| 摘要 |
FIELD: pulp-and-paper industry. ^ SUBSTANCE: paper/cardboard with protection means comprises paper base and cardboard base having one or more layers of cellulose fibers and surface-processed layer adjoining at least one side of paper/cardboard base, of which layers at least one layer is part of at least one local deviation defining distinctive sign on paper/cardboard. Local deviation comprises locally compressed material and locally surface-processed layer having thickness exceeding thickness of respective surface-processed layer disposed around and outside indicated layer. Method for producing of paper/cardboard with protection means is also described. ^ EFFECT: increased efficiency in producing of low-cost surface- processed cardboard and paper protected from counterfeit, provision for obtaining of desirable precise distinctive signs on paper or cardboard. ^ 20 cl, 4 dwg, 3 ex |
