Composite sole

Abstract

The invention discloses a composite sole, which comprises an upper soft layer and a lower hard layer, wherein the soft layer is a foamed polypropylene plastic layer; the hard layer is a polyvinyl chloride plastic layer; patterns are engraved at one side of the polyvinyl chloride plastic layer contacting the bottom surface; and the foamed polypropylene plastic layer and the polyvinyl chloride plastic layer are cohered together in a molten state to form an integral structure. The soft layer is adopted as one side contacting a human body and is worn comfortably, and the hard layer is used as a wearable layer, so that the composite sole has small friction loss with the ground and long service life; and a miniature one-way ventilating hole is also arranged on the sole, thus ventilating the sole and increasing the comfort of people. In addition, the materials for the composite sole are fewer; the cost is low; and the composite sole is easy to be accepted by people.

Description

technical field [0001] The invention relates to a composite material, in particular to a composite shoe sole. Background technique [0002] Existing composite material soles usually use special materials to increase their softness and resistance to bending. This kind of sole is difficult to popularize due to expensive raw materials; there is also a composite material sole that adds a layer to the bottom or inner side of the sole The cloth layer is used to increase its softness and resistance to bending, but because the cloth layer has poor wear resistance, it will affect the service life of the sole, and its use still has certain defects. [0003] The soles of traditional sandals and slippers are generally single-layer structures, usually made of plastic and other materials, which are light and soft, but one of the main disadvantages of plastic soles is poor air permeability, which is not suitable for people with sweaty feet and people who are allergic to plastic use. Ther...

AI Technical Summary

Problems solved by technology

[0004] With the rapid development of the footwear industry, a single sports sole can no longer meet the needs of people when exercising, so various composite soles have emerged. At present, the most commonly used rubber-plastic composite soles are made of ethylene vinyl acetate. The copolymer material (EVA for short) is used as the upper bottom, the rubber material is used as the lower bottom, and the upper and lower bottoms are bonded together.

However, rubber materials and EVA materials are easy to be punctured, and the cost is high, and the manufacturing process is complicated

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