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Composition for foam insole and method for producing foam insole using same

A composition and insole technology, which is applied in the field of foam insole manufacturing, can solve the problems of weak peeling strength, complicated bonding process, inability to absorb or discharge, etc., and achieve the effects of preventing feet from slipping, simple bonding process, and improving wearing feeling

Inactive Publication Date: 2018-03-20
株式会社东庚化学 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned Patent Document 1, foaming can be performed radially such as vertically or horizontally, and the foaming is larger than that of a mold, and the elasticity and restoring force are weak even if natural rubber is used due to the above-mentioned normal foaming structure. , and in the process of bonding fiber fabrics and insoles, adhesives (latex surface treatment) are still used, so the bonding process is complicated and the peel strength is still weak
[0008] Moreover, when it is a general insole as described above, after using for a certain period of time, it cannot absorb or discharge heat generated on the feet, sweat or moisture entering from the outside, so various bacteria and molds will be produced. Causes of various athlete's foot, eczema and bad odor

Method used

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  • Composition for foam insole and method for producing foam insole using same
  • Composition for foam insole and method for producing foam insole using same
  • Composition for foam insole and method for producing foam insole using same

Examples

Experimental program
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Effect test

Embodiment 1

[0045] With respect to 100 parts by weight of natural rubber, 2 parts by weight of zinc oxide, 2 parts by weight of stearate, 10 parts by weight of white carbon black, 5 parts by weight of calcium carbonate, 5 parts by weight of magnesium carbonate, 1 part by weight of 2-mercaptopiperidine catalyst, 1 part by weight of dibenzothiazole disulfide catalyst, 0.1 part by weight of aldehyde amine accelerator, 1 part by weight of processing oil, and 1 part by weight of sulfur as an additive for foam and containing azo Vertical expansion foaming of 1 weight part of diformamide foaming agent, 2 weight parts of flour, 1 weight part of sodium bicarbonate, 2 weight parts of loess, 1 weight part of calcined calcium oxide and 1 weight part of rosin as a homogeneous compounding agent After spraying (S100), use a calender to make a mat shape, and cut it into a size corresponding to the size of the mold (S200), then place the fiber fabric on the mold (S300), place the cut mat on the fiber fabri...

Embodiment 2

[0047] With respect to 100 parts by weight of natural rubber, 10 parts by weight of zinc oxide, 10 parts by weight of stearate, 50 parts by weight of white carbon black, 20 parts by weight of calcium carbonate, 20 parts by weight of magnesium carbonate, 3 parts by weight of 2-mercaptopiperidine catalyst, 5 parts by weight of dibenzothiazole disulfide catalyst, 5 parts by weight of aldehyde amine accelerator, 10 parts by weight of processing oil, and 3 parts by weight of sulfur additives for foams and azo Vertical expansion foaming of 5 parts by weight of diformamide foaming agent, 20 parts by weight of flour, 10 parts by weight of sodium bicarbonate, 10 parts by weight of loess, 10 parts by weight of calcined calcium oxide and 10 parts by weight of rosin as a homogeneous compounding agent After spraying (S100), use a calender to make a mat shape, and cut it into a size corresponding to the size of the mold (S200), then place the fiber fabric on the mold (S300), place the cut ma...

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PUM

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Abstract

The present invention relates to a composition for a foaming insole and a foaming insole manufacturing method using the same and, more specifically, to a composition for a foaming insole containing natural rubber, vertically expandable foaming agent and various additives for a foaming body, and a foaming insole manufacturing method using the same, which enable the natural rubber to be expanded to a size of a mold by the vertically expandable foaming agent, thereby semi-permanently maintain high elasticity (excellent compression set); in addition, firmly adhere fiber fabric to the insole even without using an adhesive, thereby simplifying an adhering process, preventing foot slippage and enhancing wearing sense; and moreover, preventing various bacteria and fungi and athlete's foot, eczema and foul odor therefrom by an anti-bacteria function and a moisture absorption function, thereby always maintaining the foot in a comfortable state.

Description

technical field [0001] The present invention involves foaming natural rubber with a size of 1:1 with the mold, which can maintain high elasticity semi-permanently (excellent compression permanent expansion ratio), and can firmly bond fiber fabrics and insoles without using adhesives. Antibacterial function and water absorption function, composition for foaming insoles for keeping feet always fresh, and method for producing foaming insoles using the composition for foaming insoles. Background technique [0002] Generally, an insole is a part that is inserted into the inner side of a shoe and comes into contact with the foot, and not only improves the feeling of wearing the shoe, but also absorbs and relieves impact on the foot. [0003] As mentioned above, general insoles are usually produced by foaming ethylene vinyl acetate or polyurethane, but after a certain period of use, the foam units are compressed and lose their elasticity and resilience. [0004] In the case of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/22C08K3/36C08K3/26C08K3/06C08J9/10C08J9/08A43B17/14
CPCA43B17/14C08J9/08C08J9/103C08J2203/02C08J2203/04C08J2307/00C08J2491/00C08J2491/06C08L7/00C08L2203/14C08L91/00C08K13/02C08K2003/2296C08K3/36C08K2003/265C08K2003/262C08L91/06
Inventor 宋东俊
Owner 株式会社东庚化学
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