PVA MANUFACTURING NO BONDING PVA SPONGE ROLLER

摘要

Conventional methods of manufacturing non-adhesive sponge rollers are expensive to manufacture and have a disadvantage in that the steel shaft is rusted and replaced with a steel shaft when the sponge roller is replaced. There is at least one longitudinal groove inside the sponge, and the steel shaft has a blade that fits the groove, so there is no fear of separation at high speed. Also, to prevent the PVA sponge from escaping to the left and right, screw the screw on both ends of the shaft and cover with a ring nut.;