Photochromic reflective film

Abstract

The utility model discloses a light-sensitive color-changing reflective film, and particularly relates to the technical field of reflective films, the light-sensitive color-changing reflective film comprises a film body, the film body comprises a reflective film, a light-transmitting layer is fixedly arranged at the bottom of the reflective film, a light-sensitive color-changing layer is fixedly arranged at the bottom of the light-transmitting layer, and waterproof layers are fixedly arranged at the bottom of the light-sensitive color-changing layer and the top of the reflective film. Wear-resistant layers are fixedly arranged on the sides, away from each other, of the two waterproof layers, and the light-transmitting layer is a first transparent film. The reflective film, the light-transmitting layer, the photosensitive color-changing layer, the waterproof layer and the wear-resistant layer are firmly wrapped together through the edge sealing film to form the film body, so that the overall strength of the film body can be improved, and part of light penetrates through the PET film, the TPU film and the round blocks to be emitted into the first transparent film and the second transparent film; the photosensitive color-changing powder between every two adjacent transparent adhesive tapes is changed into different colors after sensing light, so that the attractiveness of the film body is improved, meanwhile, part of the light is reflected by the reflective film, and the reflection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reflective films, in particular to a photosensitive color-changing reflective film. Background Art

[0002] Existing reflective film is mainly used to make various reflective signs, vehicle license plates, safety facilities, etc. Its bright colors play an obvious warning role during the day. At night or in low light conditions, its bright reflective effect can effectively enhance people's recognition ability and avoid accidents.

[0003] For example, the reflective film with the prior art publication number CN218383363U, the utility model sets the bead-embedded layer and the surface layer as an integrated structure, and only one layer of mask bead-embedded glue needs to be applied during production, thereby reducing the number of coatings of the reflective film, and further reducing production material costs, equipment costs and labor costs.

[0004] However, the above-mentioned prior art still has the following problems when in use: most of the existing reflective films have a single function and can only reflect light, but cannot change color with light, and the warning effect is low. Based on this, the utility model provides a reflective film that can change color sensitively. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a photosensitive color-changing reflective film, which allows light to be projected into a first transparent film and a second transparent film through a PET film, a TPU film and a plurality of round blocks. The photosensitive color-changing powder between two adjacent transparent adhesive strips changes into different colors after sensing the light, thereby improving the aesthetics of the film body. At the same time, part of the light is reflected by the reflective film to play a reflective role, thereby solving the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photosensitive color-changing reflective film, comprising a film body, the film body comprising a reflective film, a light-transmitting layer is fixedly provided at the bottom of the reflective film, a photosensitive color-changing layer is fixedly provided at the bottom of the light-transmitting layer, a waterproof layer is fixedly provided at the bottom of the photosensitive color-changing layer and the top of the reflective film, a wear-resistant layer is fixedly provided at the side away from the two waterproof layers, the light-transmitting layer is a first transparent film, the first transparent film is fixedly provided at the bottom of the reflective film, the photosensitive color-changing layer is a second transparent film, the second transparent film is fixedly provided at the bottom of the first transparent film, a circular groove is provided at the bottom of the first transparent film and the top of the second transparent film, a plurality of transparent adhesive strips are fixedly provided in the circular groove located at the top of the second transparent film, the plurality of transparent adhesive strips divide the circular groove into a plurality of spaces, and photosensitive color-changing powder is placed in each space.

[0007] In a preferred embodiment, a plurality of circular holes are opened at the bottom of the reflective film, a plurality of round blocks matching the circular holes are fixedly provided on the top of the first transparent film, the plurality of round blocks are respectively inserted into the plurality of circular holes, and a plurality of round blocks are arranged on the top of the first transparent film for light to be emitted into the second transparent film.

[0008] In a preferred embodiment, the outer wall edge of the membrane body is wrapped with an edge-sealing film, and the inner wall of the edge-sealing film is fixed to the outer walls of the reflective film, the light-transmitting layer, the photochromic layer, the waterproof layer and the wear-resistant layer, so as to improve the firmness between the reflective film, the light-transmitting layer, the photochromic layer, the waterproof layer and the wear-resistant layer.

[0009] In a preferred embodiment, the two waterproof layers are both TPU films, and the two TPU films are respectively fixed on the bottom of the photochromic layer and the top of the reflective film to play a waterproof role.

[0010] In a preferred embodiment, the two wear-resistant layers are both PET films, and the two PET films are fixed on the outer walls of the two waterproof layers respectively to improve the wear resistance of the surface of the waterproof layer.

[0011] In a preferred embodiment, a plurality of circular holes are distributed in a circular array on the outer wall of the reflective film to improve the aesthetics of the reflective film.

[0012] In a preferred embodiment, the edge sealing film is bonded with release paper on the top and bottom, and the two release papers are respectively arranged outside the two wear-resistant layers. The wear-resistant layers can be protected by the release papers. Before using the film body, the two release papers are torn off first.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model firmly wraps the reflective film, the light-transmitting layer, the photochromic layer, the waterproof layer and the wear-resistant layer together through the edge-sealing film to form a film body, thereby improving the overall strength of the film body. Part of the light penetrates the PET film, the TPU film and the multiple round blocks and is shot into the first transparent film and the second transparent film. The photochromic powder between the two adjacent transparent adhesive strips changes to different colors after sensing the light, thereby improving the aesthetics of the film body. At the same time, part of the light is reflected by the reflective film to play a reflective role.

[0015] 2. By using TPU film as the waterproof layer, TPU film has high waterproofness, high wear resistance, and excellent transparency, so it can play a waterproof role on the outer wall of the photochromic layer and the reflective film to prevent water from corroding the photochromic layer and the reflective film. PET film is used as the wear-resistant layer. PET film has good transparency, strength and wear resistance, so it can play a wear-resistant role on the outer wall of the waterproof layer and extend the service life of the waterproof layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of the release paper and edge-sealing paper of the utility model;

[0018] Figure 3 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 4 This is a structural diagram of the reflective film and light-transmitting layer of the utility model;

[0020] Figure 5 It is a top view of the photosensitive color-changing layer of the utility model.

[0021] The reference numerals are: 1, film body; 2, reflective film; 3, light-transmitting layer; 4, photochromic layer; 5, waterproof layer; 6, wear-resistant layer; 7, round hole; 8, round block; 9, edge-sealing film; 10, release paper;

[0022] 301, first transparent film; 302, circular groove; 303, transparent adhesive strip; 304, space; 305, photochromic powder;

[0023] 401. A second transparent film. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a photochromic reflective film, comprising a film body 1, wherein the film body 1 comprises a reflective film 2, a light-transmitting layer 3 is fixedly arranged at the bottom of the reflective film 2, a photochromic layer 4 is fixedly arranged at the bottom of the light-transmitting layer 3, a waterproof layer 5 is fixedly arranged at the bottom of the photochromic layer 4 and at the top of the reflective film 2, and a wear-resistant layer 6 is fixedly arranged at the side away from the two waterproof layers 5;

[0026] Specifically, the light-transmitting layer 3 is a first transparent film 301, which is fixedly arranged at the bottom of the reflective film 2, and the photochromic layer 4 is a second transparent film 401, which is fixedly arranged at the bottom of the first transparent film 301. A circular groove 302 is provided at the bottom of the first transparent film 301 and at the top of the second transparent film 401. A plurality of transparent adhesive strips 303 are fixedly arranged in the circular groove 302 located at the top of the second transparent film 401. The plurality of transparent adhesive strips 303 divide the circular groove 302 into a plurality of spaces 304, and a photochromic powder 305 is placed in each space 304. Specifically, the photochromic powder 305 is a substance that uses UVA energy to open photosensitive molecular bonds, so that the bonds jump from a low energy level to a high energy level, thereby producing a color change. The color change effect of the photochromic powder 305 is that the colorless material changes color after encountering sunlight, such as rose red, purple, etc. In addition, the photochromic powder has a variety of color change schemes, which can be selected according to actual production needs;

[0027] In addition, a plurality of circular holes 7 are provided at the bottom of the reflective film 2, a plurality of round blocks 8 matching the circular holes 7 are fixedly provided at the top of the first transparent film 301, and the plurality of round blocks 8 are respectively inserted into the plurality of circular holes 7. A plurality of round blocks 8 are provided on the top of the first transparent film 301 for light to be emitted into the second transparent film 401, and the plurality of circular holes 7 are distributed in a circular array on the outer wall of the reflective film 2, for improving the aesthetics of the reflective film 2;

[0028] The outer wall edge of the membrane body 1 is wrapped with an edge sealing film 9, and the inner wall of the edge sealing film 9 is fixed to the outer walls of the reflective film 2, the light-transmitting layer 3, the photochromic layer 4, the waterproof layer 5 and the wear-resistant layer 6, so as to improve the firmness between the reflective film 2, the light-transmitting layer 3, the photochromic layer 4, the waterproof layer 5 and the wear-resistant layer 6.

[0029] The reflective film 2, the light-transmitting layer 3, the photochromic layer 4, the waterproof layer 5 and the wear-resistant layer 6 are firmly wrapped together by the edge-sealing film 9 to form a film body 1, thereby improving the overall strength of the film body 1. When in use, part of the light is transmitted through the PET film, the TPU film and the multiple round blocks 8 on the first transparent film 301 to the second transparent film 401, and the photochromic powder 305 between the second transparent film 401 and the first transparent film 301 changes to different colors after sensing the light, thereby improving the aesthetics of the film body 1, and part of the light is irradiated onto the reflective film 2 and reflected by the reflective film 2.

[0030] Refer to the instruction manual Figure 1-5 The two waterproof layers 5 are both TPU films, which are respectively fixed on the bottom of the photochromic layer 4 and the top of the reflective film 2 to play a waterproof role. The two wear-resistant layers 6 are both PET films, which are respectively fixed on the outer walls of the two waterproof layers 5 to improve the wear resistance of the surface of the waterproof layer 5.

[0031] In addition, release papers 10 are bonded to the top and bottom of the edge sealing film 9 , and the two release papers 10 are respectively arranged on the outside of the two wear-resistant layers 6 . Before using the film body 1 , the two release papers 10 are torn off first, and the release papers 10 can be used to protect the wear-resistant layer 6 .

[0032] TPU film is used as the waterproof layer 5. TPU film is an environmentally friendly high molecular polymer with high waterproofness, high wear resistance, high tensile strength and elongation, excellent transparency, cold resistance and high elasticity. Therefore, it can play a waterproof role on the outer wall of the photochromic layer 4 and the reflective film 2 to prevent water from corroding the photochromic layer 4 and the reflective film 2. PET film is used as the wear-resistant layer 6. PET film is a common plastic film material with good transparency, strength and wear resistance. Therefore, it can play a wear-resistant role on the outer wall of the waterproof layer 5 to extend the service life of the waterproof layer 5.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A photosensitive color-changing reflective film, comprising a film body (1), characterized in that: The film body (1) comprises a reflective film (2), a light-transmitting layer (3) is fixedly provided at the bottom of the reflective film (2), a photochromic layer (4) is fixedly provided at the bottom of the light-transmitting layer (3), a waterproof layer (5) is fixedly provided at the bottom of the photochromic layer (4) and at the top of the reflective film (2), and a wear-resistant layer (6) is fixedly provided at the side away from the two waterproof layers (5); The light-transmitting layer (3) is a first transparent film (301), the first transparent film (301) is fixedly arranged at the bottom of the light-reflecting film (2), and the photochromic layer (4) is a second transparent film (401), the second transparent film (401) is fixedly arranged at the bottom of the first transparent film (301); A circular groove (302) is provided at the bottom of the first transparent film (301) and at the top of the second transparent film (401). A plurality of transparent adhesive strips (303) are fixed in the circular groove (302) located at the top of the second transparent film (401). The plurality of transparent adhesive strips (303) divide the circular groove (302) into a plurality of spaces (304). Photosensitive color-changing powder (305) is placed in each space (304).

2. The photochromic reflective film according to claim 1, characterized in that: The bottom of the reflective film (2) is provided with a plurality of circular holes (7), and the top of the first transparent film (301) is fixed with a plurality of circular blocks (8) adapted to the circular holes (7), and the plurality of circular blocks (8) are respectively inserted into the plurality of circular holes (7).

3. The photochromic reflective film according to claim 2, characterized in that: The plurality of circular holes (7) are distributed in a circular array on the outer wall of the reflective film (2), so as to improve the aesthetics of the reflective film (2).

4. The photochromic reflective film according to claim 1, characterized in that: The outer wall edge of the film body (1) is coated with an edge-sealing film (9), and the inner wall of the edge-sealing film (9) is fixed to the outer walls of the reflective film (2), the light-transmitting layer (3), the photochromic layer (4), the waterproof layer (5) and the wear-resistant layer (6), so as to improve the firmness between the reflective film (2), the light-transmitting layer (3), the photochromic layer (4), the waterproof layer (5) and the wear-resistant layer (6).

5. The photochromic reflective film according to claim 4, characterized in that: Release papers (10) are bonded to the top and bottom of the edge sealing film (9), and the two release papers (10) are respectively arranged on the outside of the two wear-resistant layers (6) to protect the wear-resistant layers (6).

6. The photochromic reflective film according to claim 1, characterized in that: The two waterproof layers (5) are both TPU films, and the two TPU films are respectively fixed on the bottom of the photochromic layer (4) and the top of the reflective film (2) to play a waterproof role.

7. The photochromic reflective film according to claim 1, characterized in that: The two wear-resistant layers (6) are both PET films, and the two PET films are respectively fixed on the outer walls of the two waterproof layers (5) to improve the wear resistance of the surface of the waterproof layer (5).

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