EP1340616A2 - Surface pour pièces de machine dans une machine d'impression - Google Patents

Surface pour pièces de machine dans une machine d'impression Download PDF

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Publication number
EP1340616A2
EP1340616A2 EP03002783A EP03002783A EP1340616A2 EP 1340616 A2 EP1340616 A2 EP 1340616A2 EP 03002783 A EP03002783 A EP 03002783A EP 03002783 A EP03002783 A EP 03002783A EP 1340616 A2 EP1340616 A2 EP 1340616A2
Authority
EP
European Patent Office
Prior art keywords
surface according
coating
carrier layer
pores
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03002783A
Other languages
German (de)
English (en)
Other versions
EP1340616A3 (fr
EP1340616B1 (fr
Inventor
Arndt Jentzsch
Horst Böttcher
Helfried Haufe
Boris Mahlting
Holger Richter
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1340616A2 publication Critical patent/EP1340616A2/fr
Publication of EP1340616A3 publication Critical patent/EP1340616A3/fr
Application granted granted Critical
Publication of EP1340616B1 publication Critical patent/EP1340616B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/04—Intermediate layers
    • 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
    • B41N7/00—Shells for rollers of printing machines

Definitions

  • the invention relates to a surface for machine parts of a printing press, in particular sheet guiding elements or sheet-guiding cylinders, which come into contact with printing ink and can thereby become dirty.
  • the surface is used for example on sheet guiding cylinders including impression cylinders, transfer cylinders, turning or storage cylinders, as well as on all types of sheet guiding devices.
  • an ink-repellent coating for an element contacting a printing material is shown.
  • the coating consists of titanium oxide or zinc oxide and is photosensitive.
  • the coated elements are irradiated once or repeatedly with UV light in order to bring about the color-repellent property of the titanium oxide or zinc oxide and to refresh it from time to time.
  • the disadvantage of this solution is that the ink acceptance behavior of the coated elements is not constant over time and further time and, if appropriate, mechanical engineering expenditure is also required to reactivate the chemical properties.
  • machine parts on sheet-fed printing machines are known can come into contact with paint or dirt, with a microstructured one To provide surface self-cleaning coating.
  • DE 199 48 311 A1 describes the use of a coating composition low surface energy for parts of a printing machine.
  • the coating is for the material with the ink on the way from the ink container to the material to be printed on Touching surfaces of anilox rollers or ink hoses are provided.
  • the surfaces coated in this way initially show good color-repellent properties, however, wear out quickly.
  • the object of the invention results from the disadvantages mentioned, a surface of the to create the type mentioned above, which accepts little or no ink, wear-resistant and that can be regenerated.
  • the invention is based on the knowledge that the durability of the outermost coating (functional coating) applied to the components of a printing press, which protects it from soiling with printing ink, depends crucially on the anchoring of the coating in the layer below.
  • suitably shaped pores are provided, into which the functional coating, which is applied in liquid form, can penetrate before it is cured by drying and subsequent thermal aftertreatment. It is important here that the size of the pores is set such that when the functional coating is applied repeatedly, sufficient pore volume is available to anchor the additional functional coatings applied after the first. This ensures that the surface can be regenerated by renewed coating.
  • pores with irregular diameters has proven to be advantageous, ie both the diameter from pore to pore and the diameter of the individual pores fluctuate in a certain range.
  • a surface with particularly stable properties can be produced if the alignment of the pores is also irregular and the pores in particular do not run radially to the cylinder axis.
  • a pore structure that meets these requirements can be produced in a simple manner by thermal spraying.
  • the surface according to the invention is formed on the circumference of a sheet-guiding cylinder such as the impression cylinder, transfer cylinder, turning or storage cylinder, but can also be provided on any other machine part that comes into contact with paint and can thereby become dirty.
  • a carrier layer 1 produced by the plasma coating process is applied to the cast base body of the cylinder. This is produced using metallic or metal oxide powders, which preferably have grain sizes between 5 and 50 ⁇ m.
  • An adhesion promoter layer can be provided between the carrier layer 1 and the base body.
  • the targeted setting of the parameters in plasma spraying results in random distribution of unaligned pores 2 in the carrier layer 1, which vary in size and have diameters of 5 to 10 ⁇ m. Depending on the parameters of the coating, microcracks can also occur.
  • the carrier layer 1 can be structured out or smoothed by mechanical surface treatment.
  • a functional coating 5, 6 is provided on the carrier layer 1.
  • the functional coating 5, 6 can consist of one or more layers. she is executed in such a way that a height difference is obtained between profile height 3 and profile depth 4 remains.
  • the total layer thickness of the functional coating 5, 6 is smaller than that Diameter of the pores 2 of the carrier material, i.e. which is the total thickness of the Areas of the functional coating 5, 6 that always lie opposite the pores 2 is smaller than the pore diameter.
  • Modified inorganic nanoparticles are used as coating material, which are dissolved in aqueous, alcoholic or mixed solvents and modified by hydrolysis products of long-chain trialkoxysilanes R-Si (OR) 3 and / or dialkoxysilanes R-Si (OR) 2 , where R 4 to Contains 18 carbon atoms in alkyl, aralkyl, or fluoroalkyl radicals.
  • R-Si (OR) 3 and / or dialkoxysilanes R-Si (OR) 2 where R 4 to Contains 18 carbon atoms in alkyl, aralkyl, or fluoroalkyl radicals.
  • the use of polysiloxanes with terminal alkyl, aryl, hydroxyalkyl, epoxy or polyether radicals can be provided for the modification of the inorganic nanosols.
  • the nanoparticles, whose diameter is less than 10 nm, are part of a liquid dispersion.
  • the coating can be produced in a simple manner using the sol-gel process.
  • the nanosol produced is applied by known coating methods, such as spray, brush, dip, spin or dip coating, with a defined coating thickness.
  • the coating solution is distributed uniformly on the surface of the carrier layer 1 and also penetrates into the interior of the pores 2 in the carrier layer 1, but without clogging the pores 2.
  • the nanoparticles are oriented and the sol gels.
  • the solvent is subsequently removed from the layer by drying.
  • the dried layer can then be fixed by tempering at temperatures between 100 and 400 ° C.
  • the functional coating 5, 6 produced in this way is oleophobic and counteracts contamination with oil-based printing ink.
  • the relative resistance of the functional coating 5, 6 results from the fact that parts of the coating are anchored in the pores 2 of the carrier layer 1. If the functional coating 5, 6 wears out due to mechanical wear, the coating process can be repeated. The pores 2 also offer sufficient points of attack for anchoring the functional coating 5, 6 for further coating processes. This becomes clear in FIG. 2, in which a second layer 6 is superimposed on a first layer of the functional coating 5. This makes it possible to regenerate the surface and thus its properties.
  • the surface of the machine part can be structured his.
  • the structure is adjusted in such a way that it can also be applied by applying the carrier material is not leveled.
  • the functional coating 5, 6 is designed with modified compounds of silicon oxide with aluminum oxide as nanosol, which is modified using a 10% solution of fluoroalkyl-functionalized polysiloxanes, the surface also has poor wettability with respect to water. With the aforementioned embodiment, the contamination of the surfaces by the accumulation of dirt particles dissolved in water can also be counteracted.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP20030002783 2002-03-01 2003-02-07 Surface de pièces de machine d' une machine d'impression Expired - Fee Related EP1340616B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002109297 DE10209297A1 (de) 2002-03-01 2002-03-01 Oberfläche für Maschinenteile einer Druckmaschine
DE10209297 2002-03-01

Publications (3)

Publication Number Publication Date
EP1340616A2 true EP1340616A2 (fr) 2003-09-03
EP1340616A3 EP1340616A3 (fr) 2008-03-05
EP1340616B1 EP1340616B1 (fr) 2010-10-20

Family

ID=27675176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030002783 Expired - Fee Related EP1340616B1 (fr) 2002-03-01 2003-02-07 Surface de pièces de machine d' une machine d'impression

Country Status (2)

Country Link
EP (1) EP1340616B1 (fr)
DE (2) DE10209297A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7651560B2 (en) * 2004-12-20 2010-01-26 Koenig & Bauer Ag Abhesive layer of cross-linked nanoparticles
US20100092842A1 (en) * 2007-02-09 2010-04-15 The University Of British Columbia Densified ceramic materials and related methods
US8153834B2 (en) 2007-12-05 2012-04-10 E.I. Dupont De Nemours And Company Surface modified inorganic particles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028741B4 (de) * 2006-07-12 2017-09-07 Heidelberger Druckmaschinen Ag Verfahren zum Herstellen eines Bedruckstoff kontaktierenden Elements
DE102011010718B4 (de) 2010-03-12 2022-07-07 Heidelberger Druckmaschinen Ag Verfahren zum Herstellen einer strukturierten, Bedruckstoff kontaktierenden Oberfläche

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258873B (fr) 1963-05-27 1974-01-24
DE19850968A1 (de) 1998-11-05 2000-05-25 Roland Man Druckmasch Verschleißhemmende, farbabweisende Beschichtung, insbesondere von Druckmaschinenkomponenten
DE19914136A1 (de) 1999-03-27 2000-09-28 Koenig & Bauer Ag Oberfläche für Maschinenteile in Druckmaschinen
DE19948311A1 (de) 1999-10-06 2001-04-12 Nanogate Gmbh Verfahren, Vorrichtung sowie Stoffe
DE10115876A1 (de) 2000-04-27 2001-10-31 Heidelberger Druckmasch Ag Farbabweisende Beschichtung für ein einen Bedruckstoff kontaktierendes Element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185766A (en) * 1938-01-03 1940-01-02 Carborundum Co Printing press cylinder
CH620863A5 (en) * 1977-06-24 1980-12-31 Von Roll Ag Metal foil with sheet-bearing surface
DD136481A1 (de) * 1978-05-26 1979-07-11 Heiner Fink Ein-oder mehrschichtiger mantel fuer zylinder
DD136480A1 (de) * 1978-05-26 1979-07-11 Herbert Patzelt Ein-oder mehrschichtiger mantel fuer bogenfuehrende zylinder
DE3422443C2 (de) * 1984-06-16 1989-11-23 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Folie für bogenführende Zylinder und Trommeln in Rotations-Offsetdruckmaschinen
DE19933438B4 (de) * 1999-07-16 2004-07-08 Man Roland Druckmaschinen Ag Druckmaschine mit nicht am Druck-/Lackierprozess beteiligten Druck-/Lackwerken
DE20107182U1 (de) * 2001-04-26 2001-06-28 Roland Man Druckmasch Bogenführungszylinder in einer Mehrfarben-Druckmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258873B (fr) 1963-05-27 1974-01-24
DE19850968A1 (de) 1998-11-05 2000-05-25 Roland Man Druckmasch Verschleißhemmende, farbabweisende Beschichtung, insbesondere von Druckmaschinenkomponenten
DE19914136A1 (de) 1999-03-27 2000-09-28 Koenig & Bauer Ag Oberfläche für Maschinenteile in Druckmaschinen
DE19948311A1 (de) 1999-10-06 2001-04-12 Nanogate Gmbh Verfahren, Vorrichtung sowie Stoffe
DE10115876A1 (de) 2000-04-27 2001-10-31 Heidelberger Druckmasch Ag Farbabweisende Beschichtung für ein einen Bedruckstoff kontaktierendes Element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7651560B2 (en) * 2004-12-20 2010-01-26 Koenig & Bauer Ag Abhesive layer of cross-linked nanoparticles
US20100092842A1 (en) * 2007-02-09 2010-04-15 The University Of British Columbia Densified ceramic materials and related methods
US8153834B2 (en) 2007-12-05 2012-04-10 E.I. Dupont De Nemours And Company Surface modified inorganic particles

Also Published As

Publication number Publication date
DE50313196D1 (de) 2010-12-02
DE10209297A1 (de) 2003-09-18
EP1340616A3 (fr) 2008-03-05
EP1340616B1 (fr) 2010-10-20

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