Lithographic printing press and method for on-press imaging lithographic printing plate
    141.
    发明申请
    Lithographic printing press and method for on-press imaging lithographic printing plate 审中-公开
    平版印刷机和印刷成像平版印刷版的方法

    公开(公告)号:US20070095232A1

    公开(公告)日:2007-05-03

    申请号:US11599734

    申请日:2006-11-15

    Applicant: Gary Teng

    Inventor: Gary Teng

    Abstract: A lithographic printing press having a plate cylinder in a substantially light-tight compartment suitable for on-press imaging and developing a laser sensitive plate is described. The plate cylinder as well as certain other press parts is covered by non-transparent and/or safe-light-passing-only covers so that no or only limited amount of unsafe light passes onto the plate mounted on the plate cylinder during on-press imaging and development. The plate comprises on a substrate a photosensitive layer soluble or dispersible in ink and/or fountain solution and capable of hardening upon exposure to a laser having a wavelength selected from 200 to 1200 nm. The plate is on-press exposed with the laser, developed with ink and/or fountain solution, and then directly prints inked images to the receiving sheets.

    Abstract translation: 描述了一种平版印刷机,其具有适用于印刷成像和显影激光敏感板的基本上不透光的隔室中的印版滚筒。 印版滚筒以及某些其他印刷部件被不透明和/或安全光通过的盖覆盖,使得在印刷机中没有或仅有有限量的不安全光通过安装在印版滚筒上的印版 成像和发展。 该板在基材上包含可溶于或可分散在油墨和/或润版液中的感光层,并且能够在暴露于选自200至1200nm的波长的激光器时硬化。 该板用激光在本体上曝光,用油墨和/或润版液进行显影,然后将油墨图像直接打印到接收纸上。

    Method of making a lithographic printing plate precursor
    142.
    发明授权
    Method of making a lithographic printing plate precursor 有权
    制备平版印刷版前体的方法

    公开(公告)号:US07195859B2

    公开(公告)日:2007-03-27

    申请号:US10530130

    申请日:2003-09-12

    Inventor: Eric Verschueren

    Abstract: A method of making a heat-sensitive lithographic printing plate precursor is disclosed which comprises the steps of (i) providing a web of a lithographic support having a hydrophilic surface; (ii) applying on the hydrophilic surface of the web a coating comprising a phenolic resin; (iii) drying the coating by supplying heat to the coated web; (iv) a cooling step wherein the web temperature is reduced at an average cooling rate which is higher than if the web would be kept under ambient conditions but not higher than 30° C./s; and (v) winding the precursor on a core or cutting the precursor into sheets. The cooling step provides a significant improvement of the aging behavior of the precursor. A stable sensitivity is obtained shortly after coating.

    Abstract translation: 公开了一种制备热敏平版印刷版原版的方法,其包括以下步骤:(i)提供具有亲水表面的平版印刷载体的网; (ii)在纤维网的亲水表面上施加包含酚醛树脂的涂层; (iii)通过向所述涂布的织物提供热量来干燥所述涂层; (iv)冷却步骤,其中所述幅材温度以平均冷却速率降低,所述平均冷却速度高于所述幅材将保持在环境条件但不高于30℃/秒的情况; 和(v)将前体缠绕在芯上或将前体切割成片。 冷却步骤显着提高了前体的老化行为。 涂层后即可获得稳定的敏感性。

    Planographic printing plate precursor
    144.
    发明申请
    Planographic printing plate precursor 有权
    平版印刷版前体

    公开(公告)号:US20060068321A1

    公开(公告)日:2006-03-30

    申请号:US11231850

    申请日:2005-09-22

    Inventor: Akira Nagashima

    Abstract: The present invention provides a planographic printing plate precursor including a support and a positive recording layer formed on the support and containing: (A) a polymer having a structural unit represented by the following general formula (1), (B) a photo-thermal converting agent, and (C) an amino compound having a methylol group or an alkoxymethyl group; and a positive recording layer whose solubility in an alkaline developer is improved by exposure to light or by heating. In general formula (1), R1 represents an alkyl group or a cyclic group, x represents 0 or 1, and A represents a bivalent bonding group. According to the invention, a positive planographic printing plate precursor for use with infrared lasers having excellent chemical resistance and wide image development latitude can be obtained.

    Abstract translation: 本发明提供了一种平版印刷版原版,其包括形成在载体上的载体和正性记录层,并含有:(A)具有由以下通式(1)表示的结构单元的聚合物,(B)光热 转化剂,(C)具有羟甲基或烷氧基甲基的氨基化合物; 以及通过曝光或加热改善了在碱性显影剂中的溶解度的正性记录层。

    Plate-making system of light-sensitive lithographic printing plate and plate-making method
    145.
    发明授权
    Plate-making system of light-sensitive lithographic printing plate and plate-making method 有权
    光敏平版印刷版制版系统及制版方法

    公开(公告)号:US06935237B2

    公开(公告)日:2005-08-30

    申请号:US10419877

    申请日:2003-04-22

    Inventor: Tatsuji Higashi

    Abstract: A plate-making system, in which a light-sensitive lithographic printing plate carrying an interleaf paper superimposed thereon and/or an original plate for making a dummy plate carrying an interleaf paper superimposed thereon are processed in a plate-setter provided with an automatic interleaf paper-removing mechanism and an automatic developing machine, is characterized in that it comprises a means for detecting the presence of any interleaf paper on the lithographic printing plate and/or the original plate or a means for discriminating the interleaf paper, the light-sensitive lithographic printing plate and the original plate. A plate-making method of the invention is characterized by irradiating the interleaf paper, the lithographic printing plate and the original plate for making a dummy plate with sensor light rays after they are passed through the automatic interleaf paper-removing mechanism and determining the intensity of the light to thus detect any interleaf paper possibly present on the plates or discriminate the interleaf paper, the light-sensitive lithographic printing plate and the original plate for making a dummy plate from one another. The plate-making method permits the reliable detection of the presence of interleaf papers on light-sensitive lithographic printing plates and/or original plates for dummy plates and the plate-making operations can thus stably be carried out using a plate-setter and an automatic developing machine.

    Abstract translation: 制版系统,其中装载有叠印纸的感光平版印刷版和/或用于制造叠置在其上的插页纸的虚拟板的原版板在具有自动插页的印版机中进行处理 除纸机构和自动显影机,其特征在于,其包括用于检测在平版印刷版和/或原版上存在任何插页纸的装置或用于识别中间纸的装置,光敏感 平版印刷版和原版。 本发明的制版方法的特征在于,在穿过自动中间纸去除机构之后,对介质纸,平版印刷版和原版进行照射以制造具有传感器光线的虚拟板,并且确定 从而检测出可能存在于板上的任何插页纸,或者识别插页纸,感光平版印刷版和用于制造虚板的原版。 制版方法允许可靠地检测在感光平版印刷版和/或用于虚拟板的原版上的中间页纸的存在,并且因此可以使用印版机和自动化装置来稳定地进行制版操作 开发机器。

    Lithographic printing plate precursor
    146.
    发明授权
    Lithographic printing plate precursor 有权
    平版印刷版前体

    公开(公告)号:US06929895B2

    公开(公告)日:2005-08-16

    申请号:US10200447

    申请日:2002-07-23

    Abstract: A lithographic printing plate precursor comprising an aluminum substrate, an image-recording layer and a hydrophilic film, the aluminum substrate being subjected to an electrochemical surface-roughening treatment in an aqueous solution comprising hydrochloric acid and provided with the hydrophilic film having a heat conductivity of 0.05 to 0.5 W/mK and/or at least one of a density of 1,000 to 3,200 kg/m3 and a porosity of 20 to 70%; and a lithographic printing plate precursor comprising an aluminum substrate, an image-recording layer and a hydrophilic film, the aluminum substrate having a surface-roughened shape comprising a small pit wherein an average opening size of the small pit is 0.01 to 3 μm and a ratio of an average depth of the small pit to the average opening size is 0.1 to 0.5, and being provided with the hydrophilic film having a heat conductivity of 0.05 to 0.5 W/mK and/or at least one of a density of 1,000 to 3,200 kg/m3 and a porosity of 20 to 70%.

    Abstract translation: 包括铝基板,图像记录层和亲水膜的平版印刷版原版,所述铝基板在包含盐酸的水溶液中进行电化学表面粗糙化处理,并提供具有导热性的亲水膜 0.05〜0.5W / mK和/或密度为1000〜3200kg / m 3的孔隙率和20〜70%的孔隙率中的至少一种。 以及包含铝基板,图像记录层和亲水膜的平版印刷版原版,所述铝基板具有包括小坑的表面粗糙化形状,其中小坑的平均开口尺寸为0.01〜3μm, 小坑的平均深度与平均开口尺寸的比例为0.1〜0.5,并且具有导热率为0.05〜0.5W / m·K的亲水性膜和/或密度为1000〜3,200 kg / m 3,孔隙率为20〜70%。

    Stack of lithographic printing plate precursors
    147.
    发明申请
    Stack of lithographic printing plate precursors 审中-公开
    堆叠平版印刷版前体

    公开(公告)号:US20050172843A1

    公开(公告)日:2005-08-11

    申请号:US11047737

    申请日:2005-02-02

    Applicant: Norio Aoshima

    Inventor: Norio Aoshima

    Abstract: A stack of lithographic printing plate precursors, which comprises: at least one lithographic printing plate precursor comprising: an aluminum support having a roughened surface; and an image recording layer comprising (A) an infrared absorber, (B) a polymerization initiator and (C) a polymerizable compound, wherein the image recording layer is capable of being removed with at least one of a printing ink and a fountain solution; and an interleaving sheet interposed between a first one and a second one of said at least one lithographic printing plate precursor, wherein said at least one lithographic printing plate precursor has a dynamic friction coefficient between an outermost surface of said at least one lithographic printing plate precursor and the interleaving sheet of 0.25 to 0.70.

    Abstract translation: 一叠平版印刷版前体,其包括:至少一个平版印刷版前体,其包含:具有粗糙表面的铝载体; 以及图像记录层,其包含(A)红外线吸收剂,(B)聚合引发剂和(C)可聚合化合物,其中所述图像记录层能够利用印刷油墨和润版液中的至少一种去除; 以及插入在所述至少一个平版印刷版前体中的第一个和第二个平版印刷版前体之间的交错片,其中所述至少一个平版印刷版前体在所述至少一个平版印刷版前体的最外表面之间具有动摩擦系数 交错片为0.25〜0.70。

    Method for making lithographic printing plate
    150.
    发明授权
    Method for making lithographic printing plate 失效
    平版印刷版制作方法

    公开(公告)号:US06830874B2

    公开(公告)日:2004-12-14

    申请号:US10188079

    申请日:2002-07-03

    Abstract: A method for preparing a lithographic printing plate which comprises imagewise exposing to light a presensitized plate useful for making a lithographic printing plate having an intermediate layer and a photosensitive layer on an aluminum substrate in this order and developing the imagewise exposed plate with a developer, wherein said intermediate layer comprises a polymer compound comprising at least a structure unit having an acid group and a structure unit having an onium group and said developer comprises an inorganic alkali salt and a nonionic surfactant having polyoxyalkylene ether group and pH of the developer ranges from 11.0 to 12.7. The method provides a lithographic printing plate, which shows good contrast between an image area and non-image area, no background contamination during printing, good stability with time and good printing durability.

    Abstract translation: 一种制备平版印刷版的方法,该方法包括以下步骤:将具有中间层和感光层的平版印刷板依次成像曝光于光敏板上,所述平版印刷版在铝基板上依次显影,并用显影剂显影图像曝光板,其中 所述中间层包括至少包含具有酸基的结构单元和具有鎓基的结构单元的聚合物化合物,所述显影剂包含无机碱金属盐和具有聚氧化烯醚基团的非离子表面活性剂,显影剂的pH为11.0至 12.7。 该方法提供了平版印刷版,其在图像区域和非图像区域之间显示出良好的对比度,在印刷期间没有背景污染,具有良好的时间稳定性和良好的印刷耐久性。

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