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    Planographic printing original plate
    192.
    发明授权
    Planographic printing original plate 有权
    平版印刷原版

    公开(公告)号：US06440633B1

    公开(公告)日：2002-08-27

    申请号：US09412751

    申请日：1999-10-05

    Applicant: Ikuo Kawauchi

    Inventor： Ikuo Kawauchi

    IPC: G03F711

    CPC classification number: B41C1/1016 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  G03F7/11 ,  Y10S430/165

    Abstract: A planographic printing original plate which comprises an intermediate layer which contains a polymer including, as a monomer unit, at least a monomer having an acid group and a monomer having an onium group; and a photosensitive layer comprised of a positive-type photosensitive composition for an infrared laser which contains: (A) at least an alkali-soluble polymeric compound; (B) a compound which has a function to deteriorate the solubility of the alkali-soluble polymeric compound in an alkaline aqueous solution due to compatibility with the alkali-soluble polymeric compound, the function being deteriorated by compound (B) being heated; and (C) a compound which generates heat by absorbing light, the intermediate layer and the photosensitive layer being formed sequentially on a support which has been subjected to a hydrophilizing treatment.

    Abstract translation: 平版印刷原版，其包含含有聚合物的中间层，所述聚合物包含作为单体单元的至少一种具有酸基的单体和具有鎓基的单体; 和由用于红外激光的正型光敏组合物组成的感光层，其包含：（A）至少一种碱溶性聚合物; （B）由于与碱溶性高分子化合物的相溶性而使碱溶性高分子化合物在碱性水溶液中的溶解性劣化的化合物，被化合物（B）加热而劣化的功能; 和（C）通过吸收光产生热量的化合物，中间层和感光层依次形成在经过亲水化处理的载体上。

    On-press exposure and on-press processing of a lithographic material
    193.
    发明申请
    On-press exposure and on-press processing of a lithographic material 失效
    压制曝光和平版印刷材料的印刷加工

    公开(公告)号：US20020112629A1

    公开(公告)日：2002-08-22

    申请号：US10068017

    申请日：2002-02-05

    Applicant: AGFA-GEVAERT

    Inventor： Joseph Vander Aa ,  Joan Vermeersch

    IPC: B41F001/18 ,  B41F007/00

    CPC classification number: B41C1/1075 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/08 ,  B41C2210/16 ,  B41C2210/22 ,  B41C2210/24

    Abstract: A method of lithographic printing is disclosed which comprises the steps of unwinding a web of an imaging material from a supply spool, the imaging material comprising (1) a flexible lithographic base having a hydrophilic surface and (2) an image-recording layer which is removable in a single-fluid ink or can be rendered removable in a single-fluid ink by exposure to heat or light, wrapping the imaging material around a cylinder of a printing press, image-wise exposing the image-recording layer to heat or light, processing the image-recording layer by supplying single-fluid ink, thereby obtaining a printing master, printing by supplying single-fluid ink to the printing master which is mounted on a plate cylinder of the printing press, removing the printing master from the plate cylinder, preferably by winding up on an uptake spool. Since the image-recording layer can be processed by single-fluid ink, the imaging material is suitable for on-press processing in printing presses wherein no fountain solution is supplied to the plate. The method allows a rapid, fully automatic plate change with reduced press down time.

    Abstract translation: 公开了一种平版印刷方法，其包括以下步骤：从供应卷轴开卷成像材料的卷材，所述成像材料包括（1）具有亲水表面的柔性平版印刷基底和（2）图像记录层， 可以在单流体墨水中移除，或者可以通过暴露于热或光而在单流体墨水中可移除，将成像材料包裹在印刷机的圆筒上，以图像方式将图像记录层暴露于热或光 通过供应单流体油墨来处理图像记录层，从而获得印刷母版，通过向安装在印刷机的印版滚筒上的印刷母版提供单一流体油墨进行印刷，从印版移除印刷母版 圆柱体，优选通过卷绕在摄影卷轴上。 由于图像记录层可以通过单流体油墨进行处理，所以成像材料适用于印刷机中的印刷加工，其中没有向板提供润版液。 该方法允许快速，全自动的板更换，减少压下时间。

    Polyvinyl acetals having azido groups and use thereof in radiation-sensitive compositions
    195.
    发明申请
    Polyvinyl acetals having azido groups and use thereof in radiation-sensitive compositions 失效
    具有叠氮基的聚乙烯醇缩醛及其在辐射敏感组合物中的应用

    公开(公告)号：US20020090566A1

    公开(公告)日：2002-07-11

    申请号：US09751183

    申请日：2000-12-29

    Applicant: Kodak Polychrome Graphics LLC.

    Inventor： Hans-Joachim Timpe ,  Ursula Muller

    IPC: G03F007/038

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/24 ,  Y10S430/106 ,  Y10S430/107 ,  Y10S430/108 ,  Y10S430/11 ,  Y10S430/111 ,  Y10S430/145

    Abstract: A polyvinyl acetal copolymer compound comprises the units A, B, C and D, wherein A is present in an amount of 0.5 to 30 wt.-% and is of the formula 1 wherein R is hydrogen, C1-C6 alkyl, nullCHnullCHCOOH or 2 B is present in an amount of 5 to 35 wt.-% and is of the formula 3 C is present in an amount of 10 to 55 wt.-% and is of the formula 4 wherein R1 is an alkyl group with up to 4 carbons, which is optionally substituted by an acid group, or a phenyl group to which an acid group is attached, wherein the phenyl group optionally comprises 1 to 2 further substituents selected from halogen atoms, amino, methoxy, ethoxy, methyl and ethyl groups, or is a group ZnullNR2nullCOnullYnullCOOH, wherein Z is an aliphatic, aromatic or araliphatic spacer group, R2 is hydrogen or an aliphatic, aromatic or araliphatic moiety and Y is a saturated or unsaturated chain- or ring-shaped spacer group, and unit C may have one or more occurrences in the copolymer with various moieties R1 independent of one another; and D is present in an amount of 10 to 40 wt.-% and is of the formula 5 wherein X is C1-C6 alkylene, a 5 or 6 membered saturated carbocyclic moiety optionally substituted with one or more substituents selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy or halogen, a 5 or 6 membered saturated heterocyclic moiety which comprises in the nucleus one or more heteroatoms selected from oxygen, nitrogen and sulfur, or a group of the formula I 6 wherein n is an integer from 0 to 4 and each R3 is independently selected from the group consisting of C1-C4 alkyl, halogen or C1-C4 alkoxy. A radiation-sensitive composition useful in a lithographic printing plate comprises (i) the above-described polyvinyl acetal copolymer; and (ii) a light-to-heat transformer compound.

    Abstract translation: 聚乙烯醇缩醛共聚物化合物包括单元A，B，C和D，其中A以0.5至30重量％的量存在并具有下式：其中R是氢，C 1 -C 6烷基，-CH = CHCOOH 或B以5至35重量％的量存在，并且具有式C的存在量为10至55重量％，并且具有下式：其中R 1是具有至多4个碳的烷基 或任选被酸基取代的苯基或其中连接有酸基的苯基，其中苯基任选地包含1至2个选自卤素原子，氨基，甲氧基，乙氧基，甲基和乙基的其它取代基，或 是Z-NR2-CO-Y-COOH基团，其中Z是脂族，芳族或芳脂族间隔基，R2是氢或脂族，芳族或芳脂族部分，Y是饱和或不饱和的链或环形间隔基 基团和单元C可以在共聚物中具有一个或多个出现的各种部分R1彼此独立; 并且D以10至40重量％的量存在并且具有下式：其中X为C 1 -C 6亚烷基，任选被一个或多个选自以下的取代基取代的5或6元饱和碳环部分：C1 C 4烷基，C 1 -C 4烷氧基或卤素，5或6元饱和杂环部分，其在核中包含一个或多个选自氧，氮和硫的杂原子，或式I的基团，其中n是0的整数 至4，并且每个R 3独立地选自C 1 -C 4烷基，卤素或C 1 -C 4烷氧基。 可用于平版印刷版的辐射敏感组合物包含（i）上述聚乙烯醇缩醛共聚物; 和（ii）光 - 热变压器化合物。

    Heat-sensitive lithographic printing plate precursor
    197.
    发明授权
    Heat-sensitive lithographic printing plate precursor 有权
    热敏平版印刷版前体

    公开(公告)号：US06397749B1

    公开(公告)日：2002-06-04

    申请号：US09626490

    申请日：2000-07-26

    Applicant: Nobuyuki Kita ,  Keiji Akiyama ,  Hidekazu Oohashi

    Inventor： Nobuyuki Kita ,  Keiji Akiyama ,  Hidekazu Oohashi

    IPC: B41N108

    CPC classification number: B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/08 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    Abstract: A heat-sensitive precursor of lithographic printing plates, which comprises a hydrophilic layer provided on a substrate having an ink-receptive surface or coated with an ink-receptive layer; the printing plate precursor further having a water-soluble overcoat layer on the hydrophilic layer, and the hydrophilic layer being a three-dimensionally cross-linked hydrophilic layer, the heated area of that is easily removed by a fountain solution or ink when subjected to printing operations.

    Abstract translation: 平版印刷版的热敏前体，其包括设置在具有油墨接收表面或涂覆有油墨接受层的基材上的亲水层; 印版前体还在亲水层上还具有水溶性外涂层，亲水层是三维交联的亲水层，其加热区域在经受印刷时容易被润版液或油墨除去 操作。

    Negative image-recording material
    200.
    发明申请
    Negative image-recording material 有权
    负图像记录材料

    公开(公告)号：US20020051934A1

    公开(公告)日：2002-05-02

    申请号：US09928447

    申请日：2001-08-14

    Inventor： Ippei Nakamura ,  Tadahiro Sorori

    IPC: G03F007/004 ,  G03F007/016 ,  G03F007/029

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41M5/465

    Abstract: A negative image-recording material which can be imagewise exposed to IR radiation from IR lasers and ensures direct image formation from digital data of a computer or the like. The material, when used in a lithographic printing plate, ensures good hardenability in an image area and exhibits good printing durability, even if not heated for image formation, and ensures a large number of good prints from the printing plate. The recording material contains (A) an IR absorber, (B) a radical generator having an onium salt structure, (C) a radical-polymerizing compound, and (D) a reducing additive, and this is imagewise exposed to IR radiation for image formation. Preferably, the reducing additive (D) is highly reactive with radicals and a reaction product with a radical has high reductivity. Preferred examples of the reducing additive are ether-type hydrogen donors, alcohol-type hydrogen donors, vinyl ethers and phosphine-type compounds.

    Abstract translation: 可以从IR激光器成像曝光到IR辐射的负图像记录材料，并确保从计算机等的数字数据直接形成图像。 该材料在平版印刷版中使用时，确保图像区域的良好的淬透性，并且即使不加热成像，也能保证印刷品的良好印刷，因此具有良好的印刷耐久性。 记录材料包含（A）IR吸收剂，（B）具有鎓盐结构的自由基发生剂，（C）自由基聚合化合物和（D）还原添加剂，并且其成像暴露于IR辐射图像 形成。 优选地，还原添加剂（D）与自由基具有高反应性，并且与基团的反应产物具有高的还原性。 还原添加剂的优选实例是醚型氢供体，醇型氢供体，乙烯基醚和膦类化合物。

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