公开(公告)号：US20230418177A1

公开(公告)日：2023-12-28

申请号：US18339903

申请日：2023-06-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： KENJI AOKI ,  MARIKO YAMASHITA ,  YUHEI TERUI ,  TAKASHI MATSUI

IPC: G03G9/087

CPC classification number: G03G9/08733 ,  G03G9/08728

Abstract: A toner comprising a toner particle, the toner particle comprising a binder resin, wherein T1, T2, T3, tan δ(T2), and tan δ(T2−10) satisfy expressions (1) to (4):


T3−T1≤10   (1)



50≤T2≤70   (2)



0.30≤tan δ(T2)≤1.00   (3)



1.00≤tan δ(T2)/tan δ(T2−10)≤1.90   (4).

Where, in measurement of viscoelasticity of the toner, T1(° C.) represents a temperature at which a storage elastic modulus G′ is 3.0×107 Pa, T2(° C.) represents a temperature at which the storage elastic modulus G′ is 1.0×107 Pa, T3(° C.) represents a temperature at which the storage elastic modulus G′ is 3.0×106 Pa, tan δ(T2) represents a ratio (tan δ) of a loss elastic modulus G″ to the storage elastic modulus G′ at the temperature T2(° C.), and tan δ(T2−10) represents the ratio (tan δ) at a temperature: T2−10(° C.).

公开(公告)号：US20230418176A1

公开(公告)日：2023-12-28

申请号：US18339875

申请日：2023-06-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： MARIKO YAMASHITA ,  TAKASHI MATSUI ,  KENJI AOKI ,  YUHEI TERUI ,  SHINTARO NOJI

IPC: G03G9/087 ,  G03G9/083

CPC classification number: G03G9/08733 ,  G03G9/0839 ,  G03G9/08728

Abstract: A magnetic toner comprising a toner particle, the toner particle comprising a magnetic body, a crystalline resin A, and an amorphous resin B. The crystalline resin A has a monomer unit (a). The amorphous resin B has a monomer unit (b). A content of the crystalline resin A in the toner is 6.2 to 77.0 mass %. The sum of contents of the crystalline resin A and the amorphous resin B in the toner is 30.0 mass % or more. A content of the monomer unit (a) in the crystalline resin A is 50.0 to 100.0 mass %. Using SPA [(J/cm3)0.5] for a SP value of the crystalline resin A and using SPB [(J/cm3)0.5] for a SP value of the amorphous resin B, SPA and SPB satisfy 0.15≤SPB−SPA≤2.00.

公开(公告)号：US20180004109A1

公开(公告)日：2018-01-04

申请号：US15631186

申请日：2017-06-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takashi Matsui ,  Naoki Okamoto ,  Yuujirou Nagashima ,  Keisuke Tanaka ,  Shohei Tsuda ,  Kosuke Fukudome ,  Takuya Mizuguchi

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08797 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/083 ,  G03G9/08702 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08733 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795

Abstract: A toner having a toner particle containing a binder resin, an amorphous polyester, and a colorant, wherein a softening point of the toner is at least 110° C. and not more than 140° C.; an integrated value f1 for stress of the toner is not more than 10 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.01 seconds; and an integrated value f2 for stress of the toner is at least 30 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.1 seconds.

公开(公告)号：US09835962B2

公开(公告)日：2017-12-05

申请号：US14629995

申请日：2015-02-24

Applicant: FUJI XEROX CO., LTD.

Inventor： Satoshi Kamiwaki ,  Akira Matsumoto ,  Tsuyoshi Murakami ,  Satoshi Miura ,  Atsushi Sugawara ,  Yukiaki Nakamura ,  Kana Yoshida ,  Yutaka Saito ,  Sakon Takahashi ,  Yasuaki Hashimoto ,  Koji Sasaki ,  Tsutomu Furuta

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

CPC classification number: G03G9/0825 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08733 ,  G03G9/0918

Abstract: There is provided an electrostatic image-developing toner containing a binder resin, a coloring agent and a release agent having a melting temperature of 85° C. to 120° C., the toner having a sea-island structure involving a sea part containing the binder resin and an island part containing the release agent, wherein a mode value of the distribution of the eccentricity degree B of the release agent-containing island part, represented by the specific formula, is from 0.75 to 1.00 and a skewness of the distribution of the eccentricity degree B is from −1.30 to −0.50.

公开(公告)号：US20170115583A1

公开(公告)日：2017-04-27

申请号：US15296732

申请日：2016-10-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazuki TSUCHIHASHI

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC classification number: G03G9/0825 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08733 ,  G03G9/08755 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09364 ,  G03G9/09371 ,  G03G9/09392

Abstract: An electrostatic latent image developing toner contains a plurality of toner particles each including a toner core and a shell layer disposed over a surface of the toner core. The shell layer has at least one first domain having a film shape and a plurality of second domains each having a particle shape. The first domain is formed substantially from a non-crosslinked resin. The second domains are formed substantially from a crosslinked resin. The crosslinked resin has a glass transition point 45° C. or more greater than the non-crosslinked resin. The first domain has an average height from the surface of the toner core of at least 10 nm and less than 50 nm. The second domains have an average height from the surface of the toner core of at least 50 nm and no greater than 100 nm.

公开(公告)号：US09606464B2

公开(公告)日：2017-03-28

申请号：US14409267

申请日：2013-06-13

Applicant: Yoshitaka Yamauchi ,  Kazumi Suzuki ,  Tatsuya Morita ,  Hiroshi Yamashita ,  Tsuyoshi Sugimoto ,  Daisuke Asahina

Inventor： Yoshitaka Yamauchi ,  Kazumi Suzuki ,  Tatsuya Morita ,  Hiroshi Yamashita ,  Tsuyoshi Sugimoto ,  Daisuke Asahina

IPC: G03G9/00 ,  G03G9/087

CPC classification number: G03G9/08733 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

Abstract: A resin composition for a toner including a polyester resin and a colorant, wherein the polyester resin has A(10)-A(180) of 70 or greater, where A(10) (%) is a transmittance of light having a wavelength of 500 nm through a mixture of 20 parts by mass of the polyester resin added to 80 parts by mass of ethyl acetate and stirred at 25° C. for 10 minutes, and A(180) (%) is the transmittance after the mixture is left to stand for 3 hours.

公开(公告)号：US09377704B2

公开(公告)日：2016-06-28

申请号：US13667979

申请日：2012-11-02

Applicant: Xerox Corporation

Inventor： Valerie M Farrugia ,  Jordan H Wosnick ,  Eric Rotberg ,  Karen A Moffat ,  Richard P N Veregin ,  Suxia Yang ,  C Geoffrey Allen

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

CPC classification number: G03G9/08711 ,  G03G9/0804 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733 ,  G03G9/0914 ,  G03G9/0926

Abstract: Red toners that approximate PANTONE® Red 032 and PANTONE® Warm Red are described. The colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 520 nm, and where the red colorant absorbs light having a wavelength of from about 500 to 580 nm.

Abstract translation: 描述了近似PANTONE®Red 032和PANTONE®Warm Red的红色调色剂。 着色剂包括橙色着色剂和红色着色剂，其中橙色着色剂吸收波长为约400至约520nm的光，并且其中红色着色剂吸收波长为约500至580nm的光。

公开(公告)号：US20160085165A1

公开(公告)日：2016-03-24

申请号：US14629995

申请日：2015-02-24

Applicant: FUJI XEROX CO., LTD.

Inventor： Satoshi KAMIWAKI ,  Akira MATSUMOTO ,  Tsuyoshi MURAKAMI ,  Satoshi MIURA ,  Atsushi SUGAWARA ,  Yukiaki NAKAMURA ,  Kana YOSHIDA ,  Yutaka SAITO ,  Sakon TAKAHASHI ,  Yasuaki HASHIMOTO ,  Koji SASAKI ,  Tsutomu FURUTA

IPC: G03G9/00

CPC classification number: G03G9/0825 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08733 ,  G03G9/0918

Abstract: There is provided an electrostatic image-developing toner containing a binder resin, a coloring agent and a release agent having a melting temperature of 85° C. to 120° C., the toner having a sea-island structure involving a sea part containing the binder resin and an island part containing the release agent, wherein a mode value of the distribution of the eccentricity degree B of the release agent-containing island part, represented by the specific formula, is from 0.75 to 1.00 and a skewness of the distribution of the eccentricity degree B is from −1.30 to −0.50.

Abstract translation: 提供一种含有粘合剂树脂，着色剂和熔点为85℃至120℃的脱模剂的静电显影调色剂，该调色剂具有海岛结构，其包含含有 粘合剂树脂和含有脱模剂的岛部分，其中由具体式表示的含脱模剂的岛部分的偏心度B的分布的模态值为0.75至1.00，并且分布的偏度 偏心度B为-1.30〜-0.50。

公开(公告)号：US20160026102A1

公开(公告)日：2016-01-28

申请号：US14617418

申请日：2015-02-09

Applicant: FUJI XEROX CO., LTD.

Inventor： Emi MIYATA ,  Soichiro KITAGAWA ,  Tomohiro SHINYA

IPC: G03G9/00

CPC classification number: G03G9/08755 ,  G03G9/08733 ,  G03G9/08795 ,  G03G9/08797

Abstract: An electrostatic charge image developing toner includes a toner particle including a binder resin containing an amorphous polyester resin and a crystalline polyester resin, wherein a Young's modulus of the toner particles at 20° C. is 3.0 GPa to 3.5 GPa.

Abstract translation: 静电荷图像显影调色剂包括具有包含无定形聚酯树脂和结晶聚酯树脂的粘合剂树脂的调色剂颗粒，其中调色剂颗粒在20℃下的杨氏模量为3.0GPa至3.5GPa。

公开(公告)号：US20150024324A1

公开(公告)日：2015-01-22

申请号：US14507870

申请日：2014-10-07

Applicant: MITSUBISHI CHEMICAL CORPORATION

Inventor： Masaya OTA ,  Tomohiko Tokunaga ,  Kazuo Mitsuhashi

IPC: G03G9/08

CPC classification number: G03G9/0802 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08733 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

Abstract: To provide an emulsion polymerized agglomerated toner for electrostatic charge image which is excellent in the fixing property even at a high temperature without deteriorating other properties and which does not emit an odor offensive to people, and a process for its production.An emulsion polymerized agglomerated toner characterized in that the odor index of aliphatic aldehydes measured by gas chromatography is at most 300, and an emulsion polymerized agglomerated toner which is an emulsion polymerized agglomerated toner obtainable via a polymerization step, a flocculation step and an aging step, characterized in that an emulsion polymerized latex before the flocculation step is a latex having a peroxide value of at most 30.

Abstract translation: 为了提供即使在高温下定影性也优异的静电荷图像的乳液聚合的附聚调色剂，而不会劣化其它性质，并且不会产生对人不利的气味及其制备方法。 一种乳液聚合的附聚调色剂，其特征在于通过气相色谱法测定的脂族醛的气味指数为至多300，并且是通过聚合步骤，絮凝步骤和老化步骤获得的乳液聚合的附聚调色剂， 其特征在于，在絮凝步骤之前的乳液聚合胶乳是具有至多30的过氧化物值的胶乳。