公开(公告)号：JPS6039655A

公开(公告)日：1985-03-01

申请号：JP14668183

申请日：1983-08-12

Applicant: TORAY INDUSTRIES

Inventor： KONDOU TSUNEYUKI ,  SATOU YASUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097

Abstract: PURPOSE:To prepare a brush fixing dry type toner stable in electrostatic chargeability characteristics by mixing an oil-soluble azo dye contg. a Cr complex compd. and carbon black with a higher fatty acid. CONSTITUTION:An oil-soluble azo dye containing a complex compound of chromium as a charge controller, and a higher fatty acid amide as a dispersant, and carbon black as a pigment are mixed by using a hammer mill in a dye- amide ratio of 10:1-1:10. These mixture or kneaded product is added into a molten epoxy resin and well kneaded, and cooled to room temp. to solidify. The obtained solid mass is roughly crushed and then finely pulverized to obtain a toner having an average particle diameter of 3-30mum.