KR101354204B1 - Outsole with antibiotic function - Google Patents

Abstract

The present invention relates to an outsole and, more specifically, to an outsole having an excellent antibacterial function against the causative bacteria of athlete's foot. The outsole having an antibacterial function comprises a pad composed of 25 to 60 wt% of one or more kinds of binder resins selected from the group consisting of a phenolic resin-based binder, an epoxy resin-based binder, a vinyl resin-based binder, and an urethane-based binder; 25 to 60 wt% of cork; and 2 to 30 wt% of Eisenia bicyclis having an antibacterial function against the causative bacteria of athlete's foot.

Description

Outsole with antibiotic function {Outsole with antibiotic function}

The present invention relates to a shoe sole, and more particularly to a shoe sole having excellent antibacterial function against athlete's foot causative bacteria.

In general, since the structure of the shoes is to cover the entire surface below the ankle, it is not easy to ventilate, so when worn for a long time, waste products such as sweat secreted from the foot are not released to the outside and stagnate inside the shoe. . Wastes stagnated with sweat create good growth conditions for bacteria and microorganisms that are harmful to the human body, which not only causes foot odor but also causes various diseases such as athlete's foot.

On the other hand, the sole of the shoe refers to the bottom of the shoe, usually including the insole and pads, shoe soles.

Therefore, various functional shoe insoles have been proposed to solve this problem. For example, Korean Patent Publication No. 10-2006-0020334 discloses a loess powder composition for shoe insole obtained by mixing at a ratio of 85% by weight of ocher powder, 10% by weight of natural brush powder and 5% by weight of antibacterial deodorant powder.

However, the techniques disclosed recently, including the shoe insole ocher powder composition has a problem that the antibacterial activity against athlete's foot causative bacteria is insufficient and does not reliably solve the unpleasant smell of the outbreak.

Republic of Korea Patent Publication No. 10-2006-0020334

The present invention has been made to solve the above problems, an object of the present invention is to provide a shoe sole having an antimicrobial function that has excellent antibacterial activity against athlete's foot causative bacteria and the like to comfortably maintain the environment inside the shoe.

Another object of the present invention is to provide a shoe sole having an antimicrobial function by stacking a pad having an antimicrobial function on the upper surface of the shoe sole and having an antimicrobial power to comfortably maintain the environment inside the shoe.

Sole with antibacterial function to achieve the above object,

Antibacterial activity against 25 to 60% by weight of one or more binder resins, cork 25 to 60% by weight, and athlete's foot fungi selected from the group consisting of phenolic resin binders, epoxy resin binders, vinyl resin binders, acrylic resin binders and urethane binders It characterized in that it comprises a pad consisting of 2 ~ 30% by weight of Rhubarb (Eisenia bicyclis) extract.

The rhubarb extract,

Removing fiber from the rhubarb (Eisenia bicyclis) using a juicer;

Adding a low alcohol of 2-5 times C1 to C4 to the weight of the rhubarb used in the rhubarb juice from which the fiber was removed, stirring to filter the solution, and drying to obtain a brown powder;

Dissolving the brown powder in distilled water (50 ° C.) of 15 to 25 times the weight of the brown powder, followed by mixing and mixing with 5 to 15 times the polyvinylpyrrolidone (PVPP) resin to the weight of the brown powder;

Removing the solvent from the mixture and washing the PVPP resin with distilled water; And

Put the lower alcohol of C1 ~ C4 in the washed PVPP resin, and then stirred, prepared by including taking a solution and drying.

In addition, the pad is characterized in that it further comprises one or more selected from the group consisting of silver nanoparticles and copper powder.

In addition, the pad is laminated to the seating groove formed in the upper portion of the shoe sole and characterized in that the insole is attached to the upper portion of the pad is stacked.

The present invention has the effect of having an antibacterial function by laminating a pad having an antibacterial function on the upper surface of the shoe sole and having an antibacterial activity to comfortably maintain the environment inside the shoe.

In addition, the pad has an excellent antimicrobial activity against athlete's foot fungi, etc., has the effect of keeping the environment inside the shoe comfortable.

1 is a configuration of a pad and an insole according to an embodiment of the present invention shoe sole.
2 is a state in which the pad according to an embodiment of the present invention shoe sole is applied to a portion of the shoe sole.
3 is a cross-sectional view taken along the line AA of FIG.
4 is a state in which the pad according to an embodiment of the present invention shoe sole is applied to the upper portion of the shoe sole.
5 is a state in which the pad according to the embodiment of the shoe sole of the present invention is applied to a portion of the high heel of the shoe sole.

Hereinafter, embodiments of the present invention will be described in detail. However, it should be understood that the present invention is not limited thereto, and the present invention is only defined by the scope of the following claims.

The present invention is 25 to 60% by weight of at least one binder resin selected from the group consisting of phenolic resin binder, epoxy resin binder, vinyl resin binder, acrylic resin binder and urethane binder, cork 25 ~ 60% by weight, and athlete's foot bacteria It relates to a shoe sole comprising a pad (10) consisting of 2 to 30% by weight of extract of rhubarb (Eisenia bicyclis) having antimicrobial activity.

The rhubarb (Eisenia bicyclis) extract is a kind of brown algae and shows excellent antibacterial activity against skin fungi Trichophyton, T.rubrum, T.mentagrophytes, which is a representative causative agent of athlete's foot. Therefore, the pad 10 prevents the infestation of germs harmful to the human body so that the shoes can be kept comfortable.

The pad 10 may further include at least one selected from the group consisting of silver nanoparticles and copper powder, and at least one selected from the group consisting of silver nanoparticles and copper powder may be used based on the total weight of the pad. It may be included in 2 to 10% by weight.

The phenol resin-based binder, epoxy resin-based binder, vinyl resin-based binder, acrylic resin-based binder, and urethane-based binder are not particularly limited, and those commonly used in the art may be used. The binder resin is preferably included in the 25 to 60% by weight relative to the total weight of the pad when considering the durability of the pad (10).

The cork is not particularly limited and may be one commonly used in this field. The cork is preferably included in the 25 to 60 weight relative to the total weight of the pad in terms of cushioning, durability and economy of the pad.

The rhubarb (Eisenia bicyclis) extract is preferably contained in 2 to 30% by weight based on the total weight of the pad. When the rhubarb extract is included in less than 2% by weight, it is difficult to expect antibacterial activity, and when it exceeds 30% by weight, the physical properties of the pad are lowered, and the economical efficiency is lowered.

The rhubarb extract, the step of removing the fiber from the rhubarb (Eisenia bicyclis) using a juicer;

Adding a low alcohol of 2-5 times C1 to C4 to the weight of the rhubarb used in the rhubarb juice from which the fiber was removed, stirring to filter the solution, and drying to obtain a brown powder;

Dissolving the brown powder in distilled water (50 ° C.) of 15 to 25 times the weight of the brown powder, followed by mixing and mixing with 5 to 15 times the polyvinylpyrrolidone (PVPP) resin to the weight of the brown powder;

Removing the solvent from the mixture and washing the PVPP resin with distilled water; And

Put the lower alcohol of C1 ~ C4 in the washed PVPP resin and then stirred, can be prepared, including the step of taking a solution and drying.

Examples of the lower alcohol of C1 to C4 include methanol, ethanol, propanol, butanol, and the like, and ethanol may be particularly preferably used.

In addition, the pad 10 may further include additives that are conventionally added for antibacterial, anti-odor, and the like in this field.

Hereinafter, the present invention will be described in more detail by way of examples. However, the following examples are intended to further illustrate the present invention, and the scope of the present invention is not limited by the following examples. The following examples can be appropriately modified and changed by those skilled in the art within the scope of the present invention.

Example 1 Preparation of Rhubarb Extract

Fresh rhubarb (Eisenia bicyclis, 1kg) was juiced using a juicer, and after removing the fiber, 95% ethyl alcohol (4L) was added and stirred at room temperature for 30 minutes to filter out the solution, and dried to dry 58 g of brown. A powder was obtained. The obtained dry powder was dissolved in 20 times distilled water (50 ° C.), mixed with a polyvinylpyrrolidone (PVPP) resin (10 times the weight of the dry powder), stirred (50 ° C., 1hr), and the solution was filtered off. And washed with a sufficient amount of distilled water (more than 5 times of PVPP resin by weight). 95% ethanol (3 times the weight of PVPP resin in weight ratio) was added to the washed PVPP resin, stirred at room temperature for 30 minutes, filtered, and the solution was taken and dried to obtain 8 g of a dark brown powder.

Example 2: Preparation of Pads

7 kg of a urethane binder and 7 kg of cork powder were mixed uniformly, and 1 kg of rhubarb extract prepared in Example 1 was added to the mixture and mixed uniformly. The mixture was placed in an 80 ° C. drier and dried, then placed in a mold for 30 minutes at a temperature of about 120 ° C. to complete the pad molded article.

Test Example 1 Evaluation of Antibacterial Activity of Rhubarb Extract

Evaluation of the antimicrobial activity of rhubarb extract prepared in Example 1 was carried out by measuring the inhibitory activity against T.rubrum in the skin fungus Trichophyton, the causative agent of athlete's foot, using the Agar diffusion method. Antibacterial activity was carried out by plate medium diffusion method using a paper disk containing rhubarb extract. First, T.rubrum strains were cultured (Modified Leeming and Notman agar medium, 0.1% polypeptone, 2.0% glucose, 5.0% Malt extract, 2.0% desiccated ox bile, 0.2% glycerol, 1.0% Tween 40 and 2.0% agar in distilled incubated at 36 ° C. Meanwhile, 5 mg of rhubarb extract samples were dissolved in 50 μl of ethanol, and then absorbed to spread evenly on an annular paper having a diameter of 8 mm and a thickness of 1.5 mm, the solvent was completely evaporated, and the inoculated mLNA (inoculated with the cultured T.rubrum strain) Modified Leeming and Notman agar medium) was tested on antibacterial activity on a plate medium. After 48 hours of incubation under the same culture conditions, the diameter of the circular growth resistant ring formed around the paper disc impregnated with the sample was measured, and then the diameter of the disc (8 mm) was subtracted and divided by 2 (lower radius). Relative antimicrobial activity was compared. The results are shown in Table 1 below.

sample Antibacterial activity (lower radius, mm) Control (ethanol) 0 Rhubarb extract 8

Test Example 2: Evaluation of antimicrobial activity of the pad containing rhubarb extract

A test for evaluating the antimicrobial activity of the pad prepared in Example 2 was performed. The antibacterial activity was verified by the method of film adhesion (JIS Z 2801-2000), by smearing the bacterial solution on the surface of the pad prepared in Example 2, and measuring the number of strains after incubation at 37 ° C. for 24 hours. Was performed accordingly. At this time, as the strain to be used was used dermis fungus Trichophyton, T.rubrum cultured in the same manner as in Test Example 1.

sample Early
(CFU / mL) 24 hours later
(CFU / mL) Bacterial reduction rate
(%) Example 2 Preparation
Shoe insole pad 1.3 ㅧ 10 ⁴ <10 99.90%

As shown in Table 2, in the case of the pad 10 of the present invention, it was confirmed that the bacterial reduction rate was high as 99.90% after 24 hours.

The pad 10 and the insole 30 forming the shoe sole having the antibacterial function of the present invention may be configured in any form as illustrated in FIG. 1.

2 and 3, the pad 10 is laminated with the pad 10 on the top of the heel of the shoe sole 20 and attaches the insole 30 to the top of the pad 10 for antibacterial function. It can be used as a shoe sole.

In addition, as illustrated in FIG. 4, the pad 10 forms a seating groove in the upper portion of the shoe sole 30, stacks the pad 10 in the seating groove, and insole 30 in the upper portion of the pad 10. ) Can be used as a shoe sole with antibacterial function.

In addition, the pad 10 is a shoe sole having an antibacterial function by stacking the pad 10 on top of the high heel 30 as shown in FIG. 5 and attaching the insole 30 to the top of the pad 10. It can be used as.

The pad 10 as described above has excellent antimicrobial activity against athlete's foot causative bacteria and the like and can comfortably maintain the environment inside the shoe.

10: pad
20: shoe soles
30: insole

Claims (4)

Antibacterial activity against 25 to 60% by weight of one or more binder resins, cork 25 to 60% by weight, and athlete's foot fungi selected from the group consisting of phenolic resin binders, epoxy resin binders, vinyl resin binders, acrylic resin binders and urethane binders Shoe sole having antibacterial function, characterized in that it comprises a pad (10) consisting of 2 to 30% by weight of the extract Rhubarb (Eisenia bicyclis).
The method according to claim 1, wherein the rhubarb extract,
Removing fiber from the rhubarb (Eisenia bicyclis) using a juicer;
Adding a low alcohol of 2-5 times C1 to C4 to the weight of the rhubarb used in the rhubarb juice from which the fiber was removed, stirring to filter the solution, and drying to obtain a brown powder;
Dissolving the brown powder in distilled water (50 ° C.) of 15 to 25 times the weight of the brown powder, followed by mixing and mixing with 5 to 15 times the polyvinylpyrrolidone (PVPP) resin to the weight of the brown powder;
Removing the solvent from the mixture and washing the PVPP resin with distilled water; And
Put the lower alcohol of C1 ~ C4 in the washed PVPP resin and stirred, taking out the solution and drying the shoe sole having an antibacterial function, characterized in that it was prepared.
The method according to claim 1,
The pad 10 is a shoe sole having an antimicrobial function, characterized in that it further comprises one or more selected from the group consisting of silver nanoparticles and copper powder.
4. The method according to any one of claims 1 to 3,
The pad 10 is,
Shoe sole having an antimicrobial function, characterized in that forming a seating groove in the upper portion of the shoe hoof 20, laminating the pad 10 in the seating groove, and attaching the insole 30 to the top of the pad (10). .

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