公开(公告)号：US6143806A

公开(公告)日：2000-11-07

申请号：US8544

申请日：1998-01-16

申请人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

发明人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

IPC分类号： C09D11/00 ,  C09D11/10 ,  C09D11/02 ,  C03G13/28

CPC分类号： C09D11/106 ,  C09D11/36

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 a water-resistant support having a lithographically printable hydrophilic surface to dropwise from a nozzle form an image, 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 at least miscible with the nonaqueous carrier liquid and becomes insoluble therein by polymerization; (ii) (ii-a) at least one monomer (B) represented having a specific substituent copolymerizable with the monomer (A), or (ii-b) at least one specific monofunctional macromonomer (MA) having a weight average molecular weight of 2.times.10.sup.4 or less; and (iii) at least one dispersion-stabilizing resin soluble in the nonaqueous solvent and having no graft group polymerizing with a monomer, and a method for preparing a printing plate by an ink jet process using the ink.

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 在具有由喷嘴形成的可平版印刷的亲水性表面的耐水支撑体上形成图像，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），其可溶于至少与非水性载体液体混溶并且通过聚合而不溶于其中的非水溶剂; （ii）（ii-a）表示具有可与单体（A）共聚的特定取代基的至少一种单体（B），或（ii-b）至少一种具有重均分子量的特定单官能大分子单体 2x104以下; 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，以及使用该油墨通过喷墨方法制备印版的方法。

公开(公告)号：US6098545A

公开(公告)日：2000-08-08

申请号：US215837

申请日：1998-12-17

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： B41C1/10 ,  C09D11/00 ,  C09D11/10

CPC分类号： C09D11/36 ,  B41C1/1066

摘要： An oil-based ink for the preparation of a printing plate by an ink jet process comprising dropwise Supplying an oil-based ink comprising 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 comprising a water-resistant support and the image-receiving layer provided thereon which contains zinc oxide and a binder resin and whose surface has a contact angle with water of 30 degrees or more to form an image and subjecting the non-image area of the image-receiving layer to oil-desensitization upon a chemical reaction treatment to prepare a lithographic printing plate wherein the resin particles dispersed are copolymer resin particles obtained by polymerization granulation of a solution of at least one monofunctional monomer, at least one monofunctional macromonomer and at least one resin for dispersion stabilization.

摘要翻译： 一种用于通过喷墨方法制备印刷版的油性油墨，包括：滴加含有分散在电阻为10 9Ω·cm以上，介电常数为3.5的非水载体液体中的树脂颗粒的油性油墨 以下的平版印刷版原版的图像接收层，其包含耐水支撑体和设置在其上的图像接收层，所述图像接收层包含氧化锌和粘合剂树脂，并且其表面与水的接触角为30度以上 以形成图像，并且通过化学反应处理对图像接收层的非图像区域进行脱油，以制备平版印刷版，其中分散的树脂颗粒是通过聚合造粒在 至少一种单官能单体，至少一种单官能大分子单体和至少一种用于分散体稳定化的树脂。

公开(公告)号：US06066424A

公开(公告)日：2000-05-23

申请号：US967200

申请日：1997-10-29

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G13/28 ,  G03G13/26

CPC分类号： G03G13/283

摘要： A method for preparation of a printing plate by an electrophotographic process comprising(i) a step of forming a toner image by an electrophotographic process on the surface of an electrophotographic light-sensitive element which surface has releasability,(ii) a step of transferring the toner image onto a primary receptor having provided thereon a peelable transfer layer which is mainly composed of a resin (A) capable of being removed upon a chemical reaction treatment,(iii) a step of transferring the toner image together with the transfer layer from the primary receptor 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(iv) a step of removing the transfer layer on the receiving material upon the chemical reaction treatment.The method can provide printing plates excellent in image qualities of plate-making and printing and continuously produce such printing plates in a stable manner for a long period of time.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括（i）通过电子照相法在表面具有可剥离性的电子照相感光元件的表面上形成调色剂图像的步骤，（ii）转印步骤 调色剂图像到主要受体上，其上设置有主要由能够在化学反应处理中除去的树脂（A）组成的可剥离转移层，（iii）将调色剂图像与转印层一起从 初级接收剂在其表面能够提供适合于印刷时的平版印刷的亲水性表面的接收材料上，以及（iv）在化学反应处理时除去接收材料上的转移层的步骤。 该方法可以提供制版和印刷图像质量优异的印刷版，并且以长时间稳定的方式连续生产这种印版。

公开(公告)号：US5965660A

公开(公告)日：1999-10-12

申请号：US828967

申请日：1997-03-27

申请人： Seishi Kasai ,  Ryosuke Itakura ,  Eiichi Kato

发明人： Seishi Kasai ,  Ryosuke Itakura ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G13/28 ,  C08L41/00

CPC分类号： G03G13/28 ,  B41N3/08

摘要： A desensitizing solution for lithography is disclosed which contains at least one member selected from acyclic amine and ammonium compounds each containing specific structures. The desensitizing solution does not cause environmental pollution, is stable to long-term storage, continuous use, and fluctuations in environmental conditions, is effective in reducing the time required for etching treatment, and has excellent desensitization performance.

摘要翻译： 公开了一种用于光刻的脱敏溶液，其包含至少一种选自各种含有特定结构的无环胺和铵化合物的成员。 脱敏溶液不会引起环境污染，对于长期储存，连续使用和环境条件的波动是稳定的，有效减少蚀刻处理所需的时间，并且具有优异的脱敏性能。

公开(公告)号：US5882828A

公开(公告)日：1999-03-16

申请号：US816654

申请日：1997-03-13

申请人： Eiichi Kato ,  Yusuke Nakazawa

发明人： Eiichi Kato ,  Yusuke Nakazawa

IPC分类号： G03G13/16 ,  G03G13/28 ,  G03G13/10

CPC分类号： G03G13/283 ,  G03G13/16

摘要： A method for preparation of a printing plate by an electrophotographic process comprising, in order, a) forming a toner image on an electrophotographic light-sensitive element having a release surface by an electrophotographic process using a liquid developer comprising a dispersion medium having dispersed therein toner grains each containing at least one resin (A) having a glass transition point of from 20.degree. C. to 80.degree. C. or a softening point of from 35.degree. C. to 100.degree. C. and at least one resin (B) having a glass transition point or a softening point at least 2.degree. C. lower than that of the resin (A), b) drying the toner image to remove the dispersion medium thereby causing at least partial adhesion between the toner grains, c) bringing the toner image into contact with an intermediate transfer medium having a surface adhesion force of not less than 3 gram.multidot.force at temperature (T.sub.1) and not more than 40 gram.multidot.force at temperature (T.sub.2), at the temperature (T.sub.1) to transfer the toner image onto the intermediate transfer medium, and d) bringing the toner image into contact with a final receiving material having a surface capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing at the temperature (T.sub.2) higher than the temperature (T.sub.1 to transfer the toner image onto the final receiving material. According to the method of the present invention, the toner image formed from a liquid developer is transferred with good efficiency onto the final receiving material through the intermediate transfer medium, and the printing plate obtained provides a large number of prints having highly accurate images free from background stain. An apparatus suitable for conducting the 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，其包括以下步骤：a）通过电子照相方法在具有剥离表面的电子照相感光元件上形成调色剂图像，所述液体显影剂包括分散介质，分散介质中分散有调色剂 每个含有至少一种玻璃化转变点为20℃至80℃或软化点为35℃至100℃的树脂（A）的颗粒和至少一种树脂（B），其具有 玻璃化转变点或软化点比树脂（A）低至少2℃，b）干燥调色剂图像以除去分散介质，从而导致调色剂颗粒之间的至少部分粘合，c）使 调色剂图像在温度（T1）下具有不小于3克力的表面粘附力和在温度（T2）下不超过40克力的中间转印介质在温度（T1）下接触以转印调色剂 图像到中间转印介质上，以及d）使得调色剂图像与最终的接收材料接触，该最终接收材料具有能够在高于温度（T2）的温度（T2）下印刷时适于平版印刷的亲水表面的表面， T1将调色剂图像转印到最终的接收材料上。 根据本发明的方法，由液体显影剂形成的调色剂图像通过中间转印介质以良好的效率转印到最终的接受材料上，并且所获得的印刷版提供大量的具有高精度图像的印刷品 背景污点。 还公开了适用于进行该方法的装置。

公开(公告)号：US5714289A

公开(公告)日：1998-02-03

申请号：US457604

申请日：1995-06-01

申请人： Eiichi Kato ,  Sadao Osawa ,  Seishi Kasai

发明人： Eiichi Kato ,  Sadao Osawa ,  Seishi Kasai

IPC分类号： G03G5/147 ,  G03G13/28

CPC分类号： G03G13/283 ,  G03G5/14786

摘要： A method for preparation of an electrophotographic printing plate which can provide a printing plate excellent in image qualities of plate-making and printing, and continuously produce such printing plates in a stable manner for a long period of time and which is suitable for a scanning exposure system using a laser beam. The method comprises forming a toner image by an electrophotographic process on a peelable transfer layer of an electrophotographic light-sensitive material which comprises an electrophotographic light-sensitive element a surface of which has releasability and the peelable transfer layer provided on the surface thereof which contains a thermoplastic resin capable of being removed upon a chemical reaction treatment, thermally transferring the toner image together with the transfer layer onto a support for a lithographic printing plate and removing the thermoplastic resin upon a treatment, for example, with an aqueous alkaline solution, whereby a printing plate is obtained.

摘要翻译： 一种电子照相印版的制备方法，其可以提供制版和印刷图像质量优异的印刷版，并且以长时间稳定的方式连续生产这种印版，并且适合于扫描曝光 系统使用激光束。 该方法包括通过电子照相方法在电子照相感光材料的可剥离转印层上形成调色剂图像，该电子照相感光材料的表面具有可释放性的电子照相感光元件和其表面上设置的可剥离转印层，其含有 能够在化学反应处理时被去除的热塑性树脂，将调色剂图像与转印层一起热转印到平版印刷版的载体上，并且例如用碱性水溶液处理除去热塑性树脂，由此 得到印版。

公开(公告)号：US5677098A

公开(公告)日：1997-10-14

申请号：US578949

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： G03G5/06 ,  G03G5/09 ,  G03G5/10

CPC分类号： G03G5/0674 ,  G03G5/067 ,  G03G5/09 ,  Y10S430/146

摘要： A method for forming an image using beam exposure of an electrophotosensitive material comprising an electrically conductive support having thereon an electrophotosensitive layer containing an inorganic photoconductor, a chemical sensitizer, a spectral sensitizing dye and a binder resin, wherein the spectral sensitizing dye is at least one dye selected from the compounds represented by formulae (I) and (II) defined in the disclosure and the surface of the electrically conductive support on the side of the electrophotosensitive layer has a BEKK smoothness of 300 sec/10 cc or more.

摘要翻译： 一种使用光电敏感材料的光束曝光来形成图像的方法，该光电敏感材料包括其上具有含有无机光电导体，化学增感剂，光谱增感染料和粘合剂树脂的光敏层的导电载体，其中光谱增感染料是至少一种 选自本公开中限定的由式（I）和（II）表示的化合物的染料和在电光敏层一侧的导电载体的表面的BEKK平滑度为300秒/ 10cc以上。

公开(公告)号：US5626996A

公开(公告)日：1997-05-06

申请号：US376630

申请日：1995-01-23

申请人： Eiichi Kato ,  Sadao Osawa

发明人： Eiichi Kato ,  Sadao Osawa

IPC分类号： G03F3/10 ,  G03G5/05 ,  G03G5/147 ,  G03G13/01 ,  G03G5/04

CPC分类号： G03G13/01 ,  G03F3/105 ,  G03G5/0589 ,  G03G5/0592 ,  G03G5/147

摘要： An electrophotographic material for color proofing which comprises a substrate, a photoconductive layer and a transfer layer in this order, wherein said photoconductive layer comprises a polymer (P) which contains at least one polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and at least one polymer segment (Y) containing units having photosetting and/or thermosetting group(s); a polymer (Q) which contains units represented by the formula I--CH(a.sub.1)--C(a.sub.2)(COOR.sub.3)--wherein a.sub.1 and a.sub.2 each independently represent a hydrogen atom, and R.sub.3 represents a hydrocarbon group; and contains at least one polar group such as --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH; and a polymer (R) containing at least one unit having photo and/or thermosetting group(s),the polymer (P) is present at least in the region near the surface facing said transfer layer, andthe surface of said photoconductive layer which contacts with the transfer layer has tack strength of not more than 150 gram.multidot.force.

摘要翻译： 一种用于彩色打印的电子照相材料，其依次包括基底，光电导层和转印层，其中所述光电导层包含含有至少一个含有不少于50重量％的聚合物链段（X）的聚合物（P） 的具有氟原子和/或硅原子的单元和至少一个含有具有光固化和/或热固性基团的单元的聚合物链段（Y）; 含有由式I-CH（a1）-C（a2）（COOR3）表示的单元的聚合物（Q） - 其中a1和a2各自独立地表示氢原子，R3表示烃基; 并含有至少一个极性基团，例如-PO 3 H 2，-SO 3 H，-COOH; 和含有至少一个具有光和/或热固性基团的单元的聚合物（R），聚合物（P）至少存在于靠近面向所述转移层的表面的区域中，并且所述光电导层的表面 与转印层的接触粘合强度不超过150克力。

公开(公告)号：US5589308A

公开(公告)日：1996-12-31

申请号：US492701

申请日：1995-06-20

申请人： Eiichi Kato ,  Makoto Momota ,  Hiroyuki Ohishi

发明人： Eiichi Kato ,  Makoto Momota ,  Hiroyuki Ohishi

IPC分类号： G03G5/05 ,  G03G13/28 ,  G03G13/32

CPC分类号： G03G13/283 ,  G03G5/0592

摘要： A method for preparation of a printing plate by an electrophotographic process comprising forming a peelable transfer layer capable of being removed upon a chemical reaction treatment on a surface of an electrophotographic light-sensitive element, forming a toner image by an electrophotographic process on the transfer layer, heat-transferring the toner image together with the transfer layer onto a receiving material having a surface 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 the transfer layer has a stratified structure composed of a first transfer layer (T.sub.1) which is contact with the surface of electrophotographic light-sensitive element and is formed by an electrodeposition coating method using thermoplastic resin grains (AL) each containing a rein (A.sub.1) having a glass transition point of from 10.degree. C. to 140.degree. C. or a softening point of from 35.degree. C. to 180.degree. C. and a resin (A.sub.2) having a glass transition point of not more than 45.degree. C. or a softening point of not more than 60.degree. C. wherein the glass transition point or softening point of resin (A.sub.1) is at least 2.degree. C. higher than that of resin (A.sub.2) and a second transfer layer (T.sub.2) provided thereon mainly containing a resin (A.sub.2).The transfer layer according to the present invention has excellent transferability onto a receiving material under transfer conditions of low temperature and high speed to form transferred images of good qualities thereby providing a printing plate which produces prints of good image qualities.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括在电子照相感光元件的表面上形成能够被去除的可剥离转印层，通过电子照相法在转印层上形成调色剂图像 ，将调色剂图像与转印层一起转印到具有能够在印刷时提供适于平版印刷的亲水表面的表面的接收材料上，以及在化学反应处理时去除接收材料上的转印层，其中 转印层具有由与电子照相感光元件的表面接触的第一转印层（T1）构成的分层结构，并且通过使用热塑性树脂颗粒（AL）的电沉积涂布法形成，每个含有包含（A1） 具有10℃至140℃的玻璃化转变点 从35℃到180℃的熔点和玻璃化转变温度不超过45℃或软化点不超过60℃的树脂（A2），其中玻璃化转变点或 树脂（A1）的软化点比树脂（A2）的软化点高2℃以上，主要含有树脂（A2）的第2转印层（T2）。 根据本发明的转印层在低温高速转印条件下在接收材料上具有优异的转印性，从而形成质量好的转印图像，从而提供产生良好图像质量的印刷品的印版。

公开(公告)号：US5582943A

公开(公告)日：1996-12-10

申请号：US217060

申请日：1994-03-24

申请人： Eiichi Kato ,  Yusuke Nakazawa ,  Sadao Osawa

发明人： Eiichi Kato ,  Yusuke Nakazawa ,  Sadao Osawa

IPC分类号： G03G5/02 ,  G03G5/147 ,  G03G7/00

CPC分类号： G03G5/14795 ,  G03G5/02 ,  G03G5/147 ,  G03G7/00 ,  G03G7/0093

摘要： A method of forming an electrophotographic color transfer image comprising forming at least one color toner image on a transfer layer provided on the surface of an electrophotographic light-sensitive element by an electrophotographic process and heat-transferring the toner image together with the transfer layer onto a receiving material wherein the surface of the electrophotographic light-sensitive element has an adhesive strength of not more than 200 gram.force, which is measured according to JIS Z 0237-1980 "Testing methods of pressure sensitive adhesive tapes and sheets" and the transfer layer mainly contains a thermoplastic resin (AH) having a glass transition point of not more than 140.degree. C. or a softening point of not more than 180.degree. C. and a thermoplastic resin (AL) having a glass transition point of not more than 45.degree. C. or a softening point of not more than 60.degree. C. in which a difference in the glass transition point or softening point between the resin (AH) and the resin (AL) is at least 2.degree. C.The method is excellent in obtaining color duplicates having good image quality without color shear and good storage stability at a low cost. An electrophotographic light-sensitive material suitable for use in the method is also described.

摘要翻译： 一种形成电子照相彩色转印图像的方法，包括通过电子照相方法在设置在电子照相感光元件的表面上的转印层上形成至少一种彩色调色剂图像，并将调色剂图像与转印层一起热转印到 接收材料，其中电子照相感光元件的表面具有不超过200克力的粘合强度，其根据JIS Z 0237-1980“压敏粘合带和片材的测试方法”和转印层 主要含有玻璃化转变点不超过140℃或软化点不超过180℃的热塑性树脂（AH）和玻璃化转变点不大于45的热塑性树脂（AL） ℃或软化点不超过60℃，其中树脂（AH）和树脂之间的玻璃化转变点或软化点的差异 n（AL）至少为2℃。该方法在低颜色下获得具有良好的图像质量而无色剪切和良好储存稳定性的颜色复制品。 还描述了适用于该方法的电子照相感光材料。