How to make luminous ink at home
Invisible ink is also called luminous ink. It is not easy to make luminous ink at home. There are 4 main compounds blending together, becoming luminous ink and working with red back playing cards. Once you write luminous ink on the back of playing cards, a chemical reaction occurred; after the luminous ink become dry, they will disappear. And you got a deck of normal playing cards. Only when you using infrared filter and marked cards contact lenses can you see these invisible markings.
GS Marked Cards has mastered the rules to create luminous ink. We make large quantities of luminous ink every month and sell them as kits, and sell them to customer directly. In this way, buyer can experience the creation part get the invisible ink marked cards they want in a cheaper way.