Production method of expanded thermoplastic polyurethane sole

A production method and technology of popcorn, applied in household components, applications, household appliances, etc., can solve the problems of material hardening, uncomfortable wearing, poor elasticity, etc., and achieve excellent resilience, excellent wear resistance, and high elasticity. Effect

Inactive Publication Date: 2017-01-04
吴声鸿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sole of the shoe includes the outsole, the midsole and the insole. The comfort of the shoe is directly related to the softness and resilience of the sole. At present, most of the sole materials on the market are made of EVA, PU and other raw materials. After the traditional shoe material is used in an extremely low temperature or high temperature environment, the material becomes hard and has poor elasticity, resulting in uncomfortable wearing; there is an urgent need to develop a new shoe material substitute to make more comfortable soles to cater for rapid development The modern shoe material market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The first step is to mix the materials evenly. Mix and foam the AB rubber material and popcorn material in the injection molding machine. The mass ratio of AB rubber material is 20%, and the mass ratio of popcorn material is 80%. The AB rubber material is a kind of PU The material acts as an adhesive; the mixing ratio of AB rubber material and popcorn material can also be adjusted according to the needs of different hardness of the sole, and the hardness brought by different mixing ratios is different.

[0018] The second step, injection, fills the mold with the mixed material in the injection molding machine. The mold can be a shoe outsole mold, a shoe midsole mold, or an insole mold; inject the mixed material into different molds, thereby To make outsoles, midsoles, or insoles, after the mixture is injected into the mold, it needs to be pulled out evenly, with a smooth surface, no leaks, and evenly filled.

[0019] The third step is to close the mold. After the mold i...

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PUM

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Abstract

The invention provides a production method of an expanded thermoplastic polyurethane sole. The production method comprises the following steps of: step 1, uniformly mixing materials: mixing AB rubber and an expanded thermoplastic polyurethane material in an injection molding machine and foaming; step 2, injecting the materials: filling and injecting a mixture in the injection molding machine into a mold; step 3, closing the mold; step 4, heating; step 5, putting the heated mold into a cold box at 0-10 DEG C and rapidly cooling; step 6, opening the mold, wherein the duration from material injection to mold opening is about 8 minutes; step 7, obtaining a finished product; step 8, spraying the mold: uniformly spraying a de-molding agent into the mold; and step 9, wiping the mold: wiping the mold to be clean by utilizing clean cotton cloth. The production process has the advantages of one-step molding and simplicity in production; and the produced expanded thermoplastic polyurethane sole has excellent resilience, high elasticity, excellent wearing resistance, good oil resistance, supernormal tensile strength and high heat-insulation and cold-proof performances, and is light to wear.

Description

technical field [0001] The invention belongs to the technical field of making soles made of new materials, and in particular relates to a method for making popcorn soles. Background technique [0002] The sole of the shoe includes the outsole, the midsole and the insole. The comfort of the shoe is directly related to the softness and resilience of the sole. At present, most of the sole materials on the market are made of EVA, PU and other raw materials. After the traditional shoe material is used in an extremely low temperature or high temperature environment, the material becomes hard and has poor elasticity, resulting in uncomfortable wearing; there is an urgent need to develop a new shoe material substitute to make more comfortable soles to cater for rapid development The modern shoe material market. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method for making popcorn soles wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/04B29C44/42B29L31/50B29K75/00
CPCB29C44/04B29C44/42B29K2075/00B29L2031/504B29L2031/507
Inventor 吴声鸿
Owner 吴声鸿
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