Weather-proof reflective film

Abstract

The utility model discloses a weather-proof reflective film, which belongs to the technical field of optical elements and comprises a prism layer, the prism layer comprises a plurality of prism units distributed in an array, each prism unit is of a triangular pyramid structure, and a plurality of layer concave parts are arranged on the peripheral side of each prism unit from the top end in a step shape. The prism units are fixedly provided with extinction materials on the bottom surfaces of the layer concave parts from bottom to top, and the light transmittance of the extinction materials is lower than that of the prism units. According to the weather-proof reflective film provided by the utility model, by arranging the plurality of extinction materials which are arranged at intervals, light path gathering for retroreflection is effectively reduced, the upper limit of light intensity is effectively reduced, and meanwhile, by arranging the inner concave parts, the light paths among the extinction materials are further dispersed, so that the light intensity is improved. And a person is not easy to feel uncomfortable when directly looking at the light spot.

Description

Technical Field

[0001] This utility model relates to the field of optical element technology, specifically to a weather-resistant reflective film. Background Technology

[0002] Reflective film, also known as retroreflective film, is a new type of reflective material made based on the refraction and total internal reflection principle of a triangular pyramid. The triangular pyramid has three mutually orthogonal reflective surfaces. Through the combined reflection of the three reflective surfaces, the incident light can be reflected back along the original light path.

[0003] Microprism reflective film is often used at the rear of vehicles such as trucks and vans. By efficiently reflecting the headlights, it effectively warns drivers of following vehicles and ensures driving safety.

[0004] During use, it was found that when drivers of following vehicles observe light spots formed by the reflection of their own vehicle's lights on the reflective film of the vehicle in front within a certain time period, it may cause visual discomfort such as glare. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a weather-resistant reflective film.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a weather-resistant reflective film, comprising a prism layer, wherein the prism layer comprises a plurality of arrayed prism units, the prism units having a triangular pyramid structure, and the periphery of the prism unit having a plurality of recessed layers arranged in a stepped manner from its top, wherein an anti-light material is fixedly disposed on the bottom surface of the recessed layers of the prism unit from bottom to top, and the light transmittance of the anti-light material is lower than the light transmittance of the prism unit.

[0007] The present invention is further configured such that: the recessed layer and the prism unit each have three mutually orthogonal reflective surfaces, and the bottom surfaces of several recessed layers are arranged in parallel.

[0008] The present invention is further configured such that the setting range of the matting material does not exceed the extended surface of the adjacent reflective surfaces on both sides.

[0009] The present invention is further configured such that: a color layer arranged near the recess of the prism layer and a reflective layer arranged away from the recess of the prism layer are respectively fixedly arranged on both sides of the prism layer, and the color layer wets the surface of the prism layer.

[0010] The present invention is further configured such that a protective film is coated on the side of the color layer away from the prism layer.

[0011] The present invention is further configured such that: a pressure-sensitive adhesive layer and a release layer are sequentially fixedly connected to the side of the reflective layer away from the prism layer, and the pressure-sensitive adhesive layer and the release layer are separable.

[0012] In summary, this utility model has the following beneficial effects: by setting several matting materials at intervals, the back reflection caused by light path convergence is effectively reduced, and the upper limit of light intensity is effectively lowered. At the same time, by setting the concave part, the light path between the matting materials is further dispersed, so that people are less likely to feel discomfort when looking directly at the light spot. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial enlarged view of the prism layer of this utility model.

[0015] In the diagram: 1. Protective film; 2. Color layer; 3. Prism layer; 31. Prism unit; 311. Layer recess; 32. Matting material; 4. Reflective layer; 5. Pressure-sensitive adhesive layer; 6. Release layer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] A weather-resistant reflective film, such as Figure 1 as well as Figure 2As shown, the prism layer 3 includes a plurality of arrayed prism units 31. Each prism unit 31 has a triangular pyramid structure. The periphery of each prism unit 31 has a plurality of recesses 311 arranged in a stepped manner from its top. An anti-light material 32 is fixedly disposed on the bottom surface of the recesses 311 of each prism unit 31 from bottom to top. The light transmittance of the anti-light material 32 is lower than that of the prism unit 31. In addition, a color layer 2 arranged near the recesses 311 and a reflective layer 4 arranged away from the recesses 311 are respectively fixedly disposed on both sides of the prism layer 3. The color layer 2 wets the surface of the prism layer 3. A protective film 1 is coated on the side of the color layer 2 away from the prism layer 3. A pressure-sensitive adhesive layer 5 and a release layer 6 are sequentially fixedly connected on the side of the reflective layer 4 away from the prism layer 3. The pressure-sensitive adhesive layer 5 and the release layer 6 are separable. In order to ensure the reflectivity of the reflective film, both the recesses 311 and the prism units 31 have three mutually orthogonal reflective surfaces.

[0018] Specifically, a template is first carved, and then a microprism paste is applied to the template by roller coating. After cooling, several prism units 31 with three-layer recesses 311 are formed, which constitute the prism layer 3. The bottom edges of the six prism units 31 can be arranged to form a hexagonal structure. A reflective layer 4 is formed on one side of the prism layer 3 by vacuum evaporation. Then, a release layer 6 coated with pressure-sensitive adhesive is combined with the reflective layer 4.

[0019] Subsequently, it is separated from the template, and matting material 32 is applied to the template. Then, a layer of resin material is applied to the template to form color layer 2. Matting material 32 is also attached to color layer 2. In this application, the matting agent is applied by spraying. Then, the template and reflective film are reattached. After cooling, it is peeled off from the template. Finally, a protective film 1 is applied to the surface of color layer 2 to form the reflective film of this embodiment.

[0020] like Figure 1 as well as Figure 2 As shown, since this application focuses on outdoor scenarios such as attachment to freight vehicles, the protective film 1 and the resin material are both made of materials with good weather resistance. Specifically, the protective film 1 is made of polycarbonate material, which has good light transmittance and weather resistance between three and five years. The resin material is specifically polyurethane resin material.

[0021] like Figure 1 as well as Figure 2 As shown, based on the ease of demolding the template, the demolding structure of the reflective film is as close to a gradually decreasing constriction structure as possible. Specifically, the setting range of the matting material 32 does not exceed the extension surface of the adjacent reflective surfaces on both sides. At the same time, in order to reduce the light path from being reflected or diffracted to the position of the matting material 32, the bottom surfaces of several layers of recesses 311 are arranged in parallel.

[0022] Beneficial effects: Compared with existing glass microsphere reflective film technology, by setting several matting materials 32 at intervals, the light path convergence and retroreflection are effectively reduced, and the upper limit of light intensity is effectively lowered. At the same time, by setting the concave part, the light path between the matting materials 32 is further dispersed, so that people are less likely to feel discomfort when looking directly at the light spot.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weather-resistant reflective film, comprising a prism layer, characterized in that: The prism layer includes a plurality of arrayed prism units. Each prism unit has a triangular pyramid structure. The periphery of each prism unit is provided with a plurality of recessed layers in a stepped manner from its top. An exfoliating material is fixedly disposed on the bottom surface of the recessed layers of each prism unit from bottom to top. The light transmittance of the exfoliating material is lower than that of the prism unit.

2. The weather-resistant reflective film according to claim 1, characterized in that: The recessed layer and the prism unit each have three mutually orthogonal reflective surfaces, and the bottom surfaces of several of the recessed layers are arranged in parallel.

3. The weather-resistant reflective film according to claim 2, characterized in that: The matting material is installed within a range that does not exceed the extended surface of the adjacent reflective surfaces on both sides.

4. The weather-resistant reflective film according to claim 1, characterized in that: On both sides of the prism layer, a color layer is fixedly arranged near the recess of the layer and a reflective layer is arranged away from the recess of the layer, and the color layer wets the surface of the prism layer.

5. The weather-resistant reflective film according to claim 4, characterized in that: The side of the color layer away from the prism layer is coated with a protective film.

6. The weather-resistant reflective film according to claim 4, characterized in that: The reflective layer is fixedly connected to a pressure-sensitive adhesive layer and a release layer on the side away from the prism layer, and the pressure-sensitive adhesive layer and the release layer are separable.

Images