公开(公告)号：DE68920758D1

公开(公告)日：1995-03-09

申请号：DE68920758

申请日：1989-02-24

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA KEISUKE ,  OHYAMA TSUKASA ,  GHODA ISAMU ,  MIKODA TAMIO MIKODA TAMIO ,  KOSHIDA HITOSHI ,  IGATA AKITOSHI

IPC: C09B1/54 ,  C09B1/58 ,  G03G9/09 ,  G03G9/08

Abstract: A novel negative charge color toner composition for electrostatic charge development having good light resistance and copy sharpness which contains, as a dyestuff in a toner resin, a 1-amino-2-phenoxy- or 2-thiophenoxy-4-hydroxyanthraquinone whose phenoxy or thiophenoxy group is substituted and/or a 1,4-diamino-2,3-phenoxyanthraquinone whose phenoxy group is substituted, which can be conventionally produced.

公开(公告)号：DE68920758T2

公开(公告)日：1995-05-18

申请号：DE68920758

申请日：1989-02-24

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA KEISUKE ,  OHYAMA TSUKASA ,  GHODA ISAMU ,  MIKODA TAMIO MIKODA TAMIO ,  KOSHIDA HITOSHI ,  IGATA AKITOSHI

IPC: C09B1/54 ,  C09B1/58 ,  G03G9/09 ,  G03G9/08

Abstract: A novel negative charge color toner composition for electrostatic charge development having good light resistance and copy sharpness which contains, as a dyestuff in a toner resin, a 1-amino-2-phenoxy- or 2-thiophenoxy-4-hydroxyanthraquinone whose phenoxy or thiophenoxy group is substituted and/or a 1,4-diamino-2,3-phenoxyanthraquinone whose phenoxy group is substituted, which can be conventionally produced.