Home Glossary Photochromatic ink Photochromatic ink By - 25/01/2018 74 Ink that changes colour when exposed to UV light. Once the (UV) light source is switched off, the colour change (shift) remains visible for some time before the ink returns to its original colour. + posts Windowed Clear window Changeable Laser Image Combination watermark RELATED ARTICLESMORE FROM AUTHOR Glossary Invisible Personal Information (IPI) Glossary 3D Photo Glossary Invisible Personal Information (IPI) Glossary Hotfoil Glossary Transparent ink Glossary Unique font Related Content Designing identity documents Nick Nugent - 01/10/2015 0 Identities in the blockchain Peter Hoogendoorn - 08/10/2018 0 Designing better banknotes Dr Andrea Firth - 01/10/2011 0 The golden harmony of Fibonacci Anton Bleikolm - 01/02/2012 0 Does money make you ill? Marcus Riemann - 01/10/2014 0 Load more