A 3D printing process for high-performance soles and insoles

Abstract

The invention discloses a 3D printing process for high-performance soles and insoles. It uses graphene-modified TPU powder as a base material, and prints graphene-modified TPU soles or graphene-modified TPU insole. Since the present invention uses graphene-modified TPU powder as the base material, the graphene-modified TPU powder has the characteristics of TPU and graphene at the same time, and can simultaneously achieve the effects of wear resistance and anti-slip, deodorization and sterilization, and electrical and heat conduction. TPU has good electrical conductivity, which can realize the development, design and production of smart shoe soles and insoles; because graphene modified TPU has good conductivity, it can realize the development, design and production of smart shoe soles and insoles; 3DP technology does not need or only needs The 3D printing of soles and insoles can be realized at a lower temperature. The printing efficiency of this 3DP process can reach 3-4 times that of the SLS process, and the heating energy consumption is reduced to 1 / 3-1 / 2 of the SLS process. There is no loss of materials and the use of The rate is 100%, and the cost is reduced.

Description

Technical field: [0001] The invention relates to the technical field of sole and insole production, in particular to a 3D printing process for high-performance sole and insole. Background technique: [0002] The manufacturing materials of traditional insoles include TPU, EVA, rubber, silica gel, etc. The manufacturing process adopts metal mold injection molding, which has a long cycle, high development costs and small sample mass production costs, and cannot be personalized and intelligent. [0003] 3D printing technology has been deeply involved in shoe manufacturing, and the application of 3D printing technology partially solves the above problems, and can also remove mold costs and save valuable time. In the manufacture of outsoles, midsoles and insoles, it is more competitive than traditionally manufactured footwear due to the ability to provide higher performance, more complex textures, unique custom designs, etc. The SLS process is a selective laser sintering technolo...

AI Technical Summary

Problems solved by technology

The SLS process is a selective laser sintering technology. Practical materials include PA12, TPU, etc. It has practical applications in the development and production of shoe soles and insoles. However, due to the high melting point of the material, a high sintering temperature and powder bed working temperature are required. Printing The speed is slow, and the material utilization rate is low, about 50%-70%, which further leads to high cost, which is not conducive to the realization of cost-effective soles and insoles