What problems should be paid attention to when making PVC light box cloth?

Today, the pvc raw material ZHONGSHAN LINYANG PLASTIC CO.LTD Xiaobian will take you to see what problems should be paid attention to when making PVC light box cloth? The pvc light box fabric is a light box signboard fabric composed of two layers of PVC and a layer of high-strength mesh cloth. It is divided into two types: inner lighting and outer lighting. Its main production methods include knife coating method, calendering method, and bonding method (melting method). Quality identification points of pvc light box cloth: thickness, tensile strength, ductility, weather resistance, light transmission, flame retardancy, peeling degree, flatness, such as ink absorption, color reproduction, etc. for inkjet printing. According to the production process, pvc light box cloth is divided into three types: knife scraping method light box cloth, calendering method light box cloth and sticking method light box cloth. Knife scraping method: The knife scraping method light box cloth process is to apply the liquid PVC slurry evenly on the front and back sides of the base cloth with several reverse scrapers, and then completely combine it into a whole through the drying process, and then cool and form. It is characterized by strong anti-permeability, tensile strength and anti-peeling ability. Since the upper and lower parts of the knife-scraping method are a whole, the peeling phenomenon can be eliminated, and the strength of the splicing can be greater than that of the product itself by welding. At present, the width of the light box cloth of this process can reach 5 meters. Due to the complex production process and expensive production equipment, such products are mainly imported in the Chinese market, and the price of plastic tarpaulins is relatively high. The most representative ones are ULTRALON made in Germany, Hanwha made in Korea (UNIFLEX) and SIOEN made in Belgium. Calendering method: The calendering method is to fully stir various raw materials such as PVC powder and liquid plasticizer, and then adhere to the base cloth as a whole under the pressure of high-temperature hot rollers. Its characteristics are that the surface flatness is good, and the light transmission is uniform, which is more advantageous in the interior lighting cloth. However, due to the limitation of equipment, the width is generally not more than 3 meters. The 645 and 945 light box fabrics developed by the 3M company in the United States are produced by this process; the Lexi light box fabric developed by the South Korean LG company is also a representative of this kind of process. Lamination method: Lamination method light box cloth is to form the upper and lower layers of PVC film, and the pvc tarpaulin is heated and laminated with the middle optical fiber mesh under the pressure of the hot roller, and then cooled and formed. The biggest feature of this process is that it has excellent inkjet ink absorption and strong color expression. Therefore, with the rise of large-scale inkjet unemployed, it has also brought infinite vitality to this type of light box cloth. At present, the market share of such light box fabrics in China has exceeded 70%. To buy pvc tarpaulin, go to ZHONGSHAN LINYANG PLASTIC CO.LTD. Keywords: Zhongshan tarpaulin, pvc tarpaulin, plastic tarpaulin

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