公开(公告)号：US5043241A

公开(公告)日：1991-08-27

申请号：US427392

申请日：1989-10-27

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G9/087 ,  G03G9/13

CPC分类号： G03G9/131 ,  Y10S430/105

摘要： A liquid developing agent comprising a resin dispersed in a nonaqueous solvent wherein said comprisecopolymer resin grains produced by polymerization of a solution containing one monofunctional monomer (a) which is soluble in said nonaqueous solvent but is rendered insoluble by polymerization and at least one monomer (B) which contains at least two polar groups and/or polar linkage groups and is represented by ##STR1## in the presence of a resin for dispersion stabilization which is soluble in said nonaquous solvent and is a polymer which has repeating units represented by the general formula (I) below ##STR2##

公开(公告)号：US5041352A

公开(公告)日：1991-08-20

申请号：US473535

申请日：1990-02-01

申请人： Eiichi Kato ,  Kazuo Ishii ,  Hideyuki Hattori

发明人： Eiichi Kato ,  Kazuo Ishii ,  Hideyuki Hattori

IPC分类号： G03G9/13

CPC分类号： G03G9/131 ,  G03G9/133

摘要： A liquid developer for electrostatic photography comprising a resin dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA.cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin is a polymer resin obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the aforesaid non-aqueous solvent but become insoluble after being polymerized, in the presence of a dispersion-stabilizing resin which is soluble in the aforesaid non-aqueous solvent and at least one oligomer (B) having a number average molecular weight of not more than 1.times.10.sup.4 and having at least one polar group selected from a carboxy group, a sulfo group, a hydroxy group, a formyl group, an amino group, a phosphono group, and ##STR1## wherein R.sup.0 represents a hydrocarbon group or --OR.sup.1, (wherein R.sup.1 represents a hydrocarbon group) bonded to only one terminal of the main chain of a polymer composed of a recurring unit represented by following formula (II): ##STR2## wherein V.sup.1, R.sup.2, a.sup.1 and a.sup.2 are as defined in the specification. The liquid developer is excellent in dispersion stability, re-dispersibility, and fixability, and also is capable of forming an offset printing plate having excellent ink-receptivitiy for printing ink and excellent printing durability by electrophotography.

摘要翻译： 一种用于静电照相的液体显影剂，其包含分散在电阻至少为10 9Ω·cm，介电常数不高于3.5的非水溶剂中的树脂，其中所述分散树脂是通过聚合含有 至少一种在可溶于上述非水溶剂的分散稳定树脂和至少一种低聚物的存在下，其可溶于前述非水溶剂但在聚合后变得不溶的单官能单体（A） B）数均分子量不大于1×10 4，并且具有至少一个选自羧基，磺基，羟基，甲酰基，氨基，膦酰基的极性基团， 其中R 0表示烃基或-OR 1（其中R 1表示烃基），其仅与由以重复单元表示的重复单元组成的聚合物的主链的仅一个末端键合 下式（II）：其中V1，R2，a1和a2如说明书中所定义。 液体显影剂的分散稳定性，再分散性和定影性优异，并且还能够形成具有优异的用于印刷油墨的油墨接受性和通过电子照相术获得优异印刷耐久性的胶版印刷版。

公开(公告)号：US4983486A

公开(公告)日：1991-01-08

申请号：US427273

申请日：1989-10-24

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G9/087 ,  G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131 ,  Y10S430/105

摘要： Disclosed is a liquid developer composition for electrophotography. In a non-aqueous solvent there is dispersed copolymer resin particles having been polymerized from at least one monofunctional monomer (A) and at least one monofunctional macromonomer (B) such as (III) ##STR1## in the presence of a dispersion stabilization resin copolymerizable with a mono-functional monomer (A).

摘要翻译： 公开了一种用于电子照相术的液体显影剂组合物。 在非水溶剂中，在至少一种单官能单体（A）和至少一种单官能大分子单体（B）如（III）＆lt; IMAGE＆gt;和（II）＆lt; IMAGE＆gt;中聚合有分散的共聚物树脂颗粒 存在可与单官能单体（A）共聚的分散体稳定树脂。

公开(公告)号：US4618557A

公开(公告)日：1986-10-21

申请号：US763112

申请日：1985-08-07

申请人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

发明人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131

摘要： An liquid developer for electrostatic photography is described, comprising a carrier liquid having an electric resistance of at least 10.sup.9 .OMEGA..multidot.cm and a dielectric constant of not more than 3.5, and a resin dispersed therein, said resin being obtained by polymerizing a monomer, which is soluble in said carrier liquid but becomes insoluble upon being polymerized, in the presence of at least one kind of a soluble dispersion stabilizing resin, said soluble dispersion stabilizing resin being a copolymer containing at least recurring units represented by following formulae (IIIa) and (IIIb) obtained by applying a reaction for introducing an unsaturated bond into a copolymer obtained by polymerizing a monomer represented by formula (I) and a monomer represented by formula (III) ##STR1## wherein in formula (I), V represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, --CONH--, --CONR'-- (wherein R' represents a hydrocarbon group), --NHCO--, NHCO.sub.2 --, or --NHCONH--; X represents --CO.sub.2 H, --COCl, --OH, --SH, --NH.sub.2, --NCO, or --SO.sub.2 CH.sub.2 CH.sub.2 Cl; W represents a hydrocarbon group linking said atomic group V and said atomic group X directly or through a hetero atom, or W represents a chemical bond; and a.sub.1, a.sub.2, and a.sub.3 each represents a hydrogen atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (II), Y represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, CONH--, --CONR"-- (wherein R" represents a hydrocarbon group), --NHCO--, --NHCO.sub.2 --, or --NHCONH--; R represents a hydrocarbon group; and b.sub.1, b.sub.2, and b.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (IIIa), a.sub.1, a.sub.2, a.sub.3, V, and W have the same meanings as defined for formula (I); X' represents --CO.sub.2 --, --COS--, --SCO--, --CONH--, --OCO--, --NHCO--, --NHCONH--, --SO.sub.2 --, --O--, or --S--; Z represents a hydrocarbon group linking said atomic group X' and unsaturated bond directly or through a hetero atom, or Z represents a chemical bond; the total number of atoms of the main chain portion of atomic group --V--W--X'--Z-- must, however, be at least 9; and d.sub.1, d.sub.2, and d.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group; andin formula (IIIb), b.sub.1, b.sub.2, b.sub.3, Y, and R have the same meanings as defined for formula (II).

公开(公告)号：US06843553B2

公开(公告)日：2005-01-18

申请号：US09741071

申请日：2000-12-21

申请人： Kazuo Ishii ,  Yusuke Nakazawa ,  Sadao Ohsawa ,  Eiichi Kato

发明人： Kazuo Ishii ,  Yusuke Nakazawa ,  Sadao Ohsawa ,  Eiichi Kato

IPC分类号： B41C1/10 ,  B41J2/06 ,  B41J3/407 ,  B41J3/60 ,  B41M5/00 ,  B41M7/00 ,  G01D11/00

CPC分类号： B41M5/00 ,  B41J2/06 ,  B41J3/60 ,  B41J2002/012 ,  B41J2002/061 ,  B41M7/00 ,  B41P2227/70

摘要： An ink jet printing method which comprises: directly forming an image on a printing medium on the basis of signals of image data; and fixing the image to produce a printed matter, wherein said image formation is carried out by an ink jet system of ejecting an oily ink by an electrostatic field. The method preferably further comprises cleaning an ink jet head, said cleaning step comprising: immersing said ink jet head in a cleaning solution; and applying voltage to said ink jet head. Alternatively, the method preferably further comprises, when a malfunction happens, either or both of stopping the image formation and eliminating a cause of the malfunction. Also disclosed are printing apparatuses suitably used for these methods.

摘要翻译： 一种喷墨打印方法，包括：基于图像数据的信号直接在打印介质上形成图像; 并且固定图像以产生印刷物，其中所述图像形成由通过静电场喷射油性墨水的喷墨系统进行。 该方法优选还包括清洁喷墨头，所述清洁步骤包括：将所述喷墨头浸入清洁溶液中; 并向所述喷墨头施加电压。 或者，该方法优选地还包括当发生故障时，停止图像形成或消除故障原因中的一个或两者。 还公开了适用于这些方法的印刷装置。

公开(公告)号：US06834586B1

公开(公告)日：2004-12-28

申请号：US09980112

申请日：2001-11-30

申请人： Sadao Ohsawa ,  Yusuke Nakazawa ,  Kazuo Ishii ,  Eiichi Kato

发明人： Sadao Ohsawa ,  Yusuke Nakazawa ,  Kazuo Ishii ,  Eiichi Kato

IPC分类号： B41C110

CPC分类号： B41M1/06 ,  B41C1/1066 ,  B41J2/06 ,  B41J3/60 ,  B41J2002/012 ,  B41J2002/061 ,  B41M7/009 ,  B41P2227/70

摘要： An on-press recording type lithographic printing method comprising mounting a plate material on a plate cylinder of a press, ejecting an oil-based ink onto the plate material from a recording head having a plurality of ejection channels utilizing an electrostatic field according to signals of image data to directly form an image on the surface of the plate material and prepare a printing plate, and then effecting the lithographic printing using the printing plate as it is, wherein the distance of the ejection channels is 170 &mgr;m, or more (150 dpi (150 dots per inch) or less as calculated in terms of resolution of recorded image).

摘要翻译： 一种按压记录型平版印刷方法，包括将板材安装在印刷机的印版滚筒上，从具有多个喷射通道的记录头将油性墨喷射到板材上，利用静电场根据 图像数据，以在板材的表面上直接形成图像，并准备印刷版，然后使用印版进行平版印刷，其中喷射通道的距离为170μm以上（150dpi （150点/英寸）以下）。

公开(公告)号：US06532870B1

公开(公告)日：2003-03-18

申请号：US08906815

申请日：1997-08-06

申请人： Eiichi Kato ,  Sadao Osawa ,  Hiroyuki Ohishi ,  Kazuo Ishii

发明人： Eiichi Kato ,  Sadao Osawa ,  Hiroyuki Ohishi ,  Kazuo Ishii

IPC分类号： B41C110

CPC分类号： B41C1/1066

摘要： A process for preparing an ink-jet system printing plate, wherein an image is formed according to a hot melt type ink-jet system by heat-melting an ink composition that is solid at ordinary temperature, spraying droplets of the ink composition in a hot melt state from nozzles onto an intermediate transferrer to form an image, and contact-transferring the image on the intermediate transferrer to an image receiving layer of a planographic printing plate precursor, the image receiving layer being provided on a water-resistive support and containing zinc oxide and a binder resin, and thereafter, a nonimage area of the image receiving layer is desensitized by chemical reaction treatment to prepare a planographic printing plate.

摘要翻译： 一种制备喷墨系统印版的方法，其中根据热熔型喷墨系统通过将常温下为固体的油墨组合物进行加热熔融形成图像，将油墨组合物的液滴喷射在热 从喷嘴到中间转印器的熔融状态以形成图像，并且将中间转印器上的图像接触转印到平版印刷版原版的图像接收层上，图像接收层设置在耐水性支持体上并含有锌 氧化物和粘合剂树脂，然后通过化学反应处理使图像接收层的非图像区域脱敏以制备平版印刷版。

公开(公告)号：US06305787B1

公开(公告)日：2001-10-23

申请号：US09419393

申请日：1999-10-15

申请人： Yusuke Nakazawa ,  Kazuo Ishii ,  Eiichi Kato

发明人： Yusuke Nakazawa ,  Kazuo Ishii ,  Eiichi Kato

IPC分类号： B41J214

CPC分类号： C09D11/36 ,  B41J2/06 ,  B41J2002/061

摘要： An ink jet recording method comprising: supplying insulating oily ink to an ejection part disposed so as to face a recording medium; irradiating the ink at the ejection part with light; applying an electrostatic field to the ink at the ejection part under irradiation in accordance with image data so as to eject the ink to form an image on the recording medium; and recovering excess ink from the ejection part. Also disclosed is an ink jet recording apparatus suitable for the ink jet recording method.

摘要翻译： 一种喷墨记录方法，包括：向设置成面对记录介质的喷射部分供给绝缘油性油墨; 用光在喷射部分照射墨水; 根据图像数据在照射下在喷射部分处向静电场施加静电场，以便喷射墨以在记录介质上形成图像; 并从喷射部分回收多余的油墨。 还公开了适用于喷墨记录方法的喷墨记录装置。

公开(公告)号：US6080449A

公开(公告)日：2000-06-27

申请号：US14160

申请日：1998-01-27

申请人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

发明人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

IPC分类号： B41C1/10 ,  B05D1/04

CPC分类号： B41C1/1066

摘要： An oil-based ink for a printing plate by an ink jet process comprising spraying an oil-based ink comprising at least resin particles dispersed in a nonaqueous carrier liquid having an electric resistance of 10.sup.9 .OMEGA.cm or more and a dielectric constant of 3.5 or less on an image receiving layer of a lithographic printing plate precursor dropwise from a nozzle to form an image, and then desensitizing a non-image area of the image receiving layer by a chemical reaction to prepare a lithographic printing plate, the image receiving layer being formed on a water-resistant support and comprising zinc oxide and a binding resin; and a surface of the image receiving layer having a contact angle with water of 50.degree. or more, wherein the resin particles dispersed are polymer particles obtained by polymerization granulation of a solution comprising (i), (ii) and (iii): (i) at least one monofunctional monomer (A) which is soluble in a nonaqueous solvent which is at least miscible with the nonaqueous carrier liquid and becomes insoluble therein by polymerization; (ii) (ii-a) at least one monomer which is copolymerizable with the monomer (A), or (ii-b) at least one monofunctional macromonomer (MA) having a weight average molecular weight of 2.times.10.sup.4 or less in which a polymerizable double bond group is combined with only one end of a main chain of a polymer comprising a repeating unit corresponding to a monomer; and (iii) at least one dispersion-stabilizing resin which is soluble in the nonaqueous solvent and has no graft group polymerizing with a monomer.

摘要翻译： 一种喷墨方法的印刷用油性油墨，其特征在于，喷涂含有至少分散在电阻为10 9Ω·cm以上，介电常数为3.5以下的非水载体液中的树脂颗粒的油性油墨 在平版印刷版前体的图像接收层上从喷嘴滴落形成图像，然后通过化学反应对图像接收层的非图像区域进行脱敏以制备平版印刷版，形成图像接收层 在防水载体上并包含氧化锌和粘合树脂; 和图像接收层的与水的接触角为50°以上的表面，其中分散的树脂颗粒是通过聚合造粒包含（i），（ii）和（iii）的溶液获得的聚合物颗粒：（i ）至少一种单官能单体（A），其可溶于非水溶剂中，所述非水溶剂至少与非水性载体液体可混溶并通过聚合而不溶于其中; （ii）（ii-a）至少一种可与单体（A）共聚的单体或（ii-b）至少一种重均分子量为2×10 4或更小的单官能大分子单体（MA），其中可聚合的 双键基团仅与包含对应于单体的重复单元的聚合物主链的一端结合; 和（iii）至少一种可溶于非水溶剂且不与单体聚合的接枝基团的分散体稳定树脂。

公开(公告)号：US5770340A

公开(公告)日：1998-06-23

申请号：US578952

申请日：1995-12-27

申请人： Takao Nakayama ,  Eiichi Kato ,  Kazuo Ishii

发明人： Takao Nakayama ,  Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/09 ,  G03G5/10 ,  G03G13/28 ,  G03G15/10 ,  G06C13/04

CPC分类号： G03G5/067 ,  G03G13/28 ,  G03G5/055 ,  G03G5/09 ,  G03G5/10 ,  Y10S430/146

摘要： A method for forming an image using scanning exposure of an electrophotographic lithographic printing plate comprising an electrically conductive support having thereon a photoconductive layer containing an inorganic photoconductor, a chemical sensitizer, a sensitizing dye and a binder resin, and a back layer on the opposite side of the photoconductive layer, wherein the back layer has a surface resistivity of 1.times.10.sup.10 .OMEGA. or less and the sensitizing dye in the photoconductive layer is at least one selected from the compounds represented by formulae (I) and (II) defined in the disclosure.

摘要翻译： 一种使用电子照相平版印刷版的扫描曝光来形成图像的方法，该电子照相平版印刷版包括其上具有含有无机光电导体，化学增感剂，敏化染料和粘合剂树脂的光电导层的导电载体和相对侧的背层 的光电导层，其中所述背层的表面电阻率为1×10 10Ω或更小，并且所述光电导层中的增感染料是选自本公开中定义的由式（I）和（II）表示的化合物中的至少一种。