公开(公告)号：US20250050643A1

公开(公告)日：2025-02-13

申请号：US18796763

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： ERIKO YOSHINO ,  SOICHI NAGAI ,  ATSUHITO YOSHIZAWA

IPC: B41J2/165 ,  B41J2/175 ,  C09D11/037 ,  C09D11/324

Abstract: Provided is an ink jet recording method with which, even when a recording head in which a protective tape is bonded to an ejection orifice surface which is a water-repellent surface is used, occurrence of ejection misdirection of an ink is suppressed, and the ejection misdirection hardly occurs even after long-period use. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including a wiping unit for an ejection orifice surface subjected to water-repellent treatment. A protective tape to be peeled at the time of use is bonded to the ejection orifice surface. The method includes a first cleaning sequence of wiping the ejection orifice surface through use of one wiper having a blade shape, the first cleaning sequence including a first wiping step and a second wiping step.

公开(公告)号：US20240399753A1

公开(公告)日：2024-12-05

申请号：US18670925

申请日：2024-05-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUKO NISHIWAKI ,  SOICHI NAGAI ,  ATSUHITO YOSHIZAWA ,  ERIKO YOSHINO

IPC: B41J2/175 ,  C09D11/322 ,  C09D11/324

Abstract: An ink jet recording method is provided that can record high quality images over a long period of time while suppressing a decrease in optical density at the edge of a black image adjacent to a color image, even in the case where an ink jet recording apparatus having a large capacity ink storage portion having an openable and closable ink inlet port is used. The method is an ink jet recording method including, using an ink jet recording apparatus having a first ink storage portion, a second ink storage portion and a recording head that ejects an aqueous ink, recording an image. The aqueous ink includes a black ink, and a color ink containing an organic pigment, and the content P1 of the carbon black in the black ink and the content P2 of the organic pigment in the color ink satisfy P1≤P2.

公开(公告)号：US20240399748A1

公开(公告)日：2024-12-05

申请号：US18670889

申请日：2024-05-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： SOICHI NAGAI ,  YUKO NISHIWAKI ,  ATSUHITO YOSHIZAWA ,  ERIKO YOSHINO

IPC: B41J2/165 ,  B41J2/175 ,  C09D11/033 ,  C09D11/037 ,  C09D11/102 ,  C09D11/322

Abstract: Provided is an ink jet recording method by which an image excellent in water resistance and scratch resistance can be recorded while the occurrence of ejection misdirection immediately after the start of initial use is suppressed. The method is an ink jet recording method including recording an image with an ink jet recording apparatus including: an aqueous ink containing an organic pigment and a resin; an ink storage portion configured to store the aqueous ink; a recording head incorporated into the ink storage portion, the recording head having an ejection orifice surface having formed storage portion; and a wiping unit configured to wipe the ejection orifice surface, the recording being performed by applying the aqueous ink ejected from the ejection orifice to a recording medium.

公开(公告)号：US20250051598A1

公开(公告)日：2025-02-13

申请号：US18796751

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： ERIKO YOSHINO ,  SOICHI NAGAI ,  ATSUHITO YOSHIZAWA ,  YUKO NISHIWAKI

IPC: C09D11/322 ,  B41J2/175 ,  B41J2/21 ,  C09D11/38

Abstract: Provided is an ink jet recording method with which, even when a downsized recording apparatus having mounted thereon a recording unit in which a recording head for ejecting an ink by thermal energy is incorporated into an ink storage portion is used and an aqueous ink containing a pigment is used, while the strength of the recording unit is maintained, an ejection characteristic is less liable to be degraded and an image excellent in color developability can be recorded. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including an aqueous ink, an ink storage portion, and a recording head. The ink storage portion includes three or more storage parts divided independently, and the storage parts are arrayed in one predetermined direction. A yellow ink containing C.I. Pigment Yellow 74 is stored in the storage part arranged on an inner side.

公开(公告)号：US20250051597A1

公开(公告)日：2025-02-13

申请号：US18796709

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： SOICHI NAGAI ,  YUKO NISHIWAKI ,  ERIKO YOSHINO ,  ATSUHITO YOSHIZAWA

IPC: C09D11/322 ,  B41J2/175 ,  B41J2/21 ,  C09D11/38 ,  C09D11/40

Abstract: Provided is an ink jet recording method with which, even when an ink jet recording apparatus having mounted thereon a recording unit in a form in which a recording head is incorporated into an ink storage portion is used and an aqueous ink containing a pigment is used, while the strength of the recording unit is maintained, an intermittent ejection stability of the aqueous ink is less liable to be reduced and an image excellent in light fastness can be recorded. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including an aqueous ink, an ink storage portion, and a recording head. The ink storage portion includes three or more storage parts, and the storage parts are arrayed in one predetermined direction. A magenta ink containing a quinacridone pigment is stored in the storage part arranged on an inner side.

公开(公告)号：US20250051596A1

公开(公告)日：2025-02-13

申请号：US18796693

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： ATSUHITO YOSHIZAWA ,  SOICHI NAGAI ,  YUKO NISHIWAKI ,  ERIKO YOSHINO

IPC: C09D11/322 ,  B41J2/175 ,  B41J2/21

Abstract: Provided is an ink jet recording method using a downsized recording apparatus having mounted thereon a recording unit in a form in which a recording head is incorporated into an ink storage portion, and providing an excellent sticking recovery property while maintaining a strength of the recording unit even when an aqueous ink containing a pigment is used. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including: an aqueous ink; an ink storage portion; and a recording head. The ink storage portion includes three or more storage parts divided and arrayed in one predetermined direction. A specific gravity of a pigment in the aqueous ink stored in the storage part arranged on an inner side is larger than a specific gravity of a pigment in the aqueous ink stored in each of the storage parts arranged at both end portions.

公开(公告)号：US20250050646A1

公开(公告)日：2025-02-13

申请号：US18796734

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUKO NISHIWAKI ,  SOICHI NAGAI ,  ATSUHITO YOSHIZAWA ,  ERIKO YOSHINO

IPC: B41J2/175 ,  B41J2/21

Abstract: Provided is an ink jet recording method, while the strength of the recording unit is maintained, an image having a high quality with reduced bleeding can be recorded. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including an aqueous ink, an ink storage portion, and a recording head. The ink storage portion includes three or more storage parts divided independently of each other by a partition portion arranged orthogonal to a longitudinal direction of the ink storage portion, and the storage parts are arrayed in one predetermined direction. The aqueous ink includes a cyan ink, a magenta ink and a yellow ink and the ink corresponding to the ejection orifice array arranged at a middle out of the three rows of ejection orifice arrays has a smallest dynamic surface tension γ10 at a lifetime of 10 milliseconds.