JP3011390U - Adhesive film for pasting glass windows - Google Patents

Abstract

(57) [Summary] [Objective] To provide an adhesive film for adhering a glass window, which is capable of adding a subtle change in color tone and is excellent in decorativeness. [Structure] An aluminum vapor deposition layer 2 is formed on one surface of an uncolored transparent base film 1. On the outer surface of the aluminum vapor deposition layer 2, a gradation printing layer 3, a transparent colored outer adhesive layer 4,
The release film 5 is sequentially laminated. The visible light transmittance of the aluminum vapor deposition layer 2 is 5% to 70%.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an adhesive film for attaching a glass window.

[0002]

[Prior art]

 Conventionally, as an adhesive film for adhering a glass window to a window glass of an automobile or the like for shading and decoration, for example, an aluminum vapor deposition layer is formed on one surface of an uncolored transparent film and an adhesive layer is formed on the other surface. Known products include those obtained by forming an adhesive layer on a uniformly colored film, and the like.

[0003]

[Problems to be solved by the device]

 However, in the adhesive film as described above, the silver color and other single colors only uniformly appear, and thus the decorativeness is lacking.

Therefore, an object of the present invention is to solve the above problems and provide an adhesive film for adhering a glass window, which is excellent in decorativeness.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the adhesive film for adhering a glass window according to the present invention has an aluminum vapor deposition layer formed on one surface of an uncolored transparent base film, and a gradation printing layer is formed on the outer surface of the aluminum vapor deposition layer. A transparent colored outer pressure-sensitive adhesive layer and a release film are sequentially laminated.

Further, the adhesive film for adhering a glass window according to the present invention comprises a first laminated body formed by forming an aluminum vapor deposition layer on one surface of an uncolored transparent base film and an uncolored transparent auxiliary film. A second laminate comprising a gradation printing layer, a transparent colored outer pressure-sensitive adhesive layer, and a release film, which are sequentially laminated on one surface and an uncolored transparent inner pressure-sensitive adhesive layer is formed on the other surface of the auxiliary film. The inner pressure-sensitive adhesive layer of the second laminate is attached to the outer surface of the aluminum vapor deposition layer of the first laminate.

The visible light transmittance of the aluminum vapor deposition layer is preferably 5% to 70%.

[0008]

[Action]

 By peeling off the release film and adhering the outer pressure-sensitive adhesive layer to the inner surface of the window glass (according to claim 1), the gradation of the gradation printing layer appears to change continuously when viewed from the outside. . In addition, since the color of the gradation printing layer can be seen through the transparent outer adhesive layer, the color of the outer adhesive layer appears strongly in the part where the color of the gradation printing layer is light, and the color of the gradation printing layer appears. In the dark portion, the color of the gradation printing layer appears strongly. In addition, the aluminum vapor deposition layer makes it difficult to see through a relatively dark room from the outside, and a relatively bright room can be often seen from the room.

According to the second aspect, the first laminated body and the second laminated body can be formed separately. When the release film is peeled off and the outer pressure-sensitive adhesive layer is attached to the inner surface of the window glass, the gradation of the gradation printing layer appears to change continuously when viewed from the outside. Furthermore, since the color of the gradation printing layer can be seen through the transparently colored outer adhesive layer, the color of the outer adhesive layer appears strongly in the part where the color of the gradation printing layer is light, and the color of the gradation printing layer is In the dark portion, the color of the gradation printing layer appears strongly. In addition, the aluminum vapor deposition layer makes it difficult to see through a relatively dark room from the outside, and a relatively bright room can be clearly seen from the room.

According to the third aspect, the balance between the difficulty of seeing through a relatively dark room from the outside and the ease of seeing through a relatively bright room from the inside of the room is optimal. .

[0011]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment.

FIG. 1 shows an embodiment of an adhesive film for adhering to a window glass according to the present invention. This adhesive film is formed by forming an aluminum vapor deposition layer 2 on one surface of an uncolored transparent base film 1 On the outer surface of the layer 2, a gradation printing layer 3, a transparently colored outer pressure-sensitive adhesive layer 4, and a release film 5 are sequentially laminated.

The base film 1 is made of a polyester film. The aluminum vapor deposition layer 2 has a visible light transmittance of 5% to 70%.

Here, the gradation printing layer 3 is a layer formed by printing so that the color density changes continuously, and the cross-sectional view of FIG. 1 and the release film 5 of FIG. As shown in the plan view of the peeled state, the color density gradually decreases in the direction of arrow A from one edge to the other edge in the film width direction. That is, the density of color particles continuously changes from dense to sparse from one edge in the width direction to the other edge.

Note that, in FIGS. 1 and 2, the color particles are represented by an infinite number of points for easy understanding, but the color particles are not visible when actually viewed with the naked eye. , Only the change in shade of color is visible. Further, in FIG. 1, only the thickness dimension is enlarged for easy understanding of the whole, but in reality, the whole is formed as a thin strip-shaped sheet body.

FIG. 3 is a graph showing changes in the shade of the color of the gradation printing layer 3, in which the vertical axis represents the color depth and the horizontal axis represents the width (film width) of this adhesive film. The change in shading is shown by the line segment R. As is clear from this graph, the color density gradually decreases from one end to the other end in the film width direction. That is, the color intensity changes continuously.

In order to use this adhesive film for adhering a glass window, for example, the release film 5 can be peeled off and the outer adhesive layer 4 can be attached to the inner surface of the window glass of the car.

As a result, when viewed from the outside of the vehicle, the gradation printing layer 3 can be seen through the window glass and the transparently colored outer adhesive layer 4, so that the color appears to change continuously. Further, in the portion where the color of the gradation printing layer 3 is dark, the color of the gradation printing layer 3 appears stronger than the color of the outer adhesive layer 4. Further, in the portion where the color of the gradation printing layer 3 is light, the color of the outer pressure-sensitive adhesive layer 4 appears strongly.

More specifically, for example, when the color of the gradation printing layer 3 is green and the color of the outer pressure-sensitive adhesive layer 4 is yellow, the vicinity of one edge where the color of the gradation printing layer 3 is dark is Looks green. Then, the color gradually changes to yellow-green toward the middle portion in the width direction. In addition, the gradation printing layer 3 looks yellow near the other edge where the color is light. For this reason, it has excellent decorative properties and is most suitable for automobile window glass.

Further, since the visible light transmittance of the aluminum vapor deposition layer 2 is 5% to 70%, the outside of the vehicle can be seen well, but the inside of the vehicle can hardly be seen from the outside. Moreover, the light-shielding property is also excellent. When the visible light transmittance is lower than 5%, the inside of the vehicle becomes dark and the outside of the vehicle becomes difficult to see. Also, if the visible light transmittance is higher than 70%, the inside of the vehicle can be seen through from the outside of the vehicle and the light shielding property is lacking.

As shown in FIG. 3, the gradation print layer 3 changes in color shade even though the color depth gradually decreases from one edge to the other edge in the film width direction. Other than the above, for example, a change in shading as shown in (a) to (e) of FIG. 4 may be provided.

That is, in FIG. 4A, the color at both edges in the film width direction is darkened and the color is gradually lightened toward the middle portion. In addition, in (b), the color at both edges in the film width direction is lightened, and the color is gradually darkened toward the middle portion. In (c), the colors at both edges and the middle portion in the film width direction are darkened, and the color between the both edges and the intermediate portion is lightened, so that the color is changed into a wavy shape.

Further, in (d), the color of both edges in the film width direction is lightened, and three dark portions and two light portions are provided between them to change the color into a wavy shape. It is a thing. In (e), the color at both edges in the width direction of the film is darkened, the color is gradually lightened in the vicinity of the middle portion, and the middle portion is colorless and transparent. In addition to these, various color changes can be provided.

Next, FIG. 5 shows another embodiment of the adhesive film for sticking window glass of the present invention. This adhesive film has an aluminum vapor deposition layer 2 formed on one surface of an uncolored transparent base film 1. The first laminate 6 formed by the above, the gradation printing layer 3, the transparent colored outer adhesive layer 4 and the release film 5 are sequentially laminated on one surface of the uncolored transparent auxiliary film 8 and the other surface of the auxiliary film 8 is laminated. A second laminated body 7 formed by forming an uncolored transparent inner adhesive layer 9 on the outer surface of the aluminum vapor deposition layer 2 of the first laminated body 6, and the inner adhesive layer 9 of the second laminated body 7 Is attached. The aluminum vapor deposition layer 2 has a visible light transmittance of 5% to 70%.

With the above structure, as shown in FIG. 6, the first laminated body 6 and the second laminated body 7 are separately formed, and then the first laminated body 6 and the second laminated body 7 are bonded to each other. Thereby, this adhesive film can be formed. This makes it easy to manufacture and is ideal for mass production.

In the above-described embodiment, the gradation of the color of the gradation printing layer 3 is configured to change in the film width direction, but it may be configured to change in the longitudinal direction. Further, the base film 1 may be a resin film other than the polyester film.

[0027]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

According to the adhesive film for adhering a window glass according to claim 1, the color can be continuously changed, and when it is used by adhering it to the inner surface of the window glass of an automobile, it gives a delicate color tone. You can easily add beauty with change. In addition, the inside of the vehicle can be seen through and the inside of the vehicle can be hidden.

According to the pressure-sensitive adhesive film for adhering to window glass according to claim 2, the color can be continuously changed, and when it is used by adhering it to the inner surface of the window glass of an automobile, it gives a delicate color tone. You can easily add beauty with change. In addition, the inside of the vehicle can be seen through and the inside of the vehicle can be hidden.

According to the pressure-sensitive adhesive film for adhering to window glass of claim 3, the same effects as those of claim 1 or 2 can be obtained, and the outside of the vehicle can be seen through, and the inside of the vehicle can be seen from the outside of the vehicle. You can surely get both properties of being able to avoid.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of a main part.

FIG. 3 is a graph illustrating a change in color density of a gradation print layer.

FIG. 4 is a graph showing a modified example of a change in color density of the gradation print layer.

FIG. 5 is an enlarged cross-sectional view of another embodiment.

FIG. 6 is an enlarged cross-sectional view illustrating a forming process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base film 2 Aluminum vapor deposition layer 3 Gradation printing layer 4 External adhesive layer 5 Release film 6 1st laminated body 7 2nd laminated body 8 Auxiliary film 9 Internal adhesive layer

Claims (3)

[Scope of utility model registration request] 1. A non-colored transparent base film 1 is provided with an aluminum vapor deposition layer 2 on one surface thereof, and a gradation printing layer 3 and a transparent colored outer pressure-sensitive adhesive layer 4 are formed on the outer surface of the aluminum vapor deposition layer 2.
And a release film 5 are sequentially laminated, and an adhesive film for adhering a glass window. 2. A first laminate 6, which is formed by forming an aluminum vapor deposition layer 2 on one surface of an uncolored transparent base film 1, and a gradation printing layer 3 and transparently colored on one surface of an uncolored transparent auxiliary film 8. A second laminated body 7 in which the outer adhesive layer 4 and the release film 5 are sequentially laminated, and an uncolored transparent inner adhesive layer 9 is formed on the other surface of the auxiliary film 8; An adhesive film for adhering a glass window, wherein the inner pressure-sensitive adhesive layer 9 of the second laminated body 7 is adhered to the outer surface of the aluminum vapor deposition layer 2 of the laminated body 6. 3. The visible light transmittance of the aluminum vapor deposition layer 2 is 5%.
The adhesive film for adhering a glass window according to claim 1 or 2, which has a content of 70%.