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    • 14. 发明申请
    • IMAGE CARRIER FOR A REPROGRAPHIC IMAGE
    • 用于图像的图像载体
    • WO1993015272A1
    • 1993-08-05
    • PCT/EP1993000128
    • 1993-01-20
    • AGFA-GEVAERT NAAMLOZE VENNOOTSCHAPLEENDERS, LucDAEMS, Eddie
    • AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP
    • D21H21/54
    • A45D34/02A45D37/00A45D40/0087A61L9/042A61L9/12G03C1/79G03C1/95G03C8/24G03C11/12G03F3/10
    • An image carrier and a method for forming a reprographic image thereon is disclosed, said image carrier comprising a support and an opaque hydrophilic colloid layer characterized in that said opaque hydrophilic colloid layer contains at least two kinds of opacifying agents, being (a) polymeric particles consisting of hollow spherical core/sheat beads, (b) titanium dioxide of the anatase crystal modification. The image carrier can further contain an amount of common rutile titanium dioxide. In the preferred embodiment the reprographic image is a multicolour colloid pattern serving as a pre-press proof. By appropriately choosing different ratios of the respective amounts of the different opacifying agents, a set of image carriers serving as receptor materials for transferred coloured layers can be provided giving rise to different dot gain percentages in the final proof but showing essentially the same background whiteness. The support of the image carrier can be a polyolefin covered paper base or an organic polymeric resin. This polyolefin layer or polymeric resin can be opacified themselves with titanium dioxide.
    • 公开了一种用于在其上形成复印图像的图像载体和方法,所述图像载体包括支持体和不透明的亲水胶体层,其特征在于所述不透明亲水胶体层含有至少两种不透明剂,其为(a)聚合物颗粒 由中空球形芯/护套珠组成,(b)锐钛矿晶体改性的二氧化钛。 图像载体还可以含有一定量的常见的金红石型二氧化钛。 在优选实施例中,复印图像是用作预印刷证明的多色胶体图案。 通过适当选择不同不透明剂的各自量的不同比例,可以提供用作转印着色层的受体材料的一组图像载体,从而在最终证明中产生不同的增益百分比,但显示基本上相同的背景白度。 图像载体的载体可以是聚烯烃覆盖的纸基或有机聚合物树脂。 该聚烯烃层或聚合物树脂本身可以用二氧化钛混浊。
    • 15. 发明申请
    • PRODUCTION OF LITHOGRAPHIC PRINTING PLATES IN A DRY MANNER
    • 在干燥剂中生产平版印刷板
    • WO1993011466A1
    • 1993-06-10
    • PCT/EP1992002673
    • 1992-11-20
    • AGFA-GEVAERT NAAMLOZE VENNOOTSCHAPLEENDERS, LucVAN CLEUVENBERGEN, RudyDE BUSSER, RudiMONBALIU, Marcel
    • AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP
    • G03F07/06
    • G03C1/49845G03C7/30552G03F7/06
    • Heat-developable silver-based photosensitive imaging element comprising a heat-reducible organic silver salt, a photosensitive silver halide, a developing agent, and a releasing compound that upon reaction with either the reduced or the oxidized form of said developing agent is capable of releasing a hydrophobizing agent. The invention also relates to a method for producing a lithographic printing plate comprising image-wise exposing a said imaging element, bringing said exposed element in face-to-face contact with an oleophobic surface of a printing plate precursor, heating said imaging element while in contact or before being brought in contact with said oleophobic surface to cause reduction of said organic silver salt and to cause the release of said hydrophobizing agent from said releasing compound, allowing said hydrophobizing agent to diffuse to said oleophobic surface to render said surface image-wise oleophilic, and separating the resulting lithographic printing plate from said imaging element.
    • 含有可还原的有机银盐,感光卤化银,显影剂和释放化合物的可热显影的银基光敏成像元件,与还原或氧化形式的所述显影剂反应,能够释放 疏水剂。 本发明还涉及一种用于生产平版印刷版的方法,包括以成像方式曝光所述成像元件,使所述暴露元件与印版前体的疏油表面面对面接触,加热所述成像元件,同时 接触或在与所述疏油表面接触之前引起所述有机银盐的还原并使所述疏水化剂从所述释放化合物释放,使所述疏水化剂扩散到所述疏油表面以使所述表面成像 亲油的,并将得到的平版印刷版与所述成像元件分离。