Process for preventing scale formation in a paper-making process

摘要

A process for preventing scale formation in a paper-making process which comprises adding crystals as seed for crystallization which have the same or similar form to a scale substance formed in paper-making process into process water of stuff and stock preparation parts or wire parts, making precipitate the scale-forming components in the process water onto the crystal surfaces, coming in wet web through the conditions that the particles distribute among furnish in the wire parts, and removing the scale-forming components as the particles of crystals from the system of the paper-making process together with the produced paper. Scale formation in the stuff and stock preparation parts or in the wire parts can be effectively prevented in a paper machine.