EP3290221A1 - Article continu multicouches, en particulier blanchet d'imprimerie, comprenant au moins un support de renfort et son procédé de fabrication - Google Patents

Article continu multicouches, en particulier blanchet d'imprimerie, comprenant au moins un support de renfort et son procédé de fabrication Download PDF

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Publication number
EP3290221A1
EP3290221A1 EP17175607.5A EP17175607A EP3290221A1 EP 3290221 A1 EP3290221 A1 EP 3290221A1 EP 17175607 A EP17175607 A EP 17175607A EP 3290221 A1 EP3290221 A1 EP 3290221A1
Authority
EP
European Patent Office
Prior art keywords
layer
yarn
article
twist
multilayer endless
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
EP17175607.5A
Other languages
German (de)
English (en)
Other versions
EP3290221B1 (fr
Inventor
Jens LÖSCHNER
Jürgen Fuchs
Gabriele Lindenthal
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.)
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Publication date
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Publication of EP3290221A1 publication Critical patent/EP3290221A1/fr
Application granted granted Critical
Publication of EP3290221B1 publication Critical patent/EP3290221B1/fr
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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

Definitions

  • the invention relates to a multilayer endless article, in particular a blanket, which contains at least one strength carrier and a method for its production.
  • the multilayer endless fabric includes a first layer comprising a polymer blend based on at least one elastomer, at least one further layer, and at least one strength backing.
  • Blankets such as in EP 0 191 779 B2 are multilayer articles with a printing layer of a polymeric material, at least one compressible or incompressible intermediate layer and at least one strength layer, consisting of a textile fabric, wherein the individual layers form an adhesive bond with each other.
  • blankets are usually produced as web goods and cut to length according to the circumference of the printing cylinder.
  • the cut-to-length parts of the sheet goods are the formats that are fixed on both sides with mounting rails in the clamping channel of the printing cylinder and clamped.
  • the invention is based on the object to provide a multi-layered endless article, in particular a blanket, which is characterized by a precise and uniform straight line in the printing process.
  • the physical properties of the article should remain the same throughout the entire article.
  • the multilayer endless article contains a first layer comprising a polymer blend based on at least one elastomer, at least one further layer and at least one strength member, wherein the strength member is in thread construction and the individual threads of the thread construction as yarn or exist as a twist, each with a yarn or a twisted yarn with S-twist and a yarn or a twisted yarn with Z-rotation are alternately adjacent to each other in the running direction.
  • tpm or "t / m” means "turns per meter” and is a typical unit in textile technology in twists of all kinds.
  • the alternative unit is also “m” 1 ".
  • the yarn can be in the form of a monofilament or multifilament or in a hybrid form, ie in a combination of monofilament and multifilament.
  • the thread may be formed as a single-stage or multi-stage thread. Single-ply threads are often referred to as cords. This results in further sub-thread constructions.
  • Synthetic materials are in particular synthetic polymers, such as polyacrylonitrile, polypropylene, polyester, polyamide, polyurethane, polyphenylene sulfide, polyoxadiazole, aramids, such as p-aramid, m-aramid or co-poly para aramid, polyimide, polyetherimide, polyetheretherketone, polyethylene 2,6-naphthalate, polyphenylene, Polyphenylene oxide, polyphenylene sulfide, polyphenylene ether, Polybenzoxazole, polyvinyl alcohol in question.
  • synthetic polymers such as polyacrylonitrile, polypropylene, polyester, polyamide, polyurethane, polyphenylene sulfide, polyoxadiazole, aramids, such as p-aramid, m-aramid or co-poly para aramid, polyimide, polyetherimide, polyetheretherketone, polyethylene 2,6-naphthalate, polyphenylene, Polyphenylene oxide
  • the semisynthetic materials may, for example, be modal, viscose or lyocell.
  • the natural materials may be rock wool or cotton, flax or hemp, or wool or silk.
  • Inorganic materials such as glass, ceramics, carbon (carbon), metal or rock, such as basalt, are also conceivable.
  • the materials mentioned can be used alone or in combination, as a so-called hybrid.
  • the individual threads can also be prepared adhesive friendly.
  • the material is preferably a material that is as low in stretch as possible, such as, for example, glass, aramid, polyoxadiazole, metal or ceramic, or the material is pretreated accordingly, eg. For example, by stretching to make it low-stretch. This minimizes elongation of the end product.
  • the elongation of the parallel-arranged thread construction in a width of 50 mm and under a load of 500 N 0.5 to 1.5%.
  • the requirement for the elongation properties of the individual thread construction depends on the design selected, the number per reference width and the material, since the force distribution is evenly distributed over the existing thread constructions.
  • filament yarns are used as the yarn, they preferably have a rotation between 60 and 120 t / m. If yarns are used as yarns, the optimum number of turns of spinning or twisting is used for the selected material, eg for cotton, preferably 430 to 480 t / m.
  • the multilayer endless article comprises a first layer comprising a polymer blend based on at least one elastomer.
  • the elastomer is preferably a rubber.
  • Particularly suitable rubber components are: ethylene-propylene copolymer (EPM) and / or ethylene-propylene-diene copolymer (EPDM) and / or nitrile rubber (NBR) and / or (partially) hydrogenated nitrile rubber (HNBR) and / or fluororubber (FKM) and / or chloroprene rubber (CR) and / or natural rubber (NR) and / or styrene Butadiene rubber (SBR) and / or isoprene rubber (IR) and / or butyl rubber (IIR) and / or bromobutyl rubber (BIIR) and / or chlorobutyl rubber (CIIR) and / or butadiene rubber (BR) and / or chlorinated Polyethylene (CM)
  • the polymer mixture of the first layer is a rubber mixture which contains, in addition to the rubber component, further mixing ingredients.
  • the usual compounding ingredients include at least one crosslinker or crosslinker system (crosslinker and accelerator).
  • Other compounding ingredients are usually still a filler and / or a processing aid and / or a plasticizer and / or an anti-aging agent and optionally further additives (for example color pigments).
  • crosslinker and accelerator crosslinker and accelerator
  • Other compounding ingredients are usually still a filler and / or a processing aid and / or a plasticizer and / or an anti-aging agent and optionally further additives (for example color pigments).
  • further additives for example color pigments
  • the multilayer endless article preferably contains at least one further compressible layer which acts as a compressible intermediate layer.
  • the compressibility of the layer is usually achieved by pores, which form a so-called foam structure. To generate these pores either microspheres, blowing agents or the like are used.
  • this compressible layer is preferably located between the first layer, which serves as cover layer, also referred to as printing layer, and the reinforcement layer.
  • the compressibility is preferably 20 to 30% based on the total thickness of the article. If the article has a thickness of 2 mm, a compressibility of 25% means that the article can be impressed with a defined force of 0.5 mm over a defined area.
  • the multilayer endless article in particular the endless blanket, preferably has a total thickness of 1 to 3 mm.
  • the multilayer endless article in particular the endless blanket, is formed in a particularly preferred embodiment as a cylinder.
  • the diameter here is freely selectable in comparison to metal back printing blankets and / or inflexible sleeves and preferably greater than or equal to 1000 mm.
  • the multilayer article in particular the endless blanket, is preferably free of rigid layers, in particular free from a layer of a metal foil and / or Mettalplatte, it is easy to package and transport.
  • the multilayer endless article also contains a built-in sensor which enables continuous position determination and thus position monitoring. This can be recognized immediately if there are deviations in the straight-ahead, which affect the print image ugly.
  • the sensor may be metal particles and / or metal strips which are introduced at defined positions in the article, ie in one of the polymer layers and / or in the reinforcement layer. All other detectable elements can also be introduced as a sensor at defined locations. It is also possible to use ionic liquids or so-called natural or synthetic DNA markers as a sensor. The sensor is already introduced into the article during the construction of the layers. After vulcanization of the composite, the sensor is thus fixed at a defined position.
  • the invention further relates to a method for producing a multi-layered endless article, in particular an endless blanket, which is characterized by a precise and uniform directional stability.
  • the vulcanization is carried out according to the invention in a Vulkanisierform. This is preferably an autoclave. After completion of the vulcanization and cooling of the article, it is possible to bring the article by grinding to nominal size.
  • Fig. 1 shows a section of the multilayer endless article, which is designed as an endless blanket.
  • the cover layer 1 forms the so-called printing layer, which transfers the printing ink to the paper.
  • a compressible layer 2 is present, which has a pore structure.
  • the reinforcement layer 3 is formed of individual threads which are parallel to each other in the running direction. In this case, threads alternate with S-twist (arrow clockwise) and threads with Z-twist (arrow counterclockwise).
  • the lower layer 4 forms the polymeric layer which rests on the printing roll on the printing blanket.
EP17175607.5A 2016-08-29 2017-06-13 Blanchet d'imprimerie continu multicouches, comprenant au moins un support de renfort et son procédé de fabrication Active EP3290221B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016216191.1A DE102016216191A1 (de) 2016-08-29 2016-08-29 Mehrschichtiger endloser Artikel, insbesondere Drucktuch, enthaltend wenigstens einen Festigkeitsträger und Verfahren zu dessen Herstellung

Publications (2)

Publication Number Publication Date
EP3290221A1 true EP3290221A1 (fr) 2018-03-07
EP3290221B1 EP3290221B1 (fr) 2019-04-24

Family

ID=59061855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17175607.5A Active EP3290221B1 (fr) 2016-08-29 2017-06-13 Blanchet d'imprimerie continu multicouches, comprenant au moins un support de renfort et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP3290221B1 (fr)
DE (1) DE102016216191A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115058810A (zh) * 2022-04-05 2022-09-16 山东超越纺织有限公司 莫代尔、双抗腈纶、桑蚕丝纤维紧密赛络纺纱工艺

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006534A (en) * 1963-05-16 1965-10-06 Grace W R & Co Printing blankets
DE4323128C1 (de) * 1993-07-10 1995-02-02 Continental Ag Mehrschichtiges Drucktuch, insbesondere Offset-Drucktuch
EP0191779B2 (fr) 1984-07-27 1996-01-03 Day International Inc. Procede de production d'un blanchet d'imprimerie compressible et blanchet ainsi produit
DE69314987T2 (de) 1992-04-10 1998-05-28 Rollin Sa Endlosband für den Gebrauch als Drucktuch
DE19940388A1 (de) 1998-08-28 2000-03-09 Kinyosha Co Druckgerät
US6074735A (en) * 1996-11-27 2000-06-13 Sumitomo Rubber Industries, Ltd. Printing blanket
US6182568B1 (en) * 1997-11-14 2001-02-06 Sumitomo Rubber Industries, Ltd. Printing blanket
DE102013104945A1 (de) * 2013-05-14 2014-11-20 Contitech Elastomer-Beschichtungen Gmbh Mehrschichtiger Artikel, insbesondere Drucktuch, enthaltend wenigstens ein textiles Flächengebilde

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006534A (en) * 1963-05-16 1965-10-06 Grace W R & Co Printing blankets
EP0191779B2 (fr) 1984-07-27 1996-01-03 Day International Inc. Procede de production d'un blanchet d'imprimerie compressible et blanchet ainsi produit
DE69314987T2 (de) 1992-04-10 1998-05-28 Rollin Sa Endlosband für den Gebrauch als Drucktuch
DE4323128C1 (de) * 1993-07-10 1995-02-02 Continental Ag Mehrschichtiges Drucktuch, insbesondere Offset-Drucktuch
US6074735A (en) * 1996-11-27 2000-06-13 Sumitomo Rubber Industries, Ltd. Printing blanket
US6182568B1 (en) * 1997-11-14 2001-02-06 Sumitomo Rubber Industries, Ltd. Printing blanket
DE19940388A1 (de) 1998-08-28 2000-03-09 Kinyosha Co Druckgerät
DE102013104945A1 (de) * 2013-05-14 2014-11-20 Contitech Elastomer-Beschichtungen Gmbh Mehrschichtiger Artikel, insbesondere Drucktuch, enthaltend wenigstens ein textiles Flächengebilde

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115058810A (zh) * 2022-04-05 2022-09-16 山东超越纺织有限公司 莫代尔、双抗腈纶、桑蚕丝纤维紧密赛络纺纱工艺

Also Published As

Publication number Publication date
DE102016216191A1 (de) 2018-03-01
EP3290221B1 (fr) 2019-04-24

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