Method for producing embossed metallic flakelets
US6168100A · kind A · utility
61Cited by
22References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Mar 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved method of preparing embossed metallic flakelets for a hologram pigment improves productivity through a simpler process. A metallic foil 12 is first pressed between a cooperative pair of dies 10 having mutually complementary embossed patterns to thereby transfer to the surfaces of the metallic foil 12 the embossed pattern of the dies 10. Finally, the pulverized metallic flakelets are mixed with predetermined other ingredients to make a hologram pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.