Novel sole production method

Abstract

The invention relates to a novel sole production method, which mainly comprises the following steps of: respectively preparing a rear part hard material and a front part soft material, wherein the rear part hard material consists of mixed isocyanate, mixed polyalcohol and additives, and the additives comprise an amine catalyst, a metal amine catalyst, glycol, talcpowder, a foaming agent and color cream; regulating reaction time of the hard material to be about 15 seconds, and curing within 3-5 minutes; and lifting the front tip of a die body 45 degrees relative to the ground, injecting the hard material for about 10-12 seconds, injecting the soft material, performing die assembly for 6 to 7 minutes, and demoulding. The novel sole production method has the advantages that: two types of soles with different hardness are manufactured in a once molding mode, the problem of electricity, labor and time cost due to post forming required by common dual density is solved, the problem that several dual density production processes cannot be used structurally is solved, and the mold cost is greatly saved.

Description

technical field [0001] The invention relates to a material injection process for shoe soles, in particular to a production method for a novel shoe sole. Background technique [0002] When producing polyurethane women's high-heeled outsoles by traditional methods, it is usually necessary to ensure the stiffness of the high-heel so as not to twist the foot when wearing it. Therefore, since the hardness of the entire sole is very hard, the hardness of the forefoot at this time will make it impossible to bend, making it extremely strenuous for people to walk, and the feet are prone to fatigue. In addition, in some advanced production processes, a soft inner pad or other similar material will be placed on the hard bottom platform or midsole of the forefoot, but it cannot change the current situation of bending the soles of the feet when walking, and it will still be very tiring; , and some processes are a combination of two products through heel hardening and forefoot softening,...

AI Technical Summary

Problems solved by technology

Therefore, since the hardness of the entire sole is very hard, the hardness of the forefoot will make it impossible to bend at this time, making it extremely difficult for people to walk, and the feet are easily fatigued.

In addition, in some advanced production processes, a soft inner pad or other similar material will be placed on the hard bottom platform or midsole of the forefoot, but it cannot change the current situation of bending the soles of the feet when walking, and it will still be very tiring; , and some processes are a combination of two products through heel hardening and forefoot softening, but the process is complicated and the cost is high

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