US 11,702,548 B2
Method for producing pigment fragments with a predefined internal and/or external contour, and pigment fragments
Christian Fuhse, Otterfing (DE); Manfred Heim, Bad Tölz (DE); Patrick Renner, Reichersbeuern (DE); Michael Rahm, Bad Tölz (DE); Thomas Mang, Holzkirchen (DE); Christoph Mengel, Holzkirchen (DE); Peter Schiffmann, Munich (DE); Maik Rudolf Johann Scherer, Grainau (DE); and Christoph Hunger, Hausham (DE)
Assigned to GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich (DE)
Appl. No. 16/648,895
Filed by GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich (DE)
PCT Filed Jun. 5, 2018, PCT No. PCT/EP2018/000289
§ 371(c)(1), (2) Date Mar. 19, 2020,
PCT Pub. No. WO2019/057321, PCT Pub. Date Mar. 28, 2019.
Claims priority of application No. 10 2017 008 831.4 (DE), filed on Sep. 21, 2017.
Prior Publication US 2020/0283636 A1, Sep. 10, 2020
Int. Cl. B32B 43/00 (2006.01); C09C 3/04 (2006.01); B42D 25/378 (2014.01); C09D 11/037 (2014.01); B31F 1/07 (2006.01); B42D 25/40 (2014.01); B42D 25/425 (2014.01); B42D 25/369 (2014.01); B42D 25/373 (2014.01); B44C 1/22 (2006.01); B44C 1/24 (2006.01); B32B 27/10 (2006.01)
CPC C09C 3/04 (2013.01) [B31F 1/07 (2013.01); B32B 43/006 (2013.01); B42D 25/378 (2014.10); B42D 25/40 (2014.10); B42D 25/425 (2014.10); C09D 11/037 (2013.01); B31F 2201/00 (2013.01); B32B 27/10 (2013.01); B42D 25/369 (2014.10); B42D 25/373 (2014.10); B44C 1/227 (2013.01); B44C 1/24 (2013.01); Y10T 156/11 (2015.01)] 15 Claims
OG exemplary drawing
 
1. A method for producing pigments having a specified contour, the method comprising the steps of:
creating a pigment layer on a starting substrate;
providing an intermediate substrate to the pigment layer, such that the pigment layer adheres at least in sections to the intermediate substrate;
separating the intermediate substrate from the starting substrate;
structuring the pigment layer into a plurality of the pigments; and
detaching the plurality of pigments from at least one of the intermediate substrate and the starting substrate.