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Secondary forming process for preparing material with high elastic resilience by utilizing thermoplastic polyurethane elastomer (E-TPU) particles

A secondary molding and resilience technology, applied in applications, home appliances, other home appliances, etc., can solve the problems of increasing process and cost, limiting design scope, simple color, etc., saving process and cost, extending design scope, The effect of labor cost improvement

Inactive Publication Date: 2018-08-10
林骏峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, this reason also greatly limits the scope of design, and cannot make small patterns and shapes, which greatly limits the design space of products.
[0005] The second is that there are many raised marks of air holes on the appearance of the sole, which affects the appearance of the product
Will increase the manufacturing process and labor costs
And only a single finished product can be made, and other accessories and decorative parts can only be attached later, which increases the process and cost
[0007] Fourth, the current product can only be made in a single color, that is, white, which limits the color matching of finished shoes, that is, the color is simple and monotonous
In order to make the finished shoes rich and colorful, manual follow-up processing is necessary, such as applying glue and then attaching them to other accessories, which will cause additional processes and costs

Method used

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  • Secondary forming process for preparing material with high elastic resilience by utilizing thermoplastic polyurethane elastomer (E-TPU) particles
  • Secondary forming process for preparing material with high elastic resilience by utilizing thermoplastic polyurethane elastomer (E-TPU) particles
  • Secondary forming process for preparing material with high elastic resilience by utilizing thermoplastic polyurethane elastomer (E-TPU) particles

Examples

Experimental program
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Effect test

Embodiment 1

[0038] refer to Figure 3-5 , this embodiment provides a secondary molding process for preparing high resilience materials using E-TPU particles, including the following steps:

[0039] Step 1: Through the steam molding process, use E-TPU particles to make E-TPU rough blank 3. Where detailed patterns need to be made, the design details can be ignored so that the particles can be filled; if necessary, add decorations or details later The place where the pattern is reserved, that is, the position of accessories is reserved on the E-TPU rough blank 3; specifically, the accessories include wear-resistant rubber outsole 4, decorative parts or a combination of the above two.

[0040] Ignoring the original design details means that, for example, the width and depth of the design pattern of some soles are 1mm and 2mm respectively, but the existing E-TPU molding process cannot make such a small pattern, so , what the present invention emphasizes is to ignore such design details at thi...

Embodiment 2

[0047] refer to Figure 3-5 , this embodiment provides a secondary molding process for preparing high resilience materials using E-TPU particles, including the following steps:

[0048] Step 1: Through the steam molding process, use E-TPU particles to make E-TPU rough blank 3. Where detailed patterns need to be made, the design details can be ignored so that the particles can be filled; if necessary, add decorations or details later The reserved position of the pattern, that is, the reserved position of accessories on the E-TPU rough blank 3; specifically, the accessories include wear-resistant rubber outsole 4, decorative parts or a combination of the above two.

[0049] Ignoring the original design details means that, for example, the width and depth of the design pattern of some soles are 1mm and 2mm respectively, but the existing E-TPU molding process cannot make such a small pattern, so , what the present invention emphasizes is to ignore such design details at this stage,...

Embodiment 3

[0056] refer to Figure 3-5 , this embodiment provides a secondary molding process for preparing high resilience materials using E-TPU particles, including the following steps:

[0057] Step 1: Through the steam molding process, use E-TPU particles to make E-TPU rough blank 3. Where detailed patterns need to be made, the design details can be ignored so that the particles can be filled; if necessary, add decorations or details later The reserved position of the pattern, that is, the reserved position of accessories on the E-TPU rough blank 3; specifically, the accessories include wear-resistant rubber outsole 4, decorative parts or a combination of the above two.

[0058] Ignoring the original design details means that, for example, the width and depth of the design pattern of some soles are 1mm and 2mm respectively, but the existing E-TPU molding process cannot make such a small pattern, so , what the present invention emphasizes is to ignore such design details at this stag...

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Abstract

The invention belongs to the technical field of polyurethane elastomer application, and discloses a secondary forming process for preparing a material with the high elastic resilience by utilizing thermoplastic polyurethane elastomer (E-TPU) particles. The secondary forming process for preparing the material with the high elastic resilience by utilizing the E-TPU particles comprises the steps of firstly, through a steam compression moulding forming process, utilizing the E-TPU particles for preparing an E-TPU rough blank, and reserving accessory positions on the E-TPU rough blank; correspondingly placing the pretreated coated E-TPU rough blank and accessories into a mold, carrying out a steam or electric heat compression moulding forming process, and then cooling and forming to obtain a finished product; and trimming, sorting and packaging the finished product. According to the process flow provided by the invention, the appearance and the follow-up labor cost are greatly improved; andthe limitation on a product diversity design space is greatly improved (including pattern complexity, multiple accessory combination, and the like).

Description

technical field [0001] The invention belongs to the technical field of application of polyurethane elastomers, and in particular relates to a secondary molding process for preparing high-resilience materials by using E-TPU particles. Background technique [0002] E-TPU (foamed thermoplastic polyurethane elastomer) is one of the shoe-making raw materials that have become popular in recent years. E-TPU is a kind of polymer foam material. The product is oval or approximately round, with a diameter of 5-7 mm. Wait. The shoe industry is commonly known as E-TPU popcorn. This product was exclusively created by BASF in Germany, and has been successfully developed and mass-produced by many factories in China in recent years. After pumping E-TPU particles into the mold through the EPP molding machine, and then pumping in steam for heating and pressurization, products of different shapes can be prepared. [0003] Due to the advantages of environmental protection, high resilience and...

Claims

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Application Information

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IPC IPC(8): B29D35/12B29C51/46B29C51/42
CPCB29C51/42B29C51/46B29D35/122B29C43/18B29C43/56B29C2043/566B29K2075/00B29C43/52B29D35/142A43B13/187A43B13/04B29D35/0054
Inventor 林骏峰
Owner 林骏峰
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