METHOD FOR DEPOSITING A COATING ON AN ITEM, SUCH AS A TIMEPIECE COMPONENT AND ITEM COATED BY SUCH A METHOD

• Main Authors: SPASSOV, Vladislav, FAURE, Cédric, MANASTERSKI, Christian
• Format: Patent
• Language: English; French; German
• Published: 25.05.2022
• Subjects: BRACELETS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COINS; DIFFUSION TREATMENT OF METALLIC MATERIAL; HABERDASHERY; HOROLOGY; HUMAN NECESSITIES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JEWELLERY; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; MECHANICALLY-DRIVEN CLOCKS OR WATCHES; METALLURGY; OTHER PERSONAL ADORNMENTS; PHYSICS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS

Un aspect de l'invention concerne un article (1) comportant un substrat (10) et un revêtement présentant une couleur avec un effet interférentiel pour la décoration et/ou la protection dudit article (1), ledit revêtement comportant : une première couche (11) opaque recouvrant au moins partiellement au moins une surface du substrat (10) ; un empilement (20) d'au moins deux couches semi-transparentes (12, 13) déposée par un procédé ALD recouvrant ladite première couche (11) ; l'empilement (20) présentant une épaisseur (e2) fonction de ladite couleur avec un phénomène d'interférence dudit revêtement. An item including a substrate and a coating having a colour with an interference effect for the decoration and/or the protection of the item, the coating including: a first opaque layer covering at least partially at least one surface of the substrate; a stack of at least two semi-transparent layers deposited by an ALD method covering the first layer; the stack having a thickness depending on the colour with an interference phenomenon of the coating.