Method of producing pigment chips having predetermined internal and / or external contours and pigment chips
By generating a pigment layer on the starting substrate and separating it from the intermediate substrate, and by using a raised structure and an adhesive layer to protect the pigment layer, the problem of accurately defining the pigment outline is solved, enabling efficient production and fragmentation of high-purity, complex-shaped pigments, which is suitable for high-precision printing.
CN111094463BActive Publication Date: 2026-07-24GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
- Filing Date
- 2018-06-05
- Publication Date
- 2026-07-24
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Figure CN111094463B_ABST
Abstract
A method of producing pigment pieces (1) having a predetermined profile, the method comprising the steps of: producing a pigment layer (210) on a starting substrate (20); peeling from the starting substrate (20); and structuring the pigment layer (210) to form a plurality of pigment pieces (1); characterized in that the pigment layer (210) is brought into contact with an intermediate substrate (31), wherein at least a portion of the pigment layer (210) adheres to the intermediate substrate (31); and in that the intermediate substrate (31) and the starting substrate (21) are separated.
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