Chameleon UVC photochromic dye causes color change reversibly by light. Exposure to ultraviolet rays (sunlight) causes color formation while the blockage of light makes it return to its original color. Since it is very sensitive to the external environment, it becomes encapsulated in micro synthetic resin with several ㎛ to hundreds ㎛ in diameter for protection and stability increase.

Bichrom P Series is a reversible photochromic microcapsule that its color in lightless state changes to other color once exposed to light. Since it is very sensitive to the external environment, it becomes encapsulated in micro synthetic resin with several ㎛ and hundreds ㎛ in diameter for protection and stability increase.

Note: Since photochromic capsule dye products come in 2~5㎛, the outer wall of capsule is damaged if they go through a milling machine or high-speed disperser with cutters, affecting the feature of color changing.

Product features
Solvent resistance: Color-changing dye used in photochromic capsules is sensitive to aliphatic solvent with a few carbons and resistant to aliphatic or aromatic solvent with a lot of carbons.

Thermal resistance: If high temperature needs to be applied, less than 10 minutes at 230℃ is recommended. A prolonged operation at high temperature higher than 75℃ must be avoided because thermochromic organic matters may be resolved at higher than 80℃.

Light resistance: Photochromic products have the grade 1 light fastness, so extended exposure to sun may considerably reduce its color-changing effect.