... , plastic etc., can be transparent or white background, gloss or matt, with laminated PE, special type material or ... the common 4 color CMYK) process.3. Printing techniques: offset printing, rotogravure printing, silk screen printing, flexography printing, ... material, die cutting, embossing, foil stamping, matte lamination, gloss lamination, varnish, aqueous coating, UV coating, gold/silver stamping ...