Heat mode sensitive imaging element for making positive working printing plates
    141.
    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:US06472119B1

    公开(公告)日:2002-10-29

    申请号:US09476089

    申请日:2000-01-03

    Abstract: According to the present invention there is provided a heat ode imaging element for making a lithographic printing plate having n 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 or insoluble for an alkaline developer wherein said first layer and said top layer may be one and the same layer and said first layer and said top layer being the imaging layers; characterized in that said imaging layers have a glass transition temperature of at least 57° C.

    Abstract translation: 根据本发明,提供了一种用于制造平版印刷版的平版印刷版,其具有亲水表面的具有可溶于碱性水溶液的聚合物的第一层和具有亲水表面的第一层, 作为第一层的光刻基底,其顶层对于碱性显影剂是IR敏感的且不可穿透的或不溶的,其中所述第一层和所述顶层可以是同一层,所述第一层和所述顶层是成像层; 其特征在于,所述成像层的玻璃化转变温度至少为57℃

    Method for making positive working printing plates
    142.
    发明授权
    Method for making positive working printing plates 失效
    制作正版印刷版的方法

    公开(公告)号:US06458510B1

    公开(公告)日:2002-10-01

    申请号:US09476109

    申请日:2000-01-03

    Abstract: According to the present invention there is provided a method for the preparation of a lithographic printing plate comprising the steps of exposing with IR light an imaging element comprising 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 unpenetratable for or insoluble in an alkaline developer wherein said first layer and said top layer may be one and the same layer, said imaging element comprising a siloxane surfactant; developing said exposed imaging element with an alkaline solution; rinsing said developed imaging element with water or an aqueous solution; gumming said developed imaging element with a baking gum solution; subjecting said gummed imaging element to a thermal treatment at a temperature above 50° C.; characterized in that said rinsing is carried out with a brushing and/or with water containing a surfactant.

    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:用IR光照射成像元件,该成像元件在光刻基底上具有亲水表面,第一层包括可溶于碱性水溶液的聚合物 以及与所述第一层在所述平版印刷基底的相同侧上的顶层,所述第一层的顶层对于碱性显影剂是IR敏感的且不可渗透的或不溶于碱性显影剂,其中所述第一层和所述顶层可以是同一层,所述成像 元素,其包含硅氧烷表面活性剂;用碱性溶液显影所述暴露的成像元件;用水或水溶液漂洗所述显影的成像元件;用烘焙胶溶液涂覆所述显影的成像元件;使所述胶粘的成像元件在 温度高于50℃;其特征在于,所述冲洗是用刷洗和/或用水进行的 涂上表面活性剂。

    Computer-to-plate by ink jet
    143.
    发明授权
    Computer-to-plate by ink jet 失效
    电脑到平板喷墨

    公开(公告)号:US06457413B1

    公开(公告)日:2002-10-01

    申请号:US09864121

    申请日:2001-05-23

    CPC classification number: B41C1/1066

    Abstract: A method for preparing a lithographic printing plate by means of ink jet is disclosed. The ink jet fluid contains an oleophilizing compound as defined in the description. Preferred compounds are 8-hydroxyquinolines, 7-hydroxybenzimidazoles, and 7-hydroxybenztriazoles.

    Abstract translation: 公开了一种通过喷墨制备平版印刷版的方法。 喷墨流体包含如说明书中所定义的含油化合物。 优选的化合物是8-羟基喹啉,7-羟基苯并咪唑和7-羟基苯并三唑。

    Method for preparing a lithographic printing plate by ablation of a heat sensitive ablatable imaging element
    144.
    发明授权
    Method for preparing a lithographic printing plate by ablation of a heat sensitive ablatable imaging element 失效
    通过消融热敏可燃成像元件制备平版印刷版的方法

    公开(公告)号:US06455230B1

    公开(公告)日:2002-09-24

    申请号:US09577484

    申请日:2000-05-25

    CPC classification number: B41C1/1033 Y10S430/145 Y10S430/146 Y10S430/165

    Abstract: According to the present invention there is provided a method for preparing a lithographic printing plate, the method including the steps of (1) providing an imaging element including on a lithographic hydrophilic support as contiguous top layer a heat-sensitive coating including a compound capable of converting light to heat and a compound, which becomes more hydrophilic under the action of heat; (2) imagewise exposing the imaging heat-sensitive composition with a high intensity laser emitting a laser beam with an intensity at the surface of the heat-sensitive composition of tat least 2 mW/&mgr;m2 thereby at least partially removing the heat-sensitive composition to expose at least partially the lithographic support.

    Abstract translation: 根据本发明,提供了一种制备平版印刷版的方法,该方法包括以下步骤:(1)提供一种成像元件,该成像元件包括在平版印刷亲水载体上作为连续顶层的热敏涂层,其包含能够 将光转化成热和化合物,其在热作用下变得更亲水;(2)使用发射激光束的高强度激光以热敏组合物的表面强度成像曝光成像热敏组合物 至少2mW / mum2,从而至少部分地去除热敏组合物以至少部分地暴露平版印刷载体。

    Method for making positive working printing plates
    145.
    发明授权
    Method for making positive working printing plates 失效
    制作正版印刷版的方法

    公开(公告)号:US06455229B1

    公开(公告)日:2002-09-24

    申请号:US09476108

    申请日:2000-01-03

    Abstract: According to the present invention there is provided a method for the preparation of a lithographic printing plate comprising the steps of exposing with IR light an imaging element comprising 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 unpenetratable for or insoluble in an alkaline developer wherein said first layer and said top layer may be one and the same layer, said imaging element comprising a siloxane surfactant; developing said exposed imaging element with an alkaline solution; gumming said developed imaging element with a baking gum solution; subjecting said gummed imaging element to a thermal treatment at a temperature above 50° C.; characterized in that said baking gum solution contains at least one surfactant making the contact angle between the baking gum solution and the surface of the plate less than 68° and/or at least one viscosity-regulating polymer making the viscosity of the baking gum solution between 1.7 cP and 5.0 cP.

    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:用IR光照射成像元件,该成像元件在光刻基底上具有亲水表面,第一层包括可溶于碱性水溶液的聚合物 以及与所述第一层在所述平版印刷基底的相同侧上的顶层,所述第一层的顶层对于碱性显影剂是IR敏感的且不可渗透的或不溶于碱性显影剂,其中所述第一层和所述顶层可以是同一层,所述成像 元素,其包含硅氧烷表面活性剂;用碱性溶液显影所述暴露的成像元件;用烘焙胶溶液涂覆所述显影的成像元件;使所述胶状成像元件在高于50℃的温度下进行热处理;其特征在于,所述烘烤 胶溶液含有至少一种表面活性剂,其使得烘焙胶溶液与表面之间的接触角 小于68°的板和/或至少一种粘度调节聚合物,其使烘焙胶溶液的粘度在1.7cP和5.0cP之间。

    Heat sensitive imaging element and method for making a printing plate therewith
    146.
    发明授权
    Heat sensitive imaging element and method for making a printing plate therewith 失效
    热敏成像元件及其制造方法

    公开(公告)号:US06391516B1

    公开(公告)日:2002-05-21

    申请号:US08751764

    申请日:1996-11-08

    Abstract: The present invention discloses an imaging element comprising on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto, characterised in that said image forming layer further comprises a cross-linking agent capable of cross-linking said hydrophilic binder upon heating in a ratio between 1:100 and 200:1 by weight versus the hydrophilic binder. The present invention further provides a method for making a printing plate therewith. According to this method, the above imaging element is preferably exposed by means of a laser and is subsequently developed with plain water or an aqueous liquid.

    Abstract translation: 本发明公开了一种成像元件,包括在光刻基底的亲水表面上,包含分散在亲水性粘合剂中的疏水性热塑性聚合物颗粒的成像层和(ii)能够将光转化成热的化合物,所述化合物包含在所述图像中 形成层或与其相邻的层,其特征在于,所述图像形成层还包含交联剂,所述交联剂能够以相对于所述亲水性粘合剂的重量比为1:100至200:1的比例加热所述亲水性粘合剂。 本发明还提供了一种用于制造印版的方法。 根据该方法,上述成像元件优选通过激光曝光,随后用普通水或含水液体显影。

    Heat mode sensitive imaging element for making positive working printing plates
    147.
    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:US06342336B2

    公开(公告)日:2002-01-29

    申请号:US09263110

    申请日:1999-03-05

    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 but not in water and less than 5% by weight versus the polymer, soluble in the aqueous alkaline solution of a hydrophilic polymer 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 or insoluble in 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 compound selected from the group consisting of a polymer in an amount from 30 mg to 500 mg/m2, a triaryl methane dye and a phthalocyanine dye.

    Abstract translation: 根据本发明,提供了一种用于制造平版印刷版的平版印刷版,所述平版印刷版在具有亲水表面的平版印刷版上具有可溶于碱性水溶液而不在水中的小于5%的包含聚合物的第一层, 相对于聚合物,可溶于亲水性聚合物的碱性水溶液中,并且与作为第一层的平版印刷基底的相同侧上的顶层是顶层对IR敏感且不可穿透或不溶于碱性显影剂,其中所述 第一层和所述顶层可以是同一层; 其特征在于,所述顶层含有选自30mg至500mg / m 2的聚合物,三芳基甲烷染料和酞菁染料的化合物。

    Method for making positive working printing plates from a heat mode sensitive image element
    148.
    发明授权
    Method for making positive working printing plates from a heat mode sensitive image element 失效
    从加热模式敏感图像元件制作正性印刷版的方法

    公开(公告)号:US06251563B1

    公开(公告)日:2001-06-26

    申请号:US09163371

    申请日:1998-09-30

    Abstract: According to the present invention there is provided a method for making lithographic printing plates including the following steps a) preparing a heat mode imaging element consisting of a lithographic base with a hydrophilic surface and a top layer which top layer is sensitive to IR-radiation, comprises a polymer, soluble in an aqueous alkaline solution and is unpenetrable for an alkaline developer containing SiO2 as silicates; b) exposing imagewise said heat mode imaging element to IR-radiation; c) developing said imagewise exposed heat mode imaging element with said alkaline developer so that the exposed areas of the top layer are dissolved and the unexposed areas of the top layer remain undissolved characterized in that said top layer includes an IR-absorbing pigment and 3,4,5-trimethoxybenzoic acid or a benzophenone.

    Abstract translation: 根据本发明,提供一种制备平版印刷版的方法,包括以下步骤:a)制备由具有亲水表面的光刻基底和顶层对IR辐射敏感的顶层组成的热模式成像元件,包括 一种可溶于碱性水溶液的聚合物,对于含有SiO 2的硅酸盐的碱性显影剂是不可穿透的; b)使成像的所述热模式成像元件暴露于IR辐射; c)用所述碱性显影剂显影所述成像曝光的热模式成像元件 顶层的暴露区域被溶解,并且顶层的未曝光区域保持未溶解,其特征在于所述顶层包括IR吸收颜料和3,4,5-三甲氧基苯甲酸或二苯甲酮。

    Method for making a driographic printing plate involving the use of a heat-sensitive imaging element
    149.
    发明授权
    Method for making a driographic printing plate involving the use of a heat-sensitive imaging element 失效
    制造涉及使用热敏成像元件的感光印版的方法

    公开(公告)号:US06197478B1

    公开(公告)日:2001-03-06

    申请号:US08916786

    申请日:1997-08-25

    Abstract: According to the present invention there is provided a method for making driographic printing plates comprising the image-wise exposure of a heat-sensitive recording material comprising on an ink-accepting support an image-forming layer containing hydrophobic thermoplastic polymer particles and a compound capable of converting light into heat, said compound being present in said image-forming layer or a layer adjacent thereto and a cured ink-repellant surface layer. After the exposure the printing plate is developed by wiping it with water or an aqueous solution before or after mounting it on the print cylinder of a printing press.

    Abstract translation: 根据本发明,提供了一种制造感光印版的方法,其包括在感光记录材料上成像曝光,该感光记录材料包括在受墨支持体上的含有疏水性热塑性聚合物颗粒的成像层和能够 将光转化成热,所述化合物存在于所述图像形成层中或与其相邻的层和固化的防墨表面层。 曝光后,通过在将其安装在印刷机的印刷滚筒上之前或之后用水或水溶液擦拭印刷印版。

Patent Agency Ranking