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Multi-density durable elastic damping foaming insole and formula

A multi-density and durable technology, applied in the field of foam midsole, can solve the problems of high compression deformation rate, poor tear performance, and unsatisfactory performance, and achieve good compression resistance and bump resistance, good wear resistance, and slow down The effect of fatigue

Active Publication Date: 2018-05-08
THE QUARTERMASTER EQUIP INST OF THE LOGISTICAL SUPPORT DEPT CMC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high compression deformation rate and poor tear performance after EVA foaming, it cannot meet the durability needs of troops under high-intensity and complex training conditions; in addition, the good elasticity of the forefoot can relieve training fatigue, and the heel of the sole can absorb shock Energy absorption can alleviate the damage of training to the knee
However, shock absorption and elasticity are contradictory, and it is impossible to have both on the single-density foam EVA midsole.

Method used

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  • Multi-density durable elastic damping foaming insole and formula
  • Multi-density durable elastic damping foaming insole and formula
  • Multi-density durable elastic damping foaming insole and formula

Examples

Experimental program
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Effect test

Embodiment

[0053] The preparation of embodiment, multi-density durable elastic shock-absorbing foam midsole

[0054] The rubber-plastic foam skeleton is made of the following components: EVA 7470 25kg; POE 8150 50kg; natural rubber 10kg; talcum powder 10kg; foaming agent AC 3kg; zinc oxide 1.6kg; bridging agent DCP 0.5kg; stearic acid 1.2kg; titanium dioxide 2.0kg; the density of the obtained rubber-plastic foam skeleton is (0.25±0.03)g / cm 3 .

[0055] The high elastic forefoot is made of the following components: EVA 7470 25kg; POE 8060 15kg; POE 7467 20kg; talcum powder 5kg; foaming agent AC 1.9kg; bridging agent DCP 0.25kg; zinc oxide 0.8kg; stearic acid 0.3kg, the density of the obtained high elastic forefoot is (0.18±0.02)g / cm 3 .

[0056] The energy-absorbing and shock-absorbing heel is made of the following components: EVA 609 45kg; talcum powder 5kg; plasticizer DOP 3kg; foaming agent AC 1.5kg; bridging agent DCP 0.25kg; kg, the density of the resulting energy-absorbing shock...

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Abstract

The invention provides a multi-density durable elastic damping foaming insole. The multi-density durable elastic damping foaming insole is formed by combining a rubber-plastic foaming skeleton, a high-elasticity front insole and energy-absorbing damping heelpiece through brush coating and mold pressing. Compared with other foaming insoles, the multi-density durable elastic damping foaming insole is high in compression resistance and bump resistance on the whole, is higher in durability under the same weight condition and is particularly suitable for physical training running shoes with high training intensity. The whole insole is prominent in supporting performance, the front insole is elastic and protrusive, the heelpiece has buffering and damping functions, the multi-density durable elastic damping foaming insole is capable of relieving fatigue feeling under the high-intensity training conditions and avoiding training injures, simple in structure process, high in operability and suitable for large-batch production.

Description

technical field [0001] The invention relates to a foam midsole, in particular to a multi-density durable elastic shock-absorbing foam midsole and its formula. Background technique [0002] At present, the midsole of many sports shoes on the market is made of foamed EVA. Because of its simple process, low price, and light weight, it is deeply loved by sports shoe manufacturers and consumers, and has a large market share. However, due to its high compression deformation rate and poor tear performance after EVA foaming, it cannot meet the durability needs of troops under high-intensity and complex training conditions; in addition, the good elasticity of the forefoot can relieve training fatigue, and the heel of the sole can absorb shock Energy absorption can alleviate the damage to the knee caused by training. However, shock absorption and elasticity are contradictory, and it is impossible to have both on the single-density foam EVA midsole. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): A43B13/04A43B13/16A43B13/18B29D35/12C08L23/08C08L7/00C08K13/02C08K3/34C08K3/22C08K5/09C08J9/10
CPCA43B13/04A43B13/16A43B13/187B29D35/122C08J9/103C08J2203/04C08J2323/08C08J2407/00C08J2423/08C08K3/34C08K5/09C08K5/12C08K5/14C08K13/02C08K2003/2241C08K2003/2296
Inventor 王修行秦蕾梁高勇李玉才吴毅辉龙知洲管宇
Owner THE QUARTERMASTER EQUIP INST OF THE LOGISTICAL SUPPORT DEPT CMC
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