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公开(公告)号：US11904615B2
公开(公告)日：2024-02-20
申请号：US17177639
申请日：2021-02-17
发明人： Keigo Ando , Ippei Okuda
CPC分类号： B41J2/2117 , B41J2/01 , B41M5/0011 , C09D11/322 , C09D11/38 , C09D11/40 , C09D11/54
摘要： A recording method for recording on a recording medium, which is a non-white recording medium, includes a white ink adhering step of adhering a white ink containing a white coloring material to the recording medium, and a non-white ink adhering step of adhering a non-white ink containing a non-white coloring material to the recording medium, in which the white ink adhering step and the non-white ink adhering step are performed by causing a recording head to scan the recording medium, the white ink adhering step and the non-white ink adhering step are performed on a region of the recording medium by a scan, and the white ink adhering step and the non-white ink adhering step are performed such that, in the region where the white ink and the non-white ink are adhered, the mass ratio (A/B) of an adhesion amount A of the white coloring material to an adhesion amount B of the non-white coloring material per unit area is 0.03 or more and 0.99 or less.
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公开(公告)号：US11267982B2
公开(公告)日：2022-03-08
申请号：US16354288
申请日：2019-03-15
发明人： Ippei Okuda
IPC分类号： B41J2/21 , C09D11/54 , C09D11/322 , C09D11/38 , C09D11/40 , B41M7/00 , B41M5/00 , C09D11/106 , C09D11/102 , C09D11/326
摘要： A recording method includes: causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium; causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and causing a clear ink composition that includes resin to adhere to the recording medium.
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公开(公告)号：US11149159B2
公开(公告)日：2021-10-19
申请号：US16354300
申请日：2019-03-15
发明人： Ippei Okuda , Tsuyoshi Sano
IPC分类号： C09D11/322 , C09D11/54 , B41M5/00 , C09D11/324 , C09D11/033 , C09D11/037 , C09D11/102 , C09D11/107
摘要： A water-based ink jet ink composition includes: a coloring material; and resin, a content of the coloring material being equal to or less than 1.5% by mass with respect to the ink composition, a change in a volume average particle diameter of the resin after mixing a water-mediated solution for the resin and a 0.3 M magnesium sulfate aqueous solution is equal to or less than three times as large as a change in the volume average particle diameter before the mixing, and the ink composition is used by being caused to adhere to a recording medium along with a processing solution that contains a coagulant for coagulating constituents of the ink composition.
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公开(公告)号：US11111404B2
公开(公告)日：2021-09-07
申请号：US16574428
申请日：2019-09-18
发明人： Ippei Okuda
IPC分类号： C09D11/322 , B41J2/21 , C09D11/38 , C08L91/00
摘要： A printing method includes a white ink application step of ejecting a white ink from a printing head to apply the white ink onto a printing medium, a non-white ink application step of ejecting a non-white ink containing a non-white coloring material from a printing head to apply the non-white ink onto the printing medium, and a treatment liquid application step of applying a treatment liquid containing a flocculant onto the printing medium. The white ink contains a white pigment and inorganic fine particles having a smaller volume average particle size than the white pigment.
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公开(公告)号：US11059988B2
公开(公告)日：2021-07-13
申请号：US16285365
申请日：2019-02-26
发明人： Ippei Okuda , Tsuyoshi Sano
摘要： An ink jet recording method is provided for a low or non-absorbable recording medium using a solution containing a colored ink, a clear ink, and an aggregating agent for aggregating constituents in the colored ink. The method includes: causing the solution containing the aggregating agent to adhere to the recording medium; and a main scanning in which the colored and the clear inks are ejected while relative positions of an ink jet head and the recording medium are changed to a main scanning direction, and a sub-scanning in which the relative positions of the ink jet head and the recording medium are changed to a sub-scanning direction. The main scanning involves a region where a recording region in which the colored ink is ejected in the main scanning and a recording region in which the clear ink is ejected in the main scanning overlap one another.
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公开(公告)号：US11014392B2
公开(公告)日：2021-05-25
申请号：US16506109
申请日：2019-07-09
发明人： Ippei Okuda , Mitsuaki Kosaka
摘要： According to the invention, there is provided a recording method which includes adhering an ink composition to a recording medium, and adhering a reaction liquid to the recording medium, the reaction liquid containing water and a reagent for aggregating or thickening components of the ink composition, and having a pH of 7 to 10. In the adhering of the reaction liquid, an epoxy-based adhesive is used for at least a portion of a reaction liquid passage for supplying the reaction liquid to an ink jet head, and a member in contact with the reaction liquid in the ink jet head, and the reaction liquid is discharged from the ink jet head so as to adhere to the recording medium.
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公开(公告)号：US10737510B2
公开(公告)日：2020-08-11
申请号：US16357655
申请日：2019-03-19
发明人： Ippei Okuda , Mitsuaki Kosaka
摘要： A recording method is provided including: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition; and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered. The recording medium is heated before adhering the colored ink composition to the recording medium, a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, and a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C.
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公开(公告)号：US10723903B2
公开(公告)日：2020-07-28
申请号：US16140658
申请日：2018-09-25
发明人： Ippei Okuda , Yoshiko Azami
IPC分类号： C09D11/54 , C09D11/30 , C09D11/322 , C09D11/40
摘要： There is provided an ink set used by being attached to a recording medium together with a reaction liquid which reacts with and aggregates components of an ink composition, the ink set including a first ink composition which includes a coloring material, a fixing resin, and a resin-dissolving solvent, and a second ink composition which includes a coloring material, a fixing resin, and a resin-dissolving solvent and which is the same color ink as the first ink composition.
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公开(公告)号：US10603927B2
公开(公告)日：2020-03-31
申请号：US16117399
申请日：2018-08-30
发明人： Ippei Okuda , Tsuyoshi Sano
摘要： An ink jet recording method is provided for recording white and non-white ink compositions onto a moving recording medium. The recording medium includes a first region where both the white and non-white ink compositions are adhered, and a second region where only the white ink composition is adhered. Further, one or both of Conditions (i) and (ii) is satisfied. Condition (i): The amount of the white ink composition adhered in the first region is less than the amount of the white ink composition adhered in the second region. Condition (ii): The number of times the white ink composition is scanned across the first region is less than the number of times the white ink composition is scanned across in the second region.
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公开(公告)号：US10308055B2
公开(公告)日：2019-06-04
申请号：US14858309
申请日：2015-09-18
发明人： Ippei Okuda
IPC分类号： B41M5/00 , C09D11/322 , C09D11/54 , B41J2/21 , B41M5/50
摘要： Disclosed is a recording method including attaching a reaction solution which forms a recording region S1 by attaching a reaction solution which includes an aggregating agent which is able to aggregate components of a color ink composition to a target recording medium with an attachment amount of 100 nmol/inch2 to 1500 nmol/inch2 of the aggregating agent, and attaching a color ink composition which forms a recording region S2 by attaching the color ink composition which includes a coloring material and a resin to the recording region S1 within 30 seconds of attaching the reaction solution.
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