An exterior part comprising a stack of interference layers deposited on a surface made of chromium carbide
By depositing a thin film dielectric coating of alternating layers of TiO2 and Al2O3 on a chromium carbide substrate for watch and jewelry exterior parts, the unsatisfactory color and lifespan issues of the prior art are solved, achieving new colors and protective effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE SWATCH GRP RES & DEVELONMENT LTD
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-23
AI Technical Summary
In the watch and jewelry industry, existing coloring methods for external parts cannot display the surface texture of the substrate, and the color and lifespan are unsatisfactory. Furthermore, thin film vacuum deposition technology offers a limited range of colors.
A translucent thin-film dielectric coating is deposited on a substrate support surface made of chromium carbide. By alternately stacking layers made of TiO2 and Al2O3, interference colors with specific thickness and arrangement are formed, giving external parts a new color and providing chemical and environmental protection.
It achieves a new color range for external parts while maintaining the appearance of the substrate structure and providing chemical and environmental protection.
Smart Images
Figure CN122260759A_ABST