WO2013026904A1 - Verfahren zur herstellung einer druckform für den wasserlosen offsetdruck - Google Patents
Verfahren zur herstellung einer druckform für den wasserlosen offsetdruck Download PDFInfo
- Publication number
- WO2013026904A1 WO2013026904A1 PCT/EP2012/066433 EP2012066433W WO2013026904A1 WO 2013026904 A1 WO2013026904 A1 WO 2013026904A1 EP 2012066433 W EP2012066433 W EP 2012066433W WO 2013026904 A1 WO2013026904 A1 WO 2013026904A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ink
- printing
- carrier plate
- support plate
- plate
- Prior art date
Links
- 238000007639 printing Methods 0.000 title claims abstract description 77
- 238000007645 offset printing Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 56
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 239000012298 atmosphere Substances 0.000 claims description 12
- 230000003746 surface roughness Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000003851 corona treatment Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 238000009832 plasma treatment Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- YFSUTJLHUFNCNZ-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-M 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- ORLVNJCVINYVAY-UHFFFAOYSA-M [4-[bis[4-[2-(dimethylamino)phenyl]phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride Chemical compound [Cl-].CN(C)C1=CC=CC=C1C1=CC=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)C=2C(=CC=CC=2)N(C)C)C=C1 ORLVNJCVINYVAY-UHFFFAOYSA-M 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims description 2
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 1
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 claims 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims 1
- 239000012965 benzophenone Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 19
- 239000000758 substrate Substances 0.000 abstract description 8
- 238000007641 inkjet printing Methods 0.000 abstract description 3
- 239000000976 ink Substances 0.000 description 75
- 239000000203 mixture Substances 0.000 description 7
- 238000001723 curing Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000004447 silicone coating Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 125000000466 oxiranyl group Chemical group 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000002348 vinylic group Chemical group 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1066—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by spraying with powders, by using a nozzle, e.g. an ink jet system, by fusing a previously coated powder, e.g. with a laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/003—Forme preparation the relief or intaglio pattern being obtained by imagewise deposition of a liquid, e.g. by an ink jet
-
- 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
- B41N1/00—Printing plates or foils; Materials therefor
-
- 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
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/003—Printing plates or foils; Materials therefor with ink abhesive means or abhesive forming means, such as abhesive siloxane or fluoro compounds, e.g. for dry lithographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
- B41C2210/16—Waterless working, i.e. ink repelling exposed (imaged) or non-exposed (non-imaged) areas, not requiring fountain solution or water, e.g. dry lithography or driography
Definitions
- the present invention relates to a process for producing a printing form for waterless offset printing.
- Offset printing is an indirect lithographic printing process, which has been widely used in various fields since the beginning of the 20th century.
- offset printing is used in particular in the area of commercial printing as well as the printing of packaging of all kinds.
- the fundamental principle of offset printing goes back to developments in lithography, as it was already used at the end of the 18th century.
- wet offset printing in several mostly photochemical steps printing plates are produced whose surfaces are divided into hydrophilic and hydrophobic areas.
- water or an aqueous mixture of different auxiliaries such as, for example, isopropanol, are applied to the printing plates produced in this way with a roller, the so-called dampening unit.
- the hydrophilic areas of the printing form hold the water or the aqueous mixture, while the hydrophobic areas remain dry.
- the so-called inking unit we applied a greasy printing ink on the watered printing form, which repelled from the water-wetted hydrophilic areas and adheres to the dry hydrophobic areas.
- the so-colored printing form is rolled on a blanket, which then transmits the printed image on the medium to be printed. It is therefore an indirect printing method in which the printed image is not transferred directly from the printing plate to the medium to be printed.
- a disadvantage of wet offset printing is that both for the production of the printing form, as well as in the printing process itself by the dampening solution, a variety of excipients are used, which you want to avoid environmental technology.
- the waterless offset printing or dry offset.
- the silicone-coated printing plate is lipophobic and repels the printing ink.
- the printed image is applied by means of, for example, laser irradiation on the printing plate by the color-bearing areas of the printing plate are removed from the silicone coating.
- On the printing form there is a segregation of the ink in the paint components on the one hand and silicone oil on the other hand, wherein the color components adhere to the free of the silicone layer areas of the printing plate.
- European Patent Application EP 0 672 950 A1 discloses a corresponding printing plate for waterless offset printing, which can be structured accordingly by laser irradiation.
- a photosensitive layer is applied between a silicone coating and a carrier plate, which leads to a detachment of the silicone layer in the irradiated areas with laser radiation of suitable wavelength.
- the areas thus exposed are lipophilic, so that the printing ink adheres to the printing form in these areas.
- US 4,003,312 discloses a process for producing a master by means of inkjet technology.
- a master is provided by applying a silicone on a suitable substrate master by means of an inkjet printing device and curing the silicone to an elastomeric state.
- an inkjet printing device can be used to apply a catalyst on an uncured silicone on a master substrate, whereby the silicone is cured in the areas treated with the catalyst.
- DE 19500486 AI discloses a photosensitive lithographic printing plate which does not require moistening water.
- the printing plate comprises an aluminum support on which a primer layer, a photosensitive layer, and a silicone rubber layer are applied, the aluminum surface having an average roughness R a of 0.2 to 0.8 ⁇ m and a whiteness of 0.10 to 0, 35 has.
- EP 1046497 A1 discloses a method of making a lithographic printing plate comprising the step of spreading a novolak resin on a hydrophilic surface of a lithographic base in a predetermined pattern.
- US 2006/0188813 A1 discloses a hydrophilic film on a master, which is obtainable by heat or light induced curing of a composition comprising at least two five- or six-membered hydrophilic ring structures.
- the compound can be applied by means of inkjet technology on the surface.
- the waterless offset process offers the advantage that emission of the dampening solution, as occurs in wet offset printing, is avoided.
- a more precise printout of the halftone dots a better fine drawing and a lower dot gain are achieved.
- In the printing machine itself can be dispensed with a dampening unit, which significantly reduces the design effort. This also reduces the maintenance of the printing presses. By dispensing with fountain solution can over it In addition, a corrosion of metal colors are avoided, which increases the color fastness of the print.
- a disadvantage of the waterless offset printing technique is that the printing plates are more expensive than in the wet offset method.
- the printing plates used are also scratch-sensitive and, after their development (exposure), only difficult to correct.
- With previously used ink jet process for the production of printing plates can not be achieved sufficient resolutions to produce high quality prints.
- the achievable durability of the printing plates thus produced is significantly limited, so that they can be used only for printing very small runs. It is therefore an object of the present invention to provide a method for the production of printing plates for waterless offset printing, with which it is possible to overcome the disadvantages known from the prior art and in particular to manufacture printing plates more cost-effectively.
- Offset printing proposed comprising the method steps:
- the support plate has a surface tension> 35 mN / m, preferably> 38 mN / m and the ink has a surface tension ⁇ 30 mN / m, preferably ⁇ 25 mN / m in the state fixed to the support plate and the ink is applied in the areas of the carrier plate, which should bear no ink in offset printing.
- a suitable ink jet device such as an ink jet printer, it is possible with the method according to the invention to create print templates in a data processing system and transfer them directly to a printing plate to provide a printing plate.
- the printing plate is produced in such a way that the area of the carrier plate which should not bear any color as a printing form in the printing process, be provided by means of inkjet technology with a coating which is sufficiently lipophobic to reject the ink, while not coated areas of the support plate are sufficiently lipophilic that ink adheres.
- a negative of the printed image is applied to the carrier plate by coating the non-color-bearing background of the printing plate.
- support plates with a surface tension of> 35 mN / m are suitable for safely carrying printing inks, while inks which have a surface tension ⁇ 30 mN / m in the fixed state reject printing inks with sufficient certainty. It has thus surprisingly been found that a difference in the surface tension between the ink-bearing areas and the ink-repellent areas of the printing form of> 5 mN / m is sufficient to produce a printed image in waterless offset printing.
- the carrier plate consists of a material from the group consisting of aluminum, aluminum alloys, steel, polycarbonate, polyester and polyolefin.
- the surface is to be understood as the area of the carrier plate which comes into contact with the printing ink in the printing process.
- the carrier plate can be a composite structure which consists of a base carrier on which a material of the above mentioned group is applied.
- a polycarbonate layer is applied to a base carrier made of sheet steel.
- the carrier plate consists of only one material.
- the carrier plate is pretreated before the application of the ink to change the surface roughness.
- the surface roughness R a of the support plate is set to less than 1 ⁇ .
- the roughness is determined according to EN ISO 25178.
- the carrier plate is pretreated by means of pickling, etching, corona treatment or plasma treatment.
- the application of the ink to the carrier plate can be carried out in the process according to the invention by means of known ink-jet techniques.
- the ink is applied in the CIJ process (continuous ink-jet process) or in the DOD process (drop-on-demand process).
- CIJ printers are known in the field of industrial printing.
- the ink jet exits via a nozzle from a printhead, wherein the jet modulates via a piezoelectric transducer behind the outlet nozzle in order to achieve a uniform drop in the ink drop.
- the emerging drops are electrostatically charged via an electrode and then pass through a deflection field built up by a further electrode, within which they are deflected as a function of their charge. Deflecting method and multi-deflecting method is distinguished. Ink drops not needed for printing are collected and returned to the ink circuit.
- the ink drop leaves the nozzle that is actually to be applied as a printed image.
- the required ink drops are created by means of a heating element which heats the ink. This explosively forms a vapor bubble, which presses an ink drop from the nozzle by its pressure.
- a distinction is made between sideshooter systems and edgeshooter systems.
- piezo printers a piezoceramic element is deformed by applying an electrical voltage to press ink through a die by the change in shape. The drop size can be controlled by the applied electrical pulse.
- the ink is applied to the carrier plate with a dot density of> 1200 dpi, preferably> 2400 dpi.
- the ink After application to the carrier plate, the ink is fixed. This can be done by air drying. However, it may also be provided in one embodiment of the method according to the invention that the ink is fixed after application to the support plate by means of UV radiation and / or thermal radiation. This advantageously allows rapid fixation of the ink.
- the ink comprises a silicone, a polyisoprene and / or fluoroplastic, in particular a poly (dimethylsiloxane).
- the ink may include adjuvants such as solvents, surface tension adjusting agents in the fixed state, and / or fixing agents.
- the ink used is an UV-curing ink. It may be provided that the ink is free-radical curing or cationic curing. Radical curable inks use unsaturated resins having reactive groups that cause a crosslinking reaction via free radicals. In general, these are acrylated resins or monomers having acrylic acid groups (acrylic acid esters).
- acrylates In addition to the acrylates, other compounds with reactive double bonds, such as unsaturated polyester resins and vinylic monomers such as styrene can be crosslinked via this mechanism.
- photoinitiators contained in the ink spontaneously decompose into free radicals and initiate a chain reaction for the polymerization.
- the result is a three-dimensionally crosslinked, insoluble and solid structure of macromolecules. This happens in seconds or fractions of a second, so that immediately after hardening a resilient film is created.
- the resin base is an oxirane group-containing compound.
- an acid is used, which is activated only by the exposure.
- the resin component is usually a cycloaliphatic epoxy resin. The protons of the acid cause opening of the epoxide ring and initiate polymerization with continued chain growth.
- the ink may be applied to the carrier plate in an inert gas atmosphere, for example in a nitrogen, carbon dioxide, helium or argon atmosphere.
- an inert gas atmosphere for example in a nitrogen, carbon dioxide, helium or argon atmosphere.
- This can preclude adverse oxidation reaction of the inks or the support surface with atmospheric oxygen, thereby improving the adhesion of the ink to the support plate, which in turn results in durability the pressure plate and the pressure to be reached with this increased number of copies.
- an increased resolution can be achieved by reducing or suppressing the oxidation reactions induced by atmospheric oxygen, since an oxidatively induced fraying of the image dot edges can be avoided.
- Inert gas atmosphere in the sense of the present invention means that the oxygen concentration in the working atmosphere is ⁇ 5 vol., Preferably ⁇ 1 vol., Particularly preferably ⁇ 0.5 vol.%.
- the ink application takes place in a low-moisture atmosphere in order to exclude disturbing influences of any residual moisture.
- Low moisture means in the context of the invention that the water content in the working atmosphere is ⁇ 1 vol., Preferably ⁇ 0.5 vol., Particularly preferably ⁇ 0.1 vol .-%.
- the ink is applied in a dry inert gas atmosphere with a residual moisture content ⁇ 0.1% by volume.
- the above-described optional adjustment of the surface roughness R a of the support plate to less than 1 ⁇ in an inert gas atmosphere, in particular dry inert gas atmosphere. It is particularly preferred that a moisture and / or acidic material contact of the support plate between the setting of the surface roughness and the application of the ink is avoided.
- a silicone in particular a poly (dimethylsiloxane), a polyisoprene, in particular a poly-2-methyl-1,3-butadiene, or mixtures thereof, can be used as binder.
- a short-chain hydrocarbon, N-methyl-2-pyrrolidone, toluene or a mixture thereof may be contained.
- a triphenylmethane for example, in the ink applied to the support plate, a (4- (4,4'-bis (dimethylaminophenyl) benzhydryliden) cyclohexa-2,5-dien-1-ylidene) dimethyl ammonium chloride or a mixture of these be.
- a coloring agent is added to the ink. This makes it possible to supply the printing form after its preparation of a visual inspection to detect any errors.
- Fig. 1 shows schematically a manufacturing method according to the invention
- Fig. 2 shows a fiction, prepared according to printing
- Fig. 3 shows a fiction, prepared according to printing form with applied thereto
- Fig. 4 shows the printed image produced with a printing form according to the invention.
- Fig. 1 shows schematically a manufacturing method according to the invention for producing a printing form 100 for waterless offset printing.
- an ink 200 is applied by means of an ink jet device 400.
- the carrier plate 200 has a surface tension> 35 mN / m.
- the material for the support plate 200 for example, aluminum, an aluminum alloy, steel, a polycarbonate, a Polyester, or serve a polyolefin. It may also be provided that the carrier plate 200 has a composite structure in which a coating is applied to a support layer, which has a surface tension in the inventive area.
- the carrier plate 200 may be subjected to a suitable surface treatment before the ink 300 is applied thereto.
- suitable surface treatments are pickling, etching, corona treatment or plasma treatment.
- the ink droplets 310 are applied in the areas of the carrier plate 200, which should not carry any color in later offset printing.
- a protective gas atmosphere such as nitrogen or argon, takes place.
- FIG. 2 schematically shows a printing plate 100 produced according to the invention.
- the applied ink forms regions 320 which have a surface tension ⁇ 30 mN / m, while the regions not covered with ink 210 have a surface tension> 35 mN / m.
- area 210 carries color while areas 320 reject color.
- the fixing of the ink 300 can be done, for example, thermally or by UV irradiation. Likewise, depending on the ink 200 used, it may be provided that it is fixed or cured by air drying.
- FIG. 3 shows the schematic representation of a printing form 100 to which printing ink has been applied.
- the ink is accepted by the printing form in the region 500, while the region 320 covered by fixed or cured ink repels the ink.
- the ink-bearing areas are transferred to the blanket cylinder of the printing machine, which then transmits the printed image to the medium to be printed.
- FIG. 4 shows schematically a medium 600 printed with a printing plate produced in the method according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Methods (AREA)
- Printing Plates And Materials Therefor (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Ink Jet (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280040667.3A CN103732409A (zh) | 2011-08-25 | 2012-08-23 | 用于无水胶印的印刷版的制作方法 |
RU2014104167/12A RU2014104167A (ru) | 2011-08-25 | 2012-08-23 | Способ изготовления печатной формы для сухой офсетной печати |
KR1020147005955A KR20140051395A (ko) | 2011-08-25 | 2012-08-23 | 무수 옵셋 인쇄를 위한 인쇄 판의 제조방법 |
US14/239,975 US20140208969A1 (en) | 2011-08-25 | 2012-08-23 | Method for producing a printing plate for waterless offset printing |
JP2014526500A JP2014528856A (ja) | 2011-08-25 | 2012-08-23 | 無水オフセット印刷用の印刷版を製造するための方法 |
EP12759664.1A EP2748002B1 (de) | 2011-08-25 | 2012-08-23 | Verfahren zur herstellung einer druckform für den wasserlosen offsetdruck |
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DE102011052991.8 | 2011-08-25 | ||
DE102011052991A DE102011052991B4 (de) | 2011-08-25 | 2011-08-25 | Verfahren zur Herstellung einer Druckform für den wasserlosen Offsetdruck |
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US (1) | US20140208969A1 (de) |
EP (1) | EP2748002B1 (de) |
JP (1) | JP2014528856A (de) |
KR (1) | KR20140051395A (de) |
CN (1) | CN103732409A (de) |
DE (1) | DE102011052991B4 (de) |
RU (1) | RU2014104167A (de) |
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Cited By (1)
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RU167835U1 (ru) * | 2016-06-29 | 2017-01-10 | Эркин Садыкович Артыков | Устройство для изготовления офсетных печатных форм |
Families Citing this family (9)
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JP6476990B2 (ja) * | 2014-06-05 | 2019-03-06 | 大日本印刷株式会社 | 印刷版、印刷版の製造方法、機能性素子の製造方法および印刷装置 |
JP6686436B2 (ja) * | 2014-11-11 | 2020-04-22 | 東レ株式会社 | 水なし平版印刷版原版、および水なし平版印刷版を用いた印刷物の製造方法 |
CN105818562B (zh) * | 2015-01-05 | 2018-06-15 | 中国科学院化学研究所 | 一种水性油墨用版材及其制备方法 |
EP3138867B1 (de) | 2015-09-03 | 2019-10-02 | Evonik Degussa GmbH | Verwendung von eugenol-polyethern und eugenol-polyethersiloxanen als netzmittel |
US10907058B2 (en) | 2018-06-05 | 2021-02-02 | Xerox Corporation | Aqueous ink composition comprising polyisoprene |
US10907059B2 (en) | 2018-06-05 | 2021-02-02 | Xerox Corporation | Waterborne clear ink compositions |
CN111849255A (zh) * | 2020-06-12 | 2020-10-30 | 柳州市盛杰彩印有限公司 | 一种用于制备无水胶印印版硅胶层的组合物及其制备方法 |
CN111849354A (zh) * | 2020-06-12 | 2020-10-30 | 柳州市盛杰彩印有限公司 | 一种高耐印力无水胶印印版及其制备方法 |
CN117863747A (zh) * | 2024-01-17 | 2024-04-12 | 广州市普理司科技有限公司 | 一种浅墨干燥工艺及装置 |
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- 2012-08-23 RU RU2014104167/12A patent/RU2014104167A/ru not_active Application Discontinuation
- 2012-08-23 EP EP12759664.1A patent/EP2748002B1/de not_active Not-in-force
- 2012-08-23 KR KR1020147005955A patent/KR20140051395A/ko not_active Application Discontinuation
- 2012-08-23 WO PCT/EP2012/066433 patent/WO2013026904A1/de active Application Filing
- 2012-08-23 CN CN201280040667.3A patent/CN103732409A/zh not_active Withdrawn
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RU167835U1 (ru) * | 2016-06-29 | 2017-01-10 | Эркин Садыкович Артыков | Устройство для изготовления офсетных печатных форм |
Also Published As
Publication number | Publication date |
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DE102011052991A1 (de) | 2013-02-28 |
CN103732409A (zh) | 2014-04-16 |
RU2014104167A (ru) | 2015-09-27 |
US20140208969A1 (en) | 2014-07-31 |
EP2748002B1 (de) | 2017-01-04 |
EP2748002A1 (de) | 2014-07-02 |
KR20140051395A (ko) | 2014-04-30 |
JP2014528856A (ja) | 2014-10-30 |
DE102011052991B4 (de) | 2013-12-24 |
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