公开(公告)号：US20170123332A1

公开(公告)日：2017-05-04

申请号：US15274304

申请日：2016-09-23

Applicant: Konica Minolta, Inc.

Inventor： Satoshi UCHINO ,  Shinya OBARA ,  Futoshi KADONOME ,  Noriyuki KIMPARA ,  Ikuko SAKURADA ,  Takuya TAKAHASHI

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

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0918 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09791

Abstract: The toner of the present invention contains: a toner base particle, and a silica particle and a fatty acid metal salt particle adhering to a surface of the toner base particle. The toner base particle contains a crystalline polyester resin and an amorphous polyester resin. The toner particle has an average circularity of 0.945 to 0.965. The silica particle has a volume average particle size of 70 to 300 nm, and has an average circularity of 0.5 to 0.9. The fatty acid metal salt particle has a median diameter based on a volume of 0.50 to 2.00 μm.

公开(公告)号：US20160282741A1

公开(公告)日：2016-09-29

申请号：US15063930

申请日：2016-03-08

Applicant: Konica Minolta, Inc.

Inventor： Yasuko UCHINO ,  Junya ONISHI ,  Natsuko FUJISAKI ,  Anju HORI ,  Junya UEDA ,  Takaki KAWAMURA ,  Ikuko SAKURADA

IPC: G03G9/10

CPC classification number: G03G9/10 ,  G03G9/0823 ,  G03G9/1133 ,  G03G9/1139 ,  G03G13/013 ,  G03G15/09 ,  G03G15/6585 ,  G03G2215/0135 ,  G03G2215/0607 ,  G03G2215/0609

Abstract: The present invention relates to an image forming method of forming a color toner image and a white toner image using an image forming apparatus having a plurality of developing machines, in which the color toner image is formed using a color developer containing at least one color toner selected from the group consisting of a yellow toner, a magenta toner, and a cyan toner and a first carrier, the white toner image is formed using a white developer containing a white toner containing at least titanium oxide as a pigment and a second carrier, and formula (1) below is satisfied wherein Ic (μA) is a dynamic current value of the first carrier at 100 V and Iw (μA) is a dynamic current value of the second carrier at 100 V. According to the present invention, it is possible to suppress image unevenness of a color toner image and a white toner image on a recording medium. Iw

公开(公告)号：US20150362872A1

公开(公告)日：2015-12-17

申请号：US14722952

申请日：2015-05-27

Applicant: Konica Minolta, Inc.

Inventor： Takaki KAWAMURA ,  Yasuko UCHINO ,  Junya ONISHI ,  Natsuko FUJISAKI ,  Anju HORI ,  Junya UEDA ,  Ikuko SAKURADA

IPC: G03G9/00

CPC classification number: G03G9/08795 ,  G03G7/00 ,  G03G9/08797 ,  G03G9/0902 ,  G03G15/6585

Abstract: An image forming method includes: disposing a white toner image of a white toner and a colored toner image of a colored toner in the order named; and heat-fixing these toner images to a recording medium. The white toner and the colored toner satisfy the following relational expressions (1) and (2). In the expressions, G′0(w), G′10(w) and G′20(w) respectively represent storage moduli of the white toner 0 seconds after, 10 seconds after and 20 seconds after start of time variance measurement, and G′0(c), G′10(c) and G′20(c) respectively represent storage moduli of the colored toner 0 seconds after, 10 seconds after and 20 seconds after the start of time variance measurement. The storage moduli are obtained by the time variance measurement at 90° C. (G′10(c)/G′0(c))

Abstract translation: 图像形成方法包括：以所述顺序设置白色调色剂的白色调色剂图像和着色调色剂的着色调色剂图像; 并将这些调色剂图像热定影到记录介质上。 白色调色剂和着色调色剂满足以下关系式（1）和（2）。 在这些表达式中，G'0（w），G'10（w）和G'20（w）分别表示在开始时间方差测量之后的10秒钟和20秒之后白色调色剂的存储模量，以及 G'0（c），G'10（c）和G'20（c）分别表示在时间变化测量开始后10秒钟和20秒后有色调色剂的储存模量。 （G'10（c）/ G'0（c））<（G'10（w）/ G'0（w））关系式（1） ）：G'20（w）