The use of composite filler in the production of polygraphic cardboard in jsc “Slonim cardboard-paper mill “Albertin”

The results of the researches of the effect of composite filler on the properties of the composite polygraphic cardboard NVP-0.5 obtained in JSC «Slonim cardboard-paper mill «Albertin» on a cardboard machine CM-2 are presented in the article. The proposed composite filler is obtained from available raw materials and makes it possible to replace the imported (kaolin) completely. It is shown that the filler allows to increase whiteness of the polygraphic cardboard NVP-0.5 by 5–8% and that of the ash content in structure by 17.6–18.2%