Infrared excitation pigment: The pigment itself has no color, and the surface is colorless after
printing. It emits visible light (colorless-red, yellow, blue, green) after being excited by 980nm
infrared light.
Near-infrared absorbing dye: The dye itself is a colored powder, and the surface is colorless or
light-colored after printing. The black mark can be displayed through the infrared filter of the
corresponding wavelength under the infrared camera.
Post time: May-27-2022