JP6796286B2 - Rubber products and their manufacturing methods - Google Patents

Description

The present invention relates to a rubber product having a base material and a rubber-based resin layer, and a method for producing the same.

Conventionally, rubber products having a base material and a rubber-based resin layer have been known. Such a rubber product can be obtained by arranging a base material in a mold in advance and injecting a rubber-based resin into the base material.

However, in the conventional rubber product, the adhesiveness between the base material and the rubber resin layer is not sufficient, and the base material of the rubber product and the rubber resin layer may be separated. For this reason, it has been considered to provide a wedge shape on the rubber-based resin layer and to improve the adhesion to the base material by the wedge shape.

However, in order to provide the wedge shape on the rubber-based resin layer, it is necessary to form the inner surface of the mold into a complicated shape, which increases the manufacturing cost.

JP-A-10-128863

The present invention has been made in consideration of such a point, and an object of the present invention is to provide a rubber product capable of enhancing the adhesiveness between a base material and a rubber-based resin layer and a method for producing the same.

The present invention comprises a base material having a base material body made of synthetic resin, a base material having a vapor-deposited film of an inorganic compound formed on one surface of the base material body, and a rubber-based resin laminated on the vapor-deposited film of the base material. It is a rubber product characterized by having a layer.

The present invention is a rubber product characterized in that the base material main body contains any one of polyethylene terephthalate, polycarbonate, acrylic, and nylon.

The present invention is a rubber product characterized in that the rubber-based resin layer contains any one of isoprene rubber, butadiene rubber, and silicone rubber.

The present invention is a rubber product, wherein the vapor-deposited film includes an alumina-deposited film or a silica-deposited film.

The present invention comprises a step of arranging a base material having a synthetic resin base material body and a vapor deposition film of an inorganic compound formed on one surface of the base material body in a mold, and at least in the mold. This is a method for manufacturing a rubber product, which comprises a step of injecting a rubber-based resin onto the vapor-deposited film side to form a rubber-based resin layer.

The present invention is a method for producing a rubber product, characterized in that the base material body contains any one of polyethylene terephthalate, polycarbonate, acrylic, and nylon.

The present invention is a method for producing a rubber product, wherein the rubber-based resin layer contains any one of isoprene rubber, butadiene rubber, and silicone rubber.

The present invention is a method for producing a rubber product, wherein the vapor-deposited film includes an alumina-deposited film or a silica-deposited film.

As described above, according to the present invention, the adhesiveness between the base material and the rubber-based resin layer can be enhanced.

FIG. 1 is a side sectional view showing a rubber product according to the first embodiment. FIG. 2 is a side sectional view showing a method of manufacturing a rubber product according to the first embodiment. FIG. 3 is a side sectional view showing a rubber product according to the second embodiment. FIG. 4 is a side sectional view showing a method of manufacturing a rubber product according to the second embodiment. FIG. 5 is a side sectional view showing a rubber product according to the third embodiment. FIG. 6 is a side sectional view showing a method of manufacturing a rubber product as a comparative example.

<First Embodiment>
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.

First, the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the rubber product 10 is formed of a synthetic resin base material body 11A and a thin-film vapor deposition film 12 of an inorganic compound formed on one surface of the base material body 11A, for example, CVD (Chemical Vapor Deposition). A synthetic resin base material 11 having the obtained silica vapor deposition film (SiO ₂ ) or the aluminum oxide vapor deposition film (Al ₂ O ₃ ) obtained by CVD was laminated on the vapor deposition film 12 of the base material 11. It includes a rubber-based resin layer 13.

Further, the base material 11 has a printing layer 14 provided on the surface of the base material main body 11A opposite to the vapor deposition film 12.

Next, the material of each component will be described.

As the base material body 11A of the base material 11 made of synthetic resin, any material of polyethylene terephthalate, polycarbonate, acrylic, and nylon can be used.

Examples of the inorganic compound vapor deposition film 12 include the silica vapor deposition film and the aluminum oxide vapor deposition film described above, and both the silica vapor deposition film and the aluminum oxide vapor deposition film are made of a transparent material.

Such a thin-film deposition film 12 can be vapor-deposited directly on the base material body 11A of the base material 11 by CVD, but the thin-film deposition film 12 is formed on the base material for vapor deposition (not shown), and the thin-film deposition film 12 is formed. The formed vapor deposition substrate may be attached on the substrate body 11A of the substrate 11 described above.

The vapor-deposited film 12 is not limited to the silica-film-deposited film made of the transparent material or the aluminum oxide-deposited film described above, and an aluminum-deposited film (Al) may be used.

Further, as the rubber-based resin 13, styrene-butadiene rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber and the like can be used in addition to isoprene rubber, butadiene rubber and silicone rubber.

Next, the operation of the embodiment having such a configuration will be described.

First, as shown in FIG. 2, a base material 11 having a vapor deposition film 12 formed on one surface of the base material main body 11A and a printing layer 14 formed on the other surface of the base material main body 11A is prepared. 11 is arranged in the mold 21.

Next, the rubber resin 13 is injected into the mold 21 from the gate 22 of the mold 21. In this case, the rubber-based resin 13 ejected from the gate 22 into the mold 21 is laminated on the vapor-deposited film 12 of the base material 11.

In this way, the base material 11 having the base material main body 11A, the vapor deposition film 12 formed on one surface of the base material main body 11A, and the printing layer 14 formed on the other surface of the base material main body 11A. , A rubber product 10 having a rubber-based resin layer 13 laminated on a vapor-deposited film 12 of a base material 11 can be obtained.

The rubber product 10 thus obtained can be used as a tag such as a name tag.

Further, the rubber product 10 includes a base material body 11A, a base material 11 having a vapor deposition film 12, a printing layer 14, and a rubber resin layer 13 laminated on the vapor deposition film 12 of the base material 11. Since the thin-film deposition film 12 of the base material 11 has a kind of anchoring effect, the base material 11 and the rubber-based resin layer 13 can be firmly adhered to each other.

Therefore, the rubber-based resin layer 13 does not peel off from the base material 11 of the rubber product 10.

Here, FIG. 6 shows a rubber product 10 as a comparative example. As shown in FIG. 6, when the rubber-based resin layer 13 is provided on the base material body 11A of the base material 11 without providing the vapor-deposited film 12, it is conceivable that the rubber-based resin layer 13 is peeled off from the base material 11. ..

Therefore, as shown in FIG. 6, a through hole 11a is formed in advance in the base material 11 arranged in the mold 21, and a groove portion 23 is formed in the mold 21.

In FIG. 6, the rubber-based resin layer 13 ejected from the gate 22 into the mold 21 reaches the groove portion 23 of the mold 21 through the through hole 11a of the base material 11, and the groove portion 23 forms a wedge 13b. .. In this case, the rubber-based resin layer 13 has a penetration portion 13a corresponding to the through hole 11a of the base material 11 and a wedge 13b, and the wedge 13b prevents the base material 11 and the rubber-based resin layer 13 from peeling off. doing.

On the other hand, according to the present embodiment, the rubber-based resin layer 13 is provided with the vapor-deposited film 12 on one surface of the base material body 11A of the base material 11 without providing a wedge, and the other side of the base material body 11A is provided. The rubber product 10 can be obtained only by providing the printing layer 14 on the surface and laminating the rubber resin layer 13 on the vapor deposition film 12 of the base material 11. In this case, since the vapor-deposited film 12 exerts an anchor effect on the rubber-based resin layer 13, the rubber-based resin layer 13 does not peel off from the base material 11.

<Second Embodiment>
Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

As shown in FIG. 1, the rubber product 10 includes a synthetic resin base material body 11A and a vapor deposition film 12 of an inorganic compound formed on both sides of the base material body 11A, for example, a silica vapor deposition film obtained by CVD. On a synthetic resin base material 11 having a SiO ₂ ) or an aluminum oxide vapor deposition film (Al ₂ O ₃ ) obtained by CVD, and a thin film 12 provided on both sides of the base material body 11A of the base material 11. It includes a pair of laminated rubber-based resin layers 13.

A recess 16 is formed on the upper surface of the base material 11, and the IC chip 15 is mounted in the recess 16.

Next, the material of each component will be described.

As the base material body 11A of the base material 11 made of synthetic resin, any material of polyethylene terephthalate, polycarbonate, acrylic, and nylon can be used.

Examples of the inorganic compound vapor deposition film 12 include the silica vapor deposition film and the aluminum oxide vapor deposition film described above, and both the silica vapor deposition film and the aluminum oxide vapor deposition film are made of a transparent material.

Such a thin-film deposition film 12 can be vapor-deposited directly on the base material body 11A of the base material 11 by CVD, but the vapor-deposited film 12 is formed on the base material for vapor deposition, and the vapor-deposited film 12 is formed for vapor deposition. The base material may be attached on the above-mentioned base material 11.

The vapor-deposited film 12 is not limited to the silica-film-deposited film made of the transparent material or the aluminum oxide-deposited film described above, and an aluminum-deposited film (Al) may be used.

Further, as the rubber resin 13, styrene-butadiene rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber and the like can be used in addition to isoprene rubber, butadiene rubber, silicone rubber isoprene rubber, butadiene rubber and silicone rubber.

Next, the operation of the embodiment having such a configuration will be described.

First, as shown in FIG. 4, a base material 11 having a vapor deposition film 12 formed on both sides of the base material main body 11A is prepared, and the base material 11 is arranged in the mold 21.

Next, the rubber-based resin 13 is sequentially injected into the mold 21 from the pair of gates 22 provided at the upper and lower portions of the mold 21. In this case, the rubber-based resin 13 injected into the mold 21 from the pair of gates 22 is sequentially laminated on the vapor deposition film 12 on the upper surface and the vapor deposition film 12 on the lower surface of the base material 11.

In this way, on the base material 11 having the base material main body 11A and the vapor deposition films 12 formed on both sides of the base material main body 11A, and on the vapor deposition films 12 provided on both sides of the base material main body 11A of the base material 11. A rubber product 10 having a pair of rubber-based resin layers 13 laminated on the surface can be obtained.

The rubber product 10 thus obtained has an IC chip 15 mounted in a recess 16 formed on the upper surface of the base material 11, and can be used as an IC tag, for example.

Further, the rubber product 10 has a base material 11 having a base material body 11A and a vapor deposition film 12 provided on both sides of the base material body 11A, and a vapor deposition film provided on both sides of the base material body 11A of the base material 11. A pair of rubber-based resin layers 13 laminated on the 12 are provided, and the pair of thin-film deposition films 12 of the base material 11 have a kind of anchoring effect. Therefore, the base material 11 and the pair of rubber-based resin layers 13 are combined. Can be firmly adhered.

Therefore, the rubber-based resin layer 13 does not peel off from the base material 11 of the rubber product 10.

<Third embodiment>
Next, a third embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 5, the rubber product 10 is a thin-film film 12 of an inorganic compound formed on one surface of the base material body 11A and the base material body 11A, for example, obtained by CVD (SiO ₂ ) or CVD. A synthetic resin base material 11 having the aluminum oxide vapor deposition film (Al ₂ O ₃ ) obtained in the above method and a contact switch 13A made of a rubber resin laminated on the vapor deposition film 12 of the base material 11 are provided. There is.

As shown in FIG. 5, a circuit wiring 18 is provided on the vapor-deposited film 12, and a conductive portion 17 for conducting the circuit wiring 18 is provided inside the contact switch 13A.

Next, the material of each component will be described.

As the base material body 11A of the base material 11 made of synthetic resin, any material such as polyethylene terephthalate, polycarbonate, acrylic, and nylon can be used.

Examples of the inorganic compound vapor deposition film 12 include the silica vapor deposition film and the aluminum oxide vapor deposition film described above, and both the silica vapor deposition film and the aluminum oxide vapor deposition film are made of a transparent material.

Such a thin-film deposition film 12 can be vapor-deposited directly on the base material body 11A of the base material 11 by CVD, but the vapor-deposited film 12 is formed on the base material for vapor deposition, and the vapor-deposited film 12 is formed for vapor deposition. The base material may be attached on the base material body 11A of the base material 11 described above.

As the rubber-based resin constituting the contact switch 13A, styrene-butadiene rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber and the like can be used in addition to isoprene rubber, butadiene rubber and silicone rubber.

Next, the operation of the embodiment having such a configuration will be described.

First, as shown in FIG. 5, a base material 11 having a vapor deposition film 12 formed on one surface of the base material main body 11A is prepared, and a circuit wiring 18 is provided on the vapor deposition film 12 of the base material 11.

Next, a contact switch 13A made of a rubber-based resin provided with a conductive portion 17 inside is placed on the vapor-deposited film 12 of the base material 11. Next, the laser beam L is irradiated from below the base material 11.

The laser beam L passes through the base material body 11A and the vapor deposition film 12 of the base material 11 to heat the lower surface of the contact switch 13A, and adheres the contact switch 13A onto the vapor deposition film 12.

In this case, it is preferable that the base material 11 and the vapor deposition film 12 are both made of a transparent material.

The rubber product 10 thus obtained can be used, for example, as a circuit board having a contact switch 13A.

Further, the rubber product 10 has a base material 11 having a base material main body 11A and a vapor deposition film 12 provided on one surface of the base material main body 11A, and a vapor deposition film 12 on the base material main body 11A of the base material 11. The contact switch 13A made of rubber-based resin laminated on the base material 11 is provided, and the vapor-deposited film 12 of the base material 11 has a kind of anchoring effect. Therefore, the base material 11 and the contact switch 13A made of rubber-based resin are firmly attached. Can be glued.

Therefore, the contact switch 13A made of the rubber-based resin does not peel off from the base material 11 of the rubber product 10.

Next, specific examples of the present invention will be described.

Example 1: A silica-deposited polyethylene terephthalate (PET) (thickness 12 μm) treated surface was left, and a 200 μm-thick PET was bonded to the untreated surface with an adhesive to prepare a laminated PET having a thickness of about 217 μm (the adhesive was Heat-dried dry laminate with a thickness of about 5 μm).

Liquid silicon (Shinetsu Silicon KE-1950-40A / B) was dropped on the vapor-deposited surface in a hemispherical shape of 2 g with a dropper and cured at 150 ° C. for 2 minutes to confirm adhesion. There was no deformation of the base material, and silicon and PET adhered well.

Comparative Example 1: Liquid silicon was added and cured on the untreated surface of 200 μm PET in the same manner as in Example 1 without using the silica-deposited PET. As in Example 1, there was no change in the base material, but the hemispherical silicon was easily peeled off by lightly touching it with a finger.

10 Rubber product 11 Base material 11A Base material body 12 Deposited film 13 Rubber resin layer 13A Contact switch 14 Printing layer 15 IC chip 16 Recess 17 Conduction part 18 Circuit wiring 21 Mold 22 Gate

Claims (5)

A step of preparing a base material having a base material body made of synthetic resin and a silica vapor deposition film formed on one surface of the base material body by a CVD method.
The process of laminating a silicone rubber layer on the silica vapor deposition film side,
It is provided with a step of heating a base material on which silicone rubber is laminated on the silica vapor deposition film side .
A method for producing a rubber product, wherein the silica-deposited film formed by the CVD method adheres to the base material body and has an anchor effect between the base material body and the silicone rubber. The method for producing a rubber product according to claim 1, wherein when the base material is heated, the silicone rubber on the silica-deposited film of the base material body is heated and the silicone rubber is adhered to the silica-deposited film. In the step of adhering the silicone rubber to the silica-deposited film, laser light is irradiated from the surface of the base material body opposite to the silica-deposited film, and the irradiated laser light passes through the base material body and the silica-deposited film to form silicone. The method for producing a rubber product according to claim 2, wherein the rubber is heated and the silicone rubber is adhered to a silica-deposited film. A step of preparing a base material having a base material body made of synthetic resin and a silica vapor deposition film formed on one surface of the base material body by a CVD method.
A step of injecting a silicone rubber layer onto the silica-deposited film side of the base material and laminating while heating the base material is provided.
A method for producing a rubber product, wherein the silica-deposited film formed by the CVD method is in close contact with the base material body and has an anchor effect between the base material body and the silicone rubber. The method for producing a rubber product according to any one of claims 1 to 4, wherein the base material main body contains any one of polyethylene terephthalate, polycarbonate, acrylic, and nylon.

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