G7 Productivity Systems has announced the start of sales invisible under normal lighting.
VersaInk Invisible UV inks (Ultra-Violet) Florescent Ink become visible only in ultraviolet light. G7 currently offers invisible ink cartridges for Lexmark, Hewlett Packard, Canon and VersaJette inkjet printers.

According to the manufacturer, with the help of VersaInk Invisible Florescent Ink, you can easily protect documents by putting on them for later authentication the marks and marks that are visible only in ultraviolet light (blue fluorescent color). To print with this ink, simply replace the standard cartridge with a VersaInk Invisible Florescent Ink cartridge. No additional action is required.
The cost of a single cartridge, depending on the printer model, is in the range of $ 30 (Canon BCI-15MX) to $ 70 (HP 45).
via
IXBT ,
Marketwire