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Production method of polyurethane insole material

A production method and polyurethane technology, which can be applied to insoles, footwear, household components, etc., can solve the problems of high density, heavy weight, and odor in shoes, and achieve improved air permeability, light weight, and high foaming rate. Effect

Inactive Publication Date: 2010-10-20
DONGGUAN CHENGGUAN SPORT PROD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyurethane insole produced in this way has a layer of skin on the surface, so it is not breathable, and bacteria are easy to breed inside the shoe. If it is not replaced for a long time, it will make the inside of the shoe smelly. Even if antibacterial agents are added to the raw materials, this problem cannot be solved fundamentally.
[0005] In addition, the density of insoles produced by the usual closed-mold casting method is very high, and it is difficult to lower them. Therefore, the weight is relatively large, and it is difficult to meet consumers' requirements for insoles that are as light as possible.
[0006] In addition, this method can only produce insoles with a single performance, and cannot realize the composite of different performances.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] To produce insoles made of dark green polyurethane material, the polyol composition and isocyanate were placed in a constant temperature room at 25°C for 5 hours; the mold used to prepare polyurethane was filled with a mold release agent, and the mold was subjected to a 55°C hot water cycle. Heat to keep the temperature of the mold at 45°C; pour the weighed polyol composition into the mixing bucket, add 1027 amine gel catalyst, 9406 silicone oil, antibacterial agent, water (or low boiling point compound), green paste Mix with rubber powder and stir for 120 seconds; then add the isocyanate compound and stir rapidly for 20 seconds; pour the stirred mixture into the mold within 5 seconds, blow out the air bubble holes with an air gun, then cover the mold and lock it with a screw Tighten the mold; after 45 minutes of aging, demould the material and cut it into pieces according to the size required for the insole.

Embodiment 2

[0031] To produce insoles made of black polyurethane material, place the polyol combination and isocyanate in a constant temperature room at 7°C for 5 hours; apply a mold release agent to the mold used to prepare polyurethane, and heat the mold with a 50°C hot water cycle , keep the temperature of the mold at 45°C; pour the weighed polyol composition into the mixing bucket, add 1027 amine gel catalyst, 9406 silicone oil, antibacterial agent, water (or low boiling point compound), black paste and Rubber powder and stir for 150 seconds; then add the isocyanate compound and stir rapidly for 10 seconds; pour the stirred mixture into the mold within 5 seconds, blow out the air bubble holes with an air gun, then cover the mold and lock it with a screw Mold; after 35 minutes of aging, demoulding and discharging, cut into pieces according to the size required for the insole.

Embodiment 3

[0033] To produce insoles made of yellow polyurethane material, place the polyol combination and isocyanate in a constant temperature room at 15°C for 8 hours; apply a release agent to the mold used to prepare polyurethane, and heat the mold with a 60°C hot water cycle , keep the temperature of the mold at 48°C; pour the weighed polyol composition into the mixing bucket, add 1027 amine gel catalyst, 9406 silicone oil, antibacterial agent, water (or low boiling point compound), yellow paste and Rubber powder and stir for 130 seconds; then add the isocyanate compound and stir rapidly for 15 seconds; pour the stirred mixture into the mold within 5 seconds, blow out the air bubble holes with an air gun, then cover the mold and lock it with a screw Mold; after 40 minutes of aging, demoulding and discharging, cut into pieces according to the size required for the insole.

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PUM

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Abstract

The invention relates to a production method of a polyurethane insole material, which comprises the steps of putting raw material into a thermostatic chamber with the temperature of 7-35 DEG C and standing still for 5-8 hours; applying a release agent in a mould used for preparing polyurethane, and maintaining the temperature of the mould at 45-48 DEG C; pouring polyalcohol composite into a mixing tank, adding a catalyst, a surfactant, an antimicrobial agent, a foaming agent, color paste and an opening agent and stirring for 120-150 seconds, and then adding isocyanate and stirring for 10-20 seconds; pouring the stirred mixture into the mould within 5 seconds, blowing away crafters by a blower gun, and then covering and locking the mould; and demoulding for material outlet after 35-45 minutes, and then cutting into slices according to the required size of the insole. Compared with the original mould closing pouring mode, the surface of each insole prepared in the production method of the polyurethane insole material can not generate a layer of airtight skin, and has higher foaming rate, lighter weight and obviously improved air permeability.

Description

technical field [0001] The invention relates to a method for preparing an insole material, in particular to a method for producing a polyurethane insole material. Background technique [0002] Polyurethane is a polymer containing many carbamate groups (-NHCOO-) in the main chain of the polymer structure. It is a kind of synthetic material with a wide range of uses. Its industrial production is mainly composed of various polyhydric It is prepared by reacting alcohol combination material and polyisocyanate. By selecting raw materials with different numbers and types of functional groups, and adopting different synthesis and preparation processes, polyurethanes with different properties and various ways of expression can be prepared. essential material. [0003] An important use of polyurethane is as an insole material. Compared with ordinary EVA insoles, polyurethane insoles are environmentally friendly, light, comfortable, and not easily deformed. Therefore, they are favore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L75/08C08J9/08A43B17/14B29C39/02B29C39/44B29L31/50
Inventor 杨永全
Owner DONGGUAN CHENGGUAN SPORT PROD TECH CO LTD
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