聚丙烯丝束(JBC)是由丙烯经聚合、纺丝、集束、拉伸及定型等生产工艺制得的白色柔性纤维,已开发利用为烟滤咀的主要原料,代替长期进口的三醋酸丝束。为对该产品的安全性评价提供资料,我们对生产工艺基本相同的三个不同厂家提供的JBC进行了急性毒性和致突变性检测。 Polypropylene tow (JBC) is a white flexible fiber made of propylene polymerization, spinning, bundling, stretching and setting production process. It has been developed and used as the main raw material for tobacco filter instead of long-term imported triacetate bundle. To provide information on the safety of this product, we conducted an acute toxicity and mutagenic test of JBC provided by three different manufacturers with essentially the same manufacturing process.