PVC floor is a very popular novel light floor decoration material in the present world, and also called “Light Flooring Material”. It is a product well received by Europe, America as well as Japan and South Korea in Asia, sweeping foreign countries. Since the early 1980s, PVC floors have started to enter Chinese market, and have been generally recognized in large and medium-sized cities of China so far and been very widely applied to various occasions such as families, hospitals, schools, office buildings, factories, public places, supermarkets, business, stadiums, etc. “PVC floors” refer to floors produced by PVC materials. Specifically, PVC floors are produced by adding fillers, plasticizers, stabilizers, colorants and other auxiliaries into PVC and its copolymer resins serving as main raw materials and carrying out coating process or rolling, squeezing or extrusion process on platy continuous substrates.