FIELD: textile, paper.
SUBSTANCE: secured paper contains at least one through hole with specific irregularities at edge area. Paper cloth having thin areas in the form of contour with required shape of at least one through hole, is moulded in casting box. After formation of sheet, water is removed from paper cloth, besides area limited by thin sections is removed from paper cloth by means of external forces.
EFFECT: proposed method for manufacturing of paper cloth combines high extent of counterfeit protection of holes made in process of paper manufacturing, with high guarantee of their reproducibility in process of manufacturing.
21 cl, 6 dwg
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