Particle occurrence in an aqueous jet ink from Sulfur Black 1 is greatly reduced by employing a Sulfur Black 1 completely oxidized at the solubilizing groups.
申请公布号
US4343653(A)
申请公布日期
1982.08.10
申请号
US19810255075
申请日期
1981.04.17
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
BEACH, BRADLEY L.;GATES, PAUL D.;SCHUM, JR., VAUGHN J.