Dipped hybrid cord with excellent fatigue resistance and radial tire using the same

摘要

The present invention relates to a tire cord and a pneumatic tire and is characterized in that when raw nylon 6,6 or nylon 6 yarn and an aramid yarn are each pre-twisted and then cabled to form a raw cord and the raw cord is then turned up, the specification for aramid yarn is 5 to 100 mm / m longer than the nylon 6,6 or nylon 6 yarn. The dipped hybrid cord of the present invention has excellent fatigue resistance of 80% or more, the initial deformation in the tensile test is generated by the low modulus of nylon, and a high modulus comes into play in the section where aramid begins to absorb the tensile force , Thus, the deformation during the process of inflating the green tire in the mold with the bladder is easy, which facilitates the manufacture of tires.