PVB laminated glass is safe due to its excellent impact resistance and is a type of safety glass. In China, it is mainly used in the transportation and construction industries. According to the statistics of the Glass Industry Association, there are currently over 150 PVB laminated glass production lines in China, among which more than 50 are imported lines. The annual production capacity is approximately 20 million square meters. In 2004, the output was over 25 million square meters. It is expected that the output of PVB laminated glass will exceed 50 million square meters in 2010.
With the rapid development of the construction and automotive industries, the demand for PVB laminated glass will grow rapidly, and the prospects of the Chinese market are very bright. The Plastics Processing Association predicts that the demand for PVB glass laminated film in China will reach 350,000 tons in 2005 and exceed 600,000 tons by 2010. At present, the PVB films used in PVB laminated glass mainly rely on imports. The PVB film sheets of the three major companies, Sumitsu of Japan, DuPont of the United States and Shouno of the United States, have almost monopolized the Chinese market, seriously restricting the development of PVB laminated glass processing enterprises. After more than two decades of development, the raw materials, production processes and equipment of PVB in our country have become very mature. The PVB film processing project has become a popular investment at present
