A light box fabric structure

Abstract

The utility model discloses a lamp box cloth structure, including cloth layer and PVC layer, the bottom of PVC layer is equipped with optical diffusion layer, the bottom of optical diffusion layer is equipped with high reflection layer, the upper surface of PVC layer is equipped with self -cleaning coating. The utility model discloses, through set up high reflection layer and optical diffusion layer, the light energy that will lose in the lamp box inside has carried out recycling, if to reach the equivalent brightness of traditional lamp box, then can configure lower power's light source, directly reduced the electric energy consumption, realized energy -conserving and environment -friendly, simultaneously, the even dispersion's silicon dioxide or barium sulfate etc. diffusing particle in optical diffusion layer repeatedly refracts, reflects and scatters with light, break the original direction of light, convert concentrated linear light source or point light source into the surface light source of even emission, make the whole picture brightness even, present high -end, soft, professional visual performance, greatly promoted the grade and visual attraction of advertisement.

Description

Technical Field

[0001] This utility model relates to the field of lightbox fabric technology, and in particular to a lightbox fabric structure. Background Technology

[0002] Lightbox fabric possesses characteristics such as good flexibility, uniform light transmission, long lifespan, ease of segmentation and installation, and good ink adhesion. It is mainly used as an indoor and outdoor material for the production of large-scale advertisements. However, existing lightbox fabrics are affected by different environments, and their simple and singular structure and function greatly reduce their quality and lifespan. To address this, the authorized announcement number CN213704746U discloses "a kind of lightbox fabric". This solution uses a combination of a first stretch layer, a second stretch layer, a third stretch layer, a high-temperature resistant layer, an antistatic layer, a wear-resistant layer, and a high weather-resistant layer to protect the lightbox fabric, thereby greatly improving its quality and service life.

[0003] However, in this solution, the light utilization efficiency inside the lightbox fabric is low, and a large amount of light is absorbed or scattered inside the lightbox, resulting in insufficient light output brightness. To achieve sufficient advertising display brightness, a higher power light source needs to be configured, which causes energy waste. Therefore, a lightbox fabric structure is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a lightbox fabric structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a light box fabric structure, comprising a fabric layer and a PVC layer, wherein an optical diffusion layer is provided at the bottom of the PVC layer, a high reflectivity layer is provided at the bottom of the optical diffusion layer, and a self-cleaning coating is provided on the upper surface of the PVC layer. The high reflectivity layer improves the light efficiency, the optical diffusion layer ensures uniform light output, and the self-cleaning coating reduces surface contamination, thus achieving the core advantages of energy saving, high-quality display, and low maintenance costs.

[0006] The high-reflectivity layer is a white high-reflectivity PET coating. The PET coating has both high reflectivity and environmentally friendly and recyclable characteristics. The white pigment dispersed in it can efficiently reflect light, directly improve brightness and reduce energy consumption.

[0007] The self-cleaning coating is a photocatalytic material layer based on titanium dioxide, or a superhydrophobic and oleophobic material layer with micro-nano structure. The photocatalytic material can achieve self-cleaning by decomposing organic matter, while the superhydrophobic material can achieve self-cleaning by physically repelling water droplets and dust. Both can significantly reduce the adhesion of surface dirt and extend the cleaning cycle.

[0008] An integrated multi-functional coating is provided between the fabric layer and the high-reflectivity layer. This integrated multi-functional coating combines multiple functions such as flame retardancy and anti-aging, simplifies the lamination process, enhances structural stability, and improves the safety and durability of the product.

[0009] The fabric layer is a PET polyester warp-knitted base fabric. PET material is environmentally friendly and recyclable, and the warp-knitted structure gives the base fabric excellent dimensional stability and tear resistance.

[0010] The optical diffusion layer is a semi-transparent polymer layer doped with diffusion particles, which are silicon dioxide or barium sulfate microspheres. The uniformly distributed microspheres allow light to be fully scattered, effectively eliminating lamp tube marks and transforming point and line light sources into uniform surface light sources, achieving a high-end, spotless visual effect.

[0011] The top of the fabric layer is provided with a first micro-groove and a second micro-groove. A first stretching layer is provided in the first micro-groove and a second stretching layer is provided in the second micro-groove. The first stretching layer and the second stretching layer enhance the elasticity of the lightbox fabric and improve its tear resistance and mechanical durability during installation and use.

[0012] This utility model has the following beneficial effects: 1. Compared with existing technologies, this lightbox fabric structure, by setting a high-reflection layer and an optical diffusion layer, allows light emitted from the light source inside the lightbox to be efficiently reflected back by the high-reflection layer, passing through the optical diffusion layer and PVC layer again before being emitted. This recovers and reuses the light energy that would otherwise be lost inside the lightbox. To achieve the same brightness as traditional lightboxes, a lower-power light source can be configured, directly reducing power consumption and achieving energy saving and environmental protection. At the same time, the uniformly dispersed diffusing particles such as silica or barium sulfate inside the optical diffusion layer repeatedly refract, reflect, and scatter the light, disrupting the original direction of the light and transforming concentrated line or point light sources into uniformly emitted surface light sources. This results in uniform brightness across the entire image, presenting a high-end, soft, and professional visual performance, greatly enhancing the grade and visual appeal of the advertisement.

[0013] 2. Compared with existing technologies, this lightbox fabric structure features a self-cleaning coating. This coating possesses photocatalytic and superhydrophobic properties. Under light, its nano-titanium dioxide generates highly oxidizing active substances that gradually decompose organic dirt adhering to the surface into harmless substances such as water and carbon dioxide. Afterward, it can be easily washed away by rainwater. The contact angle of the coating surface with water droplets is greater than 150 degrees, causing water droplets to form beads and roll off easily. In this process, it can effectively trap and carry away dust particles on the surface, achieving a self-cleaning effect. Attached Figure Description

[0014] Figure 1This is a cross-sectional view of a lightbox fabric structure proposed in this utility model; Figure 2 This is a top view of the fabric layer of a lightbox fabric structure proposed in this utility model.

[0015] Legend: 1. Fabric layer; 101. First micro-groove; 102. First stretch layer; 103. Second micro-groove; 104. Second stretch layer; 2. Integrated multi-functional coating; 3. High reflectivity layer; 4. Optical diffusion layer; 5. PVC layer; 6. Self-cleaning coating. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 2 The structure of this lightbox fabric includes a fabric layer 1 and a PVC layer 5. The fabric layer 1 is a PET polyester warp-knitted base fabric. The top of the fabric layer 1 has a first micro groove 101 and a second micro groove 103. The first micro groove 101 is provided with a first stretch layer 102, and the second micro groove 103 is provided with a second stretch layer 104. The first stretch layer 102 and the second stretch layer 104 enhance the elasticity of the lightbox fabric and improve its tear resistance and mechanical durability during installation and use. An integrated multi-functional coating 2 is provided between the fabric layer 1 and the high reflective layer 3. The integrated multi-functional coating 2 can combine multiple functions such as flame retardancy and anti-aging, simplifying the lamination process, enhancing structural stability, and improving the safety and durability of the product. To enhance brightness, an optical diffusion layer 4 is located at the bottom of the PVC layer 5, and a high-reflection layer 3 is located at the bottom of the optical diffusion layer 4. The high-reflection layer 3 is a white high-reflection PET coating, and the optical diffusion layer 4 is a semi-transparent polymer layer doped with diffusion particles, which are silica or barium sulfate microspheres. When light from the light source inside the light box shines on the light, the high-reflection layer 3 reflects it back efficiently, allowing it to pass through the optical diffusion layer 4 and the PVC layer 5 again before being emitted. This process recovers and reuses the light energy that would otherwise be lost inside the light box. To achieve the same brightness as a traditional light box, a lower-power light source can be configured, directly reducing energy consumption and achieving energy saving and environmental protection. At the same time, the uniformly dispersed silica or barium sulfate diffusion particles inside the optical diffusion layer 4 repeatedly refract, reflect, and scatter the light, disrupting the original direction of the light and transforming concentrated line or point light sources into uniformly emitted surface light sources. This makes the brightness of the entire image uniform, presenting a high-end, soft, and professional visual performance, greatly enhancing the grade and visual appeal of the advertisement. To achieve self-cleaning, a self-cleaning coating 6 is provided on the upper surface of the PVC layer 5. The self-cleaning coating 6 is a photocatalytic material layer based on titanium dioxide, or a superhydrophobic and oleophobic material layer with micro-nano structure. The self-cleaning coating 6 has photocatalytic and superhydrophobic properties. Its nano-titanium dioxide will generate strong oxidizing active substances under light, which can gradually decompose the organic dirt attached to the surface into harmless substances such as water and carbon dioxide. Then, it can be easily washed away by rainwater. The contact angle of the coating surface with water droplets is greater than 150 degrees. Water droplets will form beads on it and roll off easily. In this process, it can effectively trap and carry away the dust particles on the surface, achieving the self-cleaning effect.

[0018] Working principle: When light from the light source inside the lightbox shines on the light, the high-reflection layer 3 efficiently reflects it back, allowing it to pass through the optical diffusion layer 4 and the PVC layer 5 before being emitted again. This process recovers and reuses the light energy that would otherwise be lost inside the lightbox. To achieve the same brightness as a traditional lightbox, a lower-power light source can be configured, directly reducing energy consumption and achieving energy saving and environmental protection. At the same time, the uniformly dispersed silica or barium sulfate particles inside the optical diffusion layer 4 repeatedly refract, reflect, and scatter the light, disrupting its original direction and transforming a concentrated line or point light source into a uniformly emitted light source. The surface light source ensures uniform brightness across the entire image, presenting a high-end, soft, and professional visual experience, greatly enhancing the advertising's quality and visual appeal. The self-cleaning coating 6 possesses photocatalytic and superhydrophobic properties. Its nano-titanium dioxide generates highly oxidizing active substances under light, gradually decomposing organic dirt adhering to the surface into harmless substances such as water and carbon dioxide. Afterward, it can be easily washed away by rainwater alone. The coating surface has a contact angle of more than 150 degrees with water droplets, causing water droplets to form beads and roll off easily. In this process, it effectively traps and carries away dust particles from the surface, achieving a self-cleaning effect.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightbox fabric structure, comprising a fabric layer (1) and a PVC layer (5), characterized in that: The bottom of the PVC layer (5) is provided with an optical diffusion layer (4), the bottom of the optical diffusion layer (4) is provided with a high reflectivity layer (3), and the upper surface of the PVC layer (5) is provided with a self-cleaning coating (6).

2. The lightbox fabric structure according to claim 1, characterized in that: The high-reflectivity layer (3) is a white high-reflectivity PET coating.

3. The lightbox fabric structure according to claim 1, characterized in that: The self-cleaning coating (6) is a photocatalytic material layer based on titanium dioxide, or a superhydrophobic and oleophobic material layer with micro-nano structure.

4. The lightbox fabric structure according to claim 1, characterized in that: An integrated multifunctional coating (2) is provided between the fabric layer (1) and the high reflective layer (3).

5. The lightbox fabric structure according to claim 1, characterized in that: The fabric layer (1) is a PET polyester warp-knitted base fabric.

6. The lightbox fabric structure according to claim 1, characterized in that: The optical diffusion layer (4) is a semi-transparent polymer layer doped with diffusion particles, which are silicon dioxide or barium sulfate microbeads.

7. The lightbox fabric structure according to claim 1, characterized in that: The top of the fabric layer (1) is provided with a first micro groove (101) and a second micro groove (103). A first stretch layer (102) is provided in the first micro groove (101), and a second stretch layer (104) is provided in the second micro groove (103).

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