公开(公告)号：US20150086919A1

公开(公告)日：2015-03-26

申请号：US14488348

申请日：2014-09-17

Applicant: Konica Minolta, Inc.

Inventor： Naoki YOSHIE ,  Keiichiro HIGASHI

IPC: G03G9/13

CPC classification number: G03G9/132 ,  G03G9/0821 ,  G03G9/09392 ,  G03G9/122

Abstract: A resin in a liquid developer contains 80 mass % or more of a urethane-modified polyester resin. A component derived from a polyester resin contains a constitutional unit derived from an acid component and a constitutional unit derived from an alcohol component. A ratio of a constitutional unit derived from an aliphatic monomer occupied in the constitutional unit derived from the acid component and the constitutional unit derived from the alcohol component is not lower than 90 mass %. Relation of |Tm1−Tm5|≧20° C. (70° C.≦Tm1≦170° C., 60° C.≦Tm5≦120° C.) is satisfied, where Tm1 (° C.) represents a softening temperature T1/2 of toner particles measured with a flow tester under a load of 1 kg and Tm5 (° C.) represents a softening temperature T1/2 of toner particles measured with a flow tester under a load of 5 kg.

Abstract translation: 液体显影剂中的树脂含有80质量％以上的氨基甲酸酯改性聚酯树脂。 衍生自聚酯树脂的组分含有由酸组分衍生的结构单元和衍生自醇组分的结构单元。 来源于酸成分的结构单元中所含的脂肪族单体的结构单元与来自醇成分的结构单元的比例为90质量％以上。 满足| Tm1-Tm5 |≥20℃（70℃＆lt; NlE; Tm1＆nlE; 170℃，60℃＆lt; Tm;＆lt; 120℃）的关系，其中Tm1（℃） 用流量计在1kg负荷和Tm5（℃）下测量的调色剂颗粒的软化温度T1 / 2表示用流动测试仪在5kg负荷下测量的调色剂颗粒的软化温度T1 / 2。

公开(公告)号：US20140370436A1

公开(公告)日：2014-12-18

申请号：US14306278

申请日：2014-06-17

Applicant: Konica Minolta, Inc.

Inventor： Naoki YOSHIE ,  Masahiro Anno ,  Yukiko Uno ,  Masaaki Oka

IPC: G03G9/13

CPC classification number: G03G9/132 ,  G03G9/125

Abstract: A liquid developer includes an insulating liquid and toner particles dispersed in the insulating liquid. The insulating liquid has a flash point not lower than 100° C. The toner particles contain a resin, and the resin contains 80 mass % or more of a first resin containing a component derived from a polyester resin. A solid content of the liquid developer corresponding to a portion of the liquid developer excluding the insulating liquid satisfies relation of G′(T0)/G′(T0+10)≧10 (50° C.≦T0≦70° C.), where G′(T0) represents a storage elastic modulus at a temperature T0 (° C.) and G′(T0+10) represents a storage elastic modulus at a temperature (T0+10) (° C.).

Abstract translation: 液体显影剂包括绝缘液体和分散在绝缘液体中的调色剂颗粒。 绝缘液体的闪点不低于100℃。调色剂颗粒含有树脂，并且树脂含有80质量％以上的含有源自聚酯树脂的成分的第一树脂。 对应于除了绝缘液体以外的液体显影剂的一部分的液体显影剂的固体含量满足G'（T0）/ G'（T0 + 10）≥10（50℃＆lt; 1; T0＆nlE; 70℃）的关系。 ），其中G'（T0）表示在温度T0（℃）下的储能弹性模量，G'（T0 + 10）表示在温度（T0 + 10）（℃）下的储能弹性模量。

公开(公告)号：US20210397108A1

公开(公告)日：2021-12-23

申请号：US17330941

申请日：2021-05-26

Applicant: Konica Minolta, Inc.

Inventor： Naoki YOSHIE ,  Yuka SUHARA

IPC: G03G9/087 ,  C08F212/08 ,  C08G63/195 ,  G03G15/08

Abstract: Provided is an image forming method, wherein after image formation with a printing material containing a release agent, a specific active ray-curable liquid substance is applied with a roll coating method, and when a coordinate (A, V) of a point indicating a contact angle A (°) and a viscosity V (mPa·s) corresponding to the contact angle Av (°) is plotted in a coordinate system having a contact angle A (°) on a horizontal axis and a viscosity V (mPa·s) on a vertical axis, the coordinate is included in a coordinate region R (A, V) on an upper side of a contact angle-viscosity curve represented by a formula on a right side of a specific expression.

公开(公告)号：US20150093700A1

公开(公告)日：2015-04-02

申请号：US14492128

申请日：2014-09-22

Applicant: Konica Minolta, Inc.

Inventor： Keiko MOMOTANI ,  Naoki YOSHIE ,  Yukiko UNO ,  Masaaki OKA

IPC: G03G9/13 ,  G03G9/12

CPC classification number: G03G9/131 ,  G03G9/09321 ,  G03G9/09364 ,  G03G9/09392 ,  G03G9/122 ,  G03G9/13

Abstract: A liquid developer set of the present invention includes a first liquid developer including an insulating liquid and first toner particles and a second liquid developer including an insulating liquid and second toner particles, the first toner particles include carbon black and a first resin, the second toner particles include a coloring agent other than carbon black and a second resin, without including carbon black, the first resin and the second resin each include a hydrocarbon long chain which is a hydrocarbon group having a carbon number of 8 to 30, and a mass ratio of the hydrocarbon long chain to the first toner particles is higher than a mass ratio of the hydrocarbon long chain to the second toner particles.

Abstract translation: 本发明的液体显影剂组包括包含绝缘液体和第一调色剂颗粒的第一液体显影剂和包含绝缘液体和第二调色剂颗粒的第二液体显影剂，第一调色剂颗粒包括炭黑和第一树脂，第二调色剂 颗粒包括除了炭黑以外的着色剂和不包括炭黑的第二树脂，第一树脂和第二树脂各自包括碳原子数为8至30的烃基的烃长链和质量比 的烃长链与第一调色剂颗粒的质量比高于烃长链与第二调色剂颗粒的质量比。

公开(公告)号：US20140234769A1

公开(公告)日：2014-08-21

申请号：US14184752

申请日：2014-02-20

Applicant: Konica Minolta, Inc.

Inventor： Naoki YOSHIE ,  Masahiro ANNO ,  Keiko MOMOTANI ,  Miyuki HOTTA ,  Satoshi MATSUMOTO ,  Sho KIM ,  Yukiko UNO

IPC: G03G9/12

CPC classification number: G03G9/12

Abstract: A liquid developer includes an insulating liquid and a plurality of toner particles. The plurality of toner particles has a median size not smaller than 1 μm and not greater than 3 μm as a whole. In the plurality of toner particles, average circularity is not smaller than 0.90 and not greater than 0.96, and a standard deviation of circularity is not smaller than 0.02 and not greater than 0.10.

Abstract translation: 液体显影剂包括绝缘液体和多个调色剂颗粒。 多个调色剂颗粒整体上具有不小于1μm且不大于3μm的中值粒径。 在多个调色剂颗粒中，平均圆形度不小于0.90且不大于0.96，圆形度的标准偏差不小于0.02且不大于0.10。

公开(公告)号：US20140087300A1

公开(公告)日：2014-03-27

申请号：US14030262

申请日：2013-09-18

Applicant: Konica Minolta, Inc.

Inventor： Yukiko UNO ,  Satoshi MATSUMOTO ,  Naoki YOSHIE ,  Kenji HAYASHI

IPC: C09D11/00 ,  G03G9/08

CPC classification number: C09D11/36 ,  C09D5/00 ,  C09D11/00 ,  C09D11/033 ,  C09D11/106 ,  C09D11/12 ,  G03G9/0804 ,  G03G9/0825 ,  G03G9/13 ,  G03G9/131 ,  G03G9/132

Abstract: Toner particles contained in a liquid developer have a core-shell structure that first resin particles containing a first resin are attached to or cover surfaces of second resin particles containing a second resin. The second resin satisfies Equations (1) to (2) below. In Equations (1) to (2) below, x represents a number average molecular weight of the second resin and y represents a urethane group concentration (mass %) in the second resin. −0.00003x+2.03≦y≦−0.00003x+6.95  Equation (1) 10000≦x≦50000  Equation (2)

Abstract translation: 包含在液体显影剂中的调色剂颗粒具有核 - 壳结构，其中含有第一树脂的第一树脂颗粒附着或覆盖包含第二树脂的第二树脂颗粒的表面。 第二树脂满足下述式（1）〜（2）。 在下面的等式（1）至（2）中，x表示第二树脂的数均分子量，y表示第二树脂中的氨基甲酸酯基浓度（质量％）。 -0.00003x + 2.03＆nlE; y＆nlE; -0.00003x + 6.95等式（1）10000＆nlE; x＆nlE; 50000等式（2）