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    • 1. 发明授权
    • Production of lithographic printing plates in a dry manner
    • 以干燥方式生产平版印刷版
    • US5541034A
    • 1996-07-30
    • US244629
    • 1994-06-03
    • Luc LeendersRudy Van CleuvenbergenRudi De BusserMarcel Monbaliu
    • Luc LeendersRudy Van CleuvenbergenRudi De BusserMarcel Monbaliu
    • G03C1/498G03C7/305G03F7/06G03C8/00
    • 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 the 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 an imaging element, bringing the exposed element in face-to-face contact with an oleophobic surface of a printing plate precursor, heating the imaging element while in contact or before being brought in contact with the oleophobic surface to cause reduction of the organic silver salt and to cause the release of the hydrophobizing agent from the releasing compound, allowing the hydrophobizing agent to diffuse to the oleophobic surface to render the surface image-wise oleophilic, and separating the resulting lithographic printing plate from the imaging element.
    • PCT No.PCT / EP92 / 02673 Sec。 371日期:1994年6月3日 102(e)日期1994年6月3日PCT提交1992年11月20日PCT公布。 出版物WO93 / 11466 PCT 日期:1993年6月10日包含可热还原的有机银盐,光敏卤化银,显影剂和释放化合物的可显影的银基光敏成像元件,与还原或氧化形式的显影剂 试剂能够释放疏水剂。 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成像元件,使暴露的元件与印版前体的疏油表面面对面接触,在接触的同时加热成像元件 或者在与疏油表面接触之前,引起有机银盐的还原并使疏水化剂从释放化合物中释放出来,使疏水化剂扩散到疏油表面,使表面形成图像亲油性 ,并将所得平版印刷版与成像元件分离。
    • 9. 发明授权
    • Method for making a lithographic printing plate according to the silver
salt diffusion transfer process
    • 根据银盐扩散转移法制造平版印刷版的方法
    • US5536618A
    • 1996-07-16
    • US395100
    • 1995-02-27
    • Rene De KeyzerPaul CallantJean-Marie DewanckeleMarcel Monbaliu
    • Rene De KeyzerPaul CallantJean-Marie DewanckeleMarcel Monbaliu
    • G03C8/06G03C8/36G03F7/07G03F7/32G03C5/38
    • G03F7/07G03C8/365
    • The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of exposing and developing an imaging element comprising on a support a silver halide emulsion layer and an image-receiving layer in the presence of a silver halide solvents corresponding to the following formula:Z.sup.1 --(R.sup.1 --X.sup.1).sub.n --(R.sup.2 --X.sup.2)--L--(X.sup.3 --R.sup.3)--(X.sup.4 --R.sup.4).sub.m --Z.sup.2 (I)wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4 each independently represents --S--, --NH-- or --N(R.sup.5 --Z.sup.3)--, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each independently represents an alkylene, an alkenylene or an alkynylene, n and m each independently represents an integer from 0 to 4, Z.sup.1, Z.sup.2 and Z.sup.3 each independently represents hydrogen, an alkyl group, an amino group, an ammonium group, a hydroxyl, a sulfo group, a carboxyl, an aminocarbonyl or an aminosulfonyl, and L represents an ethylene or a C.sub.3 -C.sub.4 divalent linking chain, having a group preventing free rotation within this divalent linking chain, X.sup.2 and X.sup.3 being in the thermodynamically most stable conformation of said compound in a favorable position for complexation with a silver ion.
    • 本发明提供了一种根据银盐扩散转移方法制备平版印刷版的方法,该方法包括以下步骤:在含有卤化银乳剂层和图像接收层的存在下,在载体上曝光和显影成像元件 对应于下式的卤化银溶剂:Z1-(R1-X1)n-(R2-X2)-L-(X3-R3) - (X4-R4)m-Z2(Ⅰ)其中X1,X2,X3和 X4各自独立地表示-S-,-NH-或-N(R5-Z3) - ,R1,R2,R3,R4和R5各自独立地表示亚烷基,亚烯基或亚炔基,n和m各自独立地表示整数 0至4,Z 1,Z 2和Z 3各自独立地表示氢,烷基,氨基,铵基,羟基,磺基,羧基,氨基羰基或氨基磺酰基,L表示乙烯或 具有在该二价连接链中自由旋转的基团的C 3 -C 4二价连接链,X 2和X 3在其中 所述化合物在与银离子络合的有利位置的热力学最稳定构象。