JP3139997B2 - Shade film - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shade film which is attached to a window glass or a window glass of an automobile to block light transmission.

[0002]

2. Description of the Related Art As described above, as a shade film which is attached to a window glass or a window glass of an automobile to block the transmission of outdoor light, a opaque synthetic resin film or an aluminum or the like is conventionally used. A synthetic resin film in which a thin layer is laminated, a synthetic resin film in which a black ink layer is laminated on the surface by printing, and the like are used.

[0003]

Since the conventional shade film has a main purpose of a shade function (light-shielding function), the types of ready-made patterns in consideration of decorativeness are limited, and the width of pattern selection is limited. There is. On the other hand, even if an attempt is made to individually print on the surface of the shade film using an ink jet printer or the like, there is a disadvantage that the conventional shade film cannot be printed because it is merely a film made of a synthetic resin as described above.

The present invention has been made in view of these disadvantages, and it is an object of the present invention to provide a shade film having a light-shielding function, capable of printing an arbitrary pattern by a printer such as an ink-jet system, and enhancing decorativeness. Is what you do.

[0005]

Means for Solving the Problems The invention made to solve the above-mentioned problems is to provide an ink image receiving layer on a printable surface,
A base film made of a synthetic resin, a light shielding layer for shielding light transmission and a shade film having a pressure-sensitive adhesive layer on the back surface,
The ink image receiving layer contains a synthetic resin having hydrophilicity, and an aluminum vapor-deposited layer on which aluminum is vapor-deposited is used as the light shielding layer.

According to this means, a shade film having a light-shielding function can be obtained by equipping a light shielding layer in the same manner as a conventional shade film. It can be attached to any place such as glass. Furthermore, since the shade film of the present invention is provided with an ink image receiving layer on the surface, various patterns can be arbitrarily printed on the surface by a printer of an ink jet system or the like. Therefore, it is also effective for interior decoration.

Further, since the ink image receiving layer contains a synthetic resin having hydrophilicity, the ink image receiving layer can receive and absorb water-based ink emitted from an ink jet printer or the like. In recent years, water-based inks that are excellent in safety, recording characteristics and the like are preferably used for ink-jet recording, and therefore, the ink-receiving layer has a water-absorbing property such that the water-absorbing property and initial drying property of the water-based ink become good. It is preferable to use a high resin composition.

Further, the shade film uses an aluminum vapor-deposited layer on which aluminum is vapor-deposited as a light shielding layer. Since the aluminum thin film formed by vapor deposition is a metal and has a high light-shielding function, a shade film having a large light-shielding effect can be obtained by this means.

Another aspect of the present invention has been made to solve the above-mentioned problems, and includes an ink image receiving layer on a printable surface, a base layer made of synthetic resin, a light shielding layer for shielding light transmission, and an adhesive on a back surface. A shade film provided with an agent layer, wherein the ink image receiving layer contains a synthetic resin having hydrophilicity,
A printing layer printed with black ink is used as the light shielding layer. Since the black ink print layer also has a sufficient light-shielding function, a shade film having a light-shielding effect can be obtained by this means.

[0010] By covering the back surface of the pressure-sensitive adhesive layer with a release sheet, the pressure-sensitive adhesive force of the pressure-sensitive adhesive layer is suppressed by the release sheet, and as a result, the shade film can be wound up or superimposed, and transported. , Convenience of sales and the like can be improved. The release sheet may be peeled off when the shade film is attached.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings as appropriate. 1 to 4 are schematic cross-sectional views showing shade films according to first to fourth embodiments of the present invention, respectively. Hereinafter, description will be made in order from the shade film of FIG.

The shade film 1 shown in FIG. 1 has an ink image receiving layer 2, a base layer 3, an adhesive layer 4, a film 5, an aluminum vapor deposition layer 6, an adhesive layer 7, and a release sheet 8 which are arranged from the front side to the back side. This is a structure in which the layers are stacked in the order of the navel. Therefore,
The shade film 1 can exhibit a light blocking effect by the aluminum vapor deposition layer 6, and can be printed on the surface by an ink jet printer or the like by the ink image receiving layer 2.

The ink receiving layer 2 is a layer that receives ink emitted from an ink jet printer or the like and absorbs the ink. In recent years, water-based inks that are excellent in safety, recording characteristics, and the like are preferably used for ink-jet recording. Therefore, the ink-receiving layer 2 has a water-absorbing property such that the water-absorbing property and initial drying property of the water-based ink are improved. It is preferable to use a resin composition having a high viscosity. Examples of the resin used include polyvinyl alcohol, polyethylene oxide, polypropylene oxide, polyvinylpyrrolidone, polyacrylic acid, sodium polyacrylate, methylcellulose,
Examples thereof include polyacrylamide, a water-soluble polyester resin, polyvinyl acetate, a water-soluble polyamide resin, polyethyleneimine, polyethylenepolyamine, and polyallylamine, which are used alone or in combination.
Among them, polyacrylic acid, sodium polyacrylate, polyvinyl alcohol, methylcellulose, and polyvinylpyrrolidone which are excellent in the absorbability of the aqueous ink are preferably used. In the resin composition used for the ink image receiving layer 2, for example, an antistatic agent, a surfactant, a dye fixing agent, an antioxidant, a pH adjuster, and the like are appropriately blended in addition to the above-mentioned resins.

The base layer 3 is formed of a synthetic resin, and the resin used is, for example, polyethylene terephthalate,
Examples include polyethylene naphthalate, acrylic resin, polycarbonate, polystyrene, polyolefin, cellulose acetate, and weather-resistant vinyl chloride. The base material layer 3 is preferably transparent, particularly colorless and transparent, capable of transmitting light so that the metal color of the aluminum deposition layer 6 described later can be seen from the surface side.

The adhesive layer 4 comprises the base material layer 3 and the film 5
And a polyurethane adhesive, an acrylic adhesive, or the like.

The film 5 is a film made of a synthetic resin for vapor-depositing an aluminum vapor-deposited layer 6 which will be described later. Examples of usable resins include, for example, polyethylene terephthalate, polyethylene naphthalate, acrylic Resin, polycarbonate, polystyrene,
Examples include polyolefin, cellulose acetate, and weather-resistant vinyl chloride.

The aluminum deposited layer 6 is formed of the film 5
Is formed by evaporating aluminum on the back surface of the substrate.

The pressure-sensitive adhesive layer 7 is made of the aluminum vapor-deposited layer 6
Is formed by applying an adhesive to the back surface of the substrate. As the usable pressure-sensitive adhesive, a polyurethane-based adhesive, an acrylic-based adhesive, or the like is used as in the case of the adhesive layer 4.

The release sheet 8 is a synthetic resin film or paper sheet whose surface has been subjected to a release treatment. Examples of the synthetic resin usable for such a film include the base material layer 3 and the film 5. Similarly, for example, polyethylene, polymethylpentene, ethylene vinyl acetate resin, ethylene ethyl acrylate resin, ethylene acrylic acid resin, ethylene methacrylic acid resin, ethylene methyl acrylate resin, ionomer resin, polyvinyl alcohol, polyester and the like can be mentioned. Examples of paper materials that can be used for paper sheets include, for example, unbleached kraft paper, bleached kraft paper, single-gloss unbleached kraft paper, high-quality paper, medium-quality paper, glazed paper, synthetic paper, Japanese paper, tracing paper, Various coated papers, paperboards, liner papers, pure white roll papers and the like can be mentioned.

Hereinafter, a method for producing the above-mentioned shade film will be described. First, by depositing aluminum on the back surface of the film 5, a laminate of the film 5 and the aluminum deposited layer 6 is formed. Next, the resin composition of the ink image receiving layer 2 is coated on the surface of the base material layer 3 and dried and solidified to form a laminate of the base material layer 3 and the ink image receiving layer 2. For such coating, various known methods such as a bar coater, a roll coater, a blade coater, and a kiss coater can be employed. Finally,
The laminate of the base material layer 3 and the ink image receiving layer 2 is bonded to the laminate of the film 5 and the aluminum vapor-deposited layer 6 with an adhesive layer 4, and the back surface of the aluminum vapor-deposited layer 6 is coated with a pressure-sensitive adhesive layer 7. A release sheet 8 is attached to the back surface of the layer 7.

The thickness of each layer constituting the shade film 1 is 5 μm to 20 μm for the ink image receiving layer 2, 50 μm to 150 μm for the base material layer 3, 3 μm to 15 μm for the adhesive layer 4, and 3 μm for the adhesive layer 4. 9 μm or more and 15 μm or less;
The thickness of the pressure-sensitive adhesive layer 7 is 10 μm or more and 30 μm or less, and the release sheet 8 is 10 μm or more and 50 μm or less.

Next, the shade film 11 of FIG. 2 is substantially the same as the shade film 1 of FIG. 1, except that a printed layer 16 is used instead of the aluminum vapor-deposited layer 6. That is, the shade film 11 includes the ink image receiving layer 12, the base material layer 13, the adhesive layer 14, and the film 1
5, printing layer 16, pressure-sensitive adhesive layer 17, and release sheet 18,
The structure is such that the layers are stacked in this order from the front side to the back side. The printing layer 16 is formed by printing on the back surface of the film 15 with black ink. Therefore, the shade film 11 exerts a light blocking effect by the print layer 16. The material and thickness of each layer other than the printing layer 16 are the same as those of the shade film 1 of FIG. 1 described above, and the manufacturing method thereof is the same as that of FIG. Is the same as the above-described method for producing the shade film 1.

The shade film 21 of FIG. 3 is substantially the same as the shade film 1 of FIG. 1 and the shade film 11 of FIG.
Are different in that both are laminated and used. Specifically, the shade film 21 includes an ink image receiving layer 22,
It has a structure in which a base layer 23, an adhesive layer 24, a film 25, an aluminum deposition layer 26, a printing layer 27, an adhesive layer 28, and a release sheet 29 are laminated in this order from the front side to the back side. The printing layer 27 may be formed by printing in a stripe or a matrix, instead of being formed by printing black ink on one surface. Therefore, since the shade film 21 uses both the aluminum vapor-deposited layer 26 and the printed layer 27, the light-shielding effect can be further improved. The material and thickness of each layer constituting the shade film 21 are the same as those of the above-described shade film 1 of FIG. 1, and the manufacturing method thereof is also such that aluminum is deposited and printing is performed with black ink. This is the same as the above-described method of manufacturing the shade film 1 in FIG.

The shade film 31 shown in FIG. 4 is different from the above-described shade films 1, 11, 21 in that an aluminum deposition layer 34 is directly laminated on the back surface of the base layer 33 without using the films 5, 15, 25. And different. Specifically, the shade film 31 has a structure in which an ink image receiving layer 32, a base layer 33, an aluminum deposition layer 34, an adhesive layer 35, and a release sheet 36 are laminated in this order from the front side to the back side. is there. Therefore, the shade film 31 can be made thinner because the films 5, 15, 25 are not used. The material and thickness of each layer constituting the shade film 31 are the same as those of the shade film 1 shown in FIG.
The method of manufacturing the shade film 31 is the same as that described above except that first, aluminum is vapor-deposited on the back surface of the base material layer 32, and then the surface of the base material layer 33 is coated with the resin composition constituting the ink image receiving layer 32 Is the same as the above-described method for producing the shade film 1 in FIG.

[0025]

As described above, the shade film of the present invention can print any pattern with a printer such as an ink jet system while having a light shielding function.
Therefore, the decorativeness can be improved as compared with a conventional shade film having only a light shielding function.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a shade film according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view showing a shade film according to a second embodiment of the present invention.

FIG. 3 is a schematic sectional view showing a shade film according to a third embodiment of the present invention.

FIG. 4 is a schematic sectional view showing a shade film according to a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shade film 2 Ink image receiving layer 3 Base layer 4 Adhesive layer 5 Film 6 Aluminum vapor deposition layer 7 Adhesive layer 8 Release sheet 11 Shade film 12 Ink image receiving layer 13 Base layer 14 Adhesive layer 15 Film 16 Printing layer 17 Adhesive layer 18 Release sheet 21 Shade film 22 Ink image receiving layer 23 Base layer 24 Adhesive layer 25 Film 26 Aluminum vapor deposition layer 27 Print layer 28 Adhesive layer 29 Release sheet 31 Shade film 32 Ink image receiving layer 33 Base layer 34 Aluminum deposition layer 35 Adhesive layer 36 Release sheet

Claims (3)

(57) [Claims] 1. A shade film comprising a printable surface ink image receiving layer, a synthetic resin base layer, a light blocking layer for blocking light transmission, and a back surface pressure-sensitive adhesive layer, wherein the ink image receiving layer is The layer contains a synthetic resin having hydrophilicity
The light shielding layer is made of aluminum deposited with aluminum.
A shade film characterized by using an aluminum evaporated layer . 2. A shade film comprising a printable surface ink receiving layer, a synthetic resin base layer, a light blocking layer for blocking light transmission, and a back surface adhesive layer, wherein said ink receiving layer is The layer contains a synthetic resin having hydrophilicity
Use cage, as the light-shielding layer, printed layer printed with a black ink
Shade film characterized by being put . 3. The shade film according to claim 1, wherein the back surface of the pressure-sensitive adhesive layer is covered with a release sheet.