A METHOD FOR PRODUCING PAPER WITH BIOSTATIC PROPERTIES AND DEVICE FOR PERFORMING THIS METHOD

摘要

The present invention relates to a method for producing cardboard paper or cardboard itself with biostatic properties based on mixtures of recycled paper or waste paper pulp consists in the fact that the waste paper suspended mass is formed from recycled material in the waste paper preparation system. This suspended mass is ground, purified from contaminants and then dewatered on the wire. The final product is formed into a single- or multi-layer web of paper or paperboard. The web is subjected to a preliminary treatment consisting in drying, the surface sealing and the final stage of drying completely. The method is characterized by that the aqueous suspension of TiO2 at a concentration of not more than 1 % is applied to the paper web during drying process and forming a coating of TiO2 with biocidal properties. The invention also provides equipment according to the invention consisting of a line of waste paper preparation equipped with pulper, mills, pumps, sorters and a paper machine equipped with: infusion sieve, press, drying cylinders and rewinder according to the invention.