Multilayer imageable elements
    22.
    发明授权
    Multilayer imageable elements 失效
    多层可成像元件

    公开(公告)号:US06893783B2

    公开(公告)日:2005-05-17

    申请号:US10681701

    申请日:2003-10-08

    摘要: Multilayer, positive working, thermally imageable elements are disclosed. The elements produce bakeable lithographic printing plates that are resistant to press chemistries. The elements have a substrate, an underlayer, and a top layer. The underlayer comprises a resin or resins having activated methylol and/or activated alkylated methylol groups, such as a resole resin, and a polymeric material that comprises, in polymerized form, (a) methacrylic acid; (b) N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, or a mixture thereof; and (c) one or more monomers of the structure: in which: R1 is H or methyl; X is —(CH2)n—, where n is an integer from 2 to 12; —(CH2—CH2—O)p—CH2—CH2—, where p is an integer from 1 to 3; or —Si(R′)(R″)— where R′ and R″ are each independently methyl or ethyl; and m is 1, 2, or 3.

    摘要翻译: 公开了多层,正性加工,可热成像的元件。 这些元件产生耐压印化学品的可烘烤平版印刷版。 这些元件具有基底,底层和顶层。 底层包括具有活化羟甲基和/或活化的烷基化羟甲基的树脂或树脂,例如甲阶酚醛树脂和聚合物形式的聚合物材料,(a)甲基丙烯酸; (b)N-苯基马来酰亚胺,N-环己基马来酰亚胺,N-苄基马来酰亚胺或其混合物; 和(c)一种或多种结构单体:其中:R 1是H或甲基; X是 - (CH 2)n - ,其中n是2至12的整数; - (CH 2 CH 2 -CH 2) - CH 2 -CH 2 - SUB> - ,其中p是1至3的整数; 或-Si(R')(R“) - 其中R'和R”各自独立地是甲基或乙基; m为1,2或3。

    Processless, laser imageable lithographic printing plate
    26.
    发明授权
    Processless, laser imageable lithographic printing plate 失效
    无源激光可成像平版印刷版

    公开(公告)号:US06261740B1

    公开(公告)日:2001-07-17

    申请号:US09244339

    申请日:1999-02-04

    IPC分类号: G03C176

    摘要: A lithographic printing surface is prepared using a thermal lithographic printing plate which requires no chemical development to remove areas of the imaged plate. The processless thermal lithographic printing plate has a sheet substrate; a hydrophilic layer on the sheet substrate; and a thermally sensitive imaging layer on the hydrophilic layer. The hydrophilic layer contains about 30 weight % of an aluminosilicate or clay, and preferably has an exterior surface which is micro-porous. The imaging layer preferably is micro-porous. The imaging layer is exposed imagewise using infrared laser radiation to produce an imaged layer. The imaged layer is treated with a conditioner liquid to produce a lithographic printing surface. By this method, the printing plate can be digitally imaged by infrared laser radiation so that the exposed areas become ink receptive and the non-exposed areas repel ink after simple treatment with a conditioner such as an aqueous surfactant solution such as a fountain solution containing an amphoteric surfactant.

    摘要翻译: 使用不需要化学显影去除成像板的区域的热平版印刷版制备平版印刷表面。 无机热平版印刷版具有片状基材; 在所述片基材上的亲水层; 和亲水层上的热敏成像层。 亲水层包含约30重量%的硅铝酸盐或粘土,并且优选具有微孔的外表面。 成像层优选是微孔的。 使用红外激光辐射使成像层成像曝光以产生成像层。 用调理液处理成像层以产生平版印刷表面。 通过这种方法,可以通过红外激光辐射对印版进行数字成像,使得曝光区域变为油墨接受,并且在用诸如表面活性剂水溶液的简单处理之后,非曝光区域排斥墨,所述表面活性剂水溶液例如含有 两性表面活性剂。

    Process for the production of lithographic printing plates
    27.
    发明授权
    Process for the production of lithographic printing plates 失效
    平版印刷版的制作方法

    公开(公告)号:US06187380B1

    公开(公告)日:2001-02-13

    申请号:US08995495

    申请日:1997-12-22

    IPC分类号: B41N108

    CPC分类号: G03F7/2018 B41C1/1066

    摘要: A presensitized printing plate intermediate having an image mask on a UV radiation transparent removable coating layer; and a printing plate produced directly by reactants which polymerize alone or in combination with other reactants precoated on the plate substrate to form a printable hard resin image. A method of digitally forming an image on said printing plate intermediate.

    摘要翻译: 一种在UV辐射透明可移除涂层上具有图像掩模的预敏印刷版中间体; 以及直接由反应物制备的印版,其单独聚合或与预先涂覆在印版基材上的其它反应物组合形成可印刷的硬树脂图像。 一种在所述印版中间数字形成图像的方法。

    Digital laser imagable lithographic printing plates
    28.
    发明授权
    Digital laser imagable lithographic printing plates 失效
    数码激光可成像平版印刷版

    公开(公告)号:US6143470A

    公开(公告)日:2000-11-07

    申请号:US494617

    申请日:1995-06-23

    摘要: Lithographic printing plates for wet or waterless offset printing are disclosed which can be imagewise exposed using a digitally controlled IR laser. The invention comprises a laser imagable lithographic printing plate comprising a substrate, a photosensitive coating on the substrate, and a water soluble laser ablatable top coating containing dyes or polymers that absorb infra-red, ultraviolet and visible light. Laminated transparent polymer films and/or peelable polymeric coatings films can be interposed between the coated substrate and a water soluble and/or organic solvent soluble laser ablatable top layer to augment plate production or image inscription on the plate.

    摘要翻译: 公开了用于湿或无水胶版印刷的平版印刷版,其可以使用数字控制的IR激光成像曝光。 本发明包括一种可激光成像的平版印刷版,其包括基底,基底上的感光涂层和含有吸收红外,紫外和可见光的染料或聚合物的水溶性激光可消泡顶涂层。 层压的透明聚合物膜和/或可剥离的聚合物涂层膜可以插入涂覆的基底和水溶性和/或有机溶剂可溶的激光可烧蚀顶层之间,以增加板上的板材生产或图像铭文。

    Thermal lithographic printing plates
    29.
    发明授权
    Thermal lithographic printing plates 失效
    热平版印刷版

    公开(公告)号:US6060217A

    公开(公告)日:2000-05-09

    申请号:US922190

    申请日:1997-09-02

    IPC分类号: B41C1/10 B41M5/36 G03F7/30

    摘要: A method for directly imaging a lithographic printing surface using infrared radiation without the requirement of pre- or post-UV-light exposure, or heat treatment employs a printing plate which contains a support with a hydrophilic surface overcoated with an imaging layer. The imaging layer contains at least one polymer having bonded pendent groups which are hydroxy, carboxylic acid, tert-butyl-oxycarbonyl, sulfonamide, amide, nitrile, urea, or combinations thereof; as well as an infrared absorbing compound. The imaging layer may contain a second polymer which has bonded pendent groups which are 1,2-napthoquinone diazide, hydroxy, carboxylic acid, sulfonamide, hydroxymethyl amide, alkoxymethyl amide, nitrile, maleimide, urea, or combinations thereof. The imaging layer may also contain a visible absorption dye, a solubility inhibiting agent, or both. In practice, the imaging layer is imagewise exposed to infrared radiation to produce exposed image areas in the imaged layer which have transient solubility in aqueous alkaline developing solution, so that solubility is gradually lost over a period of time until the imaged areas become as insoluble as non-imaged areas. Within a short time period of the imaging exposure, the imaged layer is developed with an aqueous alkaline developing solution to form the lithographic printing surface. In this method, the infrared radiation preferably is laser radiation which is digitally controlled.

    摘要翻译: 使用红外线辐射直接对平版印刷表面进行成像的方法,而不需要进行紫外线照射之前或之后的曝光或热处理,使用包含具有用成像层涂覆的亲水表面的载体的印刷版。 成像层含有至少一种具有键合的侧基的聚合物,其为羟基,羧酸,叔丁基 - 氧羰基,磺酰胺,酰胺,腈,脲或其组合; 以及红外线吸收剂。 成像层可以含有具有键合的侧基的第二聚合物,其为1,2-萘醌二叠氮,羟基,羧酸,磺酰胺,羟甲基酰胺,烷氧基甲基酰胺,腈,马来酰亚胺,脲或其组合。 成像层还可以含有可见吸收染料,溶解性抑制剂,或两者。 在实践中,成像层被成像地暴露于红外辐射,以在成像层中产生在含水碱性显影液中具有瞬时溶解度的曝光图像区域,使得溶解度在一段时间内逐渐丧失,直到成像区域变得不溶于 非成像区域。 在成像曝光的短时间内,用含水碱性显影液显影成像层以形成平版印刷表面。 在该方法中,红外辐射优选为数字控制的激光辐射。

    Radiation sensitive diazo sulfo-acrylic adducts and method for producing
a printing plate
    30.
    发明授权
    Radiation sensitive diazo sulfo-acrylic adducts and method for producing a printing plate 失效
    辐射敏感重氮磺基丙烯酸加合物及其印刷方法

    公开(公告)号:US5846685A

    公开(公告)日:1998-12-08

    申请号:US797675

    申请日:1997-01-31

    IPC分类号: G03F7/021 G03F7/095

    CPC分类号: G03F7/021

    摘要: A radiation sensitive composition containing an adduct of a diazonium resin having pendant diazonium groups, with a sulfonated acrylic copolymer having pendant sulfonate groups. The sulfonated acrylic copolymer contains an acrylic moiety and a sulfonated styryl or acrylic moiety. The copolymer may optionally contain styryl moieties. The composition is useful as a radiation sensitive layer in imaging elements for graphic arts applications and is particularly useful in preparing durable, long-wear, printing plates.

    摘要翻译: 一种辐射敏感性组合物,其含有具有侧面重氮基团的重氮化合物的加合物和具有磺酸根基侧基的磺化丙烯酸共聚物。 磺化丙烯酸共聚物含有丙烯酸部分和磺化苯乙烯基或丙烯酸部分。 共聚物可以任选地含有苯乙烯基部分。 该组合物可用作用于图形艺术应用的成像元件中的辐射敏感层,并且在制备耐用的长寿命印刷版中特别有用。