Negative-working lithographic printing plate precursors
    1.
    发明授权
    Negative-working lithographic printing plate precursors 有权
    负性平版印刷版前体

    公开(公告)号:US09029063B2

    公开(公告)日:2015-05-12

    申请号:US13239435

    申请日:2011-09-22

    Abstract: A lithographic printing plate precursor comprises an imagable layer comprising a free radically polymerizable component, an initiator composition capable of generating free radicals upon exposure to imaging infrared radiation, an infrared radiation absorbing dye comprising an infrared radiation absorbing cation and a counter anion, and a polymeric binder. The salt formed between the infrared radiation absorbing cation and a tetraphenyl borate has solubility in 2-methoxy propanol at 20° C. that is greater than or equal to 3.5 g/l. The use of these infrared radiation absorbing dyes in the imagable layers provides a reduced tendency of these dyes to crystallize in the presence of tetraaryl borate counter anions.

    Abstract translation: 平版印刷版前体包括可成像层,其包含可自由基聚合的组分,在暴露于成像红外辐射时能够产生自由基的引发剂组合物,包含红外辐射吸收阳离子和抗衡阴离子的红外辐射吸收染料,以及聚合物 粘合剂 在红外辐射吸收阳离子和四苯基硼酸盐之间形成的盐在20℃下在2-甲氧基丙醇中具有大于或等于3.5g / l的溶解度。 在可成像层中使用这些红外辐射吸收染料提供这些染料在硼酸四芳基酯阴离子存在下结晶的趋势。

    Method of processing elements with coalesced particles
    2.
    发明授权
    Method of processing elements with coalesced particles 失效
    用合并颗粒处理元件的方法

    公开(公告)号:US08329382B2

    公开(公告)日:2012-12-11

    申请号:US12552362

    申请日:2009-09-02

    Abstract: Imageable elements can be imaged and then processed using a solution containing core-shell particles that are designed to complex with non-coalesced particles in the non-exposed regions of imaged element. A separate development step is not needed, but the non-coalesced particles and complexed core-shell particles can be removed from the resulting printing plate before using the resulting lithographic printing plate for printing.

    Abstract translation: 可成像元件可以成像,然后使用含有核 - 壳颗粒的溶液进行成像,该溶液设计成与成像元件的非曝光区域中的非聚结颗粒复合。 不需要单独的显影步骤,但是在使用所得的平版印刷版进行印刷之前,可以从得到的印刷版中除去非聚结颗粒和络合的核 - 壳颗粒。

    NEGATIVE-WORKING THERMAL IMAGEABLE ELEMENTS
    4.
    发明申请
    NEGATIVE-WORKING THERMAL IMAGEABLE ELEMENTS 有权
    负责工作的热图像元件

    公开(公告)号:US20100248097A1

    公开(公告)日:2010-09-30

    申请号:US12412400

    申请日:2009-03-27

    Abstract: Negative-working imageable elements have a hydrophilic substrate and a single thermally-sensitive imageable layer. This layer can include an infrared radiation absorbing compound and polymeric particles that coalesce upon thermal imaging. These coalesceable polymeric particles comprise a thermoplastic polymer and a colorant to provide improved visible contrast between exposed and non-exposed regions in the imaged element, such as lithographic printing plates.

    Abstract translation: 负性可成像元件具有亲水基材和单一的热敏可成像层。 该层可以包括红外辐射吸收化合物和在热成像时聚结的聚合物颗粒。 这些可聚结聚合物颗粒包括热塑性聚合物和着色剂,以在成像元件(例如平版印刷版)中的曝光区域和非曝光区域之间提供改善的可见对比度。

    Printing plate precursor comprising solvent-resistant copolymer
    5.
    发明授权
    Printing plate precursor comprising solvent-resistant copolymer 失效
    包含耐溶剂共聚物的印版前体

    公开(公告)号:US07060415B2

    公开(公告)日:2006-06-13

    申请号:US11130797

    申请日:2005-05-17

    Abstract: The present invention provides a positive-working, thermally imageable element generally comprising a multi-layered imageable coating. The invention provides an imageable element comprising a substrate, an ink-receptive top layer, and an underlayer, the underlayer including a specific copolymer described herein. The copolymer can be a polymer comprising constitutional units derived from: a) a monomer having a cyclic urea group; b) a monomer comprising an N-substituted maleimide; c) a (meth)acrylamide or (meth)acrylate monomer; and d) a (meth)acrylic acid or vinyl benzoic acid monomer. In another embodiment, the copolymer can be a polymer comprising constitutional units derived from: a) a monomer having a cyclic urea group; b) a (meth)acrylic acid or vinyl benzoic acid monomer; c) and a (meth)acrylonitrile monomer. The imageable element may be used to prepare a lithographic printing plate that is resistant to press chemistry and can optionally be baked to increase press runlength.

    Abstract translation: 本发明提供了通常包括多层可成像涂层的正性加工的可热成像元件。 本发明提供了一种可成像元件,其包括基底,油墨接受顶层和底层,底层包括本文所述的特定共聚物。 共聚物可以是包含衍生自以下的结构单元的聚合物:a)具有环状脲基团的单体; b)包含N-取代的马来酰亚胺的单体; c)(甲基)丙烯酰胺或(甲基)丙烯酸酯单体; 和d)(甲基)丙烯酸或乙烯基苯甲酸单体。 在另一个实施方案中,共聚物可以是包含衍生自以下的结构单元的聚合物:a)具有环状脲基团的单体; b)(甲基)丙烯酸或乙烯基苯甲酸单体; c)和(甲基)丙烯腈单体。 可成像元件可以用于制备耐压制化学的平版印刷版,并且可以任选地烘烤以增加压制长度。

    Method for the production of a printing plate using particle growing acceleration by an additive polymer
    6.
    发明授权
    Method for the production of a printing plate using particle growing acceleration by an additive polymer 失效
    使用添加剂聚合物使用颗粒生长加速的印刷版的制造方法

    公开(公告)号:US06706454B2

    公开(公告)日:2004-03-16

    申请号:US09899741

    申请日:2001-07-05

    Applicant: Mathias Jarek

    Inventor: Mathias Jarek

    CPC classification number: G03F7/0233

    Abstract: A coating solution useful in the preparation of printing plate precursors comprises: a) a radiation sensitive composition C comprising a phenolic resin; b) at least one thermoplastic polymer P which has a solubility in aqueous alkaline media ranging from sparingly soluble to insoluble; c) a first solvent component A which is capable of solubilizing both composition C and thermoplastic polymer P; d) a second solvent component B having a volatility less than component A, wherein component B is capable of volatilizing composition C but not thermoplastic polymer P, and composition C and thermoplastic P are homogeneously dissolved in a mixture of components A and B; and e) at least one further polymer AP having a higher molecular weight than the phenolic resin of composition C, wherein polymer AB is miscible with the phenolic resin and immiscible with thermoplastic polymer P. The coating provides a radiation-sensitive layer for the substrate, and the coating contains homogeneously distributed thermoplastic polymer particles.

    Abstract translation: 用于制备印版前体的涂布溶液包括:a)包含酚醛树脂的辐射敏感组合物C; b)至少一种热塑性聚合物P,其在含水碱性介质中具有从微溶到难溶的溶解度; c) 能够溶解组合物C和热塑性聚合物P的第一溶剂组分A; d)挥发性小于组分A的第二溶剂组分B,其中组分B能够挥发组合物C而不是热塑性聚合物P,组合物 C和热塑性P均匀地溶解在组分A和B的混合物中; 和)与聚合物C的酚醛树脂相比具有更高分子量的至少一种聚合物AP,其中聚合物AB可与酚醛树脂混溶并与热塑性聚合物P不混溶。涂层为基底提供辐射敏感层, 该涂层含有均匀分布的热塑性聚合物颗粒。

    Radiation-sensitive, positive working coating composition based on carboxylic copolymers
    7.
    发明授权
    Radiation-sensitive, positive working coating composition based on carboxylic copolymers 失效
    基于羧酸共聚物的辐射敏感的正性涂料组合物

    公开(公告)号:US06517988B1

    公开(公告)日:2003-02-11

    申请号:US09903824

    申请日:2001-07-12

    CPC classification number: G03F7/0233

    Abstract: A radiation-sensitive composition, positive-working coating compositions useful for the preparation of lithographic printing plates and lithographic printing plate precursors comprising the composition are disclosed. The composition comprises at least one quinonediazide compound and at least one carboxylic copolymer. The compositions produce lithographic printing plates that show high print run stability.

    Abstract translation: 公开了一种辐射敏感组合物,用于制备平版印刷版的正性涂料组合物和包含该组合物的平版印刷版前体。 该组合物包含至少一种醌二叠氮化合物和至少一种羧酸共聚物。 该组合物产生显示高印刷运行稳定性的平版印刷版。

    NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS
    8.
    发明申请
    NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS 有权
    负离子平版印刷机前驱板

    公开(公告)号:US20130323643A1

    公开(公告)日:2013-12-05

    申请号:US13482151

    申请日:2012-05-29

    Abstract: Negative-working lithographic printing plate precursor a negative-working imagable layer and an outermost water-soluble overcoat layer that is disposed directly on the negative-working imagable layer. The outermost water-soluble overcoat layer comprises: (1) one or more film-forming water-soluble polymeric binders, and (2) organic wax particles dispersed therein. The organic wax particles have an average largest dimension of at least 0.05 μm and up to and including 0.7 μm, as determined from a scanning electron micrographic of the dried outermost water-soluble overcoat layer. Useful organic wax particles include fluorinated or non-fluorinated hydrocarbon wax particles.

    Abstract translation: 负性平版印刷版前驱物是负作用的成像层和最外层的水溶性外涂层,其直接设置在负性可成像层上。 最外面的水溶性外涂层包括:(1)一种或多种成膜水溶性聚合物粘合剂,和(2)分散在其中的有机蜡颗粒。 有机蜡颗粒的平均最大尺寸为至少0.05μm,并且至多并包括0.7μm,由干燥的最外层水溶性外涂层的扫描电子显微镜确定。 有用的有机蜡颗粒包括氟化或非氟化烃蜡颗粒。

    PREPARING LITHOGRAPHIC PRINTING PLATES
    10.
    发明申请
    PREPARING LITHOGRAPHIC PRINTING PLATES 审中-公开
    制备平版印刷版

    公开(公告)号:US20120199028A1

    公开(公告)日:2012-08-09

    申请号:US13022714

    申请日:2011-02-08

    Abstract: Negative-working lithographic printing plate precursors can be imaged and then processed using a single processing solution in a processing apparatus without rinsing or gumming before the resulting lithographic printing plates are used for printing. The single processing solution (developer) comprises at least 2.5 weight % of a nonionic surfactant having an HLB value greater than 15 and at least 5 weight % of a polar organic solvent. Processing is accomplished without replenishment and reduced sludge formation is seen at the end of the processing cycle.

    Abstract translation: 负工作平版印刷版前体可以成像,然后使用处理设备中的单一处理溶液进行成像,而不用冲洗或上胶,然后将所得平版印刷版用于印刷。 单一处理溶液(显影剂)包含至少2.5重量%的HLB值大于15的非离子表面活性剂和至少5重量%的极性有机溶剂。 处理完成而无需补充,并且在处理周期结束时可以看到减少的污泥形成。

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