公开(公告)号：US10859934B2

公开(公告)日：2020-12-08

申请号：US16728042

申请日：2019-12-27

申请人： Hiyori Fujino ,  Shoki Matsuda ,  Fumihiko Chimoto ,  Keisuke Tada ,  Daisuke Misawa

发明人： Hiyori Fujino ,  Shoki Matsuda ,  Fumihiko Chimoto ,  Keisuke Tada ,  Daisuke Misawa

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G15/20 ,  G03G15/08 ,  G03G9/087

摘要： A yellow toner is provided. The yellow toner comprises toner particles each comprising a binder resin and a colorant, and 1.0% to 15.0% by number of the toner particles have a CH rate of 25.0% or more in absolute value. Here, the CH rate is calculated from the following formula (1): CH rate (%)=[(In−Iave)/Iave]×100  Formula (1) where In represents an integrated intensity within a wavenumber region of from 2,750 to 3,250 cm−1 when an intensity at a wavenumber λ within a wavenumber region of from 950 to 3,250 cm−1 is normalized to 1 in a Raman spectrum of each toner particle; and Iave represents an average of the In.

公开(公告)号：US20200209772A1

公开(公告)日：2020-07-02

申请号：US16728042

申请日：2019-12-27

申请人： Hiyori FUJINO ,  Shoki MATSUDA ,  Fumihiko CHIMOTO ,  Keisuke TADA ,  Daisuke MISAWA

发明人： Hiyori FUJINO ,  Shoki MATSUDA ,  Fumihiko CHIMOTO ,  Keisuke TADA ,  Daisuke MISAWA

IPC分类号： G03G9/09 ,  G03G9/087 ,  G03G15/08 ,  G03G15/20

摘要： A yellow toner is provided. The yellow toner comprises toner particles each comprising a binder resin and a colorant, and 1.0% to 15.0% by number of the toner particles have a CH rate of 25.0% or more in absolute value. Here, the CH rate is calculated from the following formula (1): CH rate (%)=[(In−Iave)/Iave]×100  Formula (1) where In represents an integrated intensity within a wavenumber region of from 2,750 to 3,250 cm−1 when an intensity at a wavenumber λ within a wavenumber region of from 950 to 3,250 cm−1 is normalized to 1 in a Raman spectrum of each toner particle; and Iave represents an average of the In.