| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tire manufacturing method and a tire in which rolling resistance performance can be improved by making thickness at a tread part of the tire optimal and suppressing a heating value in the tread part during running.SOLUTION: A tire manufacturing method includes a process in which top rubber 4 which is to be a grounding part with a road is vulcanization-molded, a process in which a base tire 2 comprising base rubber 18 that top rubber 4 is adhered to in the outer peripheral is vulcanization-molded, and a process in which the top rubber 4 and the base tire 2 are integrated to mold a tire 1. The loss tangent tanδof the base rubber 18 is set as smaller than the loss tangent tanδof the top rubber 4, the 100% Modulus of the base rubber 18 is set as within the range of 60% to 85% of the 100% Modulus of the top rubber 4, and the thickness H2 of the base rubber 18 is set as within the range of 10% to 30% of the total thickness H1 of the tread part in the tire 1.</p> |
