TONERS WITH FLUORESCENCE AGENT AND TONER SETS INCLUDING THE TONERS

    公开(公告)号:CA2678386C

    公开(公告)日:2012-07-17

    申请号:CA2678386

    申请日:2009-09-11

    Applicant: XEROX CORP

    Abstract: A toner set includes a plurality of toners, at least one toner but less than all toners of the toner set including binder, colorant and fluorescence agent and remaining additional toners including binder, colorant and free of fluorescence agent. At least a first toner grouping and a second toner grouping of the toner set form a combination, the first and second groupings of the combination exhibiting a substantially same color under ambient light conditions upon image formation. The first toner grouping and the second toner grouping of the combination contain a different amount of the fluorescence agent, wherein upon exposure to activating energy, the fluorescence agent fluoresces to cause a visible change in the color of a pattern formed in an image by the first toner grouping as compared to the second toner grouping.

    TONER CONTAINING FLUORESCENT NONOPARTICLES

    公开(公告)号:CA2680954A1

    公开(公告)日:2010-04-06

    申请号:CA2680954

    申请日:2009-09-29

    Applicant: XEROX CORP

    Abstract: A method for making toners to include at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The particles are incorporated into emulsion of toner and used in making toner via emulsion aggregation. Such toners may have a core and/or a shell and the clay composites may be included within the core, the shell or both. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.

    SOLID PHASE CHANGE FLUORESCENT INK AND INK SETS

    公开(公告)号:CA2678341A1

    公开(公告)日:2010-03-19

    申请号:CA2678341

    申请日:2009-09-11

    Applicant: XEROX CORP

    Abstract: An ink set includes a plurality of inks, at least one ink but less than all inks of the ink set including an ink vehicle, colorant and fluorescence agent and remaining additional inks including an ink vehicle, colorant and free of fluorescence agent. At least a first ink grouping and a second ink grouping of the ink set form a combination, the first and second groupings of the combination exhibiting a substantially same color under ambient light conditions upon image formation. The first ink grouping and the second ink grouping of the combination contain a different amount of the fluorescence agent, wherein upon exposure to activating energy, the fluorescence agent fluoresces to cause a visible change in the color of a pattern formed in an image by the first ink grouping as compared to the second ink grouping.

    INKLESS REIMAGEABLE PRINTING PAPER AND METHOD

    公开(公告)号:CA2634399A1

    公开(公告)日:2008-12-13

    申请号:CA2634399

    申请日:2008-06-06

    Applicant: XEROX CORP

    Abstract: An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imagi ng composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone a nd exhibits a reversible transition between a colorless and a colored state.

    ELECTROPHORETIC DISPLAY DEVICE
    86.
    发明专利

    公开(公告)号:CA2588499A1

    公开(公告)日:2007-11-19

    申请号:CA2588499

    申请日:2007-05-14

    Applicant: XEROX CORP

    Abstract: An electrophoretic display device includes a multiplicity of individual reservoirs containing a display medium between conductive substrates, at lea st one of which is transparent, wherein the display medium includes one or more set of colored particles in a dielectric fluid and has an electrical conductivity of about 10 -11 to about -15 S/m, and wherein the multiplicity of individual reservoirs are defined b y a unitary grid whose walls segregate the reservoirs. The gird may be formed vi a photolithography or from a master stamp derived from a mold of the grid pattern.

    LOW VOLTAGE E-PAPER
    88.
    发明专利

    公开(公告)号:CA2527997A1

    公开(公告)日:2006-06-03

    申请号:CA2527997

    申请日:2005-11-25

    Applicant: XEROX CORP

    Abstract: A cholesteric display including a liquid crystalline mixture having a dipol ar dopant dissolved in the liquid crystalline mixture and the resulting mixture is reflecting light in the visible range of the spectrum when in planar state. In accordance with another aspect, a process includes forming a composition wit h a dipolar molecule to result in a liquid crystal dipolar dopant, and liquid crystal is added to the composition. In accordance with still another aspect, a device includes a liquid crystal composition includes a cholesteric liquid and a dipolar dopant. The liquid crystal composition is switchable between a focal-conic state and a planar state in the presence of an electric field and is stable in the respective state when the electric field is removed.

    METHOD FOR FORMING TEMPORARY IMAGE
    89.
    发明专利

    公开(公告)号:CA2504995A1

    公开(公告)日:2005-10-29

    申请号:CA2504995

    申请日:2005-04-22

    Applicant: XEROX CORP

    Abstract: An image forming method composed of: (a) providing a reimageable medium composed of a substrate and a photochromic material, wherein the medium is capable of exhibiting a color contrast and an absence of the color contrast; (b) exposing the medium to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, wherein the color contrast is present between the exposed region and the non-exposed region to allow a temporary image corresponding to the predetermined image to be visible for a visible time; (c) subjecting the temporary image to an indoor ambient condition for an image erasing time to change the color contrast to the absence of the color contrast to erase the temporary image without using an image erasure device; and (d) optionally repeating procedures (b) and (c) a number of times to result in the medium undergoing a number of additional cycles of temporary image formation and temporary image erasure.

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