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Anta’s new running shoe with a midsole made of Monprene TPE (Source: Teknor Apex)

28. Oktober 2020

Teknor Apex: TPE midsole adds more spring to each stride of Anta’s new running shoe

One of the world’s largest sportswear companies, Anta Sports Products Limited from China collaborated with Teknor Apex to develop a high-dampening material for the midsole of a new line of running shoes. The midsole is a thick layer between the insole and outsole that is typically composed of a soft cushioning material.

For its new running shoe, Anta collaborated with Teknor Apex to draw upon technology from outside the footwear industry to develop a midsole construction incorporating Monprene TPE. The companies carried out 40,000 running impact tests to identify the optimum solution that delivered the best rebound performance over extended periods of time. The key property for this performance is rebound resilience, a measure of the energy returned to the runner in comparison with the energy applied for deformation of the midsole upon the impact with each of the runner’s strides. While standard midsoles on the market achieve 50 % rebound, according to Anta, this new midsole achieves a rebound of 70 %. The reserved energy is transformed into running power, enabling the runner to go for longer distances.

“The collaboration between Anta and Teknor Apex challenges conventional thought about running shoes by focusing on the resilience of the midsole, not just its cushioning property,” said Serene Cheng Sook Ee, Business Director for Teknor Apex’s Thermoplastic Elastomer Division. “The customised Monprene solution adds more spring back into each stride of the running shoe, and it also provides added comfort in Anta leisure shoes.”

According to Teknor Apex, the customised Monprene is a 60 Shore A TPE that provides wrinkle-resistance, low compression set, tear resistance, and kink resistance. It is said to exhibit excellent elasticity and remains flexible at low temperatures.

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