The Right Time To Use Supercritical Foam As A Shoe Material, Such As Adidas|nike|lining|anta|xtep|peak|jordan.

The supercritical foaming process has the advantages of being clean, green, excellent foaming performance, etc. In the past two years, the application of shoe materials is becoming more and more mature, and continue to expand the application of components and materials, of which the shoe midsole is the most common application, and began to expand to the insole, the type of foam material covers EVA, TPU, TPEE, nylon elastomer, etc.

1. Supercritical Foam Is Increasingly Used In Midsole Applications

Supercritical foam shoe material most easily associated with people should be "popcorn" ETPU shoe midsole, it is more common process is TPU through the autoclave-type supercritical foam equipment to get foam particles, and then through water vapor, microwave radiation, PU bonding, and other molding processes, and finally get supercritical ETPU shoe midsole.

The foaming process of the nylon elastomer and TPEE midsole is similar to ETPU. But in addition to supercritical autoclave-type foaming, TPU, nylon elastomer, and TPEE can also get the sheet through a supercritical extrusion foaming process and then cut to get the shoe midsole.

The most common EVA shoe midsole, with technological breakthroughs, also began to use the supercritical foam process, according to preliminary understanding, the common process route is: EVA blended, cross-linked, pressed into the shoe blank, and then through supercritical molding foam to get the shoe midsole.

2. Sports Brands Have Stepped Up

Based on the advantages of supercritical foam shoe midsoles such as green, excellent resilience, and no chemical foam residue, sports brands such as Adidas, Nike, Sketchers, Puma, Anta, Li Ning, Xtep, Peak, Jordan, and 361 degrees have increased the number of shoes with supercritical foam midsoles.

As you can see from the above, there have been many applications of supercritical foam shoe midsoles. In terms of insoles, the C37 2.0 soft running shoe released by Anta uses supercritical foam insoles.

Although the supercritical foam insole has appeared before, at that time it was an ETPU particle molding insole, which did not take advantage of the cost, performance, technology, molding molds, and other aspects. And Anta will be supercritical foam insoles used in C37 2.0 running shoes, indicating that the process has matured to a relatively low cost, the official did not say which material, there may be a guess is estimated to be supercritical foam EVA sheet.

Whether it is the midsole or the insole, the application of the supercritical foaming process in the shoe material is a manifestation of the sustainable, green industry development trend.

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