EP0445661B1 - Rouleau de transfert d'encre - Google Patents

Rouleau de transfert d'encre Download PDF

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Publication number
EP0445661B1
EP0445661B1 EP91103062A EP91103062A EP0445661B1 EP 0445661 B1 EP0445661 B1 EP 0445661B1 EP 91103062 A EP91103062 A EP 91103062A EP 91103062 A EP91103062 A EP 91103062A EP 0445661 B1 EP0445661 B1 EP 0445661B1
Authority
EP
European Patent Office
Prior art keywords
printing
different
inking roller
ink transfer
surface regions
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.)
Revoked
Application number
EP91103062A
Other languages
German (de)
English (en)
Other versions
EP0445661A1 (fr
Inventor
Kurt Zecher
Franz-Josef Driller
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.)
Kurt Zecher GmbH
Original Assignee
Kurt Zecher 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6401591&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0445661(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kurt Zecher GmbH filed Critical Kurt Zecher GmbH
Publication of EP0445661A1 publication Critical patent/EP0445661A1/fr
Application granted granted Critical
Publication of EP0445661B1 publication Critical patent/EP0445661B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B41F31/26—Construction of inking rollers
    • 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
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers

Definitions

  • the invention relates to an ink transfer roller of a multicolor printing machine with printing units according to the preamble of claim 1.
  • doctor rollers which can be placed on a scoop roller in a coating device on printing presses, by means of which a downstream metering roller is selectively supplied with paint, from which a metered amount of lacquer is applied by means of a doctor blade.
  • This arrangement allows the paint to be applied in a certain thickness on an adjustable format width.
  • the device is not suitable for an ink application with different ink density.
  • the aim is to cover the entire surface as evenly as possible with depressions, so that when used in a printing device the most uniform possible color saturation of the prints of the associated printing forms is achieved on the printed printing material.
  • the surface areas of different ink capacities are arranged axially on the ink transfer roller, in each case as surface sections next to one another, adjoining one another.
  • the assigned printing form is then designed in such a way that areas that require lean coloring are each assigned to one of the surface areas that has the lower color capacity and those areas that require rich coloring. are each assigned to one of the surface areas with the higher color capacity.
  • transition between the areas of different color capacity can be carried out abruptly from one circumferential line to the next, or a transition area can be designed with a constant increase or decrease in color capacity with a width suitable for an intended application.
  • already existing printing forms can be printed in a new effect design by varying the saturation of the different colors and shadows in a simple manner, namely by suitable selection of the ink transfer rollers.
  • the different surface areas can advantageously be designed as a security pattern, which can be introduced into the surface, for example, by a predetermined electronic control sequence of a burn-in laser.
  • This security pattern overlays the print. It is practically impossible to fake.
  • a close look at his Presence is easily possible with a magnifying glass by examining and assessing the individual color grid points with one another with regard to their relative size and according to their arrangement and the type of security pattern that they form.
  • the individual colors can advantageously be applied with different security patterns by different rollers to increase security.
  • an ink transfer roller 1 is shown schematically, the ink is supplied from an ink supply or doctor chamber 32 and which transfers the ink on a printing form B, which is mounted on a forme cylinder 31, in a surface line contact.
  • the form cylinder 31 transfers this color to a printing material 2, the partially wraps around a printing cylinder 30 and further inking units, which are not shown, are arranged around its circumference.
  • the ink transfer roller 1 has axially different surface areas 10, 11; 12, 13, which have different capacities for receiving the color.
  • the surface areas 11, 12 with low capacity are assigned to those shape areas that each touch less to be saturated fields B1, B3, for example image fields, and those surface areas 10, 13 with high capacity are assigned to the shape areas of fields B0, B3, each are highly saturated with color and contain, for example, color bars and fields, ie full areas.
  • imprints 21, 23, 20, 22 are carried out on the printing substrate 2 each in a more or less high color saturation, ie with a low or high color density.
  • the illustration shows a printing form, each with the same use in the same orientation next to each other, so that the ink transfer roller 1 accordingly has two sections of high and two sections of smaller capacity alternately.
  • the printing benefits are, for example, self-adhesive labels made of high-quality glossy paper, which are held releasably on a carrier tape.
  • FIG. 2 shows a plan view of the adjoining two surface areas 10, 11 of the ink transfer roller 1.
  • the cups 40, 41 in the two surface areas 10, 11 are arranged in the same grid, which is designed with a row-like offset.
  • Cross sections and widths W0, W1 of the cups 40, 41 are different, so that the ratio of the webs to the cups 40, 41 is also different for the same grid dimension.
  • the ink transfer capacities of the surface regions 10, 11 are different.
  • FIG. 3 shows that depths T0, T1 of the wells 40, 41 are also different, so that the different capacities for the amounts of ink to be transferred also result accordingly in terms of area.
  • the configurations of the cups 40, 41 shown in FIGS. 2 and 3 correspond to embossments with a truncated pyramid with different impulses and different energies.
  • the width W0, W1 and the depth T0, T1 of the cells can be changed by suitably reversing the focusing of the beam and / or the intensity of the laser pulses.
  • the grid spacing A0, A1 of the cells can be changed in a simple manner by controlling the pulse repetition frequency of the laser.
  • the left and right image areas are each shown cut in the circumferential direction. All of these variations in the shape of the cells influence the color saturation and / or the color effect, so that the most varied of desired printing configurations can also be produced in the interaction of different colors.
  • FIG. 4 shows a depth section of a first laser L0 with a large width WO and a second laser L1 with a small width W1 but the same depth TO, T1.
  • the roller produces approximately the same ink transfer ratio of the two areas until the end of the service life, which is determined by the depth TO, T1, in the event of wear occurring during use.
  • the cells are one in the ceramic coating Branded metal roller M.
  • Narrow cells L1 are introduced with a smaller grid spacing A1 than wide cells L0.
  • FIG. 5 shows an enlarged top view of a surface section of a security ink transfer roller.
  • the different surface areas BB, BG of different wells 40, 41 are nested one inside the other as security patterns in a small space.
  • the design of the letters DB in the pattern is selected as an example for a stamp printing, the surface area BB having a larger color capacity than the surface area BG being designed as the basic area.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Ink Jet (AREA)
  • Liquid Developers In Electrophotography (AREA)

Claims (5)

  1. Rouleau de transfert d'encre pour une machine d'impression en plusieurs couleurs avec plusieurs mécanismes encreurs qui présentnt chacun un cylindre portant une forme d'impression avec rouleau de transfert d'encre 1 , à l'aide , dans la surface duquel des godets (40, 41), disposés dans un réseau, sont pratiqués,
    caractérisé en ce que
    le rouleau de transfert d'encre (1) présente au moins deux zones de surface (10, 11, 12, 13, BB, BG), dont les godets (40, 41) sont de différentes capacités.
  2. Rouleau de transfert d'encre selon la revendication 1,
    caractérisé en ce que
    les zones de surface (10, 11, 12, 13) sont des secteurs de surfaces axialement contigus, de différentes capacités.
  3. Rouleau de transfert d'encre (1) selon la revendication 1,
    caractérisé en ce que,
    les zones de surface (BB, BG) de différentes capacités sont conçus sous forme de clichés de sécurité de sorte que les cavités d'un genre forment un motif prédéterminé entre les cavités de l'autre genre.
  4. Rouleau de transfert d'encre selon la revendication 1,
    caractérisé en ce que
    les godets (40, 41; L1, L0) des zones de surface (10, 11, 12, 13; BB, BG) présentent des largeurs différentes (W0, W1), des profondeurs différentes (T0, T1) et/ou des intervalles de réseau différents (A0, A1).
  5. Machine à imprimer en plusieurs couleurs avec au moins un rouleau de transfert d'encre (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    les godets (40, 41; L1, L0) des différentes zones de surface (10, 11, 12, 13) sont brûlés en profondeur dans la surface (10, 11) à l'aide d'un dispositif à laser et présentent différentes largeurs différentes, mais à peu près la même profondeur.
EP91103062A 1990-03-07 1991-03-01 Rouleau de transfert d'encre Revoked EP0445661B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007130A DE4007130C1 (fr) 1990-03-07 1990-03-07
DE4007130 1990-03-07

Publications (2)

Publication Number Publication Date
EP0445661A1 EP0445661A1 (fr) 1991-09-11
EP0445661B1 true EP0445661B1 (fr) 1994-07-13

Family

ID=6401591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103062A Revoked EP0445661B1 (fr) 1990-03-07 1991-03-01 Rouleau de transfert d'encre

Country Status (4)

Country Link
EP (1) EP0445661B1 (fr)
AT (1) ATE108370T1 (fr)
DE (2) DE4007130C1 (fr)
DK (1) DK0445661T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426485C1 (de) 1994-07-26 1995-11-30 Zecher Gmbh Kurt Farbübertragungswalze mit austauschbarem Bezug
DE19516032C2 (de) * 1995-05-04 2001-03-01 Zecher Gmbh Kurt Verfahren zur Oberflächenveredelung einer Farbübertragungswalze durch Ionenimplantation
EP1198350A2 (fr) * 1999-07-28 2002-04-24 Koenig & Bauer Aktiengesellschaft Unite d'application de vernis
AT504724B1 (de) * 2005-05-13 2011-01-15 Oebs Gmbh Schablonplatte
DE102006031682A1 (de) * 2006-07-08 2008-01-10 Man Roland Druckmaschinen Ag Flexodruckrasterwalze und Flexodruckverfahren
DE202009005879U1 (de) 2009-04-22 2009-07-02 Kurt Zecher Gmbh Farbübertragungswalze für Druckmaschinen
DE102010019468A1 (de) * 2010-05-05 2011-11-10 Giesecke & Devrient Gmbh Flexodruckwerk, Flexodruckverfahren und daraus erhältliches Druckerzeugnis
DE102015015377A1 (de) * 2015-11-27 2017-06-01 Giesecke & Devrient Gmbh Rasterwalze für eine Flexodruckmaschine
DE102018206734A1 (de) * 2018-05-02 2019-11-28 Koenig & Bauer Ag Druckprodukt, ein Verfahren zum Erzeugen eines Druckprodukts, ein Formzylinder und eine Druckmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429702A (en) * 1963-06-19 1969-02-25 Leslie Howard Lorber Process of producing multicolor utilizing a single printing plate
US3752073A (en) * 1971-04-26 1973-08-14 Bernard Olcott Atlantic Highla Process for single-impression multicolor printing
DE2161331B2 (de) * 1971-12-10 1980-05-29 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Fa rbwerk für Offsetrotations-Druckmaschinen
DE3046257C2 (de) * 1980-12-08 1984-02-16 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Lackiereinrichtung an Druckmaschinen
DE3336374C2 (de) * 1983-10-06 1986-12-18 Kurt Zecher GmbH, 4790 Paderborn Verfahren zur Herstellung der Oberfläche einer Farbübertragungswalze
DE8710726U1 (fr) * 1987-08-05 1987-10-15 Sauer Druckwalzenfabriken Gmbh & Co Kg, 3005 Hemmingen, De
DE3744131A1 (de) * 1987-12-24 1989-07-06 Frankenthal Ag Albert Rasterwalze fuer ein offsetfarbwerk sowie verfahren zur herstellung einer derartigen rasterwalze

Also Published As

Publication number Publication date
ATE108370T1 (de) 1994-07-15
EP0445661A1 (fr) 1991-09-11
DK0445661T3 (da) 1994-10-31
DE4007130C1 (fr) 1991-06-27
DE59102136D1 (de) 1994-08-18

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