EP0056623A2 - Procédé d'impression rotative de flexographie ou helio indirecte - Google Patents

Procédé d'impression rotative de flexographie ou helio indirecte Download PDF

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Publication number
EP0056623A2
EP0056623A2 EP82100242A EP82100242A EP0056623A2 EP 0056623 A2 EP0056623 A2 EP 0056623A2 EP 82100242 A EP82100242 A EP 82100242A EP 82100242 A EP82100242 A EP 82100242A EP 0056623 A2 EP0056623 A2 EP 0056623A2
Authority
EP
European Patent Office
Prior art keywords
printing
ink
liquid
heating
printing ink
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
EP82100242A
Other languages
German (de)
English (en)
Other versions
EP0056623A3 (en
EP0056623B1 (fr
Inventor
Hans-Peter Dietzell
Friedrich Dr. Kratzert
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.)
NIEDERMAYR PAPIERWARENFABRIK AG
Original Assignee
NIEDERMAYR PAPIERWARENFABRIK AG
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 NIEDERMAYR PAPIERWARENFABRIK AG filed Critical NIEDERMAYR PAPIERWARENFABRIK AG
Priority to AT82100242T priority Critical patent/ATE13158T1/de
Publication of EP0056623A2 publication Critical patent/EP0056623A2/fr
Publication of EP0056623A3 publication Critical patent/EP0056623A3/de
Application granted granted Critical
Publication of EP0056623B1 publication Critical patent/EP0056623B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • 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
    • B41F13/22—Means for cooling or heating forme or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing

Definitions

  • the invention relates to a rotary printing process, in particular the invention relates to flexographic printing and indirect gravure printing.
  • Indirect In flexographic and gravure printing a relatively low-viscosity ink with a high proportion of volatile solvents is transferred to the printing form and from there to the printing medium using suitable aids.
  • the demands to be placed on the color in order to achieve an economical driving style with high speeds and high print quality contradict each other, which is why the known solutions represent a compromise.
  • the ink is kept low-viscosity by a high proportion of volatile solvents in order to facilitate the distribution until it is applied to the printing medium, to favor the emptying of the wells on the gravure cylinder or in the case of flexographic printing on the anilox roller, and the drying routes and the time required thereafter Drying energy in to keep it within an acceptable framework.
  • the low viscosity also has the consequence that the ink droplets removed from the cups on the gravure cylinder or anilox roller during the process cannot be transferred with sharp contours and dimensionally stable, particularly in flexographic printing, so that blurring occurs due to dot gain.
  • the need to avoid low-viscosity paints makes it more difficult to replace volatile solvents, which are desirable from an environmental and safety point of view, with liquid media, such as water, which are difficult to evaporate.
  • the invention is based on the object of designing a rotary printing process in such a way that, despite the high printing speed, a sharp-contoured and strongly colored dot is obtained on the printing medium with as little dot gain as possible.
  • an ink with a small proportion of liquid constituents can be used, the heat supply temporarily reducing the viscosity of the solids content of the ink, so that the halftone cells can be emptied trouble-free on a gravure cylinder or an anilox roller during flexographic printing.
  • the ink droplets cool on the way to the print carrier and on it itself to such an extent that the original or a higher viscosity is reached, which results in a sharp, dimensionally stable print with only a small dot gain.
  • the ink While it is known in offset printing, a printing ink which no diluent i contains to make low viscosity by heating, but in this case the ink is used for printing even at elevated temperatures, wherein the offset machine must be kept warm by the ink duct from all the color transmission system.
  • the color is allowed to cool after emptying the grid cells, or one is additionally cooled by a cooling device.
  • liquid media which are difficult to evaporate can be used in place of volatile solvents in a printing ink and which, moreover, can be non-flammable or only slightly flammable.
  • water colors can be used in the printing process, the liquid components being at least partially evaporated by the heating of the printing ink. This also promotes drying of the finished print.
  • 1 and 2 denotes an ink tray in which there is printing ink.
  • the printing ink is taken up from the ink tray by means of an immersion roller 2, while in indirect gravure printing according to FIG. 2 the ink is fed to the printing unit through an ink application nozzle 10 and the ink tray 1 is only used to catch excess ink.
  • the printing ink is transferred from the dipping roller to an anilox roller 3, over the surface of which there are formed cups 11 (FIG. 3) which receive the ink.
  • the surface of the anilox roller 3 is scraped off by means of a doctor blade 4 in such a way that there is no ink on the webs between the cells 11.
  • the anilox rollers 3 provided with the cups 11 are heatable, so that the ink droplet 12 is heated at least in the area of the support surfaces on the walls of a cup 11 so that the droplet 12 easily and completely detaches from the cup when the surface 13 of the Droplet comes into contact with the plate cylinder 5 or the pressure plate 6.
  • the anilox rollers 3 can be heated by electrical heating elements which are installed in the roller body near the surface and are controlled by temperature sensors so that a predetermined temperature is constantly maintained.
  • the heated rollers can be designed as double-jacket rollers or hollow cylinders through which a heated liquid medium flows, for example thermal oil or water, the temperature of which is controlled as a function of the surface temperature of the anilox roller 3.
  • a heated liquid medium for example thermal oil or water
  • a hollow anilox roller 3 according to FIG. 4 is provided, which is inside for example, completely or partially filled with thermal oil 14.
  • a partial filling is provided so that an air space 15 remains, which is provided for pressure equalization and mixes the thermal oil 14 during rotation, the wetting of the entire inner surface of the jacket 17 being ensured.
  • Axial electric heating rods 16 are arranged to heat the liquid '14 and are controlled by temperature sensors, not shown.
  • the colored droplets 12 located in the etched cells 11 are supplied with heat by the heated surface of the roller, as a result of which the viscosity of the solids content of the colored droplets is reduced, while liquid constituents of the paint are evaporated. Only the droplet surface 13 is exposed to the ambient temperature and therefore retains a higher viscosity. This in turn causes a certain adhesive and shape stabilizing effect during the subsequent transfer to the pressure plate 6 of the plate roller 5.
  • the low viscosity in the contact area of the droplet 12 due to the supply of heat results in good and almost complete removal of the ink droplet from the well, the ink droplet after Loosening it releases its heat back to the colder environment and becomes more viscous. As a result, individual points with sharp edges and transferred with little growth are achieved with a low content of liquid constituents still to be removed.
  • the cooling of the ink droplets on the plate cylinders 5 can be accelerated by additional cooling, for example by blowing the plate cylinders 5 with cooling air.
  • additional cooling for example by blowing the plate cylinders 5 with cooling air.
  • a printing ink which, for reasons of better transport and distribution of the color, initially has a relatively high content of liquid components, for example a water color, the supply of heat becomes part of the liquid Components evaporate, while at the same time the solids content becomes more liquid due to the heat supply.
  • the effect is reversible by cooling, while in the other case a permanent effect or a higher viscosity is achieved when liquid constituents are evaporated.
  • the printing ink used is usually filled in canisters and has room temperature.
  • the surface temperature of the heated rollers or the heating of the printing ink depends on the type of ink used, its viscosity and temperature, the technical characteristics of the printing press, the running speed and the like. It can vary widely and can be determined empirically in a simple manner for the respective conditions.
  • the printing ink can also be heated by radiation, for example by means of infrared or microwaves.
  • the surface of the anilox rollers 3 is preferably heated.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Pens And Brushes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Ink Jet (AREA)
  • External Artificial Organs (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Vending Machines For Individual Products (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Threshing Machine Elements (AREA)
  • Rotary Presses (AREA)
EP82100242A 1981-01-16 1982-01-14 Procédé d'impression rotative de flexographie ou helio indirecte Expired EP0056623B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100242T ATE13158T1 (de) 1981-01-16 1982-01-14 Rotatives flexo- bzw. indirektes tiefdruckverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3101243A DE3101243C2 (de) 1981-01-16 1981-01-16 Rotatives Flexo- bzw. indirektes Tiefdruckverfahren, sowie Vorrichtung zur Durchführung des Verfahrens
DE3101243 1981-01-16

Publications (3)

Publication Number Publication Date
EP0056623A2 true EP0056623A2 (fr) 1982-07-28
EP0056623A3 EP0056623A3 (en) 1982-09-01
EP0056623B1 EP0056623B1 (fr) 1985-05-08

Family

ID=6122750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100242A Expired EP0056623B1 (fr) 1981-01-16 1982-01-14 Procédé d'impression rotative de flexographie ou helio indirecte

Country Status (7)

Country Link
US (1) US4627346A (fr)
EP (1) EP0056623B1 (fr)
JP (1) JPS57163594A (fr)
AT (1) ATE13158T1 (fr)
DE (1) DE3101243C2 (fr)
DK (1) DK150102C (fr)
ES (1) ES8301772A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224033A3 (en) * 1985-11-23 1989-05-10 Koenig & Bauer Aktiengesellschaft Short-inking device for a rotary offset printing press
FR2652038A1 (fr) * 1989-09-20 1991-03-22 France Etat Machine d'impression, notamment sur papier, et de sechage de l'impression, encre correspondante, et procede de fabrication d'une telle encre.
EP0402942A3 (fr) * 1989-06-16 1991-12-18 Dai Nippon Insatsu Kabushiki Kaisha Méthode d'impression de motifs fins
WO1996014211A1 (fr) * 1994-11-02 1996-05-17 Druckfarbenfabrik Gebr. Schmidt Gmbh Procede d'impression

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2686275B2 (ja) * 1988-03-31 1997-12-08 大日本印刷株式会社 印刷シリンダーの加温装置
JPH03159781A (ja) * 1989-11-17 1991-07-09 Matsushita Electric Ind Co Ltd 印刷方法および印刷装置
DE4205713C2 (de) * 1992-02-25 1994-08-04 Siegwerk Druckfarben Gmbh & Co Druckfarbe, Verfahren zu ihrer Herstellung und deren Verwendung
DE4205636C2 (de) * 1992-02-25 1994-12-22 Siegwerk Druckfarben Gmbh & Co Tief- und Flachdruckverfahren und Druckmaschinen zur Durchführung der Verfahren
DE4205682A1 (de) * 1992-02-25 1993-08-26 Berrenbaum Gmbh Vorrichtung und verfahren zum bedrucken von materialbahnen
DE4413736C2 (de) * 1994-04-20 1997-12-18 Heidelberger Druckmasch Ag Verfahren zur Kontrolle der Abnutzung einer Druckform in einer Druckmaschine
JPH09511459A (ja) * 1994-04-20 1997-11-18 シーメンス ニクスドルフ インフオルマチオーンスジステーメ アクチエンゲゼルシヤフト インキを記録媒体に転写するための熱電気式の印刷機
DE4413731C2 (de) * 1994-04-20 1998-07-02 Heidelberger Druckmasch Ag Verfahren zur Steuerung der Temperatur der Druckfarbe in einer Druckmaschine
DE19527889C2 (de) * 1995-07-29 1997-07-17 Koenig & Bauer Albert Ag Kurzfarbwerk zum Einfärben einer Flachdruckplatte
EP1189753B1 (fr) * 1999-06-30 2003-02-19 Océ Printing Systems GmbH Procede et dispositif d'impression permettant le transfert de fluide d'impression sur un materiau support et rouleau d'impression associe
DE10151661C5 (de) * 2001-10-19 2006-12-21 Druckfarbenfabrik Gebr. Schmidt Gmbh Tiefdruckverfahren mit radikalisch härtbaren Druckfarben
DE10246271A1 (de) * 2002-10-02 2004-04-15 Windmöller & Hölscher Kg Verfahren und Vorrichtung zum Einstellen der Farbdichte auf einem Bedruckstoff
WO2011122204A1 (fr) * 2010-03-31 2011-10-06 凸版印刷株式会社 Dispositif d'impression typographique, imprimé produit avec ce dispositif, et procédé de production d'élément électroluminescent organique
DE102011112487A1 (de) * 2011-05-25 2012-11-29 Heidelberger Druckmaschinen Aktiengesellschaft Druckverfahren und Offset-Druckwerk
EP4159463A1 (fr) 2021-10-04 2023-04-05 Hueck Folien Gesellschaft m.b.H. Cylindre d'emboutissage profond pour la micro-impression

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE586742C (de) * 1932-04-21 1933-10-25 Chem Fab Halle Ammendorf Gebr Verfahren zur Herstellung farbgesaettigter Offsetdrucke
US2217620A (en) * 1939-02-10 1940-10-08 Interchem Corp Method of and apparatus for printing
US2322445A (en) * 1941-04-24 1943-06-22 J M Huber Inc Printing process
US2711132A (en) * 1952-07-28 1955-06-21 Viscardi Corp Method for printing and coating
DE1230044B (de) * 1955-10-31 1966-12-08 Erich A Freund Hochdruckverfahren
DE1179225B (de) * 1962-02-09 1964-10-08 Maschf Augsburg Nuernberg Ag Heizvorrichtung fuer das Farbwerk einer Druckmaschine
US3554836A (en) * 1968-07-19 1971-01-12 Minnesota Mining & Mfg Transfer process
US3986874A (en) * 1974-10-23 1976-10-19 Xerox Corporation Driographic imaging method
DE2534845A1 (de) * 1975-08-05 1977-02-10 Schering Ag Druckverfahren und dafuer geeignete schmelzdruckfarben
DE2610028C3 (de) * 1976-03-10 1979-09-27 Windmoeller & Hoelscher, 4540 Lengerich Von Tiefdruck auf Flexodruck und umgekehrt umrüstbare Druckmaschine
DE2635226C2 (de) * 1976-08-05 1985-09-19 Schering AG, 1000 Berlin und 4709 Bergkamen Druckverfahren und dafür geeignete Schmelzdruckfarben
US4152986A (en) * 1976-12-03 1979-05-08 Dadowski Gilbert F Method and apparatus for printing raised ink images
FR2447342A1 (fr) * 1979-01-29 1980-08-22 Corbin Jean Installation notamment pour l'impression par cylindres graves de colles thermofusibles
US4292104A (en) * 1979-09-13 1981-09-29 Corning Glass Works Decalcomania manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224033A3 (en) * 1985-11-23 1989-05-10 Koenig & Bauer Aktiengesellschaft Short-inking device for a rotary offset printing press
EP0402942A3 (fr) * 1989-06-16 1991-12-18 Dai Nippon Insatsu Kabushiki Kaisha Méthode d'impression de motifs fins
FR2652038A1 (fr) * 1989-09-20 1991-03-22 France Etat Machine d'impression, notamment sur papier, et de sechage de l'impression, encre correspondante, et procede de fabrication d'une telle encre.
EP0419389A1 (fr) * 1989-09-20 1991-03-27 La Poste Machine d'impression, notamment sur papier, et de séchage de l'impression, encre correspondante, et procédé de fabrication d'une telle encre
WO1996014211A1 (fr) * 1994-11-02 1996-05-17 Druckfarbenfabrik Gebr. Schmidt Gmbh Procede d'impression

Also Published As

Publication number Publication date
JPS57163594A (en) 1982-10-07
ES508777A0 (es) 1983-01-01
EP0056623A3 (en) 1982-09-01
DK150102C (da) 1987-06-15
DE3101243C2 (de) 1983-10-13
DE3101243A1 (de) 1982-07-29
US4627346A (en) 1986-12-09
DK150102B (da) 1986-12-08
ES8301772A1 (es) 1983-01-01
EP0056623B1 (fr) 1985-05-08
DK17482A (da) 1982-07-17
ATE13158T1 (de) 1985-05-15

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