JP2000354502A - Sock for shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sock for a shoe sole having a high buffer function and having an effect of antibacterial deodorization. SOLUTION: A gel composition containing chlorine dioxide which is provided with an outer packaging material 12 of a high molecular film capable of transmitting chlorine dioxide gas on at least a front surface side and makes highly water absorbing resin absorb chlorite aqueous solution or aqueous solution containing chlorite and chlorate is filled within the outer packaging material 12. In the outer packaging material 12, a projection part 21 of the gel composition containing chlorine dioxide is formed in a part in contact with the arch of the foot and in the vicinities of other fingers of the foot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insole for a shoe sole having an antibacterial deodorizing effect and also having a shock absorbing function.

[0002]

2. Description of the Related Art Conventionally, insoles for shoe soles have been proposed which have various functions such as antibacterial deodorizing property and improvement of wearing feeling. For example, Japanese Utility Model Laid-Open Publication No. 7-30715 proposes a shoe with an insole inserted in the sole to improve the fit and shock absorbing function of the shoe. The insole for a shoe sole disclosed in this publication is one in which a gel of a water-absorbing polymer is filled between synthetic resin films.

On the other hand, Japanese Utility Model Laid-Open No. 7-25806 discloses that
Those that maintain the antibacterial and deodorant function have been proposed. The insole for soles disclosed in this publication, the upper layer and the lower layer are formed of felt material, using a material subjected to antibacterial and deodorant treatment on the upper layer, using an untreated material for the lower layer, These are alternately stacked in multiple layers.

[0004]

However, in the former case of the above-mentioned prior art, the gel of the water-absorbing polymer is simply filled between the films, and the gel in the high pressure portion escapes to the surroundings, resulting in a sufficient buffer. It had no effect. Moreover, it has only a buffering action,
It did not have other functions such as antibacterial deodorization.

In the latter case of the prior art, the use of an antibacterial and deodorant material for the upper layer prevents the antibacterial and deodorant function from being impaired even if the surface is worn out during contact with the foot during use. However, it did not have a cushioning function to give a comfortable feeling to the foot.

[0006] The present invention has been made in view of the above-mentioned problems of the prior art, and has a high buffering function.
An object of the present invention is to provide an insole for a shoe sole which also has an effect of antibacterial deodorization and the like.

[0007]

In order to achieve the above object, a shoe insole according to the present invention is provided with at least a polymer film exterior material through which chlorine dioxide gas is permeable, The above packaging material is filled with a chlorine dioxide-containing gel composition obtained by absorbing an aqueous solution of an acid salt or an aqueous solution containing chlorite and chlorate into a superabsorbent resin.

Further, the polymer film is a low-density terephthalate film or a polyethylene film, which is a material permeable to chlorine dioxide. Alternatively, the polymer film has small holes through which chlorine dioxide gas can pass, to such an extent that the chlorine dioxide-containing gel composition does not flow out.

The chlorite is an alkali metal salt or an alkaline earth metal salt, and the superabsorbent resin is a crosslinked sodium polyacrylate or a polymer of fumaric acid. In the exterior material, a swelling portion of the chlorine dioxide-containing gel composition is formed in a portion in contact with the arch of the foot, in the vicinity of other toes, or the like. The raised portion of the chlorine dioxide-containing gel composition changes into a shape corresponding to the shape of the arch at the arch of the foot.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an insole for a shoe sole according to the present invention will be described with reference to the drawings. In the insole 10 for a shoe sole according to this embodiment, a cladding material 12 made of a polymer film permeable to chlorine dioxide gas is formed in the shape of a foot, and two peripheral portions 14 are heat-welded to each other. This polymer film is a low-density terephthalate film or a polyethylene film, which is a material that can transmit and thermally bond chlorine dioxide gas released from the chlorine dioxide-containing gel composition 16 filled therein as described later.

This chlorine dioxide-containing gel composition 16 comprises:
It is formed by absorbing an aqueous solution of chlorite or an aqueous solution containing chlorite and chlorate into a superabsorbent resin. The superabsorbent resin is a crosslinked product of sodium polyacrylate or a polymer of fumaric acid.

The chlorite is an alkali metal salt or an alkaline earth metal salt.
For example, sodium chlorite, potassium chlorite, or the like, or alkaline earth metal chlorite, for example, calcium chlorite, magnesium chlorite, or the like can be used. Further, as the chlorate, an alkali metal salt,
For example, lithium chlorate, sodium chlorate or potassium chlorate and the like, or alkaline earth metal chlorates,
For example, calcium chlorate, magnesium chlorate and the like can be used. Preferred are sodium chlorate and potassium chlorate.

An injection port 20 for the gel composition 16 containing chlorine dioxide is formed in a part, for example, a heel, of a part of the foot-shaped exterior material 12 which is overlapped and adhered. The injection port 20 is filled with the chlorine dioxide-containing gel composition 16 and then thermally fused after injection.
Seal.

Also, the toe portion of the exterior material 12
In order to prevent the chlorine dioxide-containing gel composition 16 filled therein from leaking and to make the length of the insole 10 for shoe soles adjustable, three cut-off welded portions 22 are appropriately formed from the toe portion. Have been. Further, a hygroscopic material 18 made of cloth or the like is attached to the back side of the shoe sole insole 10.

A portion of the insole 10 for soles in contact with the arch of the foot is formed with a central welded portion 19 in which the front and back exterior materials 12 are welded in the longitudinal direction of the foot. A raised portion 21 of the exterior material 16 is formed by the chlorine-containing gel composition 16. Further, a short central welded portion 23 is formed outside the foot in parallel with the central welded portion 19. Further, a toe-side central welded portion 25 in which the exterior material 16 is partially welded in the direction in which the toes are arranged is formed on the toe portion of the foot.

The shoe insole 10 of this embodiment is shipped in a packaging bag (not shown) formed by laminating a polymer film in multiple layers to prevent the passage of chlorine dioxide gas. As a packaging bag through which chlorine dioxide gas does not permeate, a bag in which a chlorine dioxide impermeable polymer film is laminated on the outside of the heat-fusible polymer film and a polyethylene terephthalate film is laminated on the outside thereof is used.

The method of using the shoe sole insole 10 of this embodiment is as follows. The shoe sole insole 10 is taken out of the chlorine dioxide impermeable film packaging bag, and if necessary, the cut-off welding portion 22 is used. Cut off the tip at the part, adjust the size and spread it on the sole of the shoe.

According to the shoe sole insole 10 of this embodiment,
The exterior material 12 is a chlorine dioxide gas permeable film,
The chlorine dioxide gas emitted from the internal chlorine dioxide-containing gel-like composition 16 is gradually released from the exterior material 12, and sterilizes and deodorizes the inside of the shoe sole and also sterilizes and deodorizes the sole of the foot. In addition, the chlorine dioxide-containing gel composition 16 is used as the exterior material 1
A central weld 19 is formed at the portion corresponding to the arch 2 of FIG.
A raised portion 21 is formed at a portion corresponding to the arch to reliably support the arch. In addition, the other central welding portion 2
3. The raised portions 26, 27 and 28 are appropriately formed in the respective parts by the toe-side central welded portion 25 to appropriately support the soles of the feet, so that a comfortable wearing feeling is given and the cushioning effect is enhanced. Further, the bulging portion 21 of the chlorine dioxide-containing gel-like composition 16 changes into a shape corresponding to the shape of the corresponding arch at the arch of the foot, and gives a massage effect to the sole of the foot as walking.

The insole for soles of the present invention is not limited to the above embodiment, and the polymer film is so small that the chlorine dioxide-containing gel composition does not flow out into a urethane sheet or the like. It may be a hole having a small hole through which chlorine dioxide gas can pass. In this case, the position at which the small hole is formed, the density, and the diameter of the small hole can be appropriately set.
It is preferable to form small holes in the raised portion 28 on the toe side. When these pores are formed, the pores are extremely small, so they are put into the sole of the shoe and used. When pressure is applied, chlorine dioxide gas is released. When no pressure is applied, the pores close and chlorine dioxide gas is released. It is also possible not to do so. Thereby, the chlorine dioxide in the gel can be made to last longer.

The exterior material may be a polymer film at least on the front side through which chlorine dioxide gas can pass, and the back side may be a film impermeable to chlorine dioxide. Further, the welded portion at the center of the exterior material can be set as appropriate, and a welded portion may be formed in addition to the above embodiment, and a part of the welded portion of the above embodiment may be omitted.
Further, the gel inlet may be located outside the heel, at the toe, or at another location. Further, the moisture absorbent provided on the back surface may be appropriately provided as needed, and may not be provided.

[0021]

According to the insole for shoe sole of the present invention, since the chlorine dioxide-containing gel composition is filled in an exterior material through which chlorine dioxide gas can pass, the chlorine dioxide gas can be stably and continuously released. It can exhibit its sterilizing, deodorizing, and antibacterial effects for a long period of time, and is excellent in safety. Furthermore, since gel was used as the cushioning material for the insole, the buffering effect was high,
Furthermore, by forming a welded part on the exterior material in the center, an appropriate swelling part is formed and the foot is more securely supported, so that the insole fits comfortably on the foot when wearing shoes, and light walking Becomes possible. In addition, a swelling portion or the like corresponding to the arch changes with walking, thereby producing a massage effect.

[Brief description of the drawings]

FIG. 1 is a front view of an insole for a shoe sole according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Insole for shoe sole 12 Exterior material 14 Peripheral part 16 Gel composition containing chlorine dioxide 19, 23, 25 Welding part 21, 26, 27, 28 Rising part

Claims (5)

[Claims] 1. A chlorine dioxide-containing gel-like composition comprising a polymer film exterior material through which chlorine dioxide gas is permeable, and an aqueous solution of chlorite absorbed by a highly water-absorbent resin. An insole for shoe soles, which is filled in the inside. 2. The insole for a shoe sole according to claim 1, wherein the polymer film is a low-density terephthalate film or a polyethylene film, which is a material permeable to chlorine dioxide. 3. The insole for a shoe sole according to claim 1, wherein the polymer film has small holes formed so that the chlorine dioxide-containing gel composition does not flow out. 4. The chlorite is an alkali metal salt or an alkaline earth metal salt, and the superabsorbent resin is a crosslinked sodium polyacrylate or a polymer of fumaric acid. Or the insole for a shoe sole according to 3. 5. The exterior material according to claim 1, wherein the raised portion of the chlorine dioxide-containing gel composition changes into a shape corresponding to the shape of the arch at a portion corresponding to the arch of the foot. The insole for a shoe sole according to 2, 3, or 4.