-
公开(公告)号:US20120077726A1
公开(公告)日:2012-03-29
申请号:US13313219
申请日:2011-12-07
申请人: Anette Nordskog , Wolfgang von Rybinski , André Hätzelt , Siglinde Erpenbach , Matthias Ballauf , Frank Polzer
发明人: Anette Nordskog , Wolfgang von Rybinski , André Hätzelt , Siglinde Erpenbach , Matthias Ballauf , Frank Polzer
CPC分类号: C11D3/3935 , C08K5/0091 , C11D3/3788 , C11D3/3932 , D21C9/1036 , D21C9/1042 , D21C9/163
摘要: The aim of the invention is to reduce the damage to cellulosic material during the bleaching treatment of cellulosic material by using catalysts with bleaching activity, without significantly impacting the bleaching performance in the process. This was achieved largely by way of a method for bleaching cellulosic material in the presence of a peroxygen-containing bleaching agent and a bleach-boosting transition metal complex, which is carried out in the presence of spherical polyelectrolyte brushes. The spherical polyelectrolyte brushes preferably contain the transition metal complex in a colloidally bound manner.
摘要翻译: 本发明的目的是通过使用具有漂白活性的催化剂在纤维素材料的漂白处理期间减少对纤维素材料的损害,而不会显着影响该方法中的漂白性能。 这主要通过在含有过氧化物的漂白剂和漂白助剂过渡金属配合物的存在下漂白纤维素材料的方法实现,该方法是在球形聚电解质刷子存在下进行的。 球形聚电解质刷优选以胶体结合的方式含有过渡金属络合物。