Linyi Dazheng Special Fiber New Materials Co., Ltd. was registered and established in March 2014 in the East High tech Zone of Linyi County. It is a high-tech enterprise specializing in the production of special fibers, a provincial-level specialized and new small and medium-sized enterprise, a provincial-level gazelle enterprise, a technology-based small and medium-sized enterprise, and an innovative small and medium-sized enterprise. The company has obvious location advantages and convenient transportation, only 60 kilometers away from Jinan International Airport, Jinan High speed Railway Station, and Dezhou High speed Railway Station. The company aims to build a technology driven enterprise and has established close cooperative relationships with multiple domestic research institutes and downstream customers for in-depth research and development of ultrafine fibers. At present, the company has obtained 24 national authorized patents, including 9 invention patents and 15 utility model patents. The company's Dingdao fiber is divided into two categories: benzene reduction and alkali reduction, each with polyester island and nylon island products. There are three specifications of island long fiber and short fiber: 100 island, 64 island, 37 island, and 16 island, respectively. Among them, Dingdao island fiber above 60 island breaks Japan's technological monopoly and is produced exclusively domestically. Orange petal fibers come in two specifications: 16 petal and 32 petal, with 32 petal orange petal fibers being the first domestically produced. The company has developed recycled polyester staple fibers and high shrinkage polyester staple fibers ..