Image formation by thermal transfer
    1.
    发明授权
    Image formation by thermal transfer 失效
    通过热转印形成图像

    公开(公告)号:US5395730A

    公开(公告)日:1995-03-07

    申请号:US114082

    申请日:1993-08-31

    CPC分类号: G03F7/0285 G03F7/34

    摘要: A method is disclosed for the formation of an image comprising the steps of(1) image-wise exposing, in the presence of a photopolymerizable compound, a photosensitive element comprising a support and at least one photosensitive layer containing a silver halide sensitive to actinic radiation, an organic silver salt and a reducing agent,(2) heating said photosensitive layer while in contact with a receiving element and allowing non-photopolymerized compound in the non-exposed areas to transfer and penetrate in said receiving element, and,(3) separating said receiving element from said photosensitive element.The obtained image can be a useful visible image produced on at least one of the separated elements, or it can be a hydrophobic polymer image on a hydrophilic background formed in the finally separated-receiving element which is usable as a printing plate. In the former embodiment the receiving element comprises a support and a layer containing a pigment, e.g. carbon black. In the latter embodiment the receiving element must comprise a hydrophilic surface, e.g. a support coated with a hydrophilic layer, or a metal support having a hydrophilic surface.The photopolymerizable compound preferably bears one or more functional (meth)acrylate groups. Most preferably this compound is chosen from particular classes of reactive multifunctional monomers.

    摘要翻译: 公开了一种用于形成图像的方法,该方法包括以下步骤:(1)在可光聚合化合物存在下成像曝光包括载体的光敏元件和至少一个含有对光化辐射敏感的卤化银的感光层 ,有机银盐和还原剂,(2)在与接收元件接触的同时加热所述感光层,并且使非曝光区域中的非光聚合化合物转移并渗入所述接收元件,和(3) 将所述接收元件与所述感光元件分离。 获得的图像可以是在至少一个分离的元件上产生的有用的可见图像,或者它可以是形成在最终分离接收元件中的可用作印刷版的亲水性背景上的疏水性聚合物图像。 在前一实施例中,接收元件包括支撑体和含有颜料的层, 碳黑。 在后一实施例中,接收元件必须包括亲水表面,例如。 涂覆有亲水层的载体或具有亲水表面的金属载体。 可光聚合的化合物优选具有一个或多个官能(甲基)丙烯酸酯基团。 最优选地,该化合物选自特定类别的活性多官能单体。

    Liquid developer for development of electrostatic images comprising
onium salt polymer and an anion
    6.
    发明授权
    Liquid developer for development of electrostatic images comprising onium salt polymer and an anion 失效
    用于开发包含鎓盐聚合物和阴离子的静电图像的液体显影剂

    公开(公告)号:US4525446A

    公开(公告)日:1985-06-25

    申请号:US563561

    申请日:1983-12-20

    摘要: A liquid developer composition for rendering visible electrostatically charged areas. The composition contains in an electrically insulating non-polar carrier liquid having a volume resistivity of at least 10.sup.9 ohm.cm and a dielectric constant less than 3, dispersed coloring matter acting as toner particles and at least one onium salt polymer including recurring units incorporating an onium group together with an anion. The anion has at least one of the following characteristics:(1) contains a negatively charged atom or group of atoms which is sterically embraced by at least two non-ionic substituents containing at least 4 C atoms;(2) contains a negatively charged atom which is sterically embraced by at least 4 atoms selected from the group consisting of oxygen and halogen;(3) contains a negatively charged atom or group of atoms the negative charge of which is delocalized over other atoms linked to said atom or group of atoms;(4) is a radical anion,whereby the onium salt polymer is adsorbed with a net positive charge on the toner particles. An illustrative onium salt polymer species is a copolymer of isobutyl methacrylate, stearyl methacrylate and dimethylaminoethyl methacrylate that has been quaternized with methyl iodide and of which the iodide anions have been replaced by tetraphenyl boride anions.

    摘要翻译: 一种用于形成可见的静电电荷区域的液体显影剂组合物。 该组合物含有体积电阻率为至少109欧姆·厘米且介电常数小于3的电绝缘非极性载体液体,作为调色剂颗粒的分散着色剂和至少一种鎓盐聚合物,其包括含有 鎓基和阴离子。 阴离子具有以下特征中的至少一个:(1)含有带负电荷的原子或原子团,其被包含至少4个C原子的至少两个非离子取代基空间包围; (2)含有空位包含至少4个选自氧和卤素的原子的带负电荷的原子; (3)包含负电荷的原子或原子组,其负电荷与连接到所述原子或原子团的其它原子离域; (4)是自由基阴离子,其中鎓盐聚合物被吸附在调色剂颗粒上的净正电荷。 一种说明性的鎓盐聚合物物质是甲基丙烯酸异丁酯,甲基丙烯酸硬脂酯和甲基丙烯酸二甲氨基乙酯的共聚物,其已用甲基碘季铵化,其中碘化物阴离子被四苯基硼化物阴离子代替。

    Method of forming thermal transfer dye images
    8.
    发明授权
    Method of forming thermal transfer dye images 失效
    形成热转印染料图像的方法

    公开(公告)号:US5254434A

    公开(公告)日:1993-10-19

    申请号:US783243

    申请日:1991-10-28

    CPC分类号: G03F7/027 G03F7/34

    摘要: Method of forming thermal transfer dye images comprising exposing a recording element comprising at least one layer of an organic photochemical imaging composition comprising a heat-diffusible dye (precursor) monomer, said layer being permeable to said dye (precursor) monomer, to an image-wise distribution of actinic radiation to create a change in its permeability corresponding to said image-wise distribution of actinic radiation, wherein said change in permeability is brought about by the radiation-induced polymerization or crosslinking reaction of said organic photochemical imaging composition combined with a concurrent copolymerization or crosslinking reaction of said heat-diffusible dye (precursor) monomer, bringing said recording element in contact with an image-receiving element, overall heating at least one of said contacting elements to cause diffusion of the heat-diffusible dye (precursor) monomer from the areas having unchanged permeability and transfer to said image-receiving element, causing in the case of said dye precursor monomer reaction of said transferred dye precursor monomer with a reagent present in said recording element, in said image-receiving element, or in a fluid medium applied to said image-receiving element, to convert said transferred dye precursor monomer into a dye. The invention also provides a recording element for use according to this method.

    Fusible electrostatically attractable toner
    10.
    发明授权
    Fusible electrostatically attractable toner 失效
    易熔静电吸墨粉

    公开(公告)号:US4853311A

    公开(公告)日:1989-08-01

    申请号:US156957

    申请日:1988-02-18

    IPC分类号: G03G9/087 G03G9/09 G03G15/10

    摘要: A toner composition comprised of electrostatically attractable fusible powder particles, having an average particle size in the range of 1 to 100 .mu.m and a melt viscosity at 190.degree. C. in the range of 20 to 200 Pa.s, said powder particles comprising a coloring substance, a polymeric binder which consists essentially of a copolymer of:(1) styrene or styrene homologue,(2) an alkyl acrylate or alkyl methacrylate monomer wherein alkyl is a straight chain of at least 8 carbon atoms, and(3) a crosslinking monomer containing at least two ethylenically unsaturated groups,the binder copolymer constituting more than 50% of the total weight of the powder particles.

    摘要翻译: 一种调色剂组合物,其由静电吸引的易熔粉末颗粒组成,其平均粒度为1-100μm,熔体粘度为190℃,范围为20-200Pa·s,所述粉末颗粒包含 着色物质,基本上由以下共聚物组成的聚合物粘合剂:(1)苯乙烯或苯乙烯同系物,(2)丙烯酸烷基酯或甲基丙烯酸烷基酯单体,其中烷基是至少8个碳原子的直链,和(3) 含有至少两个烯属不饱和基团的交联单体,所述粘合剂共聚物构成粉末颗粒总重量的50%以上。