Anti-insect board

Abstract

To provide an anti-insect board for improving an issue that existing anti-insect boards have insufficient anti-mosquito effect.SOLUTION: The anti-insect board includes a base material, a UV absorber masterbatch, and a colorant masterbatch. The UV absorber masterbatch is dispersed in the base material, and configured to absorb a light beam having a wavelength within a range from 300 nm to 400 nm. The colorant masterbatch is also dispersed in the base material and configured to absorb a light beam having a wavelength within a range from 400 nm to 500 nm. A light transmittance of the anti-insect board to a light beam having a wavelength within a range from 300 nm to 500 nm is less than 1%, and a light transmittance of the anti-insect board to a light beam having a wavelength within a range from 600 nm to 750 nm is greater than 85%.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an insect-proof board, and particularly to an insect-proof board in which mosquitoes and insects are unlikely to gather and which does not harm the human body.

Background Art

[0002] Existing insect-proof devices can be roughly divided into two types. One is the method of killing mosquitoes using mosquito-repellent incense or insecticides, but these may harm the human body. The other is the method of using electronic devices (for example, mosquito-catching lamps or mosquito-catching rackets), but the mosquito-catching racket cannot effectively kill mosquitoes over a long period of time, and when using a mosquito-catching lamp, mosquitoes may gather. From these, it can be seen that there is a problem that the current insect-proof devices have insufficient mosquito-repellent effects.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The technical problem to be solved by the present invention is to provide an insect-proof board that makes up for the deficiencies of the current technology and improves the problem of insufficient mosquito-repellent effect.

Means for Solving the Problems

[0004] In order to solve the above technical problem, one of the technical solutions adopted in the present invention is to provide an insect-proof board as follows. The insect-proof board includes a base material, an ultraviolet absorber masterbatch dispersed in the base material and having the ability to absorb light with a wavelength of 300 nm to 400 nm, and a color masterbatch dispersed in the base material and having the ability to absorb light with a wavelength of 400 nm to 500 nm. The insect-proof board has a light transmittance of less than 1% for light with a wavelength of 300 nm to 500 nm, and a light transmittance of more than 85% for light with a wavelength of 600 nm to 750 nm.

[0005] Preferably, the base material is at least one selected from the group of materials consisting of polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polystyrene (PS), polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC).

[0006] Preferably, the polyethylene terephthalate (PET) resin has an intrinsic viscosity in the range of 0.63 dl / g to 1.1 dl / g and is one or a mixture of two selected from the group of materials consisting of Tairilin 3824, Tairilin 3842, Tairilin 390A, Tairilin P115, Tairilin 380R, Tairilin 663G, and SKYGREEN S2008.

[0007] Preferably, the insect-proof board has a light transmittance for light with a wavelength in the range of 500 nm to 600 nm within a range from a first value of less than 1% to a second value of more than 85%.

[0008] Preferably, the color indicated by the color masterbatch reflects light with a predetermined wavelength and reflects light with a wavelength shorter or longer than the predetermined wavelength. Here, the predetermined wavelength is in the range of 570 nm to 750 nm.

[0009] Preferably, the color indicated by the color masterbatch is at least one of yellow, orange, and red.

[0010] Preferably, the ultraviolet absorber masterbatch is at least one of a benzotriazole-based ultraviolet absorber masterbatch, a diphenyl ketone-based ultraviolet absorber masterbatch, and a triazine-based ultraviolet absorber masterbatch.

[0011] Preferably, the thickness of the insect-proof board and the content of the color masterbatch are in an inverse proportional relationship.

[0012] Preferably, the product of the thickness (mm) of the insect-proof board and the content (wt%) of the color masterbatch is from 1 to 8.

[0013] Preferably, based on 100 wt% of the total weight of the insect-proof board, the content of the ultraviolet absorber masterbatch is in the range of 0.01 wt% to 2 wt%, and the content of the color masterbatch is in the range of 0.01 wt% to 12 wt%.

[0014] Preferably, the thickness of the insect-proof board is in the range of 0.2 μm to 8 μm.

[0015] Preferably, the rate at which the content of the color masterbatch decreases as the thickness of the insect-proof board increases is in the range of 0.3 wt% / mm to 2 wt% / mm.

[0016] One beneficial effect of the present invention is that the insect-proof board provided by the present invention improves the problem of insufficient insect-proof effect of the current insect-proof device by means of the technical measures that "the ultraviolet absorber masterbatch absorbs light with a wavelength of 300 nm to 400 nm" and "the color masterbatch absorbs light with a wavelength of 400 nm to 500 nm".

[0017] To better understand the features and technical content of the invention, the following provides a detailed description of the present invention with reference to the accompanying drawings. However, the provided accompanying drawings are only for reference and explanation purposes and are not intended to limit the scope of the claims of the present invention.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0019] The following describes the embodiment of the "insect-proof board" disclosed by the present invention. A person skilled in the art can understand the merits and effects of the present invention based on the disclosure of this specification. The present invention can be implemented or applied by other different embodiments. Each detail in this specification can also be equally modified and changed based on various viewpoints or applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are for simple and schematic illustration and do not show actual dimensions. In the following embodiments, the technical matters related to the present invention will be further described, but the disclosed content does not limit the present invention. Also, the term "or" used in this specification may include any one or a combination of multiple related items depending on the actual situation.

[0020] Throughout this specification, terms such as "first", "second", "third", etc. may be used to describe various components and signals, but it should be understood that these components and signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component or one signal from another signal. Furthermore, the term "or" used in this specification can appropriately include any one or a combination of the related listed items.

[0021] Referring to FIGS. 1 and 2, FIG. 1 is a schematic side view of the insect-proof board according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing the light transmittance of the insect-proof board according to an embodiment of the present invention and a general PET transparent plate with respect to light of different wavelengths. An insect-proof board 100 according to an embodiment of the present invention is provided. The insect-proof board 100 is used, for example, as a partition board (such as a partition board in a restaurant), a protective cover of a device, a case of a machine, or a lampshade, etc., but the present invention is not limited thereto. The insect-proof board 100 includes a base material, an ultraviolet absorber masterbatch, and a color masterbatch.

[0022] The base material is at least one selected from the material group consisting of polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polystyrene (PS), polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC), but the present invention is not limited thereto.

[0023] Preferably, the base material is a polyethylene terephthalate (PET) resin, and is one kind or a mixture of two kinds in the material group consisting of Tairilin 3824, Tairilin 3842, Tairilin 390A, Tairilin P115, Tairilin 663G, Tairilin 380R, and SKYGREEN S2008. Also, the intrinsic viscosity is in the range of 0.63 dl / g to 1.1 dl / g. As a result, the PET resin has excellent chemical properties, weather resistance, and recyclability.

[0024] The ultraviolet absorber masterbatch is dispersed in the base material and absorbs light with a wavelength of 300 nm to 400 nm. The ultraviolet absorber masterbatch is at least one of a benzotriazole-based ultraviolet absorber masterbatch, a diphenyl ketone-based ultraviolet absorber masterbatch, and a triazine-based ultraviolet absorber masterbatch. For example, the benzotriazole-based ultraviolet absorber masterbatch is at least one selected from the material group consisting of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole (UV-P), 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole (UV-326), 2-(2'-hydroxy-3',5'-di-tert-pentylphenyl)benzotriazole (UV-22), or 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole (UV-327), and methylene bis[6-benzotriazole-4-tert-octylphenol] (UV-41). The diphenyl ketone-based ultraviolet absorber masterbatch is, for example, at least one selected from the group of materials consisting of 2,2'-dihydroxydiphenylmethane, 2,2',4,4'-tetrahydroxydiphenylmethane, 2,2'-dihydroxy-4,4'-dimethoxydiphenylmethane, 2,2'-dihydroxy-4,4'-diethoxydiphenylmethane, 2,2'-dihydroxy-4,4'-dipropyloxydiphenylmethane, 2,2'-dihydroxy-4,4'-dibutyloxydiphenylmethane, 2,2'-dihydroxy-4-methoxy-4'-ethoxydiphenylmethane, 2,2'-dihydroxy-4-methoxy-4'-propyloxydiphenylmethane, 2,2'-dihydroxy-4-methoxy-4'-butyloxydiphenylmethane, and 2,2'-dihydroxy-4-ethoxy-4'-propyloxydiphenylmethane. The triazine-based ultraviolet absorber masterbatch is, for example, at least one selected from the group of materials consisting of 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxyphenol, 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-octyloxyphenol, 4-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-1,3-benzenediol, and derivatives of 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxyphenols.

[0025] The ultraviolet absorber masterbatch can contain a carrier and an ultraviolet absorber. The weight percentage of each component is as follows: the carrier is 80% of extrusion-grade PET, and the ultraviolet absorber is 20%. The above raw materials are mixed and melt-blended using a twin-screw extruder. The melt temperature is controlled at 255 - 270 °C, the screw rotation speed is set at 100 - 300 rpm, and the additive is uniformly dispersed in the carrier resin by the shear and mixing of the screw. Then, it is pelletized and dried to produce the ultraviolet absorber masterbatch of the present invention.

[0026] The point to note is that the present invention does not impose any restrictions on the specific components of the ultraviolet absorber masterbatch as long as the ultraviolet absorber masterbatch absorbs light in the wavelength range of 300 nm to 400 nm.

[0027] The color masterbatch is dispersed in the base material. The color masterbatch is composed of, for example, a carrier, a dispersant, an anti-fixing agent, a lubricant, and a coloring powder. The carrier is an extrusion-grade PET, the dispersant is a polyethylene wax, the anti-fixing agent is nano-level silicon dioxide, the lubricant is one or a mixture of two kinds of pentaerythritol tetrastearate, and the coloring powder is one or a mixture of several kinds of anthraquinone dyes, azo dyes, or naphtharone dyes for polyester fibers. The weight percentage of each component is, for example, as follows: carrier 60%, dispersant 5%, anti-fixing agent 5%, lubricant 20%, coloring powder 10%, but the present invention is not limited thereto. The above raw materials are mixed and melt-blended with a twin-screw extruder. The melting temperature is controlled at 255 - 270 °C, the screw rotation speed is set at 100 - 300 rpm, and the additives are uniformly dispersed in the carrier resin by the shearing and mixing of the screw. Then, granulation and drying are carried out to produce various colored PET masterbatches of the present invention.

[0028] Also, the color masterbatch mainly absorbs light in the wavelength range of 400 nm to 500 nm. The visible light wavelength range of mosquitoes is about 300 nm to 500 nm. The insect-proof board of the present invention combines the ultraviolet absorber masterbatch that absorbs light in the wavelength range of 300 nm to 400 nm and the color masterbatch that absorbs light in the wavelength range of 400 nm to 500 nm. Thereby, the insect-proof board 100 of the present invention is opaque to mosquitoes, preventing mosquitoes from gathering near the insect-proof board and achieving the mosquito-proof effect.

[0029] Furthermore, the visible light wavelength range of humans is about 380 nm to 750 nm. The insect-proof board 100 of the present invention absorbs light in the wavelength range of 300 nm to 500 nm, but visible light of 500 nm or more passes through the insect-proof board 100, so humans can see through the insect-proof board 100.

[0030] For example, when the insect-proof board 100 is used as a partition wall, a protective cover of a device, a case of a machine, or a lampshade, mosquitoes cannot see through the insect-proof board 100, so they cannot see the light source behind the insect-proof board 100. As a result, mosquitoes do not gather near the light source. On the other hand, the insect-proof board 100 is transparent to humans, and humans can see the light source behind the insect-proof board 100 and can convey visual information.

[0031] Specifically, the color indicated by the color masterbatch reflects light of a predetermined wavelength, and the reflected wavelength is shorter or longer than the predetermined wavelength. The predetermined wavelength is between 570 nm and 750 nm. The predetermined wavelength may be between 570 nm and 590 nm, between 590 nm and 630 nm, or between 630 nm and 750 nm. Or the predetermined wavelength may be between 570 nm and 630 nm, or between 590 nm and 750 nm. More specifically, the color indicated by the color masterbatch is at least one of yellow, orange, or red. The color indicated by the color masterbatch may also be a color between yellow and red.

[0032] It should be noted that if the wavelength of the light reflected by the color masterbatch is too low, the reflected light may be visible to mosquitoes, and as a result, the insect-proof board 100 may lose its mosquito-proof effect.

[0033] When the total weight of the insect-proof board 100 is 100 wt%, the content of the ultraviolet absorber masterbatch is preferably between 0.01 wt% and 2 wt%, and the light transmittance at 300 - 400 nm can be maintained below 0.2%. Increasing the amount of the ultraviolet absorber masterbatch excessively will not reduce the transmittance or enhance the mosquito-proof effect, but only increase the cost. The usage amount of the color masterbatch is between 0.01 wt% and 12 wt%, and the content of the base material is between 88 wt% and 99.8 wt%.

[0034] In this embodiment, the thickness T of the insect-proof board 100 is between 0.2 μm and 8 μm, but the present invention is not limited thereto. It should be noted that the smaller the thickness T of the insect-proof board 100, the easier it is for light to pass through the insect-proof board 100, so it is necessary to correspondingly increase the content of the color masterbatch. Conversely, the larger the thickness T of the insect-proof board 100, the more difficult it is for light to pass through the insect-proof board 100, so the content of the color masterbatch can be correspondingly reduced. Based on this, the thickness T (mm) of the insect-proof board 100 and the content of the color masterbatch are in an inverse proportional relationship, and the product of the thickness T (mm) and the usage amount of the color masterbatch (wt%) is such that the optimal usage amount is from 1 to 8. When the product of the thickness T (mm) and the usage amount of the color masterbatch (wt%) is less than 1, the light transmittance at 500 nm or less becomes 1% or more, and the mosquito-proof effect becomes insufficient. When the product of the thickness T (mm) and the usage amount of the color masterbatch (wt%) exceeds 8, the light transmittance at 600 nm or more becomes less than 85%, and the perspective effect becomes insufficient, but the present invention is not limited thereto.

[0035] For example, when the thickness T of the insect-proof board 100 is 8 μm, the content of the color masterbatch is 0.3 wt%, and when the thickness T of the insect-proof board 100 is 0.2 μm, the content of the color masterbatch is 12 wt%.

[0036] As shown in FIG. 2, a general PET transparent plate can transmit light with a wavelength of about 320 nm or more. Therefore, when a general PET transparent plate is used as a lamp shade, mosquitoes tend to be attracted to the light and are attracted to the light source through the PET transparent plate. In contrast, the insect-proof board 100 of this embodiment has a light transmittance of less than 1% for light with a wavelength of 300 nm to 500 nm and a light transmittance of more than 85% for light with a wavelength of 600 nm to 750 nm.

[0037] The light transmittances of the insect-proof board in the embodiment of the present invention and a general PET transparent plate for light with different wavelengths are as follows.

[0038]

Table 1-1

Table 1-2

[0039] Furthermore, the insect-proof board 100 has a light transmittance for light with a wavelength of 500 nm to 600 nm between a first numerical value of less than 1% and a second numerical value of more than 85%. In other words, the insect-proof board 100 has a light transmittance for light with a wavelength of 500 nm of the first numerical value (about 0.16% as shown in FIG. 2), and a light transmittance for light with a wavelength of 600 nm of the second numerical value (about 88.7% as shown in FIG. 2). By gradually increasing the wavelength of the light from 500 nm to 600 nm, it can be seen that the light transmittance of the insect-proof board 100 for the corresponding light gradually increases from the first numerical value to the second numerical value. Furthermore, it is worth noting that the thickness T of the insect-proof board 100 shown in FIG. 2 is 1 μm and it contains 2 wt% of an orange color masterbatch and 0.25 wt% of an ultraviolet absorber masterbatch.

[0040] The present invention also discloses an insect-proof board and a method for manufacturing the same. For the method of manufacturing the insect-proof board, the insect-proof board 100 can be manufactured by co-extrusion using a single extruder or a plurality of extruders (two or three). Furthermore, the insect-proof board 100 is not limited to a single-layer structure, and in other embodiments, an insect-proof board 100 with a two-layer structure or a three-layer structure can also be formed by extrusion.

[0041] [Experimental Data Test] Hereinafter, based on Examples 1 to 10 and Comparative Examples 1 to 2, the content of the present invention will be described in detail. However, these examples are for understanding the present invention, and the scope of the present invention is not limited to these examples.

Examples

[0042] Example 1: A single-layer insect-proof board. The base material is a polyester resin, type number Tairilin 3842 with an intrinsic viscosity of 0.84 dl / g, used in an amount of 88 wt%, 11 wt% of orange color masterbatch, and 1 wt% of ultraviolet absorber masterbatch are added, mixed and stirred uniformly, then dehumidifying drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is an orange insect-proof board with a thickness of 0.2 mm.

[0043] Example 2: A single-layer insect-proof board. The base material is a polyester resin, type number Tairilin 3842 with an intrinsic viscosity of 0.84 dl / g, used in an amount of 97.75 wt%, 2 wt% of orange color masterbatch, and 0.25 wt% of ultraviolet absorber masterbatch are added, mixed and stirred uniformly, then dehumidifying drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is an orange insect-proof board with a thickness of 2 mm.

[0044] Example 3: A single-layer insect-proof board. The base material is a polyester resin, type number Tairilin 3824 with an intrinsic viscosity of 0.84 dl / g, used in an amount of 98.5 wt%, 0.5 wt% of orange color masterbatch, and 1 wt% of ultraviolet absorber masterbatch are added, mixed and stirred uniformly, then dehumidifying drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is an orange insect-proof board with a thickness of 6 mm.

[0045] Example 4: An insect-proof board with a two-layer co-extrusion (B / A structure). The base material of the first layer (extruder A) is a polyester resin, type number Tairilin 3824 with an intrinsic viscosity of 0.84 dl / g, a usage amount of 98 wt%, 2 wt% of orange color masterbatch was added, mixed and uniformly stirred, and then dehumidifying drying was carried out at 140 °C for 6 hours. The base material of the second layer (extruder B) is a polyester resin, type number Tairilin 3842 with an intrinsic viscosity of 0.84 dl / g, a usage amount of 99.75 wt%, 0.25 wt% of ultraviolet absorber masterbatch was added, mixed and uniformly stirred, and then dehumidifying drying was carried out at 140 °C for 6 hours. The resins of the first layer and the second layer were co-extruded with two extruders to produce a PET insect-proof board with a two-layer structure (B / A structure, thickness ratio 40 / 60). It was an orange insect-proof board with a total thickness of 6 mm.

[0046] Example 5: An insect-proof board with a three-layer co-extrusion (B / A / B structure). The base material of the first layer (extruder A) is a polyester resin, type number Tairilin 3824 with an intrinsic viscosity of 0.82 dl / g, a usage amount of 99 wt%, 1 wt% of orange color masterbatch was added, mixed and uniformly stirred, and then dehumidifying drying was carried out at 140 °C for 6 hours. The base material of the second layer (extruder B) is a polyester resin, type number Tairilin 3842 with an intrinsic viscosity of 0.84 dl / g, a usage amount of 99.7 wt%, 0.3 wt% of ultraviolet absorber masterbatch was added, mixed and uniformly stirred, and then dehumidifying drying was carried out at 140 °C for 6 hours. The resins of the first layer and the second layer were co-extruded with two extruders, and a PET insect-proof board with a three-layer structure (B / A / B structure, thickness ratio 20 / 60 / 20) was produced with the diverter of the extruder. It was an orange insect-proof board with a total thickness of 5 mm.

[0047] Example 6: An insect-proof board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842 with an intrinsic viscosity of 0.84 dl / g, a usage amount of 94 wt%, 5 wt% of yellow color masterbatch and 1 wt% of ultraviolet absorber masterbatch were added, mixed and uniformly stirred, then dehumidifying drying was carried out at 140 °C for 6 hours, and extrusion processing was carried out with an extruder. The finished product was a yellow insect-proof board with a thickness of 0.5 mm.

[0048] Example 7: An insect-proof board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842, with an intrinsic viscosity of 0.84 dl / g, a usage amount of 97.5 wt%, 2 wt% of a yellow color masterbatch, and 0.5 wt% of an ultraviolet absorber masterbatch are added, mixed and uniformly stirred, then dehumidifying and drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is a yellow insect-proof board with a thickness of 2 mm.

[0049] Example 8: An insect-proof board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842, with an intrinsic viscosity of 0.84 dl / g, a usage amount of 98.88 wt%, 0.67 wt% of a yellow color masterbatch, and 0.45 wt% of an ultraviolet absorber masterbatch are added, mixed and uniformly stirred, then dehumidifying and drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is a yellow insect-proof board with a thickness of 6 mm.

[0050] Example 9: An insect-proof board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842, with an intrinsic viscosity of 0.84 dl / g, a usage amount of 97.75 wt%, 2 wt% of a red color masterbatch, and 0.25 wt% of an ultraviolet absorber masterbatch are added, mixed and uniformly stirred, then dehumidifying and drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is a red insect-proof board with a thickness of 2 mm.

[0051] Example 10: An insect-proof board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842, with an intrinsic viscosity of 0.84 dl / g, a usage amount of 99.08 wt%, 0.67 wt% of a red color masterbatch, and 0.25 wt% of an ultraviolet absorber masterbatch are added, mixed and uniformly stirred, then dehumidifying and drying is carried out at 140 °C for 6 hours, and extrusion processing is carried out by an extruder. The finished product is a red insect-proof board with a thickness of 5 mm.

[0052] Comparative Example 1: A polyester board with a single-layer structure. The base material is a polyester resin, type number Tairilin 3842, with an intrinsic viscosity of 0.84 dl / g and a usage amount of 100 wt%. After dehumidifying and drying at 140 °C for 6 hours, extrusion processing is carried out by an extruder. The finished product is a transparent PET board with a thickness of 2 mm.

[0053] Comparative Example 2: A single-layer insect-proof board, where the base material is a polyester resin, with a type number of Tairilin 3842, an intrinsic viscosity of 0.84 dl / g, a usage amount of 91.75 wt%, 8 wt% of a red color masterbatch, and 0.25 wt% of an ultraviolet absorber masterbatch were added. After mixing and uniformly stirring, dehumidifying drying was carried out at 140°C for 6 hours, and extrusion processing was performed using an extruder. The finished product was a 3-mm-thick red insect-proof board.

[0054] The component ratios and light transmittance of 100 insect-proof boards of Examples 1 to 10 and Comparative Examples 1 and 2 are shown in Tables 2 and 3 below, and the explanations of the related test methods were as follows.

[0055] Light transmittance test: Measured according to the JIS K7705 method.

[0056] Mosquito defense test: At a semi-shaded outdoor location, two insect-catching lights (type number WELL WE-112 sticky paper type insect-catching lights) were installed each time. The two insect-catching lights were 3 meters apart, and an opaque black plastic board was placed in between to avoid interference of the light sources. An insect-proof board of the example (experimental group) was added outside the lamp tube of one insect-catching light, and a transparent PET board of Comparative Example 1 (control group) was added to the other. The experimental period was 2 days, including day and night. The number of insects (five categories such as Lepidoptera, Diptera, Hemiptera, Hymenoptera, Coleoptera, etc.) stuck to the sticky paper was counted. The fewer the number of insects stuck to the sticky paper, the higher the evaluation of the effect of the insect-proof board.

[0057] [Table 2]

[0058] [Table 3]

[0059] [Discussion of Test Results] In Examples 1-5, products were manufactured by adding an ultraviolet absorber masterbatch and an orange color masterbatch to the insect-proof board, and the light transmittance at each wavelength was measured. As a result, the light transmittance at 300-500 nm was all less than 0.1%, and the light transmittance at 650 nm was all more than 85%, meeting the physical property requirements of the insect-proof board. Examples 1-3 had a single-layer structure extruded by a single extruder, Example 4 had a two-layer structure co-extruded by two extruders, and Example 5 had a three-layer structure co-extruded by two extruders.

[0060] Comparative Example 1 was a transparent polyester board with a single-layer structure, using 100% polyester resin as the base material, and the light transmittance at each wavelength was measured. As a result, the light transmittance at 300-450 nm was 0.1-87.5%, the light transmittance at 550 nm was 89.2%, and the light transmittance at 650 nm was 89.9%. It clearly did not meet the requirements of the insect-proof board that requires the light transmittance of light rays from wavelength 300 nm to 500 nm to be less than 1%, so it had no effect as an insect-proof board.

[0061] Insect-proof test in a semi-shaded outdoor location: Two WELL WE-112 sticky paper type insect-catching lights were installed. The two insect-catching lights were 3 meters apart and separated by an opaque black plastic board to avoid interference of light sources. An insect-proof board of each of Examples 1-10 was added to one insect-catching light (experimental group), and a transparent PET board of Comparative Example 1 was added to the other insect-catching light (control group). Each experiment was conducted for 2 days, including day and night, and the number of insects (Lepidoptera, Diptera, Hemiptera, Hymenoptera, Coleoptera, etc.) attached to the sticky paper was calculated. The fewer the number of insects attached to the sticky paper, the higher the effect of the insect-proof board. The number of insects attached to the sticky paper in Examples 1-5 was small, and it was clearly superior to Comparative Example 1.

[0062] In Examples 6-8, products were manufactured by adding an ultraviolet absorber masterbatch and a yellow color masterbatch to the insect-proof board, and the light transmittance at each wavelength was measured. As a result, the light transmittance at 300-500 nm was all less than 0.1%, and the light transmittance at 650 nm was all more than 85%, meeting the physical property requirements of the insect-proof board.

[0063] In Examples 9-10, products were manufactured by adding an ultraviolet absorber masterbatch and a red color masterbatch to the insect-proof board, and the light transmittance at each wavelength was measured. As a result, the light transmittance at 300-500 nm was all less than 0.1%, and the light transmittance at 650 nm was all more than 85%, meeting the physical property requirements of the insect-proof board.

[0064] Comparative Example 2 is a product with a single-layer structure of a transparent polyester plate, to which an ultraviolet absorber masterbatch and a red color masterbatch are added to the insect-proof board. In the formulation, the red color masterbatch is excessive at 8%, and the light transmittance at 300-500 nm is less than 0.1%, meeting the physical property requirements of the insect-proof board. However, the light transmittance at 650 nm is 65.2% (not meeting the standard of more than 85%), with low transparency and not meeting the usage requirements of a partition board with a transparent window.

[0065] [Beneficial Effects According to Embodiments of the Present Invention] One beneficial effect of the present invention is that the provided insect-proof board improves the problem of insufficient insect-proof effect of existing insect-proof devices through the technical solutions that "the ultraviolet absorber masterbatch absorbs light from 300 nm to 400 nm" and "the color masterbatch absorbs light from 400 nm to 500 nm".

[0066] The content disclosed above is only a preferred embodiment of the present invention and does not limit the scope of the patent claims of the present invention. Therefore, all equivalent technical deformations made based on the content of the specification and the attached drawings of the present invention shall be included in the scope of the patent claims of the present invention.

Explanation of Reference Numerals

[0067] 100 Insect-proof board T Thickness

Claims

1. A base material, An ultraviolet absorber masterbatch dispersed in the base material and absorbing light rays with wavelengths from 300 nm to 400 nm, A color masterbatch dispersed in the base material and absorbing light rays with wavelengths from 400 nm to 500 nm, A pest-proof board comprising: The pest-proof board has a light transmittance of less than 1% for light rays with wavelengths from 300 nm to 500 nm and a light transmittance of more than 85% for light rays with wavelengths from 600 nm to 750 nm. A pest-proof board, characterized in that.

2. The base material is composed of at least one material selected from the group of materials consisting of polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polystyrene (PS), polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC). The pest-proof board according to Claim 1.

3. The polyethylene terephthalate (PET) resin has an intrinsic viscosity in the range of 0.63 dl / g to 1.1 dl / g and is one kind or a mixture of two kinds selected from the group of materials consisting of Tairilin 3824, Tairilin 3842, Tairilin 390A, Tairilin P115, Tairilin 663G, Tairilin 380R, and SKYGREEN S2008. The pest-proof board according to Claim 1.

4. The light transmittance of the pest-proof board for light rays with wavelengths from 500 nm to 600 nm is between a first numerical value of less than 1% and a second numerical value of more than 85%. The pest-proof board according to Claim 1.

5. The color shown by the color masterbatch reflects light rays with a predetermined wavelength and reflects light rays with wavelengths smaller or larger than the predetermined wavelength. The predetermined wavelength is between 570 nm and 750 nm. The pest-proof board according to Claim 1.

6. The color shown by the color masterbatch is at least one of yellow, orange, and red. The pest-proof board according to Claim 1.

7. The ultraviolet absorber masterbatch is at least one of a benzotriazole-based ultraviolet absorber masterbatch, a diphenyl ketone-based ultraviolet absorber masterbatch, and a triazine-based ultraviolet absorber masterbatch. The pest-proof board according to Claim 1.

8. The insect-proof board according to claim 1, wherein the thickness of the insect-proof board and the content of the color masterbatch are in an inverse proportional relationship.

9. The insect-proof board according to claim 8, wherein the product of the thickness of the insect-proof board and the content of the color masterbatch is from 1 to 8.

10. The insect-proof board according to claim 1, wherein based on 100 wt% of the total weight of the insect-proof board, the content of the ultraviolet absorber masterbatch is from 0.01 wt% to 2 wt%, and the content of the color masterbatch is from 0.01 wt% to 12 wt%.

11. The insect-proof board according to claim 1, wherein the thickness of the insect-proof board is from 0.2 μm to 8 μm.

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