Fugitive Inks
For cheque book printing

Invisible Inks 
Colour glows under UV light

Magic Inks
For children books. Colours visible only after applying water

Alkali Sensitive Ink
Colour changes from yellow to black after application of alkali solution

Penetrating Black
For numbering Cheque book.

Coin Reactive Ink
Print colour visible only after rubbing the surface with a coin

Pen Reactive Ink
Print colour visible only after using a Pen