公开(公告)号：DE2020812A1

公开(公告)日：1971-11-11

申请号：DE2020812

申请日：1970-04-28

Applicant: MITA INDUSTRIAL CO LTD

Inventor： UEDA YASUO ,  KAMEZAWA YASUTOKU ,  AIZAWA TATSUO ,  IKEDA TOSHIMITU

IPC: C09B1/20 ,  C09B1/28 ,  C09B1/32 ,  C09B1/46 ,  C09B1/60 ,  C09B39/00 ,  C09B47/08 ,  C09B63/00 ,  G03G9/09 ,  G03G9/12 ,  G03G9/04

Abstract: Liquid electrophotographic developer comprises dispersion of anthraquinone dye or -pigment, azo dye or -pigment or phthalocyanine pigment substd. by alkyl, alkoxy, thioalkoxy, alkylamino, alkylcarbonyl, N-alkylcarbonamide, N-alkylsulphonamide, alkarylamino, N-alkarylcarbonamide, N-alkarylsulphonamide, alkyl-benzenesulphonamide, alkoxyarylamino or alkylamino-triazinylamino grp. with 8-24 C atoms in the alkyl in liquid hydrocarbon. Developer has uniform charge polarity, storage stability, and produces clear images.

公开(公告)号：GB1286399A

公开(公告)日：1972-08-23

申请号：GB2094970

申请日：1970-04-30

Applicant: MITA INDUSTRIAL CO LTD

Inventor： UEDA YASUO ,  KAMEZAWA YASUTOKI ,  AIZAWA TATSUO ,  IKEDA TOSHIMITU

IPC: G03G9/12

Abstract: 1286399 Electro-photography MITA INDUSTRIAL CO Ltd 30 April 1970 20949/70 Heading G2H A liquid developer comprises a dispersion in a liquid hydro-carbon of an anthraquinone, azo or phthalocyanine colorant substituted by an alkyl, alkoxy, thioalkoxy, alkylamino, alkylcarbonyl, alkanamido, N-alkylsulphonamido, alkarylamino, alkarylcarbonylamino, N-alkaryl sulphonamido, N-alkylcarbonyl sulphonamido, alkylbenzenesulphonamido, alkoxyarylamino or alkylaminotriazinylamino group having 10-24 carbon atoms in each alkyl portion.