EP1240021A1 - Druckhülse mit befestigungsmitteln für druckplatten und verfahren zu ihrer herstellung - Google Patents

Druckhülse mit befestigungsmitteln für druckplatten und verfahren zu ihrer herstellung

Info

Publication number
EP1240021A1
EP1240021A1 EP00990079A EP00990079A EP1240021A1 EP 1240021 A1 EP1240021 A1 EP 1240021A1 EP 00990079 A EP00990079 A EP 00990079A EP 00990079 A EP00990079 A EP 00990079A EP 1240021 A1 EP1240021 A1 EP 1240021A1
Authority
EP
European Patent Office
Prior art keywords
support
sticky
sleeve
layer
printing plates
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
EP00990079A
Other languages
English (en)
French (fr)
Other versions
EP1240021B1 (de
Inventor
Laurent Aubanel
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.)
MacDermid Graphics Solutions Europe SAS
Original Assignee
MacDermid Graphic Arts SAS
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 MacDermid Graphic Arts SAS filed Critical MacDermid Graphic Arts SAS
Publication of EP1240021A1 publication Critical patent/EP1240021A1/de
Application granted granted Critical
Publication of EP1240021B1 publication Critical patent/EP1240021B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
    • B41N6/02—Chemical means for fastening printing formes on mounting boards
    • 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
    • B41F27/1262—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means
    • B41F27/1275—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means by means of adhesives, staples
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/10—Relief printing
    • B41P2200/12—Flexographic printing

Definitions

  • the invention relates to the field of printing and more particularly the fixing of printing plates or plates on cylinders supporting printing machines or on sleeves provided on these cylinders.
  • These printing plates conventionally comprise a layer of photopolymer, placed on a support. Before the printing plate is used, the photopolymer layer is developed to obtain a layer with reliefs which will make it possible to reproduce the image to be printed.
  • the printing plates are generally reused several times. It is therefore desirable to have fixing means which effectively maintain the plates during printing, while allowing their removal from the plate cylinder or from the sleeve fixed on the cylinder, for subsequent reuse.
  • Known means for fixing the printing plates consist of strips of double-sided adhesive.
  • Each strip of adhesive is fixed by an adhesive side, directly on the plate cylinder or on a sleeve fixed on the cylinder, while one or more printing plates are fixed on the other side of the strip.
  • the object of the invention is to overcome these drawbacks by proposing a sleeve, intended to be fixed to a cylinder and comprising means for fixing printing plates which are of simple manufacture and of low cost price.
  • the invention thus relates to an endless sleeve, comprising at least one support of substantially cylindrical shape and the outer surface of which is covered with at least one layer of a sticky and permanently adherent material, said sleeve being intended to be mounted. on a support cylinder, while its outer surface allows removable fixing by adhesion of printing plates.
  • the term “sticky and permanently adherent material” is understood to mean a material whose bonding and adhesion properties last over time, typically for a period of at least 8 to 12 months.
  • the sleeve according to the invention after its mounting on a support cylinder or plate holder, avoids the use of double-sided adhesive.
  • the entire outer surface of the assembly, consisting of the cylinder and the sleeve, is permanently sticky and adherent, which allows printing plates to be fixed directly to it. No prior positioning and fixing operation of a double-sided adhesive is therefore necessary.
  • the printing plates can be easily removed from the outer surface of the sleeve for later use.
  • This sleeve has a much lower cost price than double-sided adhesives, thanks to specific manufacturing processes.
  • the continuity of the sleeve according to the invention makes it possible to eliminate the drawbacks linked to the use of fixing means comprising seals. Indeed, the presence of seals conventionally causes printing defects and therefore loss of paper.
  • the sticky and permanently adherent material is based on polymers.
  • this material is a crosslinked photopolymer.
  • the total thickness of the sticky and permanently adherent materials is preferably between 10 and 500 ⁇ m (microns).
  • the support of the sleeve according to the invention is advantageously compressible.
  • the invention also relates to a method for obtaining a sleeve as described above, this method consisting in: placing a support of substantially cylindrical shape in an annular coating machine and in
  • the support is arranged vertically in said machine, the latter comprising an annular container containing said material and placed around said support, the support and the container being driven in a relative movement of vertical translation in order to deposit said layer. on the support.
  • FIG. 2 is a schematic view of a machine for applying the material by spraying.
  • the reference 1 designates means for holding a substantially cylindrical support 2 in a vertical position. These means 1 may in particular consist of a cylinder.
  • the support 2 is in particular made of a composite material such as an epoxy resin matrix reinforced with fibers.
  • the machine also includes an annular reservoir 3 which contains a sticky and permanently adherent material.
  • the support 2 is fixed and the machine comprises means 5 associated with the container 3 for moving it vertically or even along the axis 20 of the support 2.
  • a machine could also be provided with a fixed annular container 3 and means for moving the support 2 along its axis 20.
  • the means of translation of the annular container 3 are for example constituted by two nuts 6,7 fixed to the container 3, in diametrically opposite positions, each of these nuts being designed to cooperate with a threaded rod 8,9. Furthermore, suitable means 10, 11 are provided for driving each of these threaded rods 8, 9.
  • the coating of the support 2 is carried out by controlling the drive means 10, 11 of the threaded rods 8, 9, so that the annular container 3 moves along the axis 20, for example from top to bottom.
  • the annular container 3 is designed to deposit, on the support 2, a layer of the sticky and adherent material which it contains, the thickness of which is between 10 and 250 ⁇ m (microns). It is of course possible to repeat the operation to increase the total thickness of the sticky materials on the support 2.
  • This material is advantageously based on polymers.
  • means 12 are provided for crosslinking the polymer deposited on the support 2.
  • polymers based on carboxylated nitrile polymers based on carboxylated nitrile, polyisoprene, acrylic resin, silicone, polychloroprene, ethylene vinyl acetate, butyl and polyurethane.
  • Cross-linking can be obtained by various means, in particular by exposure to UV light in the case of photopolymers, or also by application of heat.
  • these materials After crosslinking, these materials have a sticky nature, allowing the removable fixing of printing plates, which is characterized by a "sticky” or “tack” expressed in g / cm and measured for example on a device of the MONSANTO brand and of the type “TELTAK” with procedures known per se.
  • the "sticky” values corresponding to adhesives according to the invention are typically in the range of about 50 to 500 g / cm.
  • a printing plate previously fixed on a support, can be removed therefrom without part of the adhesive layer remaining fixed on the plate.
  • the crosslinking of the polymer is not necessarily carried out in the induction machine itself, but this mode of implementation has obvious advantages.
  • annular coating process allows the application of layers of material whose thickness is relatively thin.
  • the sticky and permanently adherent material which is deposited on the support 2 is relatively expensive.
  • the possibility of applying relatively thin layers of material makes it possible to reduce the cost price of the sleeve according to the invention, compared with known fixing means and in particular double-sided adhesives.
  • FIG. 2 schematically illustrates an installation for projecting the sticky material and adhering to the support cylinder Z capable of being driven in rotation, as indicated by arrows.
  • the material is projected onto the exterior surface of the cylinder 2 by a projection head 14 movable along a guide device 15 extending parallel to the axis of the support, under the effect of a control device 16.
  • a control device 16 Such a device is known per se and does not need to be explained in more detail.
  • the sleeve only comprises a layer of a sticky and permanently adherent material.
  • the invention is not limited to this example and in particular, the sleeve may comprise different layers, applied successively, produced or not with the same sticky material and permanently adhered.
  • the application of several successive layers on the support, during the manufacture of the sleeve according to the invention, can make it possible to obtain a determined thickness or particular performances.
  • different materials can be used depending on their physical properties, in particular in terms of hardness, chemical resistance or even stickiness.
  • the support of the sleeve according to the invention can be made of a compressible material to improve the quality of printing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Coating Apparatus (AREA)
EP00990079A 1999-12-20 2000-12-20 Druckhülse mit befestigungsmitteln für druckplatten und verfahren zu ihrer herstellung Expired - Lifetime EP1240021B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9916072 1999-12-20
FR9916072A FR2802465B1 (fr) 1999-12-20 1999-12-20 Manchon comportant des moyens de fixation de plaques d'impression et procede d'obtention
PCT/FR2000/003611 WO2001045951A1 (fr) 1999-12-20 2000-12-20 Manchon comportant des moyens de fixation de plaques d'impression et procede d'obtention

Publications (2)

Publication Number Publication Date
EP1240021A1 true EP1240021A1 (de) 2002-09-18
EP1240021B1 EP1240021B1 (de) 2003-10-29

Family

ID=9553485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00990079A Expired - Lifetime EP1240021B1 (de) 1999-12-20 2000-12-20 Druckhülse mit befestigungsmitteln für druckplatten und verfahren zu ihrer herstellung

Country Status (7)

Country Link
EP (1) EP1240021B1 (de)
AT (1) ATE252982T1 (de)
AU (1) AU2688301A (de)
DE (1) DE60006285T2 (de)
ES (1) ES2210029T3 (de)
FR (1) FR2802465B1 (de)
WO (1) WO2001045951A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114174069A (zh) * 2019-08-30 2022-03-11 德莎欧洲股份公司 管状胶粘剂印版附接层、其制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6954291B2 (en) 2001-09-04 2005-10-11 Esko-Graphics A/S Method, apparatus, and computer program for reducing plate material waste in flexography plate making
US6823793B2 (en) 2003-01-06 2004-11-30 Esko Graphics, Nv Method and apparatus for mounting flexographic plate segments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03294376A (ja) * 1990-04-12 1991-12-25 Lintec Corp 印刷ロール及び印刷ロール用粘着シート
NL9400057A (nl) * 1994-01-13 1995-08-01 J M J Houtstra Holding B V Bevestigingsmiddel.
US5798019A (en) * 1995-09-29 1998-08-25 E. I. Du Pont De Nemours And Company Methods and apparatus for forming cylindrical photosensitive elements
FR2763888B1 (fr) * 1997-05-28 1999-07-16 Rollin Sa Manchon perfectionne pour cylindre de machine d'impression ou analogue et procede de mise en place de ce manchon
IT1293502B1 (it) * 1997-07-29 1999-03-01 Gabriella Cacchi Procedimento di montaggio di cliche' su maniche e relativo montaggio delle maniche su rulli di macchine da stampa flessografiche

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0145951A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114174069A (zh) * 2019-08-30 2022-03-11 德莎欧洲股份公司 管状胶粘剂印版附接层、其制造方法
CN114174069B (zh) * 2019-08-30 2023-05-23 德莎欧洲股份公司 管状胶粘剂印版附接层、其制造方法
US11951732B2 (en) 2019-08-30 2024-04-09 Tesa Se Adhesive printing form attachment layer in tube shape, method for its manufacture, and method of printing using the same

Also Published As

Publication number Publication date
EP1240021B1 (de) 2003-10-29
FR2802465A1 (fr) 2001-06-22
AU2688301A (en) 2001-07-03
DE60006285D1 (de) 2003-12-04
ATE252982T1 (de) 2003-11-15
DE60006285T2 (de) 2004-07-22
ES2210029T3 (es) 2004-07-01
WO2001045951A1 (fr) 2001-06-28
FR2802465B1 (fr) 2002-10-25

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