CN109188584B

CN109188584B - Reflective film

Info

Publication number: CN109188584B
Application number: CN201811084073.8A
Authority: CN
Inventors: 戴伟
Original assignee: Hefei Tonglu Optical Technology Co ltd
Current assignee: Anhui Yishi Reflective Materials Co.,Ltd.
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2020-12-01
Anticipated expiration: 2038-09-17
Also published as: CN109188584A

Abstract

The invention provides a reflective film, wherein the upper surface of a base layer is covered with a first reflective layer, the upper surface of the base layer is covered with a fluorescent layer, the upper surface of the base layer is provided with a plurality of light guide dam bodies protruding upwards, and glass beads are embedded in the light guide dam bodies; a cavity is formed between adjacent light guide dam bodies; the two sides of the cavity are provided with a first inclined plane and a second inclined plane which are opposite, and the upper ends of the first inclined plane and the second inclined plane incline towards the sides of the adjacent light guide dam bodies respectively; a second reflecting layer is arranged on the first inclined plane, and a third reflecting layer is arranged on the second inclined plane; the fluorescent layer below the cavity is provided with a light guide part which is convex upwards; a waterproof layer is arranged above the plurality of light guide dam bodies, and the upper surfaces of the waterproof layer and the light guide dam bodies are covered with diffuse reflection layers; the lower surface of the base layer is covered with a pressure-sensitive adhesive layer, and the lower surface of the base layer is covered with a release paper layer. The invention can still provide indication when the light is dim and the vehicle is not on.

Description

Reflective film

Technical Field

The invention relates to the technical field of reflective materials, in particular to a reflective film.

Background

The reflective film is mainly used for guide boards, indication boards, contour marks, protruded road signs, traffic cones, anti-collision barrels, safety islands, safety boards of mine airports, place name boards, license plates, safety marks of property districts, construction marks, advertising boards, stage scenery, trademarks and the like of various highways and railways. Because the reflective film plays an obvious warning role in the daytime by virtue of the bright color, the bright reflective effect can effectively enhance the recognition capability of people at night or under the condition of insufficient light, and the objects can be seen clearly to cause alertness, thereby avoiding accidents, reducing casualties and economic loss, becoming an indispensable safety guard for road traffic and having obvious social benefits.

Although the existing reflective film can play a role in reflecting light, the structural design is unreasonable, and a striking prompt role can be played only under strong light, so that the light reflecting effect is not obvious under the dim condition, and particularly, the traditional reflective film cannot play any role at all under the condition that a vehicle lamp is broken, so that safety accidents can be caused, and the personal safety of travel personnel is harmed.

Disclosure of Invention

The invention provides a reflective film, which solves the problem that the reflective film in the prior art cannot play a warning role when light is dim.

The technical scheme of the invention is realized as follows:

a reflective film comprises a base layer, wherein a first reflective layer covers the upper surface of the base layer, a fluorescent layer covers the upper surface of the first reflective layer, a plurality of light guide dam bodies protruding upwards are arranged on the upper surface of the fluorescent layer, the light guide dam bodies are strip-shaped, and the light guide dam bodies are parallel to each other; glass beads are embedded in the light guide dam body;

a cavity is formed between adjacent light guide dam bodies, and the cavity is in a strip shape with the same length as the light guide dam bodies;

the two sides of the cavity are provided with a first inclined plane and a second inclined plane which are opposite, and the first inclined plane and the second inclined plane extend along the length direction of the cavity; the upper ends of the first inclined plane and the second inclined plane are respectively inclined towards the adjacent light guide dam body sides;

a second reflecting layer is arranged on the first inclined surface, and a third reflecting layer is arranged on the second inclined surface;

the fluorescent layer below the cavity is provided with a light guide part protruding upwards, and the light guide part is accommodated in the cavity;

a waterproof layer is arranged above the plurality of light guide dam bodies, and a diffuse reflection layer covers the upper surface of the waterproof layer;

the lower surface of basic unit covers there is pressure sensitive adhesive layer, pressure sensitive adhesive layer's lower surface covers there is antiseized ply.

Further, the basic unit is including the anti-tear layer and the insulating layer that set gradually from top to bottom, connect through the adhesion layer between anti-tear layer and the insulating layer.

Furthermore, the anti-tear layer is formed by weaving polyacrylonitrile preoxidized fiber and silicon carbide fiber, and the insulating layer is an alumina ceramic coating.

Further, the first reflective layer, the second reflective layer and the third reflective layer are aluminum-plated material layers or platinum-plated material layers.

Further, the fluorescent layer is formed by solidifying light guide resin mixed with fluorescent powder.

Further, the light guide dam body and the light guide part are made of light guide grade resin.

Furthermore, the light guide dam body and the light guide part are integrated with the fluorescent layer.

Further, the surface of the diffuse reflection layer has a corrugated concave-convex structure.

The invention has the beneficial effects that:

the invention has simple structure design and convenient use; the light of the vehicle irradiates on the invention, one part of the light is directly reflected by the second reflecting layer, the third reflecting layer and the glass beads, and the other part of the light reaches the first reflecting layer through the light guide dam body and the fluorescent layer, is reflected by the first reflecting layer and provides warning for a driver at night; when the vehicle is not lighted, the fluorescent layer automatically emits light, one part of the fluorescent layer is directly led out through the light guide dam body, the other part of the fluorescent layer is led out through the light guide part, and the second reflecting layer and the third reflecting layer reflect the light of the light guide part, so that the light extraction rate is improved; the diffuse reflection layer can refract the light emitted from the inner side of the reflective film and diffuse reflect the externally-incident light, so that light pollution is avoided. The invention can still provide indication when the light is dim and the vehicle is not on.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic block diagram of one embodiment of the present invention;

fig. 2 is a schematic structural diagram of a base layer according to an embodiment of the present invention.

Wherein:

1. a base layer; 2. a tear resistant layer; 3. an insulating layer; 4. an adhesion layer; 5. a first light-reflecting layer; 6. a fluorescent layer; 7. a light guide dam body; 8. glass beads; 9. a cavity; 10. a first inclined plane; 11. a second inclined plane; 12. a second light-reflecting layer; 13. a third light-reflecting layer; 14. a light guide part; 15. a waterproof layer; 16. a diffuse reflective layer; 17. a pressure sensitive adhesive layer; 18. and a release paper layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the reflective film in this embodiment includes a base layer 1, in this embodiment, the base layer 1 includes an anti-tear layer 2 and an insulating layer 3, which are sequentially disposed from top to bottom, and the anti-tear layer 2 and the insulating layer 3 are connected by an adhesion layer 4. The anti-tearing layer 2 is formed by weaving polyacrylonitrile preoxidized fiber and silicon carbide fiber, and the polyacrylonitrile preoxidized fiber and the silicon carbide fiber have strong structural strength and can prevent the reflective film from being torn under stress; the insulating layer 3 is an alumina ceramic coating, has good insulating property and prevents electric shock hazard. The upper surface of the base layer 1 is covered with a first light reflecting layer 5, the upper surface of the first light reflecting layer 5 is covered with a fluorescent layer 6, the upper surface of the fluorescent layer 6 is provided with a plurality of light guide dam bodies 7 protruding upwards, the light guide dam bodies 7 are strip-shaped, and the light guide dam bodies 7 are parallel to each other; and glass beads 8 are embedded in the light guide dam body 7.

A cavity 9 is formed between the adjacent light guide dam bodies 7, and the cavity 9 is in a strip shape with the same length as the light guide dam bodies 7; two sides of the cavity 9 are provided with a first inclined surface 10 and a second inclined surface 11 which are opposite, and the first inclined surface 10 and the second inclined surface 11 extend along the length direction of the cavity 9; the upper ends of the first inclined plane 10 and the second inclined plane 11 are respectively inclined towards the adjacent light guide dam body 7 side; a second reflective layer 12 is arranged on the first inclined surface 10, and a third reflective layer 13 is arranged on the second inclined surface 11; the fluorescent layer 6 below the cavity 9 is provided with a light guide portion 14 protruding upwards, and the light guide portion 14 is accommodated in the cavity 9.

A waterproof layer 15 is arranged above the plurality of light guide dam bodies 7, and a diffuse reflection layer 16 covers the upper surface of the waterproof layer 15. In this embodiment, the surface of the diffuse reflection layer 16 has a corrugated concave-convex structure.

The lower surface of the base layer 1 is covered with the pressure-sensitive adhesive layer 17, so that the adhesive is good in thermal stability, environment-friendly, safe and good in bonding effect, and has the characteristics of water resistance and water resistance. The lower surface of the pressure-sensitive adhesive layer 17 is covered with a release paper layer 18.

In this embodiment, the first reflective layer 5, the second reflective layer 12, and the third reflective layer 13 are aluminum-plated material layers, or platinum-plated material layers, which can increase the reflective effect of the reflective film and make the surface of the reflective film have metallic luster.

In this embodiment, the fluorescent layer 6 is formed by mixing light guide-grade resin with fluorescent powder and solidifying. The fluorescent powder absorbs light energy in the daytime and automatically emits light at night. The light guide dam body 7 and the light guide part 14 are made of light guide grade resin, and the light guide dam body 7 and the light guide part 14 are integrated with the fluorescent layer 6 to facilitate light conduction.

When the light guide dam works, light of a vehicle irradiates the light guide dam, one part of the light is directly reflected by the second reflecting layer 12, the third reflecting layer 13 and the glass beads 8, and the other part of the light reaches the first reflecting layer 5 through the light guide dam 7 and the fluorescent layer 6, is reflected by the first reflecting layer 5, and provides warning for a driver at night; when the vehicle is not lighted, the fluorescent layer 6 automatically emits light, one part of the fluorescent layer is directly led out through the light guide dam body 7, the other part of the fluorescent layer is led out through the light guide part 14, and the second reflecting layer and the third reflecting layer reflect the light of the light guide part 14, so that the light extraction rate is improved; the diffuse reflection layer 16 can refract the light emitted from the inner side of the reflective film and diffuse reflect the externally incident light, thereby avoiding light pollution. The embodiment can still provide indication when the light is dim and the vehicle is not on.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A reflective film is characterized by comprising a base layer, wherein a first reflective layer covers the upper surface of the base layer, a fluorescent layer covers the upper surface of the first reflective layer, a plurality of light guide dams protruding upwards are arranged on the upper surface of the fluorescent layer, the light guide dams are strip-shaped, and the light guide dams are parallel to one another; glass beads are embedded in the light guide dam body;

the lower surface of the base layer is covered with a pressure-sensitive adhesive layer, and the lower surface of the pressure-sensitive adhesive layer is covered with an anti-sticking paper layer;

the basic unit is including the anti-tear layer and the insulating layer that from top to bottom set gradually, connect through the adhesion layer between anti-tear layer and the insulating layer.

2. The retroreflective sheeting of claim 1 wherein said tear resistant layer is woven from polyacrylonitrile pre-oxidized fibers and silicon carbide fibers, and said insulating layer is an alumina ceramic coating.

3. The reflective film of claim 2, wherein the first, second and third reflective layers are aluminum-plated or platinum-plated.

4. The retroreflective sheeting of claim 3 wherein said phosphor layer is cured from a light-guide-grade resin mixed with phosphor.

5. The reflective film of claim 4, wherein the light guide dam and the light guide portion are made of light guide grade resin.

6. The retroreflective sheeting of claim 5 wherein said light directing dam and said light directing portion are integrally formed with said phosphor layer.

7. The retroreflective sheeting of claim 6 wherein the surface of said diffusing layer has a corrugated relief structure.