Preparation Of Pigments Having A Defined Size And Shape
Patent No. EP3988321 (titled "Preparation Of Pigments Having A Defined Size And Shape") was filed by Giesecke & Devrient on Oct 18, 2021. The application was issued on Mar 12, 2025.
Patent Summary
A process for producing pigments with controlled surface features that enhance printing performance. The process employs a method of creating three-dimensional surface structures on the substrate using embossing techniques, followed by the application of a pigment layer. The embossing process creates controlled surface features that prevent unwanted pigment coverage during printing, while the pigment layer provides the desired optical properties.
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Date
Description
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EP3988321
- Application Number
- EP21020517A
- Filing Date
- Oct 18, 2021
- Status
- Granted And Under Opposition
- Feb 7, 2025
- Publication Date
- Mar 12, 2025
- External Links
- Slate, Register , Google Patents