公开(公告)号：US5643409A

公开(公告)日：1997-07-01

申请号：US313887

申请日：1994-09-28

申请人： Koji Hamaguchi ,  Yoichi Ishibashi ,  Hideaki Urushibata

发明人： Koji Hamaguchi ,  Yoichi Ishibashi ,  Hideaki Urushibata

IPC分类号： D21C5/02 ,  D21E5/02

CPC分类号： D21C5/027 ,  Y02W30/648

摘要： A deinking method which comprises adding a specified nonionic surfactant having a specified solubility parameter as an essential component, during in the pulping step (the preceding step) and in any of the subsequent steps (the succeeding step). By use of the deinking surfactant composition and the deinking method of the present invention, an excellent deinking performance, including an elevated whiteness, a decrease in the number of unliberated large ink spots and an improved defoaming property of the flotation reject, can be achieved in deinking waste papers, in particular, waste OA papers and blends containing thereof.

摘要翻译： 一种脱墨方法，包括在制浆步骤（前一步骤）和任何后续步骤（后续步骤）中加入具有特定溶解度参数的指定非离子表面活性剂作为必要组分。 通过使用本发明的脱墨表面活性剂组合物和脱墨方法，可以实现脱色性能优异，包括白度提高，不起泡的大油墨斑点数量的减少和浮选废料的消泡性能得到改善。 废纸废纸，特别是废纸和其含有的混合纸。