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    Printed sun exposure sensor with fluorescent toner for disposable/single use
    31.
    发明授权
    Printed sun exposure sensor with fluorescent toner for disposable/single use 有权

    公开(公告)号：US11852526B2

    公开(公告)日：2023-12-26

    申请号：US17114669

    申请日：2020-12-08

    Applicant: Xerox Corporation

    Inventor： Yu Qi ,  Eliud Robles Flores ,  Judith Millner Vandewinckel ,  Andrew Beams

    IPC: G01J1/42 ,  G01J1/58 ,  G01N21/64 ,  A61B5/00

    CPC classification number: G01J1/429 ,  A61B5/441 ,  G01J1/58 ,  G01N21/6428

    Abstract: A sun exposure sensor for disposable or single use including a substrate having an upper surface and a lower surface; a sun exposure sensing portion disposed on the upper surface of the substrate, the sun exposure sensing portion comprising a fluorescent toner image, wherein the fluorescent toner image increasingly fades upon exposure to sunlight; a sun exposure scale disposed on the upper surface of the substrate, the sun exposure scale comprising an evaluation image for evaluating an amount of fading of the fluorescent toner image; an optional coating layer disposed over all or a portion of the upper surface of the substrate; an optional backing layer disposed over all or a portion of the lower surface of the substrate. A process for preparing the sensor using xerographic toner printing.

    Fluorescent green toners with enhanced brightness
    32.
    发明授权
    Fluorescent green toners with enhanced brightness 有权

    公开(公告)号：US11209741B2

    公开(公告)日：2021-12-28

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

    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 Förster Resonance Energy Transfer (FRET) under illumination with UV light. Methods of making and using the fluorescent green toners are also provided.

    Fluorescent metallic toners and related methods
    33.
    发明授权
    Fluorescent metallic toners and related methods 有权

    公开(公告)号：US11199787B2

    公开(公告)日：2021-12-14

    申请号：US16822263

    申请日：2020-03-18

    Applicant: Xerox Corporation

    Inventor： Yu Qi ,  Jaclyn Janis ,  Judith Vandewinckel ,  Chunliang Lu

    IPC: G03G9/093 ,  G03G9/08

    Abstract: Methods of making fluorescent metallic toners are provided which comprise 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 aluminum flakes 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 metallic toner. Fluorescent metallic toners and methods of using such toners are also provided.

    FLUORESCENT WHITE TONERS AND RELATED METHODS
    34.
    发明申请
    FLUORESCENT WHITE TONERS AND RELATED METHODS 有权

    公开(公告)号：US20210294231A1

    公开(公告)日：2021-09-23

    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: G03G9/09 ,  G03G9/08 ,  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.

    Metallic toner particles
    35.
    发明授权
    Metallic toner particles 有权

    公开(公告)号：US10935901B1

    公开(公告)日：2021-03-02

    申请号：US16693649

    申请日：2019-11-25

    Applicant: XEROX CORPORATION

    Inventor： Yu Qi ,  Shigeng Li ,  Richard P. N. Veregin

    IPC: G03G9/08 ,  G03G9/09 ,  G03G9/087 ,  G03G9/097 ,  G03G15/08

    Abstract: Described herein is a metallic toner. The metallic toner includes flake shape toner particles having a binder resin, zinc stearate, silica having a particle size of from 7 nm to less than 12 nm in an amount of about 0.1 weight percent to 1.0 about weight percent of the flake shape toner particle and tabular shape metallic pigments. The flake shape toner particles have an average major axis length of from 6 μm to 20 μm, an average thickness of from 1 μm to 4 μm and an average circularity of from 0.5 to 0.97. The tabular shape metallic pigments have an average major axis length of from 1 μm to 14 μm an average thickness of from 0.01 μm to 0.5 μm.

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