CN201084354Y - High-brightness luminous, light-reflecting signboard - Google Patents

Abstract

The utility model relates to a high brightness signboard that is luminous and reflective, comprising a base board (1) and the multi-film on the base board. The improvements are that: a bottom color layer (2), an achromatic reflective layer (3), a white opaque layer (4) and a luminous layer (5) are arranged in the multi-film. The characters or pattern signs are clearer because the reflective layer reflects the light, when the signboard is shone by light at night or in the darkness. The opaque layer and the luminous layer corresponding to the superimposed characters or sign patterns are arranged on the reflective layer in sequence, the luminous brightness of the luminous layer is raised due to the reflective layer and the opaque layer, the luminous loss of the luminous layer is reduced. Rust preventing paint (6) is brushed on the back of the iron base board. The utility model has the advantages of simple and flexible operation, dispensing with special manufacturing equipment, high brightness, long luminous time, long service life, easy maintenance and other excellences.

Description

High-brightness luminous, reflective signage

technical field

The utility model relates to the production of luminous and reflective signboards, which is an improvement on existing instruction or warning signboards, and can be used for making building signs, safety signboards, fireproof signboards, warning signboards and the like.

Background technique

Luminescent materials can absorb and store light energy under the irradiation of visible light such as sunlight or light, and slowly release the absorbed energy in the form of visible light in the dark after the light stops. In the past, ZnS-type luminescent materials were used, although they can absorb light and emit light in the absence of light, but their luminous intensity is low, and the required absorption light source is high (generally ultraviolet light is required as the excitation light source), and the luminous time is also very short, only ten After a few minutes, if a small amount of radioactive substances are added, although the luminous time can be prolonged and the brightness can be increased, it has certain radioactivity and is harmful to the human body. At the same time, its chemical properties are also unstable, which brings many inconveniences to actual production and application.

The rare earth industry and the application of rare earths are a new industry that rose rapidly in the 1960s along with the trend of new technologies in the world. Rare earths and their products have been widely used in every field of our lives. SrAl ₂ O ₄ :Eu ²⁺ doped with rare earth elements in the strontium aluminate system, Dy ³⁺ is a new light-storage luminescent material developed in the 1990s. The outstanding feature of this material is that the luminous intensity and duration are traditional Dozens of times that of ZnS luminescent materials, and the material itself is non-toxic and harmless, does not contain any radioactive elements, has excellent stability and durability, the process of light absorption and luminescence can be repeated, low-level lighting, and good indication function, which brings great benefits to people's life and production. It brings convenience, saves energy and sources, does not pollute the environment, and meets the requirements of the development of a green society. On the basis of literature reports, the laboratory optimized the ratio of each component, developed a SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺ luminescent material with high initial brightness and long afterglow time, and used the material in the development of downstream products.

There are many patents and literature reports about the production method of the luminous signboard, such as: the luminous signboard disclosed in the specification of the publication number CN 1108413A, the surface of the bottom plate is made of a protective layer by electrostatic spraying process, and the word code pattern part is printed with a silk screen After the dry powder is fired at a high temperature of 170-190°C to form a color-shielding layer and a luminescent layer, this process requires special electrostatic spraying equipment, and harmful gases will be produced during the high-temperature firing process to pollute the environment. Part of the Eu ²⁺ in the luminescent layer It is also oxidized to Eu ³⁺ , reducing the number of luminescent ions, which will inevitably affect the luminescence effect of the entire luminescent layer. The long afterglow luminescent signboard introduced in the ZL Patent No. 99229371.5 specification is composed of a substrate, a protective layer, a colored paint layer, a luminescent layer, and a protective film. The luminous intensity of the luminescent layer. The long afterglow luminescent sign introduced by ZL Patent No. 03215004.0 includes a substrate and a multilayer film prepared on the substrate. The corresponding superimposed characters or logos on the luminous layer, and no reflective layer in other places, this kind of long afterglow luminous card has a better luminous effect at night. However, when this structural layout is exposed to light at night, it cannot well highlight the text or pattern signs to be expressed. ZL Patent No. 98243539.8 discloses a reflective signboard, which is connected with a reflector on the luminescent paint layer. Although the purpose of the signboard can be luminous and reflective, this structural design will affect the luminous efficiency of the luminescent layer. The luminescent reflective sign board designed by ZL patent No. 02257587.1 is composed of a substrate, a reflective layer and a luminescent layer. This structural design has a better visual effect at night. The reflective layer used is a reflective film, which requires a good match between the ink used and the reflective film, thus limiting the selectivity of raw materials. At the same time, the color of the luminous layer is determined, which puts forward new requirements for the choice of reflective film, so that the color of the reflective layer can be set off during the day.

To sum up, there are few reports about signboards that can both emit light and reflect light. There are still some defects in the process of making luminous signboards in the past, which will inevitably affect the overall visual effect of the signboard at night and during the day. The utility model The purpose is to improve the existing technology, reduce production costs, simplify the production process, and improve the visual effect of signs.

Contents of the invention

The utility model uses high-brightness luminescent material SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺ to replace the traditional ZnS luminescent material as the luminescent matrix of the luminescent layer, and combines the advantages of screen printing to design a The reflective signboard has simple operation, does not need special equipment and various auxiliary agents, reduces production cost and is easy to realize industrialized production.

The technical scheme of the utility model adopts such a structure: an antirust paint layer is provided on one side of the rectangular iron substrate, and a ground color layer, a colorless reflective layer, a white color-shielding layer, and a luminous layer are sequentially arranged on the other side.

There is a colorless reflective layer on the base color layer.

The luminescent layer is composed of luminescent materials SrAl ₂ O ₄ :Eu ²⁺ , Dy ³ , varnish, and turpentine.

Both the white color-shielding layer and the light-emitting layer are made with text or pattern marks, and the text or pattern marks of the two layers are overprinted correspondingly.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has a simple structure and does not require power consumption.

2. The light-emitting layer of the present invention uses a new type of rare earth long-lasting light-storing material, so the text or pattern layer of the present invention has a strong light-storing ability, and can continue to emit light for more than 10 hours after being irradiated with light for 10-15 minutes.

3. The utility model can not only emit light but also reflect light. The utility model is equipped with a reflective layer in the multi-layer film structure. When the signboard is illuminated by light at night, the reflective layer can reflect light to make the signboard more eye-catching.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Fig. 1 is a structural sectional view of a specific embodiment of the present invention.

Fig. 2 is a schematic plan view of the specific embodiment shown in Fig. 1 .

The serial numbers in Figure 1 are respectively represented as: 1. Rectangular iron substrate, 2. Blue background color layer, 3. Colorless reflective layer, 4. White color-shielding layer, 5. Light-emitting layer, 6. Anti-rust paint layer

Detailed ways

Referring to Fig. 1, luminescence of the present utility model, reflective signboard, have six layers of structure to form: on the rectangular iron substrate (1), be provided with blue background color layer (2); On the blue background color layer (2) A colorless reflective layer (3) is provided; on the colorless reflective layer (3) are a white color-shielding layer (4) and a light-emitting layer (5) in sequence, and these two layers are corresponding overprinted text layers; on the rectangular iron substrate The back side of (1) is provided with antirust paint layer (6).

The manufacturing method of this luminous and reflective signboard is as follows: After degreasing and derusting the iron substrate (1), brush the blue primer layer (2) on one side of the iron substrate (1). Apply a colorless reflective layer (3). Prepare the screen according to the content of the design in Figure 2, make a white reflective text layer (4) on the colorless reflective layer (3), and then overprint the luminous text layer (5) correspondingly, the "student apartment building 15" in Figure 2 is Corresponding to the superimposed text layer, in order to achieve a good luminous effect, the luminous text layer (5) needs to be printed 2 to 3 times to make the thickness not less than 0.5 mm. The light-emitting layer (5) is composed of high-brightness light-emitting materials SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺ , varnish, and turpentine. Finally, an antirust paint layer (6) is brushed on the back side of the iron substrate (1).

Claims (4)

1. A high-brightness luminescent and reflective signboard, characterized in that there is a base color layer (2) on the substrate (1), and a colorless reflective layer (3) and corresponding superimposed characters or patterns are arranged on the base color layer (2) The color shielding layer (4) and the light emitting layer (5) of the sign. 2. The high-brightness luminous and reflective signboard according to claim 1, wherein there is a colorless reflective layer (3) on the entire base color layer (2). 3. The high-brightness light-emitting and reflective signboard according to claim 1, characterized in that: the light-emitting layer (5) is composed of high-brightness light-emitting materials SrAl ₂ O ₄ :Eu ²⁺ , Dy ³⁺ , varnish, and turpentine. 4. The high-brightness luminous and reflective signboard according to claim 1, characterized in that: the iron substrate (1) is provided with an antirust paint layer (6) on its back.

Images