JP2011078558A - Method of manufacturing insole using recycled material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing an insole that agrees with the concept of preservation of an environment and that reduces a low production cost. <P>SOLUTION: The method of manufacturing the insole includes: stirring and mixing a shoe recovery material which is obtained by collecting shoes and is composed by pulverizing them into minute granules and whose weight ratio to the entire raw materials is 15-35%, wood recovery material which is obtained by collecting wood and is composed by pulverizing the wood into granules or chips having a diameter of not more than 5 mm and whose weight ratio to the entire raw materials is 5-65%, basic rubber material which is composed by adding additives and fillers to natural rubber and/or synthetic rubber and whose weight ratio to the entire raw materials is 5-75%, and a foaming agent whose weight ratio to the entire raw materials is 1-2%, as raw materials; rolling the uniformly stirred and mixed raw materials to a flat shape to make it a plated material for manufacturing the insole; cutting the plated material to a suitable size; charging the cut plated material into a die, pressing and molding the cut materials; and further, heating the die and continuously pressing them to stabilize the molded shape. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a method for manufacturing a shoe insole, and more particularly to a method for manufacturing a shoe insole by collecting discarded shoes and the like as raw materials.

Natural resources are not easy to regenerate. The scope of renewable resources is also limited. Therefore, it is important to recycle various resources on the premise that the destruction of the natural environment will not be accelerated any further. Recycling can directly reduce consumption and waste of resources and materials.

The inventor developed a recycled material from discarded shoes several years ago and applied for a patent in Taiwan. The application number is 96140643. The technique disclosed in the patent application is to collect discarded shoes and reuse them as materials such as shoe soles. According to such a technique, discarded shoes can be used as recycled resources and can be recycled and used, so that new resources are not consumed or wasted.

The shoe sole is a part that is heavily consumed, and rubber is usually used. However, in addition to the sole, the insole of the shoe is a part that consumes a large amount of material. For this reason. The industry sees it as a separate direction of research and development.

The current insole of shoes is in direct contact with the sole of the foot, so health considerations are a trend in research and development. Usually, the material of the insole is soft and elastic, and a cloth is used on the surface or leather so that a favorable feeling can be obtained when the sole of the foot contacts. Other new materials are also included in the options.

However, the selection of these materials is clearly reminiscent of the spirit given the idea of environmental conservation. Therefore, from the concept of environmental conservation, we select recycled materials as materials for insoles, how to achieve good usability as insoles, and effectively reduce environmental pollution and benefit the natural environment. The question of what to do is taken up as an important improvement direction in the current research and development. Therefore, applying the technology that collects the above-mentioned shoes, which is the prior art, and reuses it as material for the soles, to the insole of the shoes and to promote environmental conservation without fail is enough to actively research and develop. It is something to be included.

Taiwan Patent Application No. 96140643

An object of the present invention is to provide a method for manufacturing a shoe insole that meets the concept of environmental conservation and is low in production cost.

Therefore, the present inventor collects the wood, pulverizes it into granules or chips of 5 mmφ or less, and collects the wood recovery material having a weight ratio of 5 to 65% with respect to the entire raw material, natural rubber and / or synthetic rubber. Additives and fillers are added, and a basic rubber material having a weight ratio of 5 to 75% with respect to the whole raw material and a foaming agent having a weight ratio of 1 to 2% with respect to the whole raw material are stirred and mixed as raw materials. The raw material that has been uniformly stirred and mixed is rolled into a plate shape to form a plate material for shoe insole manufacturing, the plate material is cut into an appropriate size, put into a mold, pressed and molded, The present invention has been completed based on such knowledge, focusing on the point that the problem can be solved by a method of manufacturing a shoe insole that includes a step of heating the mold and continuously pressurizing to stabilize the molded shape. .

The present invention will be specifically described below.
The method for producing a shoe insole according to claim 1 is a shoe collection material in which shoes are collected and pulverized into fine granules, and the weight ratio with respect to the entire raw material is 15 to 35%.
A wood recovery material that is obtained by collecting wood and pulverizing it into granules of 5 mmφ or less, or chips, and having a weight ratio of 5 to 65% with respect to the whole raw material;
A basic rubber material in which additives and fillers are added to natural rubber and / or synthetic rubber, and the weight ratio with respect to the whole raw material is 5 to 75%;
Stirring and mixing as a raw material a foaming agent having a weight ratio of 1 to 2% with respect to the whole raw material,
The raw material that has been uniformly stirred and mixed is rolled into a plate shape, and used as a plate material for shoe insole manufacturing,
The plate material is cut into an appropriate size, put into a mold, pressed and molded, further heated, and continuously pressed to stabilize the molded shape.

The method for producing a shoe insole according to claim 2 is obtained by mixing bamboo vinegar and essence oil in the step of stirring and mixing the raw material in claim 1, and the weight ratio with respect to the whole raw material is 1 to 2%. Add fragrance.

By adding the fragrance, effects such as deodorization and antibacterial effects can be obtained on the insole.

The method for producing a shoe insole according to claim 3 is characterized in that the additive in claim 1 is a cross-linking agent, an accelerator, an activator, a deterioration inhibitor, a processing aid, or a rubber softening oil. Including.

In the method for producing a shoe insole according to claim 5, the thickness of the plate material for producing the shoe insole according to claim 1 is between 1 and 50 mm.

When the plate material for manufacturing the shoe insole has a predetermined thickness, it is easy to wind up and store.

  According to the manufacturing method of the present invention, the manufacture of a shoe insole conforms to the concept of environmental conservation, can reduce the production cost, and can impart effects such as deodorization and antibacterial to the shoe insole. It has the advantage of being able to.

It is the block diagram which showed the manufacturing method of the recycling material for insoles of shoes by this invention.

  The method for manufacturing a shoe insole recycling material according to the present invention reuses the collected shoes, and similarly uses the collected wood as another kind of main material. Recycling collected shoes can reduce the weight of the material, and using the collected wood makes it possible to use the fragrance of the wood, recycling the insole of the shoes with deodorant and antibacterial action A material is obtained. In order to explain the characteristics of such a method for producing a recycled material for insoles of shoes, specific examples will be given and described in detail below with reference to the drawings.

  As disclosed in FIG. 1, in the present invention, the shoes discarded in the eleven steps are collected to obtain a rubbery material. That is, shoes such as sneakers, leather shoes, work shoes, and athletic shoes that are old, torn, or broken are collected regardless of indoor or outdoor use.

  In step 12, the collected shoes are removed by inspecting the presence or absence of metal parts such as metal fittings. That is, the metal material and the rubber material are reliably separated. This step can be easily performed with a processing device that is magnetic and adsorbs metal.

  Next, in step 13, the collected shoes are put into a pulverizer and subjected to pressurization and pulverization to form fine granules or powder of about 5 mmφ or less. The shape after pulverization is not limited.

  Next, a deodorizing process is performed in 14 steps, and a drying process is performed in 15 steps. In other words, granulated or powdered material that has been pressurized and pulverized is put into a tunnel-shaped transport device, and high-temperature deodorization processing is performed with high-temperature steam near 120 ° C to achieve recovery of the recovered material and no bromide. To do. Further, it is dried with hot air and collected in 10 steps to obtain a shoe collection material.

Separately, wood is collected in 20 steps. That is, any discarded wood material such as dismantled house wood, discarded furniture, board materials, and wooden shoes may be used.

Next, in step 21, the collected wood is appropriately pulverized, sharpened, or rubbed into fine granules, powder or chips of about 5 mmφ or less to obtain a wood recovery material.

In 30 steps, additives and fillers are mixed with natural rubber and / or synthetic rubber to obtain a basic rubber material.

Next, in step 31, the shoe collection material, the wood collection material, and the basic rubber material are put into a mixing device and stirred to mix uniformly. The shoe recovery material has a weight ratio of 5 to 60% with respect to the entire insole raw material, the wood recovery material has a weight ratio of 15 to 35% with respect to the entire insole raw material, and the basic rubber material has a weight with respect to the entire insole raw material. The ratio is 5 to 75%.

In step 22, bamboo vinegar and essence oil are mixed to obtain a fragrance having aroma, antibacterial and deodorizing effects, and added in the process of stirring and mixing in step 31. This fragrance | flavor shall be 201-2% by weight ratio with respect to the whole insole raw material.

Further, in step 23, a blowing agent is added in the process of stirring and mixing in step 31. The foaming agent has a weight ratio of 1 to 2% with respect to the entire insole raw material.

The mixing ratio of each material described above is appropriately adjusted according to the needs of the insole to be produced.

Further, in the process of stirring and mixing in step 31, an additive having a weight ratio of 5 to 10% with respect to the entire insole raw material is added. The additive includes a cross-linking agent, an accelerator, an activator, a deterioration inhibitor, a processing aid, or a rubber softening oil.

Next, the stirred raw material is rolled with a flat roller device into a plate shape to obtain a plate material for insole production. The plate material has a thickness of 1 to 50 mm. The obtained plate material is wound up for convenient storage and used for the subsequent molding process.

Next, in step 33, the plate material is cut into an appropriate size, put into a mold, and pressed with a die and a punch. In this process, for example, a complete outer surface shape of a shoe insole having an arcuate surface having special unevenness is formed.

Next, in step 34, the mold is heated and continuously pressed to stabilize the molded shape. In this case, the flow rate of the raw material in the mold is greatly increased by the aging assist effect by the additive (sulfur) added to the raw material and the ripening promoting action by the accelerator, and the mold is efficiently filled into the mold. Shoe insole molding can be achieved. The heating temperature condition is between 100 ° C. and 160 ° C., and the heating time is 4 to 15 minutes.

Remove the molded insole from the mold and finish the surface with a simple finish on the end face. The obtained shoe insole has appropriate elasticity and has a deodorizing and antibacterial effect. As described above, the method for producing a shoe insole according to the production method of the present invention can provide a shoe insole suitable for the concept of environmental conservation.

The method of manufacturing a shoe insole according to the present invention is an improvement over the method of collecting shoes that have been developed by the inventor and applied for a patent in Taiwan and reusing them as materials such as shoe soles. . That is, in this invention, as disclosed in FIG. 1, wood is recovered in 20 steps and mixed with the raw material as a wood recovery material. Furthermore, an appropriate amount of a foaming agent is added. For this reason, the insole has appropriate softness and elasticity, and the weight is reduced to improve the comfort of use. In addition, wood has a unique fragrance due to phytoncide, and in order to obtain antibacterial and deodorizing effects, bamboo vinegar and fragrances such as essence oil are mixed and added.

The present inventor, as an example, uses a shoe recovery material with a weight ratio of 26% to the entire insole material, a wood recovery material with a weight ratio of 25%, and a basic rubber material with a weight ratio of 45%. Bamboo vinegar having a weight ratio of 1.5% and an appropriate amount of additive were mixed, and a shoe insole was manufactured through the above-described steps such as compression, heating in a mold, and pressurization. Send the insole to the Taiwanese foundation “Concession Corporation 鞋 鞋 and ▼ Exercise Leave ▲ Quiet 科 Science and Technology Research Center (Foundation / Shoes and Sports, Leisure Technology Research and Development Center”) for product inspection The center received a sample of the product on August 5, 2009, began inspection, and issued an inspection report / document number (98)) 9880008C-A02 dated 13th of the same month. According to the test report, no generation or adhesion of pathogenic bacteria was observed. In addition, there was no remaining heavy metals or highly concerned materials from the European Chemicals Agency. Therefore, the manufacturing method of the present invention can provide an insole that is suitable for the concept of environmental conservation and is comfortable to use.

The above is a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, any modifications or changes that can be made by those skilled in the art, which are made within the spirit of the present invention and have an equivalent effect on the present invention, are included in the scope of the claims of the present invention. And

Claims (4)

A shoe collection material that collects shoes and pulverizes them into fine granules, and has a weight ratio of 15 to 35% with respect to the entire raw material;
A wood recovery material that is obtained by collecting wood and pulverizing it into granules of 5 mmφ or less, or chips, and having a weight ratio of 5 to 65% with respect to the whole raw material;
A basic rubber material in which additives and fillers are added to natural rubber and / or synthetic rubber, and the weight ratio with respect to the whole raw material is 5 to 75%;
Stirring and mixing as a raw material a foaming agent having a weight ratio of 1 to 2% with respect to the whole raw material,
The raw material that has been uniformly stirred and mixed is rolled into a plate shape, and used as a plate material for shoe insole manufacturing,
The sheet material is cut into an appropriate size, put into a mold, pressed and molded, further heated, and continuously pressed to stabilize the molded shape. A method of manufacturing insoles. 2. The fragrance according to claim 1, wherein the raw material is mixed with bamboo vinegar and essence oil in the step of stirring and mixing the raw material, and a fragrance having a weight ratio of 1 to 2% with respect to the whole raw material is added. A method of manufacturing insoles. The insole manufacturing method according to claim 1, wherein the additive comprises a cross-linking agent, an accelerator, an activator, a deterioration inhibitor, a processing aid, or a rubber softening oil. Method. The method for producing a shoe insole according to claim 1, wherein the thickness of the plate material for producing the shoe insole is between 1 and 50 mm.

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