MANUAFCTURING METHOD OF GOLF BALL

摘要

PURPOSE: A method for manufacturing golf balls and golf balls manufactured thereby are provided to increase the flight distance and spin of golf balls. CONSTITUTION: A method for manufacturing golf balls is as follows. The performance of a golf ball is optimized. Gamma rays are irradiated to core(7). A first cover is injected to the outer circumference of the core(8). Gamma rays are irradiated to the first cover(9). A second cover is injected to the outer circumference of the first cover(10). Gamma rays are irradiated to the second cover(11). A third cover is injected to the outer circumference of the second cover(12). Gamma rays are irradiated to the third cover(13).