Production Principle
1. PVD Vacuum Ion Coating (Basic Coloring)
In a high vacuum environment of 10⁻³ Pa, through medium-frequency magnetron sputtering or multi-arc ion plating technology, high-purity titanium, chromium, zirconium and other metal targets are excited into plasma state and deposited directionally onto the surface of stainless steel substrate, forming a dense nano-ceramic film layer with a thickness of approximately 0.15–1 μm. The hardness of a single color layer can reach above HV800–1800, forming a molecular-level bond with the substrate and showing excellent adhesion performance.
2. Precise Masked Partition Technology (Two-color Molding)
The core of the two-color effect lies in "precise partitioning". On the same sheet of material, different color areas are isolated through different process schemes:
· Fixture Masking Method: Using self-developed metal fixtures combined with nano anti-reflective coating to precisely protect the first color area. After the first round of PVD coloring, the masking is removed, and then the exposed area is colored again for the second round of coloring to achieve integrated two-color molding. This is particularly suitable for high-end materials with fine lines and straight boundaries.
· Component Coloring Assembly Method: Different color areas are separated into independent components for coloring separately. Then, through precise mechanical structures or seamless welding processes, they are combined into a whole, resulting in higher yield and more stable color difference control.
· Laser Depostription/Etching Color Separation Method: First, the base color is fully coated. Then, using laser selective removal to expose the original base color of the substrate, or etching patterns and then performing secondary coloring, is suitable for fine two-color effects such as text logos and complex patterns.
3. Color Presentation Principle
The dual-color effect is formed by the inherent color of the PVD film layer (such as TiN presenting a golden color, TiC presenting a black color, and TiCN presenting a rose gold color) and the optical interference effect of the film. During the production process, by precisely controlling the ratio of different regions of the target materials, the ratio of reaction gases (N₂/CH₄/O₂), and the deposition parameters, a stable and clear color zoning effect can be achieved.
4. Post-processing - Anti-fingerprint Coating
After the dual-color molding process is completed, a nano-level AF anti-fingerprint coating is applied to the surface, which not only provides effective protection for the dual-color layer but also gives the surface the properties of being hydrophobic and oleophobic, as well as easy to clean. Subsequently, through low-temperature plasma densification treatment, the molecular-level fusion at the junction of the dual-color layer is further strengthened, which can significantly enhance the weather resistance during long-term use and delay the occurrence of fading and oxidation phenomena.
Core Product Advantages
1. Dual-color aesthetics, sharp and precise boundaries
Black gold, champagne silver, rose gold + gun gray, titanium gold + matte black, etc. - a total of 180+ standard colors can be freely combined. The boundary line between the two colors is precisely controllable, with a straight line precision of ≤ 0.1mm. There is no smudging, no sawtooth edges, no color bleeding, presenting a high-end customized refined texture.
2. Molecular-level bonding, never peeling off
The PVD film layer forms atomic-level bonding with the stainless steel substrate through ion injection, rather than physical coverage and adhesion; the film layer is integrated with the substrate, and there are no problems such as coating peeling, shedding, blistering, etc. that are common in traditional coating processes.
3. Exceptionally strong anti-corrosion and salt spray resistance
The dense ceramic film layer forms a complete physical isolation barrier, with a neutral salt spray test duration of 500~800+ hours without rusting, and it is resistant to high and low temperatures (-40℃~120℃), resistant to oil stains, sweat, and chemical cleaners, suitable for harsh environments such as coastal, high humidity, and high-frequency usage.
4. Extremely high design freedom
It supports the realization of "color + texture" dual zoning expression on the same sheet of material - for example, mirror titanium gold area + brushed gun gray area, sandblasted rose gold area + etched black titanium area, providing designers with an unprecedented creative space.
5. Environmentally friendly and safe, globally compliant
The entire process is vacuum physical deposition, without cyanide compounds or heavy metal wastewater discharge; it complies with international environmental protection standards such as RoHS and REACH, and can be directly in contact with the skin, suitable for 3C wearable devices, medical equipment shells, etc. in safety-sensitive fields.
6. Retains the original metal texture
The film layer is ultra-thin and transparent/semi-transparent, does not cover the original textures such as brushed, mirror, sandblasted of the stainless steel substrate, and under the dual-color contrast, the metal texture becomes more transparent and advanced.
Available Colors & Finishes
Classic Dual-color Combinations:
Classic Luxury: Black Titanium + Titanium Gold / Black Gold + Champagne Gold / Black Titanium + Rose Gold
Minimalist Modern: Gun Grey + White Steel / Matte Black + Brushed Silver / Titanium Gold + Silver
Retro Premium: Bronze + Dark Bronze / Red Copper + Matte Black / Coffee Gold + Gun Grey
Avant-garde Individuality: Chromatic Rainbow + Black Titanium / Gemstone Blue + Rose Gold / Green Jade + Bronze
Warm Color Schemes: Champagne Gold + Rose Gold / Zirconium + Coffee Gold / Titanium White + Purple Gold
Champagne Gold + Rose Gold / Zirconium + Coffee Gold / Titanium White + Purple Gold
Material: 201, 304, 316L, 430, etc. Customization is supported.
Size: Standard 1220×2440mm, 1500×3000mm. Customized special sizes are also available.
Thickness: 0.3mm ~ 3.0mm, Customization available
Optional surface treatment with patterns: Brushed (straight pattern/chaotic pattern/ribbed pattern), Mirror finish (8K), Sandblasted, Chaotic pattern, Etched, Embossed, Hammered pattern, and Textured, etc. Different texture combinations can be specified for the dual-color areas.
Application Scenarios
Building exteriors and curtain walls
High-end commercial complex curtain wall decorative panels, building entrance door edging, balcony railings decoration, outdoor art installations - the dual-color combination gives the building facade a unique identity and layering effect.
Elevators and public transportation
Elevator car interior and exterior panels, elevator door casings, escalator side panels, subway/high-speed rail platform metal decorations - classic black and gold, champagne rose gold, etc. dual-color combinations enhance the space quality and are wear-resistant and fingerprint-resistant, suitable for frequent public use.
Interior high-end decoration
Hotel lobby background walls, banquet hall wall and ceiling, partitions screens, column edging, door and window casing - dual-color stainless steel injects a light luxury style into the space, replacing traditional stone and wood, and is lighter and more durable.
Commercial office spaces
Brand flagship store storefront display cabinets, jewelry and watch counters, shopping mall wayfinding signs, high-end dining space decoration - dual-color design strengthens brand visual recognition, attracts attention and enhances the consumption experience.
Home hardware and kitchen and bathroom
High-end metal furniture panels, cabinet handles and skirting lines, bathroom decorative panels, lighting frame, smart door lock panels - dual-color details enhance the quality of home decoration, moisture-proof, anti-corrosion and easy to clean.
3C electronics and smart wearables
Mobile phone frame and back panel, smart watch case and strap, headphones shell, laptop panel - PVD dual-color gives electronic products an "luxury" appearance, extremely hard and wear-resistant to meet daily usage strength.
Automotive interior and exterior
Automotive central control panels, gear position decorative rings, speaker grille covers, door greeting pedals - dual-color metal texture perfectly integrates with automotive interior design language, resistant to vehicle oil stains, high and low temperature.