摘要 |
The present invention provides methods for deinking printed waste paper - particularly methods that use a deinking composition that includes a hydrophobically-modified inorganic particle ("MIP") to improve ink collection efficiency under traditional alkaline, reduced alkali, and true neutral deinking conditions. Deinking compositions are provided that include a hydrophobically- MIP substrate, a nonionic surfactant, and a fatty acid, or mixtures thereof. The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentrations ("ERIC") values. |
申请人 |
KEMIRA CHEMICALS, INC.;ROSENCRANCE, SCOTT;NGOME, CHARLES, M.;HALE, KEVIN, M. |
发明人 |
ROSENCRANCE, SCOTT;NGOME, CHARLES, M.;HALE, KEVIN, M. |