to a very weak cross-linking by formation of a few bonds on the surface of the paint. As a result, an increase in viscosity is achieved without there being any adhesion of the ink to the printing form cylinder.
  • a specific "comfort range" of the temperature tailored to the printing press would have to be defined.
  • the latent heat storage particles By adding the latent heat storage particles to Printing ink can store the latter latent heat.
  • the stored thermal energy can also be dissipated with the ink on the substrate, whereby a further increase in temperature or a reduction of the ink viscosity can be counteracted in the inking unit.
  • the influence of the ink viscosity by the use of latent heat storage particles contained in the printing ink can also with other methods for changing the ink viscosity, z. B: be combined by means of ultrasound. As a result, the viscosity of the ink can be adjusted independently of temperature effects.
  • an offset printing ink with PCM located therein is already known.
  • the described PCM makes a phase transition from solid to liquid, can be encapsulated and z. B. are present as paraffin.
  • the described offset printing ink comprises the PCM in order to equip the workpieces coated with the offset printing ink (eg tarpaulins) so that they can store heat on their surface. It is described that for this purpose an intimate connection between the PCM and the workpiece is required. A targeted removal of heat from an offset printing inking unit by means of PCM, however, is not described.
  • EP 2 087 998 A1 already a rubber jacket of a roll, which has PCM for heat regulation. Again, the removal of heat by means of the PCM is not described.
  • the storage and removal of heat from a printing unit using PCM can preferably be achieved by the following method: A method for removing heat energy from a printing unit, wherein a printing ink is processed, the ink comprises a substance (preferably PCM), the substance to a first time within the printing unit is in a first state of matter, the substance is in a second state of aggregation at a second time within the printing unit, between the first and the second time, a phase transition between the first and the second state of matter of the substance takes place while heat energy is absorbed by the substance, and the heat energy is removed with the substance from the printing unit.
  • a substance preferably PCM
  • PCMs having a phase transition temperature between about 20 and about 50 ° C and a particle size between about 0.1 and 50 microns are suitable.
  • the addition to the offset printing ink is preferably carried out with a mass fraction of between about 5 and about 40% by weight.
  • the PCM (or the latent heat storage) is preferably selected as paraffin and also preferably introduced in encapsulated form in the printing ink.
  • Such encapsulated paraffins can be obtained, for example, from BASF under the trademark Mikronal. They typically have a size between 2 and 20 microns and the maximum heat capacity is typically about 110 kJ / kg.
  • Such PCM may be dispersed into known offset inks for use in the above process. In this case, a weight percentage of about 10% by weight is preferably selected.
  • offset ink z For example, the following color can be selected: K + E Novastar F 912 MAGIC BIO.
  • the storage capacity of the ink is about 11 kJ / kg.
  • Preferred PCM particles are: Mikronal DS 5000 X with a capsule diameter of 5 ⁇ m and a phase transition temperature of about 26 ° Celsius.
  • the encapsulated PCM particles can also take on additional functions in the offset printing ink.
  • the capsules can act as so-called spacers and abrasion protection particles.
  • the particles preferably have a size between about 1 and about 50 microns.
  • the addition to the offset printing ink is then preferably carried out with a weight percentage of about 0.5 to about 5% by weight.
  • FIGS. 1 to 4 are mutually corresponding elements and components designated by the same reference numerals.
  • FIGS. 1 to 4 In each case a printing press 1 is shown in fragmentary form.
  • the printing machine 1 is a sheet-fed printing machine.
  • the offset printing unit 2 comprises an inking unit 3 and a dampening unit 4.
  • the inking unit 3 comprises an ink fountain 5 with a ink fountain metering device 6 for the printing width (perpendicular to the image plane of FIGS. 1 to 4 ) different zonal dosing of a printing ink 7, which is stored in the ink fountain 5.
  • the ink fountain metering device 6 comprises ink zones which are arranged side by side in a row which runs parallel to a rotation axis of a ink fountain roller 8.
  • the ink zones can be formed by zone screws, metering slides, metering levers or metering tongues arranged in said row.
  • the ink fountain metering device 6 may comprise a metering knife, which is divided into said metering tongues.
  • the ink zone metering device 6 limited together with the ink fountain roller 8 a metering, in which the ink 7 is metered.
  • the dosing gap can be adjusted by varying the dosing elements (dosing slide, dosing lever, dosing tongues) or by adjusting the color screws from the color zone to the ink zone differently wide opened. This zonal adjustment takes place as a function of the printed image to be printed and causes a corresponding color profile in the ink film, which is formed by the zonal ink metering on the ink fountain roller 8.
  • the ink fountain roller 8 cooperates with an ink fountain roller 9, which is permanently applied to the ink fountain roller 8 in a roller contact point 10 in the printing operation.
  • the inking roller 9 is an inking roller, which rolls on a printing form cylinder 11 in the printing operation to colorize an offset printing plate 12 mounted thereon.
  • the outer circumference of the inking unit roller 9 is substantially the same length as the outer circumference of the printing plate cylinder 11.
  • the printing form cylinder 11 and its offset printing plate 12 transmits the ink located thereon on a transfer or blanket cylinder 13, which the drawing ink not a drawing transmits illustrated sheet-shaped substrate, whereby on this a printed image is generated.
  • the dampening unit 4 comprises a fountain roller 14 and a metering roller 15 adjacent thereto against which a dampening roller 16 rests.
  • An axially iridescent distributor roller 17 rests only on the dampening roller 16.
  • a bridge roller 18 is at the same time at the dampening roller 16 and the inking roller 9 at.
  • the illustrated roller contact positions refer to the state of the printing operation.
  • the ink fountain roller 8, the ink fountain roller 9 and the printing form cylinder 11 are rotatably driven such that these three rotation body 8, 9, 11 rotate in the printing operation at the same peripheral speed 22.
  • the ink fountain roller 8 and the ink fountain roller 9 rotate in synchronism, ie, in opposite directions of rotation.
  • the inking roller 9 rotates clockwise and rotates the ink fountain roller 8 in the counterclockwise direction.
  • the roller contact point 10 is a so-called squeezing gap, in which the inking roller 9 is pressed against the ink fountain roller 8 or the ink fountain roller 8 to the inking unit roller 9.
  • a heater 19 for heating the ink 7 in the ink fountain 5 is present.
  • the heating device 19 is integrated in the ink fountain roller 8 and can for example by a Temperierstoffkanal for a heating fluid, for. As hot water, are formed.
  • the heater 19 the peripheral surface of the ink fountain roller 8 is heated, which is in contact with the ink 7 in the ink fountain 5 and thereby the ink 7 is heated.
  • the ink 7 whose viscosity is reduced, so that the ink 7 has a low viscosity as defined in claim 1, when the ink 7 is metered by the ink fountain metering device 6.
  • the ink gives off heat to the environment, eg. B. to the inking roller 9, so that the viscosity of the ink increases again.
  • This larger viscosity has the ink preferably already in the moment of transfer of the ink from the ink fountain roller 9 on the plate cylinder 11 and its offset printing plate 12 and at the latest in the transfer of the ink from the printing plate cylinder 11 and its offset printing plate 12 on the blanket cylinder 13th
  • a cooling device for cooling the ink 7 on the plate cylinder 11 and its offset printing plate 12 is present.
  • the cooling device 2 is integrated in the printing form cylinder 11 and can by a Temperierstoffkanal for a cooling fluid, for. As cooling water, be formed.
  • the cooling device 20 cools the printing form cylinder 11 and thus the offset printing plate 12 and ultimately the printing ink 7 located thereon by cooling the printing ink 7 the printing form cylinder 11 and its offset printing plate 12, the viscosity of this ink is increased such that it is at least by a factor of 10 greater than the viscosity of the same ink in the ink fountain 7 or when dosing with the ink fountain metering device 6.
  • the embodiment according to FIG. 3 is a combination of the embodiments according to the Figures 1 and 2 , wherein both the heating device 19 of the ink fountain roller 8 and the cooling device 20 of the plate cylinder 11 is present.
  • a radiator 21 is directed to a peripheral region of the printing form cylinder 11, which is seen in the direction of rotation of the printing forme cylinder 11, after the inking roller 9 and before the blanket cylinder 13 is located.
  • the emitter 21 emits radiation onto the printing ink applied by the inking unit roller 9 to the printing form cylinder 11 or its offset printing plate 12, thereby increasing its viscosity.
  • the viscosity of the ink located on the printing form cylinder is increased by the irradiation thereof so that this viscosity is at least a factor of 10 greater than the viscosity of the same ink in the ink fountain 5 or during dosing with the ink fountain metering device 6.
  • the radiator 21 can receive a UV emitter, e.g. B. be a UV laser. Due to the UV radiation emitted by the radiator 21, superficial or partial crosslinking of the printing ink takes place on the printing form cylinder 1 l, as a result of which the viscosity thereof increases.
  • a UV emitter e.g. B. be a UV laser. Due to the UV radiation emitted by the radiator 21, superficial or partial crosslinking of the printing ink takes place on the printing form cylinder 1 l, as a result of which the viscosity thereof increases.
  • the printing ink 7 processed in the offset printing unit 2 can also contain IR absorbers or NIR absorbers, the emitter 21 being an IR emitter or NIR emitter.
  • the radiator 21 irradiation of the ink 7 on the printing form cylinder 11 this is heated so that certain components of this ink evaporate or accelerate evaporation, whereby the viscosity of the ink increases on the printing form cylinder 11.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)

Claims (8)

  1. Procédé d'impression dans lequel une encre d'impression (7) est dosée par zone dans une machine d'impression (1)
    - à une première viscosité à l'aide d'un dispositif de dosage (6)
    - à une seconde viscosité au moins supérieure à la première viscosité d'un facteur 10, qui est transmise à l'aide d'un cylindre porte-plaque (11), la première viscosité étant inférieure à 1 Pascale seconde et la seconde viscosité supérieure à 10 Pascale seconde
  2. Procédé d'impression selon la revendication 1,
    la première viscosité est réglée par un réduction de la viscosité de l'encre d'impression se produisant dans la machine d'impression.
  3. Procédé d'impression selon la revendication 2,
    la réduction de la viscosité de l'encre (7) étant provoquée par au moins l'une des étapes de procédé a) - g) parmi les étapes de procédé se constituant des étapes suivantes :
    a) un chauffage de l'encre d'impression (7) au moyen d'un dispositif de chauffage (19),
    b) un chauffage de l'encre d'impression au moyen d'un dispositif de chauffage (19) d'un rouleau d'encrier (8),
    c) un traitement aux ultrasons de l'encre d'impression (7),
    d) un apport d'une solution de mouillage ou d'eau dans l'encre d'impression (7),
    e) un apport de solution de mouillage ou d'eau sous forme de gouttelette à l'encre d'impression (7),
    f) une contrainte mécanique sur l'encre d'impression (7) et
    g) une contrainte mécanique de l'encre d'impression (7) effectuée par malaxage ou cisaillement
  4. Procédé d'impression selon la revendication 1,
    la deuxième viscosité de l'encre d'impression (7) étant réglée par une augmentation de la viscosité de l'encre d'impression (7) se produisant dans la machine d'impression (1).
  5. Procédé d'impression selon la revendication 6, l'augmentation de la viscosité de l'encre d'impression (7) étant provoquée par au moins l'une des étapes de procédé h) - t) constituées par
    h) un refroidissement de l'encre d'impression (7) au moyen d'un dispositif de refroidissement (20),
    i) un refroidissement de l'encre d'impression au moyen d'un dispositif de refroidissement (20) du cylindre porte-plaques (11),
    j) un traitement d'une encre électrorhéologique (7),
    k) une évaporation d'un composant faiblement visqueux de l'encre d'impression (7),
    1) une évaporation d'un fluide porteur faiblement visqueux de l'encre d'impression (7),
    m) une défaillance d'un composant de l'encre d'impression (7),
    n) une réticulation d'un composant de l'encre d'impression (7),
    o) une irradiation de l'encre d'impression (7) avec un rayonnement UV,
    p) une irradiation de l'encre d'impression (7) par un laser avec un rayonnement UV,
    q) une irradiation de l'encre (7) avec un rayonnement infra-rouge,
    r) une irradiation de l'encre d'impression (7) par un laser avec un rayonnement IR
    s) une irradiation de l'encre d'impression (7) avec un rayonnement NIR (proche de l'infra-rouge) et
    t) une irradiation de l'encre d'impression (7) par un laser avec un rayonnement NIR.
  6. Unité d'impression offset (2) pour la mise en oeuvre du procédé d'impression selon la revendication 1 comprenant
    - un encrier (5) dont la viscosité est pilotée (7) avec un dispositif de dosage (6) ayant des zones de couleur,
    - un rouleau d'encrier (8) avec un dispositif de chauffage (19),
    - un rouleau d'encrier de l'unité (9), qui porte en permanence contre le rouleau d'encrier (8),
    - un cylindre porte-plaques (11),
    le rouleau d'encrier (8) et le cylindre porte-plaque (11) étant entraînés de telle sorte que les deux ont la même vitesse périphérique (22) et le dispositif de chauffage chauffant l'encre d'impression (7) de manière à réduire la viscosité pour que l'encre d'impression (7) présente la viscosité définie dans la revendication 1.
  7. Unité d'impression offset (2) pour la mise en oeuvre du procédé d'impression selon la revendication 1 comprenant
    - un encrier (5) dont la viscosité est pilotée (7) avec un dispositif de dosage (6) ayant des zones de couleur,
    - un rouleau d'encrier (8),
    - un rouleau d'encrage (9), qui s'applique en permanence contre le rouleau d'encrier (8),
    - un cylindre porte-plaques (11) avec un dispositif de refroidissement (20),
    le rouleau d'encrier (8) et le cylindre porte-plaques (11) étant entraînés de telle sorte que les deux ont la même vitesse périphérique (22) et le dispositif de refroidissement (20) refroidissant l'encre d'impression (7) de manière à augmenter sa viscosité de sorte que l'encre d'impression (7) présentent la viscosité définie dans la revendication 1.
  8. Unité d'impression offset (2) pour la mise en oeuvre du procédé d'impression selon la revendication 1 comprenant
    - un encrier (5) dont la viscosité est pilotée (7) avec un dispositif de dosage (6) ayant des zones de couleur,
    - un rouleau d'encrier (8) avec un dispositif de chauffage (19),
    - un rouleau d'encrage (9), qui s'applique en permanence contre le rouleau d'encrier (8),
    - un cylindre porte-plaques (11) avec un dispositif de refroidissement (20),
    le rouleau d'encrier (8) et le cylindre porte-plaques (11) étant entraînés de telle sorte que les deux ont la même vitesse périphérique (22) et le dispositif de chauffage (19) chauffant l'encre d'impression (7) de manière à augmenter sa viscosité de sorte que l'encre d'impression (7) présentent la viscosité définie dans la revendication 1.
EP12165667.2A 2011-05-25 2012-04-26 Procédé d'impression et élément d'impression offset Not-in-force EP2527148B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011102382 2011-05-25
DE102011112487A DE102011112487A1 (de) 2011-05-25 2011-09-05 Druckverfahren und Offset-Druckwerk

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EP2527148A2 EP2527148A2 (fr) 2012-11-28
EP2527148A3 EP2527148A3 (fr) 2013-01-23
EP2527148B1 true EP2527148B1 (fr) 2014-06-11

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US (1) US20120297999A1 (fr)
EP (1) EP2527148B1 (fr)
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DE (1) DE102011112487A1 (fr)

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US9348269B1 (en) 2015-02-18 2016-05-24 Day International, Inc. Image transfer product including a phase change material
CN105818533B (zh) * 2016-03-17 2018-05-04 杭州科雷智能印刷科技有限责任公司 一种印刷机数字化精确供墨方法
US10471752B2 (en) * 2016-08-08 2019-11-12 Palo Alto Research Center Incorporated Anilox patterns and doctor blades for metering high viscosity pigmented inks
DE102017222094A1 (de) * 2017-12-06 2019-06-06 Koenig & Bauer Ag Druckwerk einer Druckmaschine und Verfahren zum Betreiben eines Druckwerkes einer Druckmaschine
DE102018206080A1 (de) * 2018-04-20 2019-10-24 Koenig & Bauer Ag Farbwerk für eine Druckmaschine
CN108749278A (zh) * 2018-07-09 2018-11-06 芜湖市华美工艺包装有限公司 一种印刷机润湿液调节装置
DE102019119535A1 (de) * 2019-07-18 2021-01-21 Leonhard Kurz Stiftung & Co. Kg Verfahren und Vorrichtung zum Übertragen einer Transferlage einer Transferfolie auf ein Substrat
JP7380105B2 (ja) 2019-11-12 2023-11-15 東洋製罐株式会社 印刷機の温度調節装置

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DE3101243C2 (de) * 1981-01-16 1983-10-13 Niedermayr Papierwarenfabrik Ag, 8200 Rosenheim Rotatives Flexo- bzw. indirektes Tiefdruckverfahren, sowie Vorrichtung zur Durchführung des Verfahrens
DE3324893C1 (de) * 1983-07-09 1985-03-14 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum Dosieren der Farbe bei Offsetdruckmaschinen
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DE19716261A1 (de) * 1997-04-18 1998-10-22 Pmd Textil Und Transferdruck G Verfahren zur Herstellung eines Dekorträgers
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DE29807386U1 (de) * 1998-04-23 1998-08-06 MAN Roland Druckmaschinen AG, 63075 Offenbach Farbwerk für eine Bogenoffsetdruckmaschine
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Also Published As

Publication number Publication date
CN102794987A (zh) 2012-11-28
EP2527148A3 (fr) 2013-01-23
CN102794987B (zh) 2015-07-01
US20120297999A1 (en) 2012-11-29
EP2527148A2 (fr) 2012-11-28
DE102011112487A1 (de) 2012-11-29

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