公开(公告)号：US5945240A

公开(公告)日：1999-08-31

申请号：US775007

申请日：1996-12-27

申请人： Hiroshi Tashiro ,  Eiichi Kato

发明人： Hiroshi Tashiro ,  Eiichi Kato

IPC分类号： G03G5/05 ,  G03G5/08 ,  G03G5/10 ,  G03G13/28 ,  G03G5/087

CPC分类号： G03G13/28 ,  G03G5/0514 ,  G03G5/0517 ,  Y10T428/24413

摘要： A direct drawing type lithographic printing plate precursor comprising a water-resistant support and an image receiving layer provided thereon, wherein a surface of the water-resistant support has the Bekk smoothness in the range of from 900 to 3,000 (second/10 cc) and the image receiving layer contains zinc oxide, a binder resin and a water-soluble organic compound having at least one acidic group selected from --CO.sub.2 H, --SO.sub.3 H and --PO.sub.3 H.sub.2, which is capable of forming a chelate compound with zinc oxide or a zinc ion. The direct drawing type lithographic printing plate precursor provides a lithographic printing plate which produces prints having a clear image without stains even when it is subjected to electrostatic transfer of a toner image formed by an electrophotographic copying machine.

摘要翻译： 一种直接拉伸型平版印刷版原版，其特征在于，其上设置有防水支撑体和图像接收层，其中，所述防水支撑体的表面的Bekk平滑度在900〜3000（秒/ 10cc）的范围内， 图像接收层含有氧化锌，粘合剂树脂和具有至少一个选自-CO 2 H，-SO 3 H和-PO 3 H 2的酸性基团的水溶性有机化合物，其能够与氧化锌或锌离子形成螯合化合物 。 直接式平版印刷版原版提供了平版印刷版，即使在静电转印由电子照相复印机形成的调色剂图像的情况下，也能产生具有清晰图像的印刷品。

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：US5624777A

公开(公告)日：1997-04-29

申请号：US256558

申请日：1994-09-12

申请人： Eiichi Kato ,  Hiroshi Tashiro ,  Akio Oda ,  Kazuo Ishii

发明人： Eiichi Kato ,  Hiroshi Tashiro ,  Akio Oda ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0546 ,  G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic lithographic printing plate precursor having a photoconductive layer containing a resin which contains a functional group capable of forming --COOH group and a functional group capable of forming at least one group selected from --SO.sub.3 H group, --SO.sub.2 H group and --PO.sub.3 H group and which has a crosslinking structure.Owing to the specific polar group in the resin, a lithographic printing plate which is free from the occurrence of background stain and has excellent oil-desensitivity and high printing durability is provided.

摘要翻译： PCT No.PCT / JP93 / 00023 Sec。 371日期1994年9月12日 102（e）1994年9月12日PCT PCT 1993年1月11日PCT公布。 公开号WO93 / 14447 日本1993年7月22日具有含有含有能够形成-COOH基的官能团的树脂的光电导层和能够形成选自-SO 3 H基，-SO 2 H基中的至少一个基团的官能团的电子照相平版印刷版原版， -PO 3 H基团，其具有交联结构。 由于树脂中的特定的极性基团，提供了没有背景污点的发生并且具有优异的油分离性和高的印刷耐久性的平版印刷版。

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。

公开(公告)号：US5526102A

公开(公告)日：1996-06-11

申请号：US294600

申请日：1994-08-23

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03F3/10 ,  G03G7/00 ,  G03G13/01 ,  G03G15/14

CPC分类号： G03G7/0006 ,  G03F3/105 ,  G03G13/01

摘要： A method of forming a color image including the steps of forming at least one color toner image on an electrophotographic light-sensitive element whose surface has releasability by an electrophotographic process, transferring the toner image onto a primary receptor having a peelable transfer layer provided thereon, and then transferring the toner image together with the transfer layer from the primary receptor onto a receiving material.

摘要翻译： 一种形成彩色图像的方法，包括以下步骤：在电子照相感光元件上形成至少一个彩色调色剂图像，该电子照相感光元件的表面具有通过电子照相方法的剥离性，将调色剂图像转印到其上设置有可剥离转印层的初级接收器上， 然后将调色剂图像与转印层一起从初级接收器转印到接受材料上。

公开(公告)号：US5498503A

公开(公告)日：1996-03-12

申请号：US119220

申请日：1993-09-28

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： C08F293/00 ,  C08F297/02 ,  C08L53/00 ,  G03G5/05

CPC分类号： G03G5/0592 ,  C08F293/00 ,  C08F297/026 ,  C08L53/00 ,  G03G5/0589

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, at least one resin (A) which has a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and contains not less than 30% by weight of a polymer component of the formula (I) and from 0.5 to 15% by weight of a specified polar group-containing polymer component and at least one resin (B) which is an AB block copolymer having a weight average molecular weight of from 3.times.10.sup.4 to 1.times.10.sup.6 and comprising an A block containing a specified polar group-containing polymer component and a B block containing a polymer component of the formula (I). ##STR1## wherein a.sup.1 and a.sup.2 : 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： 具有改进的静电特性和成像性能的电子照相感光材料，特别是使用液体显影剂的高精度图像的再现性和使用低功率的激光的扫描曝光系统的图像形成性能优异的电子照相感光材料。 电子照相感光材料含有作为粘合剂树脂的至少一种重均分子量为1×10 3至2×10 4的至少一种树脂（A），并且含有不少于30重量％的式（I ）和0.5〜15重量％的特定的含极性基团的聚合物组分和至少一种树脂（B），其是重均分子量为3×10 4至1​​×10 6的AB嵌段共聚物，并且包含含有 指定的含极性基团的聚合物组分和含有式（I）的聚合物组分的B嵌段。 式（I）通过烃基（R4：烃基）键合的氰基，烃基，-COOR4或-COOR4，R3：烃基。