EP0482143A1 - Procede de commande de l'encrage dans la rotogravure et la flexographie - Google Patents

Procede de commande de l'encrage dans la rotogravure et la flexographie

Info

Publication number
EP0482143A1
EP0482143A1 EP19910907716 EP91907716A EP0482143A1 EP 0482143 A1 EP0482143 A1 EP 0482143A1 EP 19910907716 EP19910907716 EP 19910907716 EP 91907716 A EP91907716 A EP 91907716A EP 0482143 A1 EP0482143 A1 EP 0482143A1
Authority
EP
European Patent Office
Prior art keywords
viscosity
color
eta
printing
coloring
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.)
Withdrawn
Application number
EP19910907716
Other languages
German (de)
English (en)
Inventor
Tino Dr. Celio
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.)
CELIO ENGINEERING SA
Original Assignee
CELIO ENGINEERING SA
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 CELIO ENGINEERING SA filed Critical CELIO ENGINEERING SA
Publication of EP0482143A1 publication Critical patent/EP0482143A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/005—Ink viscosity control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices

Definitions

  • the invention relates to a method for controlling the coloring in gravure and flexographic printing, a mixture of at most three liquid or semi-liquid basic components (color F, blend V, solvent L) being used for the coloring, which is offered by hand or by means of metering devices of the printing form becomes.
  • the third component, the solvent L is generally supplied via a control circuit, which creates a constant viscosity of the pressure mixture.
  • a certain addition of L at every dosage of F and V can also be done to reduce the dynamics of the visco regulator. If the viscosity is too low, lubrication and pearls drip off full tones), if the viscosity is too high, it results in poor expression (stuttering pastel tones). This parameter is adjusted by the surgeon (usually as a function of paper quality and printing speed) in such a way that he achieves good color deposition on the paper corresponding to the pressure.
  • the invention is based on the mixture of ink F, blend V and solvent L customary for inking the printing form and, as with only two variables, namely concentration and viscosity, shows clear control of the coloring, ie. the determination of the basic components F, V, L to be metered is possible.
  • Concentration c is a direct measure of the color strength of the mixture and therefore a direct, albeit non-linear, measure of print density.
  • viscosity is a measure of the rheological process (ink deposition, well emptying) of the respective printing process.
  • the effect of the visor controller 6 (which is programmed in accordance with the desired setpoint eta (F + V + L)) is now limited to compensating for the inevitable evaporation of the solvent during the printing process (and possibly during the printing pauses).
  • a special version of the method according to the invention relates to 2-component printing, in which only one ready-mixed ink F and solvent L are printed. No waste V is used.
  • the method according to the invention creates a quantitative basis for the first time.
  • the metering quantities F and L are determined and at the same time the resulting viscosity eta is calculated, which is offered to the operator for monitoring. If the specified tolerance limits are exceeded, an alarm can be triggered.
  • Example 1 relates to the mixture of a cyan color for 3-component illustration printing.
  • Example 2 relates to the mixture of a yellow color for two-component packaging printing.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

On décrit un procédé permettant d'obtenir avec seulement 2 paramètres, à savoir concentration et viscosité, la commande univoque des trois composants typiques pour la rotogravure (couleur, diluant et solvant). Selon une variante, ce procédé peut être mis en oeuvre également pour la commande des deux composants typiques (couleur et solvant) pour l'impression d'emballages (rotogravure et flexographie).
EP19910907716 1990-05-01 1991-05-01 Procede de commande de l'encrage dans la rotogravure et la flexographie Withdrawn EP0482143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH147490 1990-05-01
CH1474/90 1990-05-01

Publications (1)

Publication Number Publication Date
EP0482143A1 true EP0482143A1 (fr) 1992-04-29

Family

ID=4211333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910907716 Withdrawn EP0482143A1 (fr) 1990-05-01 1991-05-01 Procede de commande de l'encrage dans la rotogravure et la flexographie

Country Status (2)

Country Link
EP (1) EP0482143A1 (fr)
WO (1) WO1991017050A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701573A1 (de) * 1997-01-17 1998-07-23 Badower Yakob Verfahren zum Regeln der Zusammensetzung und der Viskosität von Druckfarbe
DE19746268A1 (de) * 1997-10-20 1999-04-22 Giesecke & Devrient Gmbh Verfahren und Vorrichtung zur Herstellung eines Folienmaterials
ES2371606B1 (es) * 2009-08-13 2012-11-22 Comexi, S.A. Dispositivo y método de impresión usando tintas curables por energía para impresora flexográfica

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH622632A5 (en) * 1977-05-24 1981-04-15 Celio Tino Metering apparatus for two free-flowing media.
DE3007421A1 (de) * 1980-02-27 1981-09-03 Windmöller & Hölscher, 4540 Lengerich Verfahren zur herstellung eines vorlagengetreuen farbengemisches, insbesondere einer farbe eines mehrfarbendruckes
CH653618A5 (fr) * 1983-06-21 1986-01-15 Bobst Sa Procede et dispositif pour maintenir constante la densite d'une couleur imprimee.
NL8600554A (nl) * 1986-01-22 1987-08-17 Sublistatic Int Automatische werkwijze voor de bereiding van drukinkten.
DE3602309A1 (de) * 1986-01-27 1987-07-30 Schmidt Gebr Druckfarben Geraet mit viskositaets-istwert- und einstellbarer -sollwert-anzeige zur bestimmung der verduennbarkeit von viskosen zubereitungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9117050A1 *

Also Published As

Publication number Publication date
WO1991017050A1 (fr) 1991-11-14

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