CN216387446U

CN216387446U - Reflective film

Info

Publication number: CN216387446U
Application number: CN202123453266.6U
Authority: CN
Inventors: 徐君东; 郭仁刚; 章明能
Original assignee: Yeshili New Materials Xianju Co ltd
Current assignee: Yeshili New Materials Xianju Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-26
Anticipated expiration: 2031-12-31

Abstract

The utility model belongs to the technical field of reflective materials, and particularly relates to a reflective film which comprises a surface layer, a bead distribution layer, a focusing layer, an aluminum-plated layer and a pressure-sensitive adhesive layer which are sequentially arranged from top to bottom, wherein glass beads are arranged between the bead distribution layer and the focusing layer, the glass beads are tiled and arranged, the glass beads comprise first glass beads and second glass beads, the diameter of each first glass bead is larger than that of each second glass bead, the second glass beads are arranged between the adjacent first glass beads, the thickness of the focusing layer below each first glass bead is 1/4 of the radius of each first glass bead, the thickness of the focusing layer below each second glass bead is 1/2 of the radius of each second glass bead, and the surface layer is a PMMA layer; according to the utility model, the glass beads with different diameters and refractive indexes are arranged alternately, and the thickness of the focusing layer under the corresponding glass beads is combined, so that different refraction angles can be formed, the reflection can be seen from the front direction and the side direction, the wide angle is good, and the use safety is improved.

Description

Reflective film

The technical field is as follows:

the utility model belongs to the technical field of reflective materials, and particularly relates to a reflective film.

Background art:

retroreflective sheeting is a retroreflective material that has been made into films for direct use, and is also the most widely used retroreflective material. Most of the existing reflective films take PMM or PVC as a surface layer, and glass micro-bead reflective pressure-sensitive reflective materials after metal coating. When the reflective material is used, the incident light is reflected back by utilizing the reflective property of the reflective material, so that the reflective material is widely applied to the fields of traffic, fire fighting, railways and the like, and the existence of a wearer is highlighted through the reflective property of the reflective material so as to improve the safety.

Because the sizes of the glass beads of the existing reflective film are the same, the reflective film only has a reflective effect from one angle and has poor wide angle.

The utility model content is as follows:

the utility model aims to provide a reflective film with good wide angle.

The utility model is realized by the following steps:

the utility model provides a reflective membrane, includes surface course, cloth pearl layer, the layer of focusing, aluminizing layer and pressure sensitive adhesive layer that from top to bottom set gradually, be provided with the glass microballon between cloth pearl layer, the focusing layer, the glass microballon tiling sets up, the glass microballon includes first glass microballon, second glass microballon, the diameter of first glass microballon is greater than the diameter of second glass microballon, is provided with second glass microballon between adjacent first glass microballon, the thickness of the layer of focusing below of first glass microballon is the radial 1/4 of first glass microballon, the thickness of the layer of focusing below of second glass microballon is the radial 1/2 of second glass microballon, the surface course is the PMMA layer.

In the reflective film, the release paper is arranged on the bottom surface of the pressure-sensitive adhesive layer.

In the above reflective film, the number of the first glass beads and the second glass beads is 1: 1 or 1: 3.

in the above light reflecting film, the diameter of the first glass beads is 75 μm to 85 μm, and the diameter of the second glass beads is 45 μm to 55 μm.

In the reflective film, the refractive index of the first glass beads is 2.0-2.2, and the refractive index of the second glass beads is 1.9-1.95.

In the reflective film, the thickness of the surface layer is 40 to 60 μm.

In the above-mentioned one of the light reflecting films, the thickness of the bead layer is 26 μm to 30 μm.

In the reflective film, the thickness of the pressure-sensitive adhesive layer is 40 to 60 μm.

Compared with the prior art, the utility model has the outstanding advantages that:

according to the utility model, the glass beads with different diameters and refractive indexes are arranged alternately, and the thickness of the focusing layer under the corresponding glass beads is combined, so that different refraction angles can be formed, the reflection can be seen from the front direction and the side direction, the wide angle is good, the use safety is improved, a reflection film does not need to be arranged at different angles, and the cost is reduced.

Description of the drawings:

figure 1 is a diagrammatic, schematic cross-sectional view of the present invention.

In the figure: 1. a surface layer; 2. a layer of cloth beads; 3. a focusing layer; 4. plating an aluminum layer; 5. a pressure sensitive adhesive layer; 6. a first glass bead; 7. a second glass bead; 8. and (4) release paper.

The specific implementation mode is as follows:

the utility model is further described below in specific embodiments, with reference to fig. 1:

the utility model provides a reflective membrane, which comprises a surface layer 1, a cloth bead layer 2, a focusing layer 3, an aluminum coating layer 4 and a pressure-sensitive adhesive layer 5 which are arranged from top to bottom in sequence, the surface layer 1 is a PMMA (polymethyl methacrylate) layer, the bead layer 2 is made of acrylic resin material, glass beads are arranged between the bead distribution layer 2 and the focusing layer 3 and are tiled, the glass beads comprise first glass beads 6 and second glass beads 7, the diameter of the first glass beads 6 is larger than that of the second glass beads 7, second glass beads 7 are disposed between adjacent first glass beads 6, the thickness of the focusing layer 3 below the first glass beads 6 is 1/4 times the radius of the first glass beads 6, the thickness of the focusing layer 3 under the second glass particles 7 was 1/2 times the radius of the second glass particles 6. The bottoms of the focusing layers 3 are on the same horizontal plane. The refractive index of the first glass beads 6 is 2.0-2.2, and in the embodiment, the refractive index of the first glass beads 6 is preferably 2.2. The refractive index of the second glass beads 7 is 1.9-1.95, and in the embodiment, the refractive index of the second glass beads 7 is preferably 1.93.

According to the utility model, the glass beads with different diameters and refractive indexes are arranged alternately, and the thickness of the focusing layer 3 below the corresponding glass beads is combined, so that the effect of improving the wide angle is achieved. That is to say, can form different refraction angles, can see the reflection of light from forward, side direction, wide angle nature is good, need not to set up the reflective membrane at different angles, the cost is reduced.

Because the pressure-sensitive adhesive layer 5 has certain viscosity, when the pressure-sensitive adhesive layer is not used, the release paper 8 is arranged on the bottom surface of the pressure-sensitive adhesive layer 5. When pasting, the release paper 8 is torn off.

According to the practical use condition, the number of the first glass bead 6 and the second glass bead 7 is 1: 1 or 1: 3. FIG. 1 shows a graph of 1: 1.

specifically, the diameter of the first glass beads 6 is 75 to 85 μm, and the diameter of the second glass beads 7 is 45 to 55 μm. The thickness of the surface layer 1 is 40-60 μm. The thickness of the cloth bead layer 2 is 26-30 μm. The thickness of the pressure-sensitive adhesive layer 5 is 40-60 μm. The values of the utility model can be arbitrarily valued in the corresponding value range.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. A retroreflective sheeting, comprising: comprises a surface layer (1), a cloth bead layer (2), a focusing layer (3), an aluminum coating layer (4) and a pressure sensitive adhesive layer (5) which are arranged from top to bottom in sequence, glass beads are arranged between the bead distribution layer (2) and the focusing layer (3) and are laid flat, the glass beads comprise first glass beads (6) and second glass beads (7), the diameter of the first glass bead (6) is larger than that of the second glass bead (7), second glass beads (7) are arranged between the adjacent first glass beads (6), the thickness of the focusing layer (3) below the first glass bead (6) is 1/4 of the radius of the first glass bead (6), the thickness of the focusing layer (3) below the second glass beads (7) is 1/2 of the radius of the second glass beads (7), and the surface layer (1) is a PMMA layer.

2. A retroreflective sheeting according to claim 1, wherein: the bottom surface of the pressure sensitive adhesive layer (5) is provided with release paper (8).

3. A retroreflective sheeting according to claim 1 or 2, wherein: the number of the first glass beads (6) and the second glass beads (7) is 1: 1 or 1: 3.

4. a retroreflective sheeting according to claim 1 or 2, wherein: the diameter of the first glass bead (6) is 75-85 μm, and the diameter of the second glass bead (7) is 45-55 μm.

5. A retroreflective sheeting according to claim 1 or 2, wherein: the refractive index of the first glass beads (6) is 2.0-2.2, and the refractive index of the second glass beads (7) is 1.9-1.95.

6. A retroreflective sheeting according to claim 1 or 2, wherein: the thickness of the surface layer (1) is 40-60 mu m.

7. A retroreflective sheeting according to claim 1 or 2, wherein: the thickness of the bead layer (2) is 26-30 μm.

8. A retroreflective sheeting according to claim 1 or 2, wherein: the thickness of the pressure-sensitive adhesive layer (5) is 40-60 mu m.