一种生产长丝非织造材料的新方法及其可行性研究

A new method for producing filament nonwoven materials and its feasibility

由于纺粘法生产长丝非织造材料存在局限性,提出了一种生产长丝非织造材料的新方法。选用无捻长丝纤维,利用静电分丝原理进行分丝,进而摆丝成网,再通过水刺、针刺、热轧等加固方式制备出长丝非织造材料。提出了采用分丝比及灰度直方图的标准差来表征分丝效果,并探究了影响分丝效果的因素。选用聚酯、聚丙烯长丝纤维为原料制备长丝土工布,并对其性能进行测试。测试结果显示,样品的各项性能均高于国家标准要求,说明该制备长丝非织造材料的方法可行。

In view of the limitation of spunbonded nonwovens, a new method for producing filament nonwoven materials is proposed. Non-twist filament fiber is used to separate the yarn by using the principle of electrostatic filament separation, and then the yarn is spun into a net. Then, the filament nonwoven material is prepared by means of spunlaeing, needle punching and hot rolling. Using filament disparting ratio and the standard deviation of gray level histogram to characterize the filament disparting effect is proposed and its influencing factors are analyzed. Polyester and polypropylene filament fiber are used as raw materials to prepare the filament geotextile by method mentioned above, and the filament geotextile properties are tested. The results show that the properties of the samples can exceed the requirements of the national standards. It shows that the method of preparing filament nonwoven material is feasible.