Van Son Liquid Inks, a full subsidiary of the Royal Dutch Printing Ink Factories Van Son, is introducing two new inks, NK and AP, to its Aqua Base Plus flexo water-based ink series at Flexo 2005.      The NK formulation is suitable for printing napkins, paper towels and other tissue stocks, whereas the AP formulation is designed for the use in on-site ink dispensing systems.      The AP inks are basic concentrates which, in combination with specially prepared additives, can be adjusted for ...