JP7426751B1 - Products with solid objects adhered to their surfaces and their manufacturing methods - Google Patents

Abstract

An object of the present invention is to provide a product having a structure that allows a solid object to be easily and firmly adhered to a water-repellent surface of a material using an adhesive, and a method for producing such a product. A product 100 of the present invention includes a material 110 having a water-repellent surface 101, the water-repellent surface 101 comprising a material 110 including an adhesive region R1 and a solid object 120 having a bottom surface 120a adhered to the adhesive region R1. The adhesive region R1 has a plurality of holes 111, and the adhesive region R1 and the bottom surface 120a of the solid object 120 are adhered with an adhesive 130. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to a product having a solid substance adhered to its surface and a method for manufacturing the same, and particularly relates to a structure and method for bonding a solid substance to a water-repellent surface of a material using an adhesive.

Conventionally, hot melt adhesives have been used as a method for bonding solid objects such as crystal glass and jewels to flexible materials with a planar shape such as cloth and leather. A method of bonding a material and a solid object is disclosed.

Patent No. 3530979

However, with conventional methods, when adhering a solid object to the water-repellent surface of a material, hydrophilicity cannot be ensured between the water-repellent surface and the adhesive, and it is difficult to adhere the solid object to the water-repellent surface. Therefore, the adhesive strength was not sufficient.

SUMMARY OF THE INVENTION The object of the present invention is to provide a product with a structure that allows solid objects to be adhered to the water-repellent surface of a material with sufficient strength, and a method for manufacturing such a product.

(Item 1)
a material having a water-repellent surface, the water-repellent surface including an adhesive region;
a solid object whose bottom surface is adhered to the adhesive area, the adhesive area has a plurality of holes, and the adhesive area and the bottom surface of the solid object are adhered with an adhesive.

(Item 2)
The product of item 1, wherein the adhesive area has an area of about 2 mm ² to about 80 mm ² .

(Item 3)
The article of item 1, wherein the adhesive area has from about 2 pores/mm ² to about 11 pores/mm ² .

(Item 4)
The product according to item 1, wherein the solid object has a size that fits into a cube with sides of about 10 mm.

(Item 5)
The product of item 1, wherein the adhesive area is about 3 mm ² to about 40 mm ² .

(Item 6)
The product of item 1, wherein the adhesive area is generally circular.

(Item 7)
The product of item 1, wherein the solid is crystal glass.

(Item 8)
The product according to item 1, wherein the thickness of the material is about 0.3 mm to about 5 mm.

(Item 9)
The product according to item 1, wherein the material is leather, synthetic leather, cloth, wood, paper, or resin.

(Item 10)
The product according to item 1, wherein the hole penetrates the material.

(Item 11)
A method of manufacturing a product, the method comprising:
The product includes a material having a water-repellent surface and a solid body having a bottom surface,
The water-repellent surface includes an adhesive area for adhering a bottom surface of the solid object,
The method includes:
drilling a plurality of holes in the adhesive area of the material;
placing the solid object on the adhesive area via the adhesive, thereby interposing an adhesive between the adhesive area and the bottom surface of the solid object;
heating the adhesive so that the adhesive melts;
and bonding the solid substance to the material by cooling the molten adhesive so that it solidifies.

According to the present invention, it is possible to obtain a product having a structure that allows a solid substance to be adhered to a water-repellent surface of a material with sufficient strength, and a method for manufacturing such a product.

FIG. 1 is a diagram showing a product 100 according to Embodiment 1 of the present invention, showing its appearance and cross-sectional structure. FIG. 2 is a perspective view showing the product 100 shown in FIG. 1 exploded into a raw material 110, a solid substance 120, and an adhesive 130. FIG. 3 is a perspective view showing a method for manufacturing the product 100 shown in FIG. 1, and shows a step of making a hole in the adhesive region R1 of the material 110. FIG. 4 is a perspective view showing a method for manufacturing the product 100 shown in FIG. 1, and shows a step of positioning the solid object 120 with respect to the adhesive region R1 of the material 110 using the adhesive sheet 20. FIG. 5 is a perspective view showing a method for manufacturing the product 100 shown in FIG. 1, and shows a state in which the solid object 120 is placed on the adhesive region R1 of the material 110 via the adhesive 130. FIG. 6 is a perspective view showing a method for manufacturing the product 100 shown in FIG. 1, and shows a step of heating the adhesive 130 in the heating chamber 30. FIG. 7 is a perspective view showing a method for manufacturing the product 100 shown in FIG. FIG. 8 is a photograph showing a state in which several crystal glasses of different sizes are adhered to cowhide leather with a thickness of approximately 1 mm. FIG. 9 shows the pattern of holes provided in the bonding area for the crystal glass bonding of FIG. 8.

The present invention will be explained below. It should be understood that the terms used herein have the meanings commonly used in the art, unless otherwise specified. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification (including definitions) will control.

As used herein, "about" refers to a range of ±10% of the following number.

As used herein, "water repellency" refers to the surface of a material that repels water and has the property of not being easily wetted by water. Specifically, the water repellency is such that the water contact angle with respect to water droplets on the surface of the material is typically about 90° or more, preferably about 100° or more, and more preferably about 105° or more. It also includes a superhydrophobic state in which the water contact angle exceeds about 150°.

In this specification, "substantially circular" refers to any shape closed by a gentle curve, and is not limited to a perfect circle or an ellipse.

The "diameter" of the hole in the present invention refers to the maximum length of two different points in the plane of the hole on the surface of the material.

As used herein, "flexible" with respect to a material means that the material is non-rigid, non-brittle, or non-rigid, and therefore does not bend, stretch, or deform when subjected to an external force. , meaning that it is dented but not broken or loses functionality.

The object of the present invention is to obtain a product with a structure that allows solid objects to be adhered to the water-repellent surface of a material with sufficient strength.
a material having a water-repellent surface, the water-repellent surface including an adhesive region;
By providing a product, the product includes a solid object whose bottom surface is adhered to an adhesive region, the adhesive region has a plurality of holes, and the adhesive region and the bottom surface of the solid object are adhered with an adhesive. This problem was solved.

(1) Product of the present invention The product of the present invention includes a material having such a water-repellent surface and a solid object whose bottom surface is bonded with an adhesive to the adhesive area of the water-repellent surface, and has multiple adhesive areas. Other configurations, ie, the specific configuration of this product, are not particularly limited as long as the product has a hole.A specific configuration example of this product will be described below.

For example, the materials of the raw material, the adhesive, and the solid material, as well as the shapes and sizes of the material, the solid material, the adhesive area, and the holes are not particularly limited.

〔material〕
If the material is a member to which a solid object is to be adhered, has a water-repellent surface, the water-repellent surface includes an adhesive area for adhering the solid object, and the adhesive area has a plurality of holes, Other configurations are not limited and may be arbitrary. Therefore, the material may have a single layer structure or a multilayer structure.

(Structure of material)
The material of the present invention can be any material as long as it has a water-repellent surface. The water-repellent surface in the material of the present invention may be provided by applying water-repellent treatment to the surface of the material, or may be provided by superimposing a water-repellent material on the surface of the material. It may be.

Water repellent treatment is not particularly limited, and examples include low polar functional groups such as alkyl groups, alkenyl groups, alkoxy groups, and alkenyloxy groups, and alkyl groups in which one or more hydrogen atoms are substituted with fluorine atoms. Alternatively, a method of introducing a hydrophobic functional group such as an alkoxy group onto the substrate surface may be mentioned. There are no particular limitations on the water-repellent material; for example, hydrophobic polymers such as polypropylene, polyethylene, polysulfone; chlorine such as polyvinylidene chloride, polyvinylidene fluoride, fluorinated carbon, and polytetrafluoroethylene Alternatively, fluorine-containing polymers and the like can be mentioned.

The material used in the present invention may be leather (eg, cowhide), synthetic leather, cloth, wood, paper, or resin. The material of the present invention is typically leather. Leather generally has an inner layer that constitutes the leather body and a thin leather film that covers the leather body, and the thin leather film has a structure that has stronger water repellency than the leather body. Regarding leather, a thin leather film, that is, a thin coating film present on the surface of the leather body, has waterproof properties and is particularly called a silver surface. The leather may be genuine leather or synthetic leather, and the material with such a two-layer structure is not limited to leather, but may also be rubber, cloth with a water-repellent finish on the surface, It may be wood, paper, or resin.

The thickness of the material may be, for example, but not limited to, about 0.3 mm to about 5 mm. Thicknesses of about 0.3 mm to about 5 mm may be common thicknesses for fabrics used in articles such as clothing, handbags, shoes, and the like. The present invention solves the problem that conventionally it has been difficult to adhere a solid substance with sufficient strength to a material having such a thickness and a water-repellent surface.

In particular, the present invention is a useful technique for solving the problem that it is easy to attach solid objects to inflexible materials using adhesives, but it is difficult to attach solid objects to flexible materials using adhesives. solid matter can be attached to it. Such flexible materials are used as fabrics for products such as clothing, handbags, shoes, etc., and often have a thickness of about 0.5 mm to about 3 mm.

(hole of material)
Further, the hole formed in the adhesive region of the material may be a through hole or a hole with a bottom. Here, the diameter of the hole is determined by the diameter of the needle used to make the hole in the adhesive area and the properties of the material. For example, depending on the properties of the material, even if the diameter of the needle is approximately 0.8 mm, the diameter of the hole may be as small as a fraction of the diameter of the needle, specifically approximately 0.8 mm. It is possible that the size will be about .1 mm. In other words, even if a hole is made in a material with a needle, the hole does not necessarily have the same diameter as the needle. Furthermore, when making holes in different materials with a needle, the diameter of the hole created differs depending on the material even if the same needle is used.

Furthermore, the shape of the opening of the hole is not limited, and may be arbitrary. Therefore, the opening of the hole is not limited to a substantially circular opening, but may be a substantially rectangular opening. Here, the fact that the hole has a substantially circular opening means that the opening of the hole has no corners and has a smooth shape, making it difficult for the force from the adhesive to concentrate locally. This is preferable because the holes are less likely to be damaged. The diameter of the opening of the hole is mainly determined by the diameter of the needle that makes the hole in the adhesive area, and the diameter of the needle is preferably about 0.5 mm to about 1.5 mm, and more preferably about 0.5 mm to about 1.5 mm. is about 0.6 mm to about 1.0 mm, typically about 0.8 mm. If the diameter of the opening of the hole formed by the needle is small, the area of contact between the hole and the adhesive will be small, making it impossible to obtain sufficient adhesive strength, and the adhesive acting as an anchor will come out from the hole. Conversely, if the diameter of the opening of the hole formed by the needle is too large, a large force will be applied to one hole in the material from the adhesive as an anchor, causing the hole in the material to crack. This is because the adhesive used as an anchor may come out of the hole if the hole is damaged due to penetration of the hole. Those skilled in the art can appropriately select the diameter of the needle based on the size of the solid object to be bonded and the properties of the material.

(Material adhesion area)
The adhesive area in the material is an area that includes a plurality of holes and onto which a solid object is adhered. The size (width) of the bonding area is about 2 mm ² to about 80 mm ² , preferably about 3 mm ² to about 40 mm ² .

The size of the adhesive area approximately corresponds to the size of the adhesive surface of the solid object. If the solid object is large, there are various ways to attach the material to the water-repellent surface, but if the solid object is large enough to fit into a cube with sides of about 10 mm, Attachment to aqueous surfaces is difficult. The present invention has overcome this difficulty and has made it possible to adhere with sufficient strength to the water-repellent surface of a material even a small solid object that fits into a cube with sides of about 10 mm. In this case, if the bonding area is approximately circular, its area will be (10÷2) ² ×3.14=78.5 (approximately 80 mm ² ).

Also, if the area of the adhesive area to which solid objects, which are decorations attached to the fabric of products such as clothing, handbags, and shoes, is adhered is smaller than approximately ² mm (i.e., the diameter of the contact area when it is a circular area) If the size of the solid object is smaller than about 1.6 mm), it ^becomes difficult to visually recognize the solid object. ×3.14=2.01) or more. Therefore, in the present invention, the area of the bonding region is significantly in the range of about 2 mm ² to about 80 mm ² .

In particular, as shown in Examples 1 and 2 below, according to the present invention, 16 holes are formed in a bonding area of about 7 mm ² (diameter of about 3 mm) of a solid material, and 40 holes are formed in a bonding area of about 13 mm ² (diameter of about 4 mm). By providing these holes, we were able to adhere the solid material to the material with sufficient strength.

Furthermore, as shown in Example 3 below, when the adhesion area of the solid object is about 3 mm ² to about 40 mm ² (corresponding to the area of a circle with a diameter of about 2 mm to about 7 mm), it is more effective than Examples 1 and 2. Even when the depth of the needle was made shallow and many small holes were created, the solid material could be bonded to the material with sufficient strength.

If the adhesive area is to have a more subtle accent due to the solid object placed here, the solid object will be smaller, so even if the adhesive area as the placement area has an area of about 2 mm ² or less Alternatively, if the accent by the solid object placed here is to be made more prominent, the solid object will be large, so the adhesive area as the area where the solid object is placed may have an area of about 80 mm ² or more.

The adhesive region has, for example, about 2 to about 11 holes per unit area (mm ² ). Although the number of pores per unit area should be adjusted depending on the size of the solid material, a sufficient number of pores is obtained when the adhesive area has about 2 to about 11 pores per unit area (mm ² ). It has been found that adhesive strength can be used to adhere solid objects to water-repellent surfaces.

In other words, when the adhesive area of the solid object (that is, the area of the adhesive area) is approximately 7 mm ² (equivalent to the area of a circle with a diameter of approximately 3 mm), and the number of holes arranged in this adhesive area is 16. , sufficient strength was obtained for adhesion of solid materials to water-repellent surfaces. The number of holes per unit area (mm ² ) at this time is determined as 16÷(1.5×1.5×3.14)=2.26 (approximately 2 holes).

Also, when the adhesive area of the solid object (that is, the area of the adhesive area) is approximately 3.1 mm ² (corresponding to the area of a circle with a diameter of approximately 2 mm), the number of holes arranged in this adhesive area is 33. When this was done, sufficient strength was obtained for adhesion of the solid material to the water-repellent surface. The number of holes per unit area (mm ² ) at this time is determined as 33÷(1×1×3.14)=10.6 (approximately 11 holes).

Further, the number of holes in one adhesive area is, for example, about 16 to about 280, but depending on the size of the solid material placed in this area, it may have 16 or less holes. Alternatively, it may have 280 or more holes.

Furthermore, the shape of the bonding area is generally preferably approximately circular. In this case, it is possible to make the adhesive area of the material and the bottom surface of the solid object to be adhered similar to the approximately circular shape. This is because it can be formed into a shape that is difficult to peel off. However, the shape of the bonding area is not limited to a substantially circular shape, but may be a substantially elliptical shape or a substantially polygonal shape such as a substantially quadrangular shape or a substantially hexagonal shape depending on the shape of the solid object placed in the bonding region. The shape of the adhesive region preferably matches the shape of the bottom surface of the solid object. This is because if the shape of the bonding region matches the shape of the bottom surface of the solid material, the opening edge of the hole formed in the bonding region will be hidden by the solid material.

[Solid matter]
The solid substance may be any substance as long as it is adhered to the material, and its material and shape may be arbitrary. For example, it may be glass such as crystal glass (high-quality glass with high transparency). Note that the solid material is not limited to this, and may be glass other than crystal glass, jewelry, crystal, stone, pottery, porcelain, other ceramics, or metal, resin, etc. It may be.

As mentioned above, the size of the solid object is, for example, a size that fits within a cube with a side of approximately 10 mm, but the size of the solid object is such that it extends beyond the cube (the area of the contact area with the material is approximately 10 mm). 80 mm ² or more), or the solid material may have a contact area with the material less than about 2 mm ² . This is because the size of the solid object adhered to the adhesive area also varies depending on the design that takes into account the added value of the product to which the solid object is attached.

For example, depending on the product to which the solid object is attached, it may be possible to increase the added value by using a large or small size solid object. This is because the contact area is not necessarily limited to a size that fits within a 10 mm cube (the area of the contact area is smaller than about 80 mm ² ), or it is not limited to the area of the contact area larger than about 2 mm ² .

Although the shape of the solid object may be arbitrary, it may have a substantially flat bottom surface that functions at least as an adhesive surface.

〔glue〕
Adhesives are not particularly limited as long as they can bond solid objects to materials, but hot-melt adhesives, which are solid at room temperature, are preferred because they allow for easy bonding and high bonding accuracy. A type of adhesive that melts when heated is used. The melting point of the hot melt adhesive is, for example, about 130°C, but is not limited thereto, and may be higher (e.g., about 150°C) or lower (e.g., about 110°C). .

Hot melt adhesives are nonflammable adhesives that do not contain any organic solvents that can catch fire. Although it becomes a liquid when heated, it contains no water or solvent, is non-toxic, and is used in food containers and sealants.

Examples of the hot melt adhesive of the present invention include ethylene/vinyl acetate copolymer resin (EVA) adhesive, polyethylene adhesive, polyamide adhesive, polyisobutylene adhesive, polyester adhesive, and the like.

(2) Method for manufacturing a product Furthermore, an object of the present invention is to obtain a method for manufacturing a product having a structure that allows a solid substance to be adhered to a water-repellent surface of a material with sufficient strength,
A method of manufacturing a product, the method comprising:
The product includes a material having a water-repellent surface and a solid body having a bottom surface;
the water-repellent surface includes an adhesive area for adhering the bottom surface of the solid object;
The method is
drilling a plurality of holes in the bonding area of the material;
A step of interposing the adhesive between the adhesive region and the bottom surface of the solid material by placing the solid material on the adhesive region via the adhesive;
heating the adhesive so that it melts;
The above object has been achieved by providing a method for manufacturing a product, which includes the step of: bonding a solid object to a material by cooling the molten adhesive so that it solidifies.

As described above, in the method for manufacturing a product of the present invention, when bonding the bottom surface of a solid object to an adhesive area having a water-repellent surface of a material, a plurality of holes are formed in the adhesive area, and the adhesive area is Other configurations are not limited as long as the bottom surface of the solid object is bonded via an adhesive.

However, in the following embodiments, the specific structure of the product is a structure in which the bottom surface of crystal glass is adhered to the adhesive area of the water-repellent surface of the leather with hot melt adhesive, and the manufacturing method of the product is as follows. Describe how to manufacture structural products.

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing a product 100 according to Embodiment 1 of the present invention, FIG. 1(a) is a perspective view showing its appearance, and FIG. 1(b) is an A-- It is an A-line sectional view. FIG. 2 is a perspective view showing the product 100 shown in FIG. 1 exploded into a raw material 110, a solid substance 120, and an adhesive 130.

This product 100 includes a material 110 having a water-repellent surface 101 and a solid object 120 having a bottom surface 120a, and the bottom surface 120a of the solid object 120 is adhered to the water-repellent surface 101 of the material 110 with a hot melt adhesive 130. It is.

Here, the water-repellent surface 101 of the material 110 includes a plurality of adhesive regions R1 for adhering the solid object 120, and the adhesive region R1 of the material 110 has a plurality of holes 111. Here, the number of adhesive regions R1 on the water-repellent surface 101 is not limited, and may be one, two, or more, for example. Note that in the drawing, the number of adhesive regions R1 included in the water-repellent surface 101 is two for convenience of illustration.

Further, the number of holes 111 in the adhesive region R1 is not limited as long as it is 2 or more, and is, for example, 16 to 280 as described above, but may be 15 or less or 281 or more. Note that here, four holes 111 are shown in the drawing for convenience of illustration.

Further, the material 110 includes a material main body 110a and a material thin film 110b formed on the surface of the material main body 110a, and this material thin film 110b makes the surface of the material 110 a water-repellent surface 101. This material thin film 110b covers the surface of the material main body 110a to make the material main body 110a waterproof.

This will be explained in detail below.

(Material 110)
The material 110 is leather (genuine leather) here, the material main body 110a is a leather main body, and the material thin film 110b is a thin film that covers the surface of the leather main body. This material thin film 110b makes the leather as the material 110 waterproof, and the material thin film 110b makes the surface of the material 110 a water-repellent surface 101.

Here, the material thin film 110b may be a portion called a grain surface that forms the surface portion of genuine leather as an inherent structure of the leather, or may be obtained by removing the grain surface portion that is originally provided in the leather. It may also be a coating film obtained by applying a coating such as a resin to the obtained part (floor skin part).

Further, the thickness of the material 110 is approximately 0.3 mm to approximately 5 mm. However, the thickness of the material 110 may be thinner than about 0.3 mm or thicker than about 5 mm. Note that, as described above, about 0.3 mm to about 5 mm may be the general thickness of fabrics used for products such as clothing, handbags, and shoes. Here, as the material 110, a material having a thickness of about 0.5 mm to about 3 mm is mainly used because it is highly flexible. In particular, thicker leathers have less elasticity and flexibility than those with a thickness of about 0.5 mm to about 3 mm. However, as shown in the Examples, it has been achieved that a solid substance can be adhered with sufficient strength to a flexible material having such a thickness and a water-repellent surface.

Further, the water-repellent surface 101 of the material 110 includes a plurality of bonding regions R1 for bonding the solid object 120, and the bonding region R1 has a plurality of holes 111. Note that this hole 111 is a through hole passing through the material 110. However, the hole 111 may be a hole with a bottom.

In the product 100 of Embodiment 1, the material 110 is leather, which is typical for bonding solid objects; however, the material 110 is not limited to leather, and may include synthetic leather, cloth, resin, or paper. But that's fine.

(Adhesive area R1)
The adhesive region R1 has an area of, for example, about 2 mm ² to about 80 mm ² .

Here, the numerical value "about 80 mm ² " as the upper limit of the area of the adhesive region R1 is based on the size of the solid object of the present invention.

That is, if the solid object is large enough to fit into a cube with sides of about 10 mm, it is difficult to attach it to the water-repellent surface of the material. The present invention overcomes this difficulty and makes it possible to adhere even a small solid object that fits into a cube with sides of approximately 10 mm to the water-repellent surface of the material with sufficient strength. The solid object of the present invention has a size that fits into a cube with a side of about 10 mm, and if the contact area where this solid object contacts the material is a circular area, the area is 5 x 5 x 3. .14=78.5 (approximately 80) ^mm2 .

Further, the numerical value "about 2 mm ² " as the lower limit of the area of the adhesive region R1 is also based on the size of the solid material of the present invention.

When the area of the adhesion area to which a solid object, which is a decoration attached to the fabric of products such as clothing, handbags, and shoes, is adhered is smaller than about 2 ^mm2 (that is, when the diameter is smaller than about 1.6 mm), visual inspection Since it becomes difficult to recognize solid objects, the adhesive area to which solid objects of such size are bonded is preferably about 2 mm ² (0.8 x 0.8 x 3.14 = 2.01) or more. It is assumed that the area is .

Note that the adhesive area R1 may have an area of about 2 mm ² or less if the accent caused by the solid object placed here is to be more subtle, or if the accent caused by the solid object placed here is to be made more subtle. If the area is to be made more prominent, it may have an area of approximately 80 mm ² or more.

However, if the adhesive has a high viscosity in the molten state, the adhesive region R1 may have holes with a large diameter at a density of about 2 holes/mm ² or less, If the adhesive has a low viscosity in the molten state, it may have a density of about 3.5 holes/mm ² or more with small diameters.

Further, the adhesive region R1 is approximately circular. However, the shape of the bonding region R1 is not limited to a substantially circular shape, but may be a substantially elliptical shape or a substantially polygonal shape such as a substantially quadrangular shape or a substantially hexagonal shape.

Further, although the hole formed in the adhesive region is a through hole, it may be a hole with a bottom instead.

The hole 111 is generally formed by piercing the leather with a needle having a diameter of about 0.5 mm to about 1.5 mm, more preferably about 0.6 mm to about 1.0 mm, typically about 0.8 mm. It has a substantially circular opening with a size obtained by this method. Here, the fact that the hole has a substantially circular opening means that the opening of the hole has no corners and has a smooth shape, making it difficult for the force from the adhesive to concentrate locally. This is preferable because the holes are less likely to be damaged. Further, the diameter of the opening of the hole is about 0.5 mm to about 1.5 mm, more preferably about 0.6 mm to about 1.0 mm, and typically about 0.8 mm. In view of the area of the contact surface with the adhesive, the adhesive acting as an anchor is difficult to escape from the hole, and sufficient adhesive strength between the solid object and the material can be achieved. In other words, if the diameter of the opening of the hole is small, the area of the contact surface between the hole and the adhesive will be small, and sufficient adhesive strength will not be obtained, resulting in the adhesive acting as an anchor coming out of the hole. On the other hand, if the diameter of the opening of the hole is too large, a large force will be applied to one hole in the material from the adhesive used as the anchor, and the hole in the material will crack and break, causing the anchor to fail. The adhesive will come out from the hole.

(Solid 120)
Here, the solid material 120 is crystal glass. However, the solid material 120 is not limited to crystal glass, and may be other solid materials such as glass, jewelry, and crystal. Further, the solid object 120 may be made of stone, earthenware, porcelain, metal, or resin.

The solid object 120 has a size that fits into a cube with sides of about 10 mm. However, it may have a size that extends beyond this cube.

Next, a method for manufacturing the product 100 shown in FIG. 1 will be explained.

3 to 7 are perspective views showing the method for manufacturing the product 100 in the order of main steps. That is, FIG. 3 shows the process of making holes in the adhesive area R1 of the material 110, FIG. 4 shows the process of positioning the solid object 120 using the adhesive sheet 20, and FIG. 6 shows the step of heating the adhesive 130 in the heating chamber 30, and FIG. 7 shows the step of removing the adhesive sheet 20.

The method for manufacturing this product 100 includes an adhesion step of adhering a solid object 120 to a material 110.

Specifically, in the bonding process, first, as shown in FIG. 3, the material 110 is placed on the processing table 10, and a hole is made using the needle 11 in the bonding region R1 of the material 110. A plurality of holes 111 are formed. For convenience of illustration, FIG. 3 shows a state in which four holes 111 are formed adjacent to each other on the front, rear, left, and right sides of the processing table 10, but in reality in one bonding area R1, As mentioned above, the number of holes is, for example, 16 to 40.

Next, the adhesive surface 20a of the adhesive sheet 20 is attached to the tip of a plurality of (in this case, two) solid objects 120, so that each solid object 120 is supported by the adhesive sheet 20. , and align with the adhesive region R1 of the material 110 (see FIG. 4).

After performing the alignment in this way, by placing the two solid objects 120 on the adhesive region R1 of the material 110, the material 110 and the solid object 120 are aligned with the adhesive region R1 of the material 110 and the bottom surface 120a of the solid object 120. An adhesive 130 is interposed between them (see FIG. 5).

Thereafter, the solid object 120 is placed on the adhesive region R1 of the material 110 via the adhesive 130, and is moved into the heating chamber 30.

Specifically, with the solid material 120 attached to the adhesive sheet 20 placed on the material 110, the material 110 and the solid material 120 are placed on the heating table 30a in the heating chamber 30, and the heating chamber 30 is heated. The solid object 120 is pressed against the material 110 via the adhesive sheet 20 by the pressing block 30b.

In this state, the adhesive 130 is heated in the heating chamber 30 so that the adhesive 130 fixed to the bottom surface 120a of the solid object 120 is melted between the solid object 120 and the material 110 (see FIG. 6).

At this time, the heating temperature can be appropriately determined by a person skilled in the art based on the hot melt adhesive used and the properties of the material, but is, for example, about 150° C. to about 180° C., which is the melting temperature of the adhesive 130. The temperature may be about 20°C to 50°C higher. The heating time can also be appropriately determined by those skilled in the art based on the hot melt adhesive used and the properties of the material, but may be a short time, such as 5 seconds or less.

In this state, the solid object 120 is pressed against the material 110, so when the adhesive 130 fixed to the bottom surface 120a of the solid object 120 melts, the adhesive 130 is formed in the adhesive region R1 of the material 110. It invades into the plurality of holes 111.

Subsequently, the material 110 is taken out from the heating chamber 30 together with the solid material 120, placed on the processing table 10, and cooled naturally. At this time, the adhesive 130 fixed to the bottom surface 120a of the solid object 120 melts therefrom and solidifies while entering the inside of the hole 111 of the material 110 (see FIG. 1(b)).

Thereafter, the adhesive sheet 110 is removed from the solid object 120 to complete the product 100 (see FIG. 7).

(Example 1)
In Example 1, the material 110 was 1 mm thick leather with a water-repellent surface, and the solid material 120 was crystal glass. The diameter of the contact area R1 of the material 110 is about 3.0 mm (area about 7 mm ² ), the number of holes 111 in the contact area R1 is about 16, and the holes are formed in the adhesive area with a needle having a diameter of 0.8 mm. did. In this case, the number of holes 111 per unit area (mm ² ) is approximately 2.3.

The solid substance 120 could be adhered to the water-repellent surface 101 of the material 110 with sufficient strength by a simple operation without impairing the beauty of the product.

(Example 2)
In Example 2, the material 110 was 2 mm thick leather with a water-repellent surface, and the solid material 120 was crystal glass. The diameter of the contact area R1 of the material 110 is approximately 4.0 mm (area approximately 13 mm ² ), the number of holes 111 in the contact area R1 is approximately 40, and the holes are formed in the adhesive area using a needle with a diameter of 0.8 mm. did. In this case, the number of holes 111 per unit area (mm ² ) is approximately 3.2.

The solid substance 120 could be adhered to the water-repellent surface 101 of the material 110 with sufficient strength by a simple operation without impairing the beauty of the product.

(Example 3)
In Example 3, the material was cowhide with a thickness of about 1 mm, and several crystal glasses G of different sizes were used as the solid material. Here, the size of each crystal glass used (corresponding to the diameter of the contact area) and the number of holes in the bonding area where the individual crystal glasses are bonded were as follows.

Number of holes in a contact area of approximately 7 mm in diameter: 280 Number of holes in a contact area of approximately 6 mm in diameter: 212 Number of holes in a contact area of approximately 5 mm in diameter: 176 Contact with a diameter of approximately 4 mm Number of holes in the area: 104 Number of holes in the contact area of about 3 mm in diameter: 66 Number of holes in the contact area of about 2 mm in diameter: 33 Figure 8 shows cowhide leather with a thickness of about 1 mm. Figure 8 shows the state in which the crystal glass G of the above-mentioned size is adhered to.From this figure, it can be seen that the solid crystal glass G of any size can be adhered to the cowhide material without spoiling the aesthetic appearance. I can see that it is being done. FIG. 9 shows the pattern of holes in each adhesive area. The black square is the area where the needle was inserted, and the line shows the trajectory of the needle movement. In addition, it has been confirmed in another test that even if the specific arrangement of the holes is different from this, it can be bonded with sufficient strength (data not shown).

(Comparative example 1)
A cloth was laminated on the surface of the leather having a water-repellent surface, and the cloth was fixed to the leather with an adhesive, and a crystal glass was adhered onto the cloth with an adhesive. In this case, the presence of cloth impairs the aesthetic appearance of the finished product, and the work is also complicated.

(Comparative example 2)
A solid substance was adhered to the surface of a leather having a two-layer structure consisting of a water-repellent surface layer and a leather body. Specifically, holes were made in the water-repellent surface layer to form depressions, and crystal glass was bonded into the depressions.

With this method, the cut end of the hole drilled in the water-repellent surface layer is visible, and the color of the side of the hole is different from the surrounding color, which makes the finished product less aesthetically pleasing. Moreover, the work was complicated.

As mentioned above, although the present invention has been illustrated using the preferred embodiment of the present invention, the present invention should not be interpreted as being limited to this embodiment. It is understood that the invention is to be construed in scope only by the claims. It will be understood that those skilled in the art will be able to implement the present invention to an equivalent extent based on the description of the present invention and common general technical knowledge from the description of the specific preferred embodiments of the present invention. It is understood that the documents cited herein are to be incorporated by reference into this specification to the same extent as if the documents themselves were specifically set forth herein.

INDUSTRIAL APPLICABILITY The present invention is useful as it provides a product having a structure that allows a solid object to be easily and firmly adhered to a water-repellent surface of a material using an adhesive, and a method for producing such a product.

10 Processing table 11 Needle 20 Adhesive sheet 30 Heating chamber 30a Heating table 30b Presser block 100 Product 101 Water-repellent surface 110 Material (leather)
110a Material main body 110b Material thin film (coating film)
111 Hole 120 Solid 120a Bottom 130 Adhesive R1 Adhesive area

Claims (9)

A method of manufacturing a product, the method comprising:
The product includes a material having a water-repellent thin film as a surface and a solid material having a bottom surface,
the surface includes a plurality of discontinuous adhesive areas for adhering a bottom surface of the solid object;
The method includes:
drilling a plurality of holes with a needle in the adhesive area of the material;
interposing an adhesive between the adhesive region and the bottom surface of the solid material by placing the solid material on the adhesive region via the adhesive;
heating the adhesive so that the adhesive melts;
adhering the solid object to the material by cooling the molten adhesive so that it solidifies ;
The material is leather or synthetic leather,
the adhesive area has an area of about 2 mm ² to about 80 mm ² ;
The adhesive area has about 2 holes/mm ² to about 11 holes/mm ² ,
The manufacturing method, wherein the solid material has a size that fits into a cube with a side of about 10 mm . The method of claim 1, wherein the needle has a diameter of about 0.5 mm to about 1.5 mm. The method of claim 1, wherein the adhesive area is about 3 mm ² to about 40 mm ² . The manufacturing method according to claim 1, wherein the bonding area is approximately circular. The manufacturing method according to claim 1, wherein the solid material is crystal glass. The manufacturing method according to claim 1, wherein the thickness of the material is about 0.3 mm to about 5 mm. The manufacturing method according to claim 1, wherein the material is leather . The manufacturing method according to claim 1, wherein the hole penetrates the material. A product manufactured by the manufacturing method according to any one of claims 1 to 8 .

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