6.6 6 An Excellent Fatigue Resistance Tire Cord using Nylon 66 or Nylon 6 and Aramid and Radial Tires Produced by the Same

摘要

The present invention relates to a method for producing a hybrid dipped cord using nylon 6.6 yarn and aramid yarn, comprising the steps of adjusting a tension applied to a raw cord, adjusting a heat treatment temperature, and adjusting a heat treatment time, The present invention relates to a method of producing a dipped cord in which nylon 6.6 yarn and aramid yarn are preliminarily formed, and a raw cord made of the same is heat treated while being dipped in an adhesive to further shrink the nylon 6.6 yarn. Another object of the present invention is to provide a method of manufacturing a cigarette pneumatic radial tire having a certain degree of fatigue resistance such that the raw cord using the nylon 6.6 yarn and the aramid yarn is dipped in a dipping solution and then heat- Or a hybrid dip code for a cap ply layer. In the present invention, when twisted yarns of aramid yarn and nylon yarn are kept at the same time, the nylon yarn is shrunk by subjecting the nylon yarn to heat treatment after the production of the cord, and the aramid yarn is longer than the nylon yarn per unit length So that fatigue can be increased. According to the present invention, it is possible to overcome the disadvantage of difficulty in deformation in the mold with high modulus when the aramid is used alone, and to improve the low fatigue resistance and adhesion which are problems in using aramid alone, 6.6 alone, it is possible to manufacture high performance tires by improving the low modulus and heat resistance which are problematic.