公开(公告)号：US10167404B2

公开(公告)日：2019-01-01

申请号：US15690004

申请日：2017-08-29

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

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  C09D11/326 ,  C09D11/101 ,  C09D11/40 ,  B41M5/00 ,  B41M7/00 ,  C09D11/102 ,  B41J11/00 ,  C09D11/36

Abstract: A fixable, UV curable ink includes an aqueous ink vehicle including water and a co-solvent, a pigment, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based polyurethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0° C. A water soluble or water dispersible photoinitiator is present in the fixable, UV curable ink. A base may be included in an amount sufficient to adjust a pH of the UV curable ink so that it ranges from 7.5 to 9.5. An additive may be included and selected from the group consisting of a biocide, a non-ionic surfactant, an anti-kogation agent, a buffer, and combinations thereof.

公开(公告)号：US09777179B2

公开(公告)日：2017-10-03

申请号：US15103297

申请日：2014-01-28

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

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  C09D11/326 ,  C09D11/36 ,  B41J11/00 ,  C09D11/102 ,  B41M7/00 ,  B41M5/00 ,  C09D11/40 ,  C09D11/101

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41M5/0017 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/102 ,  C09D11/326 ,  C09D11/36 ,  C09D11/40

Abstract: An ink set includes a pre-treatment fixing fluid including at least two metal salts and a fixable, ultraviolet (UV) curable ink. The UV curable ink includes an aqueous ink vehicle, a pigment dispersed in the aqueous ink vehicle, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based polyurethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0 C. A water soluble or water dispersible photoinitiator is present in the pre-treatment fixing fluid or in the fixable, UV curable ink.

公开(公告)号：US10350929B2

公开(公告)日：2019-07-16

申请号：US15760311

申请日：2016-01-21

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

Inventor： Yubai Bi ,  Alex Veis ,  Gregg A. Lane ,  Jon A Crabtree

IPC: B41M7/00 ,  B41J11/00

Abstract: In one example, a process to solidify a water-based printing fluid printed on a substrate includes flushing nonvolatile solvent in the printing fluid into the substrate with the water in the printing fluid.

公开(公告)号：US20180016458A1

公开(公告)日：2018-01-18

申请号：US15690004

申请日：2017-08-29

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

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  C09D11/36 ,  C09D11/326 ,  C09D11/102 ,  C09D11/101 ,  B41M7/00 ,  B41M5/00 ,  C09D11/40 ,  B41J11/00

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41M5/0017 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/102 ,  C09D11/326 ,  C09D11/36 ,  C09D11/40

Abstract: A fixable, UV curable ink includes an aqueous ink vehicle including water and a co-solvent, a pigment, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based polyurethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0° C. A water soluble or water dispersible photoinitiator is present in the fixable, UV curable ink. A base may be included in an amount sufficient to adjust a pH of the UV curable ink so that it ranges from 7.5 to 9.5. An additive may be included and selected from the group consisting of a biocide, a non-ionic surfactant, an anti-kogation agent, a buffer, and combinations thereof.

公开(公告)号：US20160304734A1

公开(公告)日：2016-10-20

申请号：US15103297

申请日：2014-01-28

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

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  B41J11/00 ,  C09D11/102 ,  C09D11/101 ,  C09D11/40 ,  C09D11/36

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41M5/0017 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/102 ,  C09D11/326 ,  C09D11/36 ,  C09D11/40

Abstract: An ink set includes a pre-treatment fixing fluid including at least two metal salts and a fixable, ultraviolet (UV) curable ink. The UV curable ink includes an aqueous ink vehicle, a pigment dispersed in the aqueous ink vehicle, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based poly-urethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0 C. A water soluble or water dispersible photoinitiator is present in the pre-treatment fixing fluid or in the fixable, UV curable ink.

Abstract translation: 油墨组包括包含至少两种金属盐和可固定的紫外线（UV）可固化油墨的预处理固定流体。 UV固化油墨包括水性油墨载体，分散在水性油墨载体中的颜料和分散剂。 聚氨酯聚合物分散体作为液滴悬浮在水性载体中。 所述聚氨酯聚合物分散体包括选自聚醚类聚氨酯，聚酯类聚氨酯，聚碳酸酯类聚氨酯及其混合物的聚氨酯聚合物。 聚氨酯聚合物具有i）0mg / g至小于20mg / g的酸值和ii）小于0℃的玻璃化转变温度。在预处理固定中存在水溶性或水分散性光引发剂 流体或可固定的UV固化油墨。