公开(公告)号：US20220145111A1

公开(公告)日：2022-05-12

申请号：US17436912

申请日：2019-12-02

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

Inventor： Raymond Adamic ,  Kellie S. Dalby

IPC: C09D11/40 ,  C09D11/322 ,  C09D11/033 ,  C09D11/037 ,  C09D11/107

Abstract: An inkjet overcoat composition includes an aqueous vehicle. The inkjet overcoat composition also includes modified silica nanoparticles dispersed in the aqueous vehicle and a sugar alcohol dissolved or dispersed in the aqueous vehicle. Each modified silica nanoparticle includes a silica core and a hydrotropic silane coupling agent attached to the silica core.

公开(公告)号：US10364367B2

公开(公告)日：2019-07-30

申请号：US15561835

申请日：2015-07-24

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

Inventor： Raymond Adamic ,  Brian Dooley

IPC: C09D11/38 ,  C09D11/14 ,  C09D11/033 ,  C09D11/106 ,  C09D11/324

Abstract: An example of a non-Newtonian inkjet ink includes first and second metal oxide nanoparticles, a colorant, an organic solvent, and a balance of water. The first metal oxide nanoparticle has a particle size of 10 nm or less, and is present in an amount ranging from about 5% to about 15% by weight based on a total weight of the ink. The second metal oxide nanoparticle has at least one dimension greater than 10 nm, and is present in an amount ranging from 0.25% to 10% by weight based on the total weight of the ink. The colorant is present in an amount ranging from about 0.5% to about 10% by weight based on the total weight of the ink. The organic solvent is present in an amount ranging from about 5% to about 50% by weight based on the total weight of the ink.

公开(公告)号：US10077370B2

公开(公告)日：2018-09-18

申请号：US15512814

申请日：2014-09-26

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

Inventor： James P. Shields ,  Raymond Adamic ,  Sundar Vasudevan

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09D11/38 ,  C09D11/033 ,  C09D11/101 ,  C09D11/106 ,  C09D11/107 ,  C09D11/322

CPC classification number: C09D11/38 ,  C09D11/033 ,  C09D11/101 ,  C09D11/104 ,  C09D11/106 ,  C09D11/107 ,  C09D11/322 ,  C09D11/324 ,  C09D11/328

Abstract: A non-Newtonian photo-curable ink composition that comprises a structured network forming agent in an amount ranging from about 0.1 wt % to about 20 wt % by total weight of the ink composition; a salt in an amount ranging from about 0.05 wt % to about 20 wt % by total weight of the ink composition; an organic solvent; a photo-initiator; and a polymerizable material; wherein the ink composition has a first dynamic viscosity ranging from 25 cps to 10,000 cps at a first state and a second dynamic viscosity ranging from 1 cps to 50 cps at a second state. Also described herein is a method for making such non-Newtonian photo-curable ink composition and a method for producing printed images using such non-Newtonian photo-curable ink composition.

公开(公告)号：US20170247559A1

公开(公告)日：2017-08-31

申请号：US15519368

申请日：2014-10-20

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

Inventor： Raymond Adamic ,  Sundar Vasudevan

IPC: C09D11/38 ,  C09D11/033 ,  B41J2/175 ,  C09D11/322

CPC classification number: C09D11/38 ,  B41J2/17513 ,  B41J2/17553 ,  C09D11/033 ,  C09D11/322

Abstract: The present disclosure provides non-Newtonian inkjet inks and related methods. In one example, a non-Newtonian inkjet ink can comprise silica, alumina, and organic solvent. The non-Newtonian inkjet ink can be an aqueous ink having a pH from 9 to 12 and a conductivity from 100 to 2000 μS/cm.

公开(公告)号：US20150343798A1

公开(公告)日：2015-12-03

申请号：US14648088

申请日：2012-11-30

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

Inventor： Thomas A. Saksa ,  Raymond Adamic

IPC: B41J11/00

CPC classification number: B41J11/0015 ,  B41J29/26

Abstract: In an embodiment, an ink erasing system includes an erase fluid dispenser to apply erase fluid to a surface of a print medium. The system includes a plurality of nonadjacent pairs of electrodes positioned across a width of the print medium. The system also includes a controller to direct the erase fluid dispenser to apply the erase fluid in an erase region on the print medium, and to alternately electrify the nonadjacent pairs of electrodes to generate a moving electric field through the erase region.

Abstract translation: 在一个实施例中，墨擦除系统包括擦除流体分配器以将擦除流体施加到打印介质的表面。 该系统包括跨越打印介质的宽度定位的多个不相邻的电极对。 该系统还包括控制器，用于引导擦除流体分配器将擦除流体施加到打印介质上的擦除区域中，并交替地使不相邻的电极对通电，以通过擦除区域产生移动的电场。

公开(公告)号：US20210071019A1

公开(公告)日：2021-03-11

申请号：US16607782

申请日：2018-04-12

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

Inventor： Goeun Sim ,  Raymond Adamic

IPC: C09D11/14 ,  C09D11/322 ,  C09D11/328 ,  C08L1/04 ,  C08K5/053 ,  C08K5/098 ,  C08K5/19 ,  C08K9/04 ,  B41J11/00

Abstract: A thermal inkjet ink composition includes cellulose nanocrystals (CNCs). The cellulose nanocrystals are present in the thermal inkjet ink composition in an amount ranging from 0.5 wt % up to 3.5 wt %, based on a total weight of the thermal inkjet ink composition. The thermal inkjet ink composition further includes a sugar alcohol present in an amount ranging from 3 wt % up to about 8 wt % based on the total weight of the thermal inkjet ink composition, an organic salt present in an amount ranging from about 0.05 wt % to about 0.5 wt % based on the total weight of the thermal inkjet ink composition, a pigment, a polar solvent, and a balance of water.

公开(公告)号：US09963608B2

公开(公告)日：2018-05-08

申请号：US15519368

申请日：2014-10-20

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

Inventor： Raymond Adamic ,  Sundar Vasudevan

IPC: C09D11/38 ,  C09D11/033 ,  C09D11/322 ,  B41J2/175

CPC classification number: C09D11/38 ,  B41J2/17513 ,  B41J2/17553 ,  C09D11/033 ,  C09D11/322

Abstract: The present disclosure provides non-Newtonian inkjet inks and related methods. In one example, a non-Newtonian inkjet ink can comprise silica, alumina, and organic solvent. The non-Newtonian inkjet ink can be an aqueous ink having a pH from 9 to 12 and a conductivity from 100 to 2000 μS/cm.

公开(公告)号：US09963607B2

公开(公告)日：2018-05-08

申请号：US15118977

申请日：2014-03-06

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

Inventor： Raymond Adamic ,  Vladimir Jakubek ,  James P. Shields

IPC: C09D11/38 ,  B41J2/01 ,  B41M5/00 ,  B41J2/04 ,  C09D11/033 ,  C09D11/324 ,  C09D11/40 ,  B41J2/21

CPC classification number: C09D11/38 ,  B41J2/01 ,  B41J2/04 ,  B41J2/2107 ,  B41M5/0023 ,  C09D11/033 ,  C09D11/324 ,  C09D11/40

Abstract: The present disclosure provides non-Newtonian inkjet inks and related methods. In one example, a non-Newtonian inkjet ink can comprise a low molecular weight organic gelator in an amount ranging from 0.1% to 10% by weight based on the total weight of the non-Newtonian inkjet ink; a salt in an amount of 0.05% to 20% by weight based on the total weight of the non-Newtonian inkjet ink; and an organic solvent. Additionally, the low molecular weight organic gelator and the salt can form a structured network and the inkjet ink can have a viscosity ranging from 100 cps to 10,000 cps at a temperature of 25° C. and a viscosity ranging from 1 cps to 10 cps at a temperature of 50° C.

公开(公告)号：US20220363929A1

公开(公告)日：2022-11-17

申请号：US17763538

申请日：2019-12-02

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

Inventor： Kellie S. Dalby ,  Raymond Adamic ,  Garry Hinch

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/328 ,  C08K3/36 ,  C08K9/06

Abstract: An example of an inkjet ink composition includes an aqueous vehicle, a colorant dispersed or dissolved in the aqueous vehicle, silica nanoparticles dispersed in the aqueous vehicle, and modified silica nanoparticles dispersed in the aqueous vehicle. Each modified silica nanoparticle includes a silica core as well as a hydrophobic silane coupling agent attached to the silica core.

公开(公告)号：US20210292585A1

公开(公告)日：2021-09-23

申请号：US17267353

申请日：2018-12-18

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

Inventor： Raymond Adamic

IPC: C09D11/38 ,  C09D11/326 ,  C09D11/322 ,  C09D11/107 ,  C09D11/102 ,  B41M5/00

Abstract: An example of an aqueous inkjet ink includes a wetting package, a co-solvent, a colorant, and a balance of water. The wetting package includes a 1,2-alkanediol having 10 or more carbon atoms, and a free dispersant. Examples of the aqueous inkjet ink may be used in printing methods with a substrate selected from the group consisting of a vinyl substrate, a polyvinylchloride substrate, a stainless steel substrate, a silicon substrate, an acrylic substrate, an acrylate substrate, a polyethylene substrate, and a non-treated polypropylene substrate.