公开(公告)号：US20210216026A1

公开(公告)日：2021-07-15

申请号：US16923584

申请日：2020-07-08

Applicant: FUJI XEROX CO., LTD.

Inventor： Takashi INUKAI ,  Yasuaki HASHIMOTO ,  Daisuke NOGUCHI ,  Takuro WATANABE ,  Sakiko TAKEUCHI

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G15/08 ,  G03G21/18

Abstract: An electrostatic image developing toner includes toner particles, layered compound particles, and inorganic particles. The proportion of irregular-shaped inorganic particles having a circularity of 0.5 or more and 0.9 or less and a size of 0.015 μm or more and 0.350 μm or less to the entire inorganic particles is 2% by number or more and 70% by number or less.

公开(公告)号：US20190285998A1

公开(公告)日：2019-09-19

申请号：US16434341

申请日：2019-06-07

Applicant: FUJI XEROX CO., LTD.

Inventor： Satomi HARA ,  Masaru TAKAHASHI ,  Yukiaki NAKAMURA ,  Sakiko TAKEUCHI

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

Abstract: A brilliant toner includes a first toner which contains a first toner particle containing a flake-shape brilliant pigment; and a second toner which contains a second toner particle containing a flake-shape brilliant pigment, and has a different color from that of the first toner, and an electrostatic charge image developing toner includes a first toner which contains a first toner particle; and a second toner which has a different color from that of the first toner, and contains the second toner particle, in which, based on a charge distribution of each of the first toner and the second toner obtained according to a charge spectrograph method, maximum peak positions of the first toner and the second toner are taken as P1 and P2, respectively, and full widths at half maximum of the first toner and the second toner are taken as W1 and W2, respectively, |P1−P2| is 3 mm or less, and |W1−W2| is 3 mm or less.

公开(公告)号：US20210088923A1

公开(公告)日：2021-03-25

申请号：US16841689

申请日：2020-04-07

Applicant: FUJI XEROX CO., LTD.

Inventor： Sakiko TAKEUCHI ,  Daisuke NOGUCHI ,  Yuka YAMAGISHI ,  Yutaka SAITO ,  Kazuhiko NAKAMURA

IPC: G03G9/097 ,  G03G9/08 ,  G03G15/08 ,  G03G21/18 ,  G03G21/00

Abstract: An electrostatic-image developing toner includes toner particles, layered compound particles, and a free oil. The mass ratio Ma/Mb of the content Ma of the layered compound particles to the content Mb of the free oil is 0.05 or more and 100 or less.

公开(公告)号：US20190243269A1

公开(公告)日：2019-08-08

申请号：US16106603

申请日：2018-08-21

Applicant: FUJI XEROX CO., LTD.

Inventor： Satomi HARA ,  Masaru TAKAHASHI ,  Yukiaki NAKAMURA ,  Sakiko TAKEUCHI

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

CPC classification number: G03G9/0926 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782 ,  G03G9/0904

Abstract: A brilliant toner includes a first toner which contains a first toner particle containing a flake-shape brilliant pigment; and a second toner which contains a second toner particle containing a flake-shape brilliant pigment, and has a different color from that of the first toner, and an electrostatic charge image developing toner includes a first toner which contains a first toner particle; and a second toner which has a different color from that of the first toner, and contains the second toner particle, in which, based on a charge distribution of each of the first toner and the second toner obtained according to a charge spectrograph method, maximum peak positions of the first toner and the second toner are taken as P1 and P2, respectively, and full widths at half maximum of the first toner and the second toner are taken as W1 and W2, respectively, |P1-P2| is 3 mm or less, and |W1-W2| is 3 mm or less.

公开(公告)号：US20210088921A1

公开(公告)日：2021-03-25

申请号：US16842734

申请日：2020-04-07

Applicant: FUJI XEROX CO., LTD.

Inventor： Yuka YAMAGISHI ,  Daisuke NOGUCHI ,  Sakiko TAKEUCHI ,  Kazuhiko NAKAMURA ,  Yutaka SAITO

IPC: G03G9/08 ,  G03G15/02 ,  G03G15/08 ,  G03G15/20 ,  G03G21/00

Abstract: An electrostatic-image developing toner includes toner particles, layered compound particles, and inorganic particles. The inorganic particles have an average circularity of 0.910 or more and 0.995 or less. A ratio Da/Db of a number-average particle size Da of the layered compound particles to a number-average particle size Db of the inorganic particles is 1.2 or more and 43 or less.

公开(公告)号：US20210088920A1

公开(公告)日：2021-03-25

申请号：US16841661

申请日：2020-04-06

Applicant: FUJI XEROX CO., LTD.

Inventor： Yutaka SAITO ,  Daisuke NOGUCHI ,  Sakiko TAKEUCHI

IPC: G03G9/08 ,  G03G9/113 ,  G03G15/08 ,  G03G21/18

Abstract: An electrostatic charge image development toner contains toner particles and layered-structure compound particles. The layered-structure compound particles have a crystallite diameter of 150 Å or more and 250 Å or less as calculated from a maximum peak width in a Cu Kα X-ray diffraction chart and have a number-average particle diameter Dn of 0.3 μm or more and 2.0 μm or less. The ratio Dn/Dv of a number-average particle diameter Dn of the layered-structure compound particles to a volume-average particle diameter Dv of the toner particles is 0.03 or more and 0.7 or less.

公开(公告)号：US20210088919A1

公开(公告)日：2021-03-25

申请号：US16840470

申请日：2020-04-06

Applicant: FUJI XEROX CO., LTD.

Inventor： Daisuke NOGUCHI ,  Yuka YAMAGISHI ,  Sakiko TAKEUCHI ,  Kazuhiko NAKAMURA ,  Yutaka SAITO

IPC: G03G9/08 ,  G03G9/113 ,  G03G15/08 ,  G03G21/18

Abstract: An electrostatic charge image development toner that is negatively chargeable contains toner particles and layered-structure compound particles. The layered-structure compound particles have a volume-average particle diameter Da of 0.4 μm or more and less than 3.0 μm. The ratio Da/Db of the volume-average particle diameter Da of the layered-structure compound particles to the volume-average particle diameter Db of the toner particles is 0.044 or more and 0.625 or less.