公开(公告)号：US5652076A

公开(公告)日：1997-07-29

申请号：US660129

申请日：1996-06-07

申请人： Eiichi Kato ,  Hiroyuki Oishi ,  Kazuo Ishii

发明人： Eiichi Kato ,  Hiroyuki Oishi ,  Kazuo Ishii

IPC分类号： G03G5/05 ,  G03G13/28 ,  G03G13/16

CPC分类号： G03G5/0592 ,  G03G13/283 ,  G03G5/0589

摘要： A method for preparation of a printing plate by an electrophotographic process comprising providing a peelable transfer layer (T) containing a resin (A) capable of being removed upon a chemical reaction treatment on an electrophotographic light-sensitive element, forming a toner image on the transfer layer by an electrophotographic process, providing an adhesive layer (M) containing a thermoplastic resin (B) only on the toner image, transferring the toner image together with the transfer layer (T) and the adhesive layer (M) from the electrophotographic light-sensitive element to a receiving material having a surface capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing, and then removing the transfer layer (T) on the receiving material by the chemical reaction treatment.According to the method, printing plates which produces prints of good image qualities can be continuously obtained in a stable manner for a long period of time even when the transfer is conducted under conditions of low temperature, low pressure and high speed.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括提供含有可在电子照相感光元件进行化学反应处理时能除去的树脂（A）的可剥离转印层（T），在 通过电子照相方法转印层，仅在调色剂图像上提供含有热塑性树脂（B）的粘合剂层（M），将调色剂图像与转印层（T）和粘合剂层（M）一起从电子照相光转印 具有能够提供在印刷时适合于平版印刷的亲水性表面的表面的接收材料的敏感元件，然后通过化学反应处理除去接收材料上的转印层（T）。 根据该方法，即使在低温，低压和高速的条件下进行转印，也可以长时间稳定地连续地获得产生良好图像质量的印刷品的印版。

公开(公告)号：US5620822A

公开(公告)日：1997-04-15

申请号：US262029

申请日：1994-06-17

申请人： Eiichi Kato ,  Yusuke Nakazawa ,  Sadao Osawa

发明人： Eiichi Kato ,  Yusuke Nakazawa ,  Sadao Osawa

IPC分类号： G03G13/28 ,  G03G13/22

CPC分类号： G03G13/28

摘要： A method for preparation of a printing plate by an electrophotographic process comprising forming a peelable transfer layer mainly containing a resin (A) capable of being removed upon a chemical reaction treatment on the surface of an electrophotographic light-sensitive element, forming a toner image on the transfer layer by an electrophotographic process, heat-transferring the toner image together with the transfer layer onto a receiving material a surface of which is capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing, and removing the transfer layer on the receiving material upon the chemical reaction treatment, wherein prior to or simultaneously with the formation of transfer layer a compound (S) which contains a fluorine atom and/or silicon atom is applied to the surface of electrophotographic light-sensitive element to improve releasability of the surface of electrophotographic light-sensitive element.The method continuously provides printing plates excellent in image qualities in a stable manner and is suitable for a scanning exposure system using a laser beam.An apparatus suitable for performing the present method is also disclosed.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括形成主要包含在电子照相感光元件的表面上进行化学反应处理能够除去的树脂（A）的可剥离转印层，形成调色剂图像 通过电子照相方法将转印层与转印层一起热转印到其表面上的能够提供适合于印刷时的平版印刷的亲水表面的接收材料上，并且将转印层除去 在化学反应处理时的接收材料，其中在形成转移层之前或同时形成含有氟原子和/或硅原子的化合物（S）施加到电子照相感光元件的表面上，以提高 电子照相感光元件的表面。 该方法以稳定的方式连续提供图像质量优异的印刷版，并且适用于使用激光束的扫描曝光系统。 还公开了适用于执行本方法的装置。

公开(公告)号：US5607533A

公开(公告)日：1997-03-04

申请号：US457461

申请日：1995-06-01

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G13/16 ,  G03G13/28 ,  B44C1/165

CPC分类号： G03G13/16 ,  G03G13/283

摘要： Disclosed is a method for preparation of a printing plate by an electrophotographic process comprising forming a toner image on an electrophotographic light-sensitive element by an electrophotographic process. A peelable transfer layer is provided mainly containing a resin (A) capable of being removed upon a chemical reaction treatment on the toner image. The toner image is transferred together with the transfer layer onto a primary receptor. The toner image together with the transfer layer is then transferred from the primary receptor onto a receiving material having a surface which is capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing. The transfer layer on the receiving material is removed by the chemical reaction treatment.

摘要翻译： 公开了一种通过电子照相方法制备印版的方法，包括通过电子照相方法在电子照相感光元件上形成调色剂图像。 主要提供一种可剥离的转印层，其中包含能够在对调色剂图像进行化学反应处理时能够除去的树脂（A）。 调色剂图像与转移层一起转移到主受体上。 然后将调色剂图像与转印层一起从初级接收器转移到具有能够在印刷时适于平版印刷的亲水表面的表面的接收材料上。 通过化学反应处理除去接收材料上的转移层。

公开(公告)号：US5565290A

公开(公告)日：1996-10-15

申请号：US920862

申请日：1992-07-28

申请人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

发明人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G9/00

CPC分类号： B41N3/08

摘要： An amine compound-containing, but cyanogen-free, desensitizing solution for offset printing, characterized by containing phytic acid (inositol hexaphosphate) and/or a metal and/or ammonium salts of phytic acid, and at least one selected from the group consisting of amine compounds represented by the following general formulae (1) and (2); a carboxylic acid or carboxylate containing (3); an urea (5) and/or an urethane (6) containing (4); an amide compound represented by (8) and/or an imide compound (9), each containing an amino group (7); and a heterocyclic compound at least one nitrogen atom and having an inorganic/organic value of 0.1 to 4.0 inclusive. ##STR1##

摘要翻译： 一种含胺化合物的，但不含氰的，用于胶版印刷的脱敏溶液，其特征在于含有植酸（肌醇六磷酸）和/或植酸的金属和/或铵盐，以及选自以下的至少一种： 由以下通式（1）和（2）表示的胺化合物： 含有（3）的羧酸或羧酸酯; 含有（4）的尿素（5）和/或氨基甲酸酯（6）; 由（8）表示的酰胺化合物和/或酰亚胺化合物（9），各自含有氨基（7）; 和至少一个氮原子的杂环化合物，其无机/有机物含量为0.1〜4.0。 （1）R4NH2（2）（3）（4）（5）（6）

公开(公告)号：US5409795A

公开(公告)日：1995-04-25

申请号：US158588

申请日：1993-11-29

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： C08F2/08 ,  C08F2/44 ,  C08F2/48 ,  C08F291/00 ,  G03G9/13 ,  G03G9/135

CPC分类号： G03G9/133 ,  C08F2/48

摘要： A process of producing a nonaqueous resin dispersion, particularly useful for a liquid developer in electrostatic photographic, which comprises subjecting to photopolymerization a system containing at least a monomer (A) having one polymerizable double bond, which is soluble in a nonaqueous solvent but becomes insoluble upon polymerization thereof, and at least a dispersion stabilizing resin (P) which is a polymer having a weight average molecular weight of from 1.times.10.sup.4 to 1.times.10.sup.6 and containing a specific repeating unit represented by formula (I) in an amount of at least 50% by weight based on the weight of the polymer and has a specific functional group represented by formula (II) bonded to the side chain of the polymer and/or only one terminal of the main chain of the polymer, the photopolymerization reaction being carried out in the nonaqueous solvent by irradiating the system with ultraviolet rays having a wavelength of not longer than 400 n.m.: ##STR1##

摘要翻译： 一种特别可用于静电照相液体显影剂的非水树脂分散体的方法，其包括使至少含有一个可聚合双键的单体（A）的系统进行光聚合，所述单体（A）可溶于非水溶剂但不溶于 至少一种分散稳定树脂（P），它是重均分子量为1×10 4至1​​×10 6的聚合物，并且含有式（I）表示的特定重复单元的量至少为50％ 以聚合物的重量为基准，并具有与聚合物的侧链键合的式（II）表示的特定官能团和/或仅聚合物主链的一个末端，光聚合反应在 （II）的紫外线照射系统的非水溶剂。

公开(公告)号：US5308730A

公开(公告)日：1994-05-03

申请号：US966347

申请日：1992-10-26

申请人： Nobuo Suzuki ,  Yutaka Sakasai ,  Seiji Horie ,  Eiichi Kato

发明人： Nobuo Suzuki ,  Yutaka Sakasai ,  Seiji Horie ,  Eiichi Kato

IPC分类号： G03G9/13 ,  G03G9/135

CPC分类号： G03G9/131

摘要： There is disclosed a liquid developer composition for electrostatic photography, which comprises, in a nonaqueous solvent having an electric resistance of 10.sup.9 .OMEGA..cm or over and a dielectric constant of 3.5 or over, a toner particle, a charge-controlling agent or resin, and an acid group containing polymer soluble in said nonaqueous solvent and/or a quaternary ammonium salt.

摘要翻译： 公开了一种静电摄影用液体显影剂组合物，其特征在于，在电阻为10欧姆·厘米或以上，介电常数为3.5以上的非水溶剂中，调色剂颗粒，电荷控制剂或树脂， 和可溶于所述非水溶剂和/或季铵盐的含酸基的聚合物。

公开(公告)号：US5294507A

公开(公告)日：1994-03-15

申请号：US990338

申请日：1992-12-14

申请人： Eiichi Kato ,  Seishi Kasai

发明人： Eiichi Kato ,  Seishi Kasai

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

CPC分类号： G03G5/0596 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor having a photoconductive layer containing resin (A) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and containing a polymer component of the specified repeating unit and a polymer component having a polar group and dispersed resin grain (L) which is obtained by dispersion polymerization of monomer (C) containing a functional group capable of forming at least one group selected from a thiol group, a sulfo group, an amino group and a ##STR1## group upon decomposition in the presence of a dispersion stabilizing resin soluble in a non-aqueous solvent and which has a silicon and/or fluorine atom-containing substituent.The electrophotographic lithographic printing plate precursor has good electrophotographic characteristics and water retentivity due to the suitable interaction between zinc oxide, a spectral sensitizing dye, the resin (A) and the dispersed resin grain (L).

摘要翻译： 一种电子照相平版印刷版原版，其具有含有重均分子量为1×10 3〜2×10 4的含有树脂（A）的光电导层，并含有特定重复单元的聚合物组分和具有极性基团的聚合物组分并分散 通过含有能够形成选自硫醇基，磺基，氨基和（*化学结构*）中的至少一个基团的官能团的单体（C）的分散聚合获得的树脂颗粒（L） 在可溶于非水溶剂中并具有含硅和/或氟原子的取代基的分散体稳定树脂存在下分解。 由于氧化锌，光谱增感染料，树脂（A）和分散的树脂颗粒（L）之间的适当相互作用，电子照相平版印刷版原版具有良好的电子照相特性和保水性。

公开(公告)号：US5250376A

公开(公告)日：1993-10-05

申请号：US943520

申请日：1992-09-11

申请人： Eiichi Kato ,  Akio Oda ,  Hiroshi Tashiro

发明人： Eiichi Kato ,  Akio Oda ,  Hiroshi Tashiro

IPC分类号： G03G5/05 ,  G03G13/28 ,  G03G5/087

CPC分类号： G03G13/28 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate, in which the effect by the hydrophilic property of non-image areas is further improved, and which is stable during storage even under very severe conditions and capable of readily realizing the hydrophilic property in a short time during processing of rendering hydrophilic is provided by a process for the production of an electrophotographic lithographic printing plate, comprising subjecting an electrophotographic photoreceptor to imagewise exposure and forming a toner image, the electrophotographic photoreceptor comprising an electroconductive support having provided thereon at least one photoconductive layer containing photoconductive inorganic compound and a binder resin, the binder resin comprising at least one resin (P) as defined herein, and optionally at least one crosslinking agent, and then subjecting a non-image area of the photoconductive layer to an oil-desensitizing processing with a processing solution containing a hydrophilic compound containing a substituent having a Pearson's nucleophilic constant n of at least 5.5.

摘要翻译： 一种电子照相平版印刷版，其中非图像区域的亲水性的作用进一步提高，即使在非常苛刻的条件下也能在保存期间稳定，并且能够在加工过程中在短时间内容易地实现亲水性 通过生产电子照相平版印刷版的方法提供亲水性，其包括使电子照相感光体经受成像曝光并形成调色剂图像，所述电子照相感光体包含导电载体，所述导电载体上设置有至少一个含有光电导无机化合物的光电导层和 粘合剂树脂，包含至少一种如本文所定义的树脂（P）的粘合剂树脂和任选的至少一种交联剂，然后用含有以下物质的处理溶液对光电导层的非图像区域进行脱油处理 一个水电 含有具有至少5.5的皮尔逊亲核常数n的取代基的亲液性化合物。

公开(公告)号：US5229236A

公开(公告)日：1993-07-20

申请号：US725091

申请日：1991-07-03

申请人： Eiichi Kato ,  Kazuo Ishii ,  Seishi Kasai ,  Hirohisa Yamasaki

发明人： Eiichi Kato ,  Kazuo Ishii ,  Seishi Kasai ,  Hirohisa Yamasaki

IPC分类号： G03G5/05

CPC分类号： G03G5/0596 ,  G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic lithographic printing plate precursor having a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide and a binder resin, wherein the photoconductive layer contains at least one of the following non-aqueous solvent-dispersed resin grains having an average grain diameter of same as or smaller than the maximum grain diameter of the photoconductive zinc oxide grains: wherein the non-aqueous solvent-dispersed resin grains comprise copolymer resin grains obtained by (i) subjecting to a polymerization reaction in a non-aqueous solvent, a monofunctional monomer (A) being soluble in the non-aqueous solvent but insoluble after polymerization and containing at least one polar group, as described herein, and a monofunctional polymer [M] comprising a polymer principal chain containing at least recurring units each containing a silicon atom and/or fluorine atom-containing substituent, to only one end of which a polymerizable double bond group represented by the following general formula (I), as described herein, is bonded; or (2) subjecting to a dispersion polymerization reaction in a non-aqueous solvent in the presence of a dispersion stabilizing resin soluble in the non-aqueous solvent, a monofunctional monomer (A) being soluble in the non-aqueous solvent but insoluble after polymerization and containing at least one polar group, as described herein, and a monofunctional monomer [B] being copolymerizable with the monofunctional monomer (A) and having a silicon atom and/or fluorine atom-containing substituent.

公开(公告)号：US5206104A

公开(公告)日：1993-04-27

申请号：US655608

申请日：1991-02-15

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G5/05

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 and a binder resin, wherein the binder resin comprises at least one resin (A) or (A') and at least one resin (B) as described above. The electrophotographic light-sensitive material according to the present invention is excellent in electrostatic characteristics, moisture resistance and durability.

摘要翻译： 一种电子照相感光材料，包括其上提供有至少一个含有无机光电导物质和粘合剂树脂的光电导层的载体，其中粘合剂树脂包含至少一种树脂（A）或（A'）和至少一种树脂（ B）。 本发明的电子照相感光材料的静电特性，耐湿性和耐久性优异。