Metallized cutlery and tableware
View Patent ↗A plastic cutlery item, fabricated primarily from a plastic material, such as polystyrene, having a metallic coating that imparts to this cutlery item the appearance of metal cutlery or silverware. The plastic cutlery or tableware items are molded using traditional injection molding techniques, and subjected to a vacuum metallizing process in an individualized non-contiguous manner, where a thin metallic layer is deposited on at least one of their surfaces. The resultant items simulate the appearance of solid metal cutlery or tableware. In the most preferred embodiment of the invention the plastic cutlery or tableware items are molded from a light-transmitting grade of Polystyrene resin and are coated with a thin stainless steel layer through vacuum sputtering deposition on only one of the surfaces.
1. A metallized plastic food service item, comprising:
a plastic tableware article having a display surface and an underside, said plastic tableware article being adapted for placement on a table surface in a traditional table-setting presentation with said underside facing down towards said table surface and said display surface facing upwards; and
a thin metallic coating deposited on said plastic tableware article, wherein said thin metallic coating is of a sufficient thickness to impart a reflective metal-like appearance to the plastic tableware article, said thickness being less than about 2000 nanometers and wherein said thin metallic coating is deposited by a vacuum deposition process.
2. The metallized plastic food service item according to claim 1 , wherein said thin metallic coating is at least one metal selected from the group consisting of: silver, steel, stainless steel, chromium, aluminum, copper and gold.
3. The metallized plastic food service item according to claim 1 , wherein said thin metallic coating is less than 1000 nanometers in thickness.
4. The metallized plastic food service item according to claim 1 , further comprising a thin overcoat of a curable clear coating on said thin metallic coating.
5. The metallized plastic food service item according to claim 1 , wherein said plastic tableware article is an implement for handling and consuming food, selected from a group consisting of fork, knife, and spoon.
6. The metallized plastic food service item according to claim 1 , wherein said plastic tableware article is composed of a light transmitting plastic material.
7. The metallized plastic food service item according to claim 1 , wherein said plastic tableware article is composed of polystyrene.
8. The metallized plastic food service item according to claim 1 , wherein said plastic tableware article is obtained from a plastic resin composition which is substantially free of mineral oil and wax.
9. The metallized plastic food service item according to claim 1 , wherein said metallized plastic food service item has an optical density of less than 2.0.
10. The metallized plastic food service item according to claim 1 , wherein said plastic tableware article is produced by injection molding.
11. The metallized plastic food service item according to claim 1 , further comprising cosmetic surface features for enhancing the reflective metal-like appearance of said plastic tableware article.
12. The metallized plastic food service item according to claim 1 , wherein said vacuum deposition process is a sputtering deposition process.
13. A metallized plastic food service item, comprising:
a plastic tableware article having a display surface and an underside, said plastic tableware article being adapted for placement on a table surface in a traditional table-setting presentation with said underside facing down towards said table surface and said display surface facing upwards; and
a thin metallic coating deposited on the display surface of said plastic tableware article, wherein said thin metallic coating is of a sufficient thickness to impart a reflective metal-like appearance to the plastic tableware article, said thickness being less than thousands of nanometers and wherein said thin metallic coating is deposited by a vacuum deposition process.
14. The metallized plastic food service item according to claim 13 , wherein said thin metallic coating is at least one metal selected from the group consisting of: silver, steel, stainless steel, chromium, aluminum, copper and gold.
15. The metallized plastic food service item according to claim 13 , wherein said thin metallic coating is less than 1000 nanometers in thickness.
16. The metallized plastic food service item according to claim 13 , further comprising a thin overcoat of a curable clear coating on said thin metallic coating.
17. The metallized plastic food service item according to claim 13 , wherein said plastic tableware article is an implement for handling and consuming food, selected from a group consisting of fork, knife and spoon.
18. The metallized plastic food service item according to claim 13 , wherein said plastic tableware article is composed of a light transmitting plastic material.
19. The metallized plastic food service item according to claim 13 , wherein said plastic tableware article is composed of polystyrene.
20. The metallized plastic food service item according to claim 13 , wherein said metallized plastic food service item has an optical density of less than 2.0.
21. The metallized plastic food service item according to claim 13 , wherein said plastic tableware article is produced by injection molding.
22. The metallized plastic food service item according to claim 13 , wherein said plastic tableware article is obtained from a plastic resin composition which is substantially free of mineral oil and wax.
23. The metallized plastic food service item according to claim 13 , further comprising cosmetic surface features for enhancing the reflective metal-like appearance of said plastic tableware article.
24. The metallized plastic food service item according to claim 13 , wherein said vacuum deposition process is a sputtering deposition process.
25. A tableware article for handling and consuming food, comprising a light transmitting plastic material and having a plurality of surfaces, wherein at least one surface amongst said plurality of surfaces is cosmetically accentuated by a thin metal layer; said thin metal layer being deposited by a sputter deposition process, whereby a reflective metal-like appearance is imparted to at least a portion of said tableware article, and said layer of said portion being less than about 2000 nanometers.
26. A metallized plastic food service article produced by the process comprising the steps of:
molding a plastic tableware article by the process of injection molding, wherein said plastic tableware article has a first surface and a second surface;
placing said plastic tableware article into a vacuum metallizing unit with said first surface facing said vacuum metallizing unit; and
depositing onto said first surface of the plastic tableware article, a thin metallic coating, by a vacuum deposition process, of sufficient thickness to impart a reflective metal-like appearance to the plastic tableware article, wherein said thickness being less than thousands of nanometers.
27. The metallized plastic food service article produced by the process according to claim 26 , further comprising the steps of spraying a clear coating and curing said clear coating.
28. The metallized plastic food service article produced by the process according to claim 26 , wherein said vacuum deposition process is a physical vapor deposition.
29. The metallized plastic food service article produced by the process according to claim 28 , wherein said physical vapor deposition is a sputtering vapor deposition.
30. The metallized plastic food service article produced by the process according to claim 29 , wherein said sputtering deposition process utilizes plasma generated by mixtures of Argon and Nitrogen.
31. The metallized plastic food service article produced by the process according to claim 26 , wherein said thin metallic coating is at least one metal chosen from the group of metals consisting of silver, steel, stainless steel, chromium, aluminum, copper and gold.
32. The metallized plastic food service article produced by the process according to claim 26 , wherein said plastic tableware article is molded from a light transmitting plastic material with a color tint.
33. The metallized plastic food service article produced by the process according to claim 26 , wherein said thin metallic coating is less than 1000 nanometers in thickness.
34. The metallized plastic food service item according to claim 1 , wherein said thin metallic coating is less than about 500 nanometers in thickness.
35. The metallized plastic food service item according to claim 1 , wherein said thin metallic coating is less than about 200 nanometers in thickness.
36. The metallized plastic food service item according to claim 13 , wherein said thin metallic coating is less than about 500 nanometers in thickness.
37. The metallized plastic food service item according to claim 13 , wherein said thin metallic coating is less than about 200 nanometers in thickness.