公开(公告)号：US20190193448A1

公开(公告)日：2019-06-27

申请号：US16331359

申请日：2017-09-18

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

Inventor： Zhang-Lin ZHOU ,  Gregg A. LANE ,  Qianhan YANG

IPC: B41M7/00 ,  C09D11/322

CPC classification number: B41M7/0045 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/30 ,  C09D11/322 ,  C09D11/40 ,  C09D11/54

Abstract: The present disclosure relates to an inkjet printing process that comprises inkjet printing an inkjet ink composition onto a substrate to form a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the inkjet ink composition is 0.1 to 30 weight %. A radiation-curable overcoat composition is applied over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water. The printed inkjet ink layer is then cured on the substrate by exposing both the overcoat layer and inkjet ink layer on the substrate to radiation.

公开(公告)号：US20220348776A1

公开(公告)日：2022-11-03

申请号：US17642293

申请日：2019-11-13

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

Inventor： Zhang-Lin Zhou ,  Julia Jiayun ZHOU ,  Qianhan YANG

IPC: C09D11/32 ,  C09D11/102 ,  C09D11/033 ,  C09D11/037 ,  C09D11/54 ,  D06P5/30 ,  D06P5/00 ,  D06P1/54 ,  D06P1/52 ,  B41J3/407

Abstract: The present disclosure describes ink compositions having a polyurethane binder that can be used for textile printing. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a polyurethane binder. The polyurethane binder can include pre-polymer segments that include polymerized monomers of a diisocyanate, a graft diol, a polymeric diol, and an acid-containing diol. The graft diol can include thioglycerol having a polymer sidechain replacing a hydrogen atom on a sulfur atom of the thioglycerol. The polymer sidechain can include a polymerized monomer of an acrylate ester, a methacrylate ester, a styrene, or a combination thereof. The polyurethane binder can also include chain extenders connecting the pre-polymer segments. The chain extenders can include a polymerized sulfonate-containing diamine.

公开(公告)号：US20210171790A1

公开(公告)日：2021-06-10

申请号：US17265861

申请日：2018-11-13

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

Inventor： Zhang-Lin ZHOU ,  Qianhan YANG

IPC: C09D11/322 ,  C09D11/107 ,  C09D11/102 ,  C09D11/033 ,  C09D11/037 ,  B41J11/00 ,  B41M5/00 ,  B41M7/00 ,  D06P5/30 ,  D06P5/20 ,  D06P1/52

Abstract: A textile printing system includes an ink composition and a fabric substrate. The ink composition includes from 50 wt % to 95 wt % water, from 4 wt % to 49 wt % organic cosolvent, from 0.5 wt % to 12 wt % pigment with a dispersant associated with a surface thereof, and from 0.5 wt % to 20 wt % polyurethane-latex hybrid particles. The polyurethane-latex hybrid particles include a polyurethane shell having an acid number from 50 mg KOH/g to 110 mg KOH/g and a (meth)acrylic latex core having a glass transition temperature from −30° C. to 50° C. A weight ratio of polyurethane shell to (meth)acrylic latex core is from 1:19 to 3:7 in this example.

公开(公告)号：US20220332971A1

公开(公告)日：2022-10-20

申请号：US17642718

申请日：2020-01-10

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

Inventor： Zhang-Lin ZHOU ,  Yubai BI ,  Qianhan YANG

IPC: C09D175/04 ,  C08L75/04 ,  C08L33/10 ,  C09D11/322

Abstract: A graft polyurethane copolymer dispersion can include dispersed polyurethane particles including a graft polyurethane copolymer. The graft polyurethane copolymer in this example includes a polyurethane backbone, a graft side-chain polymer attached to the polyurethane backbone, sulfonic acid groups, and isocyanate-generated amines. The graft side-chain polymer can include a poly(meth)acrylic moieties with C1 to C12 alkyl pendant groups, polyalkylene oxide pendant groups, or a combination thereof.

公开(公告)号：US20220325135A1

公开(公告)日：2022-10-13

申请号：US17642728

申请日：2020-04-03

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

Inventor： Zhang-Lin ZHOU ,  Or BRANDSTEIN ,  Qianhan YANG

IPC: C09D175/04 ,  C09D11/322 ,  C09D11/54 ,  D06P5/30

Abstract: The present disclosure sets forth ink compositions having a biodegradable polyurethane binder that can be used for textile printing. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a biodegradable polyurethane binder. The biodegradable polyurethane binder can include prepolymer segments including polymerized monomers of a diisocyanate and a diol. The diol can include to terminal 6-hydroxyhexanoate groups linked by an organic linking group. Chain extenders can connect the prepolymer segments. The chain extenders can include a polymerized diamine.

公开(公告)号：US20210310189A1

公开(公告)日：2021-10-07

申请号：US17265824

申请日：2018-11-12

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

Inventor： Zhang-Lin ZHOU ,  Jeff STUBBS ,  Qianhan YANG

IPC: D06P5/30 ,  D06P5/04 ,  D06P1/92

Abstract: A textile printing system can include an ink composition and a fabric substrate. The ink composition can include water, organic co-solvent, from 0.5 wt % to 10 wt % pigment, wherein the pigment has a dispersant associated with a surface thereof, and from 0.5 wt % to 20 wt % latex particles including styrene (meth)acrylic polymer having an acid number from 0 mg KOH/g to 60 mg KOH/g and a glass transition temperature from −30° C. to 50° C. The latex particles are uncrosslinked.

公开(公告)号：US20210163773A1

公开(公告)日：2021-06-03

申请号：US17267090

申请日：2018-12-18

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

Inventor： Zhang-Lin ZHOU ,  Qianhan YANG

IPC: C09D11/54 ,  C09D11/322 ,  C09D11/104 ,  B41M5/00 ,  D06P5/30

Abstract: A fluid set can include an ink composition including water, organic co-solvent, pigment having dispersant associated with or attached thereto, and from 0.5 wt % to 20 wt % of polymer binder particles selected from polyurethane particles including a polyurethane polymer with sulfonated amine groups, or polyurethane-latex hybrid particles. The fluid set can also include a crosslinker composition including water, organic co-solvent, and from 2 wt % to 10 wt % polycarbodiimide.

公开(公告)号：US20190218404A1

公开(公告)日：2019-07-18

申请号：US16335460

申请日：2017-01-31

Applicant: Hewlett-Packard Development Company, L.P

Inventor： Zhang-Lin ZHOU ,  Rodney David STRAMEL ,  Qianhan YANG

IPC: C09D11/101 ,  C08G18/67 ,  C08G18/75 ,  C09D11/102 ,  C09D11/30

CPC classification number: C09D11/101 ,  C08G18/0828 ,  C08G18/246 ,  C08G18/3857 ,  C08G18/6705 ,  C08G18/6715 ,  C08G18/675 ,  C08G18/755 ,  C08G18/758 ,  C08G18/815 ,  C08G18/8166 ,  C09D11/102 ,  C09D11/30 ,  C09D175/16

Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, a styrene-containing diol, or combination thereof. The first capping unit can be a styrene-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.