公开(公告)号：US20220004113A1

公开(公告)日：2022-01-06

申请号：US17340471

申请日：2021-06-07

Applicant: Konica Minolta, Inc.

Inventor： Hiroshi NAGASAWA ,  Yusuke TAKIGAURA ,  Takaki KAWAMURA ,  Ami MOTOHASHI ,  Natsuki ITO ,  Shiro HIRANO

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/097 ,  G03G15/01

Abstract: A toner set includes a plurality of toners, wherein the toner set includes a first toner containing a yellow colorant and a second toner containing a cyan colorant, the first toner and the second toner each contain a binder resin containing a vinyl-based resin and a crystalline resin, and a release agent containing a hydrocarbon wax, a content of the vinyl-based resin with respect to a total mass of the binder resin is 50% by mass or more, the first toner contains the crystalline resin having a moiety having a crystal structure and a crystal nucleating agent moiety having a crystal nucleating agent, and the second toner contains the cyan colorant that is a compound represented by general formula (1).

公开(公告)号：US20190258185A1

公开(公告)日：2019-08-22

申请号：US16235535

申请日：2018-12-28

Applicant: Konica Minolta, Inc.

Inventor： Takaki KAWAMURA ,  Shiro HIRANO ,  Junya ONISHI ,  Ami MOTOHASHI

IPC: G03G9/087

Abstract: Provided is an electrostatic image developing toner including: toner mother particles containing a binder resin and a releasing agent; and an external additive, wherein the binder resin contains a crystalline resin, and the electrostatic image developing toner satisfies the following formulas (1) and (2), tan δ3° C./min

公开(公告)号：US20180217515A1

公开(公告)日：2018-08-02

申请号：US15881065

申请日：2018-01-26

Applicant: Konica Minolta, Inc.

Inventor： Yusuke TAKIGAURA ,  Takaki KAWAMURA ,  Shiro HIRANO

IPC: G03G9/087

CPC classification number: G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

Abstract: An electrostatic charge image developing toner includes a binder resin and a release agent. A ratio of a crystalline polyester resin to the total amount of a amorphous polyester resin and the crystalline polyester resin is within a range exceeding 40% by mass to 60% by mass. A temperature at which a storage modulus before heat left G′ before being left to stand at a temperature of X° C. becomes 1.0×108 Pa is within a range exceeding 45° C. to 55° C. A storage modulus after heat left G′ at a temperature of X′° C. at which a value of a ratio of the storage modulus after heat left G′ at a temperature of X° C. after being left to stand at the temperature of X° C. for 2 hours to the storage modulus before heat left G′ at the temperature of X° C. becomes the maximum is within a range of 1.0×108 to 5.0×108 Pa.

公开(公告)号：US20170371256A1

公开(公告)日：2017-12-28

申请号：US15623600

申请日：2017-06-15

Applicant: Konica Minolta, Inc.

Inventor： Aya SHIRAI ,  Kouji SUGAMA ,  Shiro HIRANO ,  Noboru UEDA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08782 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08784 ,  G03G9/08795 ,  G03G9/08797

Abstract: An object of the present invention is to provide an electrostatic latent image developing toner containing: a binder resin; and a releasing agent, wherein the binder resin contains a crystalline polyester resin; an endothermic peak top temperature of the electrostatic latent image developing toner is 70° C. or more measured with differential scanning calorimetry (DSC) in a heating-up period of the toner; and a heat value ΔHc(L) is 15% or less with respect to a heat value ΔHc, wherein the heat value ΔHc(L) is a heat value in the range of (an exothermic peak top temperature rc−7° C.) or less; and the heat value ΔHc is a heat value of the total exothermic peak measured with DSC in a heating-down period of the toner.

公开(公告)号：US20160313661A1

公开(公告)日：2016-10-27

申请号：US15087210

申请日：2016-03-31

Applicant: Konica Minolta, Inc.

Inventor： Kouji SEKIGUCHI ,  Shiro HIRANO ,  Naoya TONEGAWA ,  Masaharu MATSUBARA ,  Atsushi IIOKA

IPC: G03G9/097 ,  G03G9/087

CPC classification number: G03G9/09733 ,  G03G9/08711

Abstract: A particulate toner for developing electrostatically charged image includes a binder resin, a colorant, a mold release agent and a plasticizer. The binder resin comprises a styrene-acrylic resin. A relationship represented by Expression Ac

Abstract translation: 用于显影静电荷图像的微粒调色剂包括粘合剂树脂，着色剂，脱模剂和增塑剂。 粘合剂树脂包括苯乙烯 - 丙烯酸树脂。 由表达式Ac