公开(公告)号：US20210277264A1

公开(公告)日：2021-09-09

申请号：US16605250

申请日：2018-06-11

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

Inventor： Jayprakash C. Bhatt ,  Kellie Seetho Dalby ,  Tayo Olu Yolemi

IPC: C09D11/107 ,  C09D11/40 ,  C09D11/326 ,  C09D11/322 ,  C09D11/102 ,  B41M5/00

Abstract: An ink composition can include water, from 1 wt % to 6 wt % organic pigment, from 0.1 wt % to 3 wt % styrene acrylic resin dispersant having an acid number ranging from 100 mg KOH/g to 160 mg KOH/g, and from 1 wt % to less than 5 wt % organic co-solvent.

公开(公告)号：US20210269661A1

公开(公告)日：2021-09-02

申请号：US16605234

申请日：2018-06-11

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

Inventor： Jayprakash C. Bhatt ,  Kellie Seetho Dalby ,  Tayo Olu Yolemi

IPC: C09D11/322 ,  C09D11/40 ,  C09D11/324 ,  C09D11/102 ,  B41M5/00

Abstract: An ink composition can include water, from 1 wt % to less than 5 wt % organic solvent, from 0.3 wt % to 2 wt % of a graft polyurethane copolymer, and from 1 wt % to 6 wt % pigment.

公开(公告)号：US10975256B2

公开(公告)日：2021-04-13

申请号：US16499373

申请日：2017-09-14

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

Inventor： Milton Neill Jackson ,  Jayprakash C. Bhatt ,  Larrie A. Deardurff

IPC: C09D11/322 ,  B41M5/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/38 ,  B41J2/21

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt % to 5 wt % non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt % to 1.5 wt % monovalent salt.

公开(公告)号：US10920095B2

公开(公告)日：2021-02-16

申请号：US16497027

申请日：2017-07-12

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

Inventor： Milton Neill Jackson ,  Jayprakash C. Bhatt ,  Larrie Deardurff

IPC: C09D11/322 ,  B41J11/00 ,  B41M5/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/38

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, from 0.5 wt % to 5 wt % polymeric binder particles having an average particle size from 25 nm to 500 nm and a D10 particle size of 20 nm or more, and from 0.1 wt % to 1.5 wt % monovalent salt.

公开(公告)号：US20200047523A1

公开(公告)日：2020-02-13

申请号：US16606975

申请日：2017-07-13

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

Inventor： Jayprakash C. Bhatt ,  Matthew Thornberry

IPC: B41J11/00

Abstract: In an example of recording medium identification method, a digital image of a line or a dot printed on a recording medium with a printer is captured by an image sensor. From the digital image, a microprocessor (operatively connected to the image sensor), digitally measures a width of the line, a diameter of the dot, an area of the dot, or a perimeter of the dot. The microprocessor identifies a type of the recording medium based on the width, the diameter, the area, or the perimeter. In response to the identification of the type of the recording medium, a print setting for the type of the recording medium is selected.

公开(公告)号：US20170183523A1

公开(公告)日：2017-06-29

申请号：US15308788

申请日：2014-06-04

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

Inventor： Larrie Deardurff ,  Jayprakash C. Bhatt ,  Cory J. Ruud ,  Sterling Chaffins ,  Matthew Thornberry

IPC: C09D11/322 ,  C09B67/22 ,  C09D11/102 ,  C09D11/38

CPC classification number: C09D11/322 ,  C09B67/0033 ,  C09B67/0041 ,  C09D11/102 ,  C09D11/38

Abstract: The present disclosure is drawn to a magenta pigment blend, a magenta ink, and a method of formulation a magenta pigment blend. The magenta pigment blend can be a first pigment including a solid solution of Pigment Violet 19 and Pigment Red 122, or Pigment Red 282; and a second pig-ment including Pigment Red 150. The weight ratio of the first pigment to the second pigment can be from 50:50 to 80:20 by pigment solids content.