Back to results
US 12,656,736 B2Granted
Method for depositing a coating on an item, such as a clockwork component and item coated by such a method
AssigneeThe Swatch Group Research and Development Ltd
InventorsChristian Manasterski, Cédric Faure, Vladislav Spassov
Life of this patent
Estimating the term…
Abstract
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.
Claims16
An item, comprising:
- a substrate comprising a plastic or ceramic;
- and
- a coating having an interference color suitable for decorating and/or protecting the item,
- wherein the coating comprises:
- a first opaque layer of CrC having a thickness in a range of from 500 to 1000 nm, at least partially covering at least one surface of the substrate;
- a stack consisting of a first semi-transparent layer of TiO2 having a thickness in a range of from 34.8 to 41.0 nm and a second semi-transparent layer of Al2O3 having a thickness in a range of from 25.0 to 39.3 nm,
- wherein, in order, the substrate directly contacts the first opaque layer, the first opaque layer directly contacts the first semi-transparent layer, and the first semi-transparent layer directly contacts the second semi-transparent layer the second semi-transparent layer being an outer layer;
- and
- wherein, according to CIELAB standards, the coating has an L* of 37.6±1.5, a* of −7.5±0.8, and b* of −22.3±0.8, or an L* of 31.6±1.5, a* of −7.1±0.8, and b* of −22.8±0.8.
6 more elements
An item, comprising:
- a substrate comprises a plastic or ceramic;
- and
- a coating having an interference color suitable for decorating and/or protecting the item,
- wherein the coating comprises:
- a first opaque layer of CrC having a thickness in a range of from 500 to 1000 nm, at least partially covering at least one surface of the substrate;
- and
- a stack consisting of a first semi-transparent layer of Al2O3 having a thickness of 10 nm and a second semi-transparent layer of TiO2 having a thickness of 55 nm,
- wherein, in order, the substrate directly contacts the first opaque layer, the first opaque layer directly contacts the first semi-transparent layer, and the first semi-transparent layer directly contacts the second semi-transparent layer, the second semi-transparent layer being an outer layer;
- and
- wherein, according to CIELAB standards, the coating has an L* of 32.6±1.5, a* of −5.7±0.8, and b* of −27±0.8.
- wherein the first opaque layer completely covers the at least one surface of the substrate.
8 more elements
Dependencies are inferred from the claim text.