Reflective film causing visual disturbance to birds, manufacturing method therefor and light-shielding device

Abstract

The present invention relates to a reflective film for causing visual disturbance to birds, comprising: at least one reflective layer which comprises a material having a metal component and / or a material having a non-metal component; at least one color layer which is configured to reflect monochromatic light or polychromatic light; and at least one adhesive layer which connects the reflective layer and the color layer. The reflective film is characterized by being capable of reflecting light having a wavelength between 280 nm and 2500 nm, thereby causing visual disturbance to birds. The present invention further relates to a light-shielding device comprising the reflective film causing visual disturbance to birds, and a manufacturing method for the reflective film causing visual disturbance to birds.

Description

[0001] The invention relates to the technical field of a reflective film for bird deterring, a preparation method thereof and a light shielding device. Specifically, the invention relates to a reflective film for bird deterring and a preparation method thereof, and a light shielding device. Particularly, the invention relates to a reflective film for bird deterring, specifically for reflecting electromagnetic waves. BACKGROUND Bird strikes, i.e. birds colliding with glass windows or glass curtain walls during flight and being injured or even dying, are one of the most severe survival threats that wild birds are facing today. It is estimated that in Canada, the number of bird individuals dying due to bird strikes is as high as 1600 to 4200 million per year. In the United States, this number can reach a staggering 3.65 to 9.88 billion. During the day, there are usually two common reasons for bird strikes: one is that birds see the environment such as habitat or sky reflected on the glass and mistakenly think that the place on the glass can be reached, and then fly towards the glass; the other is that birds see plants or space on the other side through the transparent glass and mistakenly think that they can pass through the glass to the other side. In addition, this is also related to the sensory characteristics of birds. Unlike humans, birds have stronger lateral vision than frontal vision. During flight, birds often need to turn their heads or look back to avoid predators and find prey, and the resolution of vision in the forward direction is low, which makes it difficult for them to effectively discover obstacles in front. In the prior art, a matrix of 5x5 cm spaced dots with a diameter of 1 cm, or 10 cm spaced vertical lines, can effectively prevent bird strikes. These patterns are preferably installed on the outside of the glass, so as to avoid bird strikes caused by reflection and transmission of the glass at the same time. However, such a technical solution will bring great inconvenience. For example, installing stickers on the glass curtain wall of existing high-rise buildings will result in a huge investment of manpower and time, and subsequent maintenance and replacement will also require investment costs. In addition, bird strike prevention films or coatings applied to glass are also known, for example, patent document WO2023 / 212389 discloses a formulation including a binder, a carrier, and a visible / ultraviolet light absorbing component, which is applied to glass to produce a pattern visible to birds but invisible to the human eye. For another example, patent document US2015 / 0160385 discloses a bird strike prevention film including a polymer layer and a textured layer with added optical brightener. The bird strike prevention devices in the prior art are installed on the light receiving surface or the back surface of the glass, reflect the incident light, especially specular reflection, and cannot or only can have less diffuse reflection, which will greatly reduce the bird strike prevention effect.Moreover, it is quite troublesome to install or remove the bird strike prevention film, which leads to an increase in the cost of bird strike prevention retrofitting of buildings on the one hand, and the film applied on the surface of the window glass cannot be recycled on the other hand, resulting in waste of resources. For the bird strike prevention film installed outdoors, the service life is shortened due to the interference of outdoor weather and climate. Furthermore, the bird strike prevention film in the prior art needs to form a pattern or a line on the glass that is sufficient for birds to distinguish, which may damage the appearance of the building itself. There is no technical solution in the prior art that can solve the above problems. In order to solve the above problems in the prior art, according to a first aspect of the present application, embodiments of the present application provide a reflective film that distracts birds, comprising: at least one reflective layer comprising a metal component material and / or a non-metal component material, at least one color layer which can be configured to reflect single color light or multi-color light, at least one adhesive layer connecting the reflective layer and the color layer, wherein the reflective film can reflect light with a wavelength of 280 nm to 2500 nm, thereby distracting birds. The light in this wavelength range is visible light for birds. Reflecting the visible light of birds can make birds notice the obstacles in front of them, and thereby reduce the occurrence of bird strike accidents. Further, the metal component material is selected from at least one of a metal, a metal oxide, and a metal sulfide, wherein the content of the metal component material in the reflective layer is between 0.1 wt% and 10 wt%. Further, the metal includes at least one of gold, silver, manganese, iron, copper, tin, aluminum, zinc, lead, titanium, and titanium. Further, the metal oxide includes at least one of titanium oxide, zinc oxide, aluminum oxide, and lead monoxide; and / or the metal sulfide includes at least one of zinc sulfide, iron sulfide, zinc sulfide, lead sulfide, copper sulfide, cadmium sulfide, and silver sulfide. Further, the non-metal component includes at least one of silicon oxide, ceramic, and organic compounds, wherein the content of the non-metal component material in the reflective layer is between 0.1 wt% and 10 wt%. Further, the transmittance of the reflective film to visible light is as low as or lower than 50%, preferably between 10-.

[0002] 20%, more preferably, as low as or lower than 2%. Further, the metal component-containing material and / or the non-metal component-containing material is deposited on a polymer substrate in the form of a film, the polymer substrate being made of at least one of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl butyral, polyethylene terephthalate, and polyolefin elastomer. Further, the metal component-containing material and / or the non-metal component-containing material is deposited on the polymer substrate by a physical vapor deposition method. Further, the thickness of the reflective layer is between 1 micrometer and 25 micrometers. Further, the metal component-containing material and / or the non-metal component-containing material forms a pattern and / or a design on the polymer substrate. Further, the metal component-containing material and / or the non-metal component-containing material does not form a pattern and / or a design on the polymer substrate. Further, the color layer does not have a pattern and / or a design. Further, the color layer and / or the adhesive layer has an ultraviolet inhibitor. Further, the color layer is a full-body dyeing layer. Further, according to the thickness of the reflective film, the reflective film is configured to have the following structures from bottom to top or from top to bottom:

[0003] - the first layer is the reflective layer,

[0004] - the second layer is the adhesive layer,

[0005] - the third layer is the color layer, whereby the reflective film is capable of reflecting light in all wavelength bands of 280 nm to 2500 nm, or the reflective film is capable of reflecting light at any wavelength and / or in any band of 280 nm to 2500 nm. Further, according to the thickness of the reflective film, the reflective film is configured to have the following structures from bottom to top or from top to bottom:

[0006] - the first layer and the fifth layer are the color layer or the color coating layer laminate,

[0007] - the second layer and the fourth layer are the adhesive layer,

[0008] - the third layer is the reflective layer, whereby the reflective film is capable of reflecting light of any wavelength and / or wavelength band between 280 nm and 2500 nm. According to a second aspect of the present application, embodiments of the present application provide a shading device comprising: a curtain rod fixed on at least one side outside a window frame, and a shading body provided on the curtain rod, the shading body being provided with the reflective film according to the first aspect of the present application. Further, the shading body is a shutter, a pleated shade, a shade roller or a curtain. Further, the shading body has a transmittance of visible light of at most or less than 80%, preferably at most or less than 20%, more preferably at most or less than 10%, more preferably at most or less than 2%. Preferably, the shading device is only used indoors. According to a third aspect of the present application, embodiments of the present application provide a method for preparing a reflective film that is disturbing to birds, comprising the following steps: a) preparing at least one reflective layer comprising a material with a metallic component and / or a material with a non-metallic component; b) applying an adhesive on at least one side of the reflective layer to form at least one adhesive layer; c) providing at least one color layer on the at least one adhesive layer, which can be configured to reflect monochromatic light or polychromatic light, characterized in that the reflective film is capable of reflecting light between 280 nm and 2500 nm, thereby being disturbing to birds. Further, the material with a metallic component is selected from at least one of a metal, a metal oxide, and a metal sulfide, wherein the content of the material with a metallic component in the reflective layer is between 0.1 wt% and 10 wt%. Further, the metal comprises at least one of gold, silver, palladium, platinum, iron, copper, tin, aluminum, mercury, lead, zinc, cadmium, copper, and titanium; and / or the metal oxide comprises at least one of titanium oxide, zinc oxide, aluminum oxide, and lead suboxide; and / or the metal sulfide comprises at least one of zinc sulfide, iron sulfide, zinc sulfide, lead sulfide, copper sulfide, cadmium sulfide, and silver sulfide. Further, the material with a non-metallic component comprises at least one of silicon oxide, ceramic, and organic compounds, wherein the content of the material with a non-metallic component in the reflective layer is between 0.1 wt% and 10 wt%.Further, the material with metal component and / or the material with non-metal component is deposited on a polymer substrate in the form of a film, wherein the polymer substrate is made of at least one of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl butyral, polyethylene terephthalate and polyolefin elastomer. Further, the material with metal component and / or the material with non-metal component is deposited on the polymer substrate by physical vapor deposition or magnetron sputtering. Further, in step b), an adhesive is applied on a first surface of the reflective layer to form a first adhesive layer, and an adhesive is applied on a second surface opposite to the first surface to form a second adhesive layer; and in step c), a first color layer or a first color coating lamination layer is arranged on the first adhesive layer, and a second color layer or a second color coating lamination layer is arranged on the second adhesive layer. Further, at least one color coating lamination layer is arranged on the first adhesive layer or the second adhesive layer, and the step of arranging the color coating lamination layer comprises film forming and curing. Compared with the prior art, the reflective film for visual disturbance of birds according to the present application can bring the following beneficial effects.

[0009] 1. The reflective film for visual disturbance of birds according to the present application is applied indoors to increase diffuse reflection of light and reduce specular reflection, so as to reduce visual illusion of birds;

[0010] 2. The reflective film for visual disturbance of birds according to the present application reflects light with a wavelength between 280 nm and 2500 nm, so as to improve the recognition of obstacles by birds;

[0011] 3. The reflective film for visual disturbance of birds according to the present application does not contain any preset patterns and / or styles, so that the reflective film can be monochromatic or any patterns and / or styles can be arranged thereon to match the appearance design of a building;

[0012] 4. The light shielding device is arranged in the room, so it is convenient to install and remove, and the cost of bird strike prevention modification of the building is saved, and the outdoor weather and climate are avoided, thereby prolonging the service life of the reflective film. Fig. 1 is a structural schematic diagram of a reflective film according to an embodiment of the present application. Fig. 2 is a structural schematic diagram of a reflective film according to another embodiment of the present application. Fig. 3 is a structural schematic diagram of a reflective film according to still another embodiment of the present application. In the drawings, the reference signs are as follows: reflective layer 1, adhesive layer 2, color layer 3, first adhesive layer 2a, first color layer 3a, second adhesive layer 2b, second color layer 3b, and color coating laminated layer 4. In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. It can be understood that the terms "first", "second", etc. appearing in the present text are only for distinguishing different components, and should not be interpreted as a limitation on the components. Moreover, the terms "upper", "lower", "inner", "outer", etc. in the present text are only for facilitating description, and are not used to limit the implementation scope of the present application. Embodiment 1. The present embodiment provides a reflective film for visual disturbance of birds, as shown in Fig. 1, which comprises, from top to bottom, a reflective layer 1, an adhesive layer 2 and a color layer 3. In the present embodiment, the reflective layer 1 comprises a polymer substrate and a material with a metallic component. In other embodiments, the reflective layer 1 comprises a polymer substrate and a material with a non-metallic component. In other embodiments, the reflective layer 1 comprises a polymer substrate, a material with a metallic component, and a material with a non-metallic component. Specifically, the polymer substrate is polyethylene (PE), more preferably low-density polyethylene (LDPE), to provide better softness; and the metallic component is aluminum, and the content of aluminum is 5 wt% based on the total weight of the reflective layer. In other embodiments, the content of aluminum can be 10 wt%, 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt%, 90 wt%, 100 wt%. And the aluminum is deposited on the polymer substrate by a physical vapor deposition (PVD) method, specifically, the physical vapor deposition method can be, for example, magnetron sputtering, evaporation deposition, sputtering, ion plating, magnetron sputtering, cathodic arc deposition, electron beam physical vapor deposition, pulsed laser deposition, etc.In other embodiments, the reflective layer surface can be covered with a transparent layer, also known as a scratch resistant layer, to protect the reflective layer and the metal, if any, in the anti-reflective layer from oxidation. The transparent layer material can be selected from, but not limited to, acrylic. In other embodiments, the transparent layer, also known as a scratch resistant layer, can be a color layer. In other embodiments, the polymer substrate can also be at least one of polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), polyethylene terephthalate, and polyolefin elastomer (POE). In other embodiments, the metal in the metal-containing material can be at least one of gold, silver, copper, iron, tin, zinc, titanium, platinum, palladium, copper, titanium. Likewise, the metal is deposited on the polymer substrate by physical vapor deposition. The metal content can also be 0.1 wt%, 0.5 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%. In other embodiments, the metal content can also be 10 wt%, 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt%, 90 wt%, 100 wt%. In other embodiments, the metal content can also be any value between 0.1 wt% and 100 wt%. In other embodiments, the metal-containing material can also be a metal oxide such as titanium oxide, zinc oxide, aluminum oxide, lead suboxide, etc. In other embodiments, the metal-containing material can also be a metal sulfide such as zinc sulfide, iron sulfide, zinc sulfide, lead sulfide, copper sulfide, cadmium sulfide, silver sulfide, etc. The thickness of the reflective layer in this embodiment is 1 micron. In other embodiments, the thickness of the reflective layer can also be 10 microns, 15 microns, 20 microns, 25 microns. In other embodiments, the thickness of the reflective layer is between 1 micron and 25 microns. In some embodiments, the reflective film thickness is between 0.05 millimeters and 0.25 millimeters. The adhesive layer 2 is formed from a transparent adhesive, which can be any transparent adhesive available on the market, for example, a transparent epoxy adhesive, an acrylic adhesive, a resin adhesive, etc. The transparent adhesive does not affect the absorption and reflection of light by the reflective layer 1 and does not affect the color of the appearance of the reflective film. In some embodiments, the adhesive has an ultraviolet inhibitor.In some embodiments, the adhesive has a color. In this embodiment, color layer 3 is a transparent adhesive film that is blue, which can be any blue transparent adhesive film available on the market, such as a blue PVC adhesive film or a blue PE adhesive film. Birds' eyes are particularly sensitive to certain colors, such as red, blue, ultraviolet, etc. Therefore, in other embodiments, color layer 3 can be red, blue, or other colors. When the reflective film reflects these colors that are sensitive to birds, it can attract the attention of flying birds to the obstacles in front. In some embodiments, the color layer is a full-body dyeing layer. A full-body dyeing layer refers to a process in which the entire thickness of a material (such as the adhesive film in the present invention) is dyed in such a way that the color penetrates the entire depth of the material. This results in a more uniform and durable color that is less prone to fading or wear. A full-body dyeing layer means that the color is not only on the surface but also penetrates the entire material. This is advantageous because it ensures that scratches or wear are less noticeable, as the color remains consistent throughout the material thickness. The process of achieving a full-body dyeing layer can vary depending on the material used and the dyeing technique, which is well known in the art and will not be described here. The reflective film in this embodiment is intended to be installed on a light-blocking device indoors. In this embodiment, color layer 3 is provided on reflective layer 1, which is suitable as a mounting surface, and the side without color layer 3 is the light-receiving surface. In other embodiments, reflective layer 1 can also be used as the mounting surface, and color layer 3 as the light-receiving surface. The reflective film in this embodiment is thin and has good flexibility, making it suitable for application on the light-receiving surface of, for example, a curtain or a light-blocking roller, to diffuse the light. Diffuse reflection refers to the phenomenon where a rough surface reflects light in various directions when a parallel beam of incident light hits it. In contrast to specular reflection, where the reflected light is parallel to the incident light, diffuse reflection allows observers to view an object from different angles, which is particularly advantageous for preventing bird strikes. Especially when a smooth surface of a curtain wall or window reflects the landscape such as the sky or habitat, birds are likely to mistake the curtain wall or window as a place to reach. Therefore, a reflective film designed to diffuse light can minimize specular reflection to reduce visual illusions for birds, thereby reducing bird strikes. Additionally, the reflective film in this embodiment can reflect light with a wavelength between 280 nm and 2500 nm. This wavelength range covers ultraviolet and red light, which are also visible to birds. Reflecting the visible light of birds can attract their attention to the obstacles in front. The reflective film can be attached to the light-receiving surface of the light-blocking device by adhesive or any known reversible connection method (such as clamping).Thus, the bird strike prevention retrofitting of the building can be completed by only installing the reflective film on the light shielding device, which is very convenient and cost-saving. Similarly, the reflective film is also easy to be removed. Moreover, since the reflective film is arranged indoors, the life of the reflective film can be prolonged due to the reduction of the interference of the outdoor climate environment. In the present application, the "disturbing the vision of birds" refers to the interference and / or warning to the vision of birds by the light with the wavelength between 280 nm and 2500 nm, so as to enhance the recognition of the birds to the obstacles, especially the glass of the building, so as to achieve the bird repelling and the reduction of the bird strike. Furthermore, the reflective film of the present application can effectively reduce the stay of the small birds at the window, and reduce the sanitary problem caused by the excretion of the small birds at the window. In the present application, the visible light transmittance of the reflective film is 80% or lower than 80%, further, 50% or lower than 50%, 20% or lower than 20%, 10% or lower than 10%, and in some embodiments, it can be 2% or lower than 2%. o Example 2 The present example provides a bird strike prevention reflective film including two color layers, as shown in FIG. 2, from top to bottom, including: a second color layer 3b, a second adhesive layer 2b, a reflective layer 1, a first adhesive layer 2a, and a first color layer 3a. In the present example, the reflective layer 1 includes a material of a polymer substrate and a metal component. Specifically, the polymer substrate is polypropylene (PP) and the material of the metal component includes titanium dioxide. The content of titanium dioxide is 8 wt% based on the total weight of the reflective layer 1. oIn other embodiments, the titanium dioxide can be present in an amount of 10 wt%, 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt%, 90 wt%, 100 wt%. Similarly, the titanium dioxide in this embodiment is also deposited on the polymer substrate by physical vapor deposition. In other embodiments, the reflective layer 1 includes a polymer substrate and a material having a non-metallic component. In other embodiments, the reflective layer 1 includes a polymer substrate, a material having a metallic component, and a material having a non-metallic component. Specifically, the material having a non-metallic component can be an organic compound such as a benzotriazole compound, a triazine compound, a benzophenone compound, a benzimidazole compound, a malonate compound, a benzoxazine compound, or can be silicon oxide or a ceramic. In other embodiments, the non-metallic component can be present in an amount of 0.1 wt%, 0.5 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%. In other embodiments, the non-metallic component can be present in an amount of 10 wt%, 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt%, 90 wt%, 100 wt%. In other embodiments, the non-metallic component can be present in an amount of any value between 0.1 wt% and 100 wt%. Similarly to embodiment one, the first adhesive layer 2a and the second adhesive layer 2b in this embodiment are both formed of a transparent adhesive. The first and second adhesive layers 2a, 2b can be formed of the same adhesive or can be formed of different adhesives. For example, the first and second adhesive layers 2a, 2b are both formed of a transparent epoxy adhesive. In actual applications, the composition of the adhesive can be adjusted according to actual conditions. For example, the second adhesive layer 2b on the light receiving surface of the reflective layer 1 can be formed of an adhesive containing an ultraviolet inhibitor, such as an ultraviolet resistant epoxy resin. The ultraviolet resistant adhesive is less likely to yellow, become brittle, and the like after long-term use, and can enhance the ultraviolet resistant properties of the reflective film while prolonging the service life of the reflective film. In another embodiment, the first and / or second color layers 3a, 3b also include an ultraviolet inhibitor, for example, the ultraviolet inhibitor is added when the first and / or second color layers 3a, 3b are prepared. The ultraviolet inhibitor can be any known composition in the prior art, such as a benzotriazole compound.The first and / or second color layer 3a, 3b containing the ultraviolet light inhibitor can enhance the anti-ultraviolet light property of the reflective film while prolonging the life of the reflective film. Unlike the first embodiment, the first color layer 3a and the second color layer 3b in this embodiment are both red PVC films. The red PVC films transmit red light having a wavelength between 650 nm and 2500 nm, and enable the reflective film to reflect a specific color band having a wavelength between 280 nm and 650 nm. In other embodiments, the first and second color layers 3a, 3b can be replaced by films of other colors, so that the reflective film can reflect, for example, orange light having a wavelength between 635 nm and 590 nm, yellow light having a wavelength between 590 nm and 560 nm, or blue light having a wavelength between 490 nm and 450 nm, etc. It can even reflect ultraviolet light having a wavelength between 280 nm and 420 nm. It can be appreciated that, in order to enhance the bird-strike prevention effect, colors sensitive to birds, such as red, blue, etc., should be selected. In practical applications, appropriate colors can be selected according to the appearance of the building, and even patterns and / or styles can be provided on the reflective film to match the appearance of the building. The reflective film in this embodiment is intended to be installed on the light-receiving surface of a light-shielding device indoors. Considering the relatively large thickness of the reflective film in this embodiment, it is preferably installed on the light-receiving surface of, for example, the blades of a shutter, so as to avoid folding or bending of the reflective film.A further difference between this embodiment and the above embodiments is that the light receiving surface of the reflective layer 1 is provided with a color coating lamination layer 4 instead of the second color layer 3b. The color coating lamination layer 4 can be made of a colored paint, for example, green polyester paint. Similar to the above embodiments, the reflective film of this embodiment is capable of reflecting a specific color having a wavelength between 280 nm and 2500 nm. It can be understood that preferably, the color of the color coating lamination layer 4 should match the color of the first color layer 3a so that the reflective film reflects the specific color. The reflective film of this embodiment is also intended to be installed on the light receiving surface of a shading device used indoors. In some embodiments, a reflective film is provided, which comprises from top to bottom a second color coating lamination layer, a second adhesive layer, a reflective layer, a first adhesive layer, and a first color coating lamination layer. Embodiment Four This embodiment provides a shading device (not shown in the figure) comprising a curtain rod arranged above a window frame and a shading body arranged on the curtain rod, which is preferably capable of retractable movement. In this embodiment, the shading body is a shading roller. The shading device further comprises a manual control device, for example, a pull ring, to control the movement of the shading roller. An automatic control device can also be provided. A reflective film according to the present application is arranged on the light receiving surface of the shading body. The shading body can be made of any suitable material in the prior art, for example, nylon, polyester fiber, etc. For example, the reflective layer 1 of the reflective film of embodiment one of the present application is arranged on the light receiving surface of the shading device by gluing or clamping. The reflective film can be arranged on an existing shading device, thus saving the cost of bird strike prevention modification of the building, and also avoiding the interference of outdoor weather and climate, thereby prolonging the service life of the reflective film. Accordingly, the reflective film is also easy to disassemble. When the shading device needs to be replaced, the reflective film can be recycled at the same time to improve the utilization rate of the reflective film. The visible light transmittance of the shading device is 80% or lower than 80%, further, lower than 50%, lower than 20%, lower than 10%, and in some embodiments, even lower than 2%. This is desirable for reducing bird strike accidents. Low visible light transmittance means low low glass light transmittance, therefore, birds will not see the landscape on the other side of the building through the glass, thereby reducing the visual illusion of birds. In use, the shading body is adapted to shade at least 25%, preferably 50%, and more preferably 75% of the area of the window to produce a better bird strike prevention effect. In other embodiments, the shading body can also be an accordion shade, a shading roller, or a window curtain.Example five provides a method for preparing a bird strike prevention reflective film, comprising the following steps: a) preparing at least one reflective layer, the reflective layer having a metal component material; in this embodiment, the reflective layer is prepared by depositing aluminum on a polyethylene substrate through metal sputtering; b) applying an adhesive on the reflective layer to form at least one adhesive layer; in this embodiment, a transparent epoxy adhesive is applied on the reflective layer; c) disposing at least one color layer on the adhesive layer; in this embodiment, a blue PVC film is used. In some embodiments, adhesive layers can be applied on both sides of the reflective layer, and a color-coated laminated layer is disposed on at least one adhesive layer, the step of preparing the color-coated laminated layer further comprising film forming and curing. It can be understood that in other embodiments, the reflective layer can also include a non-metal component material, and its specific selection can refer to the above embodiments. In summary, according to the reflective film of the present application: when applied indoors, it can increase the diffuse reflection of light and reduce the specular reflection, thereby reducing the visual illusion of birds; it reflects light with a wavelength between 280 nm and 2500 nm, thereby improving the recognition of obstacles by birds; it does not contain any pre-set patterns and / or styles, so the bird strike prevention reflective film according to the present application can be monochromatic or have any patterns and / or styles disposed thereon to match the appearance design of the building, and it can be conveniently installed and removed on the light shielding device indoors, thereby saving the cost of bird strike prevention modification of the building, and avoiding the invasion of outdoor weather and climate, thereby prolonging the service life of the reflective film. It should be understood that although the present specification is described in the form of examples, each example does not necessarily contain only a single technical solution. The description in the present specification is only for the sake of clarity. Those skilled in the art should consider the present specification as a whole, and the technical solutions in each example can be appropriately combined to form other examples that those skilled in the art can understand. For example: the reflective layer, metal component material, non-metal component material, color layer, adhesive layer, description of the reflective film and their properties in different embodiments can be appropriately combined to form new embodiments. However, the scope of protection of the present application is defined by the appended claims, not the foregoing description, so all modifications falling within the equivalent meaning and scope of the claims are included in the present application and any reference thereto.

Claims

CLAIM 1. A bird-disturbing reflective film comprising: a) at least one reflective layer comprising a material having a metallic component and / or a material having a non-metallic component, deposited in the form of a film on a polymer substrate, the reflective layer having a thickness of between 1 micron and 25 microns, the material having a metallic component and / or the material having a non-metallic component not being patterned and / or styled on the polymer substrate, the material having a metallic component being selected from at least one of a metal, a metal oxide, and a metal sulfide, wherein the metal comprises at least one of gold, silver, palladium, platinum, iron, copper, tin, aluminum, zinc, lead, cadmium, mercury, rhodium, ruthenium, copper, and titanium, and the material having a non-metallic component comprises at least one of silicon oxide, ceramic, and an organic compound; b) at least one color layer, which is a full-body color layer and can be configured to reflect a single color light or a multi-color light, the color layer having an ultraviolet inhibitor; c) at least one adhesive layer connecting the reflective layer and the color layer, the adhesive layer having an ultraviolet inhibitor; characterized in that the reflective film has a thickness of between 0.05 mm and 0.25 mm and a transmittance of visible light of up to or less than 2% and is capable of reflecting light having a wavelength of between 280 nm and 2500 nm, thereby providing a visual disturbance to birds.

2. A bird-disturbing reflective film comprising: at least one reflective layer comprising a material having a metallic component and / or a material having a non-metallic component, at least one color layer, which can be configured to reflect a single color light or a multi-color light, at least one adhesive layer connecting the reflective layer and the color layer, characterized in that the reflective film is capable of reflecting light having a wavelength of between 280 nm and 2500 nm, thereby providing a visual disturbance to birds.

3. The reflective film of claim 2, wherein the first and second reflective layers are each formed of a material selected from the group consisting of silver, aluminum, and gold. the material having a metallic component is selected from at least one of a metal, a metal oxide, and a metal sulfide.

4. The reflecting film according to claim 3, wherein the metal comprises at least one of gold, silver, palladium, platinum, iron, copper, tin, aluminum, zinc, lead, cadmium, mercury, rhodium, ruthenium, copper, and titanium.

5. The reflecting film according to claim 3, wherein the metal oxide comprises at least one of titanium oxide, zinc oxide, aluminum oxide, and lead suboxide; and / or the metal sulfide comprises at least one of zinc sulfide, iron sulfide, zinc sulfide, lead sulfide, copper sulfide, cadmium sulfide, and silver sulfide.

6. The reflecting film according to any one of claims 2 to 5, wherein the material having a non-metallic component comprises at least one of silicon oxide, ceramic, and an organic compound.

7. The reflecting film according to any one of claims 2 to 5, wherein the reflecting film is a multilayer film. the reflective film has a transmittance of visible light of up to or less than 80% 8. The reflecting film according to claim 6, wherein the reflective film has a transmittance of visible light of up to or less than 80% 9. The reflecting film according to claim 7, wherein the reflective film has a transmittance of visible light of between 10-20% 10. The reflective film according to claim 8, characterized by, the reflective film has a transmittance of visible light of between 10-20% 11. The reflective film according to claim 7, characterized by, the reflective film has a transmittance of visible light of up to or less than 2% 12. The reflecting film according to claim 8, characterized by the reflective film has a transmittance of visible light of up to or less than 2% 13. The reflective film of claim 6, wherein The metal component material and / or the non-metal component material is deposited on a polymer substrate in the form of a film, the polymer substrate being made of at least one of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl butyral, polyethylene terephthalate, and polyolefin elastomer. The metal component material and / or the non-metal component material is deposited on the polymer substrate by a physical vapor deposition method.

14. The reflective film of claim 13, wherein The thickness of the reflective layer is between 1 micrometer and 25 micrometers.

15. The reflective film according to any one of claims 9 to 14, wherein the reflective film is a multilayer film. The metal component material and / or the non-metal component material forms a pattern and / or a design on the polymer substrate.

16. The reflective film according to any one of claims 13-14, wherein The metal component material and / or the non-metal component material does not form a pattern and / or a design on the polymer substrate.

17. The reflective film according to any one of claims 13-14, wherein The color layer does not have a pattern and / or a design.

18. The reflective film according to any one of claims 9 to 14, wherein the reflective film is a multilayer film. The color layer and / or the adhesive layer has an ultraviolet inhibitor.

19. The reflective film according to any one of claims 9 to 14, wherein The color layer is a full-body color layer.

20. The reflective film according to any one of claims 9 to 14, wherein According to the thickness of the reflective film, the reflective film is configured to have the following structure from bottom to top or from top to bottom:

21. The reflective film according to any one of claims 9 to 14, wherein - the first layer is the reflective layer, - the second layer is the adhesive layer, - the third layer is the color layer, whereby the reflective film can reflect light of all wavelengths between 280 nm and 2500 nm. According to the thickness of the reflective film, the reflective film is configured to have the following structure from bottom to top or from top to bottom: 15 22. The reflective film according to any one of claims 9 to 14, wherein - the first layer is the reflective layer, - the second layer is the adhesive layer, - the third layer is the color layer, whereby the reflective film can reflect light of any wavelength and / or wavelength band between 280 nm and 2500 nm. According to the thickness of the reflective film, the reflective film is configured to have the following structure from bottom to top or from top to bottom:

23. The reflective film according to any one of claims 9-14, wherein the reflective film has a thickness of 0.5 to 2.0 μm. - the first layer and the fifth layer are the color layer or the color-coated laminated layer, - the second layer and the fourth layer are the adhesive layer, - the third layer is the reflective layer, whereby the reflective film can reflect light of any wavelength and / or wavelength band between 280 nm and 2500 nm. ​ 16

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