EP0306933A2 - Plaque d'impression pour l'impression en relief sur rotative à journaux - Google Patents

Plaque d'impression pour l'impression en relief sur rotative à journaux Download PDF

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Publication number
EP0306933A2
EP0306933A2 EP88114640A EP88114640A EP0306933A2 EP 0306933 A2 EP0306933 A2 EP 0306933A2 EP 88114640 A EP88114640 A EP 88114640A EP 88114640 A EP88114640 A EP 88114640A EP 0306933 A2 EP0306933 A2 EP 0306933A2
Authority
EP
European Patent Office
Prior art keywords
printing
layer
printing plate
plastic
plate
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
EP88114640A
Other languages
German (de)
English (en)
Other versions
EP0306933B1 (fr
EP0306933A3 (en
Inventor
Dieter Güls
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.)
Bonner Zeitungsdruckerei und Verlagsanstalt H Neusser & Co KG GmbH
Original Assignee
Bonner Zeitungsdruckerei und Verlagsanstalt H Neusser & Co KG 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 Bonner Zeitungsdruckerei und Verlagsanstalt H Neusser & Co KG GmbH filed Critical Bonner Zeitungsdruckerei und Verlagsanstalt H Neusser & Co KG GmbH
Priority to AT88114640T priority Critical patent/ATE84750T1/de
Publication of EP0306933A2 publication Critical patent/EP0306933A2/fr
Publication of EP0306933A3 publication Critical patent/EP0306933A3/de
Application granted granted Critical
Publication of EP0306933B1 publication Critical patent/EP0306933B1/fr
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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix

Definitions

  • the invention relates to a printing plate with a plastic cover layer, an adhesive layer and a metal carrier for printing on printing materials such as paper, cardboard, plastic film or the like, in particular in the newspaper rotary high-pressure process.
  • the level of print quality in newspaper printing is largely determined by the requirements of the market, the reader's habits, the demands of advertisers, the competitive situation and the technical possibilities, taking economic considerations into account.
  • the higher quality level is generally achieved with the offset process, if Thanks to the further development of the materials and the use of photopolymer printing plates, progress has also been made in newspaper printing. To achieve average offset quality, however, special and relatively complex efforts are required in the high-pressure process.
  • mineral and vegetable oil-containing inks of different viscosity and consistency are used, the properties of which are ultimately determined by the printing material and the coverage requirement, the path and penetration behavior, the drying property and the smudge resistance.
  • inking units In order to bring the required amount of ink onto the printing plate and from there onto the printing substrate, a wide variety of inking units are used, from simple lifter inking units through film inking units to modern anilox inking units, which have the task of ink distribution, ink quantity control and inking of the printing plates.
  • This creates differences that require very different color variants due to their technical conception.
  • the required reproduction-related quantity of ink can only be measured in the page-occupied printing direction, the areal interval sequence cannot be controlled, from which it follows that the saturation of the printing plate with ink at high density inevitably leads to oversaturation in the areas with lighter elements in the interval sequence in the printing direction.
  • the printing process takes place in newspaper high-pressure by counter-pressure between the printing and plate cylinders.
  • the most varied hardness conditions are found in the coating area of the printing cylinder, as well as magnetic and tensioning attachments for the clamping devices for the printing plates.
  • the contact pressure between the pressure and plate cylinders has a linear effect across the entire cylinder width and can only be controlled linearly on the right and left sides.
  • the object of the invention is to avoid this disadvantage and accordingly to provide a printing plate which enables a compensation of the dynamic forces occurring during the printing process between the printing plate on the plate cylinder and the printing material with impression cylinder, without thereby questioning the quality of the printout .
  • the flexible intermediate layer provided under the plastic cover layer is capable of absorbing to a high degree the compressive forces acting perpendicular to the planar extent, whereby the plastic layer is also able to move more or less strongly in the direction perpendicular to its planar extent in accordance with the respective contact pressure to deform and to adapt to the conditions of the printing material and the partially necessary drawing structures of the ink-carrying printing surface of the printing plate, without the need to use a particularly soft material for the plastic cover layer. It is advantageous that the relief height of the plastic layer can be kept lower than is the case with printing plates of conventional design.
  • the flexible intermediate layer also makes it possible to provide the carrier layer with a smaller thickness than the conventional designs, without thereby jeopardizing the proper functioning and durability of the printing plate.
  • the known printing plate of FIG. 1 has the cover layer 1 made of a photopolymerizable plastic with a thickness or relief height of 0.50 mm, which is connected flatly to the 0.24 mm thick metal carrier layer 3 by means of the 0.02 mm thick adhesive layer 2.
  • the printing plate according to the invention of FIG. 2 has a 0.30 mm thick plastic cover layer 1, a likewise 0.30 mm thick flexible intermediate layer 4 and a 0.14 mm thick metal carrier layer 3, layers 1 and 3 with the intermediate layer 4 are connected by means of two adhesive layers with a total thickness of 0.02 mm, so that, as in FIG. 1, the overall thickness of the printing plate is 0.76 mm.
  • the plastic cover layer of FIG. 2 can, when using exactly the same plastic, in particular exactly the same hardness or softness, compressive stresses in the direction perpendicular to its planar extent due to its substantially smaller thickness and the flexible Adjust the underlay much better than the plastic cover layer of Figure 1.
  • suitable polyolefins in particular polymers of ethylene and / or propylene, such as e.g. Polyethylene (PE) or polypropylene (PP), but also, for example, also photopolymerizable plastics.
  • PE Polyethylene
  • PP polypropylene
  • the elastomers of the intermediate layer are synthetic or natural polymers with rubber-elastic behavior such as, among others. in R ⁇ MPPS CHEMIE-LEXIKON 8th edition with the keywords elastomers, page 1082 and rubber, page 2064 ff and in Winnaker-Küchler, Chemical Technology Volume 6, Organic Technology II, in the section Elastomers, page 514.
  • NR natural rubber
  • SBR styprol-butadiene rubber
  • BR polybutadiene
  • IIR polyisoprene
  • IIR ethylene-propylene rubber
  • EPM EPDM
  • NBR acrylate rubber
  • ACM acrylate rubber
  • polyether rubbers thioplastics, silicone rubbers and fluororubbers.
  • elastomers which can be firmly and permanently connected to the plastic cover layer and, if appropriate, the carrier and which are not attacked by the printing inks.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Printing Methods (AREA)
EP88114640A 1987-09-09 1988-09-08 Plaque d'impression pour l'impression en relief sur rotative à journaux Expired - Lifetime EP0306933B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114640T ATE84750T1 (de) 1987-09-09 1988-09-08 Druckplatte, insbesondere fuer den zeitungsrotations-hochdruck.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873730194 DE3730194A1 (de) 1987-09-09 1987-09-09 Druckplatte, insbesondere fuer den zeitungsrotations-hochdruck
DE3730194 1987-09-09

Publications (3)

Publication Number Publication Date
EP0306933A2 true EP0306933A2 (fr) 1989-03-15
EP0306933A3 EP0306933A3 (en) 1989-04-19
EP0306933B1 EP0306933B1 (fr) 1993-01-20

Family

ID=6335566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114640A Expired - Lifetime EP0306933B1 (fr) 1987-09-09 1988-09-08 Plaque d'impression pour l'impression en relief sur rotative à journaux

Country Status (4)

Country Link
EP (1) EP0306933B1 (fr)
JP (1) JPH01105790A (fr)
AT (1) ATE84750T1 (fr)
DE (2) DE3730194A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635378A3 (fr) * 1993-07-22 1995-11-29 Saint Gobain Vitrage Forme d'impression pour procédé d'impression typographique et utilisation de la forme pour l'impression sur des surfaces dures non absorbantes.
US5578364A (en) * 1995-05-03 1996-11-26 Markem Corporation Gravure plate assembly
WO1999039916A1 (fr) * 1998-02-06 1999-08-12 Technoplast Beschichtungsgesellschaft Mbh Forme typographique anti-dechirure
EP1655145A1 (fr) * 2004-11-04 2006-05-10 Folex Coating GmbH Plaque d'impression pour laques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29801017U1 (de) * 1998-01-23 1998-03-05 MAN Roland Druckmaschinen AG, 63075 Offenbach Beschichtungseinheit für eine Druckmaschine und Hochdruckplatte

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE437281A (fr) *
CH277680A (de) * 1948-04-20 1951-09-15 Semperit Ag Elastische, mehrschichtige Druckform.
US2741297A (en) * 1952-05-09 1956-04-10 Us Rubber Co Printing plate material
NL294984A (fr) * 1962-07-12
EP0057593A3 (fr) * 1981-02-02 1983-01-19 Uniroyal, Inc. Plaque d'impression à photopolymère compressible
US4582777A (en) * 1983-05-18 1986-04-15 W. R. Grace & Co. Compressible printing plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635378A3 (fr) * 1993-07-22 1995-11-29 Saint Gobain Vitrage Forme d'impression pour procédé d'impression typographique et utilisation de la forme pour l'impression sur des surfaces dures non absorbantes.
US5578364A (en) * 1995-05-03 1996-11-26 Markem Corporation Gravure plate assembly
WO1999039916A1 (fr) * 1998-02-06 1999-08-12 Technoplast Beschichtungsgesellschaft Mbh Forme typographique anti-dechirure
EP1655145A1 (fr) * 2004-11-04 2006-05-10 Folex Coating GmbH Plaque d'impression pour laques
EP1977903A1 (fr) * 2004-11-04 2008-10-08 Folex Coating GmbH Plaque d'impression pour laques

Also Published As

Publication number Publication date
DE3877666D1 (de) 1993-03-04
ATE84750T1 (de) 1993-02-15
JPH01105790A (ja) 1989-04-24
DE3730194A1 (de) 1989-03-23
EP0306933B1 (fr) 1993-01-20
EP0306933A3 (en) 1989-04-19

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