EP3789200B1 - Procédé de revêtement et d'estampage dans une machine à imprimer - Google Patents

Procédé de revêtement et d'estampage dans une machine à imprimer Download PDF

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Publication number
EP3789200B1
EP3789200B1 EP19195536.8A EP19195536A EP3789200B1 EP 3789200 B1 EP3789200 B1 EP 3789200B1 EP 19195536 A EP19195536 A EP 19195536A EP 3789200 B1 EP3789200 B1 EP 3789200B1
Authority
EP
European Patent Office
Prior art keywords
fluid
printing
embossing
coated
printing material
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.)
Active
Application number
EP19195536.8A
Other languages
German (de)
English (en)
Other versions
EP3789200A1 (fr
Inventor
Martin Schmitt-Lewen
Thomas Steigleder
Mark Faßl
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to EP19195536.8A priority Critical patent/EP3789200B1/fr
Priority to CN202010606521.7A priority patent/CN112440553B/zh
Publication of EP3789200A1 publication Critical patent/EP3789200A1/fr
Application granted granted Critical
Publication of EP3789200B1 publication Critical patent/EP3789200B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062—Presses of the rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/045—Drying sheets, e.g. between two printing stations by radiation
    • B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints
    • 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
    • B41M1/24—Inking and printing with a printer's forme combined with embossing

Definitions

  • the present invention relates to a method for coating and embossing in a printing machine, wherein in a first step a printing material is coated with a first fluid, in a second step a relief is embossed in the first fluid on the printing material by means of an embossing form and in a third step the first fluid is polymerized on the printing substrate by UV radiation in order to harden the relief.
  • EP 2 216 174 A2 describes a process in which the substrate is coated with a UV varnish in a first gap, then in a second gap it is embossed into the as yet unpolymerized varnish layer on the surface of the printing substrate, and the varnish layer is then polymerized.
  • the object of the invention is to specify a method with higher functional reliability.
  • the object is achieved by a method for coating and embossing in a printing machine, wherein in a first step a printing material is coated with a first fluid, in a second step a relief is embossed in the first fluid on the printing material by means of an embossing form and in a third step, the first fluid is polymerized on the printing substrate by UV radiation in order to harden the relief, characterized in that a fluid with a viscosity in the range from 40 Pascal seconds to 100 Pascal seconds is used as the first fluid.
  • the relief made therefrom has a high degree of dimensional stability which is reliably retained until the relief has hardened.
  • the use of a circulatory system in which the first fluid circulates and a chambered doctor blade for supplying the first fluid is not possible because of its high viscosity and is not provided for in the method according to the invention.
  • the first fluid for. B. be stored in a paint box or in a paint tray.
  • the second fluid can be polymerized on the printing substrate by means of UV radiation.
  • the second fluid can be polymerized by UV irradiation between the fourth step and the first step.
  • the second fluid can be coated with the first fluid wet-on-wet.
  • the printing substrate can be coated with a third fluid, which can have a viscosity in the range from 40 Pascal seconds to 100 Pascal seconds, or the printing substrate can be coated a further time with the second fluid.
  • An oil-based ink can be used as the second fluid.
  • the second fluid can be coated on the printing substrate with a water-based primer.
  • the first fluid can be printed by means of an offset printing unit.
  • the first fluid can be printed using a flexographic printing forme.
  • This flexographic printing form can, for example, be mounted on the blanket cylinder of the offset printing unit instead of a rubber blanket.
  • the first fluid can be pre-hardened between the first step and the second step.
  • a separating fluid can be applied to the embossing mold, which at least reduces or even completely prevents the first fluid from sticking to the embossing mold.
  • a lithographic offset fountain solution can be used as the release fluid.
  • the dampening solution is used for a different purpose than it is normally intended.
  • Figure 1 shows schematically a method in which in the transport direction 10 a printing material 2 runs through a printing machine 1, which is made of paper, cardboard or foil and can be in the form of a sheet or a web.
  • the printing press 1 comprises units arranged one after the other in a series construction for various process steps, which will be explained below.
  • Figure 2 shows that, as a result of the method, the printing substrate 2 is coated with a first fluid 11 and a second fluid 12 and a relief 4 is provided in the first fluid 11.
  • the first fluid 11 is applied to the printing material 2 with a viscosity in the range from 40 to 100 Pascal seconds.
  • the relief 4 is embossed into the applied first fluid 11 by means of an embossing form 3, for example in a converted coating unit.
  • One advantage is that, due to the comparatively high viscosity, the relief 4 does not run until it has hardened through in a third step 103 by UV irradiation from a dryer 14 will.
  • the offset printing unit 7 can have a lifter inking unit.
  • the first fluid 11 can be a UV varnish.
  • the offset printing unit 7 can have an anilox inking unit.
  • a flexographic printing forme 8 can be clamped on the blanket cylinder of the offset printing unit 7 and / or the first fluid 11 can be a UV varnish.
  • the printing material 2 is coated with the second fluid 12 in a fourth step 104 before the first step 101.
  • an offset printing unit can be used for printing the second fluid 12.
  • the second fluid 12 is a UV printing ink
  • the second fluid 12 can be cured on the printing material 2 by UV irradiation 5 from a dryer.
  • the UV irradiation 5 can be omitted, the first fluid 11 being printed onto the still wet (uncured) second fluid 12.
  • Figure 3 shows the result of a modification of the method.
  • the third fluid 13 has a viscosity in the range from 40 to 100 Pascal seconds when it is printed with an offset printing unit (graphically not shown), which is arranged between the offset printing unit for the fourth step 104 and the offset printing unit 7.
  • the third fluid 13 may or may not be identical to the second fluid 12.
  • Figure 4 shows the printing material 2 after it has left the printing press 1. This further modification differs from the method described in relation to the result according to FIG Figure 3 has led.
  • the second fluid 12 is not a UV printing ink, but an oil-based printing ink.
  • a water-based primer 6 or another oil-based printing ink can be used.
  • a UV dryer is arranged between the offset printing unit 7 and the converted coating unit (embossing unit), with which the first fluid 11 is pre-cured before the relief 4 is produced with the embossing form 3.
  • Figure 5 shows that a separating fluid 9 - for example a dampening solution that is otherwise used for the lithographic offset printing process - is applied to the embossing form 3.
  • the advantage of using the dampening solution is that no expensive special production is required for the release fluid and the dampening solution is available on the market at low cost.
  • the separating fluid 9 causes the first fluid 11 with the relief 4 to be better detached from the embossing form 3, thereby advantageously avoiding contamination of the embossing form 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printing Methods (AREA)

Claims (13)

  1. Procédé d'enduction et de gaufrage dans une machine à imprimer (1), pour lequel
    - dans une première étape (101) un support d'impression (2) est enduit d'un premier fluide (11) ,
    - dans une deuxième étape (102), un relief (4) est gaufré dans le premier fluide (11) sur le support d'impression (2) au moyen d'une matrice de gaufrage (3), et
    - dans une troisième étape (103), le premier fluide (11) est polymérisé sur le support d'impression (2) par irradiation UV (5) afin de durcir le relief (4),
    caractérisé en ce
    qu'un fluide ayant une viscosité comprise entre 40 à 100 pascals-secondes est utilisé comme premier fluide (11).
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que dans une quatrième étape (104), qui a lieu avant la première étape (101), le support d'impression (2) est enduit d'un second fluide (12).
  3. Procédé selon la revendication 2,
    caractérisé en ce
    que le second fluide (12) est polymérisé sur le support d'impression (2) par irradiation UV (5).
  4. Procédé selon la revendication 2 ou 3,
    caractérisé en ce
    qu'entre la quatrième étape (104) et la première étape (101), le second fluide (12) est polymérisé par irradiation UV (5).
  5. Procédé selon la revendication 2 ou 3,
    caractérisé en ce
    que, dans la première étape (101), une enduction humide sur humide du second fluide (12) avec le premier fluide (11) est effectuée.
  6. Procédé selon l'une des revendications 2 à 5,
    caractérisé en ce
    qu'entre la quatrième étape (104) et la première étape (101), le support d'impression (2) est enduit d'un troisième fluide (13) ayant une viscosité se situant entre 40 et 100 pascals-secondes, ou est enduit encore une fois avec le deuxième fluide (12).
  7. Procédé selon l'une des revendications 2 à 6,
    caractérisé en ce
    qu'une encre à base d'huile est utilisée comme deuxième fluide (12).
  8. Procédé selon la revendication 7,
    caractérisé en ce
    qu'entre la quatrième étape (104) et la première étape (101), le deuxième fluide (12) est enduit sur le support d'impression (2) avec un apprêt à base d'eau (6).
  9. Procédé selon l'une des revendications 1 à 8,
    caractérisé en ce
    que dans la première étape, le premier fluide (11) est imprimé au moyen d'un groupe d'impression offset (7).
  10. Procédé selon l'une des revendications 1 à 8,
    caractérisé en ce
    que dans la première étape, le premier fluide (11) est imprimé au moyen d'une matrice d'impression flexographique (8).
  11. Procédé selon la revendication 10,
    caractérisé en ce
    qu'entre la première étape (101) et la deuxième étape (102), le premier fluide (11) est prédurci.
  12. Procédé selon l'une des revendications 1 à 11,
    caractérisé en ce
    que, durant la dexième étape (102), il y a application sur la matrice de gaufrage (9) d'un fluide de séparation (9) qui réduit l'adhérence du premier fluide (11) à la matrice de gaufrage (3).
  13. Procédé selon la revendication 12,
    caractérisé en ce
    que le fluide de séparation (9) utilisé est une solution de mouillage offset lithograpique.
EP19195536.8A 2019-09-05 2019-09-05 Procédé de revêtement et d'estampage dans une machine à imprimer Active EP3789200B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19195536.8A EP3789200B1 (fr) 2019-09-05 2019-09-05 Procédé de revêtement et d'estampage dans une machine à imprimer
CN202010606521.7A CN112440553B (zh) 2019-09-05 2020-06-29 用于在印刷机中涂覆及压印的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19195536.8A EP3789200B1 (fr) 2019-09-05 2019-09-05 Procédé de revêtement et d'estampage dans une machine à imprimer

Publications (2)

Publication Number Publication Date
EP3789200A1 EP3789200A1 (fr) 2021-03-10
EP3789200B1 true EP3789200B1 (fr) 2021-08-11

Family

ID=67874294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19195536.8A Active EP3789200B1 (fr) 2019-09-05 2019-09-05 Procédé de revêtement et d'estampage dans une machine à imprimer

Country Status (2)

Country Link
EP (1) EP3789200B1 (fr)
CN (1) CN112440553B (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015474A1 (de) * 2006-03-31 2007-10-04 Heidelberger Druckmaschinen Ag Folientransferwerk mit integrierter Weiterverarbeitungseinrichtung
DE102009000445A1 (de) 2009-01-28 2010-08-05 Manroland Ag Verfahren und Vorrichtung zum Beschichten und Prägen eines Bedruckstoffes in einer Verarbeitungsmaschine
EP2724864B1 (fr) * 2012-10-24 2018-12-26 Heidelberger Druckmaschinen AG Procédé et dispositif de génération et de transmission de microstructures diffractives sur une matière d'impression
CN106626844B (zh) * 2016-11-22 2019-02-26 深圳劲嘉集团股份有限公司 一种用于承印物表面效果处理的胶印生产工艺
CN108045120A (zh) * 2017-10-30 2018-05-18 虎彩印艺股份有限公司 一种胶印连线冷烫工艺及设备

Also Published As

Publication number Publication date
EP3789200A1 (fr) 2021-03-10
CN112440553B (zh) 2022-04-12
CN112440553A (zh) 2021-03-05

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