US 12,461,492 B2
Method for decorating a substrate
Jan Lintymer, Mamirolle (FR); and Alexis Boulmay, Valdahon (FR)
Assigned to Comadur SA, Le Locle (CH)
Filed by Comadur SA, Le Locle (CH)
Filed on Oct. 5, 2022, as Appl. No. 17/938,140.
Claims priority of application No. 21204426 (EP), filed on Oct. 25, 2021; and application No. 21207803 (EP), filed on Nov. 11, 2021.
Prior Publication US 2023/0126038 A1, Apr. 27, 2023
Int. Cl. B44C 3/00 (2006.01); G04B 19/12 (2006.01)
CPC G04B 19/12 (2013.01) [B44C 3/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for decorating a substrate which comprises the succession of the following steps:
depositing a layer of a sacrificial material over a surface of a substrate;
structuring the sacrificial material layer so as to create in said sacrificial material layer a plurality of cavities in a depth direction of the sacrificial material layer having different depths to form a decorative or technical pattern; and
eliminating the sacrificial material layer except at the location where the pattern is provided.