The technology of "aramid fiber tire side", which was released in early 2016, will bring a new level of tire strength to a new technology. The most familiar hakkapeliita R2 unstudded and hakkapeliita 8 studded tyres are currently used in this technology.

Aramid material "is a new high-tech synthetic fiber with high strength, high modulus and high temperature, acid and alkali resistance." So it was widely used in the aerospace and military industries, and the main area of application was bulletproof clothing. Now, the innovative use of Finnish tyre is the first to strengthen the structure of the tire side.

China's tire industry is striving for the industrialization of green tyres, and in the process of tyre greenization, the skeleton material is supposed to carry heavy responsibilities. Improving the fuel economy of the tyre is mainly to reduce the rolling resistance of the tire, while the rolling resistance and the weight of the tire have a high correlation, which can reduce the fuel consumption of the tyre.

World famous cord company bekaert, according to data when tire cord strength of skeleton from the NT (ordinary strength) to HT (high strength), tires can reduce 2.5 kg, from HT to UT (ultra high strength), can reduce 1.5 kg. When the strength of the steel cord is increased from NT to HT and UT, the rolling resistance of tires decreases by 3%~ 7%. For the 10 million tire companies with an annual output of 10 million, a 7% reduction in rolling resistance means saving 1 billion yuan of fuel for the society and reducing the emission of 310,000 tons of CO2.

The application of aramid materials to green and green tires can reduce the average quality of the radial tyres of the high-performance sedan by 10% and the rolling resistance by 12%. The previous data showed that the rolling resistance of the tire could be reduced by 15% ~ 30%, and the higher the speed level, the higher the rolling resistance of the tire. According to dupont data, the use of Kevlar arron to make the radial tire of a sedan can reduce the rolling resistance of the tyres by 5% to 7%. For heavy-duty tires, the quality of the tire can be reduced by 3 ~ 5 kg, and the fuel economy is increased by 125%. According to the data, the steel wire cord with the Kevlar fiber curtain line 1500Dtex/2 instead of 2 x 0.30 HT, the tire quality can be reduced by 6.5% ~ 7.5%, and the rolling resistance is reduced by 8% ~ 15%. The quality of each tire can be reduced by 3 kg, while the cost can be increased by only 10%. Aramid has also become one of the fastest growing skeleton materials in recent years, growing at double-digit rates each year.

The steel wire curtain line of Kevlar fiber curtain line 1500Dtex/2 instead of 2 x 0.30HT is used in the belt of 195/60r14 86H and 225/40zr1888w type passenger car tire, the tire weight decreases by 6.4% ~ 7.5% and the rolling resistance decreases by 12.5%. The test tyre durability, high speed, drag resistance and intensity are far above the national standard, and the cost of each tyre material is increased by only 35 yuan. South China tire company in the 225/40 zr18 88 w specifications tyres with 1 1500 dtex/aramid cord instead of 1 2 layers of 1680 dtex / 2 nylon cord fabric in the fetus cord, test the durability of the tire, recommend suite, casting off far supranational standard resistance and strength.

Aramid fiber is one of the application of the fastest growing skeleton material, nearly 10 domestic enterprises in the industrialization of exploration, there are 2 companies has developed with the United States and Japan teijin dupont product performance quite samples, but the scale of production of domestic aramid are failed to transcend thousand tons.