针刺无纺布土工布是非织造及工业用布的一种。是采用纤维纤度为6-12旦，长度为54-64mm 的涤纶卷曲短纤维为原材料。通过无纺生产设备的开松，梳理，杂乱（短纤维相互交织在一起），铺网（规格化缠结固着），针刺等生产工艺的流程制成布状。
Needle punched nonwoven geotextile is a kind of nonwovens and industrial fabrics. It uses polyester crimped staple fibers with 6-12 denier fibers and 54-64 mm length as raw materials. Through the opening, carding, disorder (staple fibers intertwined with each other), laying nets (standardized entanglement, consolidation), needling and other production processes to make cloth.
它主要应用于铁路路基的加筋、公路路面的养护、运动馆、堤坝的防护、水工建筑的隔离、遂洞、沿海滩涂、围垦、环保等工程。
It is mainly used in railway subgrade reinforcement, highway pavement maintenance, gymnasium, dam protection, hydraulic construction isolation, tunnel, coastal beach, reclamation, environmental protection and other projects.