Thermoplastic polymer foaming sole and method for manufacturing thermoplastic polymer foaming sole

The present disclosure discloses a method for manufacturing a thermoplastic polymer foaming sole, which includes a step (a), forming a mode, and a step (b), forming a thermoplastic polymer foaming sole by using a supercritical fluid to foam the mode. The mode includes TPU or TPEE but crossliners and foaming agents are excluded from the mode. The density of the thermoplastic polymer foaming sole is larger than or equal to 0.3 g/cm3 and smaller than or equal to 0.8 g/cm3. Therefore, using the supercritical fluid to physically foam the mode which is made of TPE or TPEE can get the thermoplastic polymer foaming sole directly. And the size and shape of the thermoplastic polymer foaming sole fit the designing requirement. Thus, no more subsequent process is needed, and the goals of simplifying the processes, reducing the cycle time and reducing the cost are achieved.