JP3233872B2 - Recursive transfer sheet and rubber molded product transferred using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recursive transfer which can be transferred to a rubber molded product, has excellent durability and freedom of design, shines with high luminance, and reflects incident light from a wide angle range. Sheet and transfer was performed using this
Related to rubber molded products .

[0002]

2. Description of the Related Art Conventionally, as a method of providing a shiny portion on a rubber molded product such as a tire to bring out a design effect, a reflection sheet having glass beads having recursive properties adhered to the surface is bonded to the surface of the rubber molded product. Was to be done.
In this method, a reflective sheet is attached to a rubber semi-molded product before vulcanization with a rubber-based adhesive, and then the whole is vulcanized so that the reflective sheet is adhered to the rubber molded product.

[0003]

However, in this method, although the rubber-based pressure-sensitive adhesive adheres to the rubber semi-molded product by vulcanization, the reflection sheet itself is made of, for example, a glass sheet or a resin sheet with glass beads using a binder. Therefore, the boundary between the binder and the glass beads does not become compatible with the rubber molded product and does not adhere sufficiently. Further, since the reflection sheet and the rubber molded product are different, it is difficult to follow the expansion and contraction of the rubber. Therefore, the reflection sheet and the rubber molded product may be separated from each other, and there is a problem in durability. In addition, when designing a glowing portion by using characters, figures, symbols, and the like, it is necessary to punch the reflection sheet into a desired shape, which is very troublesome and costly.

[0004] As a recursive transfer sheet , for example, Japanese Utility Model Publication No. 23440/1990, a stretchable, heat-resistant film layer is provided with a thermoplastic release layer and a printing ink layer containing a rubber component. Are disclosed. This recursive transfer sheet is applied to the molded rubber half-molded product before vulcanization, vulcanization molding is performed with the film layer attached, and then the film is peeled off. The gloss of the ink is transferred to the ink layer and gloss is imparted to the ink, and the film layer follows the deformation of the rubber molded product during vulcanization, so that it is possible to prevent the ink layer from wrinkling and displacing. Things.

Therefore, if a recursive transfer sheet is prepared by mixing glass beads into the release layer and is adhered to a rubber molded product, it can be adhered to the rubber molded product with good followability and can be printed. It seems that you can gain design freedom. However, when glass beads are actually mixed into the release layer and laminated on the film layer, the glass beads do not line up neatly in the release layer, the depth at which the glass beads are fixed is not constant, and the glass beads Often overlap. Therefore, this recursive transfer sheet
There is a problem in that a mark transferred using such a method cannot obtain a very high luminance.

The present inventors have conducted various experiments and studies to solve this problem, and as a result, have completed the present invention. The purpose of the present invention is to provide a layer of pressure-sensitive adhesive in a laminated structure to uniformly arrange beads having a recursive property in a single layer state, and to further search these beads by vulcanization. , A recursive transfer sheet that can be adhered to rubber molded products reliably and with good followability, and that can reflect incident light from a wide range of angles with high brightness while obtaining design freedom by printing Passing
Another object of the present invention is to provide a rubber molded product on which transfer is performed using the same .

A further object of the present invention is to provide a recursive transfer sheet capable of reflecting with higher brightness by exfoliating the above-mentioned adhesive layer after vulcanization and exposing the beads neatly.
An object of the present invention is to provide a rubber molded product to which transfer has been performed using the same .

[0008]

According to a first aspect of the present invention, there is provided a recursive transfer sheet having a recursive portion for reflecting light, and vulcanizing and molding a rubber semi-molded product.
A recursive transfer sheet used in the step of producing a retro-portion, and an ink having a rubber component, a binder having a light transmitting property in rubber, unilamellar and have a recursive
Beads arranged uniformly in state, it is formed by laminating a rubber-based adhesive having heat resistance and light-stretchability and a and a release sheet which is not vulcanized has heat resistance in order, the adhesive
When the agent receives the compressive force during vulcanization, it spreads thinly and the beads stick.
The head comes out in the agent layer, and the ink layer reduces the compressive force during vulcanization.
When receiving, it is configured to be concave along the curved surface of the bead
It is characterized in that was. The rubber mentioned here includes a rubber mainly composed of natural rubber or synthetic rubber, and an elastomer. The beads include glass beads and resin beads.

This recursive transfer sheet is adhered to the rubber half-molded product before vulcanization on the ink side, and then the whole is vulcanized, whereby the ink, binder and adhesive are vulcanized, and then the release sheet is peeled off. Thus, a recursive mark transferred to the rubber molded product is formed. In this case, the beads are sandwiched between the pressure-sensitive adhesive layer and the binder layer, and these are adhered to the rubber molded article by the ink layer reliably and with good followability. Also, by attaching the beads on the adhesive in the manufacturing stage, the beads are uniformly arranged in a single layer state. Then, since the pressure-sensitive adhesive laminated thereon is thinly extended by the compressive force at the time of vulcanization, the beads come out of the head. Furthermore, since the semi-molded rubber product before vulcanization is soft,
The beads dig and the ink layer is correspondingly recessed along the curved surface of the beads. Therefore, the beads exhibit excellent regression to light, exhibit high brightness, and light incident on the beads in a wide angle range is reflected at the boundary with the ink layer. Further, the ink, the binder, the beads, and the adhesive can be formed into a free planar shape at the time of lamination by using a method such as printing, so that the degree of freedom in design can be obtained. Moreover, since the pressure-sensitive adhesive layer covering the beads exerts a buffering action, the beads are protected from external force.

[0010] The recursive transfer sheet according to the second aspect reflects light.
Vulcanizing and molding rubber semi-molded products.
Transfer sheet used in the process of manufacturing rubber molded products
Wherein the recursive portion has an ink having a rubber component,
With rubber-based translucent binder and recursive
Uniformly arranged beads in a single layer, heat resistant and vulcanized
Non-adhesive, stretchable, heat-resistant and vulcanized
And a release sheet that is not
When the release sheet is peeled off after the sulfurization, the adhesive adheres to the release sheet.
Peeling off the beads and exposing the beads from the binder,
When the ink layer receives the compressive force during vulcanization, it follows the curved surface of the beads.
It is characterized in that it is configured to be recessed .

[0011] This recursive transfer sheet is applied to the rubber semi-molded product before vulcanization on the ink side, and then the whole is vulcanized, whereby the ink and the binder are vulcanized. A recursive mark is transferred to the molded article. In this case, the beads adhere to the rubber molded product reliably and with good followability by the binder layer and the ink layer. Also, by attaching the beads on the adhesive in the manufacturing stage, the beads are uniformly arranged in a single layer state. Then, when the release sheet is peeled off, the adhesive is peeled off from the beads on the release sheet, so that the beads are clearly exposed. In addition, since the rubber semi-molded product before vulcanization is soft, the beads penetrate, and accordingly, the ink layer is concavely formed along the curved surface of the beads. Therefore, it exhibits excellent regression to light, exhibits extremely high luminance, and reflects light incident on the beads in a wide angle range at the boundary with the ink layer.
Further, the ink, the binder, the beads, and the adhesive can be formed into a free planar shape at the time of lamination by using a method such as printing, so that the degree of freedom in design can be obtained.

[0012] The recursive transfer sheet according to the third aspect is the first aspect.
Alternatively, a rubber-based adhesive is further laminated on the ink layer of the recursive transfer sheet described in 2.

In this case, the adhesive strength of the recursive transfer sheet to the rubber molded article is improved by the adhesive. In this case, the recursive transfer sheet is stuck to the rubber semi-molded product before vulcanization with an adhesive.

According to the fourth aspect of the present invention, there is provided the recursive transfer sheet according to the first aspect.
(3) The ink layer of the recursive transfer sheet according to any one of (1) to (3), wherein a silver-based ink is included.

In this recursive transfer sheet , the brightness of the beads is further improved because the silver-based ink layer reflects light more strongly than the other color inks.

The rubber molded product according to claim 5 is a rubber half-cured product before vulcanization.
Applying the recursive transfer sheet of claim 1 to the surface of the ink
And then vulcanize the whole, then release sheet
A rubber molded product that has been transferred by peeling
Inducible part is rubber-based ink and rubber-based translucent
And a recurring single layer
A line of beads and a rubber-based material with heat resistance and translucency
It is formed by laminating an adhesive in order, and the adhesive is vulcanized.
Due to the compressive force of the time, the beads extend thinly and the beads adhere to the adhesive layer.
The head out and the ink layer receives the compressive force during vulcanization
Characterized in that it is concave along the curved surface of the
Molding.

[0017] The rubber molded product according to claim 6 is a rubber half-mold before vulcanization.
Applying the recursive transfer sheet of claim 2 to the surface of the ink
And then vulcanize the whole, then release sheet
A rubber molded product that has been transferred by peeling
Inducible part is rubber-based ink and rubber-based translucent
And a recurring single layer
It is formed by sequentially laminating beads in a row,
The ink layer is exposed from the binder, and the ink layer
That the bead is concave along the curved surface of the bead.
It is a sign.

The rubber molded product according to claim 7 is the same as the one described in claim 5 or
The rubber molded product according to claim 6, wherein
4. The recursive transfer according to claim 3, in place of the recursive transfer sheet.
Paste the copy sheet on the adhesive side, then vulcanize the whole
After that, transfer is performed by peeling off the release sheet.
Rubber molded product, the ink layer in the recursive part
A rubber adhesive layer is formed inside.

[0021] The rubber molded product of claim 8 is a rubber molded product according to claims 5 to
7. The rubber molded product according to any one of the items 7
The ink layer contains a silver-based ink.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, recursive transfer sheet according to the present invention
Describing the embodiments of the over bets, but does not present invention is not limited by these embodiments. FIG. 1 shows a recursive transfer sheet m according to the first embodiment. The recursive transfer sheet m becomes a recursive mark M by being transferred to a predetermined portion of the rubber molded product G such as a sidewall of a tire.

The recursive transfer sheet m of the first embodiment has a recursive portion 10 for reflecting light. The recursive portion 10 includes a rubber-based adhesive 11, an ink 12 having a rubber component, and a rubber-based translucent binder 13.
And a recursive bead 14, a heat-resistant and translucent rubber-based pressure-sensitive adhesive 15, and a release sheet 16 that has elasticity and heat resistance and is not vulcanized. I have.

The rubber-based adhesive 11 is preferably formed so as to surround the periphery of the layer of the ink 12, the layer of the binder 13, and the like, in that the adhesiveness of the recursive transfer sheet m to the rubber molded product G is enhanced. . In addition, the glass beads 14 may be resin beads. In short, any glass beads may be used as long as they exhibit light regression, that is, a function of reflecting light. The adhesive 15 preferably has elasticity. The release sheet 16 is exemplified by, for example, a resin sheet.

When producing the above-mentioned recursive transfer sheet m,
Adhesive 11, ink 12, binder 13, and adhesive 1
5 is laminated by a known printing technique such as screen printing. Further, the glass beads 14 are arranged uniformly. In that case, the ink 12, the binder 13, and the glass beads 14 are laminated so as to represent desired characters, figures, symbols, and the like. As a result, the recursive transcription seed
Tom m has a recursive portion 10 and a non-recursive portion 20 having no glass beads 14 and laminated with ink 12 or the like. Of course, it may be formed solid without forming characters or the like. In that case, the recursive portion 10 is formed on the entire surface of the recursive transfer sheet m. This recursive transcription
When shipping the sheet m, it is desirable that a release paper (not shown) be stuck on the rubber-based adhesive 11.

[0024] When using the recursive transfer sheet m the above embodiment, as shown in FIG. 1, the recursive transfer sheet m
Is adhered to the rubber semi-molded product g before vulcanization on the surface of the rubber adhesive 11, and then the whole is vulcanized, so that the rubber adhesive 11,
When the ink 12, the binder 13, and the adhesive 15 are vulcanized, and then the peeling sheet 16 is peeled off, a recursive mark M transferred to the rubber molded product G is formed as shown in FIG. In that case, the glass beads 14 are sandwiched between the layer of the adhesive 15 and the layer of the binder 13, and these are adhered to the rubber molded product G by the layer of the ink 12 reliably and with good followability. Therefore, the above-mentioned recursive transfer sheet m is a rubber molded product G
Hardly peels off even when it expands and contracts, and shows excellent durability. Further, by attaching the glass beads 14 on the adhesive 15 in the manufacturing stage, the glass beads 14 are uniformly arranged in a single layer state. Then, since the adhesive 15 laminated thereon is thinly extended by the compressive force at the time of vulcanization, as shown in FIGS. 2 and 3, the glass beads 14 protrude. Further, since the rubber semi-molded product g before vulcanization is soft, as shown in FIGS. 2 and 3, the glass beads 14 bite, and accordingly, the layer of the ink 12 is concaved along the curved surface of the glass beads 14. Is done. Therefore, it exhibits excellent regression to light, exhibits high brightness, and has a wide angle range of glass beads 14.
Is reflected at the boundary with the layer of the ink 12 or the like. Also, an adhesive 11, an ink 12, a binder 13,
Both the pressure-sensitive adhesive 15 and the pressure-sensitive adhesive 15 can be formed into a free planar shape at the time of lamination by using a technique such as printing, so that the degree of freedom in design is obtained. Further, a process such as punching is not required at all, so that workability can be improved and cost can be reduced. Moreover, since the glass beads 14 are covered with the adhesive 15 and the layer of the adhesive 15 covering the glass beads 14 exhibits a buffering action, the glass beads 14 are protected from external force.

FIGS. 4 to 6 show a recursive transfer sheet m according to the second embodiment. Retro-transcription sea of the second embodiment
Tom m also has the same structure as in the first embodiment, but differs only in the composition of the pressure-sensitive adhesive, so this is shown as pressure-sensitive adhesive 15 ′, and the same other elements as those in the first embodiment are the same. The reference numerals are attached and the detailed description is omitted. Further, the respective signs of the recursive transfer sheet m, the recursive mark M, the rubber semi-molded product g, and the rubber molded product G follow as they are.

That is, as shown in FIG. 4, the recursive portion 10 of the recursive transfer sheet m of the second embodiment comprises a rubber-based adhesive 11, an ink 12 having a rubber component, and a rubber-based light-transmitting material. Binder 13 having resilience, beads 14 having recursive properties, heat-resistant and non-vulcanized pressure-sensitive adhesive 1
5 'and a release sheet 16 having elasticity and heat resistance and not being vulcanized are sequentially laminated. The pressure-sensitive adhesive 15 'does not necessarily need to have a light-transmitting property.

Points to note regarding the rubber adhesive 11, the ink 12, the binder 13, the glass beads 14, and the release sheet 16 are the same as those in the first embodiment. It is preferable that the pressure-sensitive adhesive 15 ′ has no rubber component, and has elasticity and is easily adapted to the release sheet 16. This is because, as described later, when the release sheet 16 is peeled off after vulcanization, the release sheet 16 follows the release sheet 16 so that it can be satisfactorily peeled off from the glass beads 14.

The method of manufacturing the above-mentioned recursive transfer sheet m and points to be noted at that time are the same as those in the first embodiment.

[0029] When using the recursive transfer sheet m the above embodiment, as shown in FIG. 4, the recursive transfer sheet m
Is adhered to the rubber semi-molded product g before vulcanization on the surface of the rubber adhesive 11, and then the whole is vulcanized, so that the rubber adhesive 11,
When the ink 12 and the binder 13 are vulcanized and then the peeling sheet 16 is peeled off, a recursive mark M transferred to the rubber molded product G is formed as shown in FIG. In that case,
Glass beads 14 are a layer of binder 13 and ink 12
With this layer, it adheres to the rubber molded product G reliably and with good followability. Therefore, the above-mentioned recursive transfer sheet m is hardly peeled off even when the rubber molded article G expands and contracts, and shows excellent durability. Further, by attaching the glass beads 14 on the adhesive 15 ′ at the manufacturing stage, the glass beads 14 are uniformly arranged in a single layer state. Moreover, when the release sheet 16 is subsequently peeled off, the adhesive 15 ′ is peeled off from the glass beads 14 with respect to the release sheet 16, as shown in FIGS. 5 and 6.
The glass beads 14 are exposed neatly. Further, since the rubber semi-molded product g before vulcanization is soft, as shown in FIGS. 5 and 6, the glass beads 14 bite, and accordingly, the layer of the ink 12 is depressed along the curved surface of the glass beads 14. Is done. Therefore, it exhibits excellent regression to light, exhibits high brightness, and has a wide angle range of glass beads 14.
Is reflected at the boundary with the layer of the ink 12 or the like. Further, the rubber-based adhesive 11, the ink 12, the binder 13, the glass beads 14, and the adhesive 15 ' can all be formed into a free planar shape at the time of lamination by using a method such as printing, so that the degree of freedom of design is increased. can get. And
No processing such as punching is required at all, and workability can be improved and cost can be reduced.

In any of the above embodiments, when a silver-based ink is included in the ink 12 layer, the silver-based ink layer reflects light more strongly than the other color inks.
The brightness of the glass beads 14 is further improved.

In each of the above embodiments,
A rubber-based adhesive 11 was further laminated on the ink layer. In this case, the adhesive 11 causes the recursive transfer screen.
Although the adhesive strength of the rubber m to the rubber molded article G is improved, it may not be necessary to laminate the adhesive 11 depending on the composition of the rubber molded article G. Therefore, in the present invention, whether to use the adhesive 11 is optional. When not using an adhesive,
The recursive transfer sheet is attached to the rubber semi-molded product before vulcanization on the surface of the ink layer.

[0032]

EXAMPLE Next, an example belonging to the second embodiment will be described, but the present invention is not limited by this example. In this embodiment, the rubber adhesive 11 is N
A mixture of R, SBR, and the like and additives such as sulfur and zinc white according to the composition of the rubber molded product G on the mating side was used. The ink 12 was prepared by kneading a silver pigment into synthetic rubber, and used to print characters and pictures. The glass beads 14 were buried in an adhesive 15 ′ in a volume of at least half. This recursive transfer sheet m was affixed to a rubber half-molded product g after molding and before vulcanization, and was heated by a mold at 170 ° C. for 3 to 15 minutes to be vulcanized. The resulting recursive transfer sheet m was securely and well adhered to the rubber molded product G, and excellent durability was obtained. In addition, it has high luminance and reflects incident light from a wide angle range. Specifically, when a test was performed based on the reflection performance test defined in JIS Z 9117, a value comparable to the first class was obtained.

In each of the above embodiments, the recursive transfer sheet m adhered to the sidewall of the tire has been exemplified. However, the adhesion destination of the recursive transfer sheet of the present invention is not limited to a tire, and natural rubber or Any rubber may be used as long as it is a rubber mainly made of synthetic rubber or a rubber molded article formed of an elastomer.

[0034]

[Effect of the Invention] recursive transfer of claim 1 as described above
The plate can be adhered to the rubber molded product reliably and with good followability, it can demonstrate excellent durability, and it can effectively protect the beads from external force, while improving the workability and reducing the cost while improving the design. A degree of freedom can be obtained, and high-luminance can be reflected with respect to incident light from a wide angle range. Therefore, it is suitable for transferring to a rubber molded article such as a tire or a security article for a highway.

The recursive transfer sheet according to the second aspect can reflect with higher luminance than the recursive transfer sheet according to the first aspect.

According to the third aspect, the recursive transfer sheet can be further firmly adhered to the rubber molded product by the adhesive.

According to the fourth aspect, the brightness of the beads can be further improved by the reflection of light in the silver-based ink layer.

The rubber molded product according to the fifth aspect is a recursive transfer sheet.
In addition to being able to adhere reliably and with good followability, exhibiting excellent durability, it is excellent in design, high in brightness, and capable of reflecting incident light from a wide angle range. Further, the beads can be effectively protected from external force.

The rubber molded product according to claim 6 is a recursive transfer sheet.
Adheres reliably and with good followability, demonstrating excellent durability
It has excellent design, high brightness and
Can reflect incident light from a wide range of angles
You. Even higher brightness than the rubber molded product of claim 5
Can be reflected.

The rubber molded product according to claim 7 is characterized in that
Recursive transfer with adhesive compared to the rubber molded product of claim 6
The sheet can be more firmly bonded.

According to the eighth aspect, the silver-based ink layer
The brightness of beads by reflection of light at
be able to.

[Brief description of the drawings]

FIG. 1 shows a recursive transcription sheet according to a first embodiment of the present invention.
Is a schematic cross-sectional view showing the door in a state of being adhered to the rubber semi-molded article before vulcanization.

FIG. 2 is a schematic cross-sectional view showing a state in which a release sheet is peeled off after the recursive transfer sheet of the first embodiment is vulcanized together with a rubber semi-molded product.

FIG. 3 is a schematic sectional view showing an enlarged view of FIG. 2;

FIG. 4 is a diagram corresponding to FIG. 1 according to a second embodiment.

FIG. 5 is a diagram corresponding to FIG. 2 according to a second embodiment.

FIG. 6 is a diagram corresponding to FIG. 3 relating to the second embodiment.

[Explanation of symbols]

m Recursive transfer sheet M Recursive mark g Rubber semi-molded product G Rubber molded product 10 Recursive part 11 Adhesive 12 Ink 13 Binder 14 Glass beads (beads) 15 Adhesive (a rubber-based material having heat resistance and translucency) 15 'adhesive (heat resistant and not vulcanized) 16 release sheet 20 non-recursive part

Continuation of the front page (56) References JP-A-48-52868 (JP, A) JP-A-9-1990 (JP, A) JP-A-5-139096 (JP, A) JP-A-6-246901 (JP) , A) Japanese Utility Model Showa 59-188465 (JP, U) Japanese Utility Model Showa 63-23098 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B44C 1/165-1/17

Claims (8)

(57) [Claims] 1. A rubber half having a recursive portion for reflecting light.
Used in the process of vulcanizing molded products to produce rubber molded products
Is a recursive transfer sheet, retro-portion, and an ink having a rubber component, a binder having a light transmitting property in rubber, a bead arranged uniformly in a single layer state have a recursive resistance, heat resistance And a translucent rubber-based pressure-sensitive adhesive, and a release sheet that has elasticity and heat resistance and is not vulcanized are sequentially laminated, and the pressure-sensitive adhesive reduces the compressive force during vulcanization.
The beads extend thinly and the beads emerge from the adhesive layer
When the ink layer receives the compressive force during vulcanization, the curved surface of the beads
A recursive transfer sheet characterized by being formed so as to be concaved along . 2. A rubber half having a recursive portion for reflecting light.
Used in the process of vulcanizing molded products to produce rubber molded products
Wherein the recursive portion is made of rubber
Ink having a component and a rubber-based translucent binder
And beads that are uniformly arranged in a single layer with recursive properties
And a heat-resistant and non-vulcanized pressure-sensitive adhesive,
And heat-resistant and non-vulcanized release sheet.
When the release sheet is peeled off after vulcanization,
The adhesive sticks to the release sheet and peels off from the beads.
Is exposed from the binder, and the ink layer reduces the compressive force during vulcanization.
When receiving, it is configured to be concave along the curved surface of the bead
Recursive transfer sheet, characterized in that the. 3. On the ink layer, further retro-transcription Sea of claim 1 or 2 wherein the adhesive rubber are laminated
G. 4. The recursive transfer sheet according to claim 1, wherein the ink layer contains a silver-based ink. 5. The method according to claim 1, wherein the rubber semi-molded product before vulcanization is used.
Paste the transfer sheet on the ink side, and then
The transfer is performed by vulcanizing and then peeling off the release sheet.
Rubber molded product, the recursive part has a rubber component
Ink and rubber-based translucent binder
And beads that are uniformly arranged in a single layer state with recursive properties,
Laminate the rubber adhesive with heat and translucency in order
The adhesive is compressed by the compressive force during vulcanization and becomes thin.
The beads stretch out and the heads out in the adhesive layer and the ink
The layer is concave along the curved surface of the beads under the compressive force during vulcanization.
A rubber molded product characterized by being made. 6. The recursive method according to claim 2, wherein the rubber semi-molded product before vulcanization is used.
Paste the transfer sheet on the ink side, and then
The transfer is performed by vulcanizing and then peeling off the release sheet.
Rubber molded product, the recursive part has a rubber component
Ink and rubber-based translucent binder
And beads that are uniformly arranged in a monolayer state with recursion
The beads are exposed from the binder.
The ink layer receives the compressive force during vulcanization and the curved surface of the beads
A rubber molded product characterized in that it is concave along the line. 7. The rubber molded product according to claim 5 or 6,
Instead of the recursive transfer sheet according to claim 1 or 2.
And applying the recursive transfer sheet according to claim 3 to an adhesive surface.
And then vulcanize the whole, then release sheet
A rubber molded product transferred by peeling off
Rubber adhesive layer inside the ink layer in the recursive part
A rubber molded product on which is formed. 8. The ink layer contains a silver-based ink.
The rubber according to any one of claims 5 to 7,
Molding.