公开(公告)号：EP4435519A1

公开(公告)日：2024-09-25

申请号：EP23191971.3

申请日：2023-08-17

申请人： FUJIFILM Business Innovation Corp.

发明人： TSURUMI, Yosuke ,  KADOKURA, Yasuo ,  IGUCHI, Moegi

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/08797 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08711 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1131 ,  G03G9/08793 ,  G03G9/0821

摘要： An electrostatic charge image developer contains a toner including toner particles that contain a binder resin and a carrier including magnetic particles and a resin layer that adheres to a surface of the magnetic particles, in which, in a dynamic viscoelasticity measurement of the toner, in a case where a loss tangent tanδ at a temperature of 90°C and a strain of 1% is represented by D1 (90), a loss tangent tanδ at a temperature of 90°C and a strain of 50% is represented by D50 (90), a loss tangent tanδ at a temperature of 150°C and a strain of 1% is represented by D1 (150), and a loss tangent tanδ at a temperature of 150°C and a strain of 50% is represented by D50 (150), each of D1 (90), D50 (90), D1 (150), and D50 (150) is 0.5 or more and 2.5 or less, a value of D50 (150) - D1 (150) is less than 1.5, and a value of D50 (90) - D1 (90) is less than 1.0, and in the surface of the magnetic particles, an average unevenness interval Sm and an arithmetic mean roughness Ra satisfy 0.5 µm ≤ Sm ≤ 2.5 µm and 0.3 µm ≤ Ra ≤ 1.2 µm.

公开(公告)号：EP3792694B1

公开(公告)日：2024-08-28

申请号：EP20195661.2

申请日：2020-09-11

IPC分类号： G03G9/087

CPC分类号： G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/08793 ,  G03G9/08782

公开(公告)号：EP4411480A1

公开(公告)日：2024-08-07

申请号：EP22873040.4

申请日：2022-09-26

申请人： Fujifilm Business Innovation Corp.

发明人： SAKAMOTO Shinya ,  IWASE Masaki ,  TANAKA Yumi

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/087 ,  G03G9/08 ,  G03G15/08 ,  G03G9/08797 ,  G03G9/08795 ,  G03G9/0821 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08711 ,  G03G9/08793

摘要： An electrostatic image developing toner including toner particles including a binder resin. When loss tangents tanδ at a temperature of 90°C and a strain of 1%, a temperature of 90°C and a strain of 50%, a temperature of 150°C and a strain of 1%, and a temperature of 150°C and a strain of 50%, the loss tangents tanδ being determined by measurement of dynamic viscoelasticity of the electrostatic image developing toner, are defined as D1(90), D50(90), D1(150), and D50(150), respectively, D1(90), D50(90), D1(150), and D50(150) are each 0.5 or more and 2.5 or less, D50(150) - D1(150) is less than 1.5, and D50(90) - D1(90) is less than 1.0; the toner particles further include resin particles; and the number average molecular weight of a component of the toner particles, the component being soluble in tetrahydrofuran, is 5000 or more and 15000 or less.

公开(公告)号：EP3112937B1

公开(公告)日：2018-10-10

申请号：EP15754698.7

申请日：2015-01-06

申请人： Ricoh Company, Ltd.

发明人： YAMADA, Hiroshi ,  SUGIMOTO, Tsuyoshi ,  CHIBA, Susumu ,  NAGAI, Shinsuke ,  NAGATA, Kohsuke ,  NAKAYAMA, Shinya ,  MIZOGUCHI, Yuka ,  AMEMORI, Suzuka

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

CPC分类号： G03G9/08755 ,  G03G9/0806 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G15/08

摘要： A toner including: a pigment; polyester resin A that is insoluble in tetrahydrofuran (THF); and polyester resin B that is soluble in THF, wherein the toner satisfies requirements (1) to (3) below: (1) the polyester resin A includes one or more aliphatic diols including from 3 through 10 carbon atoms, as a component constituting the polyester resin A; (2) the polyester resin B includes at least an alkylene glycol in an amount of 40 mol% or more, as a component constituting the polyester resin B; and (3) a glass transition temperature (Tglst) of the toner at first heating in differential scanning calorimetry (DSC) of the toner is from 20°C through 50°C.

公开(公告)号：EP3042243B1

公开(公告)日：2018-04-04

申请号：EP14841826.2

申请日：2014-08-13

申请人： Ricoh Company, Ltd.

发明人： CHIBA, Susumu ,  SUGIMOTO, Tsuyoshi ,  NAKAYAMA, Shinya ,  NAGATA, Kohsuke ,  NAGAI, Shinsuke ,  ASAHINA, Daisuke

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner, including: a polyester resin, wherein the polyester resin includes a diol component and a crosslink component as constituent components thereof, wherein the diol component contains an aliphatic diol having 3 to 10 carbon atoms in an amount of 50 mol % or more, wherein the crosslink component contains a trihydric or higher aliphatic alcohol, and wherein the toner has a glass transition temperature (Tg1st) of 20° C. to 50° C., where the glass transition temperature (Tg1st) is measured in first heating in differential scanning calorimetry (DSC) of the toner.

公开(公告)号：EP1936440B1

公开(公告)日：2018-04-04

申请号：EP07122762.3

申请日：2007-12-10

申请人： Xerox Corporation

发明人： Veregin, Richard P N. ,  Sacripante, Guerino G. ,  McDougall, Maria N V. ,  Gerroir, Paul J. ,  Agur, Enno E.

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/08791 ,  C08L67/02 ,  G03G9/0804 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner includes binder of amorphous polymer material, such as an amorphous polyester material, and a crystalline polymer material, such as a crystalline polyester material, wherein the amorphous polymer material has an acid number that is greater than an acid number of the crystalline polymer material. Further, the toner may have a minimum fusing temperature of from about 75°C to about 150°C and a relative humidity sensitivity of from about 0.5 to about 10. A method of making toner particles is also indicated.

公开(公告)号：EP3252535A1

公开(公告)日：2017-12-06

申请号：EP17172962.7

申请日：2017-05-25

申请人： Xerox Corporation

发明人： SAMBHY, Varun ,  STAMP, Kirk L. ,  MORALES-TIRADO, Juan A.

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/08

CPC分类号： G03G9/0902 ,  B41M5/502 ,  G03G9/0808 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09783

摘要： An apparatus and method of manufacturing a white dry ink pulverized toner including a resin and 15%-45% TiO2 pigment having a mean size of 100-350 nm melt mixed with the resin in a twin screw extruder resulting in an extruded mix. The extruded mix is pulverized in a fluid bed jet mill. Fines of the pulverized extruded mix less than 5 microns may be removed from the pulverized extruded mix by classification leaving pulverized particles having a mean size of 6-12 microns. The pulverized particles are blended in a mixer with surface additives including silica and ZnSt, and the white dry ink pulverized toner has a developer charge between 5 and 50 µC/gram and a Lightness ( L *) of at least 75 at a toner mass per unit area (TMA) of at most 1.2 mg/cm 2 .

摘要翻译： 在双螺杆挤出机中将包含树脂和平均尺寸为100-350nm的15％-45％TiO 2颜料的树脂与双螺杆挤出机熔融混合制造白色干墨水粉碎调色剂的装置和方法，得到挤出混合物。 将挤出的混合物在流化床喷磨机中粉碎。 粉碎的挤出混合物的细粒可以通过分级从粉碎的挤出混合物中去除，留下平均尺寸为6-12微米的粉碎颗粒。 将粉碎的颗粒与包括二氧化硅和ZnSt的表面添加剂在混合器中混合，白色干燥油墨粉碎的调色剂具有5至50μC/ g的显影剂电荷和每调色剂质量至少75的亮度（L *） 单位面积（TMA）至多为1.2mg / cm 2。

公开(公告)号：EP3213150A4

公开(公告)日：2017-10-04

申请号：EP15854366

申请日：2015-10-08

申请人： RICOH CO LTD

发明人： SUGIMOTO TSUYOSHI ,  NAKAYAMA SHINYA ,  YAMADA HIROSHI ,  SANTO HIDEYUKI ,  CHIBA RYUTA ,  AMEMORI SUZUKA ,  NAGATA KOHSUKE

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08764 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner, including: a polyester resin, wherein the polyester resin has a structure represented by any one of formulas 1) to 3) below: 1) R1-(NHCONH-R2)n-, 2) R1-(NHCOO-R2)n-, and 3) R1-(OCONH-R2)n-, where n is 3 or more, R1 represents an aromatic organic group or an aliphatic organic group, and R2 represents a group derived from a resin that is polyester formed of polycarboxylic acid, polyol, or both thereof; or that is a modified polyester obtained by modifying polyester with isocyanate.

摘要翻译： 一种调色剂，其包含：聚酯树脂，其中所述聚酯树脂具有由以下式1）至3）中的任一个表示的结构：1）R 1 - （NHCONH-R 2）n - ，2）R 1 - （NHCOO-R 2） n和3）R 1 - （OCONH-R 2）n - ，其中n为3或更大，R 1表示芳族有机基团或脂族有机基团，并且R 2表示衍生自由聚羧酸形成的聚酯树脂的基团 酸，多元醇或其两者; 或者是通过用异氰酸酯改性聚酯而获得的改性聚酯。

公开(公告)号：EP2544049B1

公开(公告)日：2017-01-18

申请号：EP12173917.1

申请日：2012-06-27

申请人： Toshiba TEC Kabushiki Kaisha

发明人： Aoki, Takayasu ,  Hara, Takafumi ,  Itou, Tsuyoshi ,  Ikuta, Masahiro ,  Udo, Motonari ,  Shimokusa, Koji ,  Mizuhata, Hiroshi

IPC分类号： G03G9/09 ,  G03G9/087

CPC分类号： G03G9/0928 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/0926

公开(公告)号：EP2667255B1

公开(公告)日：2016-05-18

申请号：EP13169007.5

申请日：2013-05-23

申请人： Ricoh Company, Ltd.

发明人： Yoshida, Ryuuta ,  Ogawa, Satoshi ,  Watanabe, Masaki ,  Shu, Hyo ,  Watanabe, Naohiro

IPC分类号： G03G8/00 ,  G03G9/087 ,  G03G9/08 ,  G03G9/09

CPC分类号： G03G15/01 ,  G03G8/00 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09