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    LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    3.
    发明申请
    LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION 有权

    公开(公告)号：US20230059288A1

    公开(公告)日：2023-02-23

    申请号：US17392950

    申请日：2021-08-03

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Gil Bar-Haim ,  Daniel Skvirsky ,  Albert Teishev

    IPC分类号： C09D11/037 ,  C09D11/10

    摘要： A liquid electrophotographic (LEP) ink composition is described. The composition comprises: a pigment particle having an acidic surface modification; a basic charge director selected from:(i) a polymeric amine dispersant having a Total Base Number of at least 100 mg KOH/gram material, and (ii) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I): [R1—O—C(O)CH2CH(SO3)C(O)—O—R2]− (I); and a liquid carrier. The ink composition does not include a thermoplastic resin. Also described are a method of producing the ink composition, and a method of printing using the ink composition.

    CHARGE DIRECTOR FOR LIQUID TONER
    6.
    发明申请
    CHARGE DIRECTOR FOR LIQUID TONER 有权
    液化石油公司负责人

    公开(公告)号：US20160170320A1

    公开(公告)日：2016-06-16

    申请号：US15050892

    申请日：2016-02-23

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Yaacov Almog ,  Avi Koller ,  Elliad Silcoff ,  Albert Teishev ,  Yaffa Israeli ,  Gary Larson ,  Lufei Lin

    IPC分类号： G03G9/097

    CPC分类号： G03G9/09783 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/40 ,  C09C1/02 ,  C09C1/025 ,  C09C1/027 ,  C09C3/08 ,  G03G9/135 ,  G03G9/1355

    摘要： A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3−)C(O)—O—R2],  (I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group,

    摘要翻译： 一种用于对液体调色剂充电的电荷导向材料，所述电荷导向材料包含（a）简单盐的纳米颗粒和（b）通式MAn的磺基琥珀酸盐，其中M是金属，n是M的化合价， A是通式（I）的离子[R1-O-C（O）CH2CH（SO3-）C（O）-O-R2]，（Ⅰ）其中R1和R2各自为烷基; 所述电荷导向剂材料基本上不含通式（I）的酸，其中R 1和R 2中的一个或两个是氢，如果只有一个是氢，另一个是烷基，

    Automatic cleaning in a liquid ink printing system
    7.
    发明授权
    Automatic cleaning in a liquid ink printing system 有权
    在液体油墨印刷系统中进行自动清洗

    公开(公告)号：US08727513B2

    公开(公告)日：2014-05-20

    申请号：US13664541

    申请日：2012-10-31

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Eyal Bachar ,  Albert Teishev ,  Kobi Shkuri

    IPC分类号： B41J2/175

    CPC分类号： B41J2/175 ,  B41J2/17596

    摘要： A system for automatic cleaning in a liquid ink printing system includes an ink tank, a pump which is configured pump a carrier liquid from the ink tank as a pressurized carrier liquid flow. A filter is configured to remove particulates from the pressurized carrier liquid flow to produce a filtered carrier liquid flow. A sprayer is configured to receive the filtered carrier liquid flow and spray the filtered carrier liquid flow into an interior of the ink tank. The pump recirculates the filtered carrier liquid flow through the filter and the sprayer. A method for automatic cleaning in a printing system is also included.

    摘要翻译： 一种用于在液体油墨印刷系统中自动清洁的系统包括一个墨水罐，一个泵，该泵被构造成将来自墨水罐的载体液体作为加压的载体液体流动。 过滤器构造成从加压的载体液体流中除去微粒以产生过滤的载体液体流。 喷雾器被构造成接收经过滤的载液流并将过滤的载液流喷射到墨罐的内部。 泵将过滤的载液液流再循环通过过滤器和喷雾器。 还包括在打印系统中自动清洁的方法。

    PRINT TREATMENT UNITS
    9.
    发明申请
    PRINT TREATMENT UNITS 有权

    公开(公告)号：US20220004122A1

    公开(公告)日：2022-01-06

    申请号：US17256668

    申请日：2019-03-22

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Fernanda Orlik ,  Albert Teishev ,  Alex Veis

    IPC分类号： G03G15/10 ,  C09D11/107 ,  C09D11/52 ,  G03G15/20

    摘要： A method is disclosed. The method may comprise forming an image on a surface by controlled electrostatic transfer of a fluid print agent comprising thermoplastic resin disposed in a carrier fluid The method may also comprise heating the fluid print agent on the surface to remove the carrier fluid and to melt the thermoplastic resin and allowing the melted thermoplastic resin in continuous areas on the surface to fuse together to form an image from fused print agent. The method may further involve providing a printed substrate bearing the image formed from fused print agent. The method may further comprise irradiating the printed substrate with an ultraviolet narrowband source so as to cause heating of the fused print agent to melt the thermoplastic resin. A print system and a print apparatus are also disclosed.

    CYAN LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION
    10.
    发明申请
    CYAN LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION 有权

    公开(公告)号：US20210349407A1

    公开(公告)日：2021-11-11

    申请号：US17278145

    申请日：2018-12-06

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Adi Mann ,  Albert Teishev ,  Gilad Noy

    IPC分类号： G03G9/12 ,  G03G9/13 ,  G03G9/135 ,  G03G9/093 ,  G03G9/09 ,  G03G9/08

    摘要： A method for producing a cyan liquid electrophotographic ink composition includes: dispersing in a first portion of carrier fluid cyan pigment particles and inorganic spacer particles, the inorganic spacer particles having a particle size (d50) of 0.1 μm or less, such that the inorganic spacer particles adhere to the cyan pigment particles; heating a polymer resin in a second portion of carrier fluid to dissolve the polymer resin; adding the dispersion of the cyan pigment particles having the inorganic spacer particles adhered thereto in the first portion of carrier fluid to the dissolved polymer resin in the second portion of carrier fluid; cooling the carrier fluid at a controlled rate to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the cyan pigment particles having the inorganic spacer particles adhered thereto, thereby producing the cyan liquid electrophotographic ink composition.