What The Problem Should Pay Attention To Do The PVC Light Box Cloth ?

Pvc light box cloth is a two-layer PVC and a layer of high-strength grid cloth composed of light box signs fabric, within the lighting and outside the two light. The main production methods are knife scraping coating method, calendering method, paste method (melting method).

      Pvc light box cloth quality identification points: thickness, tensile strength, ductility, weatherability, light transmission, flame retardant, peel degree, flatness, such as ink for inkjet, color reproduction and so on.

Pvc light box cloth according to the production process is divided into three kinds: respectively, knife knife light box cloth, calendering light box cloth and paste the light box cloth.

Knife scraping method: knife scraping light box cloth process is the liquid PVC slurry with a number of anti-scraper evenly coated on the fabric of the positive and negative sides, and then through the drying process to make it fully integrated into a whole, after cooling forming. It is characterized by anti-permeability, tensile strength, anti-stripping ability. As the knife blasting method is a whole product from top to bottom, so that stripping phenomenon can be eliminated, and through the welding can make the strength of splicing greater than the product itself. At present, this process of light box cloth width of up to 5 meters. As the production process is complex, the production equipment is more expensive, therefore, in the Chinese market such products to import the main, the price is relatively high. The most representative of the German-made Ottoman (ULTRALON), South Korea produced South Korea (UNIFLEX) and the Belgian production of lucky (SIOEN).

Rolling method: calendering method is PVC powder and liquid plasticizer and other raw materials to fully stir, after the high temperature heat roller pressure, and the base fabric into a whole. Which is characterized by good surface roughness, and even light transmission, including light cloth on the more advantages. But by the equipment limit, the width is generally not more than 3 meters. The United States 3M company developed 645 and 945 two kinds of light box cloth are produced with this process; another South Korean LG company developed Leixi light box cloth is also representative of such technology.

Adhesive method: paste the light box cloth is the upper and lower layers of PVC film, through the heating, under the pressure of the hot roller and the middle of the light guide fiber mesh together, cooling forming. The biggest feature of this process is to have excellent inkjet ink and strong color expression. Therefore, with the rise of large-scale inkjet industry, but also to such light box cloth brought infinite vitality. At present, such light box cloth in China's market share has more than 70%.