CN219245797U

CN219245797U - Self-light-storage reflective film

Info

Publication number: CN219245797U
Application number: CN202320184638.XU
Authority: CN
Inventors: 林明聪; 林聪辉
Original assignee: Quanzhou Tongxing Reflective Material Co ltd
Current assignee: Quanzhou Tongxing Reflective Material Co ltd
Priority date: 2023-02-11
Filing date: 2023-02-11
Publication date: 2023-06-23
Anticipated expiration: 2033-02-11

Abstract

The utility model relates to the technical field of reflective films, in particular to a self-light-storage reflective film which comprises a diffuse reflective layer, a thermochromic layer, a UV reflective layer and a self-light-storage layer which are sequentially arranged from top to bottom, wherein the thermochromic layer is made of a reversible thermochromic film, the diffuse reflective layer is made of a PVC film, a concave-convex surface is arranged on the PVC film, and a nano silicon dioxide hydrophobic coating is coated on the upper surface of the diffuse reflective layer. The beneficial effects are that: the self-light-storage layer provides light for the UV reflecting layer, so that the self-light-storage layer has a self-luminous function at night, and the warning distance of the reflecting film serving as a traffic sign is prolonged; the temperature sensing color-changing layer enables the reflective film to be different in color at different temperatures, and has a certain reminding and warning effect; the concave-convex surface structure of the diffuse reflection layer enables reflected light to be softer; the nano silicon dioxide hydrophobic coating is hydrophobic, oleophobic and self-cleaning; the adhesive made of the epoxy resin is little affected by temperature and is not easy to fall off.

Description

Self-light-storage reflective film

Technical Field

The utility model relates to the technical field of reflective films, in particular to a self-light-storage reflective film.

Background

The reflective film is widely applied to the fields of traffic signs, footwear, packaging and the like, wherein the proportion of the microprism reflective film in various reflective films is larger and larger due to the excellent retroreflection property. The existing reflective film has the following problems in use: 1. the reflective film depends on light rays, and has poor reflective effect in a dark environment; 2. the common reflective film has single function, cannot change color according to the change of the ambient temperature, and has limited use occasions; 3. when the reflective film is used as a road sign board, the reflected light is too strong to influence the normal driving of a driver, and the reflective film is used outdoors for a long time, so that the reflective effect of dust and rainwater on the reflective film is greatly influenced. For this reason, improvements to the prior art retroreflective sheeting are needed.

Disclosure of Invention

In order to overcome the technical defects in the prior art, the utility model provides the self-light-storage reflective film which has a self-light-storage function, can change color according to the external temperature and has soft reflective light.

The technical scheme adopted by the utility model is as follows: the utility model provides a from holding light reflective membrane, includes from last diffuse reflection layer, temperature sensing discolour layer, UV reflector layer and the from holding light layer that sets gradually down, temperature sensing discolour layer adopts reversible temperature sensing discolour film to make, the diffuse reflection layer adopts the PVC membrane to make, be equipped with the concave-convex surface on the PVC membrane, the upper surface coating on diffuse reflection layer has nano silica hydrophobic coating.

Further, the UV reflecting layer is integrally formed by adopting photo-curing UV resin, and a cubic microprism structure is formed at the bottom of the photo-curing UV resin.

Further, the temperature change range of the thermochromic layer is-10 ℃ to 70 ℃.

Furthermore, the self-light-storage layer is formed by coating fluorescent materials.

Furthermore, an adhesive layer is arranged at the bottom of the self-light-storage layer, and the adhesive layer is made of an epoxy resin material.

Further, a release layer is arranged at the bottom of the adhesive layer.

Further, the release layer is release paper or release film.

In summary, the beneficial effects of the utility model are as follows: the self-light-storage layer provides light for the UV reflecting layer, so that the self-light-storage layer has a self-luminous function at night, and the warning distance of the reflecting film serving as a traffic sign is prolonged; the temperature sensing color-changing layer enables the reflective film to be different in color at different temperatures, and has a certain reminding and warning effect; the concave-convex surface structure of the diffuse reflection layer enables reflected light to be softer; the nano silicon dioxide hydrophobic coating has the advantages of being hydrophobic and high in oleophobicity, playing a role in water resistance and pollution resistance, and in rainy days, rainwater drops on the reflective film, water drops can take away dust on the reflective film, and a self-cleaning effect is achieved; the epoxy resin has better heat resistance, and the prepared adhesive is less affected by temperature and is not easy to fall off.

Drawings

FIG. 1 is a schematic diagram of a self-accumulating retroreflective sheeting of the present utility model.

Fig. 2 is a partial enlarged view of a portion a of fig. 1.

Reference numerals illustrate:

1. a nano-silica hydrophobic coating; 2. a diffuse reflection layer; 21. a concave-convex surface; 3. a thermochromic layer; 4. a UV light reflecting layer; 41. a cubic microprism structure; 5. a self-light-storage layer; 6. an adhesive layer; 7. and (5) a release layer.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-2, the embodiment provides a self-light-storage reflective film, which comprises a nano silicon dioxide hydrophobic coating 1, a diffuse reflection layer 2, a thermochromic layer 3, a UV reflective layer 4, a self-light-storage layer 5, an adhesive layer 6 and a release layer 7 which are sequentially arranged from top to bottom.

In the embodiment, the upper and lower surfaces of the UV reflecting layer 4 are respectively coated with reversible thermochromic powder and fluorescent powder to form a thermochromic layer 3 and a self-light-accumulating layer 5, then the diffuse reflecting layer 2 and the UV reflecting layer 4 are laminated and compositely formed, the diffuse reflecting layer 2 is made of a PVC film, the PVC film is provided with a concave-convex surface 21, the PVC film has good light transmission effect, and the surface of the PVC film is provided with a frosted concave-convex surface 21, so that reflected light is softer; the nano silicon dioxide hydrophobic coating 1 is coated on the upper surface of the diffuse reflection layer 2, the nano silicon dioxide material is hydrophobic and oleophobic, the waterproof and antifouling effects are achieved, in rainy days, rainwater drops on the reflective film, water drops can take away dust on the reflective film, and the self-cleaning effect is achieved.

In this embodiment, the UV reflecting layer 4 is integrally formed by using a photo-curing UV resin, and the bottom of the photo-curing UV resin is formed with a cubic micro-prism structure 41, and light is reflected by the cubic micro-prism structure 41.

In this embodiment, the thermochromic layer 3 is made of a reversible thermochromic film, specifically, a reversible thermochromic powder is mixed with a film forming additive, a dispersing agent and a thickening agent according to a certain proportion to make a reversible thermochromic slurry, and finally the slurry is sprayed on the upper surface of the UV reflective layer 4 to form the reversible thermochromic film, so that the reflective film can present different colors at different temperatures, and has a certain reminding and warning effect, and the specific component proportion and the manufacturing process of the reversible thermochromic film are the prior art and are not repeated herein; the temperature change range of the thermochromic layer 3 is-10 ℃, 30 ℃ or 70 ℃, and in other embodiments, the temperature change range is selected according to requirements.

In this embodiment, the self-light-storage layer 5 is coated with a fluorescent material, specifically, a fluorescent powder, which stores light in daytime and emits light at night, so as to provide light for the UV reflective layer 4 and make it have a self-luminous function at night.

In this embodiment, an adhesive layer 6 is adhered to the bottom of the self-light-storage layer 5, the adhesive layer 6 is made of an epoxy resin material, a release layer 7 is disposed on the bottom of the adhesive layer 6, and the release layer 7 is release paper or a release film. When the adhesive is used, the release layer 7 is torn off, the reflective film is fixed on the sign board through the adhesive layer 6, the epoxy resin has good heat resistance, and the prepared adhesive is little affected by temperature and is not easy to fall off.

Working principle: according to the utility model, the upper and lower surfaces of the UV reflecting layer 4 are respectively coated with reversible thermochromic powder and fluorescent powder to form the thermochromic layer 3 and the self-light-storage layer 5, and the self-light-storage layer 5 provides light for the UV reflecting layer 4, so that the UV reflecting layer has a self-luminous function at night; the thermochromic layer 3 enables the reflective film to be different in color at different temperatures, and has a certain reminding and warning effect; the diffuse reflection layer 2 makes the reflected light softer; the nano silicon dioxide hydrophobic coating 1 has the advantages of being high in hydrophobicity and oleophobicity, waterproof and antifouling, and in rainy days, rainwater drops on the reflective film, and water drops can take away dust on the reflective film, so that a self-cleaning effect is achieved. When the adhesive is used, the release layer 7 is torn off, the reflective film is fixed on the sign board through the adhesive layer 6, the epoxy resin has good heat resistance, and the prepared adhesive is little affected by temperature and is not easy to fall off.

While the foregoing embodiments have shown and described the fundamental principles and main features of the utility model as well as the advantages thereof, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, but rather by the description of the embodiments and descriptions, various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims

1. The utility model provides a from holding light reflective membrane, its characterized in that, includes diffuse reflection layer, temperature sensing discolour layer, UV reflector layer and from holding light layer that from last to setting gradually down, temperature sensing discolour layer adopts reversible temperature sensing discolour film to make, diffuse reflection layer adopts the PVC membrane to make, be equipped with the concave-convex surface on the PVC membrane, the upper surface coating on diffuse reflection layer has the hydrophobic coating of nano silica.

2. The self-accumulating light reflecting film according to claim 1, wherein the UV light reflecting layer is integrally formed by using a photo-curing UV resin, and a cubic micro prism structure is formed at the bottom of the photo-curing UV resin.

3. The self-light-accumulating reflecting film according to claim 1, wherein the temperature change range of the thermochromic layer is-10 ℃ to 70 ℃.

4. The self-light-accumulating reflective film according to claim 1, wherein the self-light-accumulating layer is coated with a fluorescent material.

5. The self-light-accumulating reflecting film according to claim 1, wherein an adhesive layer is arranged at the bottom of the self-light-accumulating layer, and the adhesive layer is made of an epoxy resin material.

6. The self-accumulating light reflecting film according to claim 5, wherein a release layer is arranged at the bottom of the adhesive layer.

7. The self-retaining retroreflective sheeting of claim 6 wherein the release layer is release paper or release film.