混合帘线及其制造方法

By pre-twisting nylon yarn and simultaneously initial twisting and re-twisting aramid yarn, and controlling the twist index ratio, a non-balanced hybrid cord is manufactured. This solves the problem of low strength utilization rate of hybrid cords in existing technologies, achieving high strength and excellent fatigue resistance, and improving the overall performance of the tire.

CN121002250BActive Publication Date: 2026-07-17GAO SHENG XIAOXING HIGH-TECH MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GAO SHENG XIAOXING HIGH-TECH MATERIALS
Filing Date
2025-01-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing hybrid cords suffer from an unbalanced structure due to differences in fineness at high speeds, resulting in low strength utilization and an inability to simultaneously achieve high strength and excellent fatigue resistance.

Method used

By pre-twisting nylon yarn and simultaneously performing initial and re-twisting with aramid yarn, controlling the ratio of the first twist index to the second twist index within the range of 0.94 to 1.24, a hybrid cord with an unbalanced structure is manufactured using a direct cabling machine.

Benefits of technology

It improves the strength utilization and fatigue resistance of the hybrid cords, enhances tire handling stability and ride comfort, and improves overall tire performance.

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Abstract

本发明公开了一种混合帘线及其制造方法，即，可以通过对低模量的第一纱线进行预加捻来消除因两根不同原纱的纤度差而产生的不均衡性，以减小低模量的第一纱线与高模量的第二纱线之间的捻度指数(twist index)差，以此确保功能的均衡性，使得功能更加均衡，通过强度高、橡胶粘合力强及耐疲劳特性优异等优点，实现轮胎的高性能化及轻量化。
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