WO2012123533A1 - Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme imprimante - Google Patents

Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme imprimante Download PDF

Info

Publication number
WO2012123533A1
WO2012123533A1 PCT/EP2012/054538 EP2012054538W WO2012123533A1 WO 2012123533 A1 WO2012123533 A1 WO 2012123533A1 EP 2012054538 W EP2012054538 W EP 2012054538W WO 2012123533 A1 WO2012123533 A1 WO 2012123533A1
Authority
WO
WIPO (PCT)
Prior art keywords
printing
layer
cover layer
blanket
channel
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.)
Ceased
Application number
PCT/EP2012/054538
Other languages
German (de)
English (en)
Inventor
Stefan Füllgraf
Markus Gnass
Detlef Roeder
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.)
ContiTech Elastomer Beschichtungen GmbH
Original Assignee
ContiTech Elastomer Beschichtungen GmbH
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
Application filed by ContiTech Elastomer Beschichtungen GmbH filed Critical ContiTech Elastomer Beschichtungen GmbH
Priority to EP12709852.3A priority Critical patent/EP2686168B1/fr
Publication of WO2012123533A1 publication Critical patent/WO2012123533A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/06—Blanket structure facilitating fastening to, or location on, supports

Definitions

  • the invention relates to a system consisting of:
  • a printing cylinder having a gap in the axial direction
  • a blanket or printing form having a cover layer containing a radially outwardly directed print layer and a backing layer, the leading and trailing ends of the base layer being free of the cover layer,
  • the invention further relates to a method for producing such a system.
  • a system of the type mentioned has long been known from the prior art. Such systems are used both in offset printing on blankets and metal blankets as well as in high-pressure forms such. Flexographic printing applications in which the blanket has a comparatively high flexibility or compressibility.
  • An advantage of the system is that the blanket or printing form can first be manufactured as a two-dimensional flat surface with a beginning and an end.
  • the production of such a blanket or such a printing form is possible in a simple way, whereas the production of an endless one
  • Pressure cylinder is expensive.
  • Elastomer is closed.
  • the blanket is first made from a production cylinder. This will be on the
  • Manufacturing cylinder initially spanned a support layer on which the cover layer is attached. Thereafter, the remaining between the peripheral ends of the cover layer channel is closed with a curable elastomer. After curing, the blanket is cut in the region of the elastomer in the axial direction of the production cylinder and removed from the production cylinder.
  • the channel is thus also on the printing cylinder
  • the elastomer can avoid these forces only in that it expands in the circumferential direction of the blanket. This leads to the introduction of undesirable forces in the circumferential direction of the blanket, which with a deterioration of the
  • the invention has for its object to provide a system of the type mentioned, in which no impurities in the region of the top layer of the
  • Blanket or the printing plate can penetrate.
  • the invention is further based on the object to provide a method for producing such a system.
  • the object is achieved according to the characterizing features of claim 1, characterized in that the channel is completely filled with a compressible material.
  • the complete filling of the channel takes place in such a way that the peripheral ends of the blanket or of the printing forme are non-positively connected with one another via the compressible material.
  • the object is further achieved in that after the drawing of the blanket or the printing forme on the printing cylinder, the remaining between the peripheral ends of the outer layer structure channel is completely filled with a compressible material.
  • Pressure layer especially in the channel, no impurities can penetrate. This is due to the fact that the channel is completely filled with a compressible material which frictionally connects the peripheral ends of the cover layer. Thus, neither in the compressible material, nor at the transitions from the compressible material to the cover layer are scratches in which contaminants can penetrate.
  • Another advantage of the invention is that the system can be easily manufactured. In particular, it is not necessary to manufacture the blanket or the printing form on a separate production cylinder.
  • Suitable starting materials are preferably elastomeric materials such as EPDM, NBR, modified epoxy resins or silicone rubbers or elastomers based on Polyurethane or polyurea.
  • thermoplastics such as PE or PP can be used if they are compliant at the temperature of the application.
  • blowing agents both chemical and physical blowing agents can be used. Physical blowing agents are understood as meaning, for example, compressed gases (eg air, CO 2 or CFC) or volatile hydrocarbons. Azodicarbonamides, sulfonylhydrazides or hydrogencarbonates can be used as chemical blowing agents.
  • a combination of polyuritan or polyureas or a combination of polyurethane and polyureas with microspheres is used.
  • the color of the material is preferably black, e.g. by the addition of carbon black, so that it can be lasered.
  • a print template can be created on a printing form.
  • the compressible material consists of a chemically curing material, are embedded in the microspheres.
  • a chemically curing material is selected which requires a maximum of 15 minutes to cure, so closing the channel does not take too much time.
  • the compressibility of the material is brought about by means of embedded microspheres, which enclose air.
  • the cover layer on a compressible intermediate layer wherein in the chemically curing material so many microspheres are embedded, that the compressibility of the intermediate layer corresponds to the compressibility of the chemically curing material.
  • the density of the cured material with microspheres is 20% to 40% lower than the density of the cured material without microspheres.
  • Comprising conventional printing form is formed homogeneously over the entire circumference of the blanket or the printing plate. This ensures that the printing blanket or printing form behaves homogeneously in all directions during a printing process.
  • the chemically curing material is an epoxy resin, which is composed of an epoxy resin and a curing agent, being used as the epoxy polymer blocks, which carry so-called epoxide groups at the end.
  • the reaction products of bisphenol-A and epichlorohydrin can be used, which form a stable thermoset after mixing with the curing agent containing amino or mercapto.
  • the support layer is formed as a metal foil.
  • the compressible material is formed as a two-component epoxy resin, wherein at least one component of the epoxy resin contains microspheres.
  • the advantage of this development is the fact that two-component epoxy resins cure quickly, so that the channel between the peripheral ends of the cover layer can be quickly closed.
  • the edges of the peripheral ends of the cover layer are sealed prior to introduction of the compressible material with an elastomer.
  • the advantage of this development is the fact that the edges of the cover layer are completely sealed with the elastomer and thus the compressible material needs to bind exclusively to a single substance, namely the elastomer.
  • the elastomer may be selected to provide a particularly strong bond between the compressible material and the elastomer. This leads to a particularly strong frictional connection between the peripheral ends of the cover layer.
  • Fig. 1 shows a system consisting of a printing cylinder and a blanket or a printing plate in cross section
  • Fig. 2 shows a system consisting of a printing cylinder and a blanket or a printing plate in plan view.
  • Fig. 1 shows a system 2, consisting of a printing cylinder 4 and a blanket 6 or a printing plate 6 in cross section.
  • the printing cylinder 4 has a gap 8 which extends in the axial direction of the printing cylinder 4.
  • the printing blanket 6 or the printing forme 6 has a cover layer 10, which in the exemplary embodiment shown consists of a printing layer 12 directed radially outward, a fabric layer 14 and a compressible layer 16.
  • the topcoat may optionally contain additional layers.
  • the cover layer 10 is connected to a support layer 18, which is preferably formed as a metal foil.
  • the leading end 20 and the trailing end 22 of the support layer 18 are free of the cover layer 10.
  • Compressor 6 is clamped in a manner known per se in the axially extending gap 8 of the impression cylinder 4. After clamping the blanket 6 and the
  • Printing form 6 on the printing cylinder 4 remains between the peripheral ends 24 and 26 of the cover layer 10, a channel 28 which extends in the axial direction of the printing cylinder 4.
  • the channel 28 is completely filled with a compressible material 30.
  • the filling of the channel 28 by means of the compressible material 30 is such that filling of the channel 28 in the radial direction is as thick as the cover layer 10 and the radially outward surface of the compressible material 30 with the radially outwardly facing surface of the print layer 12 forms a plane, as it is also shown in Fig. 1.
  • the blanket 6 and the printing plate 6 then has the same thickness everywhere. This can be achieved, for example, in that the channel 28 is first filled to the extent that the compressible material 30 is beyond the pressure layer 12 and the excess compressible material 30 is abraded.
  • the compressible material 30 consists of a chemically curing material in which microspheres are embedded.
  • the chemically curing material 30 is a two-part epoxy resin. In the chemically curing material so many microspheres are embedded that the compressibility of the material 30 of the
  • Compressibility of the compressible layer 16 corresponds. It is possible to seal the edges of the circumferential ends 24, 26 of the cover layer 10 of the blanket 6 and the printing plate 6 with an elastomer prior to introducing the compressible material 30 into the gap 8. For a better connection of the compressible material to the edges of the peripheral ends 24, 26 is achieved.
  • Fig. 2 shows the system 2 with the gap 8, which is filled with the compressible material 30, in plan view.

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

L'invention concerne un système (2) composé d'un cylindre d'impression (4) comportant une fente (8) dans la direction axiale et d'un blanchet (6) ou d'une forme imprimante (6) comprenant une couche de protection (10), qui contient une couche d'impression (12) orientée radialement vers l'extérieur, et une couche de base (18), l'extrémité avant (20) et l'extrémité arrière (22) de la couche de base (18) étant exemptes de couche de protection, l'extrémité avant (20) et l'extrémité arrière (22) de la couche de base (18) étant prises dans la fente (8) du cylindre d'impression (4), de sorte qu'un canal (28) s'étendant dans la direction axiale du cylindre d'impression (4) soit maintenu entre les extrémités périphériques (24, 26) de la couche de protection (10). Selon l'invention, le canal (28) est entièrement rempli d'un matériau compressible.
PCT/EP2012/054538 2011-03-16 2012-03-15 Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme imprimante Ceased WO2012123533A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12709852.3A EP2686168B1 (fr) 2011-03-16 2012-03-15 Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme d'impression et procédé de fabrication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110001315 DE102011001315A1 (de) 2011-03-16 2011-03-16 System, bestehend aus einem Drucktuchzylinder und einem Drucktuch
DE102011001315.6 2011-03-16

Publications (1)

Publication Number Publication Date
WO2012123533A1 true WO2012123533A1 (fr) 2012-09-20

Family

ID=45540874

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2012/050943 Ceased WO2012123149A2 (fr) 2011-03-16 2012-01-23 Système composé d'un cylindre porte-blanchet et d'un blanchet
PCT/EP2012/054538 Ceased WO2012123533A1 (fr) 2011-03-16 2012-03-15 Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme imprimante

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/050943 Ceased WO2012123149A2 (fr) 2011-03-16 2012-01-23 Système composé d'un cylindre porte-blanchet et d'un blanchet

Country Status (3)

Country Link
EP (1) EP2686168B1 (fr)
DE (1) DE102011001315A1 (fr)
WO (2) WO2012123149A2 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118866A2 (fr) * 1983-03-12 1984-09-19 BASF Aktiengesellschaft Procédé et dispositif d'obturation de la fente entre les extrémités d'un cliché d'impression en creux fixé sur un cylindre de plaque
EP0406585A2 (fr) * 1989-06-20 1991-01-09 BASF Aktiengesellschaft Procédé pour obturer et/ou sceller les ouvertures, creux ou interstices de plaques d'impression fixées sur les cylindres de forme
US20040031407A1 (en) * 2002-02-14 2004-02-19 Gianpierro Invernizzi Multi-layered gapped cylindrical printing blanket
DE10307382A1 (de) 2002-12-16 2004-07-08 Koenig & Bauer Ag Drucktucheinheit für einen Drucktuchzylinder einer Rotationsdruckmaschine und ein Verfahren zur Herstellung einer Drucktucheinheit für einen Drucktuchzylinder
WO2010061413A1 (fr) * 2008-11-03 2010-06-03 Trelleborg Engineered Systems Italy S.P.A. Élément de finition d’un revêtement pour cylindre typographique et son procédé de fabrication et de finition, revêtement d’un cylindre typographique et son procédé de fabrication, cylindre typographique comprenant ce revêtement et procédé d’application de ce revêtement au cylindre typographique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749298A (en) * 1997-06-10 1998-05-12 Reeves Brothers, Inc. Arrangement for securing a printing blanket to a cylinder
JP3878622B2 (ja) * 2004-05-19 2007-02-07 株式会社東京機械製作所 ブランケット胴の埋め部材

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118866A2 (fr) * 1983-03-12 1984-09-19 BASF Aktiengesellschaft Procédé et dispositif d'obturation de la fente entre les extrémités d'un cliché d'impression en creux fixé sur un cylindre de plaque
EP0406585A2 (fr) * 1989-06-20 1991-01-09 BASF Aktiengesellschaft Procédé pour obturer et/ou sceller les ouvertures, creux ou interstices de plaques d'impression fixées sur les cylindres de forme
US20040031407A1 (en) * 2002-02-14 2004-02-19 Gianpierro Invernizzi Multi-layered gapped cylindrical printing blanket
DE10307382A1 (de) 2002-12-16 2004-07-08 Koenig & Bauer Ag Drucktucheinheit für einen Drucktuchzylinder einer Rotationsdruckmaschine und ein Verfahren zur Herstellung einer Drucktucheinheit für einen Drucktuchzylinder
WO2010061413A1 (fr) * 2008-11-03 2010-06-03 Trelleborg Engineered Systems Italy S.P.A. Élément de finition d’un revêtement pour cylindre typographique et son procédé de fabrication et de finition, revêtement d’un cylindre typographique et son procédé de fabrication, cylindre typographique comprenant ce revêtement et procédé d’application de ce revêtement au cylindre typographique

Also Published As

Publication number Publication date
EP2686168B1 (fr) 2018-11-21
EP2686168A1 (fr) 2014-01-22
DE102011001315A1 (de) 2012-09-20
WO2012123149A2 (fr) 2012-09-20
WO2012123149A3 (fr) 2012-12-20

Similar Documents

Publication Publication Date Title
EP3583341B1 (fr) Collier de serrage
DE102011011103A1 (de) Dichtung
DE102013018243A1 (de) Anordnung zur Ankopplung eines Werkstückes und Aufspanneinrichtung
DE69512769T2 (de) Drucktuch mit variabler kompressibler schicht
EP0797029B1 (fr) Procédé pour appliquer une surélévation à une plaque métallique d'un joint de culasse et joint de culasse
DE102011077463B4 (de) RTM-Werkzeug mit expandierbarer Dichtung zur Herstellung von faserverstärkten Kunststoffformteilen
EP3183110B1 (fr) Procédé de production d'un joint sur un élément et outil de façonnage destiné à être utilisé dans un procédé de ce type
EP2686168B1 (fr) Système composé d'un cylindre d'impression et d'un blanchet ou d'une forme d'impression et procédé de fabrication
EP1617112B1 (fr) Joint d'étanchéité comprenant un support et sa méthode de fabrication
WO2005047740A1 (fr) Joint
DE3409952A1 (de) Weichstoffflachdichtung, insbesondere zylinderkopfdichtung fuer verbrennungskraftmaschinen
DE2423062C2 (de) Verfahren zum Reparieren und Runderneuern von Fahrzeugreifen
EP1717900B1 (fr) Méthode pour fabriquer un radome d'antenne pour sous-marines
WO2006122762A2 (fr) Cylindre d'impression, et procede de production d'un cylindre d'impression conçu en particulier pour l'impression flexographique
DE3134015C2 (de) Flachdichtung sowie Verfahren zu ihrer Herstellung
WO2016058714A1 (fr) Douille de pression et procédé de fabrication d'une douille de pression
DE102012202908A1 (de) Vorrichtung zum Abdichten eines Ringraumes zwischen einem Medienrohr/Kabel und einer Kernbohrung/Schutzrohr
WO2004063604A1 (fr) Joint de culasse
EP2253471A1 (fr) Cylindre de pression doté d'un tissu en caoutchouc pour une presse rotative offset à rouleaux
DE102021126786A1 (de) Stabilisatorlager
DE102012101035B4 (de) Dichtung
WO2004054807A1 (fr) Ensemble blanchet pour cylindre a blanchet d'une machine d'imprimerie et son procede de production
DE69620092T2 (de) Eine Flachdichtung
DE10307383B4 (de) Verfahren zur Herstellung einer Drucktucheinheit
DE10242682A1 (de) Rundfilterelement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12709852

Country of ref document: EP

Kind code of ref document: A1