公开(公告)号：US20230312958A1

公开(公告)日：2023-10-05

申请号：US18191960

申请日：2023-03-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroaki KIDA ,  Shintaro ASAI ,  Kei HIRUMA ,  Tomoyuki USHIYAMA ,  Mitsunobu NAKATANI ,  Kenta TSUKADA

IPC: C09D11/322 ,  C09C3/08 ,  B41J11/00

CPC classification number: C09D11/322 ,  C09C3/08 ,  B41J11/0021 ,  C08K2201/003 ,  C08K3/105

Abstract: Provided is a recording method including an adhesion step of jetting an ink composition from an ink jet head and making the ink composition adhere to a recording medium, and a primary heating step of heating the recording medium in the adhesion step, in which the adhesion step includes a step in which a jetting frequency of the ink composition is 15 kHz or greater, the ink composition contains a metal pigment and a solvent component, the solvent component contains an organic solvent, and the metal pigment is a metal particle that has a scaly shape and has a surface treated with a compound represented by Formula (1) or Formula (2).


(R1—)P(O)(OH)2  (1)



(R2—O—)aP(O)(OH)3−a  (2)

(In the formulae, R1 and R2 each independently represent a hydrocarbon group having 14 or more carbon atoms which may be substituted with a substituent, and a represents 1 or 2.)

公开(公告)号：US20220032618A1

公开(公告)日：2022-02-03

申请号：US17389528

申请日：2021-07-30

Applicant: Seiko Epson Corporation

Inventor： Tomoyuki USHIYAMA ,  Kei HIRUMA ,  Hiroaki KIDA ,  Shintaro ASAI ,  Masaru TERADA ,  Mitsunobu NAKATANI

IPC: B41J2/05 ,  C09D11/322

Abstract: An ink jet printing method includes a metallic ink application step of ejecting a metallic ink composition containing a metallic pigment from an ink jet head to apply the metallic ink composition onto a printing medium, a heating step of heating the metallic ink composition applied on the printing medium with an infrared heater, and a coloring ink application step of ejecting a coloring ink composition containing a coloring material from an ink jet head to apply the coloring ink composition onto the metallic ink composition on the printing medium. Each of the metallic ink composition and the coloring ink composition is a water-based ink or a solvent-based ink.

公开(公告)号：US20230312959A1

公开(公告)日：2023-10-05

申请号：US18191976

申请日：2023-03-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroaki KIDA ,  Shintaro ASAI

IPC: C09D11/322 ,  C09C3/08 ,  B41J2/01

CPC classification number: C09D11/322 ,  C09C3/08 ,  B41J2/01 ,  C08K2201/003 ,  C08K9/04

Abstract: Provided is an ink jet ink composition which is a solvent-based ink, the composition including a metal pigment, a polyoxyalkylene amine compound, and an organic solvent, in which the metal pigment is a metal particle having a surface treated with a surface treatment agent, the surface treatment agent is a compound represented by Formula (1) or Formula (2), the polyoxyalkylene amine compound includes a compound represented by Formula (3), and the compound represented by Formula (3) is formed such that an average of m/(m+n)×100 (%) is 20% or greater.


(R1—)P(O)(OH)2  (1)



(R2—O—)aP(O)(OH)3-a  (2)

(In Formulae (1) and (2), R1 and R2 each independently represent a hydrocarbon group having 14 or more carbon atoms which may be substituted with a substituent, and a represents 1 or 2.)


R3(OC2H4)m—(OC3H6)n—NH2  (3)

(In Formula (3), R3 represents a hydrogen atom or an alkyl group having 4 or more carbon atoms, m represents an integer of 1 or greater, n represents an integer of 0 or greater, and m+n is an integer of 10 or greater, where an arrangement order of an oxyethylene unit (OC2H4) and an oxypropylene unit (OC3H6) is optional.)

公开(公告)号：US20220243081A1

公开(公告)日：2022-08-04

申请号：US17586934

申请日：2022-01-28

Applicant: Seiko Epson Corporation

Inventor： Shintaro ASAI ,  Hiroaki KIDA ,  Kei HIRUMA ,  Tomoyuki USHIYAMA ,  Mitsunobu NAKATANI ,  Kenta TSUKADA

IPC: C09D11/322 ,  C09D11/36

Abstract: A coloring composition of the present disclosure includes a metal pigment; an acrylic-based resin having an acid value of 200 mgKOH/g or less; and a liquid medium component, the metal pigment includes metal particles, the metal particles are surface-modified with a surface treatment agent, and the surface treatment agent includes at least one selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2). (RO)aP(O)(OH)3-a  (1) (R)P(O)(OH)2  (2)

公开(公告)号：US20190300732A1

公开(公告)日：2019-10-03

申请号：US16367460

申请日：2019-03-28

Applicant: Seiko Epson Corporation

Inventor： Hiroaki KIDA ,  Hiroshi TAKIGUCHI ,  Shintaro ASAI ,  Masaru TERADA ,  Naoyuki TOYODA

IPC: C09D11/322 ,  C09C1/64 ,  C09D11/36 ,  C09D11/037 ,  C09D11/033 ,  C09D11/107

Abstract: An ink jet composition of the invention is discharged by an ink jet method and includes: metal powder; an organic solvent; and a resin having a styrene-acrylic acid structure as a binder resin, in which the ink jet composition contains metal powder surface-treated with a fluorine-based compound as the metal powder.

公开(公告)号：US20240327623A1

公开(公告)日：2024-10-03

申请号：US18617958

申请日：2024-03-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinobu YOKOKAWA ,  Shintaro ASAI ,  Hirofumi HOKARI ,  Atsushi YAMADA

IPC: C08L1/32 ,  C08B3/08 ,  C08J5/04 ,  C08K5/00

CPC classification number: C08L1/32 ,  C08B3/08 ,  C08J5/046 ,  C08K5/005 ,  C08K5/0066 ,  C08J2301/02 ,  C08L2201/02 ,  C08L2201/08 ,  C08L2205/025

Abstract: The molding material of the present disclosure includes a cellulose fiber and a specific cellulose derivative in which a part of the hydrogen atoms constituting the hydroxy groups of cellulose is substituted with a chemical structure represented by the following formula (1) or (3) and another part of the hydrogen atoms is substituted with a chemical structure represented by the following formula (2) or (4), wherein the content of the cellulose fiber is 50 mass % or more and 70 mass % or less.


—RA  (1)



—RC3—(ORC2)m—ORC1  (2)



—(C═O)RB  (3)



—(C═O)RC4—(ORC2)n—ORC1  (4)

公开(公告)号：US20230272235A1

公开(公告)日：2023-08-31

申请号：US18174871

申请日：2023-02-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Shintaro ASAI ,  Hiroaki KIDA ,  Kei HIRUMA ,  Tomoyuki USHIYAMA ,  Mitsunobu NAKATANI ,  Kenta TSUKADA

IPC: C09D11/322 ,  C09D11/102

CPC classification number: C09D11/322 ,  C09D11/102

Abstract: According to an embodiment of the present disclosure, provided is an ink jet ink composition which is a solvent-based ink, the composition including a metal pigment and an organic solvent, in which the metal pigment is a metal particle having a surface treated with a surface treatment agent, the surface treatment agent contains a compound represented by General Formula (1) and a compound represented by General Formula (2), and a mass ratio of a mass of the compound represented by General Formula (2) to a total mass of the compound represented by General Formula (1) and the compound represented by General Formula (2) is 45% by mass or less.


(R—O—)P(O)(OH)2  (1)



(R—O—)2P(O)(OH)  (2)

(In the formulae, R's each independently represent a hydrocarbon group having 8 or more carbon atoms.)

公开(公告)号：US20210095142A1

公开(公告)日：2021-04-01

申请号：US17035832

申请日：2020-09-29

Applicant: Seiko Epson Corporation

Inventor： Hiroshi TAKIGUCHI ,  Hiroaki KIDA ,  Kei HIRUMA ,  Tomoyuki USHIYAMA ,  Masaru TERADA ,  Shintaro ASAI ,  Mitsunobu NAKATANI

IPC: C09D11/102 ,  C09D11/38 ,  C09D1/00

Abstract: An ink jet composition according to the present disclosure contains a plurality of metal particles, a hydrophobic phosphorus surface treatment agent, a polyoxyalkyleneamine compound, and a solvent. The amount of the contained polyoxyalkyleneamine compound is 0.5 parts by mass to 50 parts by mass per 100 parts by mass of the metal particles.

公开(公告)号：US20190300733A1

公开(公告)日：2019-10-03

申请号：US16367604

申请日：2019-03-28

Applicant: Seiko Epson Corporation

Inventor： Hiroshi TAKIGUCHI ,  Hiroaki KIDA ,  Shintaro ASAI ,  Masaru TERADA ,  Naoyuki TOYODA

IPC: C09D11/322 ,  C09C1/64 ,  C09C1/66 ,  C09D11/36 ,  C09D11/037 ,  C09D11/033 ,  C09D11/107

Abstract: An ink jet composition of the invention is discharged by an ink jet method and includes: metal powder; an organic solvent; and a resin having a styrene-maleic acid structure as a binder resin, in which the ink jet composition contains metal powder surface-treated with a fluorine-based compound as the metal powder.

公开(公告)号：US20240327620A1

公开(公告)日：2024-10-03

申请号：US18619813

申请日：2024-03-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinobu YOKOKAWA ,  Shintaro ASAI ,  Hirofumi HOKARI ,  Atsushi YAMADA ,  Toshihiro OTAKE

IPC: C08L1/12 ,  C08J5/04

CPC classification number: C08L1/12 ,  C08J5/045 ,  C08J2301/12 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/16

Abstract: The molding material of the present disclosure includes a cellulose fiber and a specific cellulose derivative in which a part of the hydrogen atoms constituting the hydroxy groups of cellulose is substituted with a chemical structure represented by the following formula (1) and another part of the hydrogen atoms is substituted with a chemical structure represented by the following formula (2), wherein the content of the cellulose fiber is 50 mass % or more and 70 mass % or less.


—(C═O)RB  (1)



—(C═O)RC-IL  (2)