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    Fluorescent latexes with enhanced brightness
    2.
    发明授权
    Fluorescent latexes with enhanced brightness 有权

    公开(公告)号：US11448981B2

    公开(公告)日：2022-09-20

    申请号：US16822310

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Chunliang Lu

    IPC: G03G9/087 ,  G03G9/093 ,  C08L67/02 ,  C09K11/02 ,  C09K11/06 ,  G03G15/08

    Abstract: Fluorescent latexes are provided. In embodiments, a fluorescent latex comprises water and fluorescent agent-incorporated resin particles, the particles comprising a resin and a Förster Resonance Energy Transfer (FRET) pair comprising a fluorescent brightener having a fluorescence emission spectrum and a fluorescent dye having an absorption spectrum that overlaps with the fluorescence emission spectrum of the fluorescent brightener, wherein the fluorescent latex exhibits FRET under illumination with ultraviolet (UV) light. Fluorescent toners made from the fluorescent latexes are provided. Methods of making and using the fluorescent toners are also provided.

    FLUORESCENT MAGENTA LATEX WITH ENHANCED BRIGHTNESS AND TONERS MADE THEREFROM
    3.
    发明申请
    FLUORESCENT MAGENTA LATEX WITH ENHANCED BRIGHTNESS AND TONERS MADE THEREFROM 有权

    公开(公告)号：US20210294232A1

    公开(公告)日：2021-09-23

    申请号：US16822357

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Chunliang Lu ,  Peter V. Nguyen ,  Yu Qi

    IPC: G03G9/09 ,  G03G9/08 ,  G03G9/093

    Abstract: Fluorescent magenta latexes are provided which may comprise water and fluorescent agent-incorporated resin particles, the particles comprising a resin, Solvent Red 49 as a red fluorescent agent, and Solvent Yellow 98 as a yellow fluorescent agent, wherein the fluorescent magenta latex has a weight ratio of the Solvent Red 49 to the Solvent Yellow 98 in a range of from 3:1 to 10:1. Fluorescent magenta toners and methods of making and using the fluorescent magenta toners are also provided.

    FLUORESCENT GREEN TONERS WITH ENHANCED BRIGHTNESS
    5.
    发明申请
    FLUORESCENT GREEN TONERS WITH ENHANCED BRIGHTNESS 有权

    公开(公告)号：US20210294233A1

    公开(公告)日：2021-09-23

    申请号：US16822531

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Chunliang Lu ,  Yu Qi ,  Peter V. Nguyen ,  Eliud Robles-Flores ,  Chieh-Min Cheng

    IPC: G03G9/09 ,  G03G9/08 ,  G03G9/093

    Abstract: Fluorescent green toners are provided. In embodiments, a fluorescent green toner comprises fluorescent agent-incorporated resin particles comprising a resin, a fluorescence brightener, and a yellow fluorescent agent having an absorption spectrum that overlaps with a fluorescence emission spectrum of the fluorescence brightener; and a cyan colorant; blue dye-incorporated resin particles comprising the resin and a blue dye; or both. The fluorescent green toner has a weight ratio of the yellow fluorescent agent to the cyan colorant and, if present, the blue dye, in a range of from 100:1 to 0.2:1, and the fluorescent green toner exhibits Førster Resonance Energy Transfer (FRET) under illumination with UV light. Methods of making and using the fluorescent green toners are also provided.

    FLUORESCENT PINK TONERS AND RELATED METHODS
    6.
    发明申请
    FLUORESCENT PINK TONERS AND RELATED METHODS 有权

    公开(公告)号：US20210294230A1

    公开(公告)日：2021-09-23

    申请号：US16822162

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Yu Qi ,  Judith Vandewinckel ,  Chunliang Lu ,  Eliud Robles-Flores ,  Fan Shi

    IPC: G03G9/09 ,  G03G9/093

    Abstract: Methods of making fluorescent pink toners are provided which comprise forming one or more fluorescent latexes which comprise a red fluorescent agent, a yellow fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent pink toner. Fluorescent pink toners and methods of using such toners are also provided.

    Fluorescent pink toners and related methods
    9.
    发明授权
    Fluorescent pink toners and related methods 有权

    公开(公告)号：US11204562B2

    公开(公告)日：2021-12-21

    申请号：US16822162

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Yu Qi ,  Judith Vandewinckel ,  Chunliang Lu ,  Eliud Robles-Flores ,  Fan Shi

    IPC: G03G9/093 ,  G03G9/09 ,  G03G9/08

    Abstract: Methods of making fluorescent pink toners are provided which comprise forming one or more fluorescent latexes which comprise a red fluorescent agent, a yellow fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent pink toner. Fluorescent pink toners and methods of using such toners are also provided.

    Fluorescent white toners and related methods
    10.
    发明授权
    Fluorescent white toners and related methods 有权

    公开(公告)号：US11199786B2

    公开(公告)日：2021-12-14

    申请号：US16822104

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Yu Qi ,  Judith Vandewinckel ,  Shigeng Li ,  Chunliang Lu ,  Chieh-Min Cheng

    IPC: G03G9/08 ,  G03G9/09 ,  G03G9/093

    Abstract: Methods of making a fluorescent white toner are provided. In embodiments, such a method comprises forming one or more fluorescent latexes which comprise a fluorescent agent, a first type of amorphous resin, and a second type of amorphous resin, wherein the first and second types of amorphous resins are present at a ratio in a range of from 2:3 to 3:2; forming a mixture comprising the one or more fluorescent latexes; a dispersion comprising a white colorant and a surfactant; one or more emulsions which comprise a crystalline resin, the first type of amorphous resin, the second type of amorphous resin; and optionally, a wax dispersion; aggregating the mixture to form particles of a predetermined size; forming a shell over the particles of the predetermined size to form core-shell particles; and coalescing the core-shell particles to form a fluorescent white toner. The fluorescent white toners and methods of using such toners are also provided.

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