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    • 3. 发明授权
    • Imaging element for making a lithographic printing plate
    • 用于制作平版印刷版的成像元件
    • US5624783A
    • 1997-04-29
    • US629135
    • 1996-04-08
    • Lode DeprezEric Kiekens
    • Lode DeprezEric Kiekens
    • G03C8/06G03F7/07G03F7/105G03C1/83G03C8/52
    • G03F7/07G03C8/06G03F7/105
    • The present invention provides an imaging element comprising on one side of a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei in water permeable relationship with said emulsion layer and on the other side of the support at least one backing layer comprising gelatin and a dye and/or a dye precursor characterized in that said dye or dye precursor is such that after treatment of said imaging element in an alkaline solution with a pH of 10.9 for 20 s at a temperature of 30.degree. C. the backing layer has a reflection spectrum when treated for 20 s at 20.degree. C. in a neutralizing solution with a pH of 7.5 that is visually different from the reflection spectrum when treated for 20 s at 20.degree. C. in a neutralizing solution with a pH of 8.5.
    • 本发明提供了一种成像元件,其包括在载体的一侧上的包含卤化银乳剂的光敏层和包含与所述乳剂层水可渗透关系的物理发育核心的图像接收层,并且在载体的另一侧上至少一个 背衬层包含明胶和染料和/或染料前体,其特征在于所述染料或染料前体使得在30℃的pH为10.9的碱性溶液中处理所述成像元件20秒20秒。 当在20℃下在pH为7.5的中和溶液中在20℃下处理20秒时,背景层具有反射光谱,当在20℃下在中和溶液中处理20秒时,反射光谱与反射光谱不同, pH值8.5。
    • 5. 发明授权
    • Method for making a lithographic printing plate
    • 平版印刷版的制造方法
    • US5763137A
    • 1998-06-09
    • US688277
    • 1996-07-29
    • Lode DeprezJos Vaes
    • Lode DeprezJos Vaes
    • G03F7/06G03C8/32G03F7/07
    • G03F7/063
    • The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of: image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei, developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid and neutralizing a thus obtained developed imaging element using a neutralization solution having a pH between 4 and 10.5 and comprising a hydrophobizing agent and a buffer characterized in that said neutralization solution comprises a salt of sulfurous acid.
    • 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,包括以下步骤:将包含在载体上的成像元件成像曝光,所述感光层包含卤化银乳剂和含有 物理发育核,在显影剂和卤化银溶剂的存在下使用碱性处理液显影所述成像元件,并且使用pH为4至10.5的中和溶液中和由此获得的显影成像元件,并且包含 疏水化剂和缓冲剂,其特征在于所述中和溶液包含亚硫酸盐。
    • 6. 发明授权
    • Method for making by phototypesetting a lithographic printing plate
according to the silver salt diffusion transfer process
    • 根据银盐扩散转移法通过光刻印版印刷版制造方法
    • US5712077A
    • 1998-01-27
    • US787695
    • 1997-01-27
    • Lode DeprezPaul Callant
    • Lode DeprezPaul Callant
    • G03C5/08G03C8/36G03F7/00G03F7/07G03C1/035G03C1/18G03C8/06
    • G03F7/07
    • The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the following steps: image-wise exposing with a high intensity-short time exposure with light with a wavelength between 600 nm and 700 nm an imaging element comprising on a support (1) a photosensitive layer comprising at least one photosensitive silver halide emulsion sensitized to light by means of one or more cationic carbocyanine sensitizing dye having a maximum absorption between 600 nm and 700 nm, the silver halide crystals of said silver halide emulsion comprising more than 95 mole % of silver chloride per mole of silver halide and (2) an image receiving layer comprising physical development nuclei in a water permeable relationship with said photosensitive layer, developing said imaging element using an alkaline processing liquid in the presence of (a) developing agent(s) and (a) silver halide solvent(s), characterized in that said silver halide crystals contain silver iodide between 0.25 mole % and 2 mole %/mole silver halide in the outer 10% by weight region of said crystals.
    • 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,包括以下步骤:用600nm至700nm波长的光以高强度短时间曝光进行成像曝光成像 元件包括在支撑体(1)上的感光层,该感光层包含至少一种通过一种或多种具有最大吸收在600nm和700nm之间的阳离子碳菁感染染料而对光敏感的感光卤化银乳剂,所述银的卤化银晶体 包含每摩尔卤化银超过95摩尔%的氯化银的卤化物乳液和(2)包含与所述感光层具有水可渗透关系的物理显影核的图像接收层,在存在的情况下使用碱性处理液显影所述成像元件 (a)显影剂和(a)卤化银溶剂,其特征在于所述s 在所述晶体的外部10重量%区域中,卤化物晶体含有0.25摩尔%至2摩尔%/摩尔卤化银之间的碘化银。