TW201307085A - Laminated body - Google Patents

Abstract

The object of the present invention is to provide a laminated body. The laminated body has a hard surface with high-hardness and excellent scratch resistance and abrasion resistance, and has excellent transparency, flexibility and heat resistance. The laminated body comprises a first plastic film having a hard coating layer on one surface, and a second plastic film laminated and adhered on the other surface of the first plastic film by adhesive. The first plastic film is an acrylic acid series resin film, and the resin that forms the hard coating layer contains organic-inorganic hybrid resin added with fluorine compounds.

Description

Laminate

One aspect of the present invention relates to an optical laminate having a hard coat layer used as a protective film for an image display device or the like.

The image display surface of an image display device such as a liquid crystal display or an organic EL display is required to have abrasion resistance so as not to be scratched during use. Therefore, a base film (hard coat film) having a hard coat layer laminated on the surface may be adhered to the image display surface. Thereby, the wear resistance of the image display surface of the image display device can be improved.

As a method of laminating a hard coat layer on the surface of a base film, various proposals have been made. For example, in one method, a harder resin layer is formed on the surface of the base film, and the harder resin layer is made of a photopolymerizable resin such as a thermosetting resin or an ultraviolet curable resin. Further, there is, for example, a method disclosed in Patent Document 1, which laminates polyazane on the surface of a base film. Then, the laminated polyazide is ceramized. Thereby, a ruthenium oxide layer as a hard coat layer was formed. In the method disclosed in Patent Document 2, the material of the hard coat layer is a resin such as an ultraviolet curable resin containing fine particles such as colloidal ceria as a filler. Thereby, a harder hard coat layer is formed.

Patent Document 1: Japanese Patent Laid-Open Publication No. Hei 8-112879

Patent Document 2: Japanese Patent Laid-Open Publication No. 2002-67238

However, with the method disclosed in Patent Document 1, the cerium oxide layer after ceramization has sufficient hardness itself. However, this method has a problem that when the thickness of the ruthenium oxide layer is thin, sufficient pencil hardness cannot be obtained. In order to increase the hardness, it is conceivable to simply thicken the yttrium oxide layer. If the ruthenium oxide layer is thickened, the pencil hardness is improved. However, in this case, there is a problem in that the ruthenium oxide layer is liable to cause cracks and peeling. Further, in this case, the flexibility of the entire film is impaired. Therefore, when the film is bent, there is a problem that cracks occur in the ruthenium oxide layer or delamination occurs.

Further, as described above, the method disclosed in Patent Document 2 uses a resin containing fine particles such as colloidal ceria as a material to form a harder hard coat layer. However, in this method, since the filler is contained, the transparency of the hard coat layer is lowered. As a result, there is a problem that the transparency of the hard coat film having an optical use of the hard coat layer is impaired.

In view of the problems described, it is an object of the present invention to provide a laminate having a hard coat layer which is particularly suitable for optical use. The laminate has a high hardness surface of pencil hardness of 5H or more and has excellent scratch resistance and abrasion resistance. Moreover, the laminate is less likely to undergo deformation and warpage due to thermal influence. In addition, the laminate also has excellent flexibility and transparency.

In order to achieve the object, a laminated body of one embodiment of the present invention includes: a first plastic film having a hard coat layer on one face; and a second plastic film laminated on the first plastic film by an adhesive layer On the other surface, the first plastic film is an acrylic resin film, and the resin forming the hard coat layer contains an organic-inorganic hybrid resin to which a fluorine compound is added.

According to the laminated body of one embodiment of the present invention, the first plastic film having a hard coat layer on one surface is an acrylic resin film. Moreover, the hard coat layer contains an organic-inorganic hybrid resin. Thereby, the adhesion of the base film to the hard coat layer becomes good. Therefore, in the laminate, peeling or cracking is less likely to occur at the interface between the hard coat layer and the first plastic film. That is, the laminate has excellent flexibility. Moreover, the laminate has excellent transparency, high surface hardness, excellent scratch resistance, and excellent wear resistance.

Further, in the laminate described above, a fluorine compound is added to the organic-inorganic hybrid resin forming the hard coat layer. Therefore, even when the laminate is bent, the hard coat layer is less likely to cause cracks. That is, the laminate has excellent flexibility. Moreover, since the fluorine compound is contained, the smoothness of the surface of the hard coat layer is improved. Therefore, the surface of the hard coat layer becomes easy to slide, and the surface of the hard coat layer is not easily scratched. Therefore, the laminate has excellent scratch resistance and abrasion resistance. Further, the second plastic film is disposed on the other surface of the first plastic film through the adhesive layer. Therefore, deformation and warpage of the laminate due to thermal influence can be suppressed. Therefore, the laminated body has excellent practicability as a protective film of an image display device or the like.

[detailed description]

The laminate (this laminate) of the present embodiment will be described in detail below.

The laminate includes a first plastic film and a second plastic film. The first plastic film has a hard coat layer on one side. The second plastic film is laminated on the other side of the first plastic film by a layer of adhesive. The first plastic film is an acrylic resin film. The hard coat layer contains an organic-inorganic hybrid resin containing a fluorine compound additive.

It is preferable that the first plastic film of the laminate is excellent in surface hardness and has both transparency and flexibility. Therefore, it is preferable that the first plastic film is an acrylic resin film, and particularly preferably a film containing polymethyl methacrylate (PMMA) as a main component.

The acrylic resin film is, for example, a film mainly composed of polymethyl methacrylate (PMMA) as described above. Further, the acrylic resin film may be, for example, the following film.

(1) A film made only of a polyalkyl acrylate resin.

(2) A film made of a resin containing a polyalkyl methacrylate as a main component. The film is obtained by including a copolymer rubber component as a soft resin, a conjugated diene polymer rubber, an alkanoate or the like in a polyalkyl methacrylate which is a hard resin. Since the soft resin is contained, the flexibility and toughness of the alkyl methacrylate resin can be improved.

(3) A film made of a resin obtained by alloying a polyalkyl acrylate resin containing no rubber component and another polymer resin.

Further, it is preferable that the thickness of the first plastic film is in the range of 50 μm to 250 μm.

Next, the organic-inorganic hybrid resin to which the fluorine compound is added as the resin for forming the hard coat layer of the laminate will be specifically described.

It is preferable that the organic-inorganic hybrid resin is an ultraviolet curable resin in which, for example, cerium oxide ultrafine particles having a photopolymerizable reactive functional group introduced thereon are dispersed. It is preferred that the ultrafine particles are substantially uniformly dispersed in the ultraviolet curable resin.

The photopolymerizable functional group is, for example, a polymerizable unsaturated group represented by a (meth) propylene decyloxy group.

The ultraviolet curable resin is, for example, an ultraviolet curable acrylic resin, an ultraviolet curable acrylic polyester resin, an ultraviolet curable polyester acrylate resin, an ultraviolet curable epoxy acrylate resin, or an ultraviolet curable polyol acrylate resin. And UV curable epoxy resin.

Preferably, the average particle diameter of the cerium oxide ultrafine particles is in the range of 0.001 μm to 0.5 μm. By using ultrafine particles having an average particle diameter in the above range, a hard coat layer excellent in optical properties such as transparency and excellent in hard coat layer properties can be formed. Further, in order to easily obtain the above effect, it is more preferable to use ultrafine particles having an average particle diameter in the range of 0.001 μm to 0.01 μm.

In order to improve optical properties such as transparency and hard coat performance, it is preferable that the content of the cerium oxide ultrafine particles is 20% by weight or more and 80% by weight based on the total weight of the resin forming the hard coat layer and the cerium oxide ultrafine particles. %the following. This is because, when the content of the cerium oxide ultrafine particles is less than 20% by weight, the strength of the surface is difficult to be sufficiently high, and when the content exceeds 80% by weight, the surface of the hard coat layer cannot be made transparent and smooth.

Next, the fluorine compound added to the organic-inorganic hybrid resin will be specifically described.

Specifically, the fluorine compound is, for example, a perfluoropolyether-containing compound having a carbon-carbon double bond.

A resin for forming a hard coat layer is prepared by adding the fluorine compound to the organic-inorganic hybrid resin. The surface of the hard coat layer formed of the resin is excellent in antifouling properties, particularly in preventing fingerprint adhesion. Further, the surface of the hard coat layer is a low friction surface having water and oil repellency. In addition, the hard coat layer has higher flexibility and excellent bendability.

In the case where the ratio of the active ingredient after removal of the solvent is expressed, the amount of the fluorine compound added is in the range of 0.1 to 5.0% by weight based on the total weight of the organic-inorganic hybrid resin and the fluorine compound. This is because when the amount of the fluorine compound added is less than 0.1% by weight, the toughness of the hard coat layer is not obtained, and when the amount of the fluorine compound added exceeds 5.0% by weight, the hardness of the hard coat layer is not sufficiently high.

The hard coat layer of the laminate was formed as follows. That is, the above-described organic-inorganic hybrid resin to which a fluorine compound is added is laminated on the surface of a plastic film as a base material. Then, the resin layer is cured by ultraviolet irradiation or the like. Thereby, a hard coat layer was obtained. In other words, the ultraviolet curable resin component is polymerized with the photopolymerization functional group of the ceria ultrafine particles by ultraviolet irradiation. As a result, the cerium oxide ultrafine particles are uniformly dispersed in the organic matrix by chemical bonds. Thereby, a hard coat layer containing a network crosslinked film was formed. Then, a film of a fluorine compound firmly bonded to the crosslinked film is formed on the surface of the hard coat layer.

The average hard coat layer preferably has an average film thickness of 1 μm or more and 50 μm or less. When the film thickness is less than 1 μm, the hardness of the surface is difficult to be sufficiently high. When the film thickness exceeds 50 μm, the flexibility of the hard coat layer is lowered. In order to obtain the film thickness in the above range, it is appropriate that the film thickness (wet film thickness) of the resin just laminated on the plastic film is in the range of about 2 μm to 100 μm.

The method for laminating the resin on the plastic film (base material) includes, for example, a gravure coating method, a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, and the like.

Light sources for ultraviolet light for photopolymerizing the ultraviolet curable resin include, for example, a low pressure mercury lamp, a medium pressure mercury lamp, a high pressure mercury lamp, an ultrahigh pressure mercury lamp, a carbon arc lamp, a metal halide lamp, and a xenon lamp.

The laminated, second plastic film of the body is for suppressing deformation and warpage of the first plastic film having a hard coat layer due to heat influence.

It is preferable that the second plastic film of the laminate has a material which is inexpensive, high in strength, and has transparency and flexibility. Therefore, it is preferred that the second plastic film be a polyester film. The polyester film is, for example, a polyethylene terephthalate (PET) film or a polyethylene naphthalate (PEN) film. In order to improve the quality of the laminate, the second plastic film is preferably a polyethylene naphthalate (PEN) film having excellent properties such as heat resistance. Further, in order to obtain an effect of significantly suppressing deformation and warpage of the first plastic film due to heat, the thickness of the second plastic film is preferably equal to or greater than the thickness of the first plastic film. Specifically, it is preferred that the thickness of the second plastic film is in the range of 50 μm to 500 μm.

The adhesive layer of the laminate is a layer for adhering the first plastic film and the second plastic film. From the viewpoints of transparency, weather resistance, durability, cost, and the like, the adhesive for forming the adhesive layer is particularly preferably an acrylic adhesive which is a transparent adhesive for optical use. Further, it is preferred that the thickness of the adhesive layer is in the range of 10 μm to 250 μm. When the thickness of the adhesive layer is less than 10 μm, sufficient adhesive strength may not be obtained. When the thickness of the adhesive layer exceeds 250 μm, the adhesive layer may adversely affect optical characteristics such as light transmittance of the laminate.

Further, the outermost surface of the second plastic film of the laminate, that is, the surface of the second plastic film opposite to the surface to which the first plastic film is adhered by the adhesive layer, may be provided with a hard coat for various purposes. Various functional layers such as a layer, a transparent conductive layer, and a printed decorative layer.

(Example)

Hereinafter, an embodiment of the laminate will be described in detail. However, the present laminate is not limited to the embodiment.

<Example 1>

First, the resin of Example 1 for forming the hard coat layer of the laminate of Example 1 was prepared. The resin of the above Example 1 had the following composition.

In the resin of the first embodiment, 10.0 parts by weight of an organic-inorganic hybrid resin (acrylic resin) containing an acrylic resin having a photocatalytic functional group-incorporated ceria ultrafine particles introduced therein was added (JSR shares). Co., Ltd., OPSTAR KZ6445, a solution containing 50% by weight of solid content), 0.8 parts by weight of a fluorine compound as an additive (manufactured by Daikin Industries Co., Ltd., OPTOOL DAC-HP, a solution containing 20% by weight of a fluorine compound component) And 6.4 parts by weight of methyl ethyl ketone as a diluent solvent.

The first plastic film of the laminate of Example 1 was a polymethyl methacrylate (PMMA) film (manufactured by Sumitomo Chemical Co., Ltd., TECHNOLLOY S001G) having a thickness of 125 μm. The resin of Example 1 was laminated on one surface of the film by a bar coating method so that the film thickness after curing was 15 μm. After the solvent was dried, the resin layer was cured by irradiating ultraviolet rays of 440 mJ/cm ² with a high pressure mercury lamp under a nitrogen purge. Thus, a first plastic film of the laminate of Example 1 having a hard coat layer was produced.

An acrylic optical transparent adhesive is laminated on the surface of the first plastic film on which the hard coat layer is not formed. Thereby, a binder layer having a thickness of 25 μm was formed. Then, the adhesive layer is passed through and the second plastic film is adhered to the first plastic film. Thus, the laminate of Example 1 was produced. As the second plastic film, a biaxially stretched polyethylene terephthalate (PET) film (manufactured by Teijin DuPont Film Co., Ltd.) having a thickness of 125 μm was used.

<Example 2>

The laminate of Example 2 was the same as the laminate of Example 1 except that the thickness of the second plastic film was different. That is, in the second embodiment, as in the first embodiment, the adhesive layer having a thickness of 25 μm was formed on the surface of the first plastic film having the hard coat layer produced in Example 1 on which the hard coat layer was not formed. Then, a second plastic film is adhered to the first plastic film through the adhesive layer. Thus, the laminate of Example 2 was produced. As the second plastic film, a biaxially stretched polyethylene terephthalate (PET) film (manufactured by Teijin DuPont Film Co., Ltd.) having a thickness of 188 μm was used.

<Example 3>

The laminate of Example 3 was the same as the laminate of Example 1 except that the thickness of the adhesive layer was different. That is, in Example 3, an acrylic optical transparent adhesive was laminated on the surface of the first plastic film having a hard coat layer produced in Example 1 on which the hard coat layer was not formed. Thereby, a 50 μm thick adhesive layer was formed. Then, in the same manner as in the first embodiment, the second plastic film was adhered to the first plastic film by the adhesive layer. Thus, the laminate of Example 3 was produced. As the second plastic film, a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 125 μm was used.

<Example 4>

The laminate of Example 4 was the same as the laminate of Example 1 except that the material of the second plastic film was different. That is, in the fourth embodiment, as in the first embodiment, the surface of the first plastic film having the hard coat layer produced in Example 1 on which the hard coat layer was not formed was formed with a thickness of 25 μm. . Then, a second plastic film is adhered to the first plastic film through the adhesive layer. Thus, the laminate of Example 4 was produced. As the second plastic film, a biaxially stretched polyethylene naphthalate (PEN) film (manufactured by Teijin DuPont Film Co., Ltd.) having a thickness of 125 μm was used.

<Comparative Example 1>

For the comparison, the laminate of Comparative Example 1 was produced. The laminate of Comparative Example 1 was the same as the laminate of Example 1 except that the adhesive layer and the second plastic film were not provided. That is, the laminate of Comparative Example 1 was the first plastic film having a hard coat layer produced in Example 1.

<Comparative Example 2>

Further, a laminate of Comparative Example 2 was produced. The laminate of Comparative Example 2 was the same as the laminate of Example 1 except that the material of the first plastic film was different. In Comparative Example 2, as the first plastic film, a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 125 μm was used.

In the same manner as in Example 1, the resin of Example 1 was laminated on one surface of the biaxially stretched polyethylene terephthalate (PET) film having a thickness of 125 μm. After the solvent was dried, the resin was cured. Thus, a first plastic film of the laminate of Comparative Example 2 having a hard coat layer was produced. Then, in the same manner as in the first embodiment, a binder layer was formed on the surface of the first plastic film on which the hard coat layer was not formed. Then, a second plastic film is adhered to the first plastic film through the adhesive layer. Thus, the laminate of Comparative Example 2 was produced. As the second plastic film, a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 125 μm was used.

<Comparative Example 3>

Further, a laminate of Comparative Example 3 was produced. The laminate of Comparative Example 3 was the same as the laminate of Example 1 except that the material (resin) of the hard coat layer was different. The resin of Comparative Example 3 was the same as the resin of the Example except that the fluorine compound was not added.

That is, the resin of Comparative Example 3 had the following component composition. In the resin, an organic-inorganic hybrid resin (JSR Co., Ltd. product, OPSTAR), which is an acrylic resin to which the cerium oxide ultrafine particles having a photopolymerizable functional group is introduced, is added to the resin. KZ6445, a solution containing 50% by weight of a solid component) and 6.7 parts by weight of methyl ethyl ketone as a diluent solvent.

In the same manner as in Example 1, the first plastic film of the laminate of Comparative Example 3 was a polymethyl methacrylate (PMMA) film having a thickness of 125 μm. The resin of Comparative Example 3 was laminated, dried, and cured on one surface of the film under the same conditions as in the above Example 1. Thus, a first plastic film of the laminate of Comparative Example 3 having a hard coat layer was produced. Then, in the same manner as in the first embodiment, a binder layer was formed on the surface of the first plastic film on which the hard coat layer was not formed. Then, a second plastic film is adhered to the first plastic film through the adhesive layer. Thus, the laminate of Comparative Example 3 was produced. As the second plastic film, a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 125 μm was used.

The flexibility, pencil hardness, heat resistance, and warpage of the seven types of laminates obtained in the above-described manner (that is, the laminates of Examples 1 to 4 and Comparative Examples 1 to 3) were evaluated. The evaluation results are shown in Table 1 together with the sample contents (structure and material) of each laminate. Further, in Table 1, the PMMA labeled as the material of the first plastic film and the second plastic film was a polymethyl methacrylate film. Similarly, PET is a polyethylene terephthalate film and PEN is a polyethylene naphthalate film. Further, the characteristics of each laminate were evaluated as described below.

In the evaluation of flexibility, the laminate was wound around a cylinder having a diameter of 80 mm, and the wound laminate was observed for cracks and peeling. In Table 1, when no crack or peeling was observed on the hard coat layer, it was marked as "○", and when cracking or peeling was observed, it was marked as "X".

The pencil hardness was evaluated in accordance with JIS K5600-5-4. A plurality of pencils having different hardnesses were brought into contact with the surface of the laminate sample at an angle of 45°. Then, after applying a load on the pencil, a scratch test was performed on the surface of the sample. Then, the hardest pencil hardness that did not scratch the surface was taken as the pencil hardness of the sample.

In the evaluation of heat resistance, a square laminated body having a side length of 10 cm was cut out as a sample. The sample was heat-treated for 60 minutes in a hot air dryer adjusted to 150 °C. In Table 1, the case where the shape (square) of the sample is not changed is indicated as "○", and when the shape is deformed, it is marked as "X".

In the evaluation of the warpage, a sample which was not deformed in the heat resistance evaluation was used. The sample was placed on a horizontal surface, and the distance between the four corners of the sample and the horizontal plane (the amount at which the four corners of the sample were lifted from the horizontal plane) was measured, and the average value was taken as the warpage value.

As shown in the evaluation results of Table 1, the laminates of Examples 1 to 4 had pencil hardness of up to 5H. That is, the laminate has good scratch resistance and abrasion resistance. Further, even when the laminate was bent, cracks or peeling did not occur on the hard coat layer. That is, the laminate described above is excellent in flexibility. Further, from the results of evaluation of heat resistance of the laminate including heat treatment at 150 ° C for 60 minutes, it was found that the laminate described above was substantially free from deformation due to heat. Further, the laminate has a small warpage due to heat. That is, the laminate described above is excellent in heat resistance. Therefore, it can be confirmed that the laminate described above has excellent practicability as a laminate for optics, and the laminate for optics is used as a protective film for an image display device or the like.

On the other hand, the laminate of Comparative Example 1 is a polymethyl methacrylate (PMMA) film having a hard coat layer, which does not have a binder layer and a second plastic film. The laminate of Comparative Example 1 had good pencil hardness and flexibility, but was greatly deformed during heat treatment. That is, the laminate has poor heat resistance.

The laminate of Comparative Example 2 had a first plastic film made of a polyethylene terephthalate film. In the laminate of Comparative Example 2, the adhesion between the hard coat layer as the organic-inorganic hybrid coating film and the first plastic film was poor. Therefore, when the laminate is bent, peeling or cracking occurs at the interface between the hard coat layer and the first plastic film. That is, the laminate has poor flexibility.

In the laminate of Comparative Example 3, the material of the hard coat layer was a resin to which no fluorine compound was added. The hard coat layer of the laminate of Comparative Example 3 had no flexibility as compared with Examples 1 to 4. Therefore, when the laminated body was wound around a cylinder of 80 mm diameter to be bent, cracks were generated on the hard coat layer. That is, the laminate has poor flexibility.

The laminates of Comparative Example 2 and Comparative Example 3 had a pencil hardness of 4H, which was softer than the laminates of Examples 1 to 4. In other words, in the evaluation of the laminate of Comparative Example 2 and Comparative Example 3, the pencil hardness (sufficient pencil hardness) required for the optical laminate was not obtained.

As described above, the laminate includes a first plastic film and a second plastic film. A hard coat layer is provided on one surface of the first plastic film. The second plastic film is laminated on the other side of the first plastic film by a layer of adhesive. The first plastic film is an acrylic resin film. The hard coat layer is an organic-inorganic hybrid cover film. The organic-inorganic hybrid coating film contains an additive made of a fluorine compound.

Further, the first plastic film of the laminate is an acrylic resin film. Further, the hard coat layer provided on the first plastic film is an organic-inorganic hybrid cover film. Therefore, the adhesion between the first plastic film (base film) and the hard coat layer is good. As a result, peeling or cracking is less likely to occur at the interface between the hard coat layer and the first plastic film. That is, the laminate is excellent in flexibility and transparency, has a high hardness surface, and is excellent in scratch resistance and abrasion resistance.

Further, the hard coat layer of the laminate is an organic-inorganic hybrid coating film containing an additive made of a fluorine compound. Therefore, even if the laminate is bent, cracks are less likely to occur on the hard coat film. Therefore, the laminate is excellent in flexibility. Further, the smoothness of the surface of the hard coat layer is improved by the fluorine compound. Therefore, since the surface of the hard coat layer becomes easy to slide, the surface is not easily scratched. Therefore, the laminate has good scratch resistance and abrasion resistance. Further, in the laminate, a second plastic film is adhered to the other surface of the first plastic film by the adhesive layer. Therefore, deformation and warpage due to thermal influence can be suppressed. Therefore, the laminated body is excellent in practicability as a protective film for an image display device or the like.

Industrial applicability

The laminate of one embodiment of the present invention has excellent transparency, excellent flexibility, and sufficient pencil hardness. That is, the laminate has excellent scratch resistance and abrasion resistance. Moreover, the laminate has excellent heat resistance. Therefore, deformation and warpage due to heat influence are less likely to occur. Therefore, the laminate of the present invention is particularly useful as a laminate for optics, and the laminate for optics is used instead of the optical glass used as a protective film for a conventional image display device.

Claims (10)

A laminate comprising: a first plastic film having a hard coat layer on one face; and a second plastic film laminated on the other face of the first plastic film by an adhesive layer, the laminated body The first plastic film is an acrylic resin film, and the resin forming the hard coat layer contains an organic-inorganic hybrid resin to which a fluorine compound is added. The laminate of the first aspect of the invention, wherein the fluorine compound is added in an amount of 0.1% by weight or more and 5.0% by weight or less based on the total weight of the resin forming the hard coat layer and the fluorine compound. The laminate of claim 1, wherein the resin forming the hard coat layer contains cerium oxide, the total weight of the resin forming the hard coat layer and the cerium oxide, the cerium oxide The content is 20% by weight or more and 80% by weight or less. The laminate of claim 1, wherein the second plastic film is a polyethylene terephthalate film or a polyethylene naphthalate film. In the laminate of the first aspect of the invention, the resin forming the hard coat layer is an ultraviolet curable resin in which fine particles of ceria having a photopolymerizable functional group introduced into the surface are dispersed. The laminate according to claim 1, wherein the acrylic resin film is a resin containing a polymethyl methacrylate resin as a main component. The laminate of the sixth aspect of the invention, wherein the fluorine compound is added in an amount of 0.1% by weight or more and 5.0% by weight or less based on the total weight of the resin forming the hard coat layer and the fluorine compound. The laminate of claim 6, wherein the resin forming the hard coat layer contains cerium oxide, the total weight of the resin forming the hard coat layer and the cerium oxide, the cerium oxide The content is 20% by weight or more and 80% by weight or less. The laminate of claim 6 wherein the second plastic film is a polyethylene terephthalate film or a polyethylene naphthalate film. In the laminate of the sixth aspect of the invention, the resin forming the hard coat layer is an ultraviolet curable resin in which fine particles of ceria having a photopolymerizable functional group introduced into the surface are dispersed.