Thermally imageable positive-working lithographic printing plate precursor and method for imaging
    1.
    发明授权
    Thermally imageable positive-working lithographic printing plate precursor and method for imaging 失效
    可热成像正性平版印刷版前体和成像方法

    公开(公告)号:US06458511B1

    公开(公告)日:2002-10-01

    申请号:US09589335

    申请日:2000-06-07

    IPC分类号: G03F730

    摘要: A radiation-sensitive composition comprises: (i) at least one component capable of absorbing IR radiation; and (ii) a diazonium polycondensation product soluble in an organic solvent; with the proviso that the composition does not contain components capable of reacting with decomposition products produced from IR radiation exposure of the diazonium polycondensation product. The composition may additionally comprise a polymeric binder of the type useful for conventional negative-working printing plates. The composition is suitable for preparing thermally imageable printing plate precursors and printing plates and may also be used in a method for providing an image on such plate precursors and printing plates.

    摘要翻译: 辐射敏感组合物包含:(i)至少一种能够吸收IR辐射的组分; 和(ii)可溶于有机溶剂的重氮缩聚产物; 条件是组合物不含有能够与由重氮缩聚产物的IR辐射暴露产生的分解产物反应的组分。 该组合物可另外包含可用于常规负性印刷版的类型的聚合物粘合剂。 该组合物适用于制备可热成像的印版前体和印版,并且也可用于在这种印版前体和印版上提供图像的方法。

    Sulfonamido substituted acetal polymers
    2.
    发明授权
    Sulfonamido substituted acetal polymers 失效
    磺酰胺取代的缩醛聚合物

    公开(公告)号:US5849842A

    公开(公告)日:1998-12-15

    申请号:US917057

    申请日:1997-08-22

    摘要: Binders useful in photosensitive compositions contain units A, B, C and D, wherein A is present in an amount of 0.5 to 15 wt. % and is of the formula ##STR1## B is present in an amount of 10 to 35 wt. % and is of the formula ##STR2## C is present in an amount of 10 to 50 wt. % and is of the formula ##STR3## wherein R.sup.1 is methyl, ethyl, propyl, and D is present in an amount of 25 to 70 wt. % and is of the formula ##STR4## wherein n is an integer of from 1 to 3 and R.sup.2, R.sup.3 are hydrogen or methyl and R.sup.4 is alkyl, aralkyl or aryl.

    摘要翻译: 用于光敏组合物的粘合剂含有单元A,B,C和D,其中A以0.5至15wt。 %且为式35重量%。 %,并且具有式(B)的化合物C的存在量为10至50wt。 %,并且具有式(C)的式(C)其中R 1是甲基,乙基,丙基和D以25至70重量%的量存在。 %,具有式R 2,R 3是氢或甲基,R 4是烷基,芳烷基或芳基。

    Acetal polymers and use thereof in photosensitive compositions and
lithographic printing plates
    3.
    发明授权
    Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates 失效
    乙缩醛聚合物及其在光敏组合物和平版印刷版中的应用

    公开(公告)号:US5700619A

    公开(公告)日:1997-12-23

    申请号:US675024

    申请日:1996-07-03

    摘要: This invention relates to a binder containing the units A, B, C, D and E, wherein A is present in an amount of 10 to 60 mole % and is of the formula ##STR1## B is present in an amount of 1 to 30 mole % and is of the formula ##STR2## C is present in an amount of 5 to 60 mole % and is of the formula ##STR3## D is present in an amount of 0 to 60 mole % and is of the formula ##STR4## E is present in an amount of 1 to 40 mole % and is of the formula ##STR5## wherein X is an aliphatic, aromatic or araliphatic spacer group, R.sup.1 is hydrogen or an aliphatic, aromatic or araliphatic group, R.sup.2, R.sup.3 and R.sup.4 are hydrogen or alkyl groups with carbon numbers of from 1 to 18 and Y is a saturated or unsaturated chain- or ring-shaped spacer group, and photosensitive compositions containing this binder.

    摘要翻译: 本发明涉及含有单元A,B,C,D和E的粘合剂,其中A以10至60摩尔%的量存在并且具有式30摩尔%并且具有式(B) )C以5至60摩尔%的量存在并且具有式(C)的化合物:D的存在量为0至60摩尔%,并且具有式0摩尔%,并且具有式 (E)其中X是脂族,芳族或芳脂族间隔基,R 1是氢或脂族,芳族或芳脂族基团,R 2,R 3和R 4是氢或碳数为1至18的烷基,Y是 饱和或不饱和的链或环形间隔基,以及含有该粘合剂的光敏组合物。

    Thermal digital lithographic printing plate
    4.
    发明授权
    Thermal digital lithographic printing plate 有权
    热数码平版印刷版

    公开(公告)号:US06352812B1

    公开(公告)日:2002-03-05

    申请号:US09301866

    申请日:1999-04-29

    IPC分类号: G03F709

    摘要: A thermal lithographic printing plate, which can be imaged by thermal energy typically by imagewise exposure with an infrared emitting laser, a thermal printing head, etc., is made up of a hydrophilic substrate, and a composite layer structure composed of two layer coatings. Preferably, the first layer of the composite is composed of an aqueous developable polymer mixture containing a photothermal conversion material which is contiguous to the hydrophilic substrate. The second layer of the composite is composed of one or more non-aqueous soluble polymers which are soluble or dispersible in a solvent which does not dissolve the first layer. The plate is exposed with an infrared laser or a thermal print head, and upon aqueous development of the imaged plate, the exposed portions are removed exposing hydrophilic substrate surfaces receptive to conventional aqueous fountain solutions. The unexposed portions contain the ink-receptive image areas. The second layer may also contain a photothermal conversion material. Alternatively, the composite layer may be free of photothermal conversion material when thermal imaging is carried out using a thermal printing head.

    摘要翻译: 可以通过热能成像通过用红外发射激光成像曝光,热打印头等来成像的热平版印刷版由亲水基材和由两层涂层组成的复合层结构构成。 优选地,复合材料的第一层由包含与亲水基底邻接的光热转换材料的水性可显影聚合物混合物组成。 复合材料的第二层由一种或多种可溶于或不溶于不溶于第一层的溶剂中的非水溶性聚合物组成。 该板用红外激光或热打印头曝光,并且在成像板的水性显影时,去除曝光部分,暴露接受常规水性喷泉溶液的亲水底物表面。 未曝光部分包含吸墨图像区域。 第二层也可以含有光热转换材料。 或者,当使用热敏打印头进行热成像时,复合层可以不含光热转换材料。

    Thermal lithographic printing plates
    5.
    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。

    Acetal polymers and use thereof in photosensitive compositions and
lithographic printing plates
    6.
    发明授权
    Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates 失效
    乙缩醛聚合物及其在光敏组合物和平版印刷版中的应用

    公开(公告)号:US5985996A

    公开(公告)日:1999-11-16

    申请号:US917631

    申请日:1997-08-22

    摘要: This invention relates to a binder containing the units A, B, C, D and E, wherein A is present in an amount of 10 to 60 mole % and is of the formula ##STR1## B is present in an amount of 1 to 30 mole % and is of the formula ##STR2## C is present in an amount of 5 to 60 mole % and is of the formula ##STR3## D is present in an amount of 0 to 60 mole % and is of the formula ##STR4## and E is present in an amount of 1 to 40 mole % and is of the formula ##STR5## wherein X is an aliphatic, aromatic or araliphatic spacer group,R.sup.1 is hydrogen or an aliphatic, aromatic or araliphatic group,R.sup.2, R.sup.3 and R.sup.4 are hydrogen or alkyl groups with carbon numbers of from 1 to 18 andY is a saturated or unsaturated chain- or ring-shaped spacer group, and photosensitive compositions containing this binder.

    摘要翻译: 本发明涉及含有单元A,B,C,D和E的粘合剂,其中A以10至60摩尔%的量存在,并且式B的存在量为1至30摩尔%,和 式C的存在量为5至60摩尔%,并且式D的存在量为0至60摩尔%,并且具有下式,并且E以1至40摩尔的量存在 %,并具有下式:其中X是脂族,芳族或芳脂族间隔基,R 1是氢或脂族,芳族或芳脂族基团,R 2,R 3和R 4是氢或碳数为1至18的烷基和Y 是饱和或不饱和的链状或环状间隔基团,以及含有该粘合剂的光敏组合物。

    Process for making thermal negative printing plate
    8.
    发明授权
    Process for making thermal negative printing plate 失效
    制造热负版印刷板的工艺

    公开(公告)号:US06599676B2

    公开(公告)日:2003-07-29

    申请号:US10039164

    申请日:2002-01-03

    IPC分类号: G03F7038

    摘要: A process for making thermally imageable negative working compositions comprising the steps of: (1) providing a patterning composition layer on a substrate, said patterning composition comprising: (a) at least one thermal-generator acid generator, (b) at least one cross-linking resin or compound; (c) at least one binder resin comprising a polymer containing at least one reactive pendent group selected from the group, consisting of hydroxyl, carboxylic acid, sulfonamide, alkoxymethylamide and mixtures thereof; and (d) at least one infrared absorber; (2) subjecting the patterning composition layer to a two-stage radiation exposure; (a) one stage being a flood UV-exposure; and (b) the other stage being a imagewise infrared exposure stage; (3) treating the exposed patterning composition with heat energy; and (4) developing the heat treated, exposed patterning composition with an aqueous alkaline developer to remove the non-imaged areas of the patterning composition and leaving the imaged areas substantially unaffected.

    摘要翻译: 一种制备可热成像负性组合物的方法,包括以下步骤:(1)在基底上提供图案化组合物层,所述图案化组合物包括:(a)至少一个热发生器酸发生剂,(b)至少一个十字 连接树脂或化合物;(c)至少一种包含含有至少一个选自羟基,羧酸,磺酰胺,烷氧基甲基酰胺及其混合物的反应性侧基的聚合物的粘合剂树脂; 和(d)至少一个红外线吸收剂;(2)使图案化组合物层进行两级辐射曝光;(a)一个阶段是泛光UV曝光; 和(b)另一阶段是成像红外曝光阶段;(3)用热能处理曝光的图案化组合物; 和(4)用含水碱性显影剂显影经热处理的曝光的图案化组合物以除去图案化组合物的非成像区域,并使成像区域基本上不受影响。

    Thermal digital lithographic printing plate
    9.
    发明授权
    Thermal digital lithographic printing plate 有权
    热数码平版印刷版

    公开(公告)号:US06534238B1

    公开(公告)日:2003-03-18

    申请号:US09592895

    申请日:2000-06-13

    IPC分类号: G03F7038

    摘要: A thermally imageable element, useful as a lithographic printing plate precursor is disclosed. The element comprises a hydrophilic substrate; an underlayer comprising a first polymeric material; and an ink-receptive top layer comprising a second polymeric material and a solubility-suppressing component. The solubility-suppressing component may be a separate dissolution inhibitor compound and/or the second polymeric material may also function as a solubility-suppressing component. On thermal exposure the exposed regions of the top layer becomes more readily soluble in an aqueous developer, allowing the developer to remove the top layer and reveal the surface of the hydrophilic substrate. The lithographic printing plate thus formed has excellent properties, including the absence of sludging of the developer.

    摘要翻译: 公开了可用作平版印刷版原版的可热成像元件。 元件包括亲水基底; 包含第一聚合物材料的底层; 以及包含第二聚合物材料和溶解度抑制组分的吸墨顶层。 溶解性抑制成分可以是单独的溶解抑制剂化合物和/或第二聚合物材料也可以作为溶解度抑制成分起作用。 在热曝光的情况下,顶层的暴露区域变得更容易溶于水性显影剂,使显影剂除去顶层并露出亲水基材的表面。 这样形成的平版印刷版具有优异的性能,包括不存在显影剂的污泥。