FIELD: textiles, paper.
SUBSTANCE: invention relates to an anti-counterfeiting sheet, containing fibers, an anionic polymer in an amount of from 5 to 45% by dry weight relative to the total dry weight of fibers having a glass transition temperature of above -40°C, where the said anionic polymer comprises a polymer having carboxyl groups, and a basic cationic flocculant in an amount of from 1 to 5% by dry weight relative to the total dry weight of the fibers. The invention also relates to a method of manufacturing an anti-counterfeiting sheet and a document with anti-counterfeiting.
EFFECT: invention enables to create anti-counterfeiting sheets having a longer service life due to resistance to creasing and double folding.
18 cl, 13 ex, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COUNTERFEIT PAPER | 2020 |
|
RU2828018C2 |
| SHEET WITH COUNTERFEIT PROTECTION COMPRISING COEXTRUSION SUBSTRATE | 2008 |
|
RU2508990C2 |
| BINDING AGENTS FOR FIBROUS SHEETS | 2002 |
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| ARTIFICIAL CELLULOSE FIBRE AND NONWOVEN PRODUCT OR MATERIAL CONTAINING CELLULOSE FIBRE | 2017 |
|
RU2732131C1 |
| FUNCTIONAL FIBRE FOR COUNTERFEIT PROTECTION | 2007 |
|
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| SUSPENSIONS OF LATEX-TREATED FILLER FOR USE IN PAPER MAKING | 2008 |
|
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| POLISILICATE MICROGELS | 1998 |
|
RU2201395C2 |
| PAPER SHEET OF HIGH WEAR RESISTANCE FOR PRODUCING BANKNOTES | 2012 |
|
RU2617485C2 |
| FIBROUS POLYMER FOR PAPER PROTECTION AGAINST COUNTERFEIT, METHOD OF ITS PRODUCTION, PAPER PROTECTED AGAINST COUNTERFEIT INCLUDING SAID MATERIAL AND ARTICLE (IMPORTANT DOCUMENT) | 2014 |
|
RU2568707C1 |
| SIZING COMPOSITION, ITS APPLICATION AND A METHOD FOR MANUFACTURING PAPER, CARDBOARD OR A SIMILAR MATERIAL | 2015 |
|
RU2669629C2 |
