Hot sales Offset Printing UV Invisible Ink
Invisible ink: it is colorless when it under the daylight or sunlight, However, you could see the beautiful color under the uv light. here is the following information.
Printing type:
The Invisible ink could divide into Offset printing, screen printing, gravurepriting.
UV Invisible Ink
Color: Colorless to Yellow, Colorless to Green, colorless to blue, colorless to red and so on.
when the invisible ink under the sunlight, it will look transparent .When the Invisible Ink under the uv light, the invisible ink which is on the left one is colorless to yellow, the right one is colorless to green.
