Process for the production of a decorative glass element

• US 20080081162A1
• Filed: 10/01/2007
• Published: 04/03/2008
• Est. Priority Date: 10/03/2006
• Status: Abandoned Application

• Current Assignee: D Swarovski & Company
• Original Assignee: D Swarovski & Company
• Inventors: Wurzl, Franz
• Application Number:
  US11/905,459
• Publication Number:
  US 20080081162A1
• Time in Patent Office: Days
• US Class Current: 428/210
• CPC Class Codes: B24C 1/04 for treating only selected parts of a surface, e.g. for carving stone or glass
• CPC Class Codes: B44C 5/00 Processes for producing special ornamental bodies
• CPC Class Codes: B44F 1/00 Designs or pictures characterised by special or unusual light effects
• CPC Class Codes: C03C 15/00 Surface treatment of glass, not in the form of fibres or filaments, by etching etching or surface-brightening compositions, in general C09K13/00
• CPC Class Codes: C03C 17/00 Surface treatment of glass, not in the form of fibres or filaments, by coating optical coatings of optical elements G02B1/10
• CPC Class Codes: C03C 17/28 with organic material C03C17/34, C03C17/44 take precedence
• CPC Class Codes: C03C 19/00 Surface treatment of glass, not in the form of fibres or filaments, by mechanical means sand-blasting, grinding, or polishing glass B24
• CPC Class Codes: C03C 2217/72 Decorative coatings
• CPC Class Codes: C03C 2217/77 Coatings having a rough surface
• CPC Class Codes: Y10T 428/24926 including ceramic, glass, porcelain or quartz layer

Abstract

A process for the production of a decorative glass element, in which a surface structure is introduced, preferably in an irregular pattern, into one or more regions of the surface of a glass body by mechanical and/or chemical treatment, wherein a coating (4, 4′) is applied region-wise to the surface of the glass body (6).

Claims

1. A process for the production of a decorative glass element, in which a surface structure is introduced into one or more regions of the surface of a glass body by mechanical, chemical or combined mechanical/chemical treatment, wherein a coating is applied region-wise to the surface of the glass body.

2. A process as set forth in claim 1 wherein said glass body is a crystal glass body.

3. A process as set forth in claim 1 wherein said glass body is at least region-wise ground.

4. A process as set forth in claim 1 wherein the mechanical treatment is effected by sand blasting.

5. A process as set forth in claim 1 wherein an adhesive which shrinks upon hardening is applied to the pre-treated regions of the surface of the glass element, the adhesive region-wise tearing the surface upon cooling and drying.

6. A process as set forth in claim 5 wherein said adhesive is heated pearl glue.

7. A process as set forth in claim 1 wherein the chemical treatment is effected by etching.

8. A process as set forth in claim 1 wherein said coating is applied at least in the region of the surface structure.

9. A process as set forth in claim 1 wherein said coating has an interference layer.

10. A process as set forth in claim 1 wherein the coating has a mirror layer.

11. A process as set forth in claim 9 wherein a mirror layer is applied at least region-wise to said interference layer.

12. A process as set forth in claim 1 wherein an interference layer is applied to the regions with a surface structure and a mirror layer is applied to the regions without a surface structure.

13. A decorative glass element whose surface has roughened regions, wherein at least the roughened region has at least region-wise a coating.

14. A glass element as set forth in claim 13 wherein the surface of said glass element has regions of differing roughness, with at least one region of low roughness and at least one roughened region of greater roughness, which has numerous depressions, wherein at least the region of greater roughness at least partially has the coating.

15. A glass element as set forth in claim 14 wherein the region of lesser roughness is substantially smooth, at any event involves a roughness depth of below 0.25 μ

m.

16. A glass element as set forth in claim 13 wherein the roughened region has depressions of a roughness depth of between 0.25 μ

m and 0.5 mm.

17. A glass element as set forth in claim 13 wherein said glass element is of a facetted nature at the front side and the roughened region is arranged at the rear side of the glass element.

18. A glass element as set forth in claim 14 wherein at least two regions of greater roughness with irregular depressions are arranged on the glass element, wherein the one region has depressions of a roughness depth of up to 0.2 mm and the other region has depressions of a roughness depth of up to 0.01 mm.

19. A glass element as set forth in claim 13 wherein the coating is at least partially adapted to be at least partially reflecting.

20. A glass element as set forth in claim 13 wherein the coating includes an interference layer at least in the roughened region.

21. A glass element as set forth in claim 20 wherein a mirror layer is arranged on the interference layer.

22. A glass element as set forth in claim 20 wherein a mirror layer is additionally arranged region-wise on the region of lesser roughness.

23. A glass element as set forth in claim 13 wherein the roughened region has numerous depressions whose depth-to-width ratio is >

1.

24. A glass element as set forth in claim 13 wherein the glass element has facettings.

25. A glass element as set forth in claim 13 wherein the roughened region occupies at least 15% of the surface area of the glass element.