公开(公告)号：US20200056059A1

公开(公告)日：2020-02-20

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 ,  C09D11/38 ,  C09D11/037 ,  C09D11/033 ,  C09D11/102 ,  B41M5/00

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：US20190249023A1

公开(公告)日：2019-08-15

申请号：US16308842

申请日：2017-09-15

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

Inventor： Larrie Deardurff ,  Jayprakash C. BHATT ,  Milton Neill JACKSON

IPC: C09D11/326 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/38 ,  B41M5/00 ,  B41J2/01

Abstract: The present disclosure is drawn to an ink composition including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.5 wt % to 5 wt % acidic polymeric binder particles having an acid number from 30 to 200 and a particle size from 1 nm to 100 nm dispersed in the aqueous liquid vehicle. The ink composition can also include from 0.1 wt % to 0.75 wt % monovalent salt solubilized in the aqueous liquid vehicle. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 50:1, for example.

公开(公告)号：US20190153251A1

公开(公告)日：2019-05-23

申请号：US16308601

申请日：2016-10-06

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

Inventor： Jayprakash C. BHATT ,  Milton Neill JACKSON ,  Larrie DEARDURFF

IPC: C09D11/322 ,  C09D11/38 ,  G01N29/02

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 3 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, and from 0.25 wt % to 1.2 wt % monovalent salt. The pigment to monovalent salt weight ratio in the ink composition can be from 5:1 to 25:1.

公开(公告)号：US20200017701A1

公开(公告)日：2020-01-16

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 ,  C09D11/38 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  B41J11/00 ,  B41M5/00

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：US20190185692A1

公开(公告)日：2019-06-20

申请号：US16308651

申请日：2016-10-04

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

Inventor： Milton Neill JACKSON ,  Larrie DEARDURFF ,  Jayprakash C. Bhatt

IPC: C09D11/322 ,  C09D11/38

CPC classification number: C09D11/322 ,  C09D11/38

Abstract: The present disclosure is drawn to ink compositions including from 30 wt % to 75 wt % water, an organic co-solvent system, from 0.1 wt % to 3 w % nonionic surfactant, and from 3 wt % to 9 wt % pigment that is dispersed by separate polymer dispersant. The organic co-solvent system can include, based on the ink composition content, from 15 wt % to 50 wt % of a first solvent portion of high dielectric constant co-solvent with a dielectric constant greater than 30 ε, and from 2 wt % to 15 wt % of a second solvent portion of low dielectric constant co-solvent with a dielectric constant from 1 ε to 30 ε.

公开(公告)号：US20190153252A1

公开(公告)日：2019-05-23

申请号：US16308902

申请日：2016-10-06

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

Inventor： Larrie DEARDUFF ,  Jayprakash C. BHATT ,  Milton Neill JACKSON

IPC: C09D11/322 ,  C09D11/38 ,  G01N29/028

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.1 wt % to 1 wt % monovalent salt. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 35:1.