Mineral acids as charge adjuvants for positive liquid electrostatic
developers
    1.
    发明授权
    Mineral acids as charge adjuvants for positive liquid electrostatic developers 失效
    矿物酸作为阳性液体静电显影剂的电荷佐剂

    公开(公告)号:US5034299A

    公开(公告)日:1991-07-23

    申请号:US522277

    申请日:1990-05-11

    IPC分类号: G03G9/12 G03G9/135

    CPC分类号: G03G9/135

    摘要: A positive charged electrostatic liquid developer consisting essentially of(A) a non-polar liquid having a Kauri-butanol value of less than 30,(B) thermoplastic resin particles, average by area particle size of less than 10 .mu.m,(C) a charge director compound, and(D) at least one inorganic acid having a solubility of at least 0.5% based on the weight of charge director compound in a mixture of (A) and (C) and represented by the formula:H.sub.x Y wherein x is an integer from 1-4 and is equal to the negative charge on the anion,Y is a moiety selected from the group consisting of Cl.sup.-, F.sup.-, NO.sub.3.sup.-, NO.sub.2.sup.-, PO.sub.4.sup.-3, SO.sub.4.sup.-2, SO.sub.3.sup.-2, ClO.sub.4.sup.-, and IO.sub.4.sup.-.The liquid developer is useful in copying, color proofing, digital color proofing, making lithographic printing plates, and resists.

    System for replenishing liquid electrostatic developer
    2.
    发明授权
    System for replenishing liquid electrostatic developer 失效
    补充液体静电显影剂的系统

    公开(公告)号:US5471287A

    公开(公告)日:1995-11-28

    申请号:US237804

    申请日:1994-05-04

    CPC分类号: G03G15/104

    摘要: System for replenishing liquid developer in equipment, such as a printer, whereby the percent of toner solids is maintained at about 0.5 to 4% by weight based on the total weight of liquid developer, the system comprising at least one liquid toner concentrate vessel containing aggregates of thermoplastic resin particles, median particle size (volume weighted) greater than 15 .mu.m, and with 90% of the particles (volume weighted) not less than 30 .mu.m, composed of 50 to 100% by weight of particles and 0 to 50% by weight carrier liquid; a liquid vessel containing carrier liquid, means communicating each of said vessels with a dispersing vessel containing high shearing or high impact means wherein contents of the liquid toner concentrate vessel and the liquid vessel are supplied thereto and the resin particles are dispersed in the carrier liquid to form particles having a median particle size (volume weighted) of less than 15 .mu.m, and with 90% of the particles (volume weighted) less than 30 .mu.m in an amount of about 0.5 to 20% by weight of resin particles and about 99.5 to 80% by weight carrier liquid said dispersion being supplied and metered into the supply vessel containing original liquid developer to maintain the desired weight of solids. The system is useful in copying, proofing, etc., equipment, and the liquid developer is useful for making copies, proofs, lithographic printing plates and resists.

    摘要翻译: 用于补充诸如打印机的设备中的液体显影剂的系统,其中调色剂固体的百分比基于液体显影剂的总重量保持在约0.5至4重量%,该系统包含至少一个含有聚集体的液体调色剂浓缩容器 的热塑性树脂颗粒,中值粒径(体积加权)大于15μm,和90%的颗粒(体积加权)不小于30μm,由50至100重量%的颗粒和0至50 载体液体重量% 含有载体液体的液体容器,使每个所述容器与包含高剪切或高冲击力的分散容器连通,其中液体调色剂浓缩容器和液体容器的内容物被供应到树脂颗粒中,并将树脂颗粒分散在载体液体中 具有小于15μm的中值粒径(体积加权)和90%(小于30μm)的颗粒(体积加权)的颗粒的量为约0.5至20重量%的树脂颗粒和约 99.5至80重量%的载体液体,所述分散体被供应并计量到含有原始液体显影剂的供应容器中以保持所需重量的固体。 该系统可用于复印,打样等设备,液体显影剂可用于制作复印件,样张,平版印刷版和抗蚀剂。

    Process for preparing positive electrostatic liquid developers with
acidified charge directors
    3.
    发明授权
    Process for preparing positive electrostatic liquid developers with acidified charge directors 失效
    用酸化电荷导向剂制备正极静电液体开发者的方法

    公开(公告)号:US5066821A

    公开(公告)日:1991-11-19

    申请号:US522283

    申请日:1990-05-11

    IPC分类号: G03G9/12 G03G9/135

    CPC分类号: G03G9/12 G03G9/1355

    摘要: A process for preparing an improved positive-working electrostatic liquid developer comprising(A) dispersing at an elevated temperature in a vessel a thermoplastic resin and a nonpolar liquid having a Kauri-butanol value of less than 30, while maintaining the temperature in the vessel at a temperature sufficient to plasticize and liquify the resin and below that at which the nonpolar liquid degrades and the resin decomposes,(B) cooling the dispersion, either(1) without stirring to form a gel or solid mass, followed by shredding the gel or solid mass and grinding by means of particulate media;(2) with stirring to form a viscous mixture and grinding by means of particulate media; or(3) while grinding by means of particulate media to prevent the formation of a gel or solid mass;(C) separating the dispersion of toner particles having an average particle size of less than 30 .mu.m from the particulate media, and(D) adding to the dispersion subsequent to Step (A) a nonpolar liquid soluble ionic or zwitterionic charge director compound mixed with an acid having a pKa of

    Direct marking printer having a user configurable print resolution
    5.
    发明授权
    Direct marking printer having a user configurable print resolution 有权
    具有用户可配置打印分辨率的直接打标机

    公开(公告)号:US08287081B2

    公开(公告)日:2012-10-16

    申请号:US12725582

    申请日:2010-03-17

    IPC分类号: B41J29/393

    摘要: A modular printing device has been developed that may be configured with different numbers of ink colors and ink types and with a different cross-process direction print resolution for each ink color and ink type. The modular printing device configurable to print with multiple combinations of ink colors and ink types at different print resolutions includes a plurality of printhead arrays, each printhead array being configured to eject ink onto an image receiving surface at a first print resolution in a cross-process direction, a plurality of ink supplies, each ink supply being configured to store ink and to provide ink to one printhead array in the plurality of printhead arrays, and a controller configured to operate the plurality of printhead arrays at one of at least two combinations of ink colors and ink types, each combination identifying an ink color or an ink type to be ejected by each printhead array and the controller operating the printhead arrays ejecting a same ink color or a same ink type at a print resolution in the cross-process direction corresponding to the number of printhead arrays ejecting the same ink color or the same ink type.

    摘要翻译: 已经开发了可以配置不同数量的墨水颜色和墨水类型以及针对每种墨水颜色和墨水类型具有不同的跨工艺方向打印分辨率的模块化印刷装置。 可配置为以不同打印分辨率的墨水颜色和墨水类型的多种组合进行打印的模块化打印装置包括多个打印头阵列,每个打印头阵列被配置为在交叉处理中以第一打印分辨率将墨水喷射到图像接收表面上 方向,多个墨水供应,每个墨水供应构造成存储墨水并将墨水提供给多个打印头阵列中的一个打印头阵列;以及控制器,被配置为以至少两种组合 墨水颜色和墨水类型,每种组合识别由每个打印头阵列喷射的墨水颜色或墨水类型,并且操作打印头阵列的控制器以跨过程方向的打印分辨率喷射相同的墨水颜色或相同墨水类型 对应于喷射相同油墨颜色或相同油墨类型的打印头阵列的数量。

    Method for transferring a toner image
    8.
    发明授权
    Method for transferring a toner image 失效
    转印调色剂图像的方法

    公开(公告)号:US5567565A

    公开(公告)日:1996-10-22

    申请号:US275481

    申请日:1994-07-15

    IPC分类号: G03G15/16 G03G13/16

    CPC分类号: G03G15/162 Y10T428/31823

    摘要: An intermediate transfer member achieves substantially 100% toner transfer by containing a fluorocarbon elastomer containing less than 60 mole % vulnerable sites in the fluorocarbon chain. A high resolution image can be produced in an image developing system containing such a fluorocarbon elastomer. The fluorocarbon elastomer reduces the charge exchange between toner particles and the intermediate transfer member, and also reduces charge exchange between charge directors in liquid developers and the intermediate transfer member.

    摘要翻译: 中间转印部件通过含有在碳氟化合物链中含有少于60摩尔%脆弱部位的氟碳弹性体来实现基本上100%的调色剂转印。 可以在包含这种氟碳弹性体的图像显影系统中产生高分辨率图像。 碳氟化合物弹性体减少了调色剂颗粒与中间转印体之间的电荷交换,并且还降低了液体显影剂中的电荷导向剂与中间转印体之间的电荷交换。

    Liquid developer compositions with oxygen containing copolymers
    9.
    发明授权
    Liquid developer compositions with oxygen containing copolymers 失效
    含有含氧共聚物的液体显影剂组合物

    公开(公告)号:US5565297A

    公开(公告)日:1996-10-15

    申请号:US297080

    申请日:1994-08-29

    IPC分类号: G03G9/13 G03G9/135

    摘要: A liquid developer comprised of a liquid, thermoplastic resin particles, a nonpolar liquid soluble charge director comprised of at least one oxygen containing group with from 1 to 5 oxygen atoms covalently bound to a quaternized ammonium nitrogen in an AB diblock copolymer or an ABA triblock copolymer wherein the A block is polar and is an ammonium containing polymer, and the B block is nonpolar and is a nonpolar fluid soluble polymer, and wherein the A blocks possess a number average molecular weight range of from about 200 to about 10,000 and the B blocks possess a number average molecular weight range of from about 2,000 to 50,000 and the ratio of weight average molecular weight M.sub.w to number average molecular weight M.sub.n is 1 to 5.

    摘要翻译: 一种液体显影剂,由液体,热塑性树脂颗粒,非极性液体可溶性电荷导向剂组成,所述非极性液体可溶电荷导向剂由至少一个含有氧的基团组成,所述含氧基团与AB二嵌段共聚物或ABA三嵌段共聚物中的季铵化铵共价结合, 其中A嵌段是极性的并且是含铵聚合物,并且B嵌段是非极性的并且是非极性流体可溶性聚合物,并且其中所述A嵌段具有约200至约10,000的数均分子量范围,并且所述B嵌段 数均分子量范围为约2,000〜50,000,重均分子量Mw与数均分子量Mn的比例为1〜5。