公开(公告)号：US20200247165A1

公开(公告)日：2020-08-06

申请号：US16336722

申请日：2017-01-31

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

Inventor： Kai-Kong Iu ,  Howard Doumaux

IPC: B41M5/00 ,  B41J2/175 ,  B41J29/393 ,  C09D11/14 ,  C09D11/328

Abstract: Herein is described an inkjet printer cartridge, comprising: a printhead having a flow path; a reservoir in fluid communication with the printhead flow path, the reservoir containing an inkjet ink composition; and a shipping fluid present in the printhead flow path, wherein the shipping fluid comprises: a fadable colorant; a carbohydrate; and a liquid vehicle. A method of performing a nozzle check for an inkjet printhead is also described.

公开(公告)号：US10723901B2

公开(公告)日：2020-07-28

申请号：US16333141

申请日：2017-01-31

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

Inventor： Howard Doumaux ,  Eduardo Amela Conesa

IPC: C09D11/40 ,  C09D11/107 ,  C09D11/322 ,  B41J2/21 ,  B41M5/00 ,  C09D11/033 ,  C09D11/037

Abstract: Herein is described an ink set for use in inkjet printing, comprising: a first cyan ink comprising from 1 wt % to 2.5 wt % of a cyan pigment, from 5 wt % to 15 wt % of a latex binder, and an ink vehicle; a second cyan ink comprising from 0.25 wt % to 0.64 wt % of a cyan pigment, from 5 wt % to 15 wt % of a latex binder, and an ink vehicle; a first magenta ink comprising from 2 wt % to 4 wt % of a magenta pigment, from 5 wt % to 15 wt % of a latex binder, and an ink vehicle; and a second magenta ink comprising from 0.4 wt % to 0.97 wt % of a magenta pigment, from 5 wt % to 15 wt % of a latex binder, and an ink vehicle, and methods of printing using the inkset.

公开(公告)号：US20200224051A1

公开(公告)日：2020-07-16

申请号：US16648902

申请日：2017-11-08

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

Inventor： Howard Doumaux ,  Ronald Albert Askeland ,  Raffaella Fior

IPC: C09D11/54 ,  C09D11/102 ,  C09D11/328 ,  C09D11/38 ,  D06P5/30 ,  D06P5/00 ,  D06P5/28 ,  D06P1/16 ,  B41M5/00

Abstract: An example of an inkjet pre-treatment fluid for dye sublimation printing consists of a humectant; a cationic polymer; a surfactant; a co-solvent present in an amount up to about 50 wt % based on a total weight of the inkjet pre-treatment fluid; and a balance of water. In an example of a printing method, the inkjet pre-treatment fluid is inkjet printed onto a textile substrate to form a pre-treated area on the textile substrate.

公开(公告)号：US20190241756A1

公开(公告)日：2019-08-08

申请号：US16339547

申请日：2017-01-31

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

Inventor： Howard Doumaux ,  Mariano Dinares Argemi ,  Jennifer Korngiebel ,  Tuo Wu ,  Madhu Babu

IPC: C09D11/328 ,  C09D11/033 ,  C09D11/037 ,  C09D11/14 ,  B41M5/00 ,  B41J2/175

CPC classification number: C09D11/328 ,  B41J2/17533 ,  B41M5/0023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/14 ,  C09D11/38

Abstract: An example of a shipping fluid for a printhead device includes at least one solvent, at least one additive, at least one surfactant, and water. The solvent includes at least one carbohydrate in an amount of about 10 wt % or more based on the total weight of the shipping fluid. The shipping fluid does not contain a visible colorant, which absorbs light in wavelengths of greater than 400 nm and wavelengths of less than 700 nm. The shipping fluid is free of n-alkyl pyrrolidone.

公开(公告)号：US20190233671A1

公开(公告)日：2019-08-01

申请号：US16331062

申请日：2017-01-31

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

Inventor： Howard Doumaux ,  Eduardo Amela Conesa ,  Andreas Muller ,  Kai-Kong Iu

IPC: C09D11/40 ,  C09D11/102 ,  C09D11/107 ,  C09D11/037 ,  C09D11/033 ,  C09D11/322 ,  C09D11/54 ,  B41J2/145 ,  B41M5/00

Abstract: Herein is described a method of inkijet printing, and compositions and inksets for use in the method, the method comprising: printing onto a non-porous substrate an inkjet fixing composition comprising a cationic polymer in an amount of less than 5 wt. %; an organic acid in an amount of 3 wt. % or less; and a liquid vehicle; and printing a latex-containing inkjet ink composition onto the non-porous substrate.