JPH0733639U - Adhesive film for window pasting - Google Patents

Abstract

(57) [Summary] [Purpose] Attach it to window glass of automobiles and houses to block light,
A window-adhesive film for preventing scattering and decoration, which has a beautiful decorative effect never seen before. [Structure] The release film 2, the pressure-sensitive adhesive layer 3, and the plastic film 4 are sequentially laminated. A large number of reflective pieces 1 ... Are scattered between the adhesive layer 3 and the plastic film 4. Both or one of the adhesive layer 3 and the plastic film 4 has transparency. The pressure-sensitive adhesive layer 3 releasably adheres to the release surface of the release film 2 and firmly adheres to the inner surface of the plastic film 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an adhesive film for window attachment.

[0002]

[Prior art]

 Conventionally, a colored or colorless film composed of a plastic film and a pressure-sensitive adhesive layer has been widely used as a film to be attached to a window glass of an automobile, a house or the like for light shielding, scattering prevention, decoration and the like.

[0003]

[Problems to be solved by the device]

 However, the conventional films as described above have various kinds of colors and densities, but have a lack of decorativeness.

Therefore, an object of the present invention is to solve the above-mentioned problems and provide an adhesive film for window sticking, which has a beautiful decorative effect that has never been seen.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the adhesive film for window bonding according to the present invention comprises a release film, an adhesive layer, and a plastic film, which are sequentially laminated, and the adhesive layer and the plastic film are combined. A large number of reflective small pieces are scattered between them, and further, either or both of the pressure-sensitive adhesive layer and the plastic film have transparency.

[0006]

[Action]

 When the release film is peeled off from the window sticking adhesive film of the present invention, the adhesive layer and the reflective pieces are held on the plastic film, and the adhesive surface of the adhesive layer is exposed. A laminate comprising a plastic film, an adhesive layer and a reflective piece between them can be attached to the window glass of an automobile or a house with the exposed adhesive surface facing the window glass.

When both the pressure-sensitive adhesive layer and the plastic film have a see-through property in the above-mentioned stuck state, the reflective small piece can be seen from both sides of the window glass. When only the adhesive layer has a see-through property, the reflective particles can be seen from the adhesive layer side, but the reflective particles cannot be seen from the plastic film side. On the contrary, when only the plastic film has a see-through property, the reflective small pieces can be seen from the plastic film side, but the reflective small pieces cannot be seen from the adhesive layer side.

[0008]

【Example】

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

FIG. 1 shows a window-attaching pressure-sensitive adhesive film of the present invention. This pressure-sensitive adhesive film is used for shielding light when attached to a window glass of an automobile, a house, etc., or for preventing scattering when the glass is broken, or It is intended to be used for decoration, and the peeling film 2, the pressure-sensitive adhesive layer 3 and the plastic film 4 are sequentially laminated, and a large number of reflective layers are provided between the pressure-sensitive adhesive layer 3 and the plastic film 4. Small pieces 1 ... are scattered.

Thus, the pressure-sensitive adhesive layer 3, the plastic film 4, and the reflective small pieces 1 between the adhesive layer 3 constitute a sticking laminated body 7. That is, at the time of use, the peeling film 2 can be peeled off and the sticking laminate 7 can be stuck to the window glass.

The release film 2 is formed by coating the release surface side of the polyester film, that is, the pressure-sensitive adhesive layer 3 side with silicone to provide release properties. Note that in FIG. 1, the thickness dimension is shown in a larger scale than the other dimensions for easy understanding.

The pressure-sensitive adhesive layer 3 is a non-fluid layer having a pressure-sensitive adhesive property, and releasably adheres to the peeling surface of the peeling film 2 and firmly adheres to the inner surface of the plastic film 4.

The reflective small pieces 1 ... are thin plate small pieces that are subjected to light reflecting treatment on both front and back surfaces, and may be called “glitter” by those skilled in the art. Specifically, as the reflective small pieces 1 ..., a product name “HOLO FLAK E” manufactured by Spectratech, Inc. in the United States is used. According to this, the color of the reflected light changes depending on the viewing angle, so that a beautiful decorative effect can be obtained.

Further, the reflective small pieces 1 ... Are disposed on the one surface side of the pressure-sensitive adhesive layer 3--the plastic film 4 side--in a slightly embedded manner, and the one surface of the reflective small pieces 1 ... One side of 3 is made flush. Therefore, although the reflective small pieces 1 ... Are scattered between the adhesive layer 3 and the plastic film 4, the adhesive layer 3 and the plastic film 4 are flatly overlapped without curving in an uneven shape. Moreover, the adhesive layer 3, the plastic film 4, and the reflective small pieces 1 ... Are parallel to each other.

The pressure-sensitive adhesive layer 3 and the plastic film 4 are colorless and transparent. That is, both the adhesive layer 3 and the plastic film 4 are transparent. Therefore, in the laminated body for sticking 7, the reflective small pieces 1 ... Can be seen through from both surfaces, and the part excluding the reflective small pieces 1 ... Is transparent.

FIG. 4 is a perspective view of this adhesive film as seen from the plastic film 4 side, and the reflective small pieces 1 ... Are seen through the plastic film 4. As is clear from the figure, the reflective small pieces 1 ... Are scattered in a natural distribution state.

Thus, this adhesive film is manufactured by the following manufacturing method. First, as shown in FIG. 2, an adhesive solution 9 containing a large number of reflective small pieces 1 ... In a dispersed state is applied to one surface of the plastic film 4. Specifically, the pressure-sensitive adhesive solution 9 is applied so that the thickness after drying becomes a predetermined thickness within the range of about 10 μm to 100 μm.

The adhesive solution 9 is adhered with a stirrer or the like (not shown) so that the weight of the reflective pieces 1 is in the range of about 0.1 to 10 when the weight of the adhesive is 100. The reflective particles 1 ... Are dispersed in the agent, and are manufactured in advance before the coating.

In addition, in this example, 3 parts of Nitsusetsu CK-101 (manufactured by Nippon Carbide Industry Co., Ltd.) was added to Nisetsu PE-118 (manufactured by Nippon Carbide Industry Co., Ltd.) at a predetermined ratio. Disperse the reflective small pieces 1 ... to form an adhesive solution 9 and apply it to a plastic film 4 made of a polyester film having a thickness of about 25 μm by a doctor coater so that the thickness after drying becomes about 15 μm. Was applied.

As described above, immediately after the adhesive solution 9 is applied to the plastic film 4, the reflective particles 1 ... Are present in a floating state in the adhesive solution 9 as shown in FIG. It is considered that the reflective small pieces 1 ... Are attracted to the plastic film 4 side by a force such as gravity or electrostatic force, and one surface of the reflective small pieces 1 ... comes in close contact with the inner surface of the plastic film 4 as shown in FIG.

After that, when the pressure-sensitive adhesive solution 9 is dried, the pressure-sensitive adhesive having fluidity becomes the non-fluidic pressure-sensitive adhesive layer 3.

Thereby, the reflective pieces 1 ... Can be positioned between the plastic film 4 and the adhesive layer 3.

As the reflective pieces 1, various kinds having a diameter of 0.1 mm to several mm can be used, but in the present embodiment, those having a diameter of 1 mm or less are used. Preferred. That is, when the diameter is larger than 1 mm, the reflective small pieces 1 ... May not be drawn to the plastic film 4 side, and the position and posture of the reflective small pieces 1 ... May not be constant. .

Then, the release film 2 is attached to the adhesive surface side of the adhesive layer 3 in a dried state, whereby the adhesive film shown in FIG. 1 is completed. In this example, the release film 2 having a thickness of about 38 μm was attached and then left at 40 ° C. for 72 hours.

In order to use this pressure-sensitive adhesive film, as shown in FIG. 5, the peeling film 2 is removed from the sticking laminate 7 including the plastic film 4, the pressure-sensitive adhesive layer 3, and the reflective small pieces 1. After peeling off, as shown in FIG. 6, the sticking laminated body 7 can be stuck to one surface 11 of the window glass 8 of an automobile, a house or the like.

Before peeling off the release film 2 from the sticking laminate 7, it is also preferable to cut this adhesive film into a predetermined shape such as letters, figures and symbols.

Although not shown, the adhesive laminate 7 may be attached to the one surface 11 of the window glass 8 at the same time while peeling off the release film 2 from the adhesive laminate 7.

By sticking the sticking laminate 7 to the window glass 8 as described above, the reflective small pieces 1 ... Can be seen from both the one surface 11 side and the other surface 12 side of the window glass 8. Since the color of the reflected light changes with the angle at which the small reflective pieces 1 are viewed, a beautiful decorative effect can be obtained, as if the stars 8 of seven colors were scattered on the window glass 8. Further, by sticking the sticking laminated body 7 on the entire surface of the window glass 8, it is possible to prevent scattering of fragments when the window glass 8 is broken.

Further, since the reflective small pieces 1 ... Are in a posture parallel to the window glass 8, it is possible to prevent the variation of the reflection angle of light and look more beautiful.

Next, FIG. 7 shows another embodiment of the window sticking adhesive film of the present invention. In this case, the reflective small pieces 1 ... Attach to the one surface side of the adhesive layer 3 in a slightly protruding shape. ing. Then, the plastic film 4 is curved in an uneven shape corresponding to the reflective small pieces 1 protruding from the adhesive layer 3. The adhesive layer 3 and the plastic film 4 are colorless and transparent.

Thus, this adhesive film is manufactured as follows. First, as shown in FIG. 8, an adhesive solution is applied to the release surface 6 of the release film 2 to form an adhesive solution layer 5. Specifically, the pressure-sensitive adhesive solution layer 5 is applied so that the thickness after drying becomes a predetermined thickness within the range of about 10 μm to 50 μm.

In this example, the pressure-sensitive adhesive was applied so that the thickness of the pressure-sensitive adhesive solution layer 5 after drying was about 15 μm. As the adhesive, a mixture of 3 parts of Nitsusetsu CK-101 (manufactured by Nippon Carbide Industry Co., Ltd.) to Nisetsu PE-118 (manufactured by Nippon Carbite Industry Co., Ltd.) was used. According to this, it is possible to form the pressure-sensitive adhesive layer 3 which is transparent and has sufficient pressure-sensitive adhesive force to adhere the reflective small pieces 1 ... To the surface of the object to be decorated.

After that, as shown in FIG. 9, a large number of the reflective small pieces 1 ... Are sprinkled in the undried state of the pressure-sensitive adhesive solution layer 5. Specifically, the reflective small pieces 1 ... Are sprayed by a spraying means (not shown) for spraying the reflective small pieces 1 ... Sparsely. As a result, each of the reflective pieces 1 ... Can be attached to the surface of the pressure-sensitive adhesive solution layer 5 in a parallel posture with a natural distribution.

After the above-mentioned spraying, the release film 2 having the adhesive solution layer 5 formed thereon is passed through a drying oven to dry the adhesive solution layer 5. As a result, the adhesive solution layer 5 having fluidity becomes the adhesive layer 3 having no fluidity, and the reflective pieces 1 can be firmly attached.

It should be noted that a large number of the reflective small pieces 1 ... May be sprinkled in the dry state of the pressure-sensitive adhesive solution layer 5. That is, in that case, after the release film 2 and the pressure sensitive adhesive solution layer 5 in the state of FIG. 8 are passed through a drying oven, the reflective small pieces 1 ... Are sprinkled. By doing so, it is possible to prevent the reflective small pieces 1 ... from sticking into the pressure-sensitive adhesive layer 3 in a slanted or right-angled manner when the reflective small pieces 1 ... Are sprinkled.

Next, as shown in FIG. 10, the plastic film 4 is attached to the adhesive surface side of the adhesive layer 3 in a dried state. Specifically, a plastic film 4 made of soft vinyl chloride is attached to the adhesive layer 3 and left at 40 ° C. for 72 hours.

In this way, the adhesive film shown in FIG. 7 is completed. Then, in order to use this adhesive film, as shown in FIG. 11, from the peeling film 2, a sticking laminate 7 composed of a plastic film 4, an adhesive layer 3 and a reflective piece 1 between them is formed. After peeling off, as shown in FIG. 12, the sticking laminated body 7 can be stuck to the one surface 11 of the window glass 8.

Alternatively, the sticking laminate 7 can be peeled from the release film 2 and at the same time, the sticking laminate 7 can be stuck to one surface 11 of the window glass 8.

In this way, the window glass 8 can be beautifully decorated with stars.

The window-attaching pressure-sensitive adhesive film of the present invention may have various modes other than the above-mentioned embodiments. For example, as the reflective small pieces 1 ..., those which reflect only a single color such as gold or silver may be used. Further, as the shape of the reflective piece 1, various shapes such as a circle, a triangle, a quadrangle, a polygon such as a pentagon and a hexagon, or an irregular shape can be used.

As the pressure-sensitive adhesive of the pressure-sensitive adhesive layer 3, those other than those described above can be freely used. For example, in the case where the sticking laminated body 7 is stuck to the entire surface of the window glass 8 on the indoor side mainly for the purpose of shading and scattering prevention, the sticking agent layer 3 is relatively weak enough to be able to be stuck or wrinkled. It is preferable to use one having adhesive strength. Further, in the case where the sticking laminate 7 is stuck to the surface of the window glass 8 on the outdoor side, the sticking laminate 7 has a relatively strong adhesive strength such that the sticking laminate 7 does not peel off even when exposed to the weather. Preferably.

As the release film 2, one having a release treatment applied to one surface of paper with silicon or the like may be used. By doing so, the manufacturing cost of the adhesive sheet of the present invention can be reduced. It is also preferable to apply a black coating on the release surface side of the release film 2. By doing so, when the adhesive sheet of the present invention is displayed in a store, the reflective strips 1 can be seen well, which can stimulate consumers' purchasing desire.

As the material of the plastic film 4, it is preferable to use polyester in the case of FIG. 1, and it is preferable to use polyethylene or soft vinyl chloride in the case of FIG. 7, but it is preferable to use other plastics. May be used.

Further, as the plastic film 4 and the pressure-sensitive adhesive layer 3, in addition to being colorless and transparent, colored ones having transparency can be freely used. For example, the plastic film 4 may be colored and the adhesive layer 3 may be colorless and transparent, or the plastic film 4 may be colorless and transparent and the adhesive layer 3 may be colored. By doing so, the appearance of the reflective strips 1 is different between when viewed from the surface on the side of the plastic film 4 and when viewed from the surface on the side of the adhesive layer 3, so that the decoration is changed. To get. Also, the effect of shading can be obtained.

Furthermore, only one of the pressure-sensitive adhesive layer 3 and the plastic film 4 may be transparent. That is, when the pressure-sensitive adhesive layer 3 is transparent, the plastic film 4 is colored with a thick color to make it opaque. By doing this, when the sticking laminate 7 is stuck to the inner surface (inner surface) of the window glass of an automobile or a house, the reflective small pieces 1 can be seen from the outside but are opaque from the inside. The plastic film 4 makes it possible to make the reflective small pieces 1 ... Invisible and change the appearance. On the contrary, when the laminated laminate 7 is adhered to the outer surface of the window glass (the surface on the outdoor side), the reflective strips 1 ... Can be seen indoors, but the reflective strips 1 ... Are invisible from the outdoors. . In addition, there is an effect that the inside cannot be seen from the outside.

On the contrary to the above, the plastic film 4 may be made transparent and the adhesive layer 3 may be colored with a thick color to be opaque. In this case, if the adhesive laminate 7 is attached to the inner surface of the window glass, the reflective strips 1 ... Can be seen indoors, but the reflective strips 1 ... Are not visible outdoors. On the other hand, when the adhesive laminate 7 is adhered to the outer surface of the window glass, the reflective strips 1 ... Can be seen from the outside, but the reflective strips 1 ... Can not be seen from the inside.

[0047]

[Effect of device]

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

The peeling film 2 is peeled and removed, and a laminated body (adhesive laminated body 7) composed of the adhesive layer 3, the plastic film 4 and the reflective small pieces 1 between them is applied to a window glass of an automobile or a house. By sticking, the reflective pieces 1 ... Can be seen from both surfaces or one surface of the window glass, and a beautiful decorative effect which has never been obtained can be obtained. Of course, it is possible to provide a light blocking effect and a scattering prevention effect together.

Further, if both or either of the pressure-sensitive adhesive layer 3 and the plastic film 4 are colored while maintaining the transparency, the above respective effects are increased.

[Brief description of drawings]

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

FIG. 2 is an enlarged sectional view illustrating a manufacturing method.

FIG. 3 is an enlarged sectional view illustrating a manufacturing method.

FIG. 4 is a perspective view of a main part.

FIG. 5 is an enlarged cross-sectional view illustrating a method of use.

FIG. 6 is an enlarged sectional view illustrating a method of use.

FIG. 7 is an enlarged cross-sectional view of another embodiment.

FIG. 8 is an enlarged sectional view illustrating a manufacturing method.

FIG. 9 is an enlarged sectional view illustrating a manufacturing method.

FIG. 10 is an enlarged cross-sectional view illustrating a manufacturing method.

FIG. 11 is an enlarged cross-sectional view illustrating a usage method.

FIG. 12 is an enlarged sectional view illustrating a method of use.

[Explanation of symbols]

 1 Reflective Piece 2 Peeling Film 3 Adhesive Layer 4 Plastic Film

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location C09J 7/02 JJF JJH JLE E06B 9/24 A

Claims (1)

[Scope of utility model registration request] 1. A peeling film 2, a pressure-sensitive adhesive layer 3, and a plastic film 4 are sequentially laminated, and a large number of reflective small pieces 1 ... Are scattered between the pressure-sensitive adhesive layer 3 and the plastic film 4. Further, the pressure-sensitive adhesive film for window sticking, wherein both or either one of the pressure-sensitive adhesive layer 3 and the plastic film 4 has transparency.