Textile coating finishing is a finishing process in which a layer (or multiple layers) of polymer compound is evenly coated on the surface of the fabric to form a layer or multiple layers of film on the surface of the fabric by bonding action. The film-forming polymer used is called the coating agent, and the fabric used is called the base fabric. As a base fabric, the fabric plays the role of the skeleton and plays a major role in the physical and mechanical properties and dimensional stability of the coated fabric. The main purpose of coating finishing is to improve the feel, appearance and style of the fabric, giving the fabric heat preservation, antibacterial, sound insulation, electrical conductivity, flash, reflective and other special features. Can simultaneously make the fabric to add many new functions, such as water and oil repellent, flame retardant, antibacterial, radiation protection, anti-static and other functions. On the basis of improving the physical and mechanical properties of the fabric, giving the fabric special functions is the trend of the future development of coating finishing.
PVC coated canvas fabric are coated fabrics with polyvinyl chloride (PVC) as the coating agent. PVC is a homopolymer of vinyl chloride and has excellent overall performance. When the plasticizer content is high, it shows high elongation, softness, good feel and abrasion resistance; raw materials are easily available, flame retardant, and the coated fabric is rich in feel and elasticity, good abrasion resistance, weather resistance, acid and alkali resistance, excellent shielding, good insulation, easy to dye into various colors, and can also be made into transparent colorless products. Especially, its low price makes it the coating agent of choice for many coated fabrics. However, PVC tarpaulin roll China will crack at low temperatures, plasticizer migration will occur during long-term use, and toxic substances such as heavy metals are easily mixed during processing, and hydrogen chloride and other toxic gases will be released during combustion, causing pollution to the surrounding environment.
PVC coated fabric material find applications in tarpaulins, awnings, tensile structures, truck curtains, inflatable boats, billboards, medical tents, gym mats, environmental liners, car interiors, outdoor furniture, and military shelters due to their durability, weather resistance, and versatility.