Composite functional shoe pad and preparation technique thereof

Abstract

The invention relates to a composite functional shoe pad. The shoe pad is divided into an area A and an area B, wherein the area A is divided into a sole area A1 and a heel area A2, the area A is made of a closed cell polyurethane foam material, the other part is the area B, and the area B is made of a fine cell polyurethane foam material. The composite functional shoe pad is prepared by using a mold I and a mold II through a two-time injection technique. The composite functional shoe pad provided by the invention selects different foam materials for providing functional protection according to different physiological parts of a foot, can satisfy walking and moving demands of people, and can better play roles of perspiration, weight bearing and stress reduction. The process is simple, the fine cell polyurethane foam material and the closed cell polyurethane foam material are bonded more uniformly and firmly than materials directly glued, and the composite functional shoe pad is suitable for large-scale production and application.

Description

technical field [0001] The invention relates to the field of insoles, in particular to a composite functional insole and its preparation technology. Background technique [0002] Polyurethane foam material, as a general insole material, can generally be divided into two types: microcellular foam and closed-cell foam. Microcellular foam has the characteristics of good air permeability, but poor resilience, while closed-cell foam It has good resilience, but poor air permeability. Usually, when people are walking, exercising, and strenuous activities, due to the different functions of each part of the foot, the various functions and requirements of each part of the foot are not the same. Now There is little insole involved. Contents of the invention [0003] The object of the present invention is to provide a composite functional insole and its preparation technology to solve the deficiencies of the prior art. [0004] The purpose of the present invention is achieved throug...

AI Technical Summary

Problems solved by technology

[0002] Polyurethane foam material, as a general insole material, can generally be divided into two types: microcellular foam and closed-cell foam. Microcellular foam has the characteristics of good air permeability, but poor resilience, while closed-cell foam It has good resilience, but poor air permeability. Usually, when people are walking, exercising, and strenuous activities, due to the different functions of each part of the foot, the various functions and requirements of each part of the foot are not the same. Now There is little insole involved

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