Novel integrated sole and processing technology thereof

Abstract

The invention aims to provide a novel integrated sole with the advantages of comfort, abrasion resistance, firmness, durability and long service life. The sole comprises an ethylene-vinyl acetate copolymer (EVA) layer and a rubber layer which are closely connected by hot pressing. A processing technology comprises the following steps of: a, putting a rubber formula into a large roller machine for mixing rubber, heating a die, putting the rubber into the die at the constant temperature of between 150 and 160 DEG C, covering an upper cover of the die, and pushing the die into a cabinet, wherein the hot-pressing forming time is 300 seconds; b, pouring EVA rubber particles, a color master batch and an elastic agent into the constant temperature die of 160 to 180 DEG C, and performing small die foaming for 500 seconds; and c, performing integrated hot pressing treatment: roughening a rubber outsole, brushing with glue for the first time in an oven, and brushing with glue for the second time in the oven; roughing the contact face between the small die foamed EVA semi-finished product and the rubber outsole; and heating the die, filling the treated rubber outsole into the die at the constant temperature of 175 DEG C, then filling the treated EVA semi-finished product into the die, naturally cooling the hot-pressed outsole, finishing and trimming.

Description

technical field [0001] The invention relates to a shoe, in particular to a novel one-piece sole and its processing technology. Background technique [0002] Shoes, including soles, uppers and uppers; the materials used are mainly leather, synthetic leather, textiles, rubber, foam and plastics. At present, the main processing flow is as follows: 1. The sole is divided into upper and lower layers. The upper layer is the part in contact with the foot, which is made of softer materials such as foam to increase its comfort; the lower layer is the part in contact with the ground, which is slightly harder. Materials such as rubber to increase strength and abrasion resistance; usually adhesives are used to bond the two layers. 2. Set the upper and the vamp near the edge of the upper layer. [0003] The above-mentioned method has an obvious defect: the two layers of the sole are bonded by different materials, so they are easy to open, fall off, and separate during use, which affect...

AI Technical Summary

Problems solved by technology

[0003] The above method has an obvious defect: because the two layers of the sole are bonded by different materials, they are easy to open, fall off, and separate during use, which affects the comfort and life of the shoes.

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