Relation to lithographic printing forms
    1.
    发明授权
    Relation to lithographic printing forms 有权
    与平版印刷版的关系

    公开(公告)号:US06280899B1

    公开(公告)日:2001-08-28

    申请号:US09483990

    申请日:2000-01-18

    IPC分类号: G03C176

    摘要: Thermally imageable lithographic printing plate precursors and heat-sensitive compositions for use in these printing plate precursors are disclosed. The compositions contain an aqueous developer soluble polymer, such as a phenolic resin; a compound that reduces the aqueous developer solubility of the polymer; and optionally, and infrared absorber. Examples of compounds that reduce the aqueous developer solubility of the polymer are those that contain at least one quarternized nitrogen atom, such as quinolinium compounds, benzothiazolium compounds, pyridinium compounds, and imidazoline compounds. On thermal imaging, the irradiated areas become more soluble in the aqueous developer and can be removed to form a positive image.

    摘要翻译: 公开了用于这些印版前体的可热成像的平版印刷版前体和热敏组合物。 组合物含有显影剂水溶性聚合物,例如酚醛树脂; 降低聚合物的水性显影剂溶解度的化合物; 和任选地,和红外线吸收剂。 降低聚合物的水性显影剂溶解度的化合物的实例是含有至少一个季铵化氮原子的化合物,例如喹啉鎓化合物,苯并噻唑鎓化合物,吡啶鎓化合物和咪唑啉化合物。 在热成像中,被照射的区域变得更易溶于含水显影剂,并且可以除去以形成正像。

    Articles having imagable coatings
    5.
    发明授权
    Articles having imagable coatings 有权
    具有可成像涂层的制品

    公开(公告)号:US06300038B1

    公开(公告)日:2001-10-09

    申请号:US09444125

    申请日:1999-11-19

    IPC分类号: G03C176

    摘要: A heat imagable article has, in a single layer polymeric coating or in an inner layer of a multi-layer polymeric coating on a substrate, a polymeric matrix material, for example a phenolic resin, and, dispersed therein, polymeric particles, for example of polyethylene or polytetrafluoroethylene. The coating may contain a radiation absorbing compound so that suitable electromagnetic radiation, preferably infra-red radiation, may be used to heat the coating imagewise. The presence of the particles increases the physical robustness of the layer.

    摘要翻译: 可热成像制品在单层聚合物涂层中或在基底上的多层聚合物涂层的内层中具有聚合物基质材料,例如酚醛树脂,并且其中分散有聚合物颗粒,例如 聚乙烯或聚四氟乙烯。 涂层可以含有辐射吸收化合物,使得可以使用合适的电磁辐射,优选红外辐射来对成像的涂层进行加热。 颗粒的存在增加了层的物理坚固性。

    Articles having imagable coatings
    6.
    发明授权
    Articles having imagable coatings 失效
    文章具有可塑涂层

    公开(公告)号:US06706466B1

    公开(公告)日:2004-03-16

    申请号:US09587813

    申请日:2000-06-06

    IPC分类号: G03F7038

    摘要: Imageable articles comprising positive working polymeric coatings on substrates are given a heat treatment as part of their manufacture, notably at a moderate temperature for an extended period. This heat treatment improves the development characteristics of the coatings in use. It has been found that by carrying out the heat treatment on articles wrapped in a water-impermeable material or in a humidity-enhanced oven, development characteristics may be further improved, especially adjacent to the edges of articles. The imageable articles include precursors for lithographic printing plates and for printed circuits.

    摘要翻译: 在基材上包含正性聚合物涂层的可成像制品作为其制造的一部分被给予热处理,特别是在中等温度下长时间。 该热处理改善了使用中的涂层的显影特性。 已经发现,通过对包裹在不透水材料或增湿烤箱中的物品进行热处理,可以进一步提高显影特性,特别是在物品边缘附近。 可成像制品包括平版印刷版和印刷电路用前体。

    Lithographic plate precursor
    8.
    发明授权
    Lithographic plate precursor 失效
    平版印刷版前体

    公开(公告)号:US06291134B1

    公开(公告)日:2001-09-18

    申请号:US09347848

    申请日:1999-07-08

    IPC分类号: G03F730

    CPC分类号: G03F7/021 G03F7/016

    摘要: There is described a method of preparing a lithographic plate which comprises coating on a lithographic support having a hydrophilic surface a layer of a radiation sensitive coating, imaging the coating then acting on the plate while on the press with aqueous fount solution to remove the unexposed areas of the coating, to reveal the hydrophilic surface of the plate and to leave an ink receptive image, wherein the radiation sensitive coating comprises a diazo salt of formula (I): wherein R1 is an anion, R2 and R3 represent optional substitution, R4 is —N— and —S— and R5 is a group which, after exposure of the plate renders the residue of the diazo salt oleophilic and fount solution insoluble.

    摘要翻译: 描述了一种制备平版印刷版的方法,该方法包括在具有亲水表面的平版印刷载体上涂覆一层辐射敏感涂层,使涂层成像,然后在用水性喷射溶液在压机上作用,从而去除未曝光的区域 以揭示板的亲水表面并留下吸墨图像,其中辐射敏感涂层包含式(I)的重氮盐:其中R1是阴离子,R2和R3代表任选取代,R4是 -N-和-S-,并且R 5是在曝光后使得重氮盐亲油性和喷剂溶液的残留物不溶解的基团。

    Lithographic plate precursor
    9.
    发明授权
    Lithographic plate precursor 失效
    平版印刷版前体

    公开(公告)号:US06265136B1

    公开(公告)日:2001-07-24

    申请号:US09348212

    申请日:1999-07-08

    IPC分类号: G03F730

    摘要: There is described a method of preparing a lithographic plate which comprises coating on a lithographic support having a hydrophilic surface, a layer of a heat sensitive coating, digitally imaging the coating, then processing the plate with water to remove the unexposed areas of the coating to reveal the hydrophilic surface of the plate and to leave an ink receptive image, wherein the heat sensitive coating comprises a diazo salt of formula (I): wherein R1 is an anion, R2 and R3 represent optional substitution, R4 is —N— or —S— and R5 is a group which, after exposure of the plate, renders the residue of the diazo salt oleophilic and fount solution insoluble.

    摘要翻译: 描述了一种制备平版印刷版的方法,该方法包括在具有亲水表面的光刻支架上涂覆一层热敏涂层,对该涂层进行数字成像,然后用水处理该板以将该涂层的未曝光区域除去 揭示板的亲水表面并留下吸墨图像,其中热敏涂层包含式(I)的重氮盐:其中R1是阴离子,R2和R3代表任选的取代基,R4是-N-或 - S-和R5是在曝光后使得重氮盐的亲油性和喷雾溶液的残留物不溶的基团。