JP2011071055A - Low insect-attraction sheet, and luminaire using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low insect-attraction sheet excellent in a low insect trapping property, moldability and design, and to provide a Japanese style luminaire. <P>SOLUTION: The low insect-attraction sheet includes (a) a base layer A and a pattern layer at least one of which contains an ultraviolet absorbent, or (b) a base layer A, a pattern layer and a base layer B laminated in order at least one of which contains an ultraviolet absorbent, or (c) a base layer A, a pattern layer and a low insect-attraction layer with an ultraviolet absorbent contained in at least the low insect trapping layer, and those sheets have a total light transmittance of 10% or less at the wavelength of 405 nm and a total light transmittances of 30% or higher at the wavelengths of 555 nm and 945 nm. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a low insect attracting sheet and a lighting apparatus using the same.

  Since insects such as insects, pests, and moths generally have a habit of traveling toward a light source including wavelengths in the ultraviolet region of 410 nm or less, particularly in the range of 340 to 410 nm, A group of light sources such as white fluorescent lamps that radiate light in the region may cluster, and this tendency is remarkable outdoors. Also, indoors, especially in living rooms, the insects attracted by the indoor lighting are very annoying and unhygienic, and the dirt accumulated by the insects on the lighting cover is unsightly and uncomfortable. Is. In recent years, with increasing awareness of living space, in order to reduce insects attracted by light sources, there has been a demand for luminaires that have a low susceptibility to attract insects.

  As a lighting device having low susceptibility, Patent Document 1 discloses a technique relating to a resin lighting cover obtained by molding and stretching a resin plate containing a specific ultraviolet absorber. However, since the cover obtained by this technique is obtained by molding and stretching, it does not have decoration such as a pattern, and it cannot express a complicated shape due to lack of workability due to thickness. There was a problem that it was poor in nature and could not respond to diversified tastes and demands sufficiently.

  On the other hand, as an illumination cover used for a lighting device having excellent design properties, for example, in Patent Document 2, a transparent synthetic resin thin plate such as an acrylic resin thin plate is bonded to both sides of a Japanese paper sheet such as Japanese paper or Japanese paper rayon paper. A technique related to the decorative synthetic resin sheet is disclosed. The decorative synthetic resin sheet is excellent in design that can express a complicated shape because the thickness of the resin sheet used is as thin as about 50 μm, but due to the limitation of the thickness of the resin sheet, There was a problem that the amount of addition was insufficient and the low insecticidal properties could not be sufficiently provided.

JP 2000-67629 A JP-A-8-103990

  Under such circumstances, the present invention aims to provide a low worm sheet having excellent design properties while having excellent low worm resistance and moldability, and a Japanese-style lighting apparatus using the same. To do.

  As a result of intensive studies to achieve the above object, the present inventors have found that the above problem can be solved by providing a layer that can contain a predetermined amount of an ultraviolet absorber in the sheet. The present invention has been completed based on such findings.

That is, the present invention
(1) A low worm sheet having a base material layer A and a pattern layer and containing an ultraviolet absorber in at least one of these layers, wherein the total light transmittance of the sheet at a wavelength of 405 nm is 10%. A low worm sheet having a total light transmittance of 30% or more at a wavelength of 555 nm and 945 nm,
(2) A substrate layer A, a pattern layer, and a substrate layer B are laminated in order, and is a low worm sheet containing an ultraviolet absorber in at least one of these layers, at a wavelength of 405 nm of the sheet A low worm sheet having a total light transmittance of 10% or less and a total light transmittance of 30% or more at wavelengths of 555 nm and 945 nm,
(3) A low absorptive sheet having a base layer A, a pattern layer, and a low absorptive functional layer, and containing an ultraviolet absorber in at least the low arousal functional layer, the total light transmittance of the sheet at a wavelength of 405 nm Is a 10% or less, and a low worm sheet having a total light transmittance of 30% or more at wavelengths of 555 nm and 945 nm,
(4) Furthermore, the low worm sheet according to any one of the above (1) to (3), which has an antifouling layer on the outermost surface,
(5) A wooden frame (a material having a wood-tone design is used as the low worm sheet according to any one of (1) to (4), further including at least one of the following characteristics (i) to (iii): A Japanese-style lighting fixture cover that is affixed to or embedded in the case) and (i) the base material layer A or the base material layer B contains a cut piece of Japanese paper or fabric (ii) a pattern layer, (Iii) a Japanese-style lighting fixture comprising the Japanese-style lighting fixture cover according to (5) above, which is a Japanese paper pattern or a fabric pattern (iii) and further has a layer made of Japanese paper or a fabric,
Is to provide.

  ADVANTAGE OF THE INVENTION According to this invention, while having the outstanding design property, the low insect attracting sheet which has the outstanding low insect attractivity and moldability, and a Japanese-style lighting fixture using the same can be obtained.

It is a schematic diagram which shows the cross section of the low worm insect sheet | seat of this invention. It is a schematic diagram which shows the cross section of the low worm insect sheet | seat of this invention. It is a schematic diagram which shows the cross section of the low worm insect sheet | seat of this invention.

[Low insect repellent sheet]
The low worm sheet of the present invention has (a) a substrate layer A and a pattern layer, and at least one of these layers contains an ultraviolet absorber (hereinafter sometimes referred to as “aspect (a)”). (B) A substrate layer A, a pattern layer, and a substrate layer B are laminated in order, and at least one of these layers contains an ultraviolet absorber (hereinafter, referred to as embodiment (b)). ), Or (c) an embodiment (hereinafter referred to as embodiment (c)) which has a base material layer A, a pattern layer, and a low susceptibility functional layer, and at least of these layers contains an ultraviolet absorber. The total light transmittance at a wavelength of 405 nm is 10% or less, and the total light transmittance at wavelengths of 555 nm and 945 nm is 30% or more, respectively. is there.
The structure of the low insect attracting sheet of this invention is demonstrated using FIGS. FIG. 1 is a schematic view showing a cross-section of a low worm sheet 1 of the present invention having the above-described embodiment (a). FIG. 2 is a schematic view showing a cross-section of the low worm sheet 1 of the present invention having the above-described aspect (b). FIG. 3 is a schematic view showing a cross section of one example of a preferred layer structure of the low worm sheet 1 of the present invention having the above-described aspect (c). The low worming sheet 1 shown in FIG. 3 is obtained by laminating a low worming functional layer 31, a pattern layer 5, a low worming functional layer 32, a colored solid layer 7 and an antifouling layer 6 on the surface of the base layer A in this order. is there.

<Ultraviolet absorber>
The low absorptive property of the low absorptive sheet of the present invention is expressed by an ultraviolet absorber, and the ultraviolet absorber is contained in at least one of the base layer A and the pattern layer 5 in the aspect (a). In the aspect (b), it is essential to be contained in at least one of the base material layer A, the base material layer B, and the pattern layer 5, and in the aspect (c), it is contained in at least the low worm-insulating functional layer 3. It is essential. Further, the ultraviolet absorber is also preferably contained in the adhesive layer 4, the antifouling layer 6 and the colored solid layer 7 which will be described later.

The content of the ultraviolet absorber in the low worm sheet of the present invention is about 1 to 50 g / m ² , preferably 5 to 40 g / m ² , and more preferably 10 to 30 g / m ² . If the content of the ultraviolet absorber is within the above range, sufficient mechanical properties such as adhesion and solvent resistance can be ensured while exhibiting sufficient low insecticidal properties.

The ultraviolet absorbent used in the present invention can be used without limitation as long as it has ultraviolet absorbing performance, but at the same time as obtaining the excellent low susceptibility, when the low worm sheet of the present invention is applied to a lighting device In view of the above, it is desirable to select appropriately from the viewpoint of securing a high total light transmittance in the visible light region and the infrared region.
Among these, an ultraviolet absorber having a maximum absorption wavelength between 250 and 400 nm is preferably used. By setting the maximum absorption wavelength of the ultraviolet absorber within the above range, the total light transmittance of the low repellant sheet is reduced in the ultraviolet region that attracts insects and can be maintained high in the visible light region and the infrared region. The low moth-absorbing sheet of the invention is preferable because it has an excellent low moth-repellency and can be applied to lighting equipment and the like.
Preferred examples of such an ultraviolet absorber include benzophenone-based, benzotriazole-based, benzoate-based, and triazine-based ultraviolet absorbers. Among these, a benzotriazole type is preferable from the viewpoint of ensuring excellent low insect repellency and high total light transmittance in the visible light region and the infrared region.

  Examples of the benzotriazole ultraviolet absorber include 2-ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro-2H-benzotriazol-2-yl) phenyl] propionate (“TINUVIN109” ( Product name): Ciba Specialty Chemicals Co., Ltd.), 2- (2H-benzotriazol-2-yl) -6- (linear and side chain dodecyl) -4-methylphenol ("TINUVIN 171" (trade name): Ciba Specialty Chemicals Co., Ltd.), 2- [5-chloro (2H) -benzotriazol-2-yl] -4-methyl-6- (tert-butyl) phenol (“TINUVIN 326” (trade name): Ciba Specialty Chemicals), 2- (2H-benzotriazol-2-yl) -4,6 Di-tert-pentylphenol (“TINUVIN 328” (trade name): manufactured by Ciba Specialty Chemicals), 2- (2′-hydroxy-5′-methylphenyl) benzotriazole, 2- (2′-hydroxy-3) ', 5'-di-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-3'-tert-butyl-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-3', 5'-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3 '-(3 ", 4", 5 ", 6" -tetrahydrophthalimidomethyl) -5'-methyl Phenyl) benzotriazole, 2,2-methylenebis (4- (1,1,3,3-tetramethylbutyl) -6- (2H-ben Triazol-2-yl) phenol), and 2- (such as 2'-hydroxy-3'-tert-butyl-5'-methylphenyl) -5-chloro benzotriazole. Among them, 2-ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro-2H-benzotriazol-2-yl) phenyl] propionate (“TINUVIN109” (trade name): Ciba Specialty Chemicals Co., Ltd.), 2- [5-Chloro (2H) -benzotriazol-2-yl] -4-methyl-6- (tert-butyl) phenol (“TINUVIN 326” (trade name): Ciba Specialty Chemicals ( And 2- (2H-benzotriazol-2-yl) -4,6-di-tert-pentylphenol (“TINUVIN 328” (trade name): manufactured by Ciba Specialty Chemicals Co., Ltd.) are preferable. -Ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro -2H- benzotriazol-2-yl) phenyl] propionate ( "TINUVIN109" (trade name): manufactured by Ciba Specialty Chemicals Co.) is particularly preferred. These ultraviolet absorbers can be used alone or in admixture of two or more.

<Base material layer>
Although the base material layer in this invention will not be specifically limited if it is normally used as a base material, Preferably a plastic film, a plastic sheet, etc. can be suitably selected according to a use.

  As a plastic film or a plastic sheet, what consists of various synthetic resins is mentioned. Synthetic resins include low density polyethylene resins (including linear low density polyethylene resins), medium density polyethylene resins, high density polyethylene resins, ethylene-α olefin copolymers, polypropylene resins, polymethylpentene resins, polybutene resins, ethylene. -Polyolefin resins such as propylene copolymer, propylene-butene copolymer, olefinic thermoplastic elastomer or mixtures thereof; polyethylene terephthalate resin, polybutylene terephthalate resin, polyethylene naphthalate-isophthalate copolymer resin, polyester heat Polyester resins such as plastic elastomers; Acrylic resins such as poly (meth) methyl acrylate resin, poly (meth) ethyl acrylate resin, poly (meth) butyl acrylate resin; nylon 6 or Polyamide resins represented by like nylon 66; polystyrene resins; polycarbonate resins; polyarylate resin; cellulose triacetate resins, cellulose resins such as cellophane and the like or a polyimide resin.

  The base material layer can be used as a film or a sheet alone or in combination of two or more of the synthetic resins described above. The synthetic resin is preferably a polyolefin resin or a polyester resin, and in particular, compatibility with the low worm-insulating functional layer, which will be described later, that no toxic chlorine-based gas is generated when the manufactured decorative sheet is disposed of by incineration and disposal, and the cost From such viewpoints, a polyolefin resin is more preferable, and a polypropylene resin is particularly preferable. Moreover, in the case of the aspect (ii) in which the base material layer is provided with the base material layer A and the base material layer B, the base material layer A and the base material layer B may be the same or different. What is necessary is just to select suitably from what was done.

  The substrate layer may be a commercially available plastic film or plastic sheet made of the above-described synthetic resin, or may be used as a film or sheet by a film forming method such as a calendar method, an inflation method, or a T-die extrusion method. Although there is no restriction | limiting in particular about the thickness of a base material layer, When moldability etc. are considered, it is about 20-200 micrometers normally, Preferably it is 20-150 micrometers, More preferably, it is the range of 50-150 micrometers. In the case of the embodiment (b) in which the base material layer is provided in two layers of the base material layer A and the base material layer B, the thickness of the base material layer A and the thickness of the base material layer B may be the same or different. Good.

The base material layer A and the base material layer B can contain the above-described ultraviolet absorber, and it is only necessary to select whether to contain them depending on the content of the ultraviolet absorber in other layers. Usually, for the purpose of improving the low susceptibility, the base material layer preferably contains an ultraviolet absorber, and the content of the ultraviolet absorber is about 1 to 50 g / m ² , preferably 5 to 40 g / m. m ² , more preferably 10 to 30 g / m ² . Moreover, the compounding quantity of the ultraviolet absorber with respect to 100 mass parts of synthetic resins is about 0.1-10 mass parts normally.

The base material layer can be subjected to a physical or chemical surface treatment such as an oxidation method or an unevenness method on one side or both sides, if desired, in order to improve the adhesion with the layer provided thereon.
Examples of the oxidation method include corona discharge treatment, chromium oxidation treatment, flame treatment, hot air treatment, ozone / ultraviolet treatment method, and examples of the unevenness method include a sand blast method and a solvent treatment method. These surface treatments are appropriately selected depending on the type of substrate, but generally, a corona discharge treatment method is preferably used from the viewpoints of effects and operability.
In addition, the base material layer may be subjected to a treatment such as forming a primer layer for the purpose of enhancing interlayer adhesion with other adjacent layers.

  In addition, as a base material, a film or sheet obtained by a film forming method such as a T-die extrusion method is used by adding a material such as Japanese paper or fabric, which is appropriately finely cut to a synthetic resin as described above, by cutting or the like. You can also. By using such a film or sheet as a base material, a Japanese-style design can be imparted to the sheet of the present invention.

<< Picture layer 5 >>
The pattern layer 5 is a layer provided indispensable in order to give the design property to the low worm insect sheet | seat of this invention.
The pattern employed in the pattern layer 5 is appropriately selected depending on the application. For example, a Japanese paper pattern, a fabric pattern imitating a cloth or cloth pattern, a wood pattern, a marble pattern (for example, a travertine marble pattern) There are patterns such as parquet and patchwork that combine these, such as a stone pattern that imitates the surface of rocks, tiled patterns, and brickwork patterns. These patterns are formed by multi-color printing with normal yellow, red, blue, and black process colors, and also by multi-color printing performed by preparing individual color plates constituting the pattern. .
When applying the low moth-absorbing sheet of the present invention to a lighting fixture, the pattern applied to the pattern layer 5 is not particularly limited as long as the performance desired as a lighting fixture such as total light transmittance is ensured, but the color is Pale color systems such as white, milky white, and light yellow are preferable, and when used for a Japanese-style lighting fixture cover or the like, a light color system and a Japanese paper pattern or fabric pattern are preferable.

  As the ink composition used for forming the picture layer 5, a binder and a colorant such as a pigment and a dye, an extender pigment, a solvent, a stabilizer, a plasticizer, a catalyst, and a curing agent are appropriately mixed. The binder is not particularly limited. For example, polyurethane resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate-acrylic copolymer resin, chlorinated polyethylene resin, Any one of chlorinated polypropylene resin, acrylic resin, polyester resin, polyamide resin, butyral resin, polystyrene resin, nitrocellulose resin, cellulose acetate resin, etc., alone or 2 A mixture of seeds or more is used. Among these, it is preferable to use a polyurethane resin, a vinyl acetate resin, an acrylic resin, a polyester resin, a cellulose resin, a polyamide resin, or the like alone or in combination of two or more.

  Colorants include carbon black (black), iron black, titanium white, antimony white, yellow lead, titanium yellow, petal, cadmium red, ultramarine, cobalt blue and other inorganic pigments, quinacridone red, isoindolinone yellow, phthalocyanine Organic pigments or dyes such as blue, metal pigments made of scaly foil pieces such as aluminum and brass, pearlescent pigments made of scaly foil pieces such as titanium dioxide-coated mica and basic lead carbonate, and the like are used.

  The pattern layer 5 is formed by printing various patterns as described above using an ink composition and a printing machine. In general, it can be formed with ink by a known printing method such as gravure printing, offset printing, silk screen printing, transfer printing from a transfer sheet, and the like.

Moreover, the ink composition used for formation of the pattern layer 5 can contain said ultraviolet absorber, What is necessary is just to select whether it is made to contain by content of the ultraviolet absorber of another layer. The content of the ultraviolet absorber in the ink composition is preferably about 0.1 to 5% by mass.
The thickness of the pattern layer 5 is preferably about 1 to 20 μm. If the thickness of the pattern layer 5 is within the above range, sufficient design properties can be obtained while ensuring the performance desired as a lighting fixture.

  In FIG. 1, the pattern layer 5 is between the base material layer A and the antifouling layer 6, in FIG. 2 between the base material layer A and the colored solid layer 7, and in FIG. Is provided between the colored solid layer 7 and the colored solid layer 7, and it may be appropriately selected depending on a desired design feeling. For the purpose of improving the design properties of the low worm-insulating sheet of the present invention, it is preferable to provide a colored solid layer 7 to be described later, and various design effects can be obtained by combining the pattern layer 5 and the colored solid layer 7. Is possible.

  In order to enhance the Japanese-style design of the low moth-absorbing sheet of the present invention, as the positional relationship between the pattern layer 5 and the colored solid layer 7 that is preferably provided, the colored solid layer 7 may be located outside the pattern layer 5. preferable. Here, the outside refers to the one closer to one of the base materials, or the one closer to the antifouling layer 6 when the antifouling layer 6 is provided, for example, when the sheet of the present invention is used for illumination. , Closer to the side that the user sees.

  As a preferable layer configuration in the case where the pattern layer 5 and the colored solid layer 7 are provided, for example, in the mode (a) shown in FIG. 1, a configuration in which the pattern layer 5, the colored solid layer 7 and the antifouling layer are laminated in this order. Is preferred. In the aspect (b), in addition to the configuration shown in FIG. 2, a configuration in which the base layer B, the pattern layer 5, the colored solid layer 7, and the antifouling layer 6 are stacked in this order from the viewpoint of expressing a more vivid pattern. Preferably mentioned. In addition, in the mode (c), in addition to the configuration shown in FIG. 3, a configuration in which the pattern layer 5, the low susceptibility functional layer 32, the colored solid layer 7 and the antifouling layer 6 are laminated in this order, the low susceptibility functional layer 32, the design The structure etc. which laminated | stacked the layer 5, the colored solid layer 7, and the antifouling layer 6 in order are preferable.

《Low-insect functional layer 3》
The low worm-insulating functional layer 3 is a layer provided for imparting low worm-inducing properties in the embodiment (c) of the sheet of the present invention. The low worm-insulating functional layer 3 may be provided as a single layer between the base material layer A and the pattern layer 5 or as a single layer on the pattern layer 5 provided on the base material layer A. May be provided. Further, as shown in FIG. 3, the low-attracting functional layer may be provided in two layers or a plurality of layers including the low-attracting functional layers 31 and 32, or may be provided in a single layer. From the viewpoint of obtaining an excellent low susceptibility by incorporating a large amount of an ultraviolet absorber in the sheet of the present invention, the low susceptibility functional layer 3 is preferably a plurality of two or more layers.

  The low worm-insulating functional layer 3 can be obtained, for example, by curing a curable resin composition containing a curable resin such as an ionizing radiation curable resin or a thermosetting resin and the ultraviolet absorber. The curable resin is preferably an ionizing radiation curable resin, and the low worm-insulating functional layer 3 is preferably formed by crosslinking and curing an ionizing radiation curable resin composition containing an ionizing radiation curable resin and an ultraviolet absorber. .

<Ionizing radiation curable resin composition>
The ionizing radiation curable resin composition used for forming the low worm-insulating functional layer 3 is a composition containing an ionizing radiation curable resin and an ultraviolet absorber, and is a composition containing various other additives as necessary. . Here, the ionizing radiation curable resin is a resin having an energy quantum capable of crosslinking and polymerizing molecules in an electromagnetic wave or a charged particle beam, that is, a resin that is crosslinked and cured by irradiation with ultraviolet rays or electron beams. It is.

  The content of the ultraviolet absorber in the ionizing radiation curable resin composition needs to be 1 to 55% by mass with respect to the total amount of the ionizing radiation curable resin and the ultraviolet absorber, and 5 to 50% by mass. Is preferable, 5-40 mass% is more preferable, and 10-30 mass% is further more preferable. When the content of the ultraviolet absorber is within the above range, sufficient mechanical properties such as adhesion and solvent resistance can be ensured while exhibiting sufficient low insecticidal properties.

<Ionizing radiation curable resin>
The ionizing radiation curable resin used in the present invention can be appropriately selected from a polymerizable monomer, a polymerizable oligomer or a prepolymer conventionally used as an ionizing radiation curable resin. From the viewpoint of obtaining characteristics, those that are difficult to bleed out, have a coatability of about 95 to 100% as a solid content standard, and are less likely to cause curing shrinkage when cured. Representative examples of such ionizing radiation curable resins are described below. “(Meth) acrylate” means “acrylate or methacrylate”.

  As the polymerizable monomer, a (meth) acrylate monomer having a radically polymerizable unsaturated group in the molecule is suitable, and in particular, a polyfunctionality having two or more ethylenically unsaturated bonds in the molecule ( (Meth) acrylate is preferred, and one kind may be used alone, or two or more kinds may be used in combination. As a functional group number, 2-8 are preferable, 2-6 are more preferable, and 3-4 are more preferable.

  In the present invention, together with the polyfunctional (meth) acrylate, for the purpose of adjusting the viscosity, monofunctional (meth) acrylates such as methyl (meth) acrylate are within a range that does not impair the purpose of the present invention. It can be used together as appropriate. A monofunctional (meth) acrylate may be used individually by 1 type, and may be used in combination of 2 or more type.

  Next, as the polymerizable oligomer, an oligomer having a radically polymerizable unsaturated group in the molecule, for example, epoxy (meth) acrylate, urethane (meth) acrylate, polyester (meth) acrylate, polyether (meth) Preferred examples include acrylate oligomers. Among these oligomers, polyfunctional polymerizable oligomers are preferable, and the number of functional groups is preferably 2 to 16, more preferably 2 to 8, and still more preferably 2 to 6.

  Furthermore, other polymerizable oligomers include polybutadiene (meth) acrylate oligomers with high hydrophobicity that have (meth) acrylate groups in the side chain of polybutadiene oligomers, and silicone (meth) acrylate oligomers that have polysiloxane bonds in the main chain. In a molecule such as an aminoplast resin (meth) acrylate oligomer modified with an aminoplast resin having many reactive groups in a small molecule, or a novolak type epoxy resin, bisphenol type epoxy resin, aliphatic vinyl ether, aromatic vinyl ether, etc. There are oligomers having a cationic polymerizable functional group. These polymerizable oligomers may be used individually by 1 type, and may be used in combination of 2 or more type.

  When an ultraviolet curable resin is used as the ionizing radiation curable resin, it is desirable to add about 0.1 to 5 parts by mass of a photopolymerization initiator with respect to 100 parts by mass of the ultraviolet curable resin. The initiator for photopolymerization can be appropriately selected from those conventionally used and is not particularly limited.

  In the present invention, it is preferable to use an electron beam curable resin as the ionizing radiation curable resin. This is because the ionizing radiation curable resin composition in the present invention contains an ultraviolet absorber, and in the case of irradiation with ultraviolet rays, the ultraviolet irradiation amount may be insufficient. Although preparation may be required, in the case of electron beam irradiation, such preparation is unnecessary, and stable curing characteristics can be obtained efficiently.

<Various additives>
Various additives are blended in the curable resin composition used in the present invention in accordance with the desired physical properties of the obtained low worm-insulating functional layer. Examples of the additive include a polymerization inhibitor, a crosslinking agent, an antistatic agent, an adhesion improver, an antioxidant, a leveling agent, a thixotropic agent, a coupling agent, a plasticizer, an antifoaming agent, a filler, and a solvent. Is mentioned.

<Adhesive layer 4>
The adhesive layer 4 is a layer provided as necessary between the base material layer A and the base material layer B. The adhesive layer 4 is provided in different locations depending on the layer structure and the manufacturing process of the low moth sheet, but for example, in the low worm sheet of the embodiment (b) as shown in FIG. 2, the base layer A and the pattern layer 5 Or between the pattern layer 5 and the base material layer B. Further, in the case where the number of the low worm-inducing functional layers 3 as shown in FIG. 3 is two, the layers are provided between the low worm-inducing functional layers 31 and 32.

  Examples of the adhesive used for the adhesive layer 4 include polyester adhesives; ethylene-vinyl acetate copolymer resin (EVA) adhesives, vinyl chloride-vinyl acetate copolymer resin adhesives, vinyl acetate-acrylic copolymers. Vinyl acetate adhesives such as polymer adhesives; two-part curable urethane resins that use blocked isocyanate as a curing agent, aqueous urethane adhesives, aqueous vinyl urethane adhesives, modified urethane adhesives, urethane modified vinyl adhesives Examples thereof include urethane adhesives such as adhesives; adhesives such as styrene-butadiene latex adhesives, aqueous polymer isocyanate adhesives, and acrylic resin adhesives. Of these, polyester adhesives are preferred.

  Moreover, an adhesive agent can preferably contain said ultraviolet absorber from a viewpoint of the improvement of a low insecticidal property. The content of the ultraviolet absorber in the adhesive is preferably about 0.1 to 30% by mass. When the content of the ultraviolet absorber in the adhesive is within the above range, excellent low susceptibility can be obtained while obtaining excellent adhesive force.

<Anti-stain layer 6>
The anti-insect sheet of the present invention can preferably have an antifouling layer 6 on at least one side of its outermost surface for the purpose of preventing the adhesion of dirt due to use, or imparting so-called antifouling properties. The antifouling layer 6 is provided on the outer side of the lighting fixture when the low moth-absorbing sheet is applied to the lighting fixture.

The antifouling layer 6 is preferably obtained by crosslinking and curing an antifouling layer curable resin composition containing an ionizing radiation curable resin, and the ionizing radiation curable resin contained in the curable resin composition Preferably used are those used in the above-mentioned low worm-insulating functional layer.
Moreover, it is preferable that the curable resin composition for an antifouling layer contains the above-described ultraviolet absorber for the purpose of obtaining excellent low insecticidal properties and weather resistance. Content of the ultraviolet absorber in this composition is about 0.1-10 mass%, and 0.1-5 mass% is preferable. Moreover, the curable resin composition for an antifouling layer can contain various additives as required, and examples of the various additives preferably include those used in the above-described low worm-insulating functional layer.

  The antifouling layer curable resin composition forming the antifouling layer 6 may contain monofunctional or polyfunctional silicone (meth) acrylate for the purpose of further improving the antifouling property. Content of silicone (meth) acrylate is 1-5 mass parts with respect to 100 mass parts of ionizing radiation-curable resin from a viewpoint of maintaining transparency, More preferably, it is 1-2 mass parts.

  Moreover, the curable resin composition for an antifouling layer that forms the antifouling layer 6 can contain fine particles in order to express a deeper design. Various fine particles are used, and inorganic fine powders, organic fillers, and the like are used. Examples of the inorganic fine powder include silica, clay, heavy calcium carbonate, light calcium carbonate, precipitated barium sulfate, calcium silicate, synthetic silicate, and fine silicate powder. Organic fillers include acrylic, urethane, Examples include fillers made of nylon, polypropylene, urea resins, and the like.

The average particle size of the fine particles is about 1 to 10 μm, preferably 1 to 7 μm, from the viewpoint of improving antifouling properties and design properties. Here, the average particle diameter of the unevenness imparting fine particles is measured by a Coulter counter method or a laser diffraction method.
The content of the fine particles is preferably in the range of 5 to 60 parts by mass and more preferably in the range of 5 to 45 parts by mass with respect to 100 parts by mass of the ionizing radiation curable resin.

  1-10 micrometers is preferable and, as for the thickness of the pollution protection layer 6, 1-5 micrometers is more preferable. When the thickness is within the above range, the antifouling effect can be sufficiently obtained, and the moldability of the low worm-insulating sheet can be ensured.

<Colored solid layer 7>
The colored solid layer 7 is a layer that is provided as necessary in order to impart design properties to the low moth-absorbing sheet of the present invention, and is preferably provided in combination with the pattern layer 5 and the colored solid layer 7 from the viewpoint of design properties. .
The colored solid layer 7 is preferably colored and transparent from the viewpoint of ensuring a high total light transmittance while enhancing the design properties, and more preferably a light color system such as milky white or light yellow.
As the ink composition for forming the colored solid layer 7, the same ink composition as that for forming the pattern layer 5 can be used, and it is also the same that an ultraviolet absorber can be contained if necessary.

The sheet | seat of this invention is good also as a thing of the structure which has raw materials, such as Japanese paper and a fabric, in order to improve the design property, especially the purpose of improving the Japanese design property. The sheet of the present invention can be provided with a material such as Japanese paper or cloth alone for improving the Japanese-style design. Further, in order to express various design properties based on Japanese style, the material and the pattern layer 5 or the colored solid layer 7 can be combined.
The location where the material such as Japanese paper or fabric is provided is not particularly limited, but in consideration of antifouling property, it is provided inside the outermost surface, that is, inside the antifouling layer when the antifouling layer 6 is provided. It is preferable. Moreover, when providing the said raw material, what is necessary is just to use the adhesive agent etc. which are used for the above-mentioned contact bonding layer 4 as needed.

[Manufacturing method of a low insect repellent sheet]
<< Manufacturing Method of Low Insecticide Sheet of Aspect (a) >>
The low worm sheet of the aspect (a) is obtained by forming the pattern layer 5 on the base material layer A. The pattern layer 5 is formed by printing the above-described various patterns using an ink composition and a printing machine, and performing drying or the like as necessary. In general, it can be formed with ink by a known printing method such as gravure printing, offset printing, silk screen printing, transfer printing from a transfer sheet, and the like. The drying conditions are in the range of room temperature to about 55 ° C., and the drying time is about 10 to 120 seconds. In addition, room temperature is about 20 degreeC normally.

<< Method for Producing Low-Insect Sheet of Mode (b) >>
The low worming sheet of the aspect (b) is obtained by providing the substrate layer A with the pattern layer 5 or the substrate layer B, for example, by applying an adhesive to provide the predetermined layer. It is obtained by sticking the base material layer A and the base material layer B.

The adhesive can be formed by coating by a known method such as gravure printing, die coating, bar coating, spray coating, roll coating, reverse roll coating, comma coating, etc. From the above, gravure printing and comma coating are preferably employed. The coating amount of the adhesive is preferably 0.1 to ²⁰ g / m ² (based on solid content), and more preferably 1 to 10 g / m ² (based on solid content).

  For the sticking, a sticking device such as a cold press, hot press, roll press, laminator, wrapping, edge pasting machine, vacuum press or the like can be used. Of these, dry lamination using a laminator is preferably employed.

<< Method for Producing Low-Insect Sheet of Mode (c) >>
For example, after the pattern layer 5 is formed on the base material layer A in the same manner as in the method for producing the low insect attracting sheet of the aspect (a), the low worming sheet of the aspect (c) An ionizing radiation curable resin composition containing an ionizing radiation curable resin is applied to form the low worm-insulating functional layer 3, or the substrate layer A is formed with the low worm-insulating functional layer 31 and cross-linked as necessary. It is obtained by curing, then forming the pattern layer 5, performing drying or the like as necessary, and further forming the low susceptibility functional layer 32. Here, the pattern layer 5 may be formed in the same manner as described above.

In forming the low worm-insulating functional layer 3, first, the above-mentioned curing components such as a polymerizable monomer and a polymerizable oligomer, an ionizing radiation curable resin, an ultraviolet absorber, and various additives are uniformly mixed in a predetermined ratio. Then, an ionizing radiation curable resin composition is prepared. The viscosity of the ionizing radiation curable resin composition is not particularly limited as long as it is a viscosity capable of forming an uncured resin layer on the surface of the substrate by a coating method described later.
Then, the prepared ionizing radiation curable resin composition is applied onto the substrate A and / or the substrate B by a known method such as gravure printing, offset printing, silk screen printing, preferably gravure printing, A cured resin layer is formed.

  In the formation of the uncured resin layer, the ionizing radiation curable resin composition may be applied once or a plurality of times depending on the desired thickness of the low worm-insulating functional layer. When the ionizing radiation curable resin composition is applied multiple times, the ionizing radiation curable resin composition may be applied without curing the uncured resin layer, or the uncured resin layer may be cured. Then, a new ionizing radiation curable resin composition may be applied.

The uncured resin layer thus formed is irradiated with ionizing radiation such as electron beams and ultraviolet rays to cure the uncured resin layer, and then the solvent contained in the ionizing radiation curable resin composition is evaporated. In order to make it dry, the low worm-insulating functional layer 3 is obtained.
The thickness of the obtained low worm-insulating functional layer 3 may be appropriately set according to the amount of the ultraviolet absorber to be contained in the low worm-inducing functional layer, but is usually 1 to 60 μm, preferably 3 to 55 μm, more preferably It is 5-50 micrometers, More preferably, it is 10-40 micrometers. If the thickness of the low worm-insulating functional layer is within the above range, a sufficient ultraviolet absorber can be retained, and thus excellent low susceptibility can be obtained.

When an electron beam is used as the ionizing radiation when the uncured resin layer is cured, the acceleration voltage can be appropriately selected according to the resin used and the thickness of the layer. However, the acceleration voltage is usually about 70 to 300 kV. It is preferable to cure the cured resin layer.
In addition, in electron beam irradiation, the transmission capability increases as the acceleration voltage increases, so when using a base material that deteriorates due to the electron beam as the base material, the penetration depth of the electron beam and the thickness of the uncured resin layer By selecting an accelerating voltage so as to be substantially equal, it is possible to suppress the irradiation of the extra electron beam to the base material, and to minimize the deterioration of the base material due to the excess electron beam. it can.

The irradiation dose is preferably such that the crosslink density of the ionizing radiation curable resin in the low susceptibility functional layer is saturated, and is usually selected in the range of 5 to 300 kGy (0.5 to 30 Mrad), preferably 10 to 50 kGy (1 to 5 Mrad). Is done.
Further, the electron beam source is not particularly limited. For example, various electron beam accelerators such as a cockroft Walton type, a bandegraft type, a resonant transformer type, an insulated core transformer type, a linear type, a dynamitron type, and a high frequency type. Can be used.
When ultraviolet rays are used as the ionizing radiation, those containing ultraviolet rays having a wavelength of 190 to 380 nm are emitted. There is no restriction | limiting in particular as an ultraviolet-ray source, For example, a high pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, a carbon arc lamp, etc. are used.

  In addition, drying can be performed for the purpose of evaporating the solvent and the like contained in the ionizing radiation curable resin composition. The drying temperature condition is preferably in the range of room temperature to 55 ° C, more preferably room temperature to 50 ° C, and the drying time is preferably 10 to 120 seconds, more preferably 30 to 90 seconds. In addition, room temperature is about 20 degreeC normally.

<Formation of antifouling layer>
The formation of the antifouling layer varies depending on the mode of the low repellency sheet. For example, in the case of the mode (a), after providing the pattern layer 5 on the substrate layer A, the antifouling layer curable resin composition is applied. In the case of the mode (b), after the pattern layer 5 is provided on the substrate layer A, the surface of the substrate layer A opposite to the surface on which the pattern layer 5 is provided, or the substrate The antifouling layer curable resin composition may be applied to one side of the layer B and crosslinked and cured; in the case of the mode (c), for example, a low worm sheet having the mode of FIG. The anti-fouling layer curable resin composition may be applied and crosslinked and cured after the formation of the low worm-insulating functional layer 32. Here, the application of the curable resin composition for the antifouling layer and the method of cross-linking curing are the same as the formation of the low worm-insulating functional layer. In addition, the antifouling layer can be formed by crosslinking and curing the antifouling layer curable resin composition before the base material layer A and the base material layer B are pasted. Considering simplification of the process, it is preferable to carry out simultaneously with the formation of the low worm-insulating functional layer provided on the base material layer A by cross-linking hardening.

《Low insect repellent sheet》
The thus obtained low worm sheet of the present invention has excellent low worm resistance. More specifically, the low worm sheet of the present invention requires a total light transmittance at a wavelength of 405 nm of 10% or less, preferably 5% or less, more preferably 3% or less, and The total light transmittance at wavelengths of 555 nm and 945 nm is 30% or more. The low insect attracting sheet of the present invention can have excellent low attractant by setting the total light transmittance at a wavelength of 405 nm to 10% or less, and the total light transmittance at a wavelength of 555 nm and 945 nm, respectively. By setting it to 30% or more, sufficient brightness is secured when applied to a lighting fixture, and it is possible to cope with a remote control operation in which wavelengths in the infrared region are mainly used.
Moreover, the low worming sheet of the present invention has a high design property by providing a pattern layer by printing, can respond to diversifying tastes, and can be formed into various shapes by suppressing its thickness to about 350 μm. It becomes possible.

(Use)
The low worming sheet of the present invention can be used as a lighting fixture cover by taking advantage of such characteristics, and the lighting fixture cover can be suitably used for a lighting fixture. The lighting fixture includes, for example, a light source and a housing for storing the light source and the lighting fixture cover of the present invention, and irradiates light from the light source through the lighting fixture cover from the inside to the outside of the housing. The thing of the form to do is mentioned.

  Moreover, the low worming sheet of the present invention includes (i) adopting a Japanese paper pattern or a fabric pattern in the pattern layer, and (ii) a cut piece obtained by appropriately cutting a material such as Japanese paper or a cloth into the synthetic resin. Use a film or sheet as a base material, or (iii) Affix to a wooden frame (including a frame made of a material having a wood-like design) having a layer made of a material itself such as Japanese paper or fabric In particular, it can be suitably used as a Japanese-style lighting fixture cover. And this Japanese-style lighting fixture cover is used suitably for the above lighting fixtures, and can be used as a Japanese-style lighting fixture.

  Furthermore, the low worming sheet of the present invention is not limited to indoor use such as the above-mentioned lighting fixtures and Japanese-style lighting fixtures, but is installed outdoors, for example, it has a light source inside, and is internally illuminated by this internal light source. It is also suitably used as a signboard material used for a type signboard. In the case of applying the low insect attracting sheet of the present invention to such an application, the sign sheet material may be formed with the low insect attracting sheet itself, or the sign sheet may be bonded to another sign material and used.

  Other uses of the low moth-absorbing sheet of the present invention include window materials for houses, partition plates for entrances, and the like. Lighting in the house can prevent insects from gathering at the windows and doorways and entering indoors. Furthermore, the low worm-infestation sheet of the present invention can be used by being attached to a window glass of a commercial facility such as a convenience store or a supermarket. The low moth-absorbing sheet of the present invention can be used for various applications by using a release sheet and a release sheet as a tack sheet provided on at least one surface of the low worm-inducing sheet. At this time, as the release layer and release sheet, those usually used for tack sheets can be applied without limitation.

EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.
The low worm sheet obtained in each Example and Comparative Example was evaluated by the following method.
(1) Measurement of total light transmittance Using a spectral reflectometer ("PC-3100 (model number)" manufactured by Shimadzu Corporation), the total light transmittance at wavelengths of 405 nm, 555 nm, and 945 nm was measured. Evaluation based on the criteria.
Evaluation of total light transmittance at a wavelength of 405 nm ◎: Total light transmittance of 3% or less ○: Total light transmittance of more than 3% to 5% or less X: Total light transmittance of more than 5% to 10% or less 555 nm and 945 nm, respectively Evaluation of total light transmittance at wavelength ○: Total light transmittance of 30% or more ×: Total light transmittance of less than 30% (2) Adhesiveness of the low susceptibility sheet obtained in Examples 13 to 17 and Comparative Examples 3 and 4 A portion of the surface is rubbed with an eraser 10 times, and a cellophane tape (cellophane adhesive tape made by Nichiban Co., Ltd., “Cellotape (registered trademark)” 25 mm width) is strongly adhered to the part at room temperature, and a low worm sheet The cellophane tape was forcibly peeled in the direction of 90 degrees with the surface of the film. The state of the sheet when this was repeated three times was observed.
○ No problem △ There is some peeling, but there is no problem in practical use × Exfoliation is remarkable (3) Evaluation of curing shrinkage The touch of the low susceptibility sheet obtained in Examples 13 to 17 and Comparative Examples 3 and 4 The appearance was visually observed and evaluated according to the following criteria.
○: No problem Δ: Some vertical streaks occurred, but no problem in practical use ×: Longitudinal streaks are remarkable (4) Solvent resistance The low worm-infestation sheets obtained in Examples 13 to 17 and Comparative Examples 3 and 4 The surface was rubbed with methyl ethyl ketone 5 times (500 g load). After rubbing, the following criteria were evaluated by visual observation.
○: No change in appearance △: Some change in appearance was observed, but there was no practical problem ×: Whitening of the appearance was remarkable

Example 1
Example 1: Preparation of a low worm sheet A polyolefin resin sheet ("PP film" (trade name) made by Mitsubishi Plastics, Inc., made of a polypropylene resin and having a thickness of 150 [mu] m) as a base material layer A content: One sheet of 5 g / m ² ) was prepared. Gravure printing ink ("TMK (NT) CC White" (trade name): Showa Ink Industries Co., Ltd.) containing mainly titanium-based resin and containing white titanium as a color pigment on the base material layer A Then, the pattern layer is formed so that the coating amount after drying becomes ² g / m ² , and the electron beam curable resin (“KEB-CW” (product) Name): manufactured by Dainichi Seika Co., Ltd., and then irradiated with an electron beam under the conditions of 175 keV and 50 kGy (5 Mrad) to crosslink and harden the coating film to form the low worm-insulating functional layer 32 and antifouling layer 6. The low worm sheet of this invention was produced. Table 1 shows the evaluation results of the obtained low worm sheet.

Examples 2-5, Comparative Example 1
In Example 1, a sheet was produced in the same manner as in Example 1 except that the content of the ultraviolet absorber contained in the polyolefin resin sheet was as described in Table 1. The evaluation results of the obtained sheet are shown in Table 1.

Example 6
As the base material layer A and the base material layer B, a polyolefin resin sheet having a thickness of 150 μm made of polypropylene resin (“PP film” (trade name): manufactured by Mitsubishi Plastics, Inc., UV absorber content: 2.5 g / ^Two m ² ) were prepared. Gravure printing ink ("TMK (NT) CC White" (trade name): Showa Ink Industries Co., Ltd.) containing mainly titanium-based resin and containing white titanium as a color pigment on the base material layer A The pattern layer is formed so that the coating amount after drying is 2 g / m ² , and the electron beam curable mainly composed of electron beam curable acrylate resin is formed on the surface opposite to the surface provided with the pattern layer. After coating a resin (“KEB-CW” (trade name): manufactured by Dainichi Seika Co., Ltd.), an electron beam is irradiated under conditions of 175 keV and 50 kGy (5 Mrad) to crosslink and cure the coating film. A base material layer A having a pattern layer on the surface and an antifouling layer on the other surface was obtained.
On the other hand, another base material layer B was coated with 10 g / m ² by a roll coating method with a two-component curable polyester polyol type adhesive heated to 75 ° C. The material layer A was laminated to obtain the low worm sheet of the present invention. Table 1 shows the evaluation results of the obtained low worm sheet.

Examples 7-12, Comparative Example 2
In Example 6, a sheet was produced in the same manner as in Example 6 except that the content of the ultraviolet absorber contained in one polyolefin-based resin sheet was set to half the value described in Table 1. . The evaluation results of the obtained sheet are shown in Table 1.

Example 13
As the base material layer A, a polyolefin resin sheet (“PP film” (trade name): manufactured by Mitsubishi Plastics, Inc.) having a thickness of 150 μm made of polypropylene resin was prepared. On the base material layer A, a curable resin composition having the following composition is applied, and an electron beam is irradiated under the conditions of 175 keV and 50 kGy (5 Mrad) to crosslink and cure the coating, thereby forming the low susceptibility functional layer 31. Then, after drying by gravure printing ink ("TMK (NT) CC White" (trade name) manufactured by Showa Ink Industry Co., Ltd.) containing white titanium as a coloring pigment mainly composed of urethane resin. A pattern layer is formed so that the coating amount is 2 g / m ² , the ionizing radiation curable resin composition used for forming the following low worm-insulating functional layer 31 is applied, and further an electron beam curable acrylate resin is applied. After coating the main electron beam curable resin (“KEB-CW” (trade name): manufactured by Dainichi Seika Co., Ltd.), the electron beam is irradiated under the conditions of 175 keV and 50 kGy (5 Mrad) to form the coating film. Cross-linking and curing Forming a low insect attracting functional layer 32 and the antifouling layer 6, to prepare a low insect attracting sheet of the present invention. In the formation of the low worm-insulating functional layers 31 and 32, the ionizing radiation curable resin composition is applied such that the total coating amount of the ionizing radiation curable resin and the ultraviolet absorber is 25 g / m ^2. The total coating amount of the whole low worm-infestation sheet was set to 50 g / m ² .
Table 2 shows the evaluation results of the obtained low worm sheet.
Curable resin composition Composition UV absorber ^{* 1} : 5 parts by weight Trifunctional acrylate monomer: 45 parts by weight * 1,2-ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro- 2H-benzotriazol-2-yl) phenyl] propionate (“TINUVIN109” (trade name): manufactured by Ciba Specialty Chemicals Co., Ltd.

Examples 14-17, Comparative Examples 3 and 4
In Example 13, the curable resin composition was adjusted so that the total coating amount of the ionizing radiation curable resin and the ultraviolet absorber contained in the curable resin composition was the amount described in Table 2. A sheet was produced in the same manner as in Example 13 except that it was used. The evaluation results of the obtained sheet are shown in Table 2.

  ADVANTAGE OF THE INVENTION According to this invention, the low worming sheet which has the outstanding low worming property, a moldability, and designability can be obtained. The low insect-repellent sheet of the present invention is preferably used for lighting equipment, particularly Japanese-style lighting equipment.

1. Low Insect Sheet A. Base material layer A
B. Base material layer B
31. Low-insect functional layer 32. 3. Low worm-insulating functional layer 4. Adhesive layer Pattern layer 6. Antifouling layer Colored solid layer

Claims (11)

  A low worm sheet having a base material layer A and a pattern layer and containing an ultraviolet absorber in at least one of these layers, wherein the total light transmittance at a wavelength of 405 nm of the sheet is 10% or less A low worm sheet having a total light transmittance of 30% or more at wavelengths of 555 nm and 945 nm.   A substrate layer A, a pattern layer, and a substrate layer B are laminated in order, and is a hypo-insect sheet containing an ultraviolet absorber in at least one of these layers, the total light of the sheet at a wavelength of 405 nm A low worm sheet having a transmittance of 10% or less and a total light transmittance of 30% or more at wavelengths of 555 nm and 945 nm.   A low worming sheet having a base layer A, a pattern layer, and a low worming functional layer, and containing an ultraviolet absorber in at least the low worming functional layer, wherein the total light transmittance at a wavelength of 405 nm of the sheet is 10% A low worm sheet having a total light transmittance of 30% or more at wavelengths of 555 nm and 945 nm.   Furthermore, the low worm insect sheet | seat in any one of Claims 1-3 which has a pollution protection layer in the outermost surface.   The low worm-infestation sheet according to claim 4, wherein the antifouling layer contains an ultraviolet absorber.   The low arousal functional layer is formed by crosslinking and curing an ionizing radiation curable resin composition containing an ultraviolet absorber and an ionizing radiation curable resin, and the total amount of the ultraviolet absorber and the ionizing radiation curable resin resin The low moth-absorbing sheet according to any one of claims 2 to 5, wherein the content of the ultraviolet absorber in the is 1 to 55% by mass.   The low worm sheet according to claim 6, wherein the ionizing radiation curable resin is an electron beam curable resin.   The low worm sheet according to any one of claims 1 to 7, wherein the ultraviolet absorber is a benzotriazole-based ultraviolet absorber.   9. The benzotriazole ultraviolet absorber is 2-ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro-2H-benzotriazol-2-yl) phenyl] propionate. The low insect-repellent sheet as described. The low worm sheet according to any one of claims 1 to 9, further comprising at least one of the following characteristics (i) to (iii): in a wooden frame (including a case where a material having a wood-like design is used): A Japanese-style lighting fixture cover that is attached or fitted.
(I) The base material layer A or the base material layer B contains a piece of Japanese paper or fabric (ii) The pattern layer is a Japanese paper pattern or a fabric pattern (iii) and further has a layer made of Japanese paper or a fabric.   A Japanese-style lighting fixture using the Japanese-style lighting fixture cover according to claim 10.

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