FIELD: paper production.
SUBSTANCE: invention relates to paper production, in particular to the production of security paper with biocidal properties, such as banknote paper. Proposed composition for surface treatment of paper containing 12-18 wt.% polyurethane dispersion, 0.3-1.2 wt.% 2-methyl-4-isothiazolin-3-one, 0.9-2.1 wt.% glycerin, 0.5-1.4 wt.% cross-linking agent based on polyaziridine and water. The invention also relates to paper made using said surface treatment composition.
EFFECT: providing paper with biocidal properties while maintaining good physical and mechanical characteristics.
2 cl, 2 tbl
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