公开(公告)号：US20190390073A1

公开(公告)日：2019-12-26

申请号：US16016035

申请日：2018-06-22

Applicant: Xerox Corporation

Inventor： C. Geoffrey Allen ,  Carolyn Moorlag ,  Aurelian Valeriu Magdalinis ,  Biby Esther Abraham ,  Jonathan Siu-Chung Lee

IPC: C09D11/101 ,  C09D11/104 ,  B41F7/02

Abstract: A composition including at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one photoinitiator that absorbs at an ultraviolet light-emitting diode wavelength; and at least one photoinitiator that does not absorb radiation at the ultraviolet light-emitting diode wavelength. A process of digital offset printing including applying a composition onto a re-imageable imaging member surface at an ink take up temperature, the re-imageable imaging member having dampening fluid disposed thereon; forming an ink image; transferring the ink image from the re-imageable surface of the imaging member to a printable substrate at an ink transfer temperature. A process including combining at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one photoinitiator that absorbs at an ultraviolet light-emitting diode wavelength; and at least one photoinitiator that does not absorb radiation at the ultraviolet light-emitting diode wavelength; optionally, heating; and optionally, filtering; to provide an LED curable composition.

公开(公告)号：US09822267B1

公开(公告)日：2017-11-21

申请号：US15262871

申请日：2016-09-12

Applicant: XEROX CORPORATION

Inventor： James D. Mayo ,  Guerino G. Sacripante ,  Marcel P. Breton ,  Aurelian Valeriu Magdalinis ,  Jonathan Siu-Chung Lee ,  Mihaela Maria Birau

IPC: C09D11/104 ,  G03F7/00 ,  C09D167/02 ,  B41F7/24

CPC classification number: C09D11/104 ,  B41F7/24 ,  C09D11/00 ,  C09D11/10 ,  C09D11/101 ,  C09D11/34 ,  C09D167/02 ,  G03F7/0002

Abstract: An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. The ink is formulated to incorporate polyester viscosity modifier to help meet the requirement of two different viscosity or temperature pairs at two different stages of the process. In digital offset printing a bulk ink is first transferred onto an anilox roll, and then from the anilox roll onto the imaging cylinder blanket. During the bulk ink to anilox roll the disclosed ink has a low viscosity while the transfer from roll to imaging blanket the ink has a higher viscosity. The addition of the polyester viscosity modifier increases the viscosity difference within the allowable temperature range, thus, increasing process latitude and robustness.

公开(公告)号：US10604668B2

公开(公告)日：2020-03-31

申请号：US16000401

申请日：2018-06-05

Applicant: Xerox Corporation

Inventor： Naveen Chopra ,  Rob Claridge ,  Biby Esther Abraham ,  Carolyn Moorlag ,  Jonathan Siu-Chung Lee ,  Guerino Sacripante

IPC: C09D11/04 ,  C09D11/104 ,  C09D11/101 ,  B41M1/06 ,  C09D11/033

Abstract: An aqueous ink composition including water, an optional co-solvent, a sulfonated polyester, and a polyurethane dispersion, and process of making thereof.

公开(公告)号：US20180105712A1

公开(公告)日：2018-04-19

申请号：US15296755

申请日：2016-10-18

Applicant: Xerox Corporation

Inventor： Mihaela Maria Birau ,  Marcel P. Breton ,  James D. Mayo ,  Aurelian Valeriu Magdalinis ,  Jonathan Siu-Chung Lee ,  Biby Esther Abraham ,  Naveen Chopra ,  Yvan Gagnon

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/101 ,  B41F9/00

CPC classification number: B41F9/00 ,  B41M1/00 ,  C09D11/037 ,  C09D11/10 ,  C09D11/101

Abstract: An ink composition for use in digital offset printing including a white colorant, a translucent colorant, or a combination thereof; wherein the white colorant, translucent colorant, or combination thereof is present in an amount of at least 50 percent by weight based on the total weight of the ink composition; at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one phase change agent; an optional dispersant; an optional photoinitiator. A process of digital offset printing including applying the ink composition onto a re-imageable imaging member surface at an ink take up temperature, the re-imageable imaging member having dampening fluid disposed thereon; forming an ink image; transferring the ink image from the re-imageable surface of the imaging member to a printable substrate at an ink transfer temperature.

公开(公告)号：US20190390072A1

公开(公告)日：2019-12-26

申请号：US16015982

申请日：2018-06-22

Applicant: Xerox Corporation

Inventor： C. Geoffrey Allen ,  Carolyn Moorlag ,  Aurelian Valeriu Magdalinis ,  Biby Esther Abraham ,  Jonathan Siu-Chung Lee

IPC: C09D11/101 ,  C09D11/104

Abstract: An ink composition including at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one non-radiation curable poly-alpha-olefin; at least one photoinitiator that absorbs at an ultraviolet light-emitting diode wavelength; and an optional colorant. A process of digital offset printing including applying an ink composition onto a re-imageable imaging member surface at an ink take up temperature, the re-imageable imaging member having dampening fluid disposed thereon; forming an ink image; transferring the ink image from the re-imageable surface of the imaging member to a printable substrate at an ink transfer temperature; wherein the ink composition comprises at least one component selected from the group consisting of a curable monomer and a curable oligomer; at least one non-radiation curable poly-alpha-olefin; at least one photoinitiator that absorbs at an ultraviolet light-emitting diode wavelength; and an optional colorant.

公开(公告)号：US20190270897A1

公开(公告)日：2019-09-05

申请号：US15910512

申请日：2018-03-02

Applicant: Xerox Corporation

Inventor： C. Geoffrey Allen ,  Carolyn Moorlag ,  Aurelian Valeriu Magdalinis ,  Biby Esther Abraham ,  Jonathan Siu-Chung Lee

IPC: C09D11/12 ,  C09D11/107 ,  C09D11/104 ,  C09D11/101 ,  B41F7/02 ,  B41F7/26

Abstract: An ink composition for use in digital offset printing including at least one component selected from the group consisting of a curable monomer and a curable oligomer; an optional colorant; an optional dispersant; an optional photoinitiator; and at least one non-radiation curable additive, wherein the non-radiation curable additive is a solid at a temperature of from about 20° C. to about 40° C. A process of digital offset printing including applying the ink composition onto a re-imageable imaging member surface at an ink take up temperature, the re-imageable imaging member having dampening fluid disposed thereon; forming an ink image; transferring the ink image from the re-imageable surface of the imaging member to a printable substrate at an ink transfer temperature.

公开(公告)号：US20180104913A1

公开(公告)日：2018-04-19

申请号：US15293164

申请日：2016-10-13

Applicant: XEROX CORPORATION

Inventor： Naveen Chopra ,  Baharak Bakhshaei ,  Marcel P. Breton ,  Gordon Sisler ,  Carolyn Moorlag ,  Saleh Jiddawi ,  Jonathan Siu-Chung Lee ,  C. Geoffrey Allen

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D171/02

Abstract: A support material for use in additive manufacturing includes greater than about 30 weight percent up to about 70 weight percent of a C12 to C18 fatty alcohol ethoxylate and about 30 weight percent to about 70 weight percent of a C16 to C22 fatty alcohol, a transition temperature measured as the temperature immediately before phase change, based on viscosity measurement, is less than about 65° C. A system for additive manufacturing includes such a support material and a build material, the ratio of C12 to C18 fatty alcohol ethoxylate to C16 to C22 fatty alcohol is selected for property matching of the support material to the build material. A method of additive manufacturing includes providing such a system and printing via an inkjet printer the support material and the build material to provide a precursor to a three-dimensional printed article.

公开(公告)号：US11440311B2

公开(公告)日：2022-09-13

申请号：US15920652

申请日：2018-03-14

Applicant: Xerox Corporation

Inventor： C. Geoffrey Allen ,  Carolyn Moorlag ,  Aurelian Valeriu Magdalinis ,  Biby Esther Abraham ,  Jonathan Siu-Chung Lee

IPC: B41M1/06 ,  B41M5/00 ,  B41N3/06 ,  B41N3/08 ,  C09D11/03 ,  C09D11/101 ,  C09D11/102 ,  C09D11/104 ,  C09D11/106 ,  C09D11/023 ,  C09D11/06 ,  B41F7/02 ,  B41F7/16 ,  B41F7/26 ,  B41F23/00 ,  G03F7/027

Abstract: An ink composition for use in digital offset printing including at least one component selected from the group consisting of a curable monomer and a curable oligomer; an optional dispersant; an optional photoinitiator; and at least one non-radiation curable additive, wherein the non-radiation curable additive is a detergent or an emulsifying agent, or wherein the non-radiation curable additive functions as a detergent or emulsifying agent when in the presence of a cleaning fluid, and wherein the non-radiation curable additive is a solid at a temperature of from about 20° C. to about 40° C.

公开(公告)号：US20190283395A1

公开(公告)日：2019-09-19

申请号：US15920652

申请日：2018-03-14

Applicant: Xerox Corporation

Inventor： C. Geoffrey Allen ,  Carolyn Moorlag ,  Aurelian Valeriu Magdalinis ,  Biby Esther Abraham ,  Jonathan Siu-Chung Lee

IPC: B41F7/02 ,  C09D11/101 ,  C09D11/03 ,  C09D11/102 ,  C09D11/106 ,  C09D11/104 ,  B41N3/06 ,  B41M5/00 ,  B41N3/08 ,  B41F23/00 ,  B41F7/16 ,  B41F7/26 ,  B41M1/06

Abstract: An ink composition for use in digital offset printing including at least one component selected from the group consisting of a curable monomer and a curable oligomer; an optional dispersant; an optional photoinitiator; and at least one non-radiation curable additive, wherein the non-radiation curable additive is a detergent or an emulsifying agent, or wherein the non-radiation curable additive functions as a detergent or emulsifying agent when in the presence of a cleaning fluid, and wherein the non-radiation curable additive is a solid at a temperature of from about 20° C. to about 40° C.

公开(公告)号：US20180163064A1

公开(公告)日：2018-06-14

申请号：US15377881

申请日：2016-12-13

Applicant: XEROX CORPORATION

Inventor： Mihaela Maria Birau ,  Marcel P. Breton ,  Guerino Sacripante ,  Aurelian Valeriu Magdalinis ,  Jonathan Siu-Chung Lee ,  Biby Esther Abraham ,  Yvan Gagnon ,  Teja Manabotula

IPC: C09D11/03 ,  C09D11/101 ,  C09D11/037 ,  B41F7/02 ,  B41F7/24

CPC classification number: C09D11/03 ,  B41F7/02 ,  B41F7/24 ,  C09D11/037 ,  C09D11/101 ,  C09D11/104

Abstract: A white ink composition is disclosed. The white ink composition comprises an ink vehicle comprising at least one compound chosen from acrylate monomers, methacrylate monomers, acrylate oligomers and methacrylate oligomers; at least one polyester resin that exhibits a crystalline structure at temperatures at or below a recrystallization temperature and that has a melting temperature below 120° C.; at least one photoinitiator; a filler comprising at least one component chosen from clay fillers and silica fillers; and at least one white colorant.