本发明涉及一种子午线轮胎,其具有用聚对苯二甲酸乙二醇酯浸渍帘线制造的冠带层。所述子午线轮胎包括:一对平行的胎圈芯;卷绕在胎圈芯周围的至少一个径向胎体帘布层;在胎体帘布层的外周上层压的一个或多个倾斜带束层;以及在轮胎周向上层压在倾斜带束层的外周上层压的一个或多个冠带层,其中,冠带层包括使用包含90摩尔%以上的聚对苯二甲酸乙二醇酯的纱线制造的浸渍帘线,并且浸渍帘线的收缩率为3.0%至4.0%,拉伸5%时的强度为2.5g/d至3.0g/d,断裂强度为6.5g/d至7.5g/d,尺寸稳定性指数为5.8至6.5。
Disclosed is a radial tire having a cap ply manufactured with a polyethylene terephthalate dip cord. The radial tire includes: a pair of parallel bead cores; at least one radial carcass ply wound around the bead cores; one or more inclined belt layers layered on the outer circumference of the carcass ply; and one or more cap ply layers layered in the circumferential direction of a tire on the outer circumference of the inclined belt layers, wherein the cap ply includes a dip cord manufactured using a yarn comprising 90 mol % or more of polyethylene terephthalate, and the dip cord has a shrinkage of 3.0-4.0%, a strength of 2.5-3.0 g/d at an elongation of 5%, a breaking strength of 6.5-7.5 g/d, and a dimensional stability index of 5.8-6.5.
聚酯轮胎帘线和使用该聚酯轮胎帘线的子午线轮胎
2022-06-10
Patent
Elektronische Ressource
Chinesisch