METHOD FOR IMPROVING THE PROPERTIES OF A PAPER PRODUCT AND FORMING AN ADDITIVE COMPONENT AND THE CORRESPONDING PAPER PRODUCT AND ADDITIVE COMPONENT AND USE OF THE ADDITIVE COMPONENT

摘要

The invention relates to a method for improving the properties of a paper product and to the corresponding paper product, wherein the paper product is formed from a fiber-based material. According to the invention the fines fraction is separated from chemical cellulose fiber-based pulp substantially after refining, and the cellulose fiber-based pulp from which the fines fraction has been separated is formed into the paper product in a papermaking apparatus. In addition, the invention relates to a method for manufacturing an additive component and to the corresponding additive component.