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Dual-density environment-friendly shoe sole and manufacturing method thereof

A manufacturing method and double-density technology, applied to shoe soles, footwear, clothing, etc., can solve the problems of low physical properties, collapse, reduced use strength and wear resistance of finished shoe soles

Pending Publication Date: 2021-12-03
YUNHAI (DONGGUAN) INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to ensure the performance of the finished shoe sole, the amount of waste mixed in the recycled materials is usually only about 5% to 10%. Once too much waste is mixed, the physical properties of the finished shoe sole will be low, reducing its use strength and durability. Abrasive, and prone to collapse, fracture, etc.

Method used

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  • Dual-density environment-friendly shoe sole and manufacturing method thereof
  • Dual-density environment-friendly shoe sole and manufacturing method thereof
  • Dual-density environment-friendly shoe sole and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to figure 1 , figure 2 and image 3 , a double-density environmental protection shoe sole in this embodiment, including a core 1 and a periphery 2 of recycled materials.

[0035] The main component of the recycled material core 1 is PU, which contains a plurality of waste particles 3. The waste particles 3 can be one or more of PU particles, TPU particles, EVA particles or rubber particles, and the diameter of the waste particles 3 is different. Greater than 3mm. And the recycled material inner core 1 is that the density can be 0.25g / cm 3 to 0.4g / cm 3 between. In this embodiment, the waste particles 3 are PU particles, and the density of the recycled material inner core 1 is preferably 0.25g / cm 3 .

[0036] The outer periphery 2 can be one of the outer periphery formed by thermoplastic elastic materials such as rubber outer periphery or PU outer periphery, TPU outer periphery, TPR outer periphery, and the density of outer periphery 2 can be 0.7g / cm 3 to 1...

Embodiment 2

[0039] refer to figure 1 , figure 2 and image 3 , a double-density environmental protection shoe sole in this embodiment, including a core 1 and a periphery 2 of recycled materials.

[0040] The main component of the recycled material inner core 1 is PU, which contains a plurality of waste particles 3. The waste particles 3 can be one or more of PU particles, TPU particles, EVA particles or rubber particles, and the diameter of the waste particles 3 is different. Greater than 3mm. And the recycled material inner core 1 is that the density can be 0.25g / cm 3 to 0.4g / cm 3 between. In the present embodiment, waste particle 3 is EVA particle, and the density of recycled material inner core 1 is preferably 0.4g / cm 3 .

[0041]The periphery 2 can be one of the periphery formed by thermoplastic elastic materials such as rubber periphery or PU periphery, TPU periphery, TPR periphery, and the density of the periphery 2 can be 0.7g / cm 3 to 1.2g / cm 3 Between, in this embodiment...

Embodiment 3

[0044] refer to figure 1 , figure 2 and image 3 , the manufacture method of a kind of double-density environment-friendly sole of the present embodiment, comprises the following steps:

[0045] a1. Take the peripheral material. The peripheral material can be selected from commercially available rubber or PU, TPU, TPR and other thermoplastic elastic materials. In this embodiment, the peripheral material is selected from TPR material. After the peripheral material is heated and melted, it is injected into the peripheral mold located in the injection molding machine In the process, the peripheral material is formed in the peripheral mold and then taken out from the peripheral mold to obtain the periphery, and the formed periphery is provided with a cavity;

[0046] b1. Collection of waste materials. Waste materials can be trimmed raw materials during the shoe manufacturing process, materials on scrap products, etc., and these materials can be one or more of PU, TPU, EVA or ru...

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Abstract

The invention discloses a dual-density environment-friendly shoe sole and a manufacturing method thereof. The dual-density environment-friendly shoe sole comprises a recycled material inner core and a periphery, the periphery wraps the bottom and the side portion of the recycled material inner core, and the density of the periphery is larger than that of the recycled material inner core. According to the dual-density environment-friendly shoe sole, the periphery and the recycled material inner core which are different in density are arranged, the periphery can serve as the contact part of the shoe sole and the outside such as the ground, the use strength and abrasion resistance of the shoe sole are guaranteed, and the situations of collapse, breakage and the like of the shoe sole are also reduced, and meanwhile due to the fact that the recycled material inner core does not need to make contact with the outside such as the ground, the required strength is low, that is, more waste materials can be contained so that the environmental protection property of the invention is ensured. In addition, the top of the recycled material inner core does not need to be wrapped by the periphery, the recycled material inner core can be directly connected with the vamp, and therefore the softness of the finished shoe can be guaranteed.

Description

technical field [0001] The invention relates to the field of shoe sole design, in particular to a double-density environment-friendly shoe sole and a preparation method thereof. Background technique [0002] In production and manufacturing, a lot of waste materials are often generated, such as trimmed raw materials, scrap materials, etc. If these waste materials are directly discarded, it will not only cause a waste of energy and resources, but also pollute the environment. As for the reuse of waste, reducing the discharge of waste, reducing the impact on the environment, and achieving sustainable development, now some materials with certain regeneration value in waste, such as rubber, EVA, PU or TPU, can be processed Recycled and used to make shoe soles. [0003] If waste materials are completely used to make shoe soles, due to the poor performance of waste materials, the production of such shoe soles is difficult and costly, and the performance of the finished product sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43B13/04A43B13/12B29C44/06
CPCA43B13/04A43B13/12B29C44/06
Inventor 王天强王明豪王明乐
Owner YUNHAI (DONGGUAN) INTELLIGENT TECH CO LTD