A PROCESS FOR PREPARING A COATING COMPOSITION FOR PAPER AND BOARD

摘要

The present invention relates to a process for preparing a dry coating composition for paper and board, wherein the process comprises mixing at least one pigment and at least one binder and pulverizing the obtained mixture, and wherein 25% to 100% of the pigment has particle size D90 from 10 µm to 50 µm before mixing with the binder. The invention relates also to the use of pigments having a particle size D90 from 10 µm to 50 µm in the production of pulverized dry coating composition for paper and board for improving the surface strength of a coating, which is made by dry coating a paper or board with said dry coating composition.