Polyester would provide the best performance, but it is considered too costly for widespread use; acrylics are also considered too expensive despite the fact that they have superior properties for such uses.

• 涤纶纤维的性能最好,但人们认为它造价较高而不能大量使用；丙烯腈尽管具有许多优异的性能,但也被认为价格较高而不宜作此途。