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The knife coated flex banner is coated with liquid PVC slurry on the front and back sides of the base cloth with several anti-squeegee blades, and then all of them are combined into a whole through a drying process, and then cooled and formed. Its characteristics are strong anti-penetration, tensile strength, and resistance to peeling. Because the upper and lower parts of the blade scraping method are a whole, the peeling phenomenon can be eliminated, and the strength of the splicing place can be greater than the product itself by welding.

At present, the width of the flex banner of this process can reach 5 meters. Due to the complicated production process, the production equipment is relatively expensive
flex banner is divided into rear flex banner, front flex banner and grid cloth according to light transmittance and position of light source.

The rear flex banner is used to make the rear light box. The light transmittance is generally between 25% and 35%. These light boxes are mostly small and medium, and are mostly used to make roadside light boxes, store door light boxes and indoor publicity light boxes. Generally the area is small, not more than 100 square meters.

The front lighting flex banner is used to make the front light source light box, and its light transmittance is generally between 5% and 10%. This type of light box is more resistant to typhoons, so it is mostly used to make large outdoor light boxes, such as building billboards, high-speed roadside light boxes, and urban Optimus light boxes. Most of the large outdoor light boxes between 100-400㎡ use this kind of light cloth.
The grid cloth is densely arranged with many meshes on the surface of the material, so that the wind can pass through the surface of the light cloth, so the pressure of the typhoon on the light box can be greatly reduced, and the picture can reach the effect of outdoor use for a longer time. Because of this feature, grid cloth is mostly used to produce large sign advertisements and architectural advertisements.