EP1254768B1 - Bebilderung und Löschung einer Druckform aus Polymermaterial mit Imid-Gruppen - Google Patents
Bebilderung und Löschung einer Druckform aus Polymermaterial mit Imid-Gruppen Download PDFInfo
- Publication number
- EP1254768B1 EP1254768B1 EP02007336A EP02007336A EP1254768B1 EP 1254768 B1 EP1254768 B1 EP 1254768B1 EP 02007336 A EP02007336 A EP 02007336A EP 02007336 A EP02007336 A EP 02007336A EP 1254768 B1 EP1254768 B1 EP 1254768B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- printing form
- chemical treatment
- hydrophilic
- hydrophobic
- 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
Links
- 238000007639 printing Methods 0.000 title claims abstract description 86
- 125000005462 imide group Chemical group 0.000 title claims description 8
- 238000003384 imaging method Methods 0.000 title description 5
- 229920000642 polymer Polymers 0.000 title description 5
- 239000000126 substance Substances 0.000 claims abstract description 36
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 29
- 239000007800 oxidant agent Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000002861 polymer material Substances 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000012286 potassium permanganate Substances 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 238000007645 offset printing Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229920001282 polysaccharide Polymers 0.000 claims description 4
- 239000005017 polysaccharide Substances 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002563 ionic surfactant Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001131 transforming effect Effects 0.000 claims 1
- 229920001721 polyimide Polymers 0.000 abstract description 21
- 239000004642 Polyimide Substances 0.000 abstract description 19
- 239000000243 solution Substances 0.000 description 13
- 239000002585 base Substances 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 230000005670 electromagnetic radiation Effects 0.000 description 7
- 238000010306 acid treatment Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000002048 anodisation reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 229920002312 polyamide-imide Polymers 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004962 Polyamide-imide Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- RFSUNEUAIZKAJO-VRPWFDPXSA-N D-Fructose Natural products OC[C@H]1OC(O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-VRPWFDPXSA-N 0.000 description 1
- -1 For example Substances 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- ISQINHMJILFLAQ-UHFFFAOYSA-N argon hydrofluoride Chemical compound F.[Ar] ISQINHMJILFLAQ-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012822 chemical development Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Images
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
- B41C1/1041—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by modification of the lithographic properties without removal or addition of material, e.g. by the mere generation of a lithographic pattern
Definitions
- the invention relates to a method for producing a structure of hydrophilic and hydrophobic areas on a surface, which in a first, substantially unstructured state has a polymer material with imide groups. Furthermore the invention relates to a printing form, in particular for use as a printing plate in Offset printing, with a surface for printing.
- the lithographic printing is based, in simple terms, on the utilization of the Immiscibility of oil and water on a surface, the so-called printing plate, wherein the lipophilic (hydrophobic) solution or the ink or color through the image forming areas and the water or the hydrophilic solution through the Non-image forming areas of the printing surface are held.
- the in suitably prepared printing surface with hydrophilic and lipophilic substance or solution, especially water and ink or paint is wetted, so keep the non-image areas preferably the hydrophilic substance or solution and back repel the lipophilic substances, while the imagewise areas the lipophilic solution or accept ink or paint and repel the hydrophilic substances.
- the lipophilic substance in a suitable manner on the surface of a material on which the image is to be fixed, for example paper, fabric, polymers and the same.
- the aluminum has been used as a material for printing plates. Usually The aluminum is first a graining process and then a subsequent Subjected to anodization.
- the anodization serves to anodic To provide oxide layer whose adhesion is improved by the grain.
- the Graining becomes the hydrophilic properties of the background of the printing plate strengthened.
- a strong acid such as sulfur or Phosphoric acid used to subsequently by another method, such as For example, in a thermal silicization process or the so-called Electrosilication to make the surface hydrophilic.
- a large number of radiation-sensitive materials that are used to generate images in the Use of the lithographic printing process are suitable, in that they after Exposure and, if necessary, necessary development and fixation provide an image-wise area that can be used for printing.
- photopolymerizable substances can be used for this purpose.
- the arrangement described above is subjected to imagewise exposure by locally selective energy is supplied. This can, for example, by means of exposure through a mask with UV light or by direct writing with a laser respectively.
- lithographic printing plates of the type described above are usually with treated a developer solution, which is typically an aqueous alkaline or basic solution with organic additives.
- oxide ceramics which for example in the form of Coatings are present on a printing plate, find use.
- EP 0 911 154 A1 proposes, as materials for the plate surface, titanium dioxide (TiO 2 ) and zirconium dioxide (ZrO 2 ), which can be present in ceramic form both pure and with other metallic additives in different mixing ratios.
- This surface is hydrophobic when unexcited and can be rendered hydrophilic by irradiation with ultraviolet light. Imaging is now done by illuminating the entire surface of the plate with ultraviolet light and masking areas of ink which are to be printed.
- titanium dioxide layers as a substrate turns out to be a particular disadvantage
- the titanium dioxide layers are switchable with UV light, but a small Have stability with respect to the timing of the switching.
- a sufficient Switching or sufficient stroke d. H. a sufficient flip from hydrophilic to hydrophobic can only be achieved in insufficient strength.
- the complete cleaning of the substrate after the pressure is not to be underestimated Problem in practice.
- From US 4,568,632 is the structuring of polymer surfaces or polymer films known which at least one imide group in the corresponding monomer, be it in the main chain or a side chain of the polymer built therefrom. It will a method for etching or ablation of polyimide without chemical Treatment steps disclosed.
- the polyimide is irradiated with ultraviolet light Wavelength shorter than 220 nm, for example, by an argon-fluoride excimer Laser exposed so that a photocatalytic decomposition takes place, wherein volatile Products are removed by suitable means.
- the reaction takes place in an atmosphere, which Having oxygen.
- Structuring can be done, for example, by using a Large-area illuminated mask or by scanning the surface with a Exposure beam for spatially selective reaction can be achieved. This structuring can without significantly affecting the surface remaining polyimide be achieved. A structuring of the surface into hydrophobic and hydrophilic Areas, in particular a use of the structured surface for the Printing process according to a lithographic process or an offset process therefore can not be achieved.
- Document EP 0 743 177 A1 discloses a lithographic printing plate and a method for structuring such a lithographic printing plate.
- a pulsed laser beam having a wavelength in the ultraviolet spectral range for example, an ArF excimer laser
- a thermoplastic polymer film for example, a polyimide surface having selectively exposed locally. The exposed areas are color-rejecting while the unexposed areas are color accepting.
- This object is achieved by a method for producing a structure of hydrophilic and hydrophobic areas on a surface having the features according to claim 1 and by a printing forme having the features according to claim 11 solved.
- those needed for the lithographic printing process hydrophobic and hydrophilic regions on a polyimide surface thereby produced, that they are optionally imaged after a chemical initialization or is structured by the imaging is done by electromagnetic radiation and completed by another chemical reaction. After printing can deletion of the imaged structure by another chemical reaction.
- the method according to the invention provides a printing plate, which are used for printing in a conventional wet offset method can.
- the printing form according to the invention is also suitable for printing with additive-free dampening solution, such as pure water, so for example without the usual used isopropanol.
- the structured polyimide surface is replaced by another chemical process can be extinguished.
- the invention Method provides a reversibly writable and erasable surface Available.
- polyimide is understood as meaning a polymer material whose associated monomer is the functional group of an imide having. In this case, this group can occur in the main chain or a side chain of the polyimide.
- the polyimide is abbreviated to polybenzoldiimide (PBDI) for short
- PAI polyamide-imide
- the process according to the invention can also be used with other imide-containing substances.
- the polymer used is highly hydrophobic in its original state, so it is good for ink-carrying.
- the method according to the invention for producing a structure of hydrophilic and hydrophobic regions on a surface which has a polymer material with imide groups in a first, essentially unstructured state is characterized in that a locally selective exposure to electromagnetic radiation through local irradiation Energy is carried out in time subsequent chemical treatment of the surface with an oxidizing agent.
- the electromagnetic energy is preferably generated by a UV light source which emits light having a wavelength between 220 and 460 nm.
- the oxidizing agent hydrogen peroxide (H 2 O 2 ), oxygen (O 2 ), ozone (O 3 ) or potassium permanganate (KMnO 4 ) or combinations of these oxidizing agents may preferably be used.
- a liquid with ionic surfactants can also be used in the subsequent chemical treatment.
- the locally selective exposure can be preceded by a large-scale surface chemical treatment with a strong base.
- the strong base is preferably an aqueous solution of potassium hydroxide (KOH) and / or sodium hydroxide (NaOH).
- a large-scale chemical treatment of the surface is made with a strong acid.
- the strong acid is preferably an aqueous solution of sulfuric acid (H 2 SO 4 ) and / or hydrochloric acid (HCl) and / or nitric acid (HNO 3 ) and / or the like.
- the large-area chemical treatment of the surface can be carried out with a suitable corresponding plate cleaner.
- a printing form according to the invention which in particular for use as a printing plate in offset printing, includes a surface for printing, which is a Polymer material having imide groups, preferably PBDI or PAI.
- a surface for printing which is a Polymer material having imide groups, preferably PBDI or PAI.
- Such Surface is with the method according to the invention, in particular with the individual options described above, structurable. Consequently, the invention provides a rewritable printing form created.
- the printing form of the invention in a printing unit or a printing press are used.
- a printing unit is distinguished characterized in that it is provided for printing with a printing form according to the invention.
- a printing machine in particular an offset printing machine, with at least one Feeder, a printing unit and a boom then has at least one printing unit, which is provided for printing with a printing form according to the invention.
- FIG. 1 shows a flow diagram of the method according to the invention with a chemical initialization step involving a treatment with a basic substance includes.
- the flowchart serves to explain the individual process steps and their order.
- the polymer material used in the process according to the invention is a substance which in the first, original state strongly hydrophobic, ie at the same time good color leading, is.
- the polymer material is subjected to a base treatment. For example, it will for a certain time interval in the minute range of an aqueous solution of a strong Base, such as potassium hydroxide or sodium hydroxide exposed. Through this Treatment, the polymer material becomes hydrophilic. Through a large area Base treatment 10 thus the surface is hydrophilic over a large area. In this condition the actual structuring is carried out: it becomes the color-leading and not color-guiding areas, ie image locations and not image locations. It will be one local exposure 12 by electromagnetic radiation, preferably in the UV range, performed. The next step is an oxidation 14.
- a strong Base such as potassium hydroxide or sodium hydroxide exposed.
- the oxidizing agent For example, hydrogen peroxide, potassium permanganate or the like, switches or develops the property of the surface, which of the electromagnetic radiation was exposed.
- hydrophilic areas now become hydrophobic.
- a treatment of the surface with a polysaccharide or polysaccharide mixture, preferably D-arbinose and / or D-fructose This additional optional step improves a stabilization of the hydrophobic or hydrophilic areas.
- the thus structured surface is now ready to print.
- the pressure 16 can by means of a Acid treatment 18 the structuring of the surface can be erased.
- a strong acid such as an aqueous solution of Sulfuric acid, hydrochloric acid, nitric acid or the like or plate cleaner exposed.
- This process step makes the surface hydrophobic again. It is possible one Iteration 110 to perform the specified sequence of steps.
- a Renewed local exposure 12 can be one structure with another, in general deviating topography can be produced on the surface.
- FIG. 2 is a flowchart of the direct method according to the invention Structuring of the polyimide surface by electromagnetic radiation. This Flowchart is used to explain the individual process steps and their Sequence.
- the used polymer material which in a first, originally hydrophobic state is exposed to a local exposure 20.
- the time subordinate Oxidation 22 structuring is achieved: the localized exposed areas are now hydrophilic.
- the thus structured surface can be used for printing 24 be used.
- acid treatment 26 it is possible to change the structure hydrophilic and hydrophobic areas to delete.
- the surface is through the Acid treatment 26 converted to the first, hydrophobic state. So it is again possible to carry out an iteration 28 of the steps of the method according to the invention.
- FIG. 3 schematically illustrates the structuring of a printing form, its surface Having polyimide, by means of the inventive method including a chemical initialization step.
- five states of the printing plate 30 shown in the order indicated by the arrows temporal order.
- the Printing form 30 on a surface which has a large area hydrophobic region 32nd represents.
- the surface becomes large area in a hydrophilic region 34th transformed.
- Selective exposure causes locally limited areas first type 36 generated on the large area hydrophilic surface 34.
- Subsequent oxidation produces hydrophobic regions 32 in addition to hydrophilic regions Areas 34.
- a structuring of the surface of the printing plate 30 is achieved. This structure can be erased by the printing plate 30 a large area Acid treatment is subjected. After this step, the printing plate 30 is again with a large area hydrophobic area 32 before.
- the polymer material preferably PBDI or PAI
- PBDI or PAI is applied in a thickness between a still manageable film of about 25 microns to a layer thickness of a few millimeters on a suitable support, for example on an aluminum plate.
- the surface of the applied polymer material is then subjected to a base treatment, wherein preferably sodium hydroxide (NaOH) and / or potassium hydroxide (KOH) is used.
- NaOH sodium hydroxide
- KOH potassium hydroxide
- concentrations for example, 0.5 to 1 molar solutions are used with sodium hydroxide, it being noted that too high concentrations (of about 5 molar solution) may destroy the polymeric material.
- the polymer material which is originally completely hydrophobic in its first state, is essentially completely hydrophilized by the base treatment, whose duration is substantially completely in the range of a few minutes, preferably about one minute.
- the imaging takes place either through a mask or through locally selective illumination by a light beam which is directed locally to the printing surface.
- a UV laser is preferably used as the light source.
- the locally selective exposure is to be regarded as an initialization reaction, followed by a chemical treatment of the surface.
- the exposed surface is then exposed to an oxidizing agent, e.g. As hydrogen peroxide (H 2 O 2 ), oxygen or ozone.
- an oxidizing agent e.g. As hydrogen peroxide (H 2 O 2 ), oxygen or ozone.
- potassium permanganate (KMnO 4 ) can also be used in the liquid phase.
- the preferred concentration of hydrogen peroxide is a 15% solution of hydrogen peroxide in water.
- a 0.02 molar solution in water is preferably used.
- the polymeric printing form thus prepared is used for printing. After printing, the printing form can be erased and cleaned at the same time, whereby all the usual known mechanical cleaning options can be used per se:
- the surface is exposed to a strong acid, eg. As sulfuric acid (H 2 SO 4 ), hydrochloric acid (HCl) or nitric acid (HNO 3 ).
- the acids should preferably all be present in a concentration of 1 molar solution.
- FIG 4 is a schematic representation of the structuring of a printing plate, whose Surface polyimide, by means of the inventive method without chemical initialization step shown by treatment with a basic substance.
- Fig. 4 shows four states of the printing plate 30, whose temporal order by the arrows is indicated.
- the printing plate 30 is a large area hydrophobic Area 32 before.
- initialized regions of the second type 38 are generated on the surface of the printing form 30.
- oxidation it becomes hydrophilic regions 34.
- the surface thus has one Structure of hydrophobic areas 32 and hydrophilic areas 34 so that they to Printing can be used.
- After a large-scale treatment with a strong Acid the surface of the printing plate 30 is achieved that the printing form over a large area again hydrophobic.
- FIG. 1 shows the process of the locally selective one described with reference to FIG Exposure by local irradiation of electromagnetic energy to a reverse one Hydophilization or hydrophobing result, if the printing form temporally is subsequently exposed to a chemical treatment by an oxidizing agent.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Rotary Presses (AREA)
- Liquid Developers In Electrophotography (AREA)
Description
- Figur 1
- ein Ablaufdiagramm des erfindungsgemäßen Verfahrens mit einem chemischen Initialisierungsschritt, der eine Behandlung mit einer basischen Substanz umfasst,
- Figur 2
- ein Ablaufdiagramm des erfindungsgemäßen Verfahrens mit direkter Strukturierung der Polyimidoberfläche durch elektromagnetische Strahlung,
- Figur 3
- eine schematische Darstellung der Strukturierung einer Druckform, deren Oberfläche Polyimid aufweist, mittels des erfindungsgemäßen Verfahrens einschließlich eines chemischen Initialisierungsschrittes, und
- Figur 4
- eine schematische Darstellung der Strukturierung einer Druckform, deren Oberfläche Polyimid aufweist, mittels des erfindungsgemäßen Verfahrens ohne chemischen Initialisierungsschritt durch Behandlung mit einer basischen Substanz.
- 10
- Basenbehandlung
- 12
- lokale Belichtung
- 14
- Oxidation
- 16
- Druck
- 18
- Säurebehandlung
- 110
- Iteration
- 20
- Iokale Belichtung
- 22
- Oxidation
- 24
- Druck
- 26
- Säurebehandlung
- 28
- Iteration
- 30
- Druckform
- 32
- hydrophober Bereich
- 34
- hydrophiler Bereich
- 36
- initialisierter Bereich erster Art
- 38
- initialisierter Bereich zweiter Art
Claims (14)
- Verfahren zur Erzeugung einer Struktur aus hydrophilen (34) und hydrophoben (32) Bereichen auf einer in einem ersten, im wesentlichen unstrukturierten Zustand ein Polymermaterial mit Imid-Gruppen aufweisenden Oberfläche einer Druckform (30), in welchem die Oberfläche der Druckform (30) örtlich selektiv durch lokale Einstrahlung elektromagnetischer Energie belichtet wird,
gekennzeichnet durch
eine der Belichtung zeitlich nachgehende chemische Behandlung der Oberfläche mit einem Oxidationsmittel. - Verfahren gemäß Anspruch 1,
gekennzeichnet durch
eine der örtlich selektiven Belichtung zeitlich vorhergehende großflächige chemische Behandlung der Oberfläche mit einer starken Base. - Verfahren gemäß Anspruch 1 oder 2 mit einem zusätzlichen, zeitlich nachgeordneten Verfahrensschritt des Überführens der Oberfläche in den ersten, im wesentlichen unstrukturierten Zustand,
gekennzeichnet durch
eine großflächige chemische Behandlung der Oberfläche mit einer starken Säure. - Verfahren gemäß einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die elektromagnetische Energie durch eine UV-Lichtquelle, welche Licht mit einer Wellenlänge zwischen 220 und 460 nm emittiert, erzeugt wird. - Verfahren gemäß einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das Oxidationsmittel Wasserstoffperoxid (H2O2) und/oder Sauerstoff (O2) und/oder Ozon (O3) und/oder Kaliumpermanganat (KMnO4) aufweist. - Verfahren gemäß einem der Ansprüche 2 bis 5,
dadurch gekennzeichnet, dass die starke Base eine wässrige Lösung von Kaliumhydroxid (KOH) und/oder Natriumhydroxid (NaOH) ist. - Verfahren gemäß einem der Ansprüche 3 bis 6,
dadurch gekennzeichnet, dass die starke Säure eine wässrige Lösung von Schwefelsäure (H2SO4) und/oder Salzsäure (HCl) und/oder Salpetersäure (HNO3) ist. - Verfahren gemäß einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass neben dem Oxidationsmittel während der zeitlich nachgehenden chemischen Behandlung eine Flüssigkeit mit ionischen Tensiden eingesetzt wird. - Verfahren gemäß einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das Polymermaterial mit Imid-Gruppen PBDI oder PAI ist. - Verfahren gemäß einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der chemischen Behandlung der Oberfläche mit einem Oxidationsmittel zeitlich nachgeordnet die Oberfläche mit einem Polysaccharid in Kontakt gebracht wird. - Druckform (30), insbesondere für den Einsatz als Druckform (30) im Offsetdruck, mit einer Oberfläche zum Drucken, die in einem im wesentlichen unstrukturierten Zustand ein Polymermaterial mit Imid-Gruppen aufweist,
gekennzeichnet durch
hydrophile (34) und hydrophobe (32) Bereiche, welche erhältlich durch ein Verfahren gemäß einem der vorhergehenden Ansprüche sind. - Druckform (30) mit einer Oberfläche gemäß Anspruch 11,
dadurch gekennzeichnet, dass die Oberfläche PBDI oder PAI aufweist. - Druckwerk,
dadurch gekennzeichnet, dass das Druckwerk zum Drucken mit einer Druckform gemäß Anspruch 11 oder 12 versehen ist. - Druckmaschine mit wenigstens einem Anleger, einem Druckwerk und einem Ausleger,
dadurch gekennzeichnet, dass die Druckmaschine wenigstens ein Druckwerk gemäß Anspruch 13 aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02007336T DK1254768T3 (da) | 2001-05-03 | 2002-04-05 | Billeddannelse og sletning fra en trykform af polymermateriale med imidgrupper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10121561 | 2001-05-03 | ||
DE10121561A DE10121561A1 (de) | 2001-05-03 | 2001-05-03 | Bebilderung und Löschung einer Druckform aus Polymermaterial mit Imid-Gruppen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1254768A2 EP1254768A2 (de) | 2002-11-06 |
EP1254768A3 EP1254768A3 (de) | 2003-09-03 |
EP1254768B1 true EP1254768B1 (de) | 2005-02-09 |
Family
ID=7683521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02007336A Expired - Lifetime EP1254768B1 (de) | 2001-05-03 | 2002-04-05 | Bebilderung und Löschung einer Druckform aus Polymermaterial mit Imid-Gruppen |
Country Status (9)
Country | Link |
---|---|
US (1) | US6919165B2 (de) |
EP (1) | EP1254768B1 (de) |
JP (1) | JP4657563B2 (de) |
CN (1) | CN1264676C (de) |
AT (1) | ATE288830T1 (de) |
CZ (1) | CZ300557B6 (de) |
DE (2) | DE10121561A1 (de) |
DK (1) | DK1254768T3 (de) |
HK (1) | HK1053087B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10206938A1 (de) * | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Verfahren und Einrichtung zum Drucken, wobei eine hydrophile Schicht erzeugt und diese strukturiert wird |
US6566039B1 (en) * | 2002-06-04 | 2003-05-20 | Gary Ganghui Teng | Variable data lithographic printing device and method |
US6789478B1 (en) * | 2003-02-28 | 2004-09-14 | Heidelberger Druckmaschinen Ag | Device and method for controlling fluid delivery |
US7879535B2 (en) * | 2004-03-26 | 2011-02-01 | Fujifilm Corporation | Pattern forming method, graft pattern material, conductive pattern forming method and conductive pattern material |
DE102005046863A1 (de) * | 2005-09-30 | 2007-06-14 | Man Roland Druckmaschinen Ag | Druckform |
US7709185B2 (en) | 2006-03-24 | 2010-05-04 | Heidelberger Druckmaschinen Ag | Method for imaging a lithographic printing form |
US20100251914A1 (en) * | 2009-04-01 | 2010-10-07 | Xerox Corporation | Imaging member |
CN112571697A (zh) * | 2020-10-12 | 2021-03-30 | 安徽美阅文化发展股份有限公司 | 一种纸张印刷品深压纹凹凸版的生产工艺 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE103977C (de) | ||||
DD103977A1 (de) * | 1973-04-11 | 1974-02-12 | ||
US4568632A (en) * | 1982-10-07 | 1986-02-04 | International Business Machines Corporation | Patterning of polyimide films with far ultraviolet light |
US4634659A (en) * | 1984-12-19 | 1987-01-06 | Lehigh University | Processing-free planographic printing plate |
US4693958A (en) * | 1985-01-28 | 1987-09-15 | Lehigh University | Lithographic plates and production process therefor |
US4999251A (en) * | 1989-04-03 | 1991-03-12 | General Electric Company | Method for treating polyetherimide substrates and articles obtained therefrom |
US5051312A (en) | 1990-03-29 | 1991-09-24 | E. I. Du Pont De Nemours And Company | Modification of polymer surfaces |
JPH04193956A (ja) * | 1990-11-28 | 1992-07-14 | Sumitomo Metal Mining Co Ltd | ポリイミド樹脂のエッチング法 |
JPH04356387A (ja) * | 1991-05-30 | 1992-12-10 | Shin Etsu Polymer Co Ltd | 付着フラグメントの除去方法 |
US5288519A (en) * | 1992-04-27 | 1994-02-22 | General Electric Company | Method of producing modified polyimide layer having improved adhesion to metal layer thereon |
JP3405473B2 (ja) * | 1994-03-31 | 2003-05-12 | 日立化成工業株式会社 | 耐熱性樹脂のレ−ザ加工法 |
JPH08310148A (ja) * | 1995-05-16 | 1996-11-26 | Nippon Paint Co Ltd | 液体現像処理工程が不要のレーザーダイレクト製版用平版刷版材およびそれを用いる印刷方法 |
DE69710867T2 (de) * | 1997-04-18 | 2002-10-31 | Eastman Kodak Co | Zylinder und Hülsen aus einer Zirconiumdioxidlegierung für lithografische Bilderzeugungs- und Druckverfahren |
DE69805385T2 (de) | 1997-10-24 | 2002-09-12 | Fuji Photo Film Co Ltd | Vorrichtung zur Herstellung einer Druckplatte und Drucker und Drucksystem die diese Vorrichtung verwenden |
DE19826377A1 (de) | 1998-06-12 | 1999-12-16 | Heidelberger Druckmasch Ag | Druckmaschine und Druckverfahren |
US6162578A (en) | 1998-12-18 | 2000-12-19 | Eastman Kodak Company | Imaging member containing heat sensitive hyperbranched polymer and methods of use |
US6410202B1 (en) * | 1999-08-31 | 2002-06-25 | Eastman Kodak Company | Thermal switchable composition and imaging member containing cationic IR dye and methods of imaging and printing |
-
2001
- 2001-05-03 DE DE10121561A patent/DE10121561A1/de not_active Withdrawn
-
2002
- 2002-04-05 AT AT02007336T patent/ATE288830T1/de not_active IP Right Cessation
- 2002-04-05 EP EP02007336A patent/EP1254768B1/de not_active Expired - Lifetime
- 2002-04-05 DE DE50202196T patent/DE50202196D1/de not_active Expired - Lifetime
- 2002-04-05 DK DK02007336T patent/DK1254768T3/da active
- 2002-04-05 CZ CZ20021199A patent/CZ300557B6/cs not_active IP Right Cessation
- 2002-04-15 US US10/122,817 patent/US6919165B2/en not_active Expired - Fee Related
- 2002-04-27 CN CNB02118495XA patent/CN1264676C/zh not_active Expired - Fee Related
- 2002-04-30 JP JP2002127910A patent/JP4657563B2/ja not_active Expired - Fee Related
-
2003
- 2003-07-02 HK HK03104674.2A patent/HK1053087B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1387998A (zh) | 2003-01-01 |
CN1264676C (zh) | 2006-07-19 |
CZ300557B6 (cs) | 2009-06-17 |
CZ20021199A3 (cs) | 2003-01-15 |
DE10121561A1 (de) | 2002-11-07 |
US20020177053A1 (en) | 2002-11-28 |
EP1254768A3 (de) | 2003-09-03 |
EP1254768A2 (de) | 2002-11-06 |
DE50202196D1 (de) | 2005-03-17 |
US6919165B2 (en) | 2005-07-19 |
ATE288830T1 (de) | 2005-02-15 |
HK1053087B (zh) | 2007-01-12 |
JP4657563B2 (ja) | 2011-03-23 |
HK1053087A1 (en) | 2003-10-10 |
JP2003011316A (ja) | 2003-01-15 |
DK1254768T3 (da) | 2005-04-11 |
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