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    Amphoteric dispersants and their use in inkjet inks
    1.
    发明授权
    Amphoteric dispersants and their use in inkjet inks 有权
    两性分散剂及其在喷墨油墨中的应用

    公开(公告)号：US08820907B2

    公开(公告)日：2014-09-02

    申请号：US13133838

    申请日：2008-12-12

    申请人： C. Chad Roberts ,  Robert Paul Held ,  Patrick F. McIntyre ,  Michael Stephen Wolfe

    发明人： C. Chad Roberts ,  Robert Paul Held ,  Patrick F. McIntyre ,  Michael Stephen Wolfe

    IPC分类号： B41J2/01 ,  C09D11/00 ,  B41J2/21

    CPC分类号： C09D11/54 ,  B41J2/01 ,  B41J2/2107 ,  C09D11/324

    摘要： The present disclosure provides a ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a colorant, more typically a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and the B block is free of an amine monomer. The disclosure further pertains to an ink set comprising this ink jet ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH modifying agent capable of destabilizing the colorant containing dispersion of the first ink. Still further, the disclosure pertains to a method of printing wherein the first ink and second ink of the ink set are printed in an adjacent relationship, thereby minimizing penetration, feathering and/or bleed of the colorant and improving print quality.

    摘要翻译： 本公开提供了一种具有大于7的pH的喷墨油墨，其包含第一水性载体，着色剂，更典型地为炭黑颜料和两性聚合物分散剂，其中所述两性聚合物分散剂是包含 嵌段和B嵌段，其中A嵌段是基本上由胺单体组成的链段; 并且B嵌段是包含酸性单体和至少一种疏水性单体的链段; 其中所述分散剂被中和，并且所述B嵌段不含胺单体。 本发明还涉及一种包含该喷墨油墨和至少一种第二油墨的油墨组合物，该油墨组合物含有能够使得第一油墨的含着色剂分散体不稳定的合适的阳离子剂，盐或pH调节剂。 此外，本发明涉及一种印刷方法，其中墨水组的第一墨水和第二墨水以相邻的关系印刷，从而使着色剂的渗透，羽化和/或渗色最小化并提高印刷质量。

    AMPHOTERIC DISPERSANTS AND THEIR USE IN INKJET INKS
    2.
    发明申请
    AMPHOTERIC DISPERSANTS AND THEIR USE IN INKJET INKS 有权
    AMPHOTERIC分散剂及其在INKJET墨水中的使用

    公开(公告)号：US20110242154A1

    公开(公告)日：2011-10-06

    申请号：US13133838

    申请日：2008-12-12

    申请人： C. Chad Roberts ,  Robert Paul Held ,  Patrick F. Mcintyre ,  Michael Stephen Wolfe

    发明人： C. Chad Roberts ,  Robert Paul Held ,  Patrick F. Mcintyre ,  Michael Stephen Wolfe

    IPC分类号： B41J29/38 ,  C09D11/02

    CPC分类号： C09D11/54 ,  B41J2/01 ,  B41J2/2107 ,  C09D11/324

    摘要： The present disclosure provides a ink-jet ink, having a pH greater than 7, comprising a first aqueous vehicle, a colorant, more typically a carbon black pigment, and an amphoteric polymeric dispersant, wherein the amphoteric polymeric dispersant is a block copolymer comprising an A block and a B block, wherein the A block is a segment consisting essentially of an amine monomer; and the B block is a segment comprising an acidic monomer and at least one hydrophobic monomer; wherein the dispersant is neutralized, and the B block is free of an amine monomer. The disclosure further pertains to an ink set comprising this ink jet ink and at least a second ink which contains a reactive species with appropriate cationic agent, salt, or pH modifying agent capable of destabilizing the colorant containing dispersion of the first ink. Still further, the disclosure pertains to a method of printing wherein the first ink and second ink of the ink set are printed in an adjacent relationship, thereby minimizing penetration, feathering and/or bleed of the colorant and improving print quality.

    摘要翻译： 本公开提供了一种具有大于7的pH的喷墨油墨，其包含第一水性载体，着色剂，更典型地为炭黑颜料和两性聚合物分散剂，其中所述两性聚合物分散剂是包含 嵌段和B嵌段，其中A嵌段是基本上由胺单体组成的链段; 并且B嵌段是包含酸性单体和至少一种疏水性单体的链段; 其中所述分散剂被中和，并且所述B嵌段不含胺单体。 本发明还涉及一种包含该喷墨油墨和至少一种第二油墨的油墨组合物，该油墨组合物含有能够使得第一油墨的含着色剂分散体不稳定的合适的阳离子剂，盐或pH调节剂。 此外，本发明涉及一种印刷方法，其中墨水组的第一墨水和第二墨水以相邻的关系印刷，从而使着色剂的渗透，羽化和/或渗色最小化并提高印刷质量。

    AMPHOTERIC POYURETHANE DISPERSANTS AND THEIR USE IN INKJET INKS
    4.
    发明申请
    AMPHOTERIC POYURETHANE DISPERSANTS AND THEIR USE IN INKJET INKS 有权
    AMPHOTERIC POYURETHANE DISPERSANTS及其在INKJET INKS中的使用

    公开(公告)号：US20110245410A1

    公开(公告)日：2011-10-06

    申请号：US13133853

    申请日：2009-12-11

    申请人： C. Chad Roberts ,  Patrick F. Mcintyre ,  Michael Stephen Wolfe

    发明人： C. Chad Roberts ,  Patrick F. Mcintyre ,  Michael Stephen Wolfe

    IPC分类号： C09D11/02 ,  C08L75/04 ,  C08L33/08

    CPC分类号： C09D11/40 ,  C09D11/324 ,  C09D11/326

    摘要： The disclosure provides an aqueous dispersion and ink jet inks comprising a colorant and an amphoteric polyurethane dispersant, wherein the amphoteric polyurethane dispersant comprises a reaction product of at least one basic amine urethane monomer, at least one acidic urethane monomer, and at least one urethane monomer comprising two or more isocyanates having improved bleed control, and optical density/chroma.

    摘要翻译： 本公开提供了包含着色剂和两性聚氨酯分散剂的水分散体和喷墨油墨，其中所述两性聚氨酯分散剂包含至少一种碱性氨基甲酸酯单体，至少一种酸性氨基甲酸酯单体和至少一种氨基甲酸酯单体的反应产物 包含两种或更多种具有改进的渗色控制的异氰酸酯和光密度/色度。