KR20160078948A - Cushion for Being Inserted in Mid-sole of Shoe with Charcoal And Method for Producing the Same - Google Patents

Abstract

The present invention relates to a shoe cushion that has anti-bacterial and anion release functions and a method for producing the same and, more particularly, to a shoe cushion that is manufactured by the use of white charcoal and a polyurethane element and has excellent anti-bacterial and anion release functions and a method for producing the same. The cushion manufacturing method includes: a step of preparing a sun tree or pine essential oil-based diluted solution; a step of absorbing an anti-bacterial and anion release element by dipping at least one selected from the group consisting of tourmaline, white charcoal powder, elvan, silver, jade, and zeolite in the sun tree or pine essential oil-based diluted solution; a step of drying the anti-bacterial and anion release element-absorbed material; a step of mixing molten polyurethane with the naturally dried anti-bacterial and anion release material; and a step of injecting the mixture into a prepared mold.

Description

TECHNICAL FIELD [0001] The present invention relates to a shoe cushion containing a carbon black and a method for manufacturing the shoe cushion,

The present invention relates to a shoe cushion containing a carbon black and a method for producing the same, and more particularly, to a shoe cushion having an antibacterial and anion releasing function which is produced by using a carbon black and a polyurethane as a raw material.

On the bottom of the shoe, a cushion or insole is placed on the bottom of the shoe to distribute the load of the foot when the shoe is worn. Most shoes have a cushion on the inside of the shoe to provide a comfortable fit.

Generally, a shoe cushion is designed so that a user wears shoes and absorbs or buffs impacts and pressures transmitted to the sole by the weight of the user when walking, absorbs perspiration, and is ventilated. A typical shoe cushion is made of an elastic material such as rubber or resin. On the other hand, when a shoe cushion is worn for a long period of time, various bacteria are likely to breed due to sweat swollen from the foot, and an unpleasant smell is generated. Therefore, it is advantageous for the shoe cushion to have antibacterial or deodorizing function, but due to the limitation of the cushion material itself, such function should be added separately. In addition, the conventional shoe cushion has the following problems. First, since it is manufactured for a long-term use purpose, the initial effect of the shoe cushion can not be continuously maintained. Second, in order to improve the above problems, to maintain the initial wearing effect of the shoe cushion, There is a problem in that the replacement and replacement cycle of the battery is shortened. In order to solve the above problems, various kinds of materials and functional materials of shoe cushions are known.

Prior art relating to shoe cushion is disclosed in Korean Patent Publication No. 2001-0063232 " Shoe insole containing biotite and method of making same. &Quot; In the prior art, a mixing process for making an EVA sponge raw material containing biotite by mixing 70 to 80% of a resin mixture containing EVA and PE as main components and 20 to 30% of biotite fine particles together with a small amount of a crosslinking agent by heating and dissolving; A sheet forming step of making the EVA sponge raw material into a sheet having a thickness of 3 to 7 mm, cooling and solidifying the EVA sponge raw material; A laminating step of laminating a reinforcing sheet on the bottom of the EVA sponge sheet and pressing the laminating sheet to form a laminated sheet composed of an EVA sponge sheet and a reinforcing sheet; A heating step of heating the laminated sheet to a high temperature of 150 ° C or higher; A molding step of pressing the laminated sheet having a high temperature through the heating step with a molding press to form an insole having a plurality of protrusions on the upper surface of the EVA sponge sheet; And a cutting step of cutting the laminated sheet formed to have a plurality of protrusions through the molding step into an insole form.

Another prior art related to shoe cushion is disclosed in Korean Patent Publication No. 2006-0009059 entitled " Composition with deodorizing and health promoting effect, and shoe insole using this composition ". The prior art provides a composition having a deodorizing and health promoting effect, and a composition layer is formed by pushing the netting on a separately prepared base plate using the above composition by a twisting method, wherein about 5 mesh pieces are repeatedly used The composition layer is formed to have a thickness of about 3 mm and then dried and fixed to produce a composition plate, and the composition plate is cut through a molding frame manufactured to fit the size and shape of the shoe insole. Shoe insole having a deodorizing and health promoting effect. It is advantageous that the cushioning function or the antibacterial and deodorizing function is effected in a simple manner effectively. The cushioning function is possible by the material itself, and the antibacterial and deodorizing function is possible by the addition of the functional material.

The present invention is to propose a shoe cushion by adding a new material and a functional material not disclosed in the prior art, and has the following purpose.

Prior Art 1: Korean Patent Laid-Open No. 2001-0063232 (Kim, Dukki, published on July 9, 2001) Prior Art 2: Korean Patent Publication No. 2006-0009059 (Kim Dongmin, published on Jan. 27, 2006)

An object of the present invention is to provide a shoe cushion comprising a polybutene component and a polyurethane component having antimicrobial and anion releasing functions, and a process for producing the same.

According to a preferred embodiment of the present invention, the shoe cushion comprises 90 to 99 wt% polyurethane component; And 1 to 10 wt.% Of at least one component selected from the group consisting of tourmaline, white coal powder, elvan, silver and zeolite containing an opacified wood or pine essential oil component.

According to another preferred embodiment of the present invention, the polyurethane of the shoe cushion is a flexible polyurethane foam having a density of 30 to 60 kg / m 2 and a rebound resilience of 60 to 80%.

According to another preferred embodiment of the present invention, a method for manufacturing a shoe cushion comprises the steps of: preparing a dilute solution of a white or pine essential oil; Immersing at least one member selected from the group consisting of tourmaline, white carbon powder, quartz, silver, jade and zeolite in a dilute solution of plain wood or pine essential oil to absorb the antibacterial and anion emitting components; Drying the absorbed material of the antibacterial and anion emitting component; Mixing the naturally dried antimicrobial and anion emitting material with the molten polyurethane; And injecting the mixture into a mold prepared in advance.

The shoe cushion according to the present invention has an advantage that the wear comfort is improved due to the elastic performance of the shoe by including a polyurethane component. In addition, the footwear according to the present invention has an advantage of improving foot health and human health due to blood circulation, removal of foot odor, and absorption of toxic substances due to the content of a carbon black. In addition, the shoe cushion according to the present invention has an advantage that excellent antimicrobial properties are exhibited due to the essential oil component of sunflower oil.

FIG. 1 schematically shows an embodiment of a process for manufacturing a shoe cushion according to the present invention.
FIG. 2A illustrates an embodiment of a shoe cushion according to the present invention and an example of a position where the shoe cushion is attached.
Fig. 2b shows an embodiment of cushions 10, 10a of various shapes according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

FIG. 1 schematically shows an embodiment of a process for manufacturing a shoe cushion according to the present invention.

Referring to FIG. 1, a shoe cushion attached to a shoe midsole or disposed between a shoe sole and a midsole comprises the steps of: (S11) preparing a dilute solution of a white or pine essential oil; (S12) of immersing at least one member selected from the group consisting of tourmaline, carbon black powder, elvan, silver and zeolite in a dilute solution of cottonwood or pine essential oil to absorb antibacterial and anion emitting components; Drying the absorbed material of the antibacterial and anion emitting component (S13); Mixing the naturally dried antimicrobial and anion emitting material with the molten polyurethane (S14); And a step (S15) of putting the mixture into a mold prepared in advance.

The cushion may be attached to the top of the sole of the shoe or may be attached to the bottom of the midsole and may be supplementarily used to impart an elastic or cushioning function to a particular portion, such as the front or rear portion. The shoe cushion according to the present invention is distinguished from the sole or the middle of the shoe and is attached to the shoe in an auxiliary manner. However, the attachment position is not particularly limited, but may be attached to the soles or the middle of a shoe.

The cushion may be made of polyurethane and various functional materials may be added as needed. The functional material may be a cottonwood or pine essential oil, including phytoncide components, silver, tourmaline, white coal powder, elvan or zeolite. In particular, Waxy or Pine essential oil has antimicrobial and deodorizing effect and can be included with other functional materials.

Prunella or pine essential oil may be diluted in a solution such as distilled water. For example, an essential oil extracted from an unglazed wood or a pine tree can be diluted with a weight ratio of essential oil: distilled water = 1: 10 to 200 (S11). When diluted with cottonwood or pine essential oil, it can be absorbed by other functional materials.

The functional material may be at least one selected from the group consisting of tourmaline, white coal powder, elvan, jade, silver or zeolite (S12). In order to add such a functional material, each material can be made into a powder form. And the material to be added can be immersed in essential oil dilution solution. The powder may have, for example, an average diameter of 5 to 200 mu m, but is not limited thereto. Making the functional material into powder form is to increase the surface area.

Each component will be described below.

Carbon refers to natural wood made by pyrolysis of natural wood at high temperature without additive, and it is made in the form of a solid carbon, which is a solid carbon before it is ashes. The carbon black can be made in the form of fine powder. For example, the flue gas may be heated to a temperature of 600 to 800 ° C. by pyrolyzing the log at a temperature of 600 to 800 ° C. by providing the kiln with hot air to the kiln, And secondarily pyrolyzing at a temperature of 1100 ° C. The harmful substances contained in the logs can be removed through the first pyrolysis process and the second pyrolysis process. The carbon black produced at the high temperature may be injected into a pulverizer to produce a powder of the carbon black. For example, the average particle diameter of the carbon black powder may have a size of 100 to 500 mesh, but the present invention is not limited thereto.

The tourmaline component can be added for effects such as, for example, promotion of blood circulation or cell activation. Jade or silver may be used, for example, to induce cellular activity and maintain the body temperature of the foot.

When the functional material is made into a powder form, it can be immersed in the diluting solution for 3 to 40 hours. Thereafter, the distilled water component is dried while being heated to a temperature of 60 to 90 ° C, and can be naturally dried or hot air dried again for 2 to 20 hours (S13). Natural drying or hot air drying may be accomplished by any method known in the art for the purpose of ensuring that the unfinished wood or pine essential oil is fully absorbed into the functional material.

When the drying for the functional material is completed, the functional material can be made into a powder form again, for example, but it is not limited to a powder form having a size of 1 to 100 mu m. Functional materials made in powder form may be blended into polyurethane (S14).

The polyurethane may be a rigid polyurethane or a flexible polyurethane and may be a flexible polyurethane foam depending on the footwear used, for example a soft, open cell structure having a number of hydroxyl groups (OH) of 26 to 36 It can be a polyurethane foam. Also, the polyurethane foam may have a density of 30 to 60 kg / m 2 and a rebound resilience of 60 to 80%, but is not limited thereto. Alternatively, the polyurethane foam may be a semi-rigid polyurethane foam.

When the polyurethane material is prepared, the functional material may be added in an amount of 1 to 10 wt% with respect to 90 to 99 wt% of the polyurethane material (S14). The cushion according to the present invention can be formed by molding, injection, extrusion or press molding (S15). The thus produced cushion according to the present invention can have excellent elasticity, durability and antimicrobial or anion releasing function.

An embodiment of the shoe cushion according to the present invention manufactured as described above will be described below.

FIG. 2A illustrates an embodiment of a shoe cushion according to the present invention and an example of a position where the shoe cushion is attached.

2A shows an embodiment of a cushion according to the invention, and FIG. 2B shows various positions to which a cushion can be attached.

2a, the cushion 10 may be of a generally smooth curvilinear shape, the upper surface 11 having a curvilinear finish and the lower surface 12 having a flat, . One side 111a may have a large curvature radius or a curved shape close to a straight line on the other side 111b and the center of the front side 112 may be deflected. And the rear surface 113 may have a shape having a uniform curvature radius as a whole.

The cushion 10 may have a thickness of, for example, 0.5 to 30 mm, but is not limited thereto.

Referring to FIG. 2A, the lower portion of the shoe may be a bottom surface or a sole 100 or a middle 102, and the functional layer 101 may be inserted if necessary.

The cushion 10 according to the present invention may be directly attached to the sole 100 or attached to the functional layer 101 or the middle 102. [ For example, the cushion 10 may be attached to the front pressure portion A1 or the rear pressure portion B of the functional layer 101 or the middle 102. On the other hand, the cushion 10 may have a protruding portion and may be attached to the middle 102 such that the protruding portion is located in the protruding region A2. If the cushion 10 is attached to the middle 102, a finishing layer of cloth or other porous film material may be formed on the upper surface of the middle 102.

Fig. 2b shows an embodiment of cushions 10, 10a of various shapes according to the invention.

2B, the cushion 10 attached to the front pressure portion A1 may have a protruding portion 13 formed to be inserted into the protruding region A2. Specifically, the protruding area A2 is made into an inlet shape and the protruding part 13 is inserted into the protruding area A2 so that the cushion can be attached to the middle 102 or the sole 100. [ The thickness of the protruding portion 13 may be similar to the thickness of the middle 102 and the outer region of the protruding portion 13 may be made sufficiently small.

Although the thickness of the protruding portion 13 in the form shown in the front view of Fig. 2B is shown as being smaller than the thickness of the remaining portion, this is an exemplary one, and the thickness of the protruding portion 13 or the remaining region is varied Can be.

Referring to Fig. 2B (b), the cushion 10a may have a structure attached to the rear pressure portion B. The thickness may become thicker from the front surface 112 toward the rear surface 113 and the side surfaces 111a and 111b may be finished in a curved surface shape as shown in FIG. 2B (B).

2B shows a cushion 10a which can be attached to, for example, a rear pressure portion B of a ladies' shoe, and FIG. 2B shows a cushion 10a attached to a front pressure portion A1 of the shoe. Lt; RTI ID = 0.0 > 10 < / RTI >

A shoe cushion having various shapes or structures can be made and the present invention is not limited to the embodiments shown.

The shoe cushion containing the carbon black according to the present invention can remove various odors and contaminants generated in the shoe by adding the carbon black having the negative ion releasing function and the antibacterial function and by inhibiting the generation of various kinds of bacteria or fungi, The advantage of being able to maintain clean and pleasant effect at all times. The shoe insole containing the flame-retardant material keeps the proper humidity and deodorization action according to each season, eliminating foot odor as well as preventing athlete's foot and eczema through antimicrobial action, thereby maintaining a comfortable shoe condition at all times.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10, 10a: Cushion 11: Upper surface
12: lower surface 13: projecting portion
100: Outsole 101: Functional layer
102: midsole 111a, 111b: side surface
112: Front 113: Rear

Claims (1)

A method of manufacturing a shoe cushion,
Preparing a dilute solution of a white or pine essential oil;
Absorbing antimicrobial and anion releasing components by immersing the functional material made of tourmaline, white coal, elvan, silver, jade and zeolite into powder form and immersing the functional material in a dilute solution of the white clover or pine essential oil;
Drying the functional material in which the antibacterial and anion releasing components are absorbed and re-powdering the functional material;
Mixing the absorbed material in powder form into a flexible polyurethane foam having an open cell structure and having a density of 30 to 60 kg / m 2 and a rebound resilience of 60 to 80%; And
Injecting the mixed material into a mold prepared in advance, and melt-injecting the mixed material,
Wherein the flexible polyurethane foam is 90 to 99 wt% of the total weight of the soft polyurethane foam, and the functional material absorbed by the antibacterial and anion release ingredients is 1 to 10 wt%.

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