EP1208997B1 - Drucktuch für Offset-Druck-Anwendungen - Google Patents

Drucktuch für Offset-Druck-Anwendungen Download PDF

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Publication number
EP1208997B1
EP1208997B1 EP00125775A EP00125775A EP1208997B1 EP 1208997 B1 EP1208997 B1 EP 1208997B1 EP 00125775 A EP00125775 A EP 00125775A EP 00125775 A EP00125775 A EP 00125775A EP 1208997 B1 EP1208997 B1 EP 1208997B1
Authority
EP
European Patent Office
Prior art keywords
layer
printing
thickness
compressible
intermediate 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.)
Expired - Lifetime
Application number
EP00125775A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1208997A1 (de
Inventor
Joachim Herrmann
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 EP00125775A priority Critical patent/EP1208997B1/de
Priority to DE50010411T priority patent/DE50010411D1/de
Priority to AT00125775T priority patent/ATE296207T1/de
Priority to JP2001351114A priority patent/JP2002166678A/ja
Priority to US09/992,014 priority patent/US20020062753A1/en
Publication of EP1208997A1 publication Critical patent/EP1208997A1/de
Application granted granted Critical
Publication of EP1208997B1 publication Critical patent/EP1208997B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/02—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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/04—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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/06—Backcoats; Back layers; Bottom 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds

Definitions

  • the invention relates to a blanket for offset printing applications, for the Use for printing surface-structured and deformation-endangered printing materials according to the preamble of Patent claim 1.
  • Printing blankets have always been special applications in the past been adapted. Difficulties arise whenever the on the blanket acting, starting from the printing cylinder reaction force in Time course is not steady, which is regular when printing structured Printing material is the case. Furthermore, there are printing materials such as Cardboard, corrugated cardboard or the like, in connection with which Printing forces occur, leading to shape changes of these printing materials lead, whereby the printed result, for example, in terms of a register pressure is negatively affected over the entire surface.
  • a blanket is made of an elastic, Compressible pressure element with closed-cell foam described.
  • the structure of such a blanket leaves a suitability for the Lithography printing recognize, however, it is for applications for printing of textured surfaces can not be used if high quality requirements to be fulfilled.
  • US-A-3 983 287 discloses a blanket for offset printing applications a base layer assigned to the impression cylinder, a compressible, Gas-containing intermediate layer and with an external, discloses the outer layer facing the printing material.
  • the intermediate layer is formed as an elastomer layer and directly using a Adhesive associated with the outer layer, the thickness of which compared to Intermediate layer is low.
  • the blanket comprises a base layer, a compressible, Gas inclusions intermediate layer and an outer layer with the printing material comes into contact.
  • the invention has for its object to provide a blanket for an improved To provide offset printing of printing materials during the Printing process tend to change shape.
  • the object is achieved in that in a blanket according to the preamble of claim 1, the compressible intermediate layer is formed closed-pore, that parameters such as porosity and thickness of the closed-pore intermediate layer are set such that upon exposure a test pressure of 1350 kPa a thickness reduction of 20 - 50% of Starting thickness of the blanket is achieved that the ratio of the thickness of the Outer layer to the thickness of the compressible intermediate layer 1: 2.5 to 1: 7 is.
  • the invention has the advantage that due to a comparatively highly elastic deformable outer layer and one during the Printing process in the compressed state elastically yielding Interlayer the relevant surface areas of the blanket with the Printed material come in defined, large-area contact, without the Printing material to expose forces that lead to a non-reversible deformation of the printing material would lead. Local bumps of the Printed material lead, if at all, only to small differences in the Printing pressure. This ensures a uniform print result.
  • the thickness of the blanket can be greater than 2.0 mm. Is that lying Thickness of the blanket in the range of 2.5 - 3.0 mm, are particularly good Print results achievable.
  • the pore content of Compressible intermediate layer chosen such that under the action of a Test pressure of 1350 kPa a reduction in the thickness of the blanket to 0.45-0.90 mm. Another improvement in print quality is achievable with a porosity in the intermediate layer, at a test pressure of 1350 kPa to a reduction of the thickness of the blanket by 0,55 - 0.70 mm leads.
  • polyurethanes or other elastomers are used for the compressible intermediate layer NBR mixtures.
  • the base layer of the blanket expediently contains a Reinforcements made of cotton. Preference is given to the reinforcements, the may also consist of other materials, in the form of two layers of fabric brought in.
  • the thickness of the compressible Interlayer 1 - 2 mm is the thickness of the compressible Interlayer 1 - 2 mm.
  • the outer layer expediently a Shore hardness less than 55 ShA.
  • FIG. 1 shows a printing blanket for printing corrugated cardboard and the like Printing materials in section, reducing the layer structure of the blanket becomes recognizable.
  • the blanket consists essentially of a base layer 1, a compressible intermediate layer 2 and facing the printing material Cover rubber layer 3.
  • a strength member 4 in shape a two-ply cotton fabric introduced. It can, however, too other reinforcements such as foils, sheets and fabrics from others Materials and knitted fabric to be part of the base layer 1.
  • the compressible intermediate layer 2 contains gaseous, self-contained pores 5, which has a sufficiently high Ensure compressibility of the intermediate layer 2.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
EP00125775A 2000-11-24 2000-11-24 Drucktuch für Offset-Druck-Anwendungen Expired - Lifetime EP1208997B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00125775A EP1208997B1 (de) 2000-11-24 2000-11-24 Drucktuch für Offset-Druck-Anwendungen
DE50010411T DE50010411D1 (de) 2000-11-24 2000-11-24 Drucktuch für Offset-Druck-Anwendungen
AT00125775T ATE296207T1 (de) 2000-11-24 2000-11-24 Drucktuch für offset-druck-anwendungen
JP2001351114A JP2002166678A (ja) 2000-11-24 2001-11-16 オフセット印刷に使用するためのブランケット
US09/992,014 US20020062753A1 (en) 2000-11-24 2001-11-26 Printing blanket for offset printing applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00125775A EP1208997B1 (de) 2000-11-24 2000-11-24 Drucktuch für Offset-Druck-Anwendungen

Publications (2)

Publication Number Publication Date
EP1208997A1 EP1208997A1 (de) 2002-05-29
EP1208997B1 true EP1208997B1 (de) 2005-05-25

Family

ID=8170475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125775A Expired - Lifetime EP1208997B1 (de) 2000-11-24 2000-11-24 Drucktuch für Offset-Druck-Anwendungen

Country Status (5)

Country Link
US (1) US20020062753A1 (ja)
EP (1) EP1208997B1 (ja)
JP (1) JP2002166678A (ja)
AT (1) ATE296207T1 (ja)
DE (1) DE50010411D1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237205B4 (de) * 2002-04-18 2009-02-12 Koenig & Bauer Aktiengesellschaft Aufzug auf einer Walze, Anordnungen der Walze zu einer zweiten Walze sowie Druckwerke einer Druckmaschine mit der Walze
DE502004000383D1 (de) 2003-10-21 2006-05-11 Koenig & Bauer Ag Aufzüge auf einer Walze sowie Druckwerke einer Druckmaschine mit der Walze
US7617773B2 (en) * 2006-06-01 2009-11-17 Goss International Americas, Inc. Blanket size verification using drive torque feedback
DE102009043332A1 (de) * 2009-09-28 2011-03-31 Optipack Gmbh Vorrichtung und Verfahren zum Übertragen einer Beschichtungsmasse
ITMI20131918A1 (it) * 2013-11-19 2015-05-20 Trelleborg Coated Systems Italy S P A Telo gommato per stampa per un cilindro di stampa di una macchina per stampa, cilindro di stampa avente detto telo gommato per stampa e macchina per stampa avente detto cilindro di stampa

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983287A (en) * 1971-11-22 1976-09-28 Minnesota Mining And Manufacturing Company Compressible printing blanket
JP2747198B2 (ja) * 1993-06-07 1998-05-06 住友ゴム工業株式会社 印刷用オフセットブランケット

Also Published As

Publication number Publication date
ATE296207T1 (de) 2005-06-15
DE50010411D1 (de) 2005-06-30
US20020062753A1 (en) 2002-05-30
JP2002166678A (ja) 2002-06-11
EP1208997A1 (de) 2002-05-29

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