Method for obtaining a heat sensitive element by spray-coating
    31.
    发明授权
    Method for obtaining a heat sensitive element by spray-coating 失效
    通过喷涂获得热敏元件的方法

    公开(公告)号:US06485889B1

    公开(公告)日:2002-11-26

    申请号:US09659690

    申请日:2000-09-11

    Inventor: Eric Verschueren

    CPC classification number: B41C1/1041 B41C1/1066 Y10S430/165

    Abstract: According to the present invention there is provided a method for obtaining a high quality printing plate by spraying a spray solution on a receiving surface of grained and anodized aluminum, characterized in that the spray factor (SF) is between 48 and 70 10 mN/m, wherein SF=(P/d×&sgr;) SF: Spray Factor (mN/m) P: Spray Profile (mm) d: distance between spray head and receiving surface (mm) &sgr;: surface tension (mN/m) and wherein the spray solution comprises hydrophobic thermoplastic polymer particles and a compound capable of converting light into heat.

    Abstract translation: 根据本发明,提供了一种通过将喷雾溶液喷洒在粒状和阳极氧化铝的接收表面上获得高质量印刷板的方法,其特征在于喷雾因子(SF)为48至70×10mN / m ,其中SF =(P / dxsigma)SF:喷雾因子(mN / m)P:喷雾轮廓(mm)d:喷头与接收面之间的距离(mm)西格玛:表面张力(mN / m),其中喷雾溶液 包括疏水性热塑性聚合物颗粒和能够将光转化成热的化合物。

    Heat mode sensitive imaging element for making positive working printing plates
    32.
    发明授权
    Heat mode sensitive imaging element for making positive working printing plates 有权
    加热模式敏感成像元件,用于制作正性印刷版

    公开(公告)号:US06447977B2

    公开(公告)日:2002-09-10

    申请号:US09260062

    申请日:1999-03-02

    Abstract: According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate having on a lithographic base with a hydrophilic surface a first layer including a polymer soluble in an aqueous alkaline solution, and a top layer on the same side of the lithographic base as the first layer that is IR-sensitive and unpenetrable for an aqueous alkaline developer wherein said first layer and said top layer may be one and the same layer; characterized in that the surface of said element upon exposure and treatment with an aqueous alkaline developer is such that a) the contact angle between the unexposed areas of the imaging element and the aqueous alkaline developer changes for at most 6° during the first minute of contact with said developer; b) the contact angle between the exposed areas of the imaging element and the aqueous alkaline developer changes more than 15° during the first minute of contact with said developer; c) the difference in contact angle between on the one side the unexposed areas and on the other side the exposed areas of the imaging element with the aqueous alkaline solution at the onset of the measurement is not higher than 10°.

    Abstract translation: 根据本发明,提供了一种用于制造平版印刷版的热模式成像元件,该平版印刷版在具有亲水表面的光刻基底上具有包含可溶于碱性水溶液的聚合物的第一层, 作为第一层的平版印刷基底,其对于碱性水溶液的IR敏感性和不透气性,其中所述第一层和所述顶层可以是同一层; 其特征在于,当用碱性显影剂水溶液曝光和处理时,所述元件的表面是这样的:a)成像元件的未曝光区域与含水碱性显影剂之间的接触角在接触第一分钟期间变化最多6° 所述显影剂; b)在与所述显影剂接触的第一分钟期间,成像元件的暴露区域和碱性水性显影剂之间的接触角变化大于15°; c)一侧上未曝光的接触角之间的差异 在测量开始时,成像元件与碱性水溶液的曝光区域不高于10°。

    Heat mode sensitive imaging element for making positive working printing plates
    33.
    发明授权
    Heat mode sensitive imaging element for making positive working printing plates 有权
    加热模式敏感成像元件,用于制作正性印刷版

    公开(公告)号:US06391517B1

    公开(公告)日:2002-05-21

    申请号:US09260061

    申请日:1999-03-02

    Abstract: According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is IR-sensitive and unpenetrable for an alkaline developer wherein said first layer and said top layer may be one and the same layer; characterized in that said top layer contains a polymer that lowers the dynamic friction coefficient of the top layer to less than 0.37, and wherein said polymer in the top layer is polytetrafluoroethylene.

    Abstract translation: 根据本发明,提供一种热模式成像元件,用于使平版印刷版在具有亲水表面的平版印刷基底上具有第一层,该第一层包括可溶于碱性水溶液的聚合物和位于同一侧上的顶层 作为第一层的光刻基底,其顶层对于碱性显影剂是IR敏感的和不可穿透的,其中所述第一层和所述顶层可以是同一层; 其特征在于,所述顶层含有将顶层的动摩擦系数降至小于0.37的聚合物,并且其中顶层中的所述聚合物是聚四氟乙烯。

    Imaging element for making lithographic printing plates with a decreased slippage in the press
    34.
    发明授权
    Imaging element for making lithographic printing plates with a decreased slippage in the press 失效
    用于制造平版印刷版的成像元件在印刷机中滑动减少

    公开(公告)号:US06305283B1

    公开(公告)日:2001-10-23

    申请号:US09514146

    申请日:2000-02-28

    CPC classification number: B41N1/14 B41C2201/06 B41N6/00 B41N6/02 G03F7/092

    Abstract: According to the present invention there is provided an imaging element for making a lithographic printing plate, including on a first side of a flexible support a surface capable of being differentiated in oleophilic and oleophobic areas upon imaging and on a second side opposite to the first side a layer or a package of layers, characterized in that the layer or package of layers on the backside has a ratio of the squared value of the gravimetric water absorption (WA) in g/m2 over the mean roughness in &mgr;m greater than 20.

    Abstract translation: 根据本发明,提供了一种用于制造平版印刷版的成像元件,该成像元件在柔性载体的第一侧具有在成像时能够在亲油性和疏油性区域中分化的表面,并且在与第一侧相反的第二侧上 一层或多层,其特征在于背面层或层包层的重量吸收光(WA)的平方值(g / m 2)之间的平均粗糙度大于20。

    Heat mode recording material and method for producing driographic
printing plates
    35.
    发明授权
    Heat mode recording material and method for producing driographic printing plates 失效
    热模式记录材料及其制造方法

    公开(公告)号:US6077646A

    公开(公告)日:2000-06-20

    申请号:US929116

    申请日:1997-09-15

    Abstract: The present invention provides a heat mode recording material comprising on a side of a support having an oleophilic surface (i) a recording layer containing a light-to-heat converting substance capable of converting radiation into heat and (ii) an oleophobic surface layer, wherein said oleophobic surface layer and said recording layer may be the same layer and on another side of the support a backing layer, characterized in that the maximum roughness depth R.sub.t of the surface layer is at least 0.65 .mu.m and/or the maximum roughness depth of the outer back layer is at least 1.20 .mu.m.

    Abstract translation: 本发明提供了一种热模式记录材料,其包含在具有亲油表面的支撑体的侧面上(i)包含能够将辐射转化成热量的光 - 热转换物质的记录层和(ii)疏油表面层, 其中所述疏油表面层和所述记录层可以是相同的层,并且在支撑体的另一侧具有背衬层,其特征在于,表面层的最大粗糙度深度Rt为至少0.65μm和/或最大粗糙度深度 的外背层为至少1.20μm。

    On the press development of a diazo based printing plate
    36.
    发明授权
    On the press development of a diazo based printing plate 失效
    关于重氮基印刷版的新闻发展

    公开(公告)号:US5776654A

    公开(公告)日:1998-07-07

    申请号:US721849

    申请日:1996-09-30

    CPC classification number: G03F7/26 G03F7/016

    Abstract: 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 plastic film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder 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 plastic film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder 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.

    Abstract translation: 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)按照以下顺序成像曝光具有塑料膜载体的成像元件:(i)均匀的疏墨层 包括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)按照给定的顺序成像曝光具有塑料膜支撑件的成像元件,(i)均匀的墨水排斥层,包括 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)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。

    Diazo based imaging element having improved resistance against physical
damage
    37.
    发明授权
    Diazo based imaging element having improved resistance against physical damage 失效
    重氮基成像元件具有改善的抵抗物理损伤的抵抗力

    公开(公告)号:US5663031A

    公开(公告)日:1997-09-02

    申请号:US593354

    申请日:1996-01-29

    CPC classification number: G03F7/11

    Abstract: The present invention provides an imaging element comprising on a support in the order given a coated composition of at least two hydrophilic layers being in water permeable contact with each other and each containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolyzed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that the ratio by weight in the top layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is at least 1.1 and the ratio by weight in an underlying layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is not higher than 0.9.

    Abstract translation: 本发明提供了一种成像元件,其按照给定涂层组合物的顺序包含至少两个彼此具有水可渗透接触的亲水层,并且各自含有亲水(共)聚合物或(共)聚合物混合物,并且已经被 用水解的原硅酸四烷基酯和含有重氮树脂或重氮盐的光敏层硬化,其特征在于所述亲水(共)聚合物或(共)聚合物混合物包装的顶层中的重量比与所述水解的四烷基 所述原硅酸盐(表示为二氧化硅)至少为1.1,并且所述亲水(共)聚合物或(共)聚合物混合物的所述包装层的底层与所述水解的原硅酸四烷基酯(表示为二氧化硅)的重量比不高 比0.9。

    Ink receiving layers
    39.
    发明授权
    Ink receiving layers 失效
    油墨接收层

    公开(公告)号:US5418078A

    公开(公告)日:1995-05-23

    申请号:US184476

    申请日:1994-01-21

    CPC classification number: B41M5/5245 Y10T428/31855

    Abstract: An ink-jet recording element is provided comprising a polymeric film substrate or a resin coated paper substrate and at least one ink-receiving layer coated thereon comprising at least one binder and at least one mordanting agent characterized in that said mordanting agent comprises a polymer containing a phosphonium moiety. Preferably said mordanting agent consists of a copolymer of ethylenically unsaturated monomers containing a phosphonium moiety co-polymerized with N-vinyl imidazole or 2-methyl-2-vinyl imidazole and optionally other co-polymerizable monomers or of a mixture of from 5 to 70% by weight, of a polymer containing a phosphonium moiety, and obtained by homo- or co-polymerization of ethylenically unsaturated monomers and from 30 to 95% by weight, of a second polymer, which is free from cationic groups and has been obtained by homo- or co-polymerization of N-vinyl imidazole or 2-methyl-2-vinyl imidazole and optionally other co-polymerizable monomers.

    Abstract translation: 提供一种喷墨记录元件,其包括聚合物膜基材或树脂涂布的纸基材和至少一个涂布在其上的油墨接收层,其包含至少一种粘合剂和至少一种媒染剂,其特征在于所述媒染剂包含含有 鏻部分。 所述媒染剂优选由烯属不饱和单体的共聚物组成,该共聚物含有与N-乙烯基咪唑或2-甲基-2-乙烯基咪唑和任选的其它可共聚单体共聚的鏻部分或5-70% 重量的包含鏻部分的聚合物,并且通过烯键式不饱和单体的均聚或共聚获得,和30至95重量%的第二聚合物,其不含阳离子基团并且通过均聚物获得 - 或N-乙烯基咪唑或2-甲基-2-乙烯基咪唑和任选的其它可共聚单体共聚。

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