Process for producing a polytetrafluoroethylene molded article using a lubricant, a belt press type dewatering device and a dewatering method of solid wetting material (PROCESS FOR PRODUCTION OF POLYTETRAFLUDOROETHYLENE MOLDING USING LUBRICANT, BELT-PRESS DEHYDRATOR, PROCESS FOR DEHYDRATION OF SOLID WET MATTERS)

摘要

Adding a lubricant to an aqueous dispersion of PTFE (polytetrafluoroethylene), coagulating PTFE and a swelling agent to obtain a lubricant-containing PTFE wet powder, a step of molding the wet powder to obtain a molded article, Containing PTFE molded product.;This method can reduce the number of processes. Further, the present invention relates to a dewatering method of a solid wetted matter, characterized in that at least one of the pair of foliar belts is oscillated in the width direction of the belt, And a dewatering device.