Product Main

Specifications

Originally colorless presents visible light (400-800nm) in the sunlight or under the long wave ultraviolet ray illumination, after the evacuation photosource can return to original state into the colorless printing ink, the color has purplish red, blue, is yellow.
 
      
Product name
Change countenance result
 Printing ways
Remarks
The sunlight changes color Purplish red
  none—Purplish red
 screen, offset  
The sunlight changes color Orange red none—Orange red    
The sunlight changes color blue
none—blue
The sunlight changes color yellow
none—yellow