JP3239192B2 - Manufacturing method of special shape emboss - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Object of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip embossing, such as provided on a shoe sole of athletic shoes, a method of manufacturing the same, and a shoe having the embossing.

[0002]

BACKGROUND OF THE INVENTION In recent track and field sports, winning or losing is often determined with a difference of 1/100 second, and athletic shoes are required to have a certain level of functionality and high quality. In particular, various types of embossed soles have been developed because the non-slip embossing on the sole of the tread directly relates to the gripping force of the shoe.
However, the shape of the embossed sole of the athletic shoes currently on the market has only changed the arrangement and connection of the embosses, and has changed the shape of the embossed contact surface that is most related to the ground grip force At present, it is hardly commercialized due to the difficulty of molding.

[0003]

[Technical matters attempted to be developed] The present invention has been made in view of such a background, and provides an embossing excellent in ground gripping force and a shoe having the embossment on a shoe sole, and the embossing is extremely improved. This is an attempt to develop a manufacturing method that can be easily manufactured.

[0004]

Configuration of the Invention

Means for Achieving the Object: That is, a method for manufacturing a specially-shaped embossment according to the first invention of the present application includes a stencil having magnetism,
By holding the base sheet with the magnet plate,
After adhering the base sheet to one surface of the stencil plate and pouring the embossed liquid material from the other surface of the stencil into the hole of the stencil, the squeegee treatment is performed on the liquid surface of the embossed liquid material in the hole on the other surface side of the stencil. The method is characterized in that the embossed liquid raw material is cured, and the plate is released from the plate after the concave state. The above-mentioned invention achieves the above object.

[0005]

According to the specially-shaped emboss formed by the present invention, the ground surface of the emboss is concave, and the peripheral end of the ground surface is formed at an acute angle with respect to the side surface of the emboss. Greater grasping power.

Further, the method for producing a specially-shaped embossment of the present invention provides a method of manufacturing a base sheet by using a magnetic stencil and a magnet plate.
By sandwiching the nonwoven fabric on one surface of the stencil, and after pouring the embossed liquid raw material from the other surface of the stencil,
Since the other side of the stencil was subjected to squeegee processing, and then the embossed liquid material was hardened and depressurized, the surface tension, contact angle between the embossed liquid material and the hole of the stencil and the tip of the squeegee tool during squeegee processing, Due to the wetting, etc., the liquid surface of the embossed liquid raw material is depressed from the surface of the stencil to a concave state, and the embossed grounding surface is formed in a concave state by curing and depressurizing as it is. It is formed at an acute angle to it. At this time, the close contact between the base sheet and the stencil
Can prevent seepage of UV curable resin
Therefore, embossing is preferably performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in FIG. Incidentally, for convenience of description, the drawings drawn so as to upwardly convex emboss, tailored to also the following description. One emboss 2 of the sole of the athletic shoe 1 has, for example, a substantially cylindrical shape as shown in an enlarged view in FIG. 1, and a grounding surface 3 is formed on the upper surface of the emboss 2 in the figure. 4 is formed.
The grounding surface 3 is formed as a whole with a somewhat gentle depression, and the peripheral end 5 of the grounding surface 3 is formed at an acute angle with respect to the side surface 4. Such a structure is a characteristic configuration of the present invention, and can be applied to other various embossments 2.

For example, the one shown in FIG. 2A has a side surface 4 formed in a tapered shape, and the one shown in FIG. 2B has an oval cross section, and The above-mentioned characteristic configuration is applied to the emboss. Further, such a configuration can be applied to the continuous embossing 2. For example, as shown in FIG. 2C, the corrugated embossed ground surface 3 is formed in a concave shape, or as shown in FIG. 2D, the ring-shaped embossed ground surface 3 is formed in a concave shape. May be formed.

Next, a method of manufacturing the special shape emboss as described above will be described. Since this manufacturing method uses a stencil unlike the conventional embossing manufacturing method, first, the preparation of the stencil will be described, and then the embossing forming process will be described. By the way, embossing by applying a stencil is also one of the features of the present invention, whereby the method using a conventional intaglio-shaped mold, as well as a cylindrical emboss, could not be dealt with at all. FIG. 2 (c) above
As shown in FIG. 4D, it is possible to form a corrugated or embossed ring-shaped grounding surface 3 having a concave shape.

(1) Preparation of a stencil a) Method by sandblasting First, a desired embossed design is prepared, and this embossed design is used as a transfer object A as shown in FIG. Create In this method, since a camera is used, the emboss design can be freely reduced or enlarged. By the way, such a positive film can, of course, be applied to other films, but in order to clarify the boundary between the photosensitive portion and the non-photosensitive portion at the time of subsequent exposure, in the present embodiment, a thin and hard tone is used. Uses a squirrel film that provides contrast.

Next, as shown in FIG. 4A, the squirrel film 10 is brought into close contact with the photocurable resin film 12 and exposed from the squirrel film 10 side to correspond to portions other than the embossed design of the squirrel film 10. The part of the photocurable resin film 12 is cured.

The photo-curable resin film 12 serves as a sandblast protection mask. For example, a photo-curable resin layer is sandwiched between transparent surfaces with a transparent film so that it can be peeled off from both sides. It is convenient to use a transparent film or a transparent film on the side of the surface in close contact with the hard plate, which will be described later. The photocurable resin film 12 is required to have durability against sand blast as described later. An example of the photocurable resin film 12 that can be selected from this viewpoint is a urethane-based photosensitive film, which can withstand sandblasting even with a thickness of 100 μm. Of course, even if various resins are used, if the accuracy is not a problem, the thickness can be increased to increase the durability against sand blasting. Can also be selected.

The photocurable resin may be, for example, a photosensitive resin having a styrylpyridinium group as a photosensitive group introduced into a polyvinyl acetate / polyvinyl alcohol emulsion, a natural water-soluble polymer such as carrageenan or gelatin, carboxymethylcellulose, or alginic acid. Ammonium, starch, semisynthetic water-soluble polymers such as methylaminopropyl ether, and photopolymerization initiators such as benzophenone, thioxanthone, and benzoin ether; and photopolymerization type composed of monomers, dichromates, diazo resins, and bisazides There is a mixed type comprising a photo-crosslinking agent such as a compound.

The "photo-curing" of a photo-curing resin means that when irradiated with high-energy electromagnetic waves such as visible light, ultraviolet rays, X-rays, and electron beams, the energy is absorbed to cause crosslinking, curing, and insolubilization. Similarly, the term “light” is a general term for these high-energy electromagnetic waves.

Next, of the photocurable resin film 12, a non-photosensitive portion corresponding to the embossed design of the lith film 10 is washed away in a carbonated water using a brush B or the like as shown in FIG. After that, the mask 13 is formed by exposing again to increase the hardness of the photosensitive portion. Then, as shown in FIG. 4C, the mask 13 is brought into close contact with the surface of a hard plate 14 which is the original plate of the plate.
Sand blasting is applied to the three side surfaces. The mask 13
In order for the hard plate 14 to be in close contact with the hard plate 14, an adhesive may be applied to the hard plate 14 in advance.

Here, the hard plate 14 is made of a hard material and is suitable for sand blasting. For example, glass, ceramics, stone, artificial marble, and the like, have some difficulty in processing. However, it also includes metals and the like. It should be noted that even if the glass plate is broken even among the hard plates 14, it is inexpensive and easily obtainable, and sandblasting is easy to be performed. Workability is good because it can be processed.

The abrasive for blasting may be one usually used for etching gravestones, nameplates and the like. For example, natural silicon, garnet, silicon carbide carbon, random, artificial corundum and the like can be applied. Of course, the selection of these abrasives is appropriately made in consideration of the material of the hard plate 14, workability, and the like.

Next, a description will be given of an etching process by sandblasting. Using a hard plate 14 having the same thickness as the expected length of the emboss, a hole 18 is formed by etching with a polishing material as shown in FIG.
In this case, as shown in FIG. 6, in the ordinary sand blast, the hole is easily tapered, so that the tapered emboss can be formed by using this, and this taper can be used as a draft. it can. The present invention can be further developed to form an emboss having a so-called gentle taper surface, such as a toe portion of a shoe sole, which rises with a gentle inclination. A hole having a vertical surface without taper can also be formed by sandblasting at a distance and blasting over time. Since the etched surface has a satin finish, it is preferable to apply a release agent before using the plate in order to improve the deprinting property.

[0019] The hole portion 18 is formed by etching as first range a ₁ of FIG. 7 (a), then if Hodokose the etched partway in the range a ₂ that partially overlaps this range a _1, thus An embossed stepped portion 2 as shown in FIG. 7B can be formed by using a stencil.

(B) Method using a master mold As shown in FIG. 8 (a), a master mold 25 having a pattern similar to the embossed pattern of the shoe sole is prepared, and a magnetic metal 26 such as iron or nickel is sprayed on the master mold 25. I do. And this master mold 25
The mold resin 28 is poured between the convex portions 27 and thermally cured, and the surface is shaved as shown in FIG. 8B to remove the magnetic metal 26 attached to the top surface of the convex portion 27 of the master mold 25. leave. Finally, by removing the master mold 25, FIG.
A stencil 19 having a hole 18 as shown in FIG. In addition, in such a stencil 19, a magnetic metal 26 is provided on the lower surface other than the hole 18, and this is for improving the adhesion between the base sheet and the stencil 19 by magnetic force as described later. However, if the adhesion between the two can be improved by another method, the presence of the magnetic metal 26 is not necessarily required.

As a similar technique for imparting magnetism to the stencil 19 in such a method, a method of supporting magnetic powder on the stencil 19 may be employed. As a specific method, when the mold resin 28 is in a liquid state, a magnetic powder is mixed into the liquid, and the mixture is poured into the master mold 25 to form a stencil 19.
And a method of attaching a magnetic powder later to a stencil having no magnetism. By the way, the magnetic powder can be easily attached by a method in which a magnetic substance is formed into fine droplets by a gas flame, an arc flame, plasma or the like and sprayed onto a stencil. In this method, since the magnetic powder may adhere to the holes of the stencil and it may be difficult to remove the plate, it is necessary to provide a mask or the like to prevent the magnetic substance from adhering to the holes. .

(C) Method using photocurable resin film First, as shown in FIG. 9A, a photocurable resin film 30 is formed by drying and molding a photocurable resin into a film having a thickness of 2 mm. This film is the same as that described in the above sandblasting method, but a thicker film is applied according to the height of the emboss to be formed. As shown in FIG. 9A, the photocurable resin film 30 before the exposure is wetted on the lower surface with water and then adhered to a substrate 31 such as a glass or aluminum plate.
Dry at about 70 ° C. for 5 to 10 minutes to integrate them.
Thereafter, as shown in FIGS. 9B and 9C, a mask 32 having an embossed pattern on a shoe sole is adhered to the photocurable resin film 30 before exposure, and for example, an ultrahigh pressure mercury lamp broad hand (365 nm, 5. After exposure at 7 mW / cm ² ) for 10 to 15 minutes, the mask 32 is removed, and the unexposed portion 33 is removed in a warm water shower using a brush or the like.

Next, the photocurable resin film 30 from which the unexposed portions 33 have been removed is dried at about 70 ° C. for about 30 minutes, the film is peeled off from the substrate 31, and the magnetic metal 26 is thermally sprayed as shown in FIG. As shown in c), a stencil 19 having the hole 18 formed in the unexposed portion 33 is prepared. When the stencil 19 is magnetized, magnetic powder may be applied as described above.
In addition to the film, the photo-curable resin may be used by applying and drying a liquid material. In addition, since the photocuring properties of the photocurable resin greatly depend on its transparency, the addition amount of the magnetic powder is adjusted in consideration of the magnetic attraction force within the range allowed by the transparency, and the electron energy of a higher energy level is adjusted. It must be cured with wire.

Since the water-developable photocurable resin is water-soluble before curing and has high hydrophilicity even after curing, embossing of a shoe sole (specifically, urethane elastomer), which is likely to use an oil-based material, In consideration of the releasability of the stencil 19 from the hole 18 of the stencil 19 having a thickness of several mm, it can be said that the stencil 19 is a suitable type. The water in the water development may be neutral or alkaline or acidic.

D) Other methods In addition to the above methods, a stencil may be formed by forming a hole in a metal plate, a resin plate or the like by etching, wire cutting, laser, punching, pressing or the like. Nowadays, according to the etching method, it is possible to form a stepped hole in a metal plate at a relatively low cost.

(2) Setting the stencil and the base sheet Next, the stencil 19 is brought into close contact with the base sheet 34 as shown in FIG. If the adhesion between the base sheet 34 and the stencil sheet 19 is poor, the liquid oozes out and comes out as a pattern around the embossment.
A cushion material is laid under the stencil and pressed down from above the stencil to ensure close contact.

As a method of bringing the base sheet 34 and the stencil sheet 19 into close contact with each other, a method of using a vacuum or a method of sticking may be considered. However, according to the vacuum, the elastomer is sucked only from the unmasked hole, and the elastomer is removed in this state. When poured, it is sucked into the nonwoven fabric. Therefore, it is difficult to uniformly suction the entire plate. In the method using adhesion, it is necessary to apply the adhesive again each time. On the other hand, for example, in the method using the magnetic force,
The disconnection of the suction action can be reliably controlled, and the suction action can be exerted almost uniformly on the entire surface.
The heating can be performed while maintaining the close contact between the stencil and the stencil 19.

When the stencil sheet is not provided with a magnetic material, it is preferable that the stencil sheet 19 is not provided with a magnetic material, and that the stencil sheet 19 be closely adhered to the stencil sheet 19 by pressing several places on the stencil sheet from above. When the body is provided, a strong permanent magnet plate 35 is prepared as shown in FIG. 11, a base sheet 34 is laid thereon, and the stencil 19 is further placed thereon, whereby the magnetic metal of the stencil 19 is provided. The base sheet 34 comes into close contact with the stencil 19 by the action of the magnetic sheet 26 being attracted to the permanent magnet plate 35 by magnetic force.

In this case, an electromagnet may be used instead of the permanent magnet plate 35, and the stencil 19 may be entirely made of a magnetic material such as iron, or a permanent magnet or another magnetic material may be embedded in the stencil 19. A configuration can also be adopted. Also, it is convenient if the magnet plate takes a form such as a permanent magnetic chuck or an electromagnetic chuck which is widely used as a workpiece holding device of a surface grinding machine. Is good.

The base sheet 34 is made of, for example, synthetic resin,
Conventionally used materials such as rubber and nonwoven fabric can be applied. When a nonwoven fabric is applied as the base sheet 34,
Either thermoplastic fiber or thermosetting fiber may be used, and as an example, Esseine (registered trademark) manufactured by Toray Industries, Inc., which is a backskin-like artificial leather, can be used. By the way, this Exeine (registered trademark)
Since there are various colors such as yellow and orange, a design based on color contrast can be applied to the shoe sole by making the emboss black.

In addition to the above, a normal nonwoven fabric sheet having tear strength, tensile strength and abrasion resistance, a thick film sheet, etc. can be applied, and a material having an adhesive property and a waterproof property by a resin film coat can be used. It may be something that can be obtained. As a normal nonwoven fabric sheet, a self-adhesive elastic long fiber such as urethane is preferable. In this case, for example, if a thick nonwoven fabric sheet having a thickness of about 1 cm is applied, a shoe sole having excellent cushioning properties can be provided. When a film sheet is used as the base sheet 34, it is difficult to express the contrast of the material in terms of design as compared with artificial leather or nonwoven fabric, but the design can be enhanced by color contrast.

(3) Pouring of embossed liquid raw material When the stencil 19 is set in close contact with the base sheet 34,
As shown in FIG. 12A, a polyurethane elastomer 36 is poured into the hole 18 of the stencil 19 as an example of an embossed liquid material. The polyurethane elastomer 36
As shown in FIG. 12 (a), the method of pouring is to mix the two components of the raw material in a container and degas and pour the mixture. As in a '), the two liquids of the raw material may be sprayed while being mixed at the tip of the nozzle.

The polyurethane elastomer 36 comprises a mixture of a prepolymer and a polyisocyanate,
This is cured by heating. In this example, Nipporan (registered trademark) of Nippon Polyurethane Industry Co., Ltd., which is a prepolymer, and Pandex (registered trademark) of Dai Nippon Ink Co., Ltd., which is a polyisocyanate, are used. Used as a mixture. The mixed solution of the prepolymer and the polyisocyanate is subjected to vacuum defoaming and then poured into the hole 18. Suitable polyurethane elastomers supplied by spraying from a nozzle include solvent-free immediate-curing urethane resins manufactured by Nippon Synthetic Chemical Industry Co., Ltd.

The two-part cast thermosetting polyurethane, such as Nipporan or Pandex, which requires a relatively long time to cure, has a viscosity that decreases temporarily after heating and then increases as shown in FIG. Therefore, it is necessary to prevent outflow from the stencil and bleeding into the nonwoven fabric at the viscosity reduction point (point P in the figure). Therefore, it is preferable to add a thickener to these raw materials.

A specific example of the thickener is AEROSIL (registered trademark) manufactured and sold by Nippon Aerosil Co., Ltd. This is the highest purity silica (S
iO ₂ 99.8%), which is a harmless substance composed of ultrafine particles of 7 μm to 50 μm, having a high surface area and a high dispersibility. This AEROSIL (registered trademark) can be used as a thickener because it can give the rheological properties required for processing liquid materials such as polyesters and epoxy resins with a small amount of addition by the action of hydrogen crosslinking of silanol groups on the surface. It has the function of

By adding the thickener and bringing the stencil 19 into close contact with the base sheet 34 by magnetic force, the polyurethane elastomer 36 is further prevented from seeping between the stencil 19 and the base sheet 34. The boundary between the color of the embossed material and the color of the nonwoven fabric is clear, the contrast becomes clear, and the design effect of the shoe sole can be enhanced.

As another means for changing the color of the embossed portion from the color of the other nonwoven fabric portion, the nonwoven fabric portion to be embossed is printed in advance with a contrasting color, and the embossed portion is formed using a transparent resin. You may make it. In this case, on the embossed pattern printed with the ink of the contrasting color, a stencil having a hole formed at a position corresponding to the embossed pattern is brought into close contact, and after pouring a transparent polyurethane resin into the hole, heat curing is performed. The stencil may be released.

A photo-curing resin can be used as another embossing liquid material. The photocurable resin used here has the same meaning as described above. Here, among the photocurable resins, an ultraviolet curable resin 39 that cures in a short time by irradiation with ultraviolet light will be described as an example. It contains a photopolymerizable prepolymer, a photopolymerizable monomer and a photoinitiator as main components.

In selecting the ultraviolet curing resin 39,
Before or after curing, a transparent or translucent material is applied so that the ultraviolet rays reach deep into the holes 18 or the color of the pattern printed on the base sheet 34 can be seen through. Moreover, in the present invention, since the emboss is used as a shoe sole, the cured one has an appropriate elasticity,
An ultraviolet curable resin 39 is used that can withstand the embossing of the shoe sole in terms of tensile strength, tear strength, abrasion resistance, and other required physical properties. In this case, in order to improve the tear strength, a filler such as a short fiber may be mixed into the ultraviolet curable resin 39 so as not to hinder the curing.

Even if the adhesion between the base sheet 34 and the stencil 19 is enhanced, if the UV-curable resin 39 oozes out, the boundary between the base sheet 34 and the embossed color is unclear. It may be. In this case, if a UV curable resin 39 having a low mixing ratio of a photopolymerizable monomer that plays a role of a solvent or a UV curable resin 39 having a high mixing ratio of a photopolymerizable prepolymer having a high viscosity is applied, ultraviolet rays may be applied. The seepage of the cured resin 39 can be prevented. FIGS. 12 and 13 show an embossing process when the polyurethane elastomer 36 is used as the embossing liquid material, and FIGS. 14 and 15 show an embossing process when the ultraviolet curable resin 39 is used as the embossing liquid material.
Shown in

(4) Squeegee treatment When the polyurethane elastomer 36 or the ultraviolet curing resin 39 is poured into the hole 18 of the stencil 19,
(B) or squeegee device 3 as shown in FIG.
7, the polyurethane elastomer 36 or the ultraviolet curing resin 39 which protrudes from the upper surface of the hole 18.
Is removed. At this time, of the polyurethane elastomer 36 or the ultraviolet curing resin 39 in each hole 18, a part of the polyurethane elastomer 36 or the ultraviolet curable resin 39 which is present immediately below the upper surface of the hole is replaced with the embossed liquid raw material, the hole 18 of the stencil 19 and the tip of the squeegee device 37. Due to the surface tension, contact angle, wetting, etc. of the squeegee device 37, the tip of the squeegee device 37 should be removed together. That is, by such a squeegee process, the upper portion of the embossed liquid material in each of the holes 18 is formed so as to be entirely recessed.

Incidentally, the squeegee treatment for making the upper portion of the embossed liquid material concave as described above does not require the use of a special squeegee tool or a squeegee technique. It can be achieved by carefully performing ordinary squeegee work. Further, the degree of the depression state is related not to the squeegee technique but to factors such as surface tension, contact angle, and wetting between the embossed liquid material and the hole 18 of the stencil 19 and the tip of the squeegee device 37. Most of them are decided by the decision. Incidentally, the surface subjected to the squeegee processing in this manner defines the ground surface 3 of the emboss 2.

(5) Curing of Emboss and Deprinting After the squeegee work is completed, if the embossing liquid material is polyurethane elastomer 36, as shown in FIG.
As shown in FIG. 13, the stencil sheet 19 and the base sheet 34 were kept in close contact with each other in an oven 38, and heated at 120 ° C. for 45 minutes to cure the polyurethane elastomer 36. In this state, the plate was released as shown in FIG. Thereafter, for the purpose of further stabilizing the elastomer, as shown in FIG. 13 (b), oven heating is performed at 90 ° C. for 600 minutes, and this is cooled and depressurized, so that the ground plane 3 is formed as shown in FIG. 13 (c). The embossment 2 is formed so as to be entirely concave and the peripheral end 5 of the ground contact surface 3 is formed at an acute angle with respect to the side surface 4 of the embossment.

The embossing liquid material is an ultraviolet curable resin 3
In the case of No. 9, as shown in FIG. 15 (a), ultraviolet rays are irradiated by an ultraviolet irradiator 40 to cure the ultraviolet curing resin 39 in a relatively short time, thereby embossing as shown in FIG. 15 (b). 2 is completed.

[0045]

According to the specially-shaped emboss formed by the present invention, the ground surface of the emboss is concave, and the peripheral end of the ground surface is formed at an acute angle with respect to the side surface of the emboss. The gripping force is improved, and the possibility of slipping during running is reduced, which can be expected to achieve a good record in athletics.

In the method for producing a specially shaped emboss of the present invention, the liquid surface of the embossed liquid raw material is depressed from the surface of the stencil to a concave state by performing squeegee treatment, and the embossed ground surface is depressed as it is. Therefore, an emboss having a large ground gripping force can be manufactured very easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment in which a specially shaped emboss formed by the present invention is applied to a shoe sole of athletic shoes.

FIG. 2 is a perspective view showing various embodiments of a specially shaped emboss formed by the present invention.

FIG. 3 is an explanatory view showing step by step the process of making a stencil by sandblasting, and is a perspective view showing a process until a squirrel film is made from an object to be transferred.

FIG. 4 is a skeletal longitudinal sectional view showing a process in which a mask is created using the squirrel film and a stencil is created by sandblasting using the mask.

FIG. 5 is an enlarged perspective view showing a part of a stencil created by sandblasting.

FIG. 6 is a perspective view showing an embodiment in which the upper hole portion is tapered.

FIG. 7 is a partially enlarged perspective view of a stencil having a stepped hole, and a cutaway embossed step created by the stencil;

FIG. 8 is an explanatory view showing step by step the process of making a stencil using a master mold.

FIG. 9 is an explanatory view showing step by step the process of making a stencil when a photocurable resin film is used.

FIG. 10 is a perspective view showing a state in which a stencil created by each of the above methods is set on a base sheet.

FIG. 11 is a longitudinal sectional view showing a state of close contact with a base sheet by a magnetic action with a permanent magnet plate when the stencil includes a magnetic material.

FIG. 12 is an explanatory view showing a step-by-step process of preparing a special shape emboss of the present invention using a polyurethane elastomer, and is a perspective view showing each state of injection of a raw material liquid, squeegee, and heat curing. It is.

FIG. 13 is a perspective view showing a state of deprinting and reheating, and a shoe sole provided with the specially-shaped emboss of the present invention produced by the same.

FIG. 14 is an explanatory diagram showing step by step the formation process of the special shape emboss of the present invention using an ultraviolet curable resin, among which a stencil is set on a pattern-printed base sheet;
FIG. 4 is a perspective view showing a process from injecting a raw material liquid to performing squeegee processing.

FIG. 15 is a longitudinal sectional view and a perspective view showing a process from irradiating ultraviolet rays, removing the stencil, and forming an emboss;

FIG. 16 is a graph showing a change in viscosity when a two-part cast thermosetting polyurethane is heat-cured.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Athletic shoes 2 Embossed 3 Grounding surface 4 Side surface 5 Peripheral end 10 Lith film 12 Photocurable resin film 13 Mask 14 Hard plate 18 Hole portion 19 Perforated plate 25 Master type 26 Magnetic metal 27 Convex portion 28 Resin for mold 30 Photocurable resin film 31 substrate 32 a mask 33 unexposed portion 34 matrix sheet 35 permanent magnet plate 36 polyurethane elastomer 37 squeegee tool 38 oven 39 ultraviolet curing resin 40 UV irradiator A subject B brushes a ₁ range a ₂ range

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A43B 1/00-23/30 B29C 39/10 B29C 39/28 B41F 15/08

Claims (1)

(57) [Claims] 1. A magnetic stencil and a magnet plate
By sandwiching the base sheet, the base sheet is brought into close contact with one surface of the stencil, and after pouring the embossing liquid raw material from the other surface of the stencil into the hole of the stencil, the embossing in the hole on the other surface side of the stencil is performed. A method for producing a specially-shaped emboss, wherein the liquid surface of a liquid material is made concave by a squeegee treatment, and thereafter the embossed liquid material is cured and the plate is released.