Photochromic pigment are photochromic microcapsules in a powder form . they are specifically design for use in non aqueous based ink systems although their use is not limited . it can be used to formulate non aqueous base flexographic,uv,silk-screen,offset,epoxy and gravure ink formulatios. Photochromic pigments are colorless in inactivated state,and color change when exposed to ultraviolet light source. it will respond to natural sunlights or 365nm black lights.
Color: red,yellow,blue,green,orange,deep blue, violet.
Particle size: <8micron
Shelf life: 2year
Solids: 98% +/-2%