Photoluminescent Gravel becomes colorless

The company produces temperature change ink is divided into three main categories: room temperature display a particular color, the color disappears after heating Photoluminescent Gravel becomes colorless, cooled immediately to restore the original color, its irreversible process of change.isplay color after heating, after cooling the glow in dark sheet color disappears, only screen printing or gravure, silk screen printing with a 200 mesh screen.