EP2279865A2 - Procédé de sérigraphie destiné à l'impression d'un objet doté d'un motif d'impression - Google Patents
Procédé de sérigraphie destiné à l'impression d'un objet doté d'un motif d'impression Download PDFInfo
- Publication number
- EP2279865A2 EP2279865A2 EP10170620A EP10170620A EP2279865A2 EP 2279865 A2 EP2279865 A2 EP 2279865A2 EP 10170620 A EP10170620 A EP 10170620A EP 10170620 A EP10170620 A EP 10170620A EP 2279865 A2 EP2279865 A2 EP 2279865A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- paint
- threads
- ink
- screen printing
- printing ink
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000007650 screen-printing Methods 0.000 title claims description 40
- 239000003973 paint Substances 0.000 claims abstract description 51
- 230000005855 radiation Effects 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims description 41
- 239000004922 lacquer Substances 0.000 claims description 26
- 238000004049 embossing Methods 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000002537 cosmetic Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000002966 varnish Substances 0.000 abstract description 16
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 64
- 230000000694 effects Effects 0.000 description 11
- 230000000740 bleeding effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000025 natural resin Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B41M3/16—Braille printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
- B41C1/148—Forme preparation for stencil-printing or silk-screen printing by a traditional thermographic exposure using the heat- or light- absorbing properties of the pattern on the original, e.g. by using a flash
-
- 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
- B41M1/12—Stencil printing; Silk-screen printing
-
- 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
- B41M1/40—Printing on bodies of particular shapes, e.g. golf balls, candles, wine corks
Definitions
- the invention relates to a screen printing method for printing an article with a print motif.
- a screen printing method for printing signs is known in which a thick ink jet is applied to a flat substrate surface to produce a three-dimensional effect.
- the ink sheet is applied either in overlap with an edge of a thin ink layer or directly applied as an edge without an ink layer on the substrate surface. Following this, the substrate surface and the entire print motif are covered with a film layer or a thick layer.
- the invention has the object of developing a screen printing process such that in the printing of objects with a curved surface in a novel manner novel effects can be achieved.
- a screen printing method with the features of claim 1.
- three-dimensional print motifs can be generated which, owing to their raised structure, achieve an effect that is both visually and haptically novel.
- the known screen printing process for the production of two-dimensional print motifs is modified and misappropriated so that print motifs with a maximum height of at least 100 microns can be applied to the curved surface of the object to be printed. Since a considerable amount of printing ink and / or varnish is required to produce the three-dimensional print motif, other printing processes are ruled out.
- a sufficient amount of print job ie printing ink and / or paint
- the printing ink or the paint must cure before bleeding.
- the printing ink or lacquer has photoinitiators which initiate a polymerization process under the influence of ultraviolet radiation, so that the printing ink or the lacquer cures before bleeding.
- the high amount of applied ink or paint thus maintains its three-dimensional structure and does not extend to a two-dimensional print.
- the screen fabric is coated several times directly before the screen printing process, so that a sufficiently high column of ink and / or paint can be formed.
- a high degree of flexibility in generating three-dimensional print motifs is ensured in a simple manner.
- large-area three-dimensional print motifs with comparatively sharp contours can be produced as desired since a sufficient amount of printing ink and / or varnish can be provided, even if the screen fabric has a fabric density of at least 25 threads / cm, in particular of at least 30 threads / cm, in particular of at least 35 threads / cm and in particular of at least 40 threads / cm.
- a layer of ultraviolet radiation curable composition is applied to the screen fabric. Subsequently, the applied layer is between dried and applied to this at least one further layer of the composition and intermediately dried.
- the coating can be carried out at least twice, in particular at least three times and in particular at least four times in order to produce the desired height of the column of printing ink and / or lacquer.
- a film is applied to the applied layers, which protects the applied layers in the region of the print motif to be printed from ultraviolet radiation. In the subsequent irradiation with ultraviolet radiation, the applied layers are cured in the area outside the print motif to be printed.
- the area of the print motif remains sufficiently soft to remove the applied mass or layers in that area from the screen cloth, for example, by rinsing.
- significantly more ink and / or paint can be applied, since the column of ink and / or paint is increased due to the layer by layer mass significantly increased over a corresponding column in height of the filament thickness of the mesh.
- three-dimensional print motifs with a certain maximum height can be applied comparatively finely and with sharp contours, since the amount of printing ink and / or varnish does not have to be provided by a reduction of the fabric density of the screen fabric, but a screen fabric with comparatively high fabric density is sufficient to provide the desired amount of printing ink and / or varnish.
- curved surfaces such as, for example, hollow cylindrical sleeves and / or containers of writing implements and / or cosmetic articles
- curved surfaces can be printed with the three-dimensional print motif using the screen printing method. Since the printing ink or lacquer does not harden before being irradiated with ultraviolet radiation, a stable printing process, short changeover times and a long operating time of the printing press are ensured.
- Particularly suitable for printing curved surfaces are screen fabrics whose threads have a high thread thickness and / or are formed from a metallic material, since higher forces act on the threads when printing curved surfaces than when printing on flat surfaces.
- the printing ink or the varnish can be based on synthetic resin and / or natural resin.
- the printing ink and / or the paint can be provided with pigments and / or effect additives, such as metal powder.
- the paint may be formed as a clear lacquer.
- the object to be printed may have been embossed with an embossing foil before the application of the printing ink or the lacquer.
- the embossing film may be formed, for example, photoreal. This makes it possible to apply any images with a three-dimensional haptic and optical effect on the object.
- a screen printing method according to claim 2 leads to an improved haptic effect.
- the printing ink and / or the varnish can with a maximum Height can be applied, which is adjustable in wide ranges.
- the three-dimensional print motif can have a maximum height of up to 2000 ⁇ m.
- a screen printing method prevents the bleeding of the printing ink and / or the paint before curing.
- Suitable thickeners are known and commercially available.
- a screen printing method prevents bleeding of the applied ink and / or the applied paint.
- a screen printing method ensures the application of a high amount of the printing ink and / or the paint.
- the application of a high amount of the printing ink and / or the paint is ensured by the thread thickness of the threads. The larger the thread thickness, the more ink and / or varnish can be applied.
- a screen printing method enables the production of three-dimensional print motifs with a comparatively good resolution. Because a high column of printing ink and / or lacquer can be produced, it is also possible to use screen fabrics having a comparatively high fabric density, since the required quantity of printing ink and / or lacquer does not have to be provided exclusively via a low fabric density. Accordingly, three-dimensional print motifs of a certain height can be produced with a comparatively good resolution by increasing the fabric density with a high column of printing ink and / or varnish.
- a screen printing method allows the printing of cylindrical and / or hollow cylindrical objects, such as sleeves and / or containers of writing instruments and / or cosmetics.
- a screen printing process according to claim 8 ensures rapid curing of the applied print motif, since the high amount of clear lacquer in the print job ensures high transparency of the print motif for the ultraviolet radiation. With a high amount of clear varnish, correspondingly high three-dimensional print motifs with sharp contours can be produced.
- a screen printing method ensures a rapid curing of the applied print motif, since the small amount of ink in the print job only slightly affects the transparency and curing, but at the same time gives the print motif a colorful appearance.
- the ink is preferably mixed with a high amount of clear varnish.
- a screen printing method prevents the bleeding of the printing ink and / or the paint before curing.
- the addition of solid particles increases the viscosity of the printing ink and / or the paint.
- attractive optical and / or haptic effects can be generated by solid particles, in particular of metal or plastic.
- a screen printing method enables the production of high three-dimensional print motifs with appealing optical effects.
- the embossing film is preferably applied to clear lacquer, which can be applied with the screen printing process according to the invention as a high print motif. If the embossing foil is pressed onto the object and the applied clear lacquer at a low temperature, then the embossing foil adheres exclusively to the clear lacquer and dissolves again from the part of the article not provided with clear lacquer. As a result, novel optical and / or haptic effects can be generated.
- Fig. 1 shows an article in the form of a hollow cylindrical sleeve 1, which is for example part of a writing utensil or a cosmetic article.
- the sleeve 1 has a circular cross-sectionally curved surface 2, on which a flower-like print motif 3 is arranged.
- the print motif 3 is formed from a cured by ultraviolet radiation ink 4 and cured by ultraviolet radiation paint three-dimensional and has a maximum height H of at least 100 .mu.m, in particular of at least 500 .mu.m, in particular of at least 1000 .mu.m, in particular of at least 1300 microns and in particular of at least 1500 microns.
- photoinitiators 6 which initiate a polymerization process under the influence of ultraviolet radiation and cause the curing of the printing ink 4 and the paint 5.
- the printing ink 4 and the varnish 5 are suitable for use in a screen printing process and are based, for example, on synthetic or natural resin.
- resin for example, acrylate resin is suitable, which is contained in a proportion of 50 to 75 wt .-% in the printing ink 4 and the paint 5.
- the three-dimensional print motif 3 is applied to the sleeve 1 by a screen printing method.
- the thickener 7 is first added to the printing ink 4 and the paint 5 prior to application, so that the viscosity of the printing ink 4 or of the paint 5 is at least 12,000 mPas, in particular at least 18,000 mPas, in particular at least 24,000 mPas, and in particular at least 30,000 mPas increased at 25 ° C.
- the printing ink 4 and the paint 5 are then applied through a screen fabric 8 at the desired locations on the sleeve 1, so that the print motif 3 is formed.
- the screen fabric 8 is for example in Fig. 2 indicated.
- the screen fabric 8 is formed by a plurality of threads 9 which are spaced apart from each other and disposed on a frame 10 in a first direction and in a second direction perpendicular thereto.
- the screen fabric 8 is repeatedly coated directly to apply a large amount of ink 4 or paint 5 before the screen printing process, so that a sufficiently high column of ink 4 or paint 5 can be formed.
- the screen fabric 8 is coated with a first layer 11 of an ultraviolet radiation-curable composition. Subsequently, the applied layer 11 is between dried and applied to this another layer 12 of the mass.
- the coating can be carried out at least twice, in particular at least three times and in particular at least four times.
- a film is applied to the applied layers 11, 12, which protects the applied layers 11, 12 in the region of the print motif 3 to be printed from ultraviolet radiation.
- the layers 11, 12 are cured. Due to the film, however, the area of the print motif 3 to be printed remains sufficiently soft to remove the applied mass in this area from the screen cloth 8, for example by rinsing. This results in the area of the print motif 3, a receiving space 13 which is bounded laterally by the layers 11, 12.
- Significantly more printing ink 4 or paint 5 can be applied in the subsequent screen printing process since in the receiving space 13 the paint or lacquer column is markedly increased in comparison with a paint or lacquer column in the amount of the thread thickness due to the composition applied in layers.
- the screen fabric 8 has a fabric density of at most 200 threads / cm, in particular of at most 120 threads / cm, in particular of at most 100 threads / cm, in particular of at most 40 threads / cm and in particular of at most 20 threads / cm.
- the fabric density may be varied within a range of 15 to 200 threads / cm depending on the required amount of the printing ink 4 to be applied and the paint 5 to be applied.
- the screen cloth 8 preferably has a fabric density of at least 25 threads / cm, in particular of at least 30 threads / cm, in particular of at least 35 threads / cm and in particular of at least 40 threads / cm on.
- the thread thickness of the threads 9 can be varied depending on the required quantity of the applied printing ink 4 and the paint 5 to be applied.
- the print motif 3 can also be built up in layers. For this purpose, the printing ink 4 or the paint 5 is applied in layers and cured.
- the sleeve 1 For printing on the sleeve 1, this is placed on both sides at the end on two rotatably mounted rollers 14, 15.
- the rollers 14, 15 are transversely displaceable to the screen fabric 8, so that the sleeve 1 with its surface 2 against the threads 9 can be pressed.
- a scraper 16 is disposed on the layer 12 and the screen fabric 8 relative to the scraper 16 and the sleeve 1 so linearly displaced in the horizontal direction, that the sleeve 1 rolls along the screen fabric 8.
- the scraper 16 presses the ink 4 located in the receiving space 13 or the paint 5 in the area of the printing motif 3 through the screen cloth 8 onto the surface 2 of the sleeve 1.
- the printing ink 4 and the paint 5 are applied through the screen cloth 8 and then cured by irradiation with ultraviolet radiation.
- the time interval between the application and irradiation of the printing ink 4 and of the varnish 5 is at most 180 seconds, in particular at most 45 seconds, and in particular at most 20 seconds.
- the ink 4 and the varnish 5 do not run due to their viscosity and the time between application and irradiation, so that the cured print motif 3 has substantially the same height H with which it was applied.
- the print motif 3 is applied in particular with a height H of at least 500 ⁇ m, in particular of at least 1000 ⁇ m, and in particular of at least 1300 ⁇ m and in particular of at least 1500 ⁇ m.
- the printing motif 3 has, for example, at least 70% by weight, in particular at least 80% by weight and in particular at least 90% by weight, of clear lacquer 5. Furthermore, the printing motif 3, for example, at most 20 wt .-%, in particular at most 15 wt .-% and in particular at most 10 wt .-% ink 4. By a high amount of clear varnish 5 and a comparatively small amount of ink 4 in the print job a rapid curing of the print motif 3 is ensured, this appears colored at the same time.
- the print motif 3 has solid particles 17 which increase the viscosity of the printing ink 4 and / or of the varnish 5 and at the same time produce an appealing visual and haptic effect.
- the solid particles 17 are, for example, pigments and / or effect additives.
- the solid particles 17 are in particular a metal powder.
- the sleeve 1 according to Fig. 5 has a print motif 3 with an additional stamping foil 18.
- the raised structure of the print motif 3 consists of a clear lacquer 5. After curing of the clear lacquer 5, the embossing foil 18 is pressed against the surface 2 of the sleeve 1 and the clear lacquer 5 at a sufficiently low temperature. Due to the low temperature, the embossing foil 18 remains adhering substantially exclusively to the clear lacquer 5, whereas the embossing foil 18 does not adhere to the surface 2.
- the temperature is for example less than 300 ° C, in particular less than 250 ° C and in particular less than 200 ° C.
- the raised structure of clear lacquer 5 and the embossing foil 18 applied thereto can be used to produce novel optical and / or haptic effects.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009035257A DE102009035257A1 (de) | 2009-07-29 | 2009-07-29 | Siebdruckverfahren und Gegenstand mit einem Druckmotiv |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2279865A2 true EP2279865A2 (fr) | 2011-02-02 |
EP2279865A3 EP2279865A3 (fr) | 2012-09-26 |
EP2279865B1 EP2279865B1 (fr) | 2014-05-14 |
Family
ID=43034330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10170620.8A Not-in-force EP2279865B1 (fr) | 2009-07-29 | 2010-07-23 | Procédé de sérigraphie destiné à l'impression d'un objet doté d'un motif d'impression |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2279865B1 (fr) |
DE (1) | DE102009035257A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014056124A1 (fr) * | 2012-10-11 | 2014-04-17 | Hwang Yu-Chen | Procédé d'impression 3d, panneau décoratif et boite lumineuse fabriqués au moyen dudit procédé d'impression 3d |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202013004745U1 (de) | 2013-05-23 | 2014-08-26 | Exentis-Knowledge Ag | Anlage zur Herstellung von dreidimensionalen Siebdrucken |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69110763T2 (de) | 1990-05-24 | 1995-12-14 | Lawrence J Longobardi | Anzeigen mit einem durchsichtigen Substrat. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6092464A (en) * | 1998-03-19 | 2000-07-25 | M J Grant Company | Three-dimensional raised image screen printing |
US20020011159A1 (en) * | 2000-04-19 | 2002-01-31 | Asahi Glass Company, Limited | Screen printing plate, method for making it and screen printing method |
DE10108120A1 (de) * | 2001-02-21 | 2002-02-28 | Rastal Gmbh & Co Kg | Siebdruckverfahren für den Dickschichtdruck |
JP2004086438A (ja) * | 2002-08-26 | 2004-03-18 | Brother Ind Ltd | 成形部品、操作パネル、電子機器および成形部品の製造方法 |
US20050042429A1 (en) * | 2003-06-11 | 2005-02-24 | Longobardi Lawrence J. | Method for manufacturing a work of art using UV curable ink |
DE20314274U1 (de) * | 2003-09-12 | 2004-05-27 | Faber-Castell Ag | Holzgefasster Stift für Schreib-, Mal-, Zeichen-, und Kosmetikzwecke |
WO2006026103A2 (fr) * | 2004-08-10 | 2006-03-09 | Silvergraph Lgt, Llc | Procede et appareil permettant de simuler des coups de pinceau sur des reproductions artistiques produites en serie |
-
2009
- 2009-07-29 DE DE102009035257A patent/DE102009035257A1/de not_active Withdrawn
-
2010
- 2010-07-23 EP EP10170620.8A patent/EP2279865B1/fr not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69110763T2 (de) | 1990-05-24 | 1995-12-14 | Lawrence J Longobardi | Anzeigen mit einem durchsichtigen Substrat. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014056124A1 (fr) * | 2012-10-11 | 2014-04-17 | Hwang Yu-Chen | Procédé d'impression 3d, panneau décoratif et boite lumineuse fabriqués au moyen dudit procédé d'impression 3d |
Also Published As
Publication number | Publication date |
---|---|
EP2279865B1 (fr) | 2014-05-14 |
DE102009035257A1 (de) | 2011-02-03 |
EP2279865A3 (fr) | 2012-09-26 |
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