自20世纪60年代初美国Goodyear公司开发出涤纶帘子线以来，圈外涤纶工业丝的研究开发不断深入，产品性能显著提高，各种差别化的工业丝产品被推向市场。尤其是美国和欧洲市场，逐步建立了相对完善的阻燃纺织品法规体系。美国和欧洲的化纤生产企业从新世纪起，更重视阻燃型纺织品的研究开发与生产，并形成了从聚合物改性—纺丝—织造—整理的成套技术，从具备阻燃性能的帆布、安全带、传送带开始，逐渐推出了车用纺织品等一系列的阻燃产品。
Since the early 1960s, Goodyear developed polyester cord, the research and development of polyester industrial yarn outside the loop has been deepened, the product performance has been improved significantly, and various differential industrial yarn products have been put on the market. Especially in the US and European markets, a relatively perfect fire retardant textile regulation system has been gradually established. Since the beginning of the new century, chemical fiber manufacturers in the United States and Europe have paid more attention to the research, development and production of flame-retardant textiles, and formed a complete set of technologies from polymer modification-spinning-weaving-finishing. Starting from canvas, seatbelts and conveyor belts with flame-retardant properties, a series of flame-retardant textiles such as automotive textiles have been gradually introduced. Products.
我国法规或行业技术标准要求织物阻燃性能达到B1级(难燃级)的建筑装饰织物、煤炭工业使用的传送带、交通工具上使用的织物、物流的遮盖物均大量使用涤纶工业长丝。织物后整理获得阻燃效果的工艺在民用涤纶长丝织物领域已逐渐被采用具有阻燃性的纤维制得阻燃织物工艺所取代。
China's regulations or industry technical standards require that polyester industrial filaments are widely used in building decorative fabrics, conveyor belts used in coal industry, fabrics used in vehicles, and covering fabrics for logistics whose flame retardancy reaches B1 (flame retardant). The technology of flame retardant fabric after finishing has been gradually replaced by the technology of flame retardant fabric made of flame retardant fiber in the field of civil polyester filament fabric.
中国石化上海石化涤纶事业部从20世纪90年代起研究和开发阻燃聚酯和纤维产品。经过多年研究，通过对阻燃剂的筛选和工艺研究试验，在国内首家实现了具有成本减低、稳定性高、产品品质优异的在连续式工业化聚酯装置上生产磷系阻燃共聚酯切片。
Sinopec Shanghai Petrochemical Polyester Division has been studying and developing flame retardant polyester and fiber products since the 1990s. After years of research, through the screening of flame retardants and technological tests, it is the first time in China to produce phosphorus flame retardant copolyester chips with low cost, high stability and excellent product quality in a continuous industrial polyester plant.
磷系阻燃共聚酯再进行固相缩聚反应(又称增黏反应)，生成聚合度更高、相对分子质量更大的聚酯切片，其特性黏度可达0.9~1.0dL/g，然后直接纺丝制成磷系阻燃工业长丝。相对聚酯工业丝织物的阻燃后整理工艺，这种磷系阻燃工业长丝具有阻燃效果稳定、加工链总体生产成本降低、能耗降低和对后加工的环境污染减少的优势。
Phosphorus flame-retardant copolyester is prepared by solid-state polycondensation (also known as tackifying reaction) to form polyester chips with higher polymerization degree and higher relative molecular weight. Its intrinsic viscosity can reach 0.9-1.0 dL/g, and then directly spun into phosphorus flame-retardant industrial filaments. Compared with the flame retardant finishing process of polyester industrial silk fabric, the phosphorus-based flame retardant industrial filament has the advantages of stable flame retardant effect, lower overall production cost of processing chain, lower energy consumption and less environmental pollution after processing.