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    Hydrophilized support for planographic printing plates and its preparation
    11.
    发明授权
    Hydrophilized support for planographic printing plates and its preparation 有权
    平版印刷版的亲水化载体及其制备

    公开(公告)号：US06105500A

    公开(公告)日：2000-08-22

    申请号：US77181

    申请日：1998-10-19

    Applicant: Harjit Singh Bhambra ,  Robert Michael Organ

    Inventor： Harjit Singh Bhambra ,  Robert Michael Organ

    IPC: B41N3/03

    CPC classification number: B41N3/038

    Abstract: A method for preparing a substrate for a planographic printing plate is disclosed. A liquid that contains water; a soluble alkali metal silicate, preferably sodium silicate; and a dispersed particulate material is coated on a substrate, preferably aluminum or an aluminum alloy, to produce a hydrophilic layer on the substrate. A layer of image material may be coated over the substrate to produce a planographic printing plate. In one embodiment the liquid contains a mixture of two particulate materials: alumina and titanium dioxide.

    Abstract translation: PCT No.PCT / GB96 / 02883 Sec。 371日期：1998年10月19日 102（e）1998年10月19日PCT PCT 1996年11月21日PCT公布。 第WO97 / 19819号公报 日期：1997年6月5日公开了一种用于制备平版印刷版基板的方法。 含有水的液体 可溶性碱金属硅酸盐，优选硅酸钠; 并且将分散的颗粒材料涂覆在基底上，优选为铝或铝合金，以在基底上产生亲水层。 可以将一层图像材料涂覆在基底上以产生平版印刷版。 在一个实施方案中，液体含有两种颗粒物质的混合物：氧化铝和二氧化钛。

    Polyvinyl acetals having imido groups and use thereof in photosensitive compositions
    13.
    发明授权
    Polyvinyl acetals having imido groups and use thereof in photosensitive compositions 失效
    具有亚胺基的聚乙烯醇缩醛及其在光敏组合物中的用途

    公开(公告)号：US6087066A

    公开(公告)日：2000-07-11

    申请号：US418284

    申请日：1999-10-14

    Applicant: Harald Baumann ,  Celin Savariar-Hauck ,  Hans-Joachim Timpe

    Inventor： Harald Baumann ,  Celin Savariar-Hauck ,  Hans-Joachim Timpe

    IPC: C08F8/00 ,  G03F7/038 ,  G03C1/73 ,  C08G4/00 ,  C08J3/28 ,  G03C1/72 ,  G03C1/74

    CPC classification number: G03F7/0388 ,  C08F8/00 ,  Y10S430/11 ,  Y10S430/127

    Abstract: This invention relates to polyvinyl acetals containing the units A, B, C and D, whereinA is present in an amount of 0.5 to 20 wt.-% and is of the formula ##STR1## B is present in an amount of 15 to 35 wt.-% and is of the formula ##STR2## C is present in an amount of 10 to 50 wt.-% and is of the formula ##STR3## wherein R.sup.1 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 halos, amino, methoxy, ethoxy, methyl and ethyl groups, or is a group X--NR.sup.6 --CO--Y--COOH, wherein X is an aliphatic, aromatic or araliphatic spacer group, R.sup.6 is hydrogen or an aliphatic, aromatic or araliphatic moiety and Y is a saturated or unsaturated chain- or ring-shaped spacer group, and this unit C may be contained several times with various moieties R.sup.1 independent of one another, and D is present in an amount of 25 to 70 wt.-% and is of the formula ##STR4## wherein n is an integer from 1 to 3 andR.sup.2 and R.sup.3 are a hydrogen or a methyl group, andR.sup.4 and R.sup.5 independent of one another are alkyl groups having no more than 4 carbons or R.sup.4 and R.sup.5, together with the two carbons they are attached to, represent a 5- or 6-membered carbocyclic ring.In addition, photosensitive compositions containing these polyvinyl acetals are described.

    Abstract translation: 本发明涉及含有单元A，B，C和D的聚乙烯醇缩醛，其中A以0.5至20重量％的量存在并且具有式B的量为15至35重量％ ％，并且式C的存在量为10至50重量％，并且具有下式：其中R 1是具有至多4个碳的烷基，其任选被酸基取代，或苯基 ，其中所述苯基任选地包含1至2个选自卤素，氨基，甲氧基，乙氧基，甲基和乙基的其它取代基，或为X-NR6-CO-Y-COOH基团，其中 X是脂族，芳族或芳脂族间隔基，R6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，并且该单元C可以含有多个部分 R1彼此独立，D以25至70重量％的量存在，并具有下式其中n为 1至3的整数，R 2和R 3为氢或甲基，且R 4和R 5彼此独立地为不多于4个碳的烷基或R 4和R 5以及它们所连接的两个碳原子， 代表5-或6-元碳环。 此外，还描述了含有这些聚乙烯醇缩醛的光敏组合物。

    Direct write waterless imaging member with improved ablation properties and methods of imaging and printing
    14.
    发明授权
    Direct write waterless imaging member with improved ablation properties and methods of imaging and printing 失效
    直接写入无水成像构件具有改进的消融性能和成像和打印方法

    公开(公告)号：US6085655A

    公开(公告)日：2000-07-11

    申请号：US365127

    申请日：1999-07-30

    Applicant: Mark A. Harris ,  David B. Bailey

    Inventor： Mark A. Harris ,  David B. Bailey

    IPC: B41C1/10 ,  B41N1/00 ,  B41N1/14 ,  G03F7/075

    CPC classification number: B41C1/1041 ,  B41C1/1033 ,  B41N1/003 ,  B41C1/1008 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/16

    Abstract: A lithographic imaging member, such as a printing plate, has a support having thereon an ink-accepting melanophilic layer and an ink-rejecting siloxane surface melanophobic layer. Within the printing plate is a photothermal conversion material capable of converting irradiation, such as IR radiation, to heat in exposed regions. Also within one of the layers is a compound that upon imaging releases a moiety that facilitates degradation of the surface melanophobic layer. The released moiety can be fluoride ion or a fluoride ion-containing compound. In some imaging members, a barrier layer may be interposed between the two other layers. Such imaging members can be digitally imaged and used for printing without post-imaging processing.

    Abstract translation: 诸如印版的平版印刷成像构件具有其上具有接受油墨的亲水层和拒油硅氧烷表面黑素抑制层的载体。 在印版内是能够将辐射如IR辐射转换成暴露区域的热的光热转换材料。 在一个层内也是化合物，其在成像时释放​​促进表面黑素抑制层降解的部分。 释放的部分可以是氟离子或含氟离子的化合物。 在一些成像构件中，可以在两个其它层之间插入阻挡层。 这样的成像构件可以被数字成像并用于不进行后置成像处理的打印。

    Planographic printing
    18.
    发明授权
    Planographic printing 失效
    普通印刷

    公开(公告)号：US6058841A

    公开(公告)日：2000-05-09

    申请号：US318881

    申请日：1999-05-26

    Applicant: Kevin Barry Ray ,  Christopher David McCullough

    Inventor： Kevin Barry Ray ,  Christopher David McCullough

    IPC: B41C1/10 ,  G03F7/075

    CPC classification number: B41C1/1075 ,  B41C1/1008 ,  G03F7/0752 ,  G03F7/0755 ,  B41C2210/04 ,  B41C2210/16

    Abstract: A formulation comprising a heat sensitive cross-linkable ink and carbon black is coated over substantially the entirety of an ink-repellent/ink-releasing surface of a printing cylinder of a printing press by heating the formulation and/or the outer surface of the printing cylinder so that the formulation adheres to the cylinder to provide a continuous coating thereon. The coated printing cylinder is then allowed to cool to ambient temperature whereafter it can be imaged using a digitally controlled laser. The imaged printing cylinder may be developed during press start up by application of waterless ink over the cylindter surface in order to remove the non-imaged areas comprising non-cross-linked ink. After completion of printing, the printing cylinder can be cleaned by using an appropriate solvent to solubilize the cross-linked ink in the imaged areas and subsequently re-used.

    Abstract translation: 包含热敏交联油墨和炭黑的配方通过加热印刷机的配方和/或外表面而涂覆在印刷机的印刷滚筒的基本上全部的防墨/油墨释放表面上 使得制剂粘附到圆筒上以在其上提供连续的涂层。 然后将涂覆的印刷滚筒冷却至环境温度，之后可以使用数字控制的激光成像。 成像的印刷滚筒可以在印刷机启动期间通过在圆柱形表面上施加无水墨水来显影，以便去除包括非交联墨水的非成像区域。 打印完成后，可以使用合适的溶剂清洗印刷滚筒，以便将成像区域中的交联墨水溶解并随后重新使用。

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