KR102360878B1 - Antimicrobial shoes containing copper powder - Google Patents

Abstract

The present invention relates to an antibacterial shoe containing copper powder, which has antibacterial properties, by mixing copper powder having deodorizing and sterilizing effects with a foaming agent. The antibacterial shoe containing copper powder according to the present invention is made of a molding resin, wherein with respect to 100 parts by weight of polyethylene resin, 2-6 parts by weight of polyethylene resin and copper powder, 2-6 parts by weight of activated carbon, 1-3 parts by weight of an antibacterial agent, and 40-60 parts by weight of a foaming agent are blended.

Description

Antimicrobial shoes containing copper powder and manufacturing method thereof

The present invention relates to antibacterial shoes containing copper powder, and more particularly, to antibacterial shoes containing copper powder having antibacterial properties by mixing copper powder having a deodorizing and sterilizing action in a foaming agent.

BACKGROUND ART In general, footwear is a means of protecting a person's feet in the process of movement. Various types of footwear have been developed, and these developments have mainly focused on functionality related to human health. The functionality may arise from the material of the shoe, from the structure of the shoe or from an additional device. For example, functionality can be created by making the material a special synthetic resin or by adding a functional material to the material. Various kinds of materials and functional materials for improving the functionality of shoes are known.

As a prior art related to improving the functionality of shoes, there is Patent Publication No. 2007-0024111 ‘Shoe Sole’. An object of the prior art is to provide a shoe sole equipped with an absorption function, a far-infrared/anion radiation function, an antibacterial/deodorizing function, and a fragrance function from the inside of the shoe. In order to achieve the above object, the prior art discloses a shoe sole formed by mixing rice husk charcoal powder with a base material so that a reinforcing member is formed at a position corresponding to the toe of the body and a protrusion is formed at a position corresponding to the sole of the foot.

As another prior art related to improving the functionality of shoes, there is Patent Publication No. 2012-0006824 'Shoe insole containing charcoal powder and manufacturing method thereof'. The prior art aims to remove the smell of a person who has to wear shoes for a long period of time, or who has a lot of exercise or foot odor. For this purpose, the prior art is ethylene vinyl acetate (EVA), oak white charcoal produced at a high temperature of 1200 to 1300 ℃ with charcoal based on 100 parts by weight of any one polymer resin selected from acrylic urethane polymers or 1200 to 1300 ℃ of 1 to 5 parts by weight of bamboo charcoal produced at high temperature; 05 to 10 parts by weight of a crosslinking agent; 01 to 03 parts by weight of a crosslinking aid; 05 to 15 parts by weight of processing aid; 4 to 6 parts by weight of a foaming agent; 4 to 5 parts by weight of foaming aid; preparing a compound by mixing 3 to 5 parts by weight of a whiteness enhancer and 04 to 06 parts by weight of any one or more components selected from silver (Ag) nanocompound, acid clay, and green tea extract as an antibacterial agent; adjusting the thickness of the compound by rolling the compound and making a sheet; Putting the sheet in a press machine and performing foam molding to obtain a foam; Applying an adhesive to the bottom of the foam and bonding the foam and any one fiber selected from polyester, nylon, viscose rayon, and polyethylene, followed by compression; And it discloses with respect to a method of manufacturing a shoe insole comprising the step of synthesizing the foam and the fiber and then compressing it and then drying it and cutting it into a shoe insole shape.

A shoe generally consists of a sole having a function of providing durability or foot comfort, a midsole attached to the upper part of the sole and having a function of absorbing shock and maintaining the foot stably, and an upper forming the appearance of the shoe while protecting the foot. can

And the midsole may be made primarily of materials such as ethylene vinyl acetate, Phylon, phylite or polyethylene. Functionality using the material of the shoe is possible by adding an appropriate material to the midsole.

The prior art does not disclose a specific structure or material capable of realizing the functionality of a shoe, and in particular does not disclose a material capable of exhibiting antibacterial and deodorizing functions.

The present invention has been devised to solve the above problems, and the object of the present invention is to mix copper powder having deodorizing and sterilizing action in polyethylene resin, but mixing a foaming agent to foam molding to produce copper powder having deodorizing and sterilizing action It is to provide antibacterial shoes containing

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

In order to achieve the above object, the present invention, based on 100 parts by weight of a polyethylene resin, a polyethylene resin and 2 to 6 parts by weight of a copper powder, 2 to 6 parts by weight of activated carbon, 1 to 3 parts by weight of an antibacterial agent, 40 to a foaming agent It is characterized in that it is made of a molding resin blended in 60 parts by weight.

In addition, the molding resin is characterized in that it is blended by further including 2 to 6 parts by weight of ions based on 100 parts by weight of the polyethylene resin.

In addition, the molding resin is characterized in that it further comprises 2 to 4 parts by weight of a crosslinking agent, 0.1 to 0.2 parts by weight of a crosslinking accelerator, 0.5 to 1 parts by weight of an antioxidant, and 0.2 to 0.6 parts by weight of a surfactant.

The antibacterial agent is characterized in that it is an inorganic antibacterial agent.

In addition, the inorganic antibacterial agent is characterized in that silver or zinc is substituted for at least one inorganic material among zeolite, calcium phosphate, zirconium phosphate, and silica gel.

The present invention provides the effect of improving the wearing comfort by minimizing the generation of culture groups that occur when using shoes, including copper powder having excellent deodorizing and sterilizing action.

In addition, it is a shoe manufactured including a foaming agent for foaming copper powder, and even if the cross section of the shoe is cut, copper powder is included to provide the effect of deodorizing and sterilizing the entire foot.

1 is a perspective view showing an antibacterial shoe containing copper powder according to a preferred embodiment of the present invention.
Figure 2 is a flowchart showing a method for manufacturing antibacterial shoes containing copper powder according to a preferred embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

With reference to the accompanying drawings will be described in detail for the implementation of the present invention. Irrespective of the drawings, like reference numbers refer to like elements, and "and/or" includes each and every combination of one or more of the recited items.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

The terminology used herein is for the purpose of describing the embodiments, and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view showing an antibacterial shoe containing copper powder according to a preferred embodiment of the present invention, Figure 2 is a flowchart showing a method for manufacturing an antibacterial shoe containing copper powder according to a preferred embodiment of the present invention.

As shown in Figure 1, the antibacterial shoes containing the copper powder of the present invention, based on 100 parts by weight of the polyethylene resin, 2 to 6 parts by weight of polyethylene resin and copper powder, 2 to 6 parts by weight of activated carbon, and 1 to antibacterial agent 3 parts by weight and 40 to 60 parts by weight of the foaming agent are blended with the molding resin.

And the molding resin is characterized in that it is blended by further including 2 to 6 parts by weight of ions based on 100 parts by weight of the polyethylene resin.

First, the antibacterial shoes containing copper powder of the present invention contain 2 to 6 parts by weight of copper powder based on 100 parts by weight of polyethylene resin. If it is higher than the weight part, it will be difficult to mold it into a desired shape of the shoe.

In this case, the polyethylene resin is a thermoplastic material made from ethylene and is made under high pressure, and has the characteristics of being well maintained and strong in impact.

And 40 to 60 parts by weight of the foaming agent is included based on 100 parts by weight of the polyethylene resin (ie, 2 to 6 parts by weight of the copper powder). When it exceeds 40 parts by weight, a problem occurs in that the dispersion properties of the copper powder are weakened.

Antibacterial shoes containing copper powder according to the present invention as described above can be manufactured to have a plurality of colors in one shoe, and mechanical properties are also excellently improved.

In addition, the copper powder performing the antibacterial action is not formed in a flat plate shape, but is foamed in a state in which copper powder is included in the entire shoe during the manufacturing process, so that deodorization and antibacterial action can be performed on the entire shoe, and the shoe can be cross-sectioned in any direction Even if the incision is made, copper powder is included.

Here, as shown in Figure 2, the antibacterial shoe manufacturing method containing the copper powder consists of a non-foaming material manufacturing step (S100) and a foam manufacturing step (S200).

First, the non-foaming material manufacturing step (S100) is based on 100 parts by weight of the polyethylene resin, with 2 to 6 parts by weight of a polyethylene resin and copper powder, 2 to 6 parts by weight of activated carbon, 1 to 3 parts by weight of an antibacterial agent, and 40 to 40 parts by weight of a foaming agent. An unfoamed body is prepared by injection molding or compression molding of a molding resin blended with 60 parts by weight.

When the non-foamed body is manufactured by the injection molding, the injection mold may be sequentially injected into one foam in consideration of the physical properties and color required for each part of the shoe, or may be injected integrally.

Here, the temperature of the injection part is performed at a temperature of 80 to 100 ℃ enough to melt and flow the kneaded material, and the temperature of the injection mold is performed at a temperature of 160 to 180 ℃ for easy introduction into the mold without foaming the kneaded material do.

In addition, when manufacturing an unfoamed body by the above compression molding, the kneaded material is cut in consideration of the physical properties and color required for each part of the mold, put into the mold, and then the temperature of the mold is heated to the extent that the kneaded material can be melted. . At this time, since there is a possibility of cross-linking and foaming, a foaming agent and a cross-linking agent are used with a high decomposition temperature, and the compression molding is performed at a temperature of 90 to 110° C., which is a temperature at which the kneaded material can be melted.

Here, 2 to 6 parts by weight of the copper powder is included based on 100 parts by weight of the polyethylene resin in the non-foamed body manufacturing step (S100). If the copper powder is lower than 2 parts by weight, the deodorizing component is insufficient, and the copper powder is less than 6 parts by weight If it is high, it will be difficult to mold into the desired shoe shape.

And 40 to 60 parts by weight of the foaming agent is included based on 100 parts by weight of the polyethylene resin (ie, 2 to 6 parts by weight of the copper powder). When it exceeds 40 parts by weight, a problem occurs in that the dispersion properties of the copper powder are weakened.

Next, the molding resin contains 1 to 3 parts by weight of an antibacterial agent based on 100 parts by weight of the polyethylene resin. These antibacterial agents are various compounds used to remove microorganisms or inhibit growth. etc. can be used.

The antibacterial agent may use either an inorganic antibacterial agent or an organic antibacterial agent, and in the case of an inorganic antibacterial agent, a silver antibacterial agent of silver nano or silver salts and zinc oxide are selected and used, or a silver antibacterial agent and zinc oxide are used in 1 part by weight. By mixing and using in a ratio of :1 to 1:10, it can be provided to obtain a synergistic effect of antibacterial action as well as antibacterial action by silver antibacterial agent and zinc oxide itself.

In addition, organic antibacterial agents are mainly added to products requiring antibacterial activity in a short time. Organic antibacterial agents temporarily have higher antibacterial activity than inorganic antibacterial agents, but have a shortcoming that the antibacterial activity is very short.

In addition, since the acute toxicity is high along with the fear of generating resistant bacteria, a problem in human safety has been pointed out, and the use area of the organic antimicrobial agent is being reduced.

On the other hand, inorganic antibacterial agents are mainly products made by substituting silver and zinc, which are metal ions that have antibacterial action, to inorganic substances such as zeolite, calcium phosphate, zirconium phosphate, silica gel, etc. is becoming Although the temporary antibacterial activity of inorganic antibacterial agents is lower than that of organic antibacterial agents, human safety is high, resistant bacteria do not appear, and the antibacterial duration is almost semi-permanent, so the field of use is expanding.

When the antibacterial agent is included in an amount of less than 1 part by weight, the antibacterial and athlete's foot eradication ability is insufficient, and when it exceeds 3 parts by weight, the antibacterial and athlete's foot eradication ability is excellent. There is a problem with this falling.

And it is preferable that the molding resin further comprises 2 to 4 parts by weight of a crosslinking agent, 0.1 to 0.2 parts by weight of a crosslinking accelerator, 0.5 to 1 parts by weight of an antioxidant, and 0.2 to 0.6 parts by weight of a surfactant.

In this case, a crosslinking agent, a crosslinking accelerator, an antiaging agent and a surfactant are included in the molding resin to improve the shrinkage resistance and abrasion resistance.

Next, in the foam molding step (S200), the non-foamed product prepared in the non-foamed product manufacturing step is compression molded at a temperature of 160 to 180° C. for 5 to 20 minutes to prepare a foam.

In the method for manufacturing antibacterial shoes containing copper powder according to the present invention as described above, not only can one shoe be manufactured to have a plurality of colors, but also mechanical properties are excellently improved.

In addition, the copper powder performing the antibacterial action is not formed in a flat plate shape, but is foamed in a state in which copper powder is included in the entire shoe during the manufacturing process, so that deodorization and antibacterial action can be performed on the entire shoe, and the shoe can be cross-sectioned in any direction Even if the incision is made, copper powder is included.

Although embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can practice the present invention in other specific forms without changing its technical spirit or essential features. You can understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

S100: non-foaming material manufacturing step
S200: foam manufacturing step

Claims (7)

Based on 100 parts by weight of the polyethylene resin, 2 to 6 parts by weight of a polyethylene resin, copper powder, 2 to 6 parts by weight of activated carbon, 1 to 3 parts by weight of an antibacterial agent, and 40 to 60 parts by weight of a foaming agent.
The molding resin is formulated to further include 2 to 6 parts by weight of ions based on 100 parts by weight of the polyethylene resin,
The molding resin is copper powder, characterized in that it further comprises 2 to 4 parts by weight of a crosslinking agent, 0.1 to 0.2 parts by weight of a crosslinking accelerator, 0.5 to 1 parts by weight of an antioxidant, and 0.2 to 0.6 parts by weight of a surfactant. Antibacterial footwear.
delete delete The method of claim 1,
The antimicrobial agent,
Antibacterial shoes containing copper powder, characterized in that it is an inorganic antibacterial agent.
5. The method of claim 4,
The inorganic antibacterial agent,
Antibacterial shoes containing copper powder, characterized in that silver or zinc is substituted for at least one inorganic material among zeolite, calcium phosphate, zirconium phosphate and silica gel.
Based on 100 parts by weight of the polyethylene resin, a molding resin in which a polyethylene resin, 2 to 6 parts by weight of copper powder, 2 to 6 parts by weight of activated carbon, 1 to 3 parts by weight of an antibacterial agent, and 40 to 60 parts by weight of a foaming agent are mixed by injection molding or A non-foamed body manufacturing step of producing a non-foamed body by compression molding; and
Antibacterial shoe manufacturing method containing copper powder, characterized in that it comprises;
7. The method of claim 6,
The step of preparing the non-foamed body,
The injection molding is an antibacterial shoe manufacturing method containing copper powder, characterized in that the injection part is performed at a temperature of 80 to 100 ℃.

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