Outsole, method for attaching outsole to mid-sole and made shoe sole

Abstract

The invention provides an outsole. The outsole sequentially comprises an outsole substrate, a rubber stock solution film layer attached on the outsole substrate and a release film layer attached on the rubber stock solution film layer. The outsole surface is smooth and clean, and the cumbersome surface treatment processes such as polishing and treating agent adding are omitted. The invention further discloses a method for attaching the outsole to a mid-sole. In the attaching process, a hardening glue type thin film is added, cohesiveness is good, when the outsole is attached to the mid-sole, cohesiveness-increasing post treatment processes such as gluing, glue spraying and pressing are not needed, mold and time cost is reduced, and the production efficiency is greatly improved. Meanwhile, the invention discloses a shoe sole made through the method for attaching the outsole to the mid-sole. The outsole and the mid-sole of the shoe sole are closely attached, and the shoe sole is attractive and durable.

Description

technical field [0001] The invention belongs to the field of shoe sole molding, and in particular relates to a large bottom, a method for laminating the large bottom and a midsole, and the obtained shoe sole. Background technique [0002] Generally, the sole can be divided into two types: one is the outsole that is in direct contact with the ground and has a non-slip effect; the other is the midsole that can disperse the impact of weight and relieve the impact of the knee. In order to fit the outsole and the midsole, it needs to be treated with various treatment agents, and after the glue brushing (glue coating, glue spraying) process, it is bonded by heating. At this time, a lot of harmful substances will flow and pollute the environment. If it is very large, it will also lead to the degradation of the physical properties of the sole, such as thermal yellowing, easy hydrolysis, and degumming of the bonding part. [0003] The existing bonding method of outsole and midsole i...

AI Technical Summary

Problems solved by technology

In order to fit the outsole and the midsole, it needs to be treated with various treatment agents, and after the glue brushing (glue coating, glue spraying) process, it is bonded by heating. At this time, a lot of harmful substances will flow and pollute the environment. If it is very large, it will also lead to the degradation of the physical properties of the sole, such as thermal yellowing, easy hydrolysis, degumming of the bonding part, etc.

[0003] The existing bonding method of outsole and midsole is: in the midsole mold, the mode of injecting PU material after vacuum forming of TPU film is used for lamination. There are following disadvantages in this method: (1) the complexity of making PU mold during production The production cost of the mold (vacuum mold) is high; (2) The lamination tension between the film and the outsole is not enough; (3) The physical properties caused by the heating of the film are low, such as poor film tension, discoloration and yellowing, etc.; (4) Process Complicated, including film placement, film surface cleaning management, film heating and other processes, after the product is formed, it must be dried and pressed again; (5) Manpower waste

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