EP2401151B1 - Blanchet d'impression tubulaire radiallement expansible et procédé de sa production - Google Patents

Blanchet d'impression tubulaire radiallement expansible et procédé de sa production Download PDF

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Publication number
EP2401151B1
EP2401151B1 EP20090774642 EP09774642A EP2401151B1 EP 2401151 B1 EP2401151 B1 EP 2401151B1 EP 20090774642 EP20090774642 EP 20090774642 EP 09774642 A EP09774642 A EP 09774642A EP 2401151 B1 EP2401151 B1 EP 2401151B1
Authority
EP
European Patent Office
Prior art keywords
blanket
layer
cylinder
designed
warp threads
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.)
Not-in-force
Application number
EP20090774642
Other languages
German (de)
English (en)
Other versions
EP2401151A2 (fr
Inventor
Christian Sameit
Eduard Hoffmann
Thomas Kandlbinder
Georg Schmid
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.)
Manroland Web Systems GmbH
Original Assignee
Manroland Web Systems 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 Manroland Web Systems GmbH filed Critical Manroland Web Systems GmbH
Publication of EP2401151A2 publication Critical patent/EP2401151A2/fr
Application granted granted Critical
Publication of EP2401151B1 publication Critical patent/EP2401151B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/193—Transfer cylinders; Offset cylinders
    • 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
    • B41F30/02—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to impression 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
    • 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
    • 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
    • B41N2210/10—Location or type of the layers in multi-layer blankets or like coverings characterised by inorganic compounds, e.g. pigments
    • 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 radially expansible, sleeve-shaped blanket and method for producing a blanket, wherein the blanket has at least one inner carrier layer, an intermediate layer formed as a fabric layer and an outer cover layer.
  • Blankets are well known in the art. For example, reference is made to the following publications: US 3,652,376 . US 3,700,541 . US 4,042,743 . US 4,770,928 . GB 2,016,373 . EP 0 452 184 and US 6,386,100 ,
  • EP 1 268 218 B1 describes a type of printing blankets other than the present invention, namely a flat image transfer blanket having an inextensible base layer in the form of a flat metal plate which can be clamped by its ends in a clamping gap of a blanket cylinder.
  • Such printing blankets have significantly different material properties due to their inextricability than radially expandable sleeve-shaped blankets and they also have a significantly different spatial-geometric structure.
  • the EP 1 268 218 B1 at column 4 states that it is impractical to mount a standard tissue blanket on an undetachable metal base liner because the resulting blanket is extremely difficult to handle and tense.
  • Fabric layers are produced in that - usually arranged parallel to each other - warp threads in the longitudinal direction of the fabric web to be produced stretched or otherwise provided and then - usually after mutual spatial offset of at least a portion of the warp threads, usually in one Direction perpendicular to the fabric web - wefts are inserted between the warp threads to make the interweaving of the fabric.
  • a tissue layer is usually automatic aligned so that the warp threads are arranged in the longitudinal direction of the material web and the weft threads in a direction transverse to the material web.
  • Warp threads and weft threads have different material properties.
  • the warp threads are due to the assumed higher mechanical load of fabrics usually reinforced suitably to accommodate these higher mechanical loads can. Tissues are thus inhomogeneous with respect to their material properties, ie have different material properties in the direction of the warp threads than in the direction of the weft threads.
  • a blanket web already has the desired extent which is required for the expansion of a blanket in the axial direction of a blanket cylinder which is to be equipped with the blanket. Therefore, sections of the printing blanket material web are cut off so far whose length in the longitudinal direction of the material web corresponds to the circumferential length of the blanket cylinder to be loaded, so that then automatically the warp threads of the fabric layer of the blanket in the circumferential direction of the blanket cylinder are arranged on the blanket cylinder. This is in the FIGS. 1, 2 and 8th shown.
  • a first subject of the invention relates to a blanket for attachment to a blanket cylinder, at least comprising an inner carrier layer, a first intermediate layer formed as a fabric layer and an outer cover layer, wherein the fabric layer includes warp threads and weft threads.
  • the blanket can be mounted on the blanket cylinder such that the warp threads extend in the axial direction of the blanket cylinder and the weft threads in the circumferential direction of the blanket cylinder.
  • the blanket is formed as a sleeve-shaped blanket, which can be pushed in the form of a cylinder over the blanket cylinder.
  • the blanket is radially stretchable, so that for pushing the blanket on the blanket cylinder, this blanket can be expanded by radial expansion and then shrunk onto the blanket cylinder by easing the radial expansion.
  • the warp threads are arranged in the axial direction of the blanket cylinder and the weft yarns in the circumferential direction, optimized properties of the blanket with respect to web transport and register capability can be achieved.
  • the warp threads are usually suitably reinforced due to the assumed higher mechanical load on fabrics in order to be able to absorb these higher mechanical loads.
  • the arrangement of the weft threads - which have a lower mechanical stability - in the circumferential direction of the cylinder promotes a radial extensibility of sleeve-shaped blankets.
  • the extent of the fabric layer or the entire blanket is greater in the direction of the warp threads than in the direction of the weft threads.
  • such a blanket may preferably have an extent greater than 2.5 m in the direction of the warp threads. This is made possible by the increased mechanical stability of the warp threads.
  • the carrier layer is formed as a metal layer or plastic layer or fabric layer or as a combination this aforementioned material layers.
  • the carrier layer is in particular designed so that it allows a reliable assembly of the blanket on the blanket cylinder, but may also additionally have a supporting and stabilizing, especially shape-stabilizing effect, as given for example in metal carrier layers or plastic carrier layers due to the stiffness of the material is.
  • a second intermediate layer formed as a compressible layer is arranged between the carrier layer and the fabric layer described above.
  • This printing blanket can be further developed in the context of the printing unit according to the invention also analogous to the printing blanket according to the invention described above be so also have the above features of the blanket individually or in combination.
  • Another object of the present invention is a method for producing a blanket, which is designed for attachment to a blanket cylinder and which has at least an inner carrier layer, a first intermediate layer formed as a fabric layer, an outer cover layer, wherein the fabric layer includes warp threads and weft threads, characterized in that a blanket cutout is taken from a blanket web such that the extension of the blanket cutout in the longitudinal direction of the blanket web is greater than the extension in the transverse direction of the blanket web.
  • the Figures 1 and 2 show a blanket 11 according to the prior art, which is designed for attachment to a blanket cylinder 8.
  • This printing blanket 11 has an inner carrier layer 4, which is designed as a fabric layer 6 first intermediate layer and an outer cover layer 7, wherein the fabric layer 6 includes warp threads 2 and weft threads 3.
  • This blanket 11 is according to the prior art so on a blanket cylinder 8 (as he, for example, in Fig. 5 shown) attachable, that the warp threads 2 extend in the circumferential direction of the blanket cylinder 8 and the weft threads 3 in the axial direction of the blanket cylinder 8.
  • FIGS. 3 and 4 an inventive blanket 1, which is also designed for attachment to a blanket cylinder 8.
  • Figures 5 and 6 show how this blanket according to the invention is mounted on the blanket cylinder 8.
  • This also has: an inner carrier layer 4, a first intermediate layer formed as a fabric layer 6 and an outer cover layer 7, wherein the fabric layer 6 includes warp threads 2 and weft threads 3.
  • blanket cylinder 8 is fastened, that the warp threads 2 extend in the axial direction A of the blanket cylinder 8 and the weft threads 3 in the circumferential direction of the blanket cylinder 8.
  • FIGS. 5 and 6 show in cross section for reasons of simplicity, only the weft threads 3, as well as in the enlarged detail according to Fig. 6 recognizable.
  • the cross section is as in Fig. 4 shown formed so that between the warp threads 3, the weft threads 2 are woven. Show this Fig. 4 most clearly the details in cross section through the blanket 1 on the blanket cylinder 8, Fig. 4 thus provides a further enlarged cross-sectional view FIGS. 5 and 6 represents.
  • the expansion of the fabric layer 6 is greater in the direction of the weft threads 3 than in the direction of the warp threads 2.
  • the carrier layer 4 is either formed as a metal layer, for example as a metal backing in so-called sleeve-shaped blankets or sleeve blankets.
  • the carrier layer 4 can also be formed as a plastic layer or similar rigid, preferably incompressible layer.
  • the carrier layer 4 but also as a particularly reinforced, eg. be formed form-stabilizing fabric layer.
  • the blanket 1 is formed as a sleeve-shaped, cylindrical blanket.
  • Between the carrier layer 4 and the fabric layer 6 may preferably be arranged as a compressible layer 7 formed second intermediate layer. It is also possible to provide even more than the layers shown, in particular even more compressible layers and fabric layers between carrier layer 4 and cover layer 7. Thus, for example. Repeat the sequence of intermediate layers 5 and 6 once more or several times.
  • An inventive printing unit for a web-fed printing press has a forme cylinder 16 with a printing plate 9, which carries at least 96 printed pages 10. This is partial in Fig. 7 shown.
  • the pressure plate 10 is still shown in a state in which it is not firmly clamped on the forme cylinder 16. It may be preferred to provide a single pressure plate which carries the complete at least 96 printed pages. Alternatively, a plurality of printing plates 10 could be provided on the forme cylinder 16, which carry a total of 96 pages. A single pressure plate is preferred for reasons of minimized effort.
  • a blanket cylinder 8 after Fig. 5 with a blanket 1, at least comprising an inner carrier layer 4, a first intermediate layer formed as a fabric layer 6 and an outer cover layer 7, the fabric layer 6 comprising warp threads 2 and weft threads 3.
  • the blanket is fixed on the blanket cylinder 8 so that the warp threads 2 extend in the axial direction A of the blanket cylinder 8 and the weft threads 3 in the circumferential direction of the blanket cylinder 8.
  • a printing blanket cut 1a provided as printing blanket 1 is taken such that the extent of the blanket cutout 1a in the longitudinal direction 14 of the blanket web 12 is greater than the extent in the transverse direction 15 of the blanket web 12.
  • the blanket cutout 11th a would be against Blanket 11 according to the prior art revealed, ie section 11 a shows the previous conventional production method for printing blankets 11th
  • the cutout 13 of the blanket material web 12 corresponds to the illustration in FIG Fig. 1 , which shows enlarged this section with the corresponding cross sections. It can be clearly seen how the warp threads 2 extend in the longitudinal direction 14 of the material web 12 and the weft threads 3 extend in the transverse direction 15 of the material web 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (6)

  1. Blanchet (1) à fixer sur un cylindre porte-blanchet (8), présentant au moins une couche porteuse interne (4), une première couche intermédiaire se présentant sous forme d'une couche textile (6) et une couche de couverture externe (7), la couche textile (6) contenant des fils de chaîne (2) et des fils de trame (3), le blanchet (1) se présentant sous forme d'un blanchet en forme de manchon, le blanchet (1) pouvant être fixé sur le cylindre porte-blanchet (8) de manière à ce que les fils de chaîne (2) s'étendent dans le sens axial (A) du cylindre porte-blanchet (8) et les fils de trame (3) dans le sens circonférentiel du cylindre porte-blanchet (8) et le blanchet (1) ayant une conformation radialement extensible de telle sorte qu'il puisse y avoir d'abord un élargissement du blanchet (1) par extension radiale pour glisser le blanchet (1) sur le cylindre porte-blanchet (8) puis une rétraction du blanchet (1) sur le cylindre porte-blanchet (8) par relâchement de l'extension radiale.
  2. Blanchet selon la revendication 1, caractérisé en ce que l'extension de la couche textile (6) en direction des fils de chaîne (2) est supérieure à ce qu'elle est en direction des fils de trame (3), l'extension du blanchet (1) en direction des fils de chaîne (2) étant notamment supérieure à 2,5 m.
  3. Blanchet selon la revendication 1 ou 2, caractérisé en ce que la couche porteuse (4) se présente sous forme d'une couche métallique ou d'une couche de plastique ou d'une couche textile.
  4. Blanchet selon une des revendications 1 à 3, caractérisé en ce que, entre la couche porteuse et la couche textile (6), une seconde couche intermédiaire se présentant sous forme de couche compressible (7) est disposée.
  5. Groupe d'impression pour machine d'impression rotative, présentant au moins
    - un cylindre porte-cliché (16) pourvu d'une plaque d'impression (9) qui présente au moins 96 pages d'impression (10),
    - un cylindre porte-blanchet (8) pourvu d'un blanchet (1), présentant au moins une couche porteuse interne (4), une première couche intermédiaire se présentant sous forme d'une couche textile (6) et une couche de couverture externe (7), la couche textile (6) contenant des fils de chaîne (2) et des fils de trame (3), le blanchet (1) se présentant sous forme d'un blanchet en forme de manchon, le blanchet (1) pouvant être fixé sur le cylindre porte-blanchet (8) de manière à ce que les fils de chaîne (2) s'étendent dans le sens axial (A) du cylindre porte-blanchet (8) et les fils de trame (3) dans le sens circonférentiel du cylindre porte-blanchet (8) et le blanchet ayant une conformation radialement extensible de telle sorte qu'il puisse y avoir d'abord un élargissement du blanchet (1) par extension radiale pour glisser le blanchet (1) sur le cylindre porte-blanchet (8) puis une rétraction du blanchet (1) sur le cylindre porte-blanchet (8) par relâchement de l'extension radiale.
  6. Procédé de fabrication d'un blanchet (1) selon la revendication 1, dans lequel le blanchet est conçu pour être fixé sur un cylindre porte-blanchet (8) et présente au moins
    une couche porteuse interne (4),
    une première couche intermédiaire se présentant sous forme d'une couche textile (6),
    une couche de couverture externe (7),
    la couche textile (6) contenant des fils de chaîne (2) et des fils de trame (3),
    caractérisé en ce qu'on retire d'une bande de matériau du blanchet (12) une découpe de blanchet (1a) prévue pour servir de blanchet (1) telle que l'extension de la découpe de blanchet (1a) soit supérieure dans le sens longitudinal (14) de la bande de matériau du blanchet (12) à l'extension dans le sens transversal (15) de la bande de matériau du blanchet (12).
EP20090774642 2008-12-18 2009-12-15 Blanchet d'impression tubulaire radiallement expansible et procédé de sa production Not-in-force EP2401151B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008054861 2008-12-18
PCT/EP2009/008958 WO2010069540A2 (fr) 2008-12-18 2009-12-15 Blanchet de forme cylindrique, à extension radiale, et procédé de fabrication d'un blanchet de ce type

Publications (2)

Publication Number Publication Date
EP2401151A2 EP2401151A2 (fr) 2012-01-04
EP2401151B1 true EP2401151B1 (fr) 2015-05-20

Family

ID=40719844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090774642 Not-in-force EP2401151B1 (fr) 2008-12-18 2009-12-15 Blanchet d'impression tubulaire radiallement expansible et procédé de sa production

Country Status (7)

Country Link
US (1) US20110308413A1 (fr)
EP (1) EP2401151B1 (fr)
JP (1) JP2012512060A (fr)
CN (1) CN102256793A (fr)
CA (1) CA2748325A1 (fr)
DE (2) DE102009001822A1 (fr)
WO (1) WO2010069540A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103827A1 (de) * 2012-05-02 2013-11-07 Contitech Elastomer-Beschichtungen Gmbh Verbundschichtmaterial

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3652376A (en) 1969-07-11 1972-03-28 Grace W R & Co Multi-ply press packing for the impression member in a letter press
US3700541A (en) 1970-04-11 1972-10-24 Dunlop Holdings Ltd Printers' blankets
US4042743A (en) 1970-06-11 1977-08-16 Uniroyal, Inc. Compressible offset printing blanket
DE2803908A1 (de) 1978-01-30 1979-08-02 Continental Gummi Werke Ag Druckwalze, insbesondere fuer den offsetdruck
US4770928A (en) 1983-12-27 1988-09-13 Day International Corporation Method of curing a compressible printing blanket and a compressible printing blanket produced thereby
US5429048A (en) 1989-10-05 1995-07-04 Gaffney; John M. Offset lithographic printing press
FR2660895B1 (fr) 1990-04-12 1994-10-28 Rollin Sa Cylindre revetu d'un blanchet d'impression.
US5066537A (en) * 1990-10-04 1991-11-19 W. R. Grace & Co.-Conn. Printing blanket containing a high elongation fabric
US5215013A (en) * 1992-07-07 1993-06-01 Heidelberg Harris Inc. Printing blanket with noise attenuation
DE19648494C2 (de) * 1996-11-22 2002-03-07 Novurania S P A Drucktuch für Offsetdruck
WO2001070512A1 (fr) * 2000-03-21 2001-09-27 Day International, Inc. Blanchet souple de transfert d'image possedant un renforcement non extensible
EP1412184B1 (fr) * 2001-08-03 2010-04-14 Koenig & Bauer Aktiengesellschaft Elements d'impression pour presse d'imprimerie
DE10229784A1 (de) * 2001-10-05 2003-05-08 Koenig & Bauer Ag Druckwerke einer Druckmaschine
US6899029B2 (en) * 2002-02-14 2005-05-31 Reeves, S.P.A. Multi-layered gapped cylindrical printing blanket
US7598186B2 (en) * 2006-04-11 2009-10-06 Day International, Inc. Printing blanket construction

Also Published As

Publication number Publication date
CA2748325A1 (fr) 2010-06-24
JP2012512060A (ja) 2012-05-31
WO2010069540A2 (fr) 2010-06-24
CN102256793A (zh) 2011-11-23
US20110308413A1 (en) 2011-12-22
DE102009001822A1 (de) 2010-07-01
WO2010069540A3 (fr) 2010-08-12
EP2401151A2 (fr) 2012-01-04
DE202009004009U1 (de) 2009-06-04

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