The properties of Chameleon Pearlescent Pigments
The properties of Chameleon Pearlescent Pigments stem from their microscopic structure, rather than from traditional chemical pigments. Their core principle is the principle of optical interference.
- Angular Color Effect
▶ This is the most core characteristic. The color of the pigment changes significantly and reversibly when viewed from different angles. For example, a green color viewed from the front might shift to blue or purple from the side.
▶ Principle: The pigment is composed of multiple, ultra-thin layers of semiconductor metal oxide (such as mica sheets coated with silica). When light strikes the pigment, some light is reflected by the surface layer, while another part passes through and is reflected by the bottom layer. These two reflected beams interfere due to a slight optical path difference. This optical path difference changes with the viewing angle, amplifying specific wavelengths and attenuating others, resulting in different colors.
- Pearlescent and Metallic Luster
▶ Due to its flake-like structure, it produces a soft, deep pearlescent effect similar to natural pearls, while also possessing a strong metallic texture. The visual effect is both gorgeous and futuristic. 3. Chemical Inertness and Stable Physical Properties
▶ They typically exhibit excellent heat resistance, light resistance (UV resistance), and weather resistance, and are not susceptible to fading or yellowing due to light or temperature fluctuations.
▶ They also possess excellent chemical stability, are resistant to acids and alkalis, and are not susceptible to chemical reactions with substrates.
- Non-toxic and Environmentally Friendly
▶Most Pearlescent Pigments do not contain heavy metals and comply with various environmental standards (such as REACH and FDA). They can be used in cosmetics, toys, and food packaging.
- Dispersibility and Applicability
▶ They are micron-sized flake powders that are easily dispersed in various media, such as coatings, inks, and plastics. They can be used in both water-based and oil-based systems.