Method for producing a tire forming bladder

摘要

A method for producing a bladder includes shaping a mass of crude rubber containing an oil component into a specified bladder shape by a mold; vulcanizing the shaped bladder in the mold; removing the vulcanized bladder from the mold; placing the vulcanized bladder in an environment having a high temperature to keep the vulcanized bladder in the high temperature for a specified time to remove the oil component from the vulcanized bladder; and coating an outer surface of the oil component-removed bladder with a separating agent layer.