中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2228 records (took 0.041 seconds)

    Lithographic printing plate support and presensitized plate
    371.
    发明申请
    Lithographic printing plate support and presensitized plate 审中-公开
    平版印刷版支持和预感板

    公开(公告)号：US20060223005A1

    公开(公告)日：2006-10-05

    申请号：US11391420

    申请日：2006-03-29

    Applicant: Hisashi Hotta

    Inventor： Hisashi Hotta

    IPC: G03F7/00

    CPC classification number: B41N1/083 ,  B41C2201/04 ,  B41N3/034 ,  B41N3/038 ,  C25F3/04

    Abstract: Disclosed is a lithographic printing plate support obtainable by subjecting an aluminum plate to an electrochemical graining treatment with an aqueous solution containing hydrochloric acid, anodizing treatment and alkali metal silicate treatment at least, wherein: a surface of the support has a grained shape in which large pits with a mean aperture diameter of 2 to 10 μm and small pits with a mean aperture diameter of 0.05 to 0.8 μm overlap with each other, with the mean ratio of depth to aperture diameter of the small pits being 0.2 to 0.6; a surface area difference ΔS50 defined by equation (1): ΔS50=(Sx50−S050)/S050×100 (%)   (1) in which Sx50 is the actual area of a 50 μm square region of the surface as determined by three-point approximation from three-dimensional data obtained by measuring the region with an atomic force microscope at 512×512 points and S050 is the geometrically measured area of the same region, is 20 to 40%; the alkali metal silicate treatment is performed using an aqueous solution of pH 11.5 to 13.0 which contains an alkali metal silicate; and an amount of Si atoms deposited to the surface is 3.0 to 15.0 mg/m2. The presensitized plate according to the present invention allows not only the press life but also the resistance to scumming by ink spreading, resistance to scumming by leaving and resistance to scumming by failed deletion, and the water visibility as well, to be excellent, even if an FM screen is used for halftone.

    Abstract translation: 公开了一种平版印刷版支撑体，其可以通过使用含有盐酸的水溶液，阳极氧化处理和碱金属硅酸盐处理的铝板进行电化学粗化处理，其中：所述载体的表面具有大的 平均孔径为2〜10μm的凹坑，平均孔径为0.05〜0.8μm的小凹坑彼此重叠，小凹坑的深度与孔径的平均比为0.2〜0.6; 由公式（1）定义的表面积差ΔS<50> <？in-line-formula description =“In-line formula”end =“lead”？> DeltaS 50 SUP > =（S 50 50 50 SUP> 50×100（％）（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中S 50是通过用原子力显微镜在512×512点测量区域获得的三维数据的三点近似来确定的表面的50um方形区域的实际面积，并且S < 相同区域的几何测量面积为20〜40％; 碱金属硅酸盐处理使用含有碱金属硅酸盐的pH11.5〜13.0的水溶液进行， 并且沉积到表面的Si原子的量为3.0至15.0mg / m 2。 根据本发明的预感板不仅允许压力寿命，而且还允许通过油墨铺展防止浮渣，抵抗由于失效而产生的浮渣和抵抗通过失效的浮渣的阻力以及水的可视性而优异，即使 调频屏幕用于半色调。

    Method for forming images
    372.
    发明授权
    Method for forming images 有权
    图像形成方法

    公开(公告)号：US07115352B2

    公开(公告)日：2006-10-03

    申请号：US10973918

    申请日：2004-10-27

    Applicant: Hiroyuki Nagase

    Inventor： Hiroyuki Nagase

    IPC: G03F7/30 ,  G03F7/32

    CPC classification number: G03F7/322 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/20 ,  B41C2210/22 ,  B41C2210/24 ,  G03F7/3028

    Abstract: The present invention relates to a method for forming images which comprises imagewise exposing a photopolymerizable image-forming material comprising a substrate provided thereon with an image-recording layer which comprises a specific photopolymerization initiator system, a polymerizable compound carrying at least one ethylenically unsaturated group and a binder polymer and then developing the imagewise exposed material with a developer containing at least one carbonate and at least one hydrogen carbonate and a specific surfactant in an amount ranging from 1.0 to 10% by weight, and having a specific pH and a specific electrical conductivity. The image-forming method permits the achievement of a sufficient developing ability even at a relatively low pH at which the image-forming material is not damaged so much and the preparation of a printing plate having good printing durability.

    Abstract translation: 本发明涉及一种形成图像的方法，该方法包括成像曝光可光聚合成像材料，其中所述可光聚合成像材料包括其上设置有基材的基板，所述图像记录层包含特定光聚合引发剂体系，携带至少一个烯键式不饱和基团的可聚合化合物和 粘合剂聚合物，然后用含有至少一种碳酸酯和至少一种碳酸氢盐和特定表面活性剂的显影剂显影成像曝光的材料，其量为1.0至10重量％，并且具有特定的pH和比电导率 。 图像形成方法即使在成像材料没有被损坏太多的相对低的pH下也能够获得足够的显影能力，并且制备具有良好印刷耐久性的印刷版。

    Planographic printing plate precursor
    373.
    发明申请
    Planographic printing plate precursor 审中-公开
    平版印刷版前体

    公开(公告)号：US20060204887A1

    公开(公告)日：2006-09-14

    申请号：US11355172

    申请日：2006-02-16

    Applicant: Masako Imai ,  Ippei Nakamura

    Inventor： Masako Imai ,  Ippei Nakamura

    IPC: G03C1/76

    CPC classification number: B41C1/1016 ,  B41C2201/02 ,  B41C2201/04 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41M2205/38

    Abstract: The planographic printing plate precursor of the present invention comprises a support, an intermediate layer containing a polymer having an aromatic ring having two or more carboxylic acid groups on a side chain, which is provided on the support, and an infrared-ray layer photosensitive positive-type recording layer provided on the intermediate layer. According to the invention, a planographic printing plate precursor which can directly make plates by scanning light exposure based on a digital signal, is excellent in printing durability, and is excellent in removability of image parts not required with a removal solution.

    Abstract translation: 本发明的平版印刷版原版包括载体，含有聚合物的中间层，所述聚合物具有侧链上具有两个或更多个羧酸基团的芳环，其设置在载体上，以及红外线感光性阳性 型记录层。 根据本发明，可以通过基于数字信号扫描曝光直接制作印版的平版印刷版原版具有优异的印刷耐久性，并且除去溶液不需要的图像部分的可去除性优异。

    Method of making a negative-working lithographic printing plate
    378.
    发明申请
    Method of making a negative-working lithographic printing plate 有权
    制造负性平版印刷版的方法

    公开(公告)号：US20060073418A1

    公开(公告)日：2006-04-06

    申请号：US11239534

    申请日：2005-09-29

    Applicant: Sue Wilkinson ,  Huub Van Aert ,  Dirk Faes ,  Joan Vermeersch

    Inventor： Sue Wilkinson ,  Huub Van Aert ,  Dirk Faes ,  Joan Vermeersch

    IPC: G03F7/00

    CPC classification number: B41C1/1025 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/10 ,  B41C2210/22 ,  B41C2210/24 ,  G03F7/3035 ,  G03F7/32

    Abstract: A method for preparing a negative-working lithographic printing plate is provided which comprises the steps of (1) providing a lithographic printing plate precursor comprising on a grained and anodized aluminum support, having a hydrophilic surface, a coating comprising (i) polymer particles which are core-shell particles having a hydrophobic heat-softenable core and a hydrophilic shell and (ii) an infrared light absorbing agent, (2) exposing said coating to heat, thereby inducing coalescence of said polymer particles at exposed areas of said coating, and (iii) developing said precursor by applying a gum solution to said coating, thereby removing non-exposed areas of said coating from said support. According to the above method the printing plates exhibit after ageing an improved clean-out and a reduced background stain, resulting in toning-free printing.

    Abstract translation: 提供了制备负性平版印刷版的方法，其包括以下步骤：（1）提供平版印刷版前体，其包含在具有亲水表面的颗粒和阳极氧化的铝载体上，涂层包含（i）聚合物颗粒， 是具有疏水性可热软化芯和亲水壳的核 - 壳颗粒和（ii）红外光吸收剂，（2）使所述涂层曝光加热，从而在所述涂层的暴露区域诱导所述聚合物颗粒的聚结，以及 （iii）通过将胶溶液施加到所述涂层来显影所述前体，从而从所述载体除去所述涂层的未曝光区域。 根据上述方法，印版在老化后显示出改善的清洁和减少的背景污点，导致无色调打印。

Patent Agency Ranking