Negative working, heat-sensitive lithographic printing plate precursor
    6.
    发明授权
    Negative working, heat-sensitive lithographic printing plate precursor 有权
    负性工作,热敏平版印刷版前体

    公开(公告)号:US08304165B2

    公开(公告)日:2012-11-06

    申请号:US12439578

    申请日:2007-10-10

    IPC分类号: G03F7/004 B41N1/08

    摘要: A heat-sensitive negative-working lithographic printing plate precursor comprising: a support having a hydrophilic surface or which is provided with a hydrophilic layer; and an image-recording layer comprising hydrophobic thermoplastic polymer particles and an infrared light absorbing dye; characterized in that: said image-recording layer further comprises a compound, said compound comprising an aromatic moiety and at least one acidic group or salt thereof and having a most bathochromic light absorption peak at a wavelength between 300 nm and 450 nm.

    摘要翻译: 一种热敏负性平版印刷版原版,其包含:具有亲水表面的或具有亲水层的载体; 和包含疏水性热塑性聚合物颗粒和红外光吸收染料的图像记录层; 其特征在于:所述图像记录层还包含化合物,所述化合物包含芳族部分和至少一种酸性基团或其盐,并且在300nm至450nm之间的波长处具有最大的红移光吸收峰。

    Colour laser marking methods of security document precursors
    9.
    发明授权
    Colour laser marking methods of security document precursors 有权
    安全文件前体的彩色激光打标方法

    公开(公告)号:US09067450B2

    公开(公告)日:2015-06-30

    申请号:US14241115

    申请日:2012-09-04

    摘要: A method of color laser marking a security document precursor including at least: a transparent biaxially stretched polyethylene terephthalate foil; at least one colorless color forming layer for generating a color different from black containing at least an infrared absorber a color forming compound and a polymeric binder; and a laser markable polymeric support or a laser markable layer for generating a black color; comprising the steps of: laser marking the colorless color forming layer through the transparent polymeric foil with a infrared laser used in continuous wave mode to generate a color different from black; and laser marking the laser markable polymeric support or the laser markable layer through the transparent polymeric foil with the same infrared laser but used in a pulsed mode to generate a black color.

    摘要翻译: 一种彩色激光标记安全文件前体的方法,至少包括:透明双轴拉伸聚对苯二甲酸乙二醇酯箔; 至少一个无色颜色形成层,用于产生不同于至少含有红外线吸收剂的成色化合物和聚合物粘合剂的黑色; 以及用于产生黑色的可激光标记聚合物支撑体或激光可标记层; 包括以下步骤:通过使用连续波模式的红外激光通过透明聚合物箔激光标记无色成色层以产生不同于黑色的颜色; 并且通过具有相同红外激光器的透明聚合物箔片激光标记可激光标记聚合物支持体或激光可标记层,但以脉冲模式使用以产生黑色。

    Photopolymerizable composition
    10.
    发明授权
    Photopolymerizable composition 有权
    可光聚合组合物

    公开(公告)号:US07527916B2

    公开(公告)日:2009-05-05

    申请号:US10573193

    申请日:2004-09-01

    IPC分类号: C07C43/20 G03F7/00

    CPC分类号: G03F7/031 C08F2/50

    摘要: A composition that is photopolymerizable upon absorption of light in the wavelength range from 300 to 450 nm, the composition comprising a binder, a polymerizable compound, a sensitizer and a photoinitiator, characterized in that the sensitizer is an optical brightening agent having a solubility in methyl ethyl ketone of at least 15 g/kg measured at 20° C., allows to produce printing plates without pinhole defects, even if the printing plate precursor is stored before exposure and processing.

    摘要翻译: 在300〜450nm的波长范围内吸收光的光聚合性组合物,所述组合物含有粘合剂,聚合性化合物,敏化剂和光引发剂,其特征在于,所述增感剂是在甲基中具有溶解性的荧光增白剂 在20℃下测量的至少15g / kg的乙基酮,即使在曝光和加工之前储存印版前体,也可以生产没有针孔缺陷的印版。