PHOTONIC CRYSTAL SOLVENT VAPOR SENSING DEVICE

    公开(公告)号:CA2606653C

    公开(公告)日:2012-10-02

    申请号:CA2606653

    申请日:2007-10-12

    Applicant: XEROX CORP

    Abstract: A method of manufacturing a vapor-sensing device, including placing an aqueous dispersion of colloidal spheres on a substrate, drying the aqueous dispersion of colloidal spheres to obtain a colloidal crystal, filling the voids among the colloidal crystal with a vapor-expandable matrix composition, curing the vapor-expandable matrix composition, and peeling away any excess vapor-expandable matrix material from the surface of the film, so that the colloidal crystal is exposed.

    94.
    发明专利
    未知

    公开(公告)号:AT512204T

    公开(公告)日:2011-06-15

    申请号:AT09168987

    申请日:2009-08-31

    Applicant: XEROX CORP

    Abstract: Provided is an ink set comprised of a plurality of solid phase change inks, at least one ink but less than all inks of the ink set comprising an ink vehicle, pigment and fluorescence agent and remaining additional inks comprised of an ink vehicle, pigment and free of fluorescence agent, wherein 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 containing 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.

    REIMAGEABLE MEDIUM
    96.
    发明专利

    公开(公告)号:CA2504997C

    公开(公告)日:2010-10-19

    申请号:CA2504997

    申请日:2005-04-22

    Applicant: XEROX CORP

    Abstract: An 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, wherein the medium has a characteristic that when the medium exhibits the absence of the color contrast and is then exposed to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, the color contrast is present between the exposed region and the non-exposed region to form a temporary image corresponding to the predetermined image that is visible for a visible time, wherein the medium has a characteristic that when the temporary image is exposed to an indoor ambient condition for an image erasing time, the color contrast changes to the absence of the color contrast to erase the temporary image in all of the following: (i) when the indoor ambient condition includes darkness at ambient temperature, (ii) when the indoor ambient condition includes indoor ambient light at ambient temperature, and (iii) when the indoor ambient condition includes both the darkness at ambient temperature and the indoor ambient light at ambient temperature, and wherein the medium is capable of undergoing multiple cycles of temporary image formation and temporary image erasure.

    PIGMENTO ORGANICO QUE CONTIENE NANOPARTICULAS FLUORESCENTES.

    公开(公告)号:MX2009010653A

    公开(公告)日:2010-05-14

    申请号:MX2009010653

    申请日:2009-10-01

    Applicant: XEROX CORP

    Abstract: Un m?todo para producir pigmentos org?nicos para incluir al menos una composici?n de part?culas de pigmento fluorescentes nanoescalares y/o una composici?n de nanoparticulas org?nicas fluorescentes. Las part?culas son incorporadas en la emulsi?n de pigmento org?nico y usadas en la producci?n de pigmento org?nico v?a agregaci?n en emulsi?n. Esos pigmentos org?nicos pueden tener un n?cleo y/o un revestimiento y las composiciones de arcilla pueden ser incluidas dentro del n?cleo, el revestimiento o ambas. La composici?n de nanoparticulas org?nicas fluorescentes incluye una matriz polim?rica obtenida por el proceso de l?tex EA modificado y/o polimerizaci?n en emulsi?n y uno o m?s tintes fluorescentes y la composici?n de part?culas de pigmento fluorescentes nanoescalares incluye mol?culas de pigmento con al menos una porci?n funcional, y un compuesto estabilizador est?ricamente voluminoso que incluye al menos un grupo funcional, la porci?n funcional del pigmento se asocia de manera no covalente con el grupo funcional del estabilizador, y la presencia del estabilizador asociado limita el grado de crecimiento y agregaci?n de la part?cula, para dar part?culas de pigmento de tama?o nanoescalar.

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