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Method for one-time application of polyurethane sole wrapped by thermoplastic polyurethane film to undersole

A technology of thermoplastic polyurethane and its production method, which is applied in the field of shoemaking, can solve problems such as sole turning outward, deformation, shrinkage, etc., achieve the effect of reducing production cost, reducing mold cost, and meeting diversified quality requirements

Inactive Publication Date: 2015-02-04
刘银实
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yield rate, molding rate, and three-dimensional effect have been improved, and various problems encountered in the production process such as sole turning outward, shrinkage, and deformation have been solved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The manufacturing method of the polyurethane sole covered with the thermoplastic polyurethane film includes fixing the thermoplastic polyurethane film on the middle mold base of the polyurethane foam midsole mould, heating the thermoplastic polyurethane film, and injecting the polyurethane foam material after absorbing and shaping.

[0012] The heating parameters of thermoplastic polyurethane films with different thicknesses are as follows:

[0013]

[0014] 4

[0015] The polyurethane shoe sole with thermoplastic polyurethane film outsourcing produced by the method of the present invention is relatively light, comfortable, attractive in appearance, good in three-dimensional effect, does not pollute the environment and has excellent elasticity, improves the yield rate, forming rate, and good three-dimensional effect, and solves the problem that the sole is outward Various problems encountered in the production process such as overturning, shrinkage,...

Embodiment 2

[0017] A method for one-time bonding of a polyurethane shoe sole covered with a thermoplastic polyurethane film and an outsole, the method also includes firstly coating the upper surface of the outsole with glue, putting it into a polyurethane foam midsole mold, and heating it at 70±3°C , bake for 5-6 minutes, and then heat the thermoplastic polyurethane film on the middle frame, and inject polyurethane foam material after blistering and setting.

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PUM

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Abstract

The invention belongs to the technical field of shoemaking, and especially relates to a method for one-time application of a polyurethane sole wrapped by a thermoplastic polyurethane film to an undersole. A technical scheme adopted in the invention is characterized in that the method for one-time application of the polyurethane sole wrapped by the thermoplastic polyurethane film to the undersole comprises the following steps: fixing the thermoplastic polyurethane film to an intermediate die holder of a polyurethane foaming middle bottom die, carrying out plastic uptake fixing, and injecting a polyurethane foaming material, wherein the thermoplastic polyurethane film is heated before the plastic uptake. The polyurethane sole made through the method has the advantages of light weight, comfortableness, beauty, good stereo perception, no pollution to environment, extremely good elasticity and health benefiting.

Description

technical field [0001] The invention belongs to the technical field of shoemaking, and in particular relates to a manufacturing method for one-time lamination of a polyurethane shoe sole and an outsole wrapped with a thermoplastic polyurethane film. Background technique [0002] The sole of the prior art includes a large bottom and a polyurethane midsole. At present, the existing polyurethane midsole is roughly divided into two types: the first type is a simple polyurethane foam sole, which has more pores in the appearance and layered color difference. It is easy to pollute, and the spray paint during coloring will also cause environmental pollution; the second category is the polyurethane foam sole with thermoplastic polyurethane film on the outside of the sole. Finally, the one-piece molded with polyurethane foaming material has a high defect rate, that is to say, the elastic characteristics of thermoplastic polyurethane cause blurred corner molding and poor three-dimensio...

Claims

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Application Information

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IPC IPC(8): B29C44/12B29C44/34B29B11/06B29C51/02
Inventor 刘银实
Owner 刘银实
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