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    • 3. 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
    • US5200294A
    • 1993-04-06
    • US810150
    • 1991-12-19
    • Rene M. De KeyzerJean-Marie O. DewanckeleLudo L. Van RompuyJos A. Vaes
    • Rene M. De KeyzerJean-Marie O. DewanckeleLudo L. Van RompuyJos A. Vaes
    • G03F7/00G03C8/06G03C8/36G03F7/06G03F7/07G03F7/32
    • G03C8/06G03C8/365G03F7/066
    • According to the present invention there is provided a method for making a lithographic printing plate according to the DTR-process comprising the steps of:information-wise exposing an imaging element comprising on a support a silver halide emulsion layer and an image-receiving layer containing physical development nuclei anddeveloping said information-wise exposed imaging element with an alkaline processing liquid in the presence of developing agent(s), silver halide solvent(s) and hydrophobizing agent(s) characterized in that said hydrophobizing agent(s) are present in said alkaline processing liquid in a total amount of at least 0.1 g/l and wherein at least one of said silver halide solvents is a compound corresponding to the following formula:Z--(R.sup.1 --S).sub.t --R.sup.2 --S--R.sup.3 --Y (I) wherein Z and Y each independently represents hydrogen, an alkyl group, an amino group, and ammonium group, a hydroxyl, a sulfo group, a carboxyl, an amino carbonyl or an aminosulfonyl, R.sup.1, R.sup.2 and R.sup.3 each independently represents an alkylene that may be substituted and optionally contain a oxygen bridge and t represents an integer from 0 to 10.
    • 根据本发明,提供了根据DTR方法制备平版印刷版的方法,包括以下步骤:将包含在载体上的成像元件信息地曝光在卤化银乳剂层和含有 物理发育核,并在显影剂,卤化银溶剂和疏水化剂存在下用碱性处理液显影所述信息曝光成像元件,其特征在于所述疏水剂存在 在所述碱性处理液中的总量为至少0.1g / l,并​​且其中至少一种所述卤化银溶剂是对应于下式的化合物:Z-(R1-S)t-R2-S-R3- Y(I)其中Z和Y各自独立地表示氢,烷基,氨基和铵基,羟基,磺基,羧基,氨基羰基或氨基磺酰基,R1,R2和R3各自独立 ly表示可以被取代并且任选地含有氧桥的亚烷基,t表示0至10的整数。