METHOD FOR MANUFACTURING NATURAL RUBBER

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a natural rubber excellent in dispensability of a viscosity stabilizer providing a good viscosity stabilization effect and uniform qualities. SOLUTION: A viscosity stabilizer is added to a crude natural rubber by immersing and/or spraying before drying the rubber. In the manufacture of an RSS-type natural rubber, a viscosity stabilizer is preferably added by immersing and/or spraying in the steps after the coagulation step and before the smoking step. In the manufacture of a TSR-type natural rubber, a viscosity stabilizer is preferably added by immersing and/or spraying before the drying step.