The company says that, in contrast to other similar existing inks which show as a traditional blue/violet colour, 3160 fluoresces a distinctive red under u/v light, making it "much more difficult" to copy. It is also MEK-free, and gives off minimal odour.
Kate Rattigan, Linx ink product executive, says: "Counterfeiters have found ways to copy blue and violet UV codes. Linx Clear security ink 3160 is made using a unique red colourant, making it very difficult to copy. Primary packaging manufacturers can add their own discreet codes to products, ensuring there is no confusion between this and other codes."
