The luminous ink is a new ink type material used to mark invisible markings on the back of playing cards, only with the read filter film or the luminous ink reader you can read the marks.
As a professional luminous ink supplier, we have many types of invisible ink for sale. Usually, different playing cards need to be marked with different luminous ink, so we developed many excellent luminous ink solution to match different needs. All of them can last longer and the marks made with them are more secret and clearly under the invisible ink reader.
To mark more perfect marked playing cards, we have developed various good luminous ink juice. If you want to mark playing poker cards by yourself, the luminous ink we supply will be your best choice.