1.Deatail: the prints is colorless in outside.but can show colors under the UV light.

For example:colorless-red.

2.Color:colorless-red/yellow green/verdancy/yellow/grass green/blue and so on.

3.Printing way:Offset,Silk screen,ingaglio and so on

4.Application:currency,banknote,the label of card,wine,cigarette,cosmetic and so on.

UV fluoresent ink.invisible ink