COMPOSITE COLORED PARTICLES
    1.
    发明公开

    公开(公告)号:US20240309230A1

    公开(公告)日:2024-09-19

    申请号:US18278733

    申请日:2022-03-01

    发明人: Kosuke OGURA

    摘要: There is provided an ink composition that is excellent in anti-feathering and scratch resistance of markings and is suitable for industrial production. The present invention relates to: composite colored particles each including a resin particle carrying a positive electric charge on a particle surface and a pigment particle carrying a negative electric charge on a particle surface, the resin particle and the pigment particle forming a composite through electrostatic interaction; a water-based ink composition containing the composite colored particles dispersed in a water-based medium; and a writing instrument containing the water-based ink composition. Furthermore, the present invention relates to a method for producing composite colored particles, the method including forming a composite by mixing a resin emulsion containing resin particles each carrying a positive electric charge on a particle surface and a pigment dispersion containing pigment particles each carrying a negative electric charge on a particle surface.

    Coloring particles
    5.
    发明授权
    Coloring particles 有权
    着色颗粒

    公开(公告)号:US08262791B2

    公开(公告)日:2012-09-11

    申请号:US13075084

    申请日:2011-03-29

    IPC分类号: C09D11/00 C09B63/00

    摘要: The present invention provides coloring particles containing a dye and a water-insoluble low-molecular-weight dispersant, wherein the average particle size of the coloring particles is 10 nm or more and 80 nm or less; the solubility parameter of the dye in water with a pH of 6.0 to 10.0 is 9.20 or more, the solubility parameter being represented by formula (1); and the content of the dye and the content of the water-insoluble low-molecular-weight dispersant satisfy a relationship of formula (2).

    摘要翻译: 本发明提供了含有染料和水不溶性低分子量分散剂的着色颗粒,其中着色颗粒的平均粒径为10nm以上且80nm以下, 该染料在pH为6.0〜10.0的水中的溶解度参数为9.20以上,溶解度参数由式(1)表示; 并且染料的含量和水不溶性低分子量分散剂的含量满足式(2)的关系。

    Organic pigment fine particles and method of producing the same
    6.
    发明授权
    Organic pigment fine particles and method of producing the same 有权
    有机颜料微粒及其制造方法

    公开(公告)号:US08021475B2

    公开(公告)日:2011-09-20

    申请号:US12839696

    申请日:2010-07-20

    摘要: According to the method of producing organic pigment fine particles of the present invention, when producing organic pigment fine particles by allowing two or more solutions at least one of which is an organic pigment solution in which an organic pigment is dissolved to flow through a microchannel, the organic pigment solution flows through the microchannel in a non-laminar state. Accordingly, the contact area of solutions per unit time can be increased and the length of diffusion mixing can be shortened, and thus instantaneous mixing of solutions becomes possible. As a result, nanometer-scale monodisperse organic pigment fine particles can be produced in a stable manner.

    摘要翻译: 根据本发明的有机颜料微粒的制造方法,通过使两种以上的有机颜料溶解有机颜料溶液中的至少一种溶液流过微通道而制造有机颜料微粒, 有机颜料溶液以非层流状态流过微通道。 因此,可以提高每单位时间的溶液的接触面积,能够缩短扩散混合的长度,能够使溶液瞬间混合。 结果,可以稳定地制备纳米级单分散有机颜料微粒。

    COLOR PARTICLES
    7.
    发明申请
    COLOR PARTICLES 审中-公开
    彩色颗粒

    公开(公告)号:US20110054094A1

    公开(公告)日:2011-03-03

    申请号:US12869425

    申请日:2010-08-26

    IPC分类号: C09D11/10

    摘要: In color particles containing a dye and a polymer compound, the average particle diameter of the color particles measured by a dynamic light scattering method is 10 to 80 nm, the content of the dye of the color particles is in the range of 60 to 90 percent by mass, and the dye has a solubility index of 7.50 or more in water having a pH of 6.0 to 11.0, the solubility index being represented by the following equation (1): Solubility Index=log(1/Aqueous Solubility of Dye [mol/L]).

    摘要翻译: 在含有染料和高分子化合物的彩色粒子中,通过动态光散射法测定的着色粒子的平均粒径为10〜80nm,着色粒子的染料含量为60〜90% ,染料在pH为6.0〜11.0的水中的溶解度指数为7.50以上,溶解度指数由下式(1)表示:溶解度指数= log(1 /染料的水溶性[mol / L])。

    Organic pigment fine particles and method of producing the same
    9.
    发明授权
    Organic pigment fine particles and method of producing the same 有权
    有机颜料微粒及其制造方法

    公开(公告)号:US07780780B2

    公开(公告)日:2010-08-24

    申请号:US11917069

    申请日:2006-06-09

    摘要: According to the method of producing organic pigment fine particles of the present invention, when producing organic pigment fine particles by allowing two or more solutions at least one of which is an organic pigment solution in which an organic pigment is dissolved to flow through a microchannel, the organic pigment solution flows through the microchannel in a non-laminar state. Accordingly, the contact area of solutions per unit time can be increased and the length of diffusion mixing can be shortened, and thus instantaneous mixing of solutions becomes possible. As a result, nanometer-scale monodisperse organic pigment fine particles can be produced in a stable manner.

    摘要翻译: 根据本发明的有机颜料微粒的制造方法,通过使两种以上的有机颜料溶解有机颜料溶液中的至少一种溶液流过微通道而制造有机颜料微粒, 有机颜料溶液以非层流状态流过微通道。 因此,可以提高每单位时间的溶液的接触面积,能够缩短扩散混合的长度,能够使溶液瞬间混合。 结果,可以稳定地制备纳米级单分散有机颜料微粒。