Apparatus and method for a sub microscopic and optically variable image carrying device

A method for forming an optically variable image on a substrate, comprising:

• A) applying a curable composition to at least a portion of the substrate;
• B) contacting at least a portion of the curable composition with an optically variable image forming device;
• C) curing the composition;
• D) optionally depositing a layer of a transparent high refractive index material, a metallic layer, or both on at least a portion of the cured composition,
• Wherein the optically variable image forming device comprises an optically transparent embossing foil, sheet, or both carrying the optically variable image,
• Wherein the optically variable image forming device is capable of drying or curing the curable composition, and
• The foil, sheet, or both comprises an optically transparent fluoropolymer
• Wherein said optically transparent fluoropolymer is at least one material selected from the group consisting of a perfluoroethylene propylene copolymer, polytetrafluoroethylene;
• a copolymer comprising tetrafluorethylene (TFE) and a perfluorinated co-component;
• a copolymer comprising ethylene and tetrafluorethylene (EFFE);
• a polyvinylidenfluoride (PVDF) copolymer and a PVDF-homopolymer;
• a copolymer comprising tetrafluorethylene and hexafluorpropylene (HFP);
• and a terpolymer comprising TFE, HFT, and vinylidenfluoride (VDF) units.