JPH06166154A - Display - Google Patents

Abstract

PURPOSE:To provide a display article which has superb size stability/durability, outstanding adhesion between acrylic photosensitive resin film capable of developing a color image and a base material film, and further, which is almost free from surface fouling and resistant to the qualitative change of a color image. CONSTITUTION:The display article is composed of a laminate of polyester film A having an overcoat layer 4 and acrylic photosensitive resin film P having a color image laminated on the overcoat layer 4. In addition, the overcoat layer 4 is a resin layer based on vinyl chloride/acrylonitrile copolymer resin and/or linear saturated polyester resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display object used as an advertising signboard or an advertising poster indoors or outdoors.

[0002]

2. Description of the Related Art Heretofore, a laminate of a film-shaped substrate and an acrylic photosensitive resin film having a colored image has been known as a display object such as an advertising signboard or an advertising poster. In this case, the adhesion between the base film and the acrylic photosensitive resin film is performed by the adhesive force of the acrylic photosensitive resin. Therefore, as the base material film, a material to which the acrylic photosensitive resin is easily adhered, such as paper or polyvinyl chloride film, is used. However, paper has the drawback of poor durability and is not suitable for outdoor use. On the other hand, the polyvinyl chloride film has problems such as poor dimensional stability and cracks in the resin film at the bent portion. A polyester film is known as a film having excellent thermal stability and dimensional stability. However, this resin cannot be used as a base film as it is because it has poor adhesiveness with an acrylic photosensitive resin. Therefore, a polyester film overcoated with an acrylic resin emulsion, which is generally used as an adhesive for acrylic polymers, was used as the base film. In this case as well, the adhesiveness between the polyester film and the acrylic photosensitive resin is It was insufficient.
Further, a polyester film as a protective layer is laminated on a colored image film, but in the case of this polyester film, there is a problem that surface stain is likely to occur in addition to being insufficient in weather resistance. It was

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a display comprising a laminate of an acrylic photosensitive resin film having a colored image and a base film, and having a specific overcoat layer as the base film. By using a polyester film, it is an object to provide a display having excellent dimensional stability and durability as well as excellent adhesiveness between an acrylic photosensitive resin film having a colored image and a base film. To do. Another object of the present invention is to provide a display object that is less likely to cause surface stains and is less likely to cause deterioration of a colored image.

[0004]

The present inventors have completed the present invention as a result of intensive studies to solve the above problems. That is, according to the present invention, it comprises a laminate of a polyester film having an overcoat layer and an acrylic photosensitive resin film having a colored image laminated on the overcoat layer, wherein the overcoat layer is vinyl chloride. / Acrylonitrile copolymer resin and /
Alternatively, there is provided a display object which is a resin layer mainly composed of a linear saturated polyester resin. Further, according to the present invention, a polyester film having an overcoat layer, an acrylic photosensitive resin photocurable film having a colored image laminated on the overcoat layer, and an acrylic photosensitive resin film on the acrylic photosensitive resin film. The overcoat layer is a resin layer mainly composed of vinyl chloride / acrylonitrile copolymer resin and / or linear saturated polyester resin, and the surface protection film absorbs ultraviolet rays. Provided is a fluororesin film containing an agent.

The base film used in the present invention is
(I) vinyl chloride / acrylonitrile copolymer resin,
A polyester film having an overcoat layer containing (ii) a linear saturated polyester resin, and (iii) a mixed resin of a vinyl chloride / acrylonitrile copolymer resin and a linear saturated polyester resin. An adhesive layer may be previously formed on the back surface of the base film so that it can be attached to the solid surface. Further, this base film can be made opaque by containing a white pigment or another coloring pigment therein. As described above, the polyester film has poor adhesiveness to the acrylic photosensitive resin and cannot be used as a base film as it is. However, by providing an overcoat layer containing the above-mentioned specific resin on the surface, it can be advantageously applied as a base film having excellent adhesiveness to an acrylic photosensitive resin film. As the polyester film, generally used polyethylene terephthalate is generally used, but other polyester resins such as polyethylene naphthalate may be used. The adhesion amount of the resin layer as the overcoat layer on the polyester film is 0.1 to 1 g /
m ² , preferably 0.2 to 0.5 g / m ² . Also,
If necessary, the overcoat layer may contain a filler such as silica, alumina, or titanium oxide.
Further, an ultraviolet absorber can be contained.

The acrylic photosensitive resin film used in the present invention is conventionally known, and can be obtained by forming an acrylic photosensitive resin into a film. Figure 1
An explanatory sectional view of an example of this photosensitive resin film is shown in FIG. In this figure, P-1 is an adhesive acrylic photosensitive resin film in which a support film and a peeling film are laminated on the upper and lower surfaces, P (1) is the resin film, 2 is the support film, and 3 is A peeling film is shown. Polyethylene terephthalate is used as the support film 2, and a polypropylene film is used as the peeling film. Such an acrylic photosensitive resin film is already on the market and can be obtained, for example, as a color proofing system (Cromarine) (manufactured by DuPont).

In order to produce the display of the present invention, after peeling off the peeling film 3 from the acrylic photosensitive resin film P-1 shown in FIG. 1, this is placed on the overcoat layer of the base polyester film. Laminate and laminate.
In this case, the lamination is performed by heating the laminated film at a temperature of 80 to
It can be carried out by passing between pressure rolls under the condition of 130 ° C. Next, the color separation film B-1 is overlaid on the laminate film thus formed. This state diagram is shown in FIG. In FIG. 2, A is a base polyester film, 4 is an overcoat layer formed thereon, P (1) is an adhesive acrylic photosensitive resin film, 2 is a support film attached to the surface thereof, B
-1 shows a color separation film. The color separation film B-1 is a positive type, and b in the film indicates an opaque image portion that does not transmit ultraviolet rays. Further, C indicates an ultraviolet ray transmitting portion (non-image portion). The color separation film B-1 is, in the case of a color image, four kinds of color separation films B-1 and B-2 obtained by color-separating a desired color image photograph into four colors of cyan, magenta, yellow and black. , B-3, B
It is one of -4. Ultraviolet rays are irradiated from the surface side of the laminated film having the cross-sectional structure shown in FIG. 2 thus formed. By this irradiation with ultraviolet rays, the portion of the photosensitive resin film exposed to ultraviolet rays, that is, the photosensitive resin film portion corresponding to the non-image area (transparent area) becomes a photo-cured body and loses its surface adhesiveness. On the other hand, the non-exposed area of the photosensitive resin film that was not exposed to ultraviolet light, that is, the image area (opaque area)
The photosensitive resin film portion corresponding to (1) is an uncured portion that retains surface tackiness. In this way, a latent image of an uncured adhesive resin image is formed on the photosensitive resin film P (1).

Next, the color separation film B-1 and the support film 2 on the surface of the resin film are peeled off from the laminated film irradiated with the ultraviolet rays as described above, and the color separation film B is placed thereon. A colored powder pigment having a color corresponding to -1 is applied, and the powder pigment is adhered to the adhesive portion (image portion) which is the non-exposed portion of the resin film to form a pigment image. This state diagram is shown in FIG. In FIG. 3, 5 is a pigment, 6 is an unexposed area of the resin, and 7 is an exposed area of the resin.

Next, the photosensitive resin film P-2 was peeled off and the peeling film was peeled off again on the surface of the laminated film having the pigment image on the surface obtained as described above in the same manner as described above. Then, after lamination, the color separation film B-2 is overlapped and irradiated with ultraviolet rays, and then the support film formed on the surface of the color separation film B-2 and the photosensitive resin film P (2) is peeled off, and then, A pigment image is formed by adhering the pigment powder to the non-exposed adhesive portion of the resin film.

Further, the same operation as described above is repeated for the remaining color separation films B-3 and B-4 to form a pigment image. Then, a photosensitive resin film P-5 is superposed on the pigment image, and the entire surface thereof is irradiated with ultraviolet rays,
The support film on the photosensitive resin film is removed and a cover film made of the photosensitive resin is formed to obtain a display product.

FIG. 4 shows a sectional view of the display of the present invention obtained as described above. In this figure, A is a base polyester film, 4 is an overcoat layer thereof, 5 is a pigment, 6 is an unexposed area, and 7 is an exposed area. Also, P
(1), P (2), P (3) and P (4) represent a partially photo-cured photosensitive resin film having a pigment powder image formed on the surface thereof, and P (5) is The cover film which consists of the whole surface photocuring body of a photosensitive resin film is shown.

The display object according to the present invention is, if necessary,
A surface protective film made of a fluorine-containing resin film containing an ultraviolet absorber can be laminated on the surface in order to prevent deterioration of the colored image due to light and to prevent surface stains. As the fluorine-containing resin film in this case, a film formed of a vinylidene fluoride resin, or a fluorine-containing resin such as polytetrafluoroethylene resin or tetrafluoroethylene copolymer resin can be used. In addition, this surface protection film can have fine irregularities on its surface. This surface protection film preferably contains an ultraviolet absorber. The thickness of the fluororesin film used in the present invention is 10 to 80 μm, preferably 20 to 50 μm.
In addition, the ultraviolet ray shielding rate of 360 nm or less is 9
It is 0% or more, preferably 95 to 100%. FIG. 4
The lamination of the fluorine-containing resin film on the surface of the display object shown in 1 can be performed by thermocompression bonding, or can be performed through an adhesive layer or a pressure-sensitive adhesive layer. The ultraviolet absorber can be contained in the fluororesin film, as well as in the adhesive or the pressure-sensitive adhesive layer. In addition, as the adhesive or pressure-sensitive adhesive in this case, any one can be used as long as it can adhere or adhere the fluororesin film to the surface of the display object, but preferably vinyl chloride / acrylonitrile copolymer A united resin, a linear saturated polyester resin, an acrylic resin or the like is used.

FIG. 5 shows a sectional view of the display of the present invention having a surface protective film. In this figure, A is a base polyester film, 4 is an overcoat layer thereof, 5 is a pigment, 6 is an unexposed area, and 7 is an exposed area. Also, P
(1), P (2), P (3) and P (4) represent photosensitive resin films having a pigment powder image formed on the surface thereof, and P (P)
(5) shows a cover film made of a photocured product of the entire surface of a photosensitive resin film. Further, 8 is a fluorine-containing resin film containing an ultraviolet absorber, and 9 is an adhesive layer.

[0014]

INDUSTRIAL APPLICABILITY The display of the present invention is excellent in dimensional stability, light resistance, and durability by using a polyester film having a specific overcoat layer as a base film, It has excellent adhesiveness with an acrylic photosensitive resin film having a colored image laminated thereon. Even when this display object is bent, the photosensitive resin cured film at the bent portion is not cracked or cracked. Furthermore, since the surface protective film of the display product of the present invention having the surface protective film is a fluorine-containing resin film, surface stains are less likely to occur, and the adhered stains can be easily removed. Further, when the surface protective film contains an ultraviolet absorber, the transmittance of ultraviolet rays is blocked, so that the deterioration of the colored image due to ultraviolet rays is prevented.

[0015]

EXAMPLES Next, the present invention will be described in more detail by way of examples.

Example 1 On a white opaque polyethylene terephthalate film (thickness: 50 μm) filled with a white pigment inside, a vinyl chloride / acrylonitrile copolymer resin (“Saran Resin F310” manufactured by Dow Chemical Co.) 0.93 wt. Part, linear saturated polyester resin (manufactured by Toyobo Co., Ltd., “Byron-2
00 ") 0.31 wt parts, methyl ethyl ketone 20 wt
Part, 12 wt parts of toluene, and 8 wt parts of propylene glycol monomethyl ether acetate were applied and dried to prepare a base polyester film having a resin layer (resin deposition amount 0.3 g / m ² ) as an overcoat layer. . Next, this base film and an acrylic photosensitive resin film having a structure shown in FIG. 1 (manufactured by DuPont,
"Cromarin film") was used to produce an indicator having the structure shown in FIG. The display thus obtained has a large adhesive force between the base film and the photosensitive resin film, and even if the display film is bent, the photosensitive resin film may peel off from the base film. However, the photosensitive resin film was not cracked.

Comparative Example 1 A display was made in the same manner as in Example 1 except that an acrylic resin emulsion (“ARON NS-1200” manufactured by Toagosei Co., Ltd.) was used as the adhesive applied on the base polyester film. The thing was made. In this display, the adhesive force between the base film and the photosensitive resin film was poor, and when this was bent, the photosensitive resin film was peeled from the base film at the bent portion.

Example 2 An acrylic pressure-sensitive adhesive (thickness: 25 μm) was formed on the entire surface photocurable film of acrylic photosensitive resin on the surface of the display object of Example 1.
m) is laminated with a vinylidene fluoride resin film (thickness: 50 μm) containing an ultraviolet absorber, and FIG.
An indicator having a surface protective film having the structure shown in was prepared. The display thus obtained had almost no discoloration, deterioration, or stain due to ultraviolet rays, dust, dust in the air, or the like. Further, when the stain was forcibly applied and then wiped with a wet cloth, the stain could be easily removed, and there was no change in the colored image and the overcoat layer.

Comparative Example 2 A display product was prepared in the same manner as in Example 2 except that a polyethylene film was used as the surface protective layer film. This display had discoloration, deterioration, and stains due to ultraviolet rays, dust, dust in the atmosphere, and the like. Furthermore, when I wiped this dirt with a wet cloth, I could not remove the dirt,
Further, the protective film, the colored image and the overcoat layer were discolored and deteriorated.

[Brief description of drawings]

FIG. 1 shows a cross-sectional view of an acrylic photosensitive resin film having a release film on one surface and a support film on the upper surface.

FIG. 2 shows a support film having an overcoat layer,
The cross-sectional view of the laminated film which laminated | stacked the acrylic photosensitive resin film which peeled and removed the peeling film, and laminated | stacked the color separation film on it is shown.

FIG. 3 shows that the color separation film and the support film on the photosensitive resin film were removed from the surface side of the laminated film having the structure shown in FIG. 2 by ultraviolet irradiation, and then the powder pigment was not exposed to the ultraviolet rays. Adhesive part of resin film (image part)
The cross-sectional view of the laminated film obtained by making it adhere to is shown.

FIG. 4 shows a sectional view of a display object of the present invention.

FIG. 5 shows a cross-sectional view of the display object of the present invention having a protective film on the surface.

[Explanation of symbols]

P (1), P (2), P (3), P (4), P (5) Acrylic photosensitive resin film 2 Support film 3 Release film 4 Overcoat layer 5 Powder pigment 6 Unexposed resin Part 7 Exposure resin part 8 Surface protection film 9 Adhesive layer A Base polyester film B-1 Color separation film

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B32B 27/28 6122-4F 27/36 7016-4F G09F 15/02 6447-5G

Claims (2)

[Claims] 1. A laminate of a polyester film having an overcoat layer and an acrylic photosensitive resin film having a colored image laminated on the overcoat layer, wherein the overcoat layer is a vinyl chloride / acrylonitrile copolymer. A display object which is a resin layer mainly composed of a polymer resin and / or a linear saturated polyester resin. 2. A polyester film having an overcoat layer, an acrylic photosensitive resin film having a colored image laminated on the overcoat layer, and a surface protective film laminated on the acrylic photosensitive resin film. And a fluorine-containing surface protective film containing a UV absorber, wherein the overcoat layer is a resin layer mainly composed of vinyl chloride / acrylonitrile copolymer resin and / or linear saturated polyester resin. A display object characterized by being a resin film.