EP2319703B2 - Procédé d'application tramées de fluides sur des substrats - Google Patents

Procédé d'application tramées de fluides sur des substrats Download PDF

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Publication number
EP2319703B2
EP2319703B2 EP10186785.1A EP10186785A EP2319703B2 EP 2319703 B2 EP2319703 B2 EP 2319703B2 EP 10186785 A EP10186785 A EP 10186785A EP 2319703 B2 EP2319703 B2 EP 2319703B2
Authority
EP
European Patent Office
Prior art keywords
fluid
image
substrate
halftone
section
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
EP10186785.1A
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German (de)
English (en)
Other versions
EP2319703A2 (fr
EP2319703A3 (fr
EP2319703B1 (fr
Inventor
Martin Dr. Schmitt-Lewen
Joachim Sonnenschein
Evgeny Kurmakaev
Martin Haas
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 Intellectual Property AG and Co KG
Original Assignee
Heidelberger Druckmaschinen Intellectual Property AG and Co KG
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Publication date
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Application filed by Heidelberger Druckmaschinen Intellectual Property AG and Co KG filed Critical Heidelberger Druckmaschinen Intellectual Property AG and Co KG
Publication of EP2319703A2 publication Critical patent/EP2319703A2/fr
Publication of EP2319703A3 publication Critical patent/EP2319703A3/fr
Publication of EP2319703B1 publication Critical patent/EP2319703B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/008—Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts

Definitions

  • the present invention relates to a method having the features of claim 1.
  • the products which are preferably produced using offset printing, can be further optically refined, e.g. by so-called spot coatings. Furthermore, it is also already known to upgrade the products functionally, e.g. by applying lenticular foils to produce so-called wiggling images.
  • An offset printing process is known in which a substrate is first printed with oil-based offset printing ink, then coated with a transparent, oil-based matt varnish containing particulate matting agents and finally covered with a transparent, water-based gloss varnish, e.g. dispersion varnish.
  • the matt coating is only applied to a partial area of the substrate, while the gloss coating is applied to the entire surface. Both the matt and the gloss varnish are applied without any screening and instead as homogeneous, isotropic coatings.
  • Only the offset printing colors seem to be applied with a printing screen, as is usual in offset printing.
  • the method described in the patent is known under the name "drip-off" and, according to the disclosure, leads to high-contrast matt-gloss effects.
  • the DE 10 2006 003 311 A1 describes a method for generating image effects that can be changed depending on the viewing angle, whereby first a lacquer grid (point grid or line grid) is applied to a full-area or only part of the base lacquer layer and then a UV lacquer is applied to the exposed areas of the base lacquer layer.
  • the UV coating forms a lenticular functional layer and is then dried.
  • Below the three layers mentioned is printing ink in a layer of ink applied by offset printing units and forms a multicolored print subject.
  • the Grid of the second varnish or the correspondingly formed UV varnish is matched to a grid of the print subject. In other words: the lenticular grid of the image and the lenses must not be different.
  • EP 1 211 095 A1 describes a method for printing raised structures, in which the image is printed with a paint that drips off the paint laid over it, so that the paint collects at the edges of the colored stripes and forms raised lines there.
  • the grid of these structures follows the grid of the structures of the underlying color image.
  • Another method for producing relief-like structures on images printed using the offset process consists in applying powder, flakes, etc. to the offset ink while it is still wet, these powders sticking to the ink, and then the ink is allowed to dry completely. This procedure is in the U.S. Patent 46 84 548 described.
  • the object of the present invention is to create a method that is improved over the prior art, which makes it possible to produce optically appealing and/or functionally enhanced printed products in a simple manner and with known technical means, in particular quickly, inexpensively and in large quantities to achieve quantities of effect features on printed products or to imitate known effects of expensive features with corresponding effects of cheaper features.
  • a method according to the invention for the rasterized application of fluids to substrates is a method in which - in case i) a substrate that is not rastered in at least one section or a coating of the substrate that is not rasterized in at least one section, a rasterized first image of a first fluid is applied using a first application device the substrate is applied in the section, the first fluid being a transparent varnish and the first image being applied as a continuous tone image having anisotropy, or in case ii) a substrate screened at least in the section or at least in the section of the rasterized coating of the substrate, a differently rasterized first image of a first fluid is applied to the substrate in the section, with both rasters having different raster shapes and/or raster sizes and/or raster spacing and/or raster angles, - an unrastered one covering the first image second image of a second fluid is applied using a second applicator to the substrate in the section which in case i) has a
  • second image also includes the homogeneous, isotropic application of the second fluid without information content, e.g. second fluid sprayed on in the form of a layer covering the entire area in the section. Due to the formation of the second fluid according to the raster (pattern) of the first fluid, the final structure can nevertheless carry information, e.g. a corresponding (preferably negative) pattern. However, the application can also be carried out partially in the section, e.g. in so-called spots or structured, e.g. in the form of a pattern.
  • a screened first fluid is applied.
  • the grid of this first fluid is also not like in State of the art of the lenticular effect on an underlying grid (of the substrate or a substrate coating) tuned, but surprisingly chosen to be different. If the substrate or its coating is not screened, then of course there is no need to pay attention to the difference.
  • the second fluid forms according to the pattern of the first fluid, i.e. the second fluid collects at the points where the first fluid is not present.
  • the second fluid does not wet the first fluid or wets it only poorly and therefore collects at the more easily wetted points where no first fluid is present, ie to a certain extent in the grid gaps on the substrate or its coating.
  • a grid of a second fluid is thus advantageously created according to the invention using a first fluid. Since this grid of second fluid is not matched to a grid of the substrate located underneath or its coating (except for the first fluid required for formation), no lenticular effect can occur. According to the invention, however, this is downright desirable, because the grid of second fluid should come from within itself (ie also on an unstructured, homogeneous, isotropic, monochromatic background) and without a lens interaction
  • this effect can be a direction-dependent gloss or an optical (light/dark) and/or tactile (high/low) perceptible pattern.
  • this effect can be based on a locally changed reflection, sparkle, transparency or scattering by the second fluid according to its rastering.
  • the first image represents a latent, transparent wetting image for the second fluid.
  • the first fluid influences the optically perceptible effects of the grid produced from the second fluid only through its grid, but not through its color. A color effect can thus be produced solely and undisturbed by coloring the second fluid.
  • a wetting-changing fluid known from the production of the drip-off effect can be used as the first fluid, e.g the matt lacquer described in the prior art.
  • the second fluid is a transparent lacquer.
  • an additional color effect or metal effect can be produced by a printed image underneath or cold foil transfer material forming the background.
  • surfaces such as brushed steel or grinding and polishing patterns can be printed inexpensively.
  • natural structures fur, leather
  • cracks can also be reproduced.
  • the first image is applied according to the invention as a halftone image.
  • the advantage here is that the raster of the first fluid can be used to achieve effects that are rich in detail or have gradients.
  • the first image can thus be structured like a graphic image and not only have coarse raster structures, as is sufficient for producing the lenticular image. The above-mentioned reproduction of detailed, natural structures can easily be achieved in this way.
  • the first image has an anisotropy, preferably due to the use of a line screen.
  • the second image can have a direction-dependent gloss.
  • a corresponding anisotropic structuring of the second fluid applied in an unstructured manner or only in spots can be achieved in a simple manner by the anisotropic pre-structuring by means of the first fluid.
  • the second fluid contains effect pigments (microparticles) that produce interference phenomena. All of the effects already mentioned can be reinforced or upgraded further by additionally using such effects of the pigments. In the case of the direction-dependent gloss mentioned, the superimposed effect of additional effect pigments can lead to a further upgrading of the product and, despite the simple printing technology production method, is too surprising appealing, complex effects.
  • An advantageous and therefore preferred development of the method according to the invention can be characterized in that a colored third fluid, preferably offset printing ink, or metallically shiny foil transfer material, preferably cold foil transfer material containing metal particles, is applied to the substrate before the first fluid.
  • a colored third fluid preferably offset printing ink, or metallically shiny foil transfer material, preferably cold foil transfer material containing metal particles.
  • first fluid is applied with a first printing form, with an offset printing form or a letterpress form preferably being used as the first printing form.
  • a flexographic printing form can more preferably be used as the letterpress form.
  • An advantageous and therefore preferred development of the method according to the invention can be characterized in that a flexographic printing form, an offset printing form applying water-based paint, a gravure printing form or a screen printing form is preferably used as the second printing form.
  • Application methods that can achieve a layer thickness sufficient for a formation are particularly advantageous.
  • figure 1 shows a flow chart of a preferred embodiment of a method according to the invention for rasterized application of fluids onto substrates (according to case i in the claims).
  • the left-hand side shows the method when an unscreened substrate 1 is provided, and the right-hand side when a substrate 1 with an unscreened coating 2 is provided.
  • a section 3 is shown on both sides, in which the treatment, ie the application of fluid, essentially takes place.
  • the substrate 1 or the substrate 1 is provided with a coating 2 for the subsequent method steps.
  • the substrate 1 can be a printing material such as paper, cardboard or film.
  • the coating 2 can be a homogeneous layer of paint or lacquer, e.g. monochromatic or colorless, or a homogeneously applied cold foil transfer material, e.g. shiny metallic.
  • Process step A, as well as the subsequent process steps B to D, can be carried out in a printing press with a feeder, offset printing units, coating units, cold foil module, dryer and delivery (in the process corresponding sequential arrangement).
  • a first fluid 5 is applied to the substrate 1 or to its coating 2 using a first application device 4 .
  • the application device 4 can be a printing form, preferably an offset printing form.
  • the first fluid 5 is a transparent paint.
  • the first fluid 5 is applied as a screened first image 5', in case i) as a halftone image.
  • the grid can be a point or line grid.
  • the first fluid 5 has a property that means that in the subsequent method step C applied second fluid 6 wets the first fluid 5 less well than the substrate 1 or its coating 2.
  • the first fluid 5 has a lower surface energy than the substrate 1 or its coating 2.
  • the first image 5' therefore represents a latent, transparent wetting image for the second fluid 6.
  • the first fluid 5 can therefore be a wetting-changing fluid used in the known drip-off effect, such as an oil-based matt paint.
  • a second fluid 6 is applied to the substrate 1 or to its coating 2 and also to the first fluid 5 using a second application device 7 .
  • the application device 7 can be a printing form, preferably a flexographic printing form, or a spray device.
  • the second fluid 6 is also a transparent paint.
  • the second fluid 6 is applied as an unrastered second image 6', which covers the first image 5' at least in section 3 and there at least partially.
  • the second fluid 6 forms a layer for a short time, which, however, is screened in the subsequent method step D by formation.
  • the second fluid 6 is applied wet-on-wet, i.e. before the first fluid 5 has substantially dried.
  • a known, water-based gloss paint can also be used as the second fluid.
  • a formation 8 of the second fluid 6 takes place on the substrate 1 or its coating 2 in section 3 .
  • This formation 8 is essentially determined by the grid of the first image 5 ′ in section 3 .
  • the second fluid 6 drips off the first fluid 5 and collects at those locations on the substrate 1 or its coating 2 that are not coated with the first fluid 5 .
  • the layer thickness of the second fluid 6 increases at these points, so that optically and/or tactilely perceptible effects arise (the thickness can be increased further by using swelling lacquer).
  • the first image 5' has anisotropy, preferably due to the use of a line screen, and as a result the second image 6 ⁇ has a direction-dependent gloss.
  • the second fluid 6 can additionally Contain effect pigments that produce interference phenomena and intensify the optical effect, in particular with a given direction-dependent gloss.
  • the second fluid 6 applied without a pattern experiences a formation on the substrate 1 or its coating 2 that is controlled or determined by the first fluid 5 applied in a pattern. but the second fluid 6 rolls off according to the predetermined and spatially resolved structure of the first fluid 5 and collects according to a negative structure.
  • This formed structure is preferably so fine that optical effects such as direction-dependent gloss can arise and at the same time so coarse that sufficient second fluid 6 rolls off locally and collects locally. This also leads to a local accumulation of second fluid 6 and, as a result, to improved optical or even haptic/tactile effects.
  • figure 2 shows a flow chart of a further preferred embodiment of a method according to the invention for the rasterized application of fluids onto substrates (according to case ii in the claims).
  • the left-hand side shows the method for providing a gridded substrate 1 and the right-hand side for providing a substrate 1 with a gridded coating 2 .
  • the patterned substrate 1 can be an embossed substrate.
  • the coating 2 can be a screened layer of paint or varnish or a cold foil transfer material that is applied in a screened manner and preferably has a metallic luster/containing metal particles.
  • the grid can be a point or line grid.
  • the first application of fluid takes place accordingly figure 1 .
  • the grid of the first fluid 5 is different from the underlying grid of the substrate 1 or from its coating 2 .
  • the difference can be that both screens have different screen shapes and/or screen sizes and/or screen spacing and/or screen angles.
  • the grid of the first fluid 5 can have dots, ellipses, stars or lines as grid shapes.
  • the final structure made from the second fluid 6 is not intended to serve as a lens grid for an image underneath (e.g. a shaky image), nor are pronounced moiré effects to arise due to poor matching. Rather, the final structure of the second fluid 6 should produce an effect itself, i.e. without any significant interaction with structures located underneath.
  • method step C the second application of fluid takes place and in method step D the formation takes place accordingly figure 1 .
  • a printed product produced according to the invention in this way can comprise: a substrate 1, offset printing ink 2 and/or cold foil transfer material 2, screened, transparent, wetting-changing fluid 5 and transparent varnish 6 screened in substantially the same way.
  • a feature produced according to the invention on an otherwise conventional printed product can be on the substrate 1 include: offset printing ink 2 and/or cold foil transfer material 2, rastered, transparent, wetting-changing fluid 5 and essentially the same rastered transparent varnish 6. Due to its optically and haptically/tactilely appealing effect, such a feature can also be used as a so-called security feature, e.g. during verification for authenticity, find use.

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  • Printing Methods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (6)

  1. Procédé d'application tramée de fluides sur des supports, dans lequel
    - dans le cas i) d'un support (1) non tramé au moins dans une section (3) ou d'un revêtement (2) du support (i) non tramé au moins dans la section (3), une première image tramée (5') d'un premier fluide (5) est appliquée sur le support (1) dans la section (3) en utilisant un premier dispositif d'application (4), le premier fluide (5) étant un vernis transparent et la première image (5') étant appliquée sous forme d'image en demi-teinte présentant une anisotropie, ou dans le cas ii) d'un support (1) tramé au moins dans la section (3) ou d'un revêtement (2) du support (1) tramé au moins dans la section (3), une première image (5') tramée différemment d'un premier fluide (5) est appliquée sur le support (1) dans la section (3), les deux trames présentant des formes de trame et/ou des tailles de trame et/ou des distances de trame et/ou des angles de trame différents,
    - une deuxième image (6') non tramée, recouvrant la première image (5'), d'un deuxième fluide (6) est appliquée sur le support (1) dans la section (3) en utilisant un deuxième dispositif d'application (7), lequel présente dans le cas i) un brillant dépendant de la direction en raison de l'anisotropie de la première image (5'), le deuxième fluide (6) étant un vernis transparent,
    - la formation (8) du deuxième fluide (6) sur le support (1) dans la section (3) est essentiellement déterminée par la trame de la première image (5') dans la section (3), le deuxième fluide (6) perlant du premier fluide (5) et s'accumulant aux endroits du support (1) et/ou de son revêtement (2) et y augmentant l'épaisseur de la couche du deuxième fluide (6) qui ne sont pas recouverts du premier fluide (5), et
    - la première image (5') représentant pour le deuxième fluide (6) une image de réticulation latente, transparente.
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que le deuxième fluide (6) contient des pigments à effets générant des phénomènes d'interférence.
  3. Procédé selon la revendication 1,
    caractérisé en ce
    qu'avant le premier fluide (5), un troisième fluide (2) teinté, de préférence une encre d'impression offset, ou un film de transfert (2) au brillant métallique, de préférence un film de transfert à froid contenant des particules métalliques, est appliqué sur le support (1).
  4. Procédé selon la revendication 1,
    caractérisé en ce
    que le premier fluide (5) est appliqué avec une première forme d'impression (4), la première forme d'impression (4) utilisée étant préférablement une forme d'impression offset ou une forme d'impression en relief.
  5. Procédé selon la revendication 4,
    caractérisé en ce
    que le deuxième fluide (6) est appliqué avec une deuxième forme d'impression (7) ou avec un dispositif de pulvérisation (7).
  6. Procédé selon la revendication 5,
    caractérisé en ce
    que l'on utilise préférablement comme deuxième forme d'impression (7) une forme d'impression flexographique, une forme d'impression offset appliquant un vernis à l'eau, une forme d'impression en creux ou une forme d'impression sérigraphique.
EP10186785.1A 2009-11-10 2010-10-07 Procédé d'application tramées de fluides sur des substrats Active EP2319703B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009052421 2009-11-10

Publications (4)

Publication Number Publication Date
EP2319703A2 EP2319703A2 (fr) 2011-05-11
EP2319703A3 EP2319703A3 (fr) 2012-05-02
EP2319703B1 EP2319703B1 (fr) 2013-12-18
EP2319703B2 true EP2319703B2 (fr) 2023-09-06

Family

ID=43532863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10186785.1A Active EP2319703B2 (fr) 2009-11-10 2010-10-07 Procédé d'application tramées de fluides sur des substrats

Country Status (4)

Country Link
US (1) US20110111118A1 (fr)
EP (1) EP2319703B2 (fr)
CN (1) CN102139590B (fr)
DE (1) DE102010047926B4 (fr)

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EP2682273B1 (fr) * 2012-07-06 2015-09-09 Agfa Graphics Nv Procédés de vernissage à jet d'encre
DE102015211553A1 (de) * 2014-07-30 2016-02-04 Heidelberger Druckmaschinen Ag Verfahren zum Lackieren
DE102017202666A1 (de) * 2016-03-24 2017-09-28 Heidelberger Druckmaschinen Ag Verfahren zum Herstellen eines Druckprodukts
DE102017206557A1 (de) 2016-05-19 2017-11-23 Heidelberger Druckmaschinen Ag Verfahren zum Herstellen eines Druckproduktes mit visuellem 3D-Effekt
GB201620917D0 (en) * 2016-12-08 2017-01-25 Crown Packaging Technology Inc Forming a texture in a can surface decoration
CN106932846B (zh) * 2017-05-08 2019-11-05 京东方科技集团股份有限公司 一种光学增亮结构及其制作方法
DE102018216927B4 (de) 2018-10-02 2020-08-13 Heidelberger Druckmaschinen Ag Verfahren zum Herstellen eines Druckprodukts
JP2021020680A (ja) * 2019-07-25 2021-02-18 トーイン株式会社 箱、ラベル又は台紙
JP2021020679A (ja) * 2019-07-25 2021-02-18 トーイン株式会社 箱、ラベル又は台紙
CN114368218A (zh) * 2020-10-15 2022-04-19 海德堡印刷机械股份公司 用于制造印刷品的方法

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US4233343A (en) 1978-08-10 1980-11-11 J. J. Barker Company Limited Three-dimensional decorative surface
FR2543060B1 (fr) * 1983-03-25 1985-12-06 Chretien Jean Basile Nouveau procede de modification de l'etat de surface de materiaux et objets presentant un etat de surface modifie ainsi obtenus par ce procede
US20010010254A1 (en) * 1998-09-04 2001-08-02 Arthur Landau Stain resistant coating material
GB9821983D0 (en) * 1998-10-08 1998-12-02 Thorstone Business Man Ltd Panels
US6546872B1 (en) 2000-11-27 2003-04-15 Sonoco Development, Inc. Profile printing method with additive technology
US20060019074A1 (en) * 2001-03-27 2006-01-26 Serigraph Inc. Printed article having texture printing and a uniform surface gloss to simulate embossing and method of manufacturing same
US6894086B2 (en) * 2001-12-27 2005-05-17 Ppg Industries Ohio, Inc. Color effect compositions
DE10360050B3 (de) 2003-12-22 2005-08-18 Aquaprint Gmbh Offsetdruckverfahren und Druckerzeugnis
DE10362054B4 (de) * 2003-12-22 2010-12-30 Actega Terra Gmbh Offsetdruckverfahren und Druckerzeugnis
CN2797048Y (zh) * 2005-01-17 2006-07-19 吴德明 以胶印及柔印相结合制作光栅条纹的图片
DE102006003311A1 (de) 2006-01-23 2007-07-26 Man Roland Druckmaschinen Ag Verfahren und Einrichtung zum Erzeugen von betrachtungswinkelabhängig veränderbaren Bildeffekten auf einen Bedruckstoff
DE102008013509A1 (de) * 2007-03-30 2008-10-02 Heidelberger Druckmaschinen Ag Verfahren zum Erzeugen eines steganografischen Bildes auf einem Bedruckstoff
DE102009040359A1 (de) 2009-09-07 2011-03-10 Heidelberger Druckmaschinen Ag Verfahren zum Erzeugen eines drucktechnischen Merkmals auf einem Substrat eines Druckprodukts

Also Published As

Publication number Publication date
CN102139590A (zh) 2011-08-03
EP2319703A2 (fr) 2011-05-11
DE102010047926A1 (de) 2011-05-12
CN102139590B (zh) 2015-03-18
US20110111118A1 (en) 2011-05-12
EP2319703A3 (fr) 2012-05-02
DE102010047926B4 (de) 2024-08-29
EP2319703B1 (fr) 2013-12-18

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