公开(公告)号：US4880716A

公开(公告)日：1989-11-14

申请号：US154547

申请日：1988-02-10

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/147

CPC分类号： G03G5/14786

摘要： An electrophotographic lithographic printing plate precursor comprising a conductive support having provided thereon at least one photoconductive layer and further provided thereon an outermost surface layer is disclosed, in which said surface layer contains at least one resin having at least one functional group capable of forming a carboxyl group upon decomposition which is represented by formula (I): ##STR1## wherein x is as defined in the specification. The surface layer can be rendered highly hydrophilic while exhibiting water resistance when subjected to oil-desensitization processing after toner image formation to provide a lithographic printing plate having excellent printing durability.

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。

公开(公告)号：US5393625A

公开(公告)日：1995-02-28

申请号：US181243

申请日：1994-01-13

申请人： Eiichi Kato ,  Seishi Kasai ,  Kazuo Ishii

发明人： Eiichi Kato ,  Seishi Kasai ,  Kazuo Ishii

IPC分类号： C08F8/00 ,  C08K3/22 ,  G03G5/05 ,  G03G5/06 ,  G03G5/08 ,  G03G5/087 ,  G03G5/09 ,  G03G13/28

CPC分类号： G03G5/0589 ,  C08F8/00 ,  C08K3/22

摘要： Disclosed is electrophotolithographic plate precursor having on a conductive support at least one photoconductive layer containing at least a random copolymer binder resin (P) (i) having a weight average molecular weight of from 5.times.10.sup.4 to 5.times.10.sup.5, (ii) comprising (a) a polymer component comprising particular methacrylate or acrylate monomers, (b) a polymer component containing at least one particular polar group and (c) a polymer component having a Fedors' solution parameter of 9.0 or more and containing at least a particular aprotic polar group, and (iii) having at least a particular polar group at one end of the main chain of the copolymer. The plate precursor may be etched with a combination of an etchant and a wetting water both having no problem in the environmental sanitation, to be formed into an offset printing plate not generating background staining. The printing plate has high printing durability and has excellent rubbing resistance.

摘要翻译： 公开了电子照相平版印刷版原版，其在导电载体上具有至少一个光导电层，其至少含有重均分子量为5×10 4至5×10 5的无规共聚物粘合剂树脂（ⅰ），（ⅱ）包含（a）聚合物 包含特定的甲基丙烯酸酯或丙烯酸酯单体的组分，（b）含有至少一个特定极性基团的聚合物组分和（c）具有9.0或更高的Fedors溶液参数并且至少含有特定非质子极性基团的聚合物组分和（ iii）在共聚物的主链的一端具有至少一个特定的极性基团。 可以用环境卫生中没有问题的蚀刻剂和润湿水的组合来蚀刻板前体，以形成不产生背景染色的胶版印刷版。 该印版具有高的印刷耐久性并且具有优异的耐摩擦性。

公开(公告)号：US5382488A

公开(公告)日：1995-01-17

申请号：US64056

申请日：1993-05-18

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05 ,  G03G5/087 ,  G03G5/09

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material which has improved electrostatic characteristics and image forming performance and is excellent particularly in reproducibility of highly accurate image using a liquid developer and image forming performance upon a scanning exposure system using a laser beam of a low power.The electrophotographic light-sensitive material contains, as a binder resin, a low molecular weight resin (A) comprising an organic molecule having bonded thereto at least three polymer chains each containing a polymer component of formula (I) and a polymer component having a specified polar group, and a resin (B) which is a medium to high molecular weight AB block copolymer comprising an A block containing a specified polar group and a B block containing a polymer component of formula (I). ##STR1## wherein a.sup.1 and a2: hydrogen, halogen, a cyano group, a hydrocarbon group, --COOR.sup.4 or --COOR.sup.4 bonded via a hydrocarbon group (R.sup.4 : hydrocarbon group); and R.sup.3 : a hydrocarbon group.

摘要翻译： PCT No.PCT / JP92 / 01194 Sec。 371日期：1993年5月18日 102（e）日期1993年5月18日PCT PCT日期为1992年9月18日。具有改善的静电特性和成像性能并且特别是使用液体显影剂的高精度图像的再现性和成像性能优异的电子照相感光材料 在使用低功率的激光束的扫描曝光系统上。 电子照相感光材料包含作为粘合剂树脂的低分子量树脂（A），其包含键合有至少三个聚合物链的有机分子，每个聚合物链均含有式（I）的聚合物组分和具有指定的聚合物组分的聚合物组分 和含有特定极性基团的A嵌段和含有式（I）的聚合物成分的B嵌段的中高分子量AB嵌段共聚物的树脂（B）。 式（I）其中a1和a2：通过烃基键合的氢，卤素，氰基，烃基，-COOR4或-COOR4（R4：烃基）; 和R3：烃基。

公开(公告)号：US5338628A

公开(公告)日：1994-08-16

申请号：US945717

申请日：1992-09-15

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05 ,  G03G15/08

CPC分类号： G03G5/0592 ,  G03G5/0589

摘要： An electrophotographic light-sensitive material comprising a support having provided thereon at least one photoconductive layer containing an inorganic photoconductive substance, a spectral sensitizing dye and a binder resin, wherein the binder resin comprises at least one resin (A) and at least one resin (B) as described in the specification.

摘要翻译： 一种电子照相感光材料，包括其上设置有至少一个含有无机光电导性物质的感光层，光谱增感染料和粘合剂树脂的载体，其中粘合剂树脂包括至少一种树脂（A）和至少一种树脂（ B）。