foolium - kihiline materjal, millelt surutrükki rakendades kantakse nahale, paberile, köite- vm materjalile õhuke värvi- (või metalli-) kihist kujutis. Värvikihi ja alusmaterjali (kalka, pergamiini, lavsaankile) vahel on värvi eraldumist soodustav kergesti sulav vahekiht, värvikihi peal on selle trükitavale materjalile kleepumist soodustav termoliimikiht.
32.09 Varnishes and lacquers; distempers; prepared water pigments of the kind used for finishing leather; paints and enamels; pigments in linseed oil, white spirit, spirits of turpentine, varnish or other paint or enamel media; stamping foils; colouring dyes or other matter in forms or packings of a kind sold by retail:
02 Printing foils