IP Library Granted Patent US 8,654,405
Granted Patent B2
US 8,654,405 · App. 12/996,939 · Granted Feb 18, 2014

Method for producing a multi-layered film

Inventors: Michael Siebert (Wedel, DE); Philipp Preuβ (Neuenhaus, DE)
Assignee: tesa SE
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Quick Facts
Patent No.
US 8,654,405
App. No.
12/996,939
Granted
Feb 18, 2014
Kind
B2
Abstract

A method for producing a multi-layered film wherein an engraving layer is partially printed onto a support film. Said engraving layer may be made of a UV-cured printing ink and a cover layer is applied to the entire surface above the partial engraving layer, optionally, directly to the partial engraving layer. The cover layer may be made of a UV-curable printing ink and may be printed over the engraving layer. A film produced by such method is also disclosed.

Claims (31)

1. A method for producing a multi-layered film, comprising partially overprinting an engraving layer on a support film to form a partial engraving layer on said support film, the partial engraving layer being formed from a UV-curable printing ink, and overprinting a cover layer on the whole area above the partial engraving layer, wherein the cover layer is formed from a UV-curable printing ink.

2. The method as claimed in claim 1 , wherein the overprinting comprises a flexographic printing process.

3. The method as claimed in claim 1 , which further comprises applying a carrier above the cover layer.

4. The method as claimed in claim 1 , which further comprises partially overprinting an inverse engraving layer essentially with accurate register with a pattern inverse to the engraving layer, the inverse engraving layer being formed from a UV-curable printing ink.

5. The method as claimed in claim 4 , which further comprises overprinting the engraving layer and the inverse engraving layer with an essentially coinciding layer thickness.

6. The method as claimed in claim 1 , which further comprises forming the engraving layer and/or the inverse engraving layer from several layers of UV-curable printing inks.

7. The method as claimed in claim 1 , which further comprises overprinting one or more further printing ink layers above the cover layer, these printing ink layers being formed from a UV-curable printing ink.

8. The method as claimed in claim 7 , wherein the further printing ink layers are formed full-area or partially.

9. The method as claimed in claim 1 , which further comprises printing the support film full-area with a printing ink layer and overprinting the partial engraving layer on this printing ink layer.

10. The method as claimed in claim 1 , which further comprises printing the support film or a printing ink layer with a metallic-luster layer and overprinting the engraving layer on the metallic-luster layer.

11. The method as claimed in claim 1 , which further comprises overprinting one or more printing ink layers with a thickness between about 0.5 μm and about 10 μm.

12. The method as claimed in claim 1 , which further comprises overprinting the partial engraving layer with a thickness between about 0.5 μm and about 5 μm.

13. The method as claimed in claim 1 , which further comprises providing the partial engraving layer and/or an inverse engraving layer with a security element.

14. The method as claimed in claim 1 , which further comprises incorporating laser absorbers in the printing ink of the cover layer and/or in the printing ink of the engraving layer.

15. The method as claimed in claim 1 , which further comprises overprinting the cover layer with a thickness between about 1 μm and about 10 μm.

16. The method as claimed in claim 1 , which further comprises forming the carrier layer with a thickness between about 50 μm and about 200 μm.

17. A multi-layered film, comprising a printed partial engraving layer of a UV-curable printing ink and a printed cover layer arranged full-area above the engraving layer, wherein the cover layer is formed from a UV-curable printing ink.

18. The film as claimed in claim 17 , wherein the cover layer is arranged directly on the engraving layer.

19. The film as claimed in claim 17 , wherein a printed metallic-luster layer is arranged between the engraving layer and the cover layer.

20. The film as claimed in claim 17 , wherein a full-area carrier layer is arranged above the cover layer.

21. The film as claimed in claim 20 , wherein the carrier layer has a layer thickness between about 50 μm and about 200 μm and/or wherein the cover layer has a layer thickness between about 1 μm and about 10 μm.

22. The film as claimed in claim 17 , wherein the engraving layer and/or the inverse engraving layer are formed from several layers of UV-curable printing inks.

23. The film as claimed in claim 17 , wherein the engraving layer and the inverse engraving layer have an essentially equal layer thickness.

24. The film as claimed in claim 17 , wherein one or more further printing ink layers are arranged above the cover layer, the printing ink layers being formed in each case from a UV-curable printing ink.

25. The film as claimed in claim 17 , wherein a printed printing ink layer and/or a printed metallic-luster layer are arranged under the engraving layer.

26. The film as claimed in claim 17 , wherein one or more printed printing ink layers have a layer thickness between about 0.5 μm and about 10 μm and/or wherein the engraving layer has a layer thickness between about 0.5 μm and about 5 μm.

27. The film as claimed in claim 17 , wherein an inverse engraving layer is arranged partially essentially with accurate register with a pattern inverse to the engraving layer in gaps in the engraving layer and in that the inverse engraving layer is formed from a UV-curable printing ink.

28. The film as claimed in claim 17 , wherein the engraving layer and/or an inverse engraving layer have a security element.

29. The film as claimed in claim 17 , wherein the printing ink of the cover layer and/or the printing ink of the engraving layer contain laser absorbers.

30. A method for producing a multi-layered film, comprising partially overprinting an engraving layer on a support film to form a partial engraving layer on said support film, the engraving layer being formed from a UV-curable printing ink, and overprinting a cover layer on the whole area above the partial engraving layer, wherein the cover layer is formed as a metallic-luster layer, and overprinting another engraving layer on the metallic-luster layer.

31. The method as claimed in claim 30 , wherein the overprinting comprises a flexographic printing process.

Assignments (2)
CHANGE OF ADDRESS Recorded Dec 17, 2015
From: TESA SE
To: TESA SE
Reel/Frame 037317/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 24, 2011
From: SIEBERT, MICHAEL; PREUSS, PHILIPP
To: TESA SE
Reel/Frame 025682/0513 →
Priority Claims (1)
DE 10 2008 046 462 · Sep 9, 2008 · national
Continuity (1)
Related Publication 20110149349A1 · Jun 23, 2011