The testing report indicates that breaking strength of PSA nonwoven felts are still increasing, and the increasing rate corresponds with the increasing densities of needle punching.

• 测试结果说明芳砜纶针刺非织造材料的断裂强力在经过高温处理后有比较明显的增加,并且断裂强力的增加率随着针刺密度的增加而增加。