Лако-красочные материалы — производство

In the field of printing inks and graphic arts, metal pigments are used in offset, gravure, flexographic, silk-screen and textile printing processes as well as in dusting works and different coating applications (paper, textile, leather, plastic).

The metal pigments, gold bronze as well as aluminum, are supplied in the form of powders, pastes (including solvents), granules (including resins), suspensions (VMPs), color concentrates or even press-ready printing inks.

The recommended particle size depends on the printing process:

— dusting 20-40 pm

— textile printing 12-40 pm

— screen printing 10-25 pm

— rotogravure printing 10-14 pm

— flexographic printing 6-14 pm

— offset printing 2-6 pm

Also, the choice of solvents in pigment pastes and suspensions depends very much on the printing technology and ink formulation. Preferred solvents are

— Offset inks: mineral oils

— Rotogravure and flexographic inks: alcohols, esters, and aromatic hydrocar­bons

— Waterborne inks: water, alcohols, and glycols

— UV inks: reactive thinners

The main end uses are in cigarette-, food — and non-food-packaging, illustration, labels, gift wrap paper, wallpaper, tissues etc.