| 摘要 |
FIELD: printing industry. ^ SUBSTANCE: counterfeit-proof paper is proposed to manufacture counterfeit-proof documents, such as banknotes, identity cards or other similar valuable papers. Secured paper has specified thickness, as well as a section with thickness below specified, produced in process of paper web manufacturing due to application of net with appropriate relief structure in paper-making machine, or by limitation of paper web dehydration extent at this section. Secured paper also has a hole, which is arranged on specified section and has dimensions that are less than dimensions of this section. ^ EFFECT: paper has high extent of counterfeit protection. ^ 28 cl, 12 dwg |
