公开(公告)号：EP0286318A2

公开(公告)日：1988-10-12

申请号：EP88302889.6

申请日：1988-03-30

申请人： JAMES RIVER CORPORATION

发明人： Tse, Stephen H. ,  Hollenberg, David H. ,  Martin, Richard L. ,  Manning, James H.

IPC分类号： D21F11/00 ,  D21H21/06

CPC分类号： D21F11/004 ,  D21H13/02 ,  D21H15/06 ,  D21H17/57 ,  D21H21/06

摘要： A method for forming a non-woven fabric web by wet-laying fibers on paper-making equipment, the web comprising staple length natural or synthetic fibers and wood cellulose paper-making fibers wherein a water furnish of the fibers is made up with a nonionic associative thickener in the absence of a conventional surfactant. A preferred associative thickener for use with hydrophobic fibers is a nonionic urethane block copolymer having a polyethylene glycol backbone, the associative thickener acting as both surfactant and thickener. With predominately cellulosic fibers, i.e. conventional wood cellulose fibers, or a mixture of conventional and contorted wood fibers, and synthetic cellulosic fibers, such as rayon, a nonionic hydroxyethyl cellulose having a long alkyl side chain is preferred. Excellent consistency of the water fiber dispersion is obtained at relatively low viscosity with rapid drainage of water from the wire and uniform formation of the non-woven fabric.

摘要翻译： 一种通过在造纸设备上湿敷纤维形成无纺布网的方法，所述纤维网包括短纤维天然或合成纤维和木纤维素造纸纤维，其中纤维的水配料由非离子表面活性剂 在不存在常规表面活性剂的情况下，缔合增稠剂。 用于疏水纤维的优选缔合增稠剂是具有聚乙二醇骨架的非离子氨基甲酸酯嵌段共聚物，缔合增稠剂既用作表面活性剂又用作增稠剂。 主要是纤维素纤维，即常规木纤维素纤维，或常规和扭转的木纤维的混合物，以及合成纤维素纤维，例如人造丝，优选具有长烷基侧链的非离子羟乙基纤维素。 以较低的粘度获得水纤维分散体的优异的一致性，同时从丝网中迅速排出水分并均匀地形成无纺织物。