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EP0056623B1 - 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
EP0056623B1
EP0056623B1 EP82100242A EP82100242A EP0056623B1 EP 0056623 B1 EP0056623 B1 EP 0056623B1 EP 82100242 A EP82100242 A EP 82100242A EP 82100242 A EP82100242 A EP 82100242A EP 0056623 B1 EP0056623 B1 EP 0056623B1
Authority
EP
European Patent Office
Prior art keywords
ink
printing
heated
gravure
printing process
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.)
Expired
Application number
EP82100242A
Other languages
German (de)
English (en)
Other versions
EP0056623A3 (en
EP0056623A2 (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 flexographic or indirect gravure printing process.
  • 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 highly volatile solvents with difficult-to-evaporate liquid media, e.g. B. water.
  • the invention is based on the object of designing a rotary flexographic or indirect gravure printing process in such a way that, despite the high printing speed, a sharp-contoured, dimensionally stable dot with as little dot gain as possible is obtained on the printing medium.
  • a paint with a low proportion of liquid components can be used in this process.
  • the solvent contained in the ink is at least partially evaporated. This makes the paint more viscous, but this effect is partially compensated for by the heating of the solid content in the paint.
  • the printing ink is heated in the grid cells, this effect is further compensated for by the fact that the solvent expelled by the heating presses against the wall of the grid cells and promotes the removal of the ink, so that the emptying of the grid cells is not impaired overall.
  • the subsequent cooling of the color when transferred to the print medium the ink droplets contracts, with a very sharp grid p oint achieved due to reduced solvent content.
  • the dot gain can be reduced to a minimum, so that it is possible to work with a screen fineness that is not possible in flexographic and indirect gravure printing.
  • a further advantage of the process according to the invention is that, instead of volatile solvents, it is possible to use liquid media which are difficult to evaporate in the paint composition and which, moreover, can be non-flammable or hardly flammable.
  • liquid media which are difficult to evaporate in the paint composition and which, moreover, can be non-flammable or hardly flammable.
  • water colors can be used in the printing process, with the heating of the printing ink during the printing process at least partially evaporating the liquid components, so that a relatively dry ink gets onto the print medium, while in the previous distribution process sufficient liquid components in the color are included, which ensure easy filling and emptying of the grid cells. This also promotes drying of the finished print.
  • 1 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 wells 11 (FIG. 3) are formed, 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 same process takes place in the indirect gravure printing method according to FIG. 2 on the cylinder 3, which is at least partially provided with raster cups and is referred to below as an anilox roller.
  • ink droplets 12 located in the wells 11 must be transferred to a printing plate 6 mounted on a printing plate cylinder 5, from which the printing ink is transferred directly to the printing medium 8.
  • ink droplets 12 similar to flexographic printing, are first transferred from the cups 11 of the anilox roller 3 to the transfer cylinder 5 ', which applies them to the print carrier 8. 7 in the figures is an impression cylinder.
  • 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 bearing surfaces on the walls of a cup 11 to such an extent that the droplet 12 easily and completely detaches from the cup when the surface 13 of the Droplet comes into contact with the 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 a double-jacket roller or hollow cylinder 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 which z. B. is 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.
  • axially extending electrical heating elements 16 are arranged, which are controlled by temperature sensors, not shown.
  • the ink droplets 12 located in the etched cells 11 are supplied with heat by the heated surface of the roller, whereby the viscosity of the solids content of the ink droplets is reduced while liquid components of the ink 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, sharp-edged single points transferred with little growth are achieved with a low content of liquid components that are still to be removed.
  • the cooling of the paint droplets on the cylinders 5 can be accelerated by additional cooling, for example by blowing the cylinders 5 with cooling air. However, it is also possible to keep the cylinders 5 at a correspondingly low surface temperature by means of a cooling medium flowing through the cylinders.
  • 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, then part of the liquid components is evaporated by the supply of heat , while at the same time the solids content becomes more liquid due to the heat supply.
  • this is a reversible effect 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 here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Pens And Brushes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • External Artificial Organs (AREA)
  • Ink Jet (AREA)
  • Rotary Presses (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Threshing Machine Elements (AREA)
  • Vending Machines For Individual Products (AREA)

Claims (4)

1. Procédé rotatif de flexographie ou procédé rotatif d'héliogravure indirecte, caractérisé en ce que ce n'est que lors de l'introduction dans les alvéoles de trame du cylindre tramé ou du cylindre d'héliogravure que l'on chauffe l'encre d'impression contenant un solvant, pour chasser au moins partiellement le solvant, puis qu'on la transfère sur le support d'impression, ce à l'occasion de quoi on laisse l'encre d'impression refroidir lors du transfert.
2. Procédé selon la revendication 1, caractérisé en ce que de la chaleur est amenée à l'encre d'impression par chauffage du cylindre tramé ou du cylindre d'héliogravure.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que de la chaleur est amenée à l'encre d'impression par exposition à un rayonnement extérieur.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'on utilise un équipement de refroidissement pour refroidier l'encre d'impression lors du transfert sur le support d'impression.
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
DE3101243 1981-01-16
DE3101243A DE3101243C2 (de) 1981-01-16 1981-01-16 Rotatives Flexo- bzw. indirektes Tiefdruckverfahren, sowie Vorrichtung zur Durchführung des Verfahrens

Publications (3)

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

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541458A1 (de) * 1985-11-23 1987-05-27 Koenig & Bauer Ag Kurzfarbwerk fuer offsetrotationsdruckmaschinen
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
KR0153260B1 (ko) * 1989-06-16 1998-11-02 기다지마 요시도시 미세패턴의 인쇄방법
FR2652038B1 (fr) * 1989-09-20 1995-10-27 France Etat Machine d'impression, notamment sur papier, et de sechage de l'impression, encre correspondante, et procede de fabrication d'une telle encre.
JPH03159781A (ja) * 1989-11-17 1991-07-09 Matsushita Electric Ind Co Ltd 印刷方法および印刷装置
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
DE4205713C2 (de) * 1992-02-25 1994-08-04 Siegwerk Druckfarben Gmbh & Co Druckfarbe, Verfahren zu ihrer Herstellung und deren Verwendung
DE4413731C2 (de) * 1994-04-20 1998-07-02 Heidelberger Druckmasch Ag Verfahren zur Steuerung der Temperatur der Druckfarbe in einer Druckmaschine
DE4413736C2 (de) * 1994-04-20 1997-12-18 Heidelberger Druckmasch Ag Verfahren zur Kontrolle der Abnutzung einer Druckform in einer Druckmaschine
DE59405497D1 (de) * 1994-04-20 1998-04-23 Oce Printing Systems Gmbh Thermoelektrisches druckwerk zur übertragung einer tinte auf einen aufzeichnungsträger
DE4439007C2 (de) * 1994-11-02 1997-04-30 Schmidt Gebr Druckfarben Druckverfahren
DE19527889C2 (de) * 1995-07-29 1997-07-17 Koenig & Bauer Albert Ag Kurzfarbwerk zum Einfärben einer Flachdruckplatte
DE50001287D1 (de) * 1999-06-30 2003-03-27 Oce Printing Systems Gmbh Verfahren und druckvorrichtung zum übertragen von druckflüssigkeit auf ein trägermäterial, sowie zugehörige druckwalze
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
CN102858541B (zh) * 2010-03-31 2015-11-25 凸版印刷株式会社 凸版印刷装置，使用其的印刷物和有机电致发光元件制造方法
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

Also Published As

Publication number Publication date
DK150102B (da) 1986-12-08
ES508777A0 (es) 1983-01-01
JPS57163594A (en) 1982-10-07
EP0056623A3 (en) 1982-09-01
ATE13158T1 (de) 1985-05-15
DE3101243C2 (de) 1983-10-13
DK17482A (da) 1982-07-17
DK150102C (da) 1987-06-15
US4627346A (en) 1986-12-09
DE3101243A1 (de) 1982-07-29
EP0056623A2 (fr) 1982-07-28
ES8301772A1 (es) 1983-01-01

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