About the Use of Double Sole in Safety Shoes

In the current combination of soles for labor insurance shoes, the double sole has become the most convenient and best solution. Through the wear-resistant and anti-slip properties of the outsole, the foot soles are protected, and the midsole's light and soft characteristics are achieved. Comfort when walking.

From this point of view, the current best combination is RU/PU, which uses rubber (RU) to make the outsole, polyurethane (PU) to make the midsole, and then passes the adhesive or chemical bonding function and the PU itself. The adhesive function bonds the outsole to the midsole. Of course, the outsole can also be polished, polished, and carved.

There is also a combination of sole materials, namely PU/TPU (polyurethane/thermoplastic polyurethane and). Outer soles made of thermoplastic polyurethane are extremely tough and hardwearing, made of polyurethane in the midsole, comfortable to wear, and the use of thermoplastic polyurethane to outsole meet the needs of contemporary designers, because the soles made of TPU can produce color. The distinct soles of the shoe and the carving process on the sole can also be varied.

Another double-sole made of PU/PU (polyurethane/polyurethane) material is made of polyurethane. Outsole and midsole soles are made of polyurethane. For the outer end, special dense polyurethane materials must be used to maintain the wear resistance and method properties of the outer sole; for the midsole, for the sake of comfort, foamed polyurethane must be used. Such as Shanghai Chi Ning Industrial Development Co., Ltd. using the German Bayer secondary foam production process safety shoes (labor safety shoes) double soles, wearing a light comfortable, wear-resistant anti-skid.

China Labor Insurance Network