Reflective film

Abstract

The utility model provides a reflective film, and belongs to the technical field of reflective materials. The problem that in the prior art, the production efficiency of the reflective film is low is solved. The reflective film comprises a base material layer, a reflective layer and a pressure-sensitive adhesive layer which are sequentially arranged from top to bottom, the reflective layer comprises a reflective ink layer and an aluminized layer which are arranged up and down, the reflective ink layer is adhered to the base material layer, the aluminized layer is plated on the reflective ink layer, the pressure-sensitive adhesive layer is adhered to the aluminized layer, and the pressure-sensitive adhesive layer is coated on the aluminized layer. And a plurality of glass beads are distributed in the reflective ink layer. The reflective film has the advantages that the production efficiency of the reflective film is improved while the good reflective characteristic of the reflective film is kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of reflective materials and relates to a reflective film. Background Art

[0002] Currently, reflective sheeting is a retroreflective material that can be directly applied as a thin film. In the prior art, glass beads are first coated on a substrate to form a beaded adhesive layer, and then ink is applied to the beaded adhesive layer to achieve the reflective effect of the reflective sheeting. However, during the coating process, the glass beads may wear and break, resulting in the occurrence of beads, overlapping beads, and floating beads during the coating process, which affects the properties of the reflective sheeting. Therefore, workers must be extremely careful and cautious during the coating process, which makes the ink application process time-consuming and labor-intensive, resulting in low production efficiency of the reflective sheeting. Summary of the Invention

[0003] The purpose of this utility model is to solve the above problems in the existing technology and to propose a reflective film. The technical problem to be solved by this utility model is how to improve the production efficiency of the reflective film while maintaining its good reflective properties.

[0004] The purpose of this utility model can be achieved through the following technical solutions:

[0005] A reflective film comprises a base material layer, a reflective layer and a pressure-sensitive adhesive layer arranged in sequence from top to bottom, characterized in that the reflective layer comprises a reflective ink layer and an aluminum-plated layer arranged one above the other, the reflective ink layer adheres to the base material layer, the aluminum-plated layer is plated on the reflective ink layer, the pressure-sensitive adhesive layer adheres to the aluminum-plated layer, and a plurality of glass beads are distributed in the reflective ink layer.

[0006] The reflective layer of the reflective sheeting includes a reflective ink layer and an aluminum-plated layer arranged above and below. The aluminum-plated layer plays a reflective role. At the same time, a reflective ink layer is arranged between the base material layer and the aluminum-plated layer, and glass beads are directly arranged in the reflective ink layer. The physical structure of the glass beads has a high refractive index, so that the reflective ink layer has retro-reflective properties. The traditional processes of setting glass beads and applying ink are combined into one step, thereby shortening the production process of the reflective sheeting and avoiding the wear and breakage of glass beads in the traditional ink coating process. Therefore, the production efficiency of the reflective sheeting is improved while maintaining the good reflective properties of the reflective sheeting.

[0007] In the above-mentioned reflective film, a primer layer is adhered between the substrate layer and the reflective ink layer. The primer layer can enhance the adhesion strength between the substrate layer and the reflective ink layer.

[0008] In the above-mentioned reflective film, the substrate layer is provided on the upper side of the reflective ink layer in a removable manner, so that the user can choose to remove the substrate layer according to the use requirements.

[0009] In the reflective sheeting described above, the substrate layer is made of PET or PVC. The substrate layer made of PET or PVC has high transparency, good toughness and strength, good UV resistance, can withstand high temperatures, has excellent wear resistance and corrosion resistance, and is not easily corroded by chemical substances.

[0010] In the above-mentioned reflective film, the thickness of the reflective ink layer is 90 μm-150 μm, which can better arrange glass beads in the reflective ink layer and make the thickness of the reflective film more reasonable.

[0011] In the above-mentioned reflective film, the thickness of the substrate layer is 50 μm-100 μm, which makes the thickness of the substrate layer more reasonable.

[0012] In the above-mentioned reflective film, the thickness of the aluminum coating layer is 0.02 μm-1 μm, which makes the thickness of the aluminum coating layer more reasonable.

[0013] In the above-mentioned reflective film, the thickness of the pressure-sensitive adhesive layer is 29 μm-31 μm, which makes the thickness of the pressure-sensitive adhesive layer more reasonable.

[0014] In the above-mentioned reflective film, the refractive index of the glass beads is 1.9-1.95, so that the incident light can be well focused on the rear surface of the glass beads, thereby achieving the best retro-reflective effect of the reflective film.

[0015] In the above-mentioned reflective film, a release paper is provided on the bottom surface of the pressure-sensitive adhesive layer, and the release paper can protect the reflective film.

[0016] Compared with the existing technology, the advantages of this reflective sheeting are as follows: the reflective layer of this reflective sheeting includes a reflective ink layer and an aluminum-plated layer arranged above and below. The aluminum-plated layer plays a reflective role. At the same time, a reflective ink layer is arranged between the base material layer and the aluminum-plated layer, and glass beads are directly arranged in the reflective ink layer. The physical structure of the glass beads has a high refractive index, which makes the reflective ink layer have retro-reflective properties. The traditional process of setting glass beads and applying ink is combined into one step, thereby shortening the production process of the reflective sheeting and avoiding the wear and breakage of glass beads during the traditional ink application process. Therefore, the production efficiency of the reflective sheeting is improved while maintaining the good reflective properties of the reflective sheeting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional view of the reflective film.

[0018] In the figure, 1, substrate layer; 2, reflective layer; 2a, reflective ink layer; 2b, aluminum plating layer; 3, primer layer; 4, pressure-sensitive adhesive layer; 5, glass beads; 6, release paper. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] Example 1

[0021] A reflective film comprises a substrate layer 1, a reflective layer 2, and a pressure-sensitive adhesive layer 4 arranged in sequence from top to bottom. The reflective layer 2 comprises a reflective ink layer 2a and an aluminum-plated layer 2b arranged above and below. The reflective ink layer 2a is adhered to the substrate layer 1, the aluminum-plated layer 2b is plated on the reflective ink layer 2a, the pressure-sensitive adhesive layer 4 is adhered to the aluminum-plated layer 2b, and a plurality of glass beads 5 are distributed in the reflective ink layer 2a.

[0022] Further, refer to Figure 1 A primer layer 3 is adhered between the substrate layer 1 and the reflective ink layer 2a.

[0023] In this embodiment, the bottom surface of the pressure-sensitive adhesive layer 4 is preferably provided with a release paper 6; the substrate layer 1 is preferably made of PET material or PVC material; the thickness of the reflective ink layer 2a is preferably 90 μm-150 μm; the thickness of the substrate layer 1 is 50 μm-100 μm, and preferably the thickness of the substrate layer 1 is 50 μm, 75 μm or 100 μm; the thickness of the aluminum-plated layer 2b is preferably 0.02 μm-1 μm; the thickness of the pressure-sensitive adhesive layer 4 is 29 μm-31 μm, and preferably the thickness of the pressure-sensitive adhesive layer 4 is 30 μm; the refractive index of the glass beads 5 is preferably 1.9-1.95.

[0024] The base coating layer 3 of the reflective film serves to enhance the adhesion between the substrate layer 1 and the reflective ink layer 2a. The release paper 6 serves as a barrier and protection layer and needs to be removed during use. The aluminum-plated layer 2b serves as a reflector. The substrate layer 1, made of PET or PVC, has high transparency, good toughness and strength, good UV resistance, can withstand high temperatures, has excellent wear resistance and corrosion resistance, and is not easily corroded by chemical substances. The pressure-sensitive adhesive layer 4 greatly improves the adhesion of the reflective film and makes it suitable for use in high-temperature, low-temperature, and humid environments, ensuring its stability and durability under various conditions.

[0025] The reflective layer 2 of the reflective sheeting includes a reflective ink layer 2a and an aluminum-plated layer 2b disposed one above the other. The aluminum-plated layer 2b serves a reflective function. The reflective ink layer 2a is disposed between the substrate layer 1 and the aluminum-plated layer 2b, and glass beads 5 are disposed directly within the reflective ink layer 2a. Utilizing the high refractive index physical structure of the glass beads 5, the reflective ink layer 2a has retro-reflective properties. Furthermore, the conventional processes of disposing the glass beads and applying the ink are combined into one step, thereby shortening the production process of the reflective sheeting and avoiding the wear and breakage of the glass beads during the conventional ink application process. This improves the production efficiency of the reflective sheeting while maintaining its good reflective properties.

[0026] Example 2

[0027] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that the substrate layer 1 is disposed on the upper side of the reflective ink layer 2a in a releasable manner.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A reflective film comprising a substrate layer (1), a reflective layer (2) and a pressure-sensitive adhesive layer (4) arranged in order from top to bottom, characterized in that: The reflective layer (2) comprises a reflective ink layer (2a) and an aluminum-plated layer (2b) arranged above and below, the reflective ink layer (2a) adheres to the substrate layer (1), the aluminum-plated layer (2b) is plated on the reflective ink layer (2a), the pressure-sensitive adhesive layer (4) adheres to the aluminum-plated layer (2b), and a plurality of glass microbeads (5) are distributed in the reflective ink layer (2a).

2. The reflective film according to claim 1, characterized in that: A primer layer (3) is adhered between the substrate layer (1) and the reflective ink layer (2a).

3. The reflective film according to claim 1, characterized in that: The substrate layer (1) is arranged on the upper side of the reflective ink layer (2a) in a releasable manner.

4. The reflective film according to claim 1, characterized in that: The substrate layer (1) is made of PET material or PVC material.

5. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The thickness of the reflective ink layer (2a) is 90 μm-150 μm.

6. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The thickness of the substrate layer (1) is 50 μm-100 μm.

7. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The thickness of the aluminum plating layer (2b) is 0.02 μm-1 μm.

8. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The thickness of the pressure-sensitive adhesive layer (4) is 29 μm-31 μm.

9. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The refractive index of the glass microspheres (5) is 1.9-1.

95.

10. A reflective film according to claim 1, 2, 3 or 4, characterized in that: The bottom surface of the pressure-sensitive adhesive layer (4) is provided with release paper (6).

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