公开(公告)号：EP2947200A1

公开(公告)日：2015-11-25

申请号：EP15161626.5

申请日：2015-03-30

申请人： LION CORPORATION

发明人： Ishiguro, Masao ,  Hosokawa, Yasutaka ,  Yamaguchi, Masayoshi ,  Tamura, Masaru

IPC分类号： D21C5/02 ,  D21H11/14

CPC分类号： D21C5/027 ,  D21H11/14 ,  Y02W30/648

摘要： The present invention provides a deinking agent for flotation having excellent ink peeling properties, foaming properties, ink collecting properties, and ash removal properties, and a method of producing regenerated pulp. A deinking agent for flotation of the invention contains an (a) component which is a nonionic surfactant agent represented by the following General Formula (I). In addition, a method of producing regenerated pulp of the invention is a method in which the regenerated pulp is obtained by removing ink from raw material waste paper using a flotation method by using the deinking agent for flotation of the invention. R - O - PO p - EO m / PO m - PO q - H
(In Formula (I), R represents an alkyl group or an alkenyl group having 12 to 24 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, p is 1 to 15, m is 31 to 60, n is 1 to 15, and q is 3 to 30.)