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    IMAGING MEDIUM
    12.
    发明申请
    IMAGING MEDIUM 有权

    公开(公告)号：US20210323333A1

    公开(公告)日：2021-10-21

    申请号：US16605236

    申请日：2018-08-30

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Jayprakash C. Bhatt ,  Michael W. Cumbie

    IPC: B41M5/34 ,  B41M5/44 ,  B41J2/325 ,  B41J2/335

    Abstract: Imaging medium includes an image-receiving substrate including a color-forming layer, a donor ribbon attached to the image-receiving substrate and including a color layer, and a repeated pattern. The repeated pattern is defined by a portion of each of the color-forming layer and color layer. A repeat of the pattern includes at least three adjacent colored stripes including a cyan or cyan-forming stripe, a magenta or magenta-forming stripe, and a yellow or yellow-forming stripe. A first of the at least three adjacent stripes is a color-forming stripe in the color-forming layer. A second of the at least three adjacent stripes is a colored stripe in the color layer. A third of the at least three adjacent stripes is either a second color-forming stripe in the color-forming layer or a second colored stripe in the color layer of the donor ribbon.

    IMAGING MEDIA
    13.
    发明申请
    IMAGING MEDIA 有权

    公开(公告)号：US20210283936A1

    公开(公告)日：2021-09-16

    申请号：US17059711

    申请日：2018-12-06

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Christopher Toles ,  Michael W. Cumbie ,  Jayprakash C. Bhatt ,  Juan Carlos Vives

    IPC: B41M5/50 ,  B41J2/21

    Abstract: The present disclosure is drawn to imaging media. In one example, an imaging medium includes a substrate, a color layer on the substrate, and an opaque porous concealing layer over the color layer. The color layer includes a pattern of color regions, wherein individual color regions include multiple adjacently-applied colors. The opaque porous concealing layer has a coat weight from 2 gsm to 10 gsm. The opaque porous concealing layer includes transparent inorganic particles having a refractive index from 1.3 to 3, and void spaces between the transparent inorganic particles are occupied by air.

    INK COMPOSITIONS
    16.
    发明申请
    INK COMPOSITIONS 审中-公开

    公开(公告)号：US20180194958A1

    公开(公告)日：2018-07-12

    申请号：US15742209

    申请日：2015-10-14

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Jayprakash C. Bhatt ,  Palitha Wickramanayake

    IPC: C09D11/40 ,  C09D11/037 ,  C09D11/107 ,  C09D11/322

    CPC classification number: C09D11/40 ,  C09D11/037 ,  C09D11/107 ,  C09D11/322 ,  C09D11/326

    Abstract: The present disclosure is drawn to ink compositions comprising from 1 wt % to 8 wt % of a colored pigment and a polymeric dispersant. The polymeric dispersant can be associated with the pigment and the weight ratio of the polymeric dispersant to pigment can be less than 0.33. The polymeric dispersant can have hydrophilic moieties and hydrophobic moieties and an acid number from about 40 to about 180. The ink composition can have an effective charge stabilization from about 0.3 to about 1.8 that is calculated based on a product of the acid number of the polymeric dispersant, the polymer dispersant to pigment weight ratio, and the pigment load in the ink.

    IMAGING MEDIUM
    17.
    发明申请
    IMAGING MEDIUM 有权

    公开(公告)号：US20210039414A1

    公开(公告)日：2021-02-11

    申请号：US16608165

    申请日：2018-04-13

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Jayprakash C. Bhatt ,  Michael W. Cumbie

    IPC: B41M5/34 ,  B41M5/382

    Abstract: An example of an imaging medium includes an image-receiving substrate, a donor ribbon attached to the image-receiving substrate, and a registration mark. The donor ribbon includes a donor ribbon substrate, a release layer disposed on the donor ribbon substrate, and a color-forming layer disposed on the release layer. The color-forming layer includes a repeated pattern. A repeat of the pattern includes at least three adjacent color-forming stripes including a cyan-forming stripe, a magenta-forming stripe, and a yellow-forming stripe, or a grid of four color-forming sections including i) a color-forming section selected from the group consisting of black-forming, cyan-forming, light cyan-forming, yellow-forming, magenta-forming, and light magenta-forming, ii) a cyan-forming section, iii) a magenta-forming section, and iv) a yellow-forming section. The color-forming layer is in contact with the image-receiving substrate.

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