KR102535199B1 - Sole of Shoe Having Magnetic Pigment Pattern And Method for Manufacturing the Same - Google Patents

Abstract

In the present invention, a colored paint is primarily coated on the surface of the midsole and/or outsole constituting the outsole of the shoe to form a base layer of a predetermined color, and then a resin composition mixed with magnetic pigment is sprayed thereon, and at the same time It relates to a shoe sole in which a pattern is realized by arranging magnetic pigments along a predetermined line of force, and an apparatus and method for manufacturing the same.

Description

Sole of Shoe Having Magnetic Pigment Pattern And Method for Manufacturing the Same}

The present invention relates to a shoe sole with a predetermined pattern formed by magnetic pigment and a method for manufacturing the same, and more particularly, to a shoe sole and/or outsole surface of a shoe by first coating a colored paint with a predetermined color as a background. It relates to a shoe outsole in which a pattern is realized by magnetic pigment by spraying a resin composition mixed with magnetic pigment thereon after forming a layer and simultaneously arranging the magnetic pigment along a predetermined line of force, and an apparatus and method for manufacturing the same.

In general, shoes, as shown in FIGS. 1 and 2, an outsole (1) in contact with the ground, a midsole (2) installed on top of the outsole (1), and the midsole (2) It may be composed of an insole (3) installed on the upper part of the foot in contact with the sole, and an upper (4) coupled to the midsole (2) to surround the foot.

The outsole 1 and the midsole 2 are shoe soles, and are members having a cushioning function to absorb shocks applied to the feet or soles during walking. The shoe sole is made of a synthetic resin (for example, polyurethane, EVA, etc.) foam or synthetic resin having excellent elasticity and shock absorption.

The outsole of the shoe is usually made of an opaque material having a predetermined color by adding colored pigment to resin, but recently, the outsole of the shoe is made of a transparent material so that various images can be provided through the outsole of the shoe. A method of forming a pattern or pattern by laminating woven paper having a predetermined pattern on or coating a paint has been proposed (Refer to Korean Utility Model Registration No. 20-0271380).

However, in the method of attaching fabric paper having a predetermined pattern or pattern to the outsole and / or midsole of the shoe or attaching adhesive fabric to integrate it, it is difficult to mold the shape of the fabric paper or adhesive fabric into a shape that matches the sole of the shoe, When a concave-convex pattern is formed on the outsole, it is difficult to form a desired pattern, and there is a limit to the pattern that can be expressed, and the manufacturing process also has a complicated problem.

Republic of Korea Utility Model Registration No. 20-0271380 Korean Utility Model Registration No. 20-0242115 Republic of Korea Utility Model Registration No. 20-0265409 Republic of Korea Patent No. 10-2131567

The present invention is to solve the above conventional problems, and an object of the present invention is a shoe sole in which various patterns or patterns can be expressed on the outer surface of the outsole and / or midsole of a shoe, and a device for manufacturing the shoe sole, and is to provide a way

Another object of the present invention is to provide a shoe outsole and a manufacturing device and method in which patterns or patterns to be expressed can be clearly expressed even when the outsole and/or midsole are made of a transparent material.

A shoe sole according to one aspect of the present invention for achieving the above object may be coated with a resin pattern layer in which magnetic pigments rearranged by magnetic force are arranged in a predetermined pattern in the resin on the outer surface.

In a shoe sole according to another aspect of the present invention, a base layer having a predetermined color is coated on an outer surface, and magnetic pigments rearranged by magnetic force are arranged in a predetermined pattern on the outer surface of the paint base layer. The resin pattern layer may be coated.

The resin pattern layer is coated by spraying a resin composition containing magnetic pigments onto shoe soles in a spray method, and the magnetic pigments in the resin composition are rearranged along magnetic lines of force provided from the lower side of the shoe soles before the resin composition is cured. pattern can be formed.

The resin composition may be a mixture of a water-based resin or an oil-based resin and a magnetic pigment having ferromagnetism.

The shoe sole is an outsole attached to or integrally molded to a midsole and a lower surface of the midsole to contact the ground, and the resin pattern layer may be coated on an outer surface of at least one of the midsole and the outsole.

An apparatus for manufacturing a shoe sole of the present invention as described above includes a spray nozzle for spraying a resin composition containing ferromagnetic magnetic pigments on the outer surface of the shoe sole; and a magnetic pattern mold disposed below the shoe sole and generating magnetic lines of force in a predetermined pattern to rearrange the magnetic pigments in the resin composition sprayed onto the shoe sole by the spray nozzle in a predetermined pattern by magnetic force. can do.

The resin composition may be sprayed by placing a shoe sole in an upside-down state on the magnetic pattern mold.

The resin composition sprayed from the spray nozzle may be a mixture of a water-based resin or an oil-based resin and a magnetic pigment having ferromagnetism.

A non-magnetic pattern engraved in a predetermined pattern is formed on the magnetic pattern mold, and magnetic lines of force may be generated outside the non-magnetic pattern.

A filler made of a non-magnetic resin may be filled inside the non-magnetic pattern of the magnetic pattern mold.

The shoe sole manufacturing apparatus of the present invention may further include a support plate made of a weakly magnetic material or a non-magnetic material laminated on either one of the upper and lower surfaces of the magnetic pattern mold, or on both the upper and lower surfaces.

The magnetic pattern mold may be made of a magnet made of an elastic material in which NS poles are magnetized in a vertical direction.

Before spraying the resin composition on the shoe sole with the spray nozzle, a base layer having a predetermined color may be coated on the outer surface of the shoe sole.

The method for forming a pattern on the outer surface of a shoe sole using the shoe sole manufacturing apparatus according to the present invention as described above,

(S1) laminating a shoe sole on a magnetic pattern mold; and,

(S2) spraying a resin composition containing a ferromagnetic magnetic pigment onto the outer surface of the shoe sole to coat the outer surface of the shoe sole with the resin composition;

In the step (S2), as the magnetic pigments of the resin composition are rearranged along the lines of magnetic force of the magnetic pattern mold, a pattern by the magnetic pigments may be formed on the surface of the sole of the shoe.

Before proceeding with the step (S1), a step of coating a base layer having a predetermined color on the outer surface of the shoe sole may be performed.

In the step (S2), the resin composition may be cured by applying heat to the shoe sole or irradiating ultraviolet rays.

According to the present invention, the resin composition containing the magnetic pigment is sprayed on the outer surface of the shoe sole, and the magnetic pigment is arranged in a predetermined pattern by the magnetic force generated in the magnetic pattern mold so that a desired pattern can be formed on the outer surface of the shoe sole. there is. Therefore, even when the bottom surface of the shoe sole has a complex shape, the pattern using the magnetic pigment can be accurately and quickly formed as desired.

In addition, when it is desired to change the pattern shape to be coated on the surface of the sole of the shoe, the pattern shape can be changed simply by replacing the magnetic pattern mold, so the pattern can be changed very easily.

In addition, when a base layer having a predetermined color is coated before coating the resin pattern layer by spraying a resin composition containing magnetic pigment on the outer surface of the sole of the shoe, the pattern by the magnetic pigment is exposed to the outside due to the color of the base layer. It can be clearly expressed, or the color of the base layer and the color and pattern of the magnetic pigment are combined to create a more diverse and aesthetic image.

In particular, when the entire shoe sole or the outsole of the shoe sole is made of a transparent resin material, the resin pattern layer can implement more distinct and aesthetic patterns and colors through the base layer.

1 is a perspective view showing the configuration of a general shoe.
Figure 2 is an exploded perspective view of the shoe shown in Figure 1;
3 is a perspective view showing a shoe sole according to an embodiment of the present invention.
4 is a longitudinal cross-sectional view of the shoe sole shown in FIG. 3;
5 is a perspective view showing a shoe sole according to another embodiment of the present invention.
6 is a longitudinal sectional view of the shoe sole shown in FIG. 5;
7 is a longitudinal cross-sectional view showing a shoe sole according to another embodiment of the present invention.
8 is a longitudinal sectional view showing an embodiment of a manufacturing apparatus for a shoe sole according to the present invention.
Fig. 9 is an exploded perspective view showing the main configuration of the manufacturing apparatus shown in Fig. 8;

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

Hereinafter, with reference to the accompanying drawings, a shoe sole and a manufacturing apparatus and method thereof will be described in detail according to the following embodiments. Like symbols in the drawings indicate like components.

3 and 4, a shoe sole 10 according to an embodiment of the present invention includes a midsole 11 and an outsole 12 attached to a lower surface of the midsole 11, and the midsole 11 ) and the outsole 12, or the outer surface of both the midsole 11 and the outsole 12 may be coated with a resin pattern layer 20 having a pattern formed by the magnetic pigment 21.

The resin pattern layer 20 is to form a predetermined pattern while the magnetic pigment 21 is arranged by magnetic force in the resin during the manufacturing process.

The midsole 11 and the outsole 12 constituting the shoe sole 10 may be made of an elastic resin material. After the outsole 12 is manufactured as an individual body with the midsole 11, it may be attached to the bottom surface of the midsole 11 with an adhesive or attached using an ultrasonic welding method.

However, as shown in FIGS. 5 and 6 in another embodiment, the midsole and the outsole may be integrally molded to form the sole 10 of the shoe. At this time, the midsole and the outsole are made of the same resin material, so there may be no boundary between the midsole and the outsole. However, otherwise, when the midsole and the outsole are made of different types of resin and integrally molded, a boundary may be formed between the midsole and the outsole. .

The resin pattern layer 20 is applied to the outer surface of either the midsole 11 and the outsole 12 or both of the midsole 11 and the outsole 12 before the outsole 12 is attached to the midsole 11. can be coated. The resin pattern layer 20 is coated by spraying the resin composition containing the magnetic pigment 21 onto the shoe sole 10 in a spray method, and the magnetic pigment 21 in the resin composition is applied to the shoe sole before the resin composition is cured. (10) It is rearranged along the lines of magnetic force provided from the lower side to form a predetermined pattern corresponding to the lines of magnetic force.

The resin composition forming the resin pattern layer 20 has excellent adhesion to the outer surface of the shoe sole 10 made of synthetic resin and has an appropriate viscosity that can be sprayed for spraying. , it may be a mixture of a defoaming agent, a curing agent, and a magnetic pigment. Preferably, the resin composition contains 50 to 65% by weight of a resin, 0.1 to 0.5% by weight of a flow control agent, 0.5 to 1.5% by weight of a wetting and dispersing agent, 0.5 to 1.5% by weight of a defoaming agent, 10 to 20% by weight of a curing agent, and the balance of magnetism. May contain pigments.

In addition, an oil-based resin or a water-based resin may be used as the resin, and an epoxy resin, polyurethane resin, or acrylic resin may be applied.

Epoxy resin is a polymer material having an epoxy bond as a chemical unit of component molecules, and includes bisphenol A type, bisphenol F type, and novolak type. First, bisphenol A type is the most common epoxy resin produced by polymerizing epichlorohydrin and bisphenol A, and has excellent adhesiveness because hydrophilic hydroxyl groups and hydrophobic hydrocarbon groups are regularly arranged in the molecular structure. However, since a plurality of benzene nuclei are included, free rotation is difficult, and there is a problem of leaking phenol component, which is a kind of endocrine disruptor. Accordingly, in the present invention, bisphenol F-type epoxy resin is used, and bisphenol F-type epoxy resin is obtained by replacing CH3 in the molecule of bisphenol A type with hydrogen (H), and has a lower viscosity than bisphenol A type, and is less compatible with other resins. It has excellent compatibility and, in particular, has the advantage of not leaking endocrine disruptors. Bisphenol F-type epoxy resin is preferably contained in an amount of 50 to 65% by weight. If it is less than 50% by weight, the crosslinking density of the coating layer is lowered and physical properties are impaired. It is difficult to secure the thickness, resulting in a problem of deterioration in workability.

As the flow control agent, at least one of fumed silica, urea resin, polyamidewax, and bentonite may be used. It is preferable to add a flow control agent in an amount of 0.1 to 0.5% by weight. If it is less than 0.1% by weight, flowability is high and vertical flow occurs, and if it exceeds 0.5% by weight, physical properties are impaired due to excessive formulation, so it is not preferable. .

The content of the wetting and dispersing agent and the defoaming agent is preferably 0.5 to 1.5% by weight and 0.5 to 1.5% by weight, respectively. If the content of the dispersant is low, the magnetic pigment is not dispersed well, and if the content is excessive, the physical properties of the resin are inhibited. In addition, when the content of the defoaming agent is insufficient, the generation of bubbles is not suppressed, and when the content of the defoaming agent is exceeded, physical properties may be deteriorated.

As the curing agent, one selected from the group consisting of polyamide, aliphatic amine, and alicyclic amine may be used so as to be suitable for bisphenol F-type epoxy resin. The curing agent is preferably contained in an amount of 10 to 20% by weight, and if less than 10% by weight, the adhesive strength is lowered.

The magnetic pigment 21 is made of ferromagnetic powder, and when it is sprayed on the shoe sole 10 during the manufacturing process, the resin pattern is generated by the magnetic force generated in the magnetic pattern mold 110 (see FIG. 9) stacked on the shoe sole 10. As they are rearranged within the layer 20, a predetermined pattern is formed. The magnetic pigment 21 includes a ferromagnetic metal such as iron, manganese, cobalt, nickel, chromium dioxide, etc., which can flow by magnetic force, and is a pigment particle having a predetermined color such as green, blue, or red, and is a known metal pigment. The same magnetic pigment can be used.

The resin pattern layer 20 may be coated alone on the outer surface of the shoe sole 10, but when the shoe sole 10 is made of a transparent material, the pattern made of the magnetic pigment 21 of the resin pattern layer 20 There is a possibility that it will not be clearly revealed externally.

Accordingly, as shown in FIG. 7, after coating the outer surface of the shoe sole 10 with a paint having a predetermined color such as black, silver, yellow, or white, the base layer 30 is coated. By coating the resin pattern layer 20 as described above on the outer surface, the pattern by the magnetic pigment 21 is clearly expressed to the outside, and it may be possible to produce various images combined with the base layer 30.

The base layer 30 may use an oil-based or water-based paint mixed with a metal color giving a metallic feel, a discolored metal color, a general color, or a pigment giving a pearl luster effect. The base layer 30 may be coated using a known painting method such as spray coating on the outer surface of the shoe sole 10 or immersion in a paint method.

8 and 9 show an embodiment of an apparatus for manufacturing a shoe sole 10 of the present invention capable of expressing a predetermined pattern by the resin pattern layer 20.

8 and 9, the shoe sole manufacturing apparatus according to an embodiment of the present invention includes a magnetic pattern mold 110 having a shape corresponding to the shoe sole 10 and shaped to generate magnetic lines of force in a predetermined pattern. , and a spray nozzle 120 for spraying a resin composition in which a magnetic pigment 21 is mixed on the outer surface of the shoe sole 10 stacked on the magnetic pattern mold 110.

In this embodiment, the shoe sole manufacturing device illustrates coating the resin pattern layer 20 on the bottom surface of the outsole 12 of the shoe sole 10, but as described above, the shoe sole manufacturing device The resin pattern layer 20 may be coated on any one of the midsole 11 (see FIG. 3) and the outsole 12 or the entire sole 10 of the shoe. At this time, the outer surface of the shoe sole 10 to be coated with the resin pattern layer 20 may be coated with a base layer 30 of a predetermined color in advance.

The magnetic pattern mold 110 is molded to have a shape corresponding to that of the shoe sole 10 and is laminated with the shoe sole 10 in the process of coating the resin pattern layer 20 . At this time, the shoe sole 10 is placed on the magnetic pattern mold 110 and stacked in an upside-down state so that the outer surface on which the resin pattern layer 20 is formed faces upward.

The magnetic pattern mold 110 rearranges the magnetic pigments 21 in the resin composition into a predetermined pattern by forming magnetic lines of force in a pattern corresponding to a pattern to be formed on the sole 10 of the shoe. The magnetic pattern mold 110 may be made of a magnet having magnetic force, and in order to form lines of magnetic force in a desired pattern, in a pattern opposite to the desired pattern, that is, in a pattern opposite to the pattern to be formed on the shoe sole 10. An engraved non-magnetic pattern 111 may be formed so that magnetic lines of force are formed in an outer region of the non-magnetic pattern 111 . The inside of the non-magnetic pattern 111 engraved in the form of a groove or hole in the magnetic pattern mold 110 may be filled with a filler 112 made of a non-magnetic resin. As the filler 112 filled inside the non-magnetic pattern 111, silicon having excellent heat resistance and stability may be applied, but various heat-resistant resins may be used in addition to it. The filler 112 increases the strength of the magnetic pattern mold 110 inside the non-magnetic pattern 111, and allows the pattern to be maintained constant even if a disconnection occurs in the outer region of the non-magnetic pattern 111.

The magnetic pattern mold 110 may be made of a magnet made of an elastic material such as a rubber magnet, and it is preferable that the NS poles are magnetized in the vertical direction to form a certain pattern on the sole 10 of the shoe. For example, magnetic pattern mold 110 in which the NS pole is magnetized in the vertical direction by alternately stacking and bonding a plurality of magnetic films made of an elastic material having an N pole polarity and an elastic material magnetic film having an S pole polarity alternately up and down. can be produced. When the NS poles are magnetized in the left and right directions in the magnetic pattern mold 110, the magnetic pigments 21 may not be accurately arranged in the intended pattern, and an unintended stripe pattern may be formed on the shoe sole 10. When the NS poles of the magnetic pattern mold 110 are magnetized in the vertical direction, such unintended stripe patterns can be prevented from occurring.

In addition, a support plate 130 made of a weakly magnetic material or a non-magnetic material may be stacked on one of the upper and lower surfaces of the magnetic pattern mold 110 or on both the upper and lower surfaces of the magnetic pattern mold 110 . The support plate 130 has a thin thickness so as not to prevent the magnetic force of the magnetic pattern mold 110 from affecting the magnetic pigment 21, and may be made of a metal with very weak magnetism such as aluminum or a highly heat-resistant plastic. . The support plate 130 is bonded to the magnetic pattern mold 110 and can be molded into a three-dimensional shape corresponding to the shoe sole 10 together with the magnetic pattern mold 110 by a known press device or molding device prior to the coating process. there is. Alternatively, the support plate 130 may be molded separately from the magnetic pattern mold 110 into a shape corresponding to the shoe sole 10 and then bonded to the magnetic pattern mold 110 .

An assembly of the magnetic pattern mold 110 and the support plate 130 as described above may be disposed in the process chamber 150 . A spray nozzle 120 for spraying a resin composition may be installed on one side of the process chamber 150 . The spray nozzle 120 sprays the resin composition at a predetermined spray pressure to coat the surface of the shoe sole 10 with the resin composition. The injection pressure of the spray nozzle 120 is preferably 4 to 10 kg/cm 2 to form a uniform coating layer, and in particular, formation of a uniform coating layer and rearrangement of the magnetic pigment 21 are intended in the range of 7 to 8 kg/cm 2 It can be done exactly as you do. The spray nozzle 120 may be automatically controlled by an automatic device, but may be manually controlled by a person otherwise.

The resin composition sprayed through the spray nozzle 120 is coated on the surface of the shoe sole 10 such as the outsole 12 to form the adhesive resin layer 2, at which time the magnetic pigment contained in the resin composition ( 21) are arranged along the lines of magnetic force generated in the magnetic pattern mold 110 to form patterns corresponding to the lines of magnetic force.

Meanwhile, the resin composition is sprayed from the spray nozzle 120 onto the surface of the shoe sole 10 and the magnetic pigment 21 is rearranged and then rapidly cured. A heater that emits heat into the process chamber 150 Alternatively, an ultraviolet light source emitting ultraviolet light may be additionally installed.

According to the present invention as described above, the resin composition containing the magnetic pigment 21 is sprayed on the surface of the shoe sole 10, and the magnetic pigment 21 is formed in a predetermined pattern by the magnetic force of the magnetic pattern mold 110. Arranged, a predetermined pattern may be formed on the surface of the shoe sole 10 . Therefore, even when the shape of the bottom surface of the shoe sole 10 is complicated, the pattern by the magnetic pigment 21 can be accurately and quickly formed as desired.

In addition, when changing the pattern shape to be coated on the surface of the shoe sole 10, the pattern shape can be changed simply by replacing the magnetic pattern mold 110, so the pattern can be changed very easily.

Since the mechanical strength of the shoe sole 10 coated with the resin pattern layer 20 on which patterns or patterns are formed by such a manufacturing device is also increased due to the resin pattern layer 20 coated on the surface, it is higher than that of conventional shoe soles. Excellent physical properties can also be expected.

In addition, when the base layer 30 having a predetermined color is coated before coating the resin pattern layer 20 by spraying the resin composition on the outer surface of the sole 10 of the shoe, magnetism is caused by the color of the base layer 30. The pattern by the pigment 21 may be clearly expressed externally, or the color of the base layer 30 and the color and pattern of the magnetic pigment 21 may be combined to produce a more diverse and aesthetic image.

In particular, when the entire shoe sole 10 or the outsole 12 of the shoe sole 10 is made of a transparent resin material, more distinct and aesthetic patterns and colors can be implemented through the base layer 30.

In the above, the present invention has been described in detail with reference to the examples, but those skilled in the art to which the present invention belongs will be able to make various substitutions, additions, and modifications without departing from the technical idea described above. Of course, it should be understood that such modified embodiments also belong to the protection scope of the present invention, which is defined by the appended claims below.

10: shoe sole 11: midsole
12: outsole 20: resin pattern layer
21: magnetic pigment 30: base layer
110: magnetic pattern mold 111: non-magnetic pattern
112: filler 120: spray nozzle
130: support plate 150: process chamber

Claims (16)

delete delete delete delete delete A spray nozzle for spraying a resin composition containing ferromagnetic magnetic pigments on the outer surface of the shoe sole;
a magnetic pattern mold stacked on the lower part of the shoe sole and generating magnetic lines of force in a predetermined pattern to rearrange the magnetic pigments in the resin composition sprayed onto the shoe sole by the spray nozzle in a predetermined pattern; and,
a support plate made of a weak magnetic material or a non-magnetic material, which has a form corresponding to the magnetic pattern mold and is laminated and bonded to either one of the upper and lower surfaces of the magnetic pattern mold, or both the upper and lower surfaces;
Including,
The magnetic pattern mold is made of a magnet of elastic material in which the NS poles are magnetized in the vertical direction, and a non-magnetic pattern engraved in a predetermined pattern is formed on the magnetic pattern mold to generate magnetic lines of force to the outer region of the non-magnetic pattern. Device for manufacturing outsoles. The apparatus for manufacturing a shoe sole according to claim 6, wherein the shoe sole is placed upside down on the magnetic pattern mold and the resin composition is sprayed. [Claim 7] The apparatus for manufacturing a shoe sole according to claim 6, wherein the resin composition sprayed from the spray nozzle is a mixture of a magnetic pigment having ferromagnetism with one or more resins selected from the group consisting of epoxy resin, polyurethane resin, and acrylic resin. . delete The apparatus for manufacturing a shoe sole according to claim 6, wherein the inside of the non-magnetic pattern of the magnetic pattern mold is filled with a filler made of a non-magnetic resin. delete delete The apparatus for manufacturing a shoe sole according to claim 6, wherein a base layer having a predetermined color is coated on the outer surface of the shoe sole before spraying the resin composition on the shoe sole with the spray nozzle. A method of forming a pattern on the outer surface of a shoe sole using the shoe sole manufacturing device according to claim 6,
(S1) laminating a shoe sole on a magnetic pattern mold; and,
(S2) spraying a resin composition containing a ferromagnetic magnetic pigment onto the outer surface of the shoe sole to coat the outer surface of the shoe sole with the resin composition;
In the step (S2), the magnetic pigment of the resin composition is rearranged along the magnetic line of force of the magnetic pattern mold to form a pattern by the magnetic pigment on the surface of the shoe sole. 15. The method of claim 14, wherein a step of coating a base layer having a predetermined color on the outer surface of the shoe sole is performed before the step (S1) is performed. 15. The method for manufacturing a shoe sole according to claim 14, wherein the resin composition is cured by applying heat or irradiating ultraviolet rays to the shoe sole when the step (S2) is performed.

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