JP3090078U - Insoles - Google Patents

Abstract

(57) [Summary] (Modifications) [Problem] To provide a shoe insole having a simple structure, having extremely large effects such as antibacterial, deodorant, moistureproof, and heat, and having sufficient rigidity and durability. SOLUTION: Fine particles 2 of white charcoal having a diameter of about 60 to about 100 μm on both sides of a coated cardboard 1 with an aqueous adhesive.
Is coated at about 40 g / m ² , and further, buffer sheets 3 and 4 are adhered to both outer surfaces of the sheet.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a shoe insole using white charcoal, and more particularly to a shoe insole using a special white charcoal laminated sheet paper using white charcoal, particularly Bincho charcoal.

[0002]

[Prior art]

 Since shoes are basically a mode of enclosing the living body, if the shoes are worn for a certain period of time, regardless of the size of the air permeability of the shoes, stuffiness will occur and unpleasant phenomena such as the generation of bad smells due to the growth of bacteria will occur. That is inevitable. In addition, when shoes are worn, shoes that are specially designed for that purpose are different, but shoes that are used daily are often inadequate in terms of heat retention of the feet, and are used in winter. For the use of people with chilliness, some treatment is desired.

[0003] Therefore, various attempts have been made to prevent or reduce the occurrence of these undesired states, and various products have been provided. However, although they can all produce some effect, the problems seem to be simple and involve extremely complex elements, so there is no one that can produce a complete or near-perfect effect. Not been. In order to form a sheet form using white charcoal, it is impossible to form a sheet with white charcoal itself, regardless of whether the white charcoal is exposed or the white charcoal enters inside. It is necessary to place particulate white charcoal on a sheet-like substrate and fix it.

For example, an adhesive is naturally used to put particulate white charcoal on a sheet-like base material. However, since white charcoal is extremely poor in hydrophilicity, it is not an adhesive even if it is oily or aqueous. It is difficult to bleed, that is, good wetting is not obtained, so that the adhesiveness to the sheet-like substrate is poor. In order to obtain sufficient adhesiveness, a so-called strong adhesive must be used, but even if it can be adhered to and formed into a sheet, the subsequent white coal is very easily peeled off. If a stronger adhesive is used to prevent peeling, even if the required adhesion to the sheet-like substrate is obtained, the white charcoal is completely covered by the adhesive and the external action of the white charcoal is large. Although the sheet material is restricted, the sheet material is extremely hard, that is, has low flexibility, and the characteristics as the sheet material cannot be secured.

In addition, when an adhesive is used, the adhesive enters the pores of the porous white coal, which becomes larger or smaller, and becomes clogged, thereby restricting the action of the white coal. The insole of a shoe receives a strong impact when a small area is under the load of the weight of a person, and is severely damaged and worn out. As a result, there has been no robust white charcoal sheet that can withstand it as a base material for shoe insoles. This is one of the reasons why shoe insoles using white charcoal sheets have never been offered before.

[0006]

[Problems to be solved by the invention]

 In order to solve this problem, the present invention uses a new sheet of white charcoal, especially bincho charcoal, which has sufficient properties such as robustness as a base material for shoe insoles, Despite its structure, it provides a shoe insole with extremely high antibacterial, deodorant, moistureproof, and thermal effects when worn. Specifically, it provides a shoe insole that can exhibit excellent effects and effects such as prevention of stuffiness of the foot when wearing shoes, prevention of generation of offensive odor, and thermal effect on the sole of the foot. .

[0007]

[Means for Solving the Problems]

This invention is, on both sides of the coated cardboard coated microparticles hard charcoal of about 60 to about 1 00Myu diameter of about 40 g / m ² by an aqueous adhesive, obtained by further attaching a cushioning sheet on both outer surfaces An object of the present invention is to provide an insole made of white charcoal laminated sheet. Bincho charcoal is suitable for white charcoal, and movinyl aqueous adhesive is suitable for the aqueous adhesive. The buffer sheet is preferably a porous vegetable fiber sheet or a synthetic resin nonwoven fabric. The cushioning sheet forms both outer layers of the insole of the present invention, but both may be the same or different. The synthetic resin nonwoven fabric is preferably a polypropylene nonwoven fabric.

[0008] The buffering sheet in the white charcoal laminate sheet as a base material must have as much air permeability and sufficient buffering property as possible, and furthermore, must also fulfill the role of protecting the white charcoal sheet. The molybdenum aqueous adhesive is used to coat the white charcoal, which is indispensable for forming the white charcoal layer on the base sheet material with the least possible hindrance to the performance of the white charcoal. The outer surface of the cushioning sheet is preferably embossed on at least one outer surface, preferably on both outer surfaces, to ensure higher air permeability between the sole and the sole. The shoe insole according to the present invention preferably has a shape that covers almost the front of the sole or sole like a conventional insole, but has a shape that covers a part of the sole or sole. Even so, a certain effect can be obtained.

[0009]

[Action]

 The white charcoal laminated sheet made using the movinyl aqueous adhesive used in the present invention minimizes the impregnation of the adhesive into the pores of the white charcoal, and the effect of the white charcoal is limited. Very few things. In addition, the far-infrared effect of white coal is exhibited with almost no reduction. Both the porous vegetable fiber sheet and the synthetic resin non-woven fabric, which are buffer sheets, reduce the impact to the feet and protect the white coal layer. The shoe insole of the present invention exerts effects such as antibacterial, deodorant, moistureproof, and heat when the shoe is worn. In addition, it is inferior to conventional leather insoles, for example, but it has sufficient toughness and durability that could not be imagined in the past, especially for shoe insoles using a sheet of white charcoal. It has both uses and does not cause any inconvenience in actual use.

[0010]

[Embodiment of the invention]

FIG. 1 is a perspective view of an embodiment of the shoe insole according to the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG. The shoe insole of this embodiment has a normal shape covering the entire surface of the sole (or sole). The white charcoal laminate sheet of the insole of this example is made by kneading a fine powder of Bincho charcoal having a diameter of about 80 μm with an aqueous vinyl adhesive on both sides of a coated cardboard 1 of 310 g / m ² as an intermediate base layer. Bincho charcoal layer 2 is formed by coating charcoal to be approximately 40 g / m ² , 100 g / m ² polypropylene nonwoven fabric 3 on one side, and Okapak (Fuji Industrial Co., Ltd.) having a thickness of about 2 mm on the other side. (Made by Co., Ltd.) was similarly adhered using an aqueous vinyl adhesive, and a white carbon laminated sheet having both outer surfaces embossed was die cut into a shape as shown in FIG. Although FIG. 1 shows only one of the insoles of the shoe, a pair of two mirror-sized insoles is usually used.

Test Example Test 1 A total of two male employees (two of whom had athlete's foot for many years and could not cure completely) and two female clerks who were particularly concerned about the coldness of their feet. Seven people used the pair of insoles of the example shoes for daily use. Even when the shoes were changed, the same insole was used continuously for two months. The shoes were evaluated daily for their use during use and for the smell of the feet when the shoes were removed. The evaluation indicated that almost no one felt any stuffiness during use. In addition, the evaluation of foot odor was performed by a person other than the person, but it was evaluated that there was almost no odor. These assessments did not change for the two months of use.

About two men who had athlete's foot, it was reported that almost a month and a half after use, the athlete's foot became almost unnoticeable and seemed to have healed. In addition, regarding the cooling of the toes of two women, the toes become warm while using the insole, which has the effect of clearly improving or having a positive effect on coldness compared to the previous state where the insole was not used. It was evaluated that there was. Two months later, when the insole of each user was examined for fatigue, there was no damage such as inability to use it, and for about a month it was still usable with sufficient effects.

Test 2 A deodorizing effect test on ammonia gas was performed on the white charcoal laminated sheet used for the insole of the shoe of the above embodiment. The test method is as follows. A 20 cm x 20 cm laminated sheet of white charcoal was placed as a test product in a 5-liter Tedlar bag, and air-based ammonia gas (190 ppm) was sealed. The gas concentration was measured. As a control, only the same gas was sealed in the bag, and the same operation as the test sample was performed. The test results are as shown in Table 1 below. The test results show that the white charcoal laminated sheet used in the present invention exerts an excellent deodorizing effect on ammonia gas.

[0014]

Test 3 A test for the antibacterial effect was performed using the same white charcoal laminated sheet as described above. The test method is as follows. Test bacteria: Staphylococcus aureus. Test bacterial suspension: The test bacteria are transplanted into a normal broth medium, cultured at 28 ° C. for 24 hours, and 0.4 ml of a 10-fold dilution with sterilized purified water is inoculated into 20 ml of the normal broth, and then incubated at 37 ° C. For 3 hours with shaking. This bacterial solution was diluted and adjusted using a 1/20 concentration ordinary broth medium to obtain a test bacterial suspension.

Specimen: The white charcoal laminated sheet was cut into a size of 18 mm × 18 mm, collected in a vial bottle having a 30 ml screw cap, sterilized, and dried in a clean bench for 60 minutes. Gauze was similarly treated as a control. Inoculation of the test bacterial suspension: The specimen was inoculated with 0.2 ml of the test bacterial suspension and the cap was tightened. Culture test: The vial inoculated with the test bacterial suspension was cultured at 37 ° C for 18 hours. Bacterial count measurement: After culturing, add 20 ml of 0.2% Tween 80 saline solution to the vial and shake the hand (amplitude: 30 cm, shaking 30 times) to evenly disperse the bacteria adhering to the sample. The number of viable bacteria in the vial was measured using an agar medium. Controls were also measured in the same manner. The test results were as shown in Table 2 below. The test results show that the white charcoal laminate sheet exhibits extremely excellent antibacterial action.

[0017]

Test 4 The far-infrared spectral emissivity of the same white coal laminated sheet as in Test 1 was examined by the FT-IR method in an integrated measurement wavelength range: 4 to 20 μm. The test results were as shown in Table 3 below. The test results show that the white coal laminated sheet has extremely superior far-infrared radiation ability.

[0019]

[0020]

【The invention's effect】

 Although the insole of the present invention has a simple structure, the effects and effects such as antibacterial, deodorant, moisture-proof, and heat when wearing the shoe are extremely large. It also has sufficient robustness and durability to withstand actual use. Specifically, it exerts excellent functions and effects such as prevention of foot stuffiness when wearing shoes, prevention of generation of foul odor, and thermal effect on soles.

[Brief description of the drawings]

FIG. 1 is a perspective view of a shoe insole according to the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

[Explanation of symbols]

 1 Coated cardboard 2 Bincho charcoal layer 3 Polypropylene non-woven fabric 4

Claims (7)

[Utility model registration claims] 1. A on both surfaces of the coated cardboard coated microparticles hard charcoal of about 60 to about 100μ diameter of about 40 g / m ² by an aqueous adhesive, obtained by further attaching a cushioning sheet on both outer surfaces An insole made of white charcoal laminated sheet. 2. The shoe insole according to claim 1, wherein the buffer sheet is a sheet made of a porous vegetable fiber. 3. The shoe insole according to claim 1, wherein the cushioning sheet is a synthetic resin nonwoven fabric. 4. The shoe insole according to claim 3, wherein the synthetic resin nonwoven fabric is a polypropylene nonwoven fabric. 5. The shoe insole according to claim 1, wherein the white charcoal is Bincho charcoal. 6. The insole according to claim 1, wherein the outer surface of at least one of the cushioning sheets is embossed. 7. The method according to claim 1, wherein the aqueous adhesive is movinyl.
Shoes insole.