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1.发明授权公开(公告)号：US06436176B1
公开(公告)日：2002-08-20
申请号：US08679243
申请日：1996-07-12
申请人： Johan Van Hunsel , Paul Mortelmans
发明人： Johan Van Hunsel , Paul Mortelmans
IPC分类号： B41N300
CPC分类号： B41N3/08
摘要： The present invention provides a concentrated dampening solution for use in a lithographic printing process having a pH between 3 and 6 and comprising a water-soluble organic solvent, a phosphate salt and a transparent pigment, characterized in that said transparent pigment is a modified silica in which the silica particles have a number average size of 0.003 to 0.100 &mgr;m and in which the silica particles are coated with chemically combined atoms of an amphoteric metal which forms an insoluble silicate at a pH between 5 and 12, said metal atoms being chemically bound through oxygen atoms to silicon atoms in the surface of said particles, and the amount of said metal being such that: Gram atoms M/Gram atoms Si=A/1250 to A/250000 where M is the metal and A is the surface area of the particles of the silica sol expressed in m2/g.
摘要翻译： 本发明提供了一种用于平版印刷方法的浓缩润版溶液，其具有3至6的pH，并且包含水溶性有机溶剂，磷酸盐和透明颜料，其特征在于所述透明颜料是改性二氧化硅 所述二氧化硅颗粒的数均分子量为0.003至0.100μm，并且其中所述二氧化硅颗粒在pH为5至12之间的情况下用形成不溶性硅酸盐的两性金属的化学组合原子涂覆，所述金属原子通过化学键合 氧原子与所述颗粒表面中的硅原子，并且所述金属的量使得：克原子M /格原子Si = A / 1250至A / 250000其中M是金属，A是表面积 硅溶胶颗粒以m2 / g表示。
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2.发明授权Concentrated dampening solution with citrate anions for printing with a lithographic printing plate obtained according to the silver salt diffusion transfer process 失效具有柠檬酸根阴离子的浓缩润版溶液，用根据银盐扩散转移方法获得的平版印刷印刷
公开(公告)号：US5658713A
公开(公告)日：1997-08-19
申请号：US633491
申请日：1996-04-17
申请人： Johan Van Hunsel , Paul Mortelmans
发明人： Johan Van Hunsel , Paul Mortelmans
摘要： The present invention provides a concentrated dampening solution for use in a lithographic printing process having a pH between 3 and 6 and comprising a water-soluble organic solvent, a phosphate salt and a transparent pigment in an amount between 1 g/l and 30 g/l, characterized in that said concentrated dampening solution further contains a total concentration of citrate anions between 0.5 mmole and 25 mmole/l.
摘要翻译： 本发明提供一种用于平版印刷方法的浓缩润版溶液，其具有3至6的pH，并且包含水溶性有机溶剂，磷酸盐和透明颜料，其量为1g / l至30g / 其特征在于，所述浓缩润版液还含有0.5-0.50毫摩尔/升之间的柠檬酸盐阴离子的总浓度。
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3.发明授权Method for lithographic printing by use of a lithographic printing plate provided by a heat sensitive non-ablatable wasteless imaging element and a fountain containing water-insoluble compounds 失效通过使用由热敏不可消耗的无用成像元件提供的平版印刷版和含有不溶于水的化合物的喷泉的平版印刷方法
公开(公告)号：US6165691A
公开(公告)日：2000-12-26
申请号：US212392
申请日：1998-12-16
CPC分类号： B41C1/1041 , B41N3/08
摘要： According to the present invention there is provided a method for lithographic printing comprising the following steps:preparing a lithographic printing plate by image-wise laser exposing a heat-sensitive non-ablatable wasteless imaging element comprising a compound capable of transferring light into heat and having on a support as top layer a heat sensitive image forming layer comprising a heat-switchable binder which layer becomes more hydrophilic or more hydrophobic under the action of image-wise laser exposure;mounting said printing element on the press prior to or after the exposure; andapplying a fountain solution and ink, characterized in that said fountain solution comprises at least one water insoluble compound selected from the group consisting of silica, alumina, titanium oxide, tin oxyde, china clay, smectic clay and zirconium oxide.
摘要翻译： 根据本发明，提供了一种用于平版印刷的方法，包括以下步骤：通过成像激光曝光热敏不可消耗的无用成像元件制备平版印刷版，所述成像元件包括能够将光转移到热中并具有 在作为顶层的支撑件上，包含可热切割粘合剂的热敏图像形成层，其在成像激光曝光的作用下变得更亲水或更疏水; 在曝光之前或之后将所述印刷元件安装在印刷机上; 并且使用润版液和油墨，其特征在于所述润版液包含至少一种选自二氧化硅，氧化铝，氧化钛，氧化锡，瓷土，近晶粘土和氧化锆的水不溶性化合物。
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公开(公告)号：US5766807A
公开(公告)日：1998-06-16
申请号：US637110
申请日：1996-04-24
CPC分类号： H04N1/4055
摘要： In order to improve the printability of a periodic halftone screen, the amount of growth of the halftone dots in a halftone screen is modulated as a function of tone in a tone selective way that is different for at least two halftone dots.
摘要翻译： 为了提高定期半色调屏幕的可印刷性，在半色调网屏幕上的半色调点的生长量作为对于至少两个半色调点不同的色调选择方式的色调的函数进行调制。
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5.发明授权Imaging element with a flexible support and method for making a lithographic printing plate 失效具有灵活支撑的成像元件和用于制造平版印刷版的方法
公开(公告)号：US5618651A
公开(公告)日：1997-04-08
申请号：US593452
申请日：1996-01-29
申请人： Marc Stevens , Johan Van Hunsel , Jos Vaes
发明人： Marc Stevens , Johan Van Hunsel , Jos Vaes
CPC分类号： G03F7/07 , G03C1/7954
摘要： There is provided an imaging element having a flexible support and comprising on said support a photosensitive layer comprising a silver halide emulsion and an image-receiving layer comprising physical development nuclei, said layers being in water permeable contact with each other, characterized in that said flexible support is a polyester film having a thickness between 0.15 and 0.35 mm and consisting of polyethylene 2,6-naphthalenedicarboxylate. There is also provided a method for making a lithographic printing plate comprising the steps of image-wise exposing an imaging element as defined above and subsequently developing a thus obtained imaging element by an alkaline processing liquid in the presence of developing agent(s) and silver halide solvent(s).
摘要翻译： 提供了一种具有柔性支撑件的成像元件，并且在所述支撑件上包括包含卤化银乳剂的感光层和包含物理显影核的图像接收层，所述层彼此水可渗透接触，其特征在于，所述柔性 载体是厚度在0.15和0.35mm之间并由2,6-萘二甲酸乙二醇酯组成的聚酯薄膜。 还提供了一种制备平版印刷版的方法，包括以下步骤：成像曝光如上所述的成像元件，并随后在显影剂和银的存在下用碱性处理液显影如此获得的成像元件 卤化物溶剂。
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公开(公告)号：US20100151390A1
公开(公告)日：2010-06-17
申请号：US12295642
申请日：2007-03-13
IPC分类号： G03F7/26
CPC分类号： G03F7/2055
摘要： A method for making a lithographic printing plate includes the steps of providing a printing plate precursor including a support and photosensitive coating wherein the photosensitive coating includes a photopolymerizable composition; image wise exposing the printing plate precursor on an external drum apparatus emitting one or more scanning laser beams having a wavelength between 390 nm and 420 nm and an energy density, measured on the surface of the precursor, of 100 μJ/cm2 or less; optionally preheating the printing plate precursor; and processing the exposed printing plate precursor with a developer.
摘要翻译： 制备平版印刷版的方法包括提供包括载体和感光涂层的印版前体的步骤，其中感光涂层包括光聚合组合物; 在外部鼓装置上发射一个或多个波长在390nm和420nm之间的扫描激光束和在前体表面上测量的能量密度为100μJ/ cm 2或更小的外部鼓板装置， 任选地预热印版前体; 并用显影剂处理曝光的印版前体。
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公开(公告)号：US5783356A
公开(公告)日：1998-07-21
申请号：US812451
申请日：1997-03-06
CPC分类号： G03F7/2053 , G03F7/07 , H04N1/40037 , Y10S430/146
摘要： A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.
摘要翻译： 用于产生连续色调图像的屏蔽再现的方法包括以下步骤：筛选连续色调图像以获得表示连续色调图像的色调的屏幕数据，并且适合于在辐射敏感成像元件上驱动微点的曝光; 根据所筛选的数据通过至少一组或多个（p）辐射束（b）暴露微点，其特征在于，在所述一组辐射束中的至少两个辐射束撞击在 扫描线（1）的特定微点（m）。 特别是描述了一种制备包含上述步骤的平版印刷版的方法。
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公开(公告)号：US6131512A
公开(公告)日：2000-10-17
申请号：US241294
申请日：1999-02-01
申请人： Bart Verlinden , Johan Van Hunsel
发明人： Bart Verlinden , Johan Van Hunsel
摘要： A printing master 12 is described which includes a printing element and a base 33, characterized in that base 33 is provided with one or more strain gauges 31 and electric connections for measuring electric resistance. In a preferred embodiment, the printing element is a plate having a printing surface 35, of which the back side 37 is laminated to base 33. The printing master 12 may have an optional adhesive layer 36 and/or protective layer 32. The registration of the printing master can be adjusted conveniently and accurately by measuring the resistance of the strain gauges.
摘要翻译： 描述了印刷主体12，其包括印刷元件和基部33，其特征在于，基部33设置有一个或多个应变计31和用于测量电阻的电连接。 在优选实施例中，打印元件是具有打印表面35的板，其背面37层压到基座33上。打印母版12可以具有任选的粘合层36和/或保护层32.注册 通过测量应变计的电阻可以方便，准确地调整印刷主机。
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公开(公告)号：US5922511A
公开(公告)日：1999-07-13
申请号：US729513
申请日：1996-10-11
CPC分类号： G03F7/016
摘要： According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing an imaging element having on a support in the order given (i) a uniform ink-repellant layer comprising a hydrophilic binder cross-linked by means of a hydrolysed tetra-alkylorthosilicate and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said photosensitive layer.The present invention also provides a method for making multiple copies of an original comprising the steps of:(1) image-wise exposing an imaging element having on a support in the order given (i) a uniform ink-repellant layer comprising a hydrophilic binder cross-linked by means of a hydrolysed tetra-alkylorthosilicate and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin;(2) mounting a thus obtained image-wise exposed imaging element without development, on a print cylinder of a printing press;(3) rotating said print cylinder while supplying an aqueous dampening liquid and/or supplying ink to said photosensitive layer of said imaging element and(4) transfering ink from said imaging element to a receiving element.
摘要翻译： 根据本发明，提供了一种制备平版印刷版的方法，包括以下步骤：（1）以给定的顺序成像曝光具有在支持体上的成像元件，其中（i）均匀的墨水排斥层包含 通过水解的四烷基原硅酸酯交联的亲水性粘合剂和（ii）包含重氮盐或重氮树脂的感光层; （2），并将如此获得的图像曝光的成像元件通过将其安装在印刷机的印刷滚筒上并将水性润版液体和/或墨水供应到所述感光层来显影。 本发明还提供了一种用于制作原件的多个副本的方法，包括以下步骤：（1）以给定的顺序将具有在支撑体上的成像元件成像曝光（i）包含亲水性粘合剂的均匀的墨水排斥层 通过水解的四烷基原硅酸酯和（ii）包含重氮盐或重氮树脂的感光层交联; （2）将未经显影的如此获得的图像曝光成像元件安装在印刷机的印刷滚筒上; （3）在供应水性阻尼液体和/或向所述成像元件的所述感光层供应墨水的同时旋转所述印刷滚筒，以及（4）将油墨从所述成像元件传送到接收元件。
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10.发明授权Method for making a lithographic printing plate with frequency modulated halftone dots 失效制造具有调频半色调点的平版印刷版的方法
公开(公告)号：US5635318A
公开(公告)日：1997-06-03
申请号：US542919
申请日：1995-10-13
申请人： Johan Van Hunsel
发明人： Johan Van Hunsel
摘要： There is provided a method for making a lithographic printing plate according to the DTR-process from a printing plate precursor comprising on a hydrophilic surface of a support in the order given a layer of physical development nuclei and a silver halide emulsion layer from an original containing continuous tones comprising the steps of:frequency modulation screening said original to obtain screened data,image-wise exposing said printing plate precursor according to said screened data,developing a thus obtained image-wise exposed lithographic printing plate precursor by means of an alkaline processing solution in the presence of a developing agent and a silver halide solvent yielding a lithographic printing plate, characterized in that the frequency modulated halftone dot with the greatest main dimension on said lithographic printing plate has a main dimension of more than 21 .mu.m.
摘要翻译： 提供了一种根据DTR方法从印版前体制备平版印刷版的方法，所述平版印刷版原版包含在载体的亲水表面上，其顺序为给定一层物理显影核和卤化银乳剂层，原始物含有 连续色调包括以下步骤：对所述原稿进行频率调制筛选以获得筛选数据，根据所述筛选数据对所述印版前体进行成像曝光，通过碱处理溶液显影如此获得的图像曝光的平版印刷版原版 在显影剂和产生平版印刷版的卤化银溶剂的存在下，其特征在于在所述平版印刷版上具有最大主要尺寸的调制半色调点的主要尺寸大于21μm。
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