Metallised film and process for its manufacture
| Title: | Metallised film and process for its manufacture |
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| Patent Number: | 8,526,086 |
| Publication Date: | September 03, 2013 |
| Appl. No: | 12/771050 |
| Application Filed: | April 30, 2010 |
| Abstract: | A metallised film includes at least one reflective layer (14, 17) of printed metallised ink, wherein the layer (17) of printed metallised ink includes a hardened binder incorporating at least one charge of metallised particles exhibiting a reflective metallic appearance, and the charge of metallised particles includes particles in the general form of platelets exhibiting reflective faces, and wherein the layer (17) of printed metallised ink is applied in contact with a layer (14, 15) exhibiting a surface tension greater than 40 dynes/cm and a smooth surface quality of specular reflection greater than 50%, measured in accordance with standard ISO 2813 with an angle of 60°. A process for manufacturing this film is also described. |
| Inventors: | Trantoul, Francois (Lunel, FR); Leroy, Jean-Yves (Restinclieres, FR); Bes, Laurence (Montpellier, FR) |
| Assignees: | Fasver (Baillargues, FR) |
| Claim: | 1. A metallised film including at least one reflective layer, said reflective layer being a layer of printed metallised ink, wherein said layer of printed metallised ink includes a hardened binder incorporating discrete solid metallised particles exhibiting a reflective metal appearance and a grain-size distribution, said metallised particles being made of metallised pigments of metallic particles in the general form of platelets exhibiting reflective faces, each metallised particle being in the general form of a platelet, and wherein said layer of printed metallised ink is applied in contact with a layer exhibiting a surface tension greater than 40 dynes/cm and a smooth surface quality and a specular reflection greater than 50, measured in accordance with standard ISO 2813 with an angle of 60°. |
| Claim: | 2. The film as claimed in claim 1 , wherein said layer of printed metallised ink includes metallised particles chosen from pigments metallised under vacuum and reflective metallic particles. |
| Claim: | 3. The film as claimed in claim 2 , wherein said metallised particles exhibit a mean grain-size distribution ranging between 8 μm and 11 μm. |
| Claim: | 4. The film as claimed in claim 1 , wherein said metallised particles exhibit a mean grain-size distribution ranging between 8 μm and 11 μm. |
| Claim: | 5. The film as claimed in claim 1 , wherein it includes at least one transparent layer. |
| Claim: | 6. The film as claimed in claim 5 , wherein said transparent layer is a holographic layer exhibiting at least one motif that is capable of forming at least one image, named holographic image, which is visible by showing through and by diffraction, said reflective layer extends facing and in the format of at least one holographic image, said reflective layer being a layer of printed metallised ink facing and in the format of at least one holographic image to form a metallised holographic image. |
| Claim: | 7. The film as claimed in claim 6 , wherein at least one holographic layer is formed from a transparent layer embossed in such a way as to exhibit microstructures that are capable of forming at least one holographic image. |
| Claim: | 8. The film as claimed in claim 5 , wherein at least one holographic layer is formed from a transparent layer embossed in such a way as to exhibit microstructures that are capable of forming at least one holographic image. |
| Claim: | 9. The film as claimed in claim 5 , wherein said layer of printed metallised ink extends in accordance with at least one motif exhibiting a format smaller than that of the film. |
| Claim: | 10. The film as claimed in claim 5 , wherein the film includes a transparent backing defining a format for the film, at least one holographic layer covering said backing and of a format similar to that of the backing, at least one transparent layer covering the holographic layer(s) and of a format similar to that of the backing, and wherein each layer of printed metallised ink extends over the last transparent layer in accordance with a format smaller than that of the backing. |
| Claim: | 11. The film as claimed in claim 10 , wherein the film includes at least one layer with high index of optical refraction between the holographic layer(s) and each layer of printed metallised ink. |
| Claim: | 12. The film as claimed in claim 11 , wherein each layer with high index of optical refraction extends in accordance with a format similar to that of the backing. |
| Claim: | 13. The film as claimed in claim 10 , wherein the film includes a layer of adhesive opposite the backing. |
| Claim: | 14. The film as claimed in claim 10 , wherein the film includes a detachment layer between the backing and the holographic layer(s) in such a way as to form a transfer. |
| Claim: | 15. The film as claimed in claim 1 , wherein it includes at least one layer with high index of optical refraction between the holographic layer(s) and each layer of printed metallised ink. |
| Claim: | 16. A process for manufacture of a metallised film, comprising: providing at least one backing; applying at least one reflective layer extending facing said backing; printing a layer of metallised ink facing said baking in order to create at least one reflective layer; wherein in order to create said layer of printed metallised ink, a printing composition is used including a hardenable binder incorporating discrete solid metallised particles exhibiting a reflective metallic appearance and a grain-size distribution, a printing composition is used that includes, by way of metallised particles, metallised pigments or metallic particles in the general form of platelets exhibiting reflective faces, each metallised particle being in the general form of a platelet, and wherein said layer of printed metallised ink is printed in contact with a layer exhibiting a surface tension greater than 40 dynes/cm and a smooth surface quality and of specular reflection greater than 50, measured in accordance with standard ISO 2813 with an angle of 60°. |
| Claim: | 17. The process as claimed in claim 16 , wherein with at least one transparent layer, named holographic layer, at least one motif is created that is capable of forming at least one image, named holographic image, which is visible by showing through and by diffraction, a layer of metallised ink is printed facing and in the format of at least one holographic image in such a way as to obtain a metallised holographic image. |
| Claim: | 18. The process as claimed in claim 16 , wherein at least one layer of metallised ink is printed by serigraphic printing. |
| Claim: | 19. The process as claimed in claim 16 , wherein at least one layer of metallised ink is printed by flexography. |
| Claim: | 20. The process as claimed in claim 16 , wherein a printing composition is used that includes at least one charge of metallised particles chosen from metallised pigments and reflective metallic particles. |
| Current U.S. Class: | 359/2 |
| Patent References Cited: | 5629068 May 1997 Miekka et al. 6447979 September 2002 Hattori et al. 6592972 July 2003 Trantoul 7360712 April 2008 Trantoul et al. 2003/0158308 August 2003 Nay et al. 2005/0266185 December 2005 Sekiya et al. 2006/0262367 November 2006 Hattori et al. 2007/0076279 April 2007 Holmes et al. 2008/0078498 April 2008 Zeik et al. 2009/0236034 September 2009 Leroy et al. 0 201 323 November 1986 2 793 726 November 2000 2 840 431 December 2003 2 867 590 September 2005 2 897 556 August 2007 |
| Other References: | French Search Report, dated Nov. 23, 2009, from corresponding French application. cited by applicant |
| Primary Examiner: | Doak, Jennifer L. |
| Attorney, Agent or Firm: | Young & Thompson |
| Accession Number: | edspgr.08526086 |
| Database: | USPTO Patent Grants |
| Language: | English |
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