Method of cleaning an ink storage material
    3.
    发明授权
    Method of cleaning an ink storage material 失效
    清洁墨水储存材料的方法

    公开(公告)号:US5683520A

    公开(公告)日:1997-11-04

    申请号:US585230

    申请日:1996-01-11

    摘要: Several methods are provided for cleaning felt or foam materials that are used to store and deliver ink, particularly ink supplied to ink jet printheads in an ink jet printing system. The felt materials are contaminated during manufacture, by various antistats, primarily phosphates. These antistats later react with the ink to create kogation and nozzle blocking problems as well as reduction of surface tension of the ink. The methods of the invention are directed to reducing the antistats left in the storage material after manufacture. In one method, the material is washed in heated softened water. Prior to loading the material in the wash, IPA is added to the heated wash. The material is washed through two Wash/Rinse cycles and then dried. The removal of the calcium in the wash water via softening prevents the precipitation of calcium-phosphate salts, which, when the material later contacts the ink, reduces nozzle clogging caused by these precipitates. The addition of the IPA increases removal of the phosphate antistats and greatly reduces the kogation and clogging problems. In a second embodiment, the storage material is washed in tap water to which has been added the IPA as well as a chelating agent. The chelating agent prevents the calcium from forming a precipitate with the remaining antistats in the material and provides the same function against any calcium or other divalent metal ions that may be introduced during ink flow from material to printhead nozzle.

    摘要翻译: 提供了几种用于清洁用于存储和输送墨水的毛毡或泡沫材料的方法,特别是在喷墨打印系统中供应给喷墨打印头的墨水。 毛毡材料在制造过程中受到各种抗静电剂,主要是磷酸盐的污染。 这些抗静电剂随后与油墨发生反应,产生卡格和喷嘴堵塞问题以及降低油墨的表面张力。 本发明的方法涉及减少制造后留在储存材料中的抗静电剂。 在一种方法中,将材料在加热的软化水中洗涤。 在将材料装入洗涤液之前,将IPA加入到加热的洗涤液中。 通过两次洗涤/漂洗循环洗涤材料,然后干燥。 通过软化去除洗涤水中的钙可防止磷酸钙盐的沉淀,当磷酸盐材料稍后与油墨接触时,会减少由这些沉淀引起的喷嘴堵塞。 IPA的添加增加了磷酸盐抗静电剂的去除,并大大减少了烧结和堵塞问题。 在第二个实施方案中,储存材料在添加了IPA的自来水以及螯合剂中洗涤。 螯合剂防止钙与材料中剩余的抗静电剂形成沉淀物,并且对于在从材料到打印头喷嘴的油墨流动期间可能引入的任何钙或其它二价金属离子提供相同的功能。

    Apparatus for electrowinning of metal from a waste metal material
    5.
    发明授权
    Apparatus for electrowinning of metal from a waste metal material 失效
    用于从废金属材料电解金属的装置

    公开(公告)号:US5183544A

    公开(公告)日:1993-02-02

    申请号:US635313

    申请日:1991-01-03

    IPC分类号: C25C1/08 C25C7/00

    CPC分类号: C25C7/007 C25C1/08

    摘要: An apparatus and method for electrowinning metal from particulate waste metal material is provided whereby waste metal material is mixed with an electrolyte to form a suspension. The suspension is separated into portions. A first portion enters the anodic compartment and a second portion is filtered and enters the cathodic compartment where metal is electrowon onto a rotating cathode.

    摘要翻译: 提供了一种用于从颗粒废金属材料电解提取金属的装置和方法,其中废金属材料与电解质混合以形成悬浮液。 将悬浮液分成几部分。 第一部分进入阳极室,并且第二部分被过滤并进入阴极室,其中金属电连接到旋转阴极上。

    Method of reducing chipping and contamination of reservoirs and channels
in thermal ink printheads during dicing by vacuum impregnation with
protective filler material
    8.
    发明授权
    Method of reducing chipping and contamination of reservoirs and channels in thermal ink printheads during dicing by vacuum impregnation with protective filler material 失效
    通过真空浸渍保护性填充材料在切割期间减少热墨水打印头中的储存器和通道的碎裂和污染的方法

    公开(公告)号:US5306370A

    公开(公告)日:1994-04-26

    申请号:US970499

    申请日:1992-11-02

    IPC分类号: B32B31/00

    摘要: A method of fabricating thermal ink jet printheads comprises aligning and bonding a pair of silicon wafers together, which have, on opposing confronting surface thereof, a plurality of sets of linear arrays of heating elements and associated driver circuitry on one wafer surface and a plurality of sets of parallel grooves and a communicating reservoir for each set of grooves. The grooves and reservoirs are filled with a filler material which is solid or gels at room temperature and liquid at higher temperatures. The bonded pair of wafers are severed into a plurality of individual printhead sby dicing processes conducted at room temperature. One of the dicing processes cuts the grooves in a direction perpendicular thereto in order to form concurrently the nozzle face and nozzles. The solid filler material supports fragile edges of the wafers and prevents entry of dicing debris and other contaminants. The printheads are subjected to heat, spinning, and high pressure water spray to remove the filler material.

    摘要翻译: 一种制造热喷墨打印头的方法包括将一对硅晶片对准并将其粘合在一起,所述硅晶片在相对的相对表面上具有在一个晶片表面上的多组加热元件和相关联的驱动电路的线性阵列组, 一组平行槽和一组连通槽,用于每组槽。 槽和储存器填充有在室温下为固体或凝胶的填料,在较高温度下填充液体。 通过在室温下进行的切割工艺将粘合的一对晶片切割成多个单独的打印头。 其中一个切割工艺在与其垂直的方向上切割凹槽,以便同时形成喷嘴面和喷嘴。 固体填充材料支撑晶片的脆弱边缘并防止切割碎屑和其它污染物的进入。 打印头经受热,旋转和高压喷水以去除填料。

    Waterfast ink jet compositions and process
    10.
    发明授权
    Waterfast ink jet compositions and process 失效
    防水喷墨组合物和方法

    公开(公告)号:US4789400A

    公开(公告)日:1988-12-06

    申请号:US71827

    申请日:1987-07-10

    IPC分类号: C09D11/00 C09D11/02

    CPC分类号: C09D11/30

    摘要: An improved ink jet composition comprised of a major amount of water, a hydroxypropylated polyethyleneimine with a weight average molecular weight of from about 1,000 to about 10,000, and a dye component; and wherein the ink has a viscosity of from about 1 to about 5 centipoise.

    摘要翻译: 一种由主要量的水,重均分子量为约1,000至约10,000的羟丙基化聚乙烯亚胺和染料组分组成的改进的喷墨组合物; 并且其中所述油墨的粘度为约1至约5厘泊。