JP3027758U - Sticking film for wind glass - Google Patents

Abstract

(57) [Abstract] [Problem] The visible transmittances from the inside and outside are different when pasted so that the inside can be clearly seen when looking at the outside from the inside, but the inside cannot be seen clearly from the outside. In addition, the efficiency of reflection of heat at the outside and the cut rate of ultraviolet rays, infrared rays, etc. are improved so that the penetration of outside light into the inside can be reduced. SOLUTION: A film base 1 that can be attached to the inside of a wind glass G surface of an automobile or the like is formed by providing a pigment coating layer 1B by solvent dyeing on a film base material 1A surface. A pressure-sensitive adhesive layer 2 in which finely powdered metal powder 3 is dispersed and mixed is formed on one side of the film base 1, and a release film 4 is releasably attached to the surface of the pressure-sensitive adhesive layer 2. Further, on the other side surface of the film base 1, a high hardness hard coat layer 5 for weather resistance, impact resistance and the like is formed.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a sticking film for a wind glass, which is stuck to a rear wind glass, a side wind glass of an automobile, a window glass of a building, or the like.

[0002]

[Prior art]

 The window film for removing the reflection of ultraviolet rays etc. to the room is composed of a transparent synthetic resin film that is the base and a laminated structure of an adhesive and a release film. For example, it is affixed to the window glass and the window glass of buildings from the inside. In this case, for the general public, those without a hard coat layer that is easy to apply are provided as the mainstream, and for professional installers, those with the hard coat layer are provided as the mainstream.

[0003]

[Problems to be solved by the device]

 This type of conventional wind film has its color, brightness, etc. set in consideration of the visible transmittance inside and outside the wind glass, the cut ratio of ultraviolet rays and infrared rays that are transmitted from the outside to the inside, etc. Therefore, they have the same visible transmittance and the like when viewed from both front and back. However, for example, when it is applied to the windshield of an automobile and used, it is desirable that there is a difference in the degree of visible transmittance between when the outside is seen from the inside of the automobile and when the inside is seen from the outside. That is, when the outside is viewed from the inside of the car, it is required that it is clear enough to confirm the outside, but when viewed from the outside, it is also visible from the perspective of protecting the inside priver. Is not required.

However, as described above, the conventional wind film is inevitably the same in visible transmittance from the inside and outside of the wind glass as described above. Therefore, the visible permeability is increased and the protection of the inner ply bar is ignored. On the other hand, if the visible permeability is made small enough to protect the inner pliers, it becomes difficult to see the outside, and in some cases there is a risk of causing a traffic accident.

Therefore, the present invention has been devised in view of various existing conditions as described above. The visible transmittance from the inside and the outside when the film is attached to the wind glass is made different from the inside to the outside. While you can see clearly when you look at things, the inside cannot be seen clearly from the outside, and the efficiency of reflection of heat at the outside and the cut rate of ultraviolet rays, infrared rays, etc. are improved to prevent the outside light from entering the inside. It is an object of the present invention to provide a sticking film for wind glass, which can reduce intrusion and the like.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, according to the present invention, in the case where the adhesive layer 2 formed on the surface of the film base 1 is attached to the surface G of the wind glass, a fine powder metal is formed in the adhesive layer 2. The powder 3 is dispersed and mixed in. The film base 1 can be configured to be attached to the inner surface of the wind glass G, and the metal powder 3 can be configured to be colored.

In the sticking film for a wind glass according to the present invention configured as described above, the adhesive layer 2 is a state in which the film base 1 is stuck and fixed on the G surface of the wind glass and stuck on the G surface of the wind glass. Therefore, the metal powder 3 dispersed and mixed in the pressure-sensitive adhesive layer 2 has different transmittances and reflectances inside and outside the wind glass G. Although the outside light from the outside to the inside of the wind glass G can pass through the wind glass G, the metal powder 3 in the adhesive layer 2 diffuses the outside light to improve the reflection efficiency and reduce the transmittance to the inside. Do not let heat rays enter the inside of a car, for example. In addition, the diffuse reflection effect makes it difficult to see the inside because of the decrease in the permeability to the inside. When the outside is seen from the inside of the windshield G to which the film base 1 is attached, the metal powder 3 in the adhesive layer 2 cannot be seen, and the outside appearance, scenery, etc. can be seen neatly, for example, the visibility in driving a car. Do not block.

[0008]

[Embodiment of device]

 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings is a film base made of a translucent or transparent synthetic resin film such as a polyester film. 1 is provided with an appropriate color by a dyeing method, a coating method or the like, and its thickness is, for example, about 25 to 38 μm. The example shown in the drawing shows the case where it is formed by the coating method, and the pigment coating layer 1B is formed on the surface of the film substrate 1A by solvent dyeing.

A pressure-sensitive adhesive layer 2 is formed on one side of the film base 1 for sticking to the windshield G surface of an automobile, for example. The pressure-sensitive adhesive layer 2 has a peelable thickness of about 38 μm. A release film 4 of a certain degree is attached. In addition, finely powdered metal powder 3 is dispersed and mixed in the pressure-sensitive adhesive layer 2, and diffuses external light transmitted through the wind glass G when it is attached to the surface of the wind glass G and diffuses it into a gunmetal-like appearance. It is designed to give the viewer an impression of the pattern. When the metal powder 3 is dispersed and mixed into the pressure-sensitive adhesive layer 2, it is possible to adjust the degree of transmittance, reflectance, etc. after the sticking to the wind glass G, depending on the amount thereof, and its coloring. Can be of various colors such as gold, silver, red, blue, green, purple, black and the like.

The metal powder 3 has a particle size of, for example, about 35 to 500 mesh (28 to 447 μ) and is surrounded by a colorable protective layer, whereby a color metallic luster capable of imparting various colorful colors can be obtained. It has become a thing. For example, a metal powder substance called “ELGI” manufactured by Oike Industrial Co., Ltd. in Kyoto is used. It is manufactured by applying the vacuum deposition method and has a clear luster characteristic of metal deposition. It is a flaky powder having a small specific gravity, and even if it is mixed in the pressure-sensitive adhesive layer 2, it hardly disperses or aggregates, and has good dispersibility and stability. Furthermore, since it is covered with a protective layer, it has strong resistance to acids, alkalis and other corrosive atmospheres and solutions, and has a long-lasting glittering property. Toluene, xylene, n-butyl alcohol, acetone, MEK, MIBK, It withstands most solvents such as ethyl acetate, cyclohexanone, etc., shows no change in gloss in a powder state at 180 ° C. for 30 minutes, and has no discoloration or discoloration in a weather meter test of 200 to 500 hrs.

The metal powder 3 does not have to be dispersed and mixed in the pressure-sensitive adhesive layer 2 over the entire surface of the pressure-sensitive adhesive layer 2, and may be only in a portion required as a gunmetal-like pattern. It is also possible to create windy elephants and the like.

In addition, a hard coat layer 5 of high hardness is formed on the other side of the film base 1 for weather resistance, impact resistance, etc., to protect the surface of the film base 1 from external impacts and the like. It is designed so that it can be achieved.

Explaining an example of use thereof, for example, it is applied to the inner surface of the wind glass G in an automobile, and the adhesive layer 2 exposed by peeling off the release film 4 is applied to the wind glass G side. Stick with adhesive. When sticking, press it so that no bubbles remain between the surface of the windshield G and the surface of the pressure-sensitive adhesive layer, and remove burrs, etc., which are the protruding portion from the windshield G, with a cutter or the like. Appropriately divide it along the three-dimensional curved surface of G, or make it into one piece using a paper pattern pre-shaped in the shape of wind glass G and attach it.

[0014]

[Effect of device]

 Since the present invention is configured as described above, when it is attached to the window glass G, the metal powder 3 dispersed and mixed in the adhesive layer 2 existing between the window glass G and the film base 1 from inside and outside. Have different visible transmittances to improve the efficiency of reflection of heat on the outside and the cut ratio of ultraviolet rays, infrared rays, etc. to reduce the penetration of external light into the inside, and also to see the outside from the inside. In some cases, the inside can be clearly seen, but the inside cannot be seen clearly from the outside.

That is, in this invention, in this invention, the adhesive layer 2 formed on the surface of the film base 1 is adhered to the surface of the window glass G, and the fine metal powder 3 is dispersed and mixed in the adhesive layer 2. Therefore, when external light enters from the adhesive layer 2 side, the transmittance decreases due to the reflection of the external light, and conversely, the metal powder 3 is indirectly viewed. When the light is incident from the side of the film base 1 to be viewed, it is not reflected at all, and the transmittance is maintained as it is.

Since the metal powder 3 is dispersed and mixed in the pressure-sensitive adhesive layer 2 in advance, it is only necessary to stick the metal powder 3 to the surface of the wind glass G by the pressure-sensitive adhesive layer 2 and to the inner surface of the wind glass G. Therefore, it is difficult to see the inside from the outside, and sufficient privacy inside can be secured. On the other hand, when viewing the outside from the inside, it is possible to see the outside appearance and scenery in a clear and clear state, and it is safe without, for example, obstructing the external view when driving a car.

The metal powder 3 in the pressure-sensitive adhesive layer 2 diffuses incident light from the outside, which improves the reflection efficiency, reduces the transmittance to the inside, and allows heat rays such as sunlight to enter the automobile, for example. It cannot be put in, and it greatly contributes to energy saving by improving cooling efficiency in summer, for example.

[Brief description of drawings]

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

FIG. 2 is also a perspective view of a part, (A) of which is viewed from the side of the film base that is the inside of the window glass when attached, and (B) is an adhesive that is also the outside of the window glass. It is seen from the layer side.

FIG. 3 is a perspective view of the automobile as seen from the outside of the automobile in the same state as being attached to the windshield of the automobile.

[Explanation of symbols]

G ... Wind glass 1 ... Film base 1A ... Film base material 1B ... Pigment coating layer 3 ... Metal powder 4 ... Release film 5 ... Hard coat layer

Claims (4)

[Scope of utility model registration request] 1. A sticking film for a wind glass, which is stuck to a wind glass by an adhesive layer formed on a film base surface, wherein fine powder metal powder is dispersed and mixed in the adhesive layer. Sticking film for. 2. The sticking film for windshield according to claim 1, wherein the film base is stuck on the inner surface of the windshield. 3. The sticking film for windshield according to claim 1, wherein the metal powder is subjected to a coloring treatment. 4. A sticking film for wind glass, which is stuck to the inner surface of a wind glass by means of an adhesive layer formed on a film base surface, characterized in that fine metal powder is dispersed and mixed in the adhesive layer. A sticking film for wind glass.