在化纤工业的发展中,丙纶的起步较晚,但其发展的速度较快。自1957年以来,随着抽丝级聚丙烯和纺丝技术的科技进步,丙纶1996年的产量超过500万吨,占合成纤维的11.5％,在世界化纤发展中越来越受到重视。 我国的丙纶工业,自1980年的2500吨起步,1996年产量已达34万吨(包括纺粘布和滤咀丝束)成为仅次于涤纶的合纤第二大品种,居世界第二位,仅次于美国。 In the development of the chemical fiber industry, polypropylene started late, but its development speed is faster. Since 1957, with the advancement in science and technology of spinning grade polypropylene and spinning technology, the output of polypropylene in 1996 exceeded 5 million tons, accounting for 11.5% of synthetic fibers, and it has received increasing attention in the development of chemical fiber worldwide. The polypropylene industry in China started from 2,500 tons in 1980. In 1996, the output reached 340,000 tons (including spunbonded fabrics and filter tow) and became the second largest synthetic fiber group after polyester, ranking second in the world. Second only to the United States.