公开(公告)号：US10829656B2

公开(公告)日：2020-11-10

申请号：US16093101

申请日：2016-07-20

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

Inventor： Alireza Rahimi ,  George Sarkisian

IPC: C09D11/38 ,  B41M5/00 ,  C09D11/102 ,  C09D11/322 ,  C09D11/40 ,  B41J2/21 ,  C09D11/54

Abstract: An inkjet ink for an offset coated medium includes: water; a colorant; a binder that is a polyurethane-based dispersion; a co-solvent; and two or more surfactants. A first surfactant has a first hydrophilic lipophilic balance (HLB) value either within a water dispersible range or within a hydrophobic range and a second surfactant has a second HLB value within a hydrophobic range. The combination of the first surfactant and the second surfactant is to adjust a surface tension of the inkjet ink to a value lower than a surface tension of the offset coated medium on which the inkjet ink is to be printed.

公开(公告)号：US10759192B2

公开(公告)日：2020-09-01

申请号：US16092718

申请日：2016-07-20

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

Inventor： Alireza Rahimi ,  George Sarkisian

IPC: B41J11/00 ,  C09D11/033 ,  D21H17/66 ,  D21H19/10 ,  B41L23/00 ,  D21H21/24 ,  D21H21/10 ,  B41M5/00 ,  B41J2/21 ,  C09D11/38 ,  C09D11/54 ,  D21H19/14 ,  D21H19/82 ,  B41M5/52

Abstract: A pre-treatment fixing fluid for an offset coated medium is disclosed. The pre-treatment fixing fluid includes calcium-containing cationic crashing agents consisting of calcium propionate and calcium nitrate, wherein the calcium propionate is present in an amount ranging from about 0 wt % to about 10 wt %, and wherein the calcium nitrate is present in an amount ranging from about 15 wt % to 0 wt %, both based on the total wt % of the pre-treatment fixing fluid. The pre-treatment fixing further includes a co-solvent, a surfactant, and a balance of water. The surfactant is selected from the group consisting of a first surfactant having a first hydrophilic lipophilic balance (HLB) value within a hydrophobic range and a combination of the first surfactant and a second surfactant having a second HLB value within a water dispersible range.

公开(公告)号：US20190161635A1

公开(公告)日：2019-05-30

申请号：US16092718

申请日：2016-07-20

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

Inventor： Alireza Rahimi ,  George Sarkisian

IPC: C09D11/54 ,  C09D11/38 ,  C09D11/033 ,  D21H17/66 ,  D21H19/14 ,  D21H19/82 ,  B41J11/00

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41L23/00 ,  B41M5/0017 ,  B41M5/5227 ,  C09D11/033 ,  C09D11/38 ,  D21H17/66 ,  D21H19/10 ,  D21H19/14 ,  D21H19/828 ,  D21H21/10 ,  D21H21/24

Abstract: A pre-treatment fixing fluid for an offset coated medium is disclosed. The pre-treatment fixing fluid includes calcium-containing cationic crashing agents consisting of calcium propionate and calcium nitrate, wherein the calcium propionate is present in an amount ranging from about 0 wt % to about 10 wt %, and wherein the calcium nitrate is present in an amount ranging from about 15 wt % to 0 wt %, both based on the total wt % of the pre-treatment fixing fluid. The pre-treatment fixing further includes a co-solvent, a surfactant, and a balance of water. The surfactant is selected from the group consisting of a first surfactant having a first hydrophilic lipophilic balance (HLB) value within a hydrophobic range and a combination of the first surfactant and a second surfactant having a second HLB value within a water dispersible range.

公开(公告)号：US10829658B2

公开(公告)日：2020-11-10

申请号：US16081869

申请日：2017-06-30

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

Inventor： Alireza Rahimi ,  George Sarkisian ,  Yi-Hua Tsao ,  Benjamin Abelovski ,  Gregg A. Lane ,  Tienteh Chen ,  Or Brandstein ,  Jun Yang ,  Olakemi Akinlabi

IPC: C09D11/40 ,  B41M5/00 ,  C09D11/322 ,  B41J2/21 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/12 ,  C09D11/38

Abstract: The present disclosure refers to an inkjet ink set including a black ink with a black pigment, a yellow ink with a yellow pigment, a cyan ink with a cyan pigment and a magenta ink with a magenta pigment, wherein at least one of the ink further contains a polyurethane binder; non-ionic surfactants; humectant solvent; non-volatile glycol ether co-solvent; a polyethylene wax emulsion and a balance of water. The inkjet ink set can also includes an orange ink, a green ink and/or a violet ink. The present disclosure refers also to a system for printing the ink set described herein.

公开(公告)号：US11034851B2

公开(公告)日：2021-06-15

申请号：US16462792

申请日：2017-04-11

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

Inventor： Alireza Rahimi ,  George Sarkisian ,  Jason R. Arbeiter

IPC: C09D11/54 ,  B41M5/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/322 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

Abstract: The present disclosure is drawn to an ink set, which can include an ink composition and a fixer composition. The ink composition can include from 2 wt % to 8 wt % pigment, from 0.1 wt % to 0.5 wt % dye, from 2 wt % to 10 wt % polyurethane, and an aqueous ink vehicle. The fixer composition can include from 3 wt % to 15 wt % divalent metal salt, and an aqueous fixer vehicle.

公开(公告)号：US10647140B2

公开(公告)日：2020-05-12

申请号：US16080275

申请日：2017-06-30

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

Inventor： Alireza Rahimi ,  George Sarkisian ,  Benjamin Abelovski ,  Gregg A. Lane ,  Tienteh Chen ,  Or Brandstein ,  Jun Yang ,  Olakemi Akinlabi

IPC: B41M5/00 ,  B41J11/00 ,  C09D11/023 ,  B41J2/21 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/12 ,  C09D11/322 ,  C09D11/38 ,  C09D11/40 ,  C09D11/54

Abstract: An inkjet ink set containing a pre-treatment fixing fluid including calcium-containing crashing agents; at least a co-solvent; one or more surfactants and a balance of water; and, at least, a liquid ink. The liquid ink includes a pigment dispersion, a surfactant, a polyurethane binder, a co-solvent and a balance of water. Also disclosed are and inkjet printing system containing such ink set and the method for printing in such inkjet printing system.

公开(公告)号：US20190315987A1

公开(公告)日：2019-10-17

申请号：US16081869

申请日：2017-06-30

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

Inventor： Alireza Rahimi ,  George Sarkisian ,  Yi-Hua Tsao ,  Benjamin Abelovski ,  Gregg A. Lane ,  Tienteh Chen ,  Or Brandstein ,  Jun Yang ,  Olakemi Akinlabi

IPC: C09D11/40 ,  C09D11/322 ,  C09D11/38 ,  C09D11/037 ,  C09D11/033 ,  C09D11/102 ,  C09D11/12 ,  C09D11/023 ,  B41M5/00

Abstract: The present disclosure refers to an inkjet ink set comprising a black ink with a black pigment, a yellow ink with a yellow pigment, a cyan ink with a cyan pigment and a magenta ink with a magenta pigment, wherein at least one of the ink further contains a polyurethane binder; non-ionic surfactants; humectant solvent; non-volatile glycol ether co-solvent; a polyethylene wax emulsion and a balance of water. The inkjet ink set can also comprise an orange ink, a green ink and/or a violet ink. The present disclosure refers also to a system for printing the ink set described herein.

公开(公告)号：US20190177564A1

公开(公告)日：2019-06-13

申请号：US16093101

申请日：2016-07-20

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

Inventor： Alireza Rahimi ,  George Sarkisian

IPC: C09D11/38 ,  C09D11/102 ,  C09D11/322 ,  C09D11/40 ,  C09D11/54 ,  B41M5/00

CPC classification number: C09D11/38 ,  B41M5/0017 ,  C09D11/102 ,  C09D11/322 ,  C09D11/40 ,  C09D11/54

Abstract: An inkjet ink for an offset coated medium includes: water; a colorant; a binder that is a polyurethane-based dispersion; a co-solvent; and two or more surfactants. A first surfactant has a first hydrophilic lipophilic balance (HLB) value either within a water dispersible range or within a hydrophobic range and a second surfactant has a second HLB value within a hydrophobic range. The combination of the first surfactant and the second surfactant is to adjust a surface tension of the inkjet ink to a value lower than a surface tension of the offset coated medium on which the inkjet ink is to be printed.