公开(公告)号：US20230312964A1

公开(公告)日：2023-10-05

申请号：US18043832

申请日：2020-10-21

Applicant: KAO CORPORATION

Inventor： Yuta MATSUMOTO ,  Todd TRITCAK

IPC: C09D11/36 ,  C09D11/32 ,  B41M5/00

CPC classification number: C09D11/36 ,  C09D11/32 ,  B41M5/0047

Abstract: An inkjet ink that includes (A) a terpene resin, (B) a solvent system that includes (B1) methyl ethyl ketone, and (C) a polyether modified silicone having a hydrophilic-lipophilic balance (HLB) value of 1 to 12, which is characterized by extended decap times, quick drying properties, and providing high image sharpness. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.

公开(公告)号：US20210071022A1

公开(公告)日：2021-03-11

申请号：US16956102

申请日：2018-12-12

Applicant: KAO CORPORATION

Inventor： Azusa KURODA ,  Yuta MATSUMOTO

IPC: C09D11/326 ,  C09D11/38 ,  C09D11/107 ,  C08K5/00 ,  C08K5/053 ,  C08K5/103 ,  C08K5/5415 ,  C08K5/1515 ,  C08K9/10 ,  C08F220/06 ,  C08F220/28 ,  C08F212/08 ,  B41J2/21 ,  B41M5/00

Abstract: The present invention relates to a water-based ink containing a pigment (A), a water-soluble organic solvent (C), a surfactant (D) and water, in which a content of water in the water-based ink is not less than 40% by mass and not more than 65% by mass, a boiling point of the water-soluble organic solvent (C) is not higher than 230° C., and a content of a high-boiling point organic solvent having a boiling point of not lower than 250° C. in the water-based ink is not more than 4% by mass, and the surfactant (D) contains a silicone-based surfactant (d-1) and an acetylene glycol-based surfactant (d-2) which satisfy the following conditions 1 and 2: Condition 1: [(content of component (d-1))/(content of component (C))]×100=0.15 to 4; and Condition 2: [(content of component (d-2))/(content of component (C))]×100=0.35 to 1.65. In accordance with the present invention, it is possible to form ink dots having a complete circular shape and produce a printed material that is excellent in solid image fillability, image quality and rub fastness even when printed on a low-liquid absorbing printing medium.

公开(公告)号：US20190047299A1

公开(公告)日：2019-02-14

申请号：US16077298

申请日：2017-02-02

Applicant: KAO CORPORATION ,  THINK LABORATORY CO., LTD.

Inventor： Yuta MATSUMOTO ,  Ryuma MIZUSHIMA ,  Takahiro SATO ,  Kazuki WATANABE ,  Yasufumi UEDA ,  Tatsuo SHIGETA

IPC: B41J11/00 ,  B41M5/00 ,  B41J2/21

Abstract: The present invention relates to an ink-jet printing method that is capable of obtaining good printed materials that are free of occurrence of color migration and deformation of a printing medium even when printed on a resin printing medium. The present invention provides an ink-jet printing method using a water-based ink containing a black ink, a chromatic ink and a white ink which each contain a pigment (A), an organic solvent (C) having a boiling point of not lower than 90° C. and lower than 250° C., and water, said method including step 1 of ejecting at least one water-based ink selected from the group consisting of the black ink and the chromatic ink onto a transparent resin printing medium to print an image 1 on the printing medium; step 2 of ejecting the white ink onto the resulting image 1 to print a white image that covers the image 1 on the printing medium; and step 3 of heating and drying the resulting printed material from a side of a surface of the printing medium on which the white image is formed, using an infrared heater.

公开(公告)号：US20190030918A1

公开(公告)日：2019-01-31

申请号：US16077131

申请日：2017-02-02

Applicant: KAO CORPORATION ,  THINK LABORATORY CO., LTD.

Inventor： Yuta MATSUMOTO ,  Yasufumi UEDA ,  Tatsuo SHIGETA

IPC: B41J11/00 ,  B41J15/16

Abstract: The present invention relates to an ink-jet printing apparatus that is capable of obtaining printed materials having good appearance while maintaining high quality of printed characters or images even when printed on a resin printing medium using a water-based ink, and an ink-jet printing method. The present invention provides an ink-jet printing apparatus in which when setting a plurality of measuring positions of a printing medium including a position of the printing medium at which the printing medium is wound into a web roll in a web roll heating/supporting mechanism and positions of the printing medium which are respectively located just below a plurality of ink-jet printing heads, a plurality of temperature measuring devices measure temperatures of a surface of the printing medium at the plurality of measuring positions, respectively, and a heating amount control device controls a heating amount of the web roll heating/supporting mechanism and heating amounts of under heaters on the basis of the plural measured temperatures such that a difference between the temperatures measured in a portion of the printing medium to which a tension force is applied falls within the range of 10° C., and an ink-jet printing method using the ink-jet printing apparatus.

公开(公告)号：US20180244093A1

公开(公告)日：2018-08-30

申请号：US15756364

申请日：2016-08-03

Applicant: THINK LABORATORY CO., LTD. ,  KAO CORPORATION

Inventor： Tatsuo SHIGETA ,  Ryuma MIZUSHIMA ,  Yuta MATSUMOTO ,  Yasufumi UEDA

IPC: B41M1/10 ,  B41F3/36 ,  B41F9/06 ,  C09D11/023

CPC classification number: B41M1/10 ,  B41F3/36 ,  B41F9/00 ,  B41F9/061 ,  B41F13/11 ,  B41N1/06 ,  C09D11/023

Abstract: Provided is a gravure printing method by which high printing density and excellent highlight suitability are obtained, even if a gravure plate having high resolution and reduced thickness is used. The gravure printing method comprises: using an aqueous ink having a Zahn cup #3 viscosity at 20° C. of 11.0 seconds or more and 20.0 seconds or less, and having an evaporation rate of 30 mass % or less in a drying test, the drying test involving drying 1 g of the ink at a temperature of 40° C. and an air flow of 1,400 L/min for 30 minutes; and transferring 1 ml/m2 or more and 7 ml/m2 or less of the ink onto a printing medium.

公开(公告)号：US20230312952A1

公开(公告)日：2023-10-05

申请号：US18245756

申请日：2020-10-21

Applicant: KAO CORPORATION

Inventor： Yuta MATSUMOTO ,  Daniel SANDKER

IPC: C09D11/102 ,  C09D11/328 ,  C09D11/38 ,  C09D11/36 ,  C09D11/107 ,  B41M5/50 ,  B41J11/00

CPC classification number: C09D11/102 ,  C09D11/328 ,  C09D11/38 ,  C09D11/36 ,  C09D11/107 ,  B41M5/50 ,  B41J11/002

Abstract: An inkjet ink that includes (A) a terpene phenol resin having a hydroxyl value of 10 to 80 mgKOH/g and (B) a carbonate ester whose boiling point is less than 150° C. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.

公开(公告)号：US20190134989A1

公开(公告)日：2019-05-09

申请号：US16310771

申请日：2017-06-16

Applicant: KAO CORPORATION

Inventor： Yuta MATSUMOTO ,  Kazuki WATANABE ,  Azusa KURODA

IPC: B41J2/21 ,  C09D11/322 ,  C09D11/38 ,  C09D11/40 ,  C09D11/033

Abstract: The present invention relates to an ink-jet printing method that is capable of obtaining good printed characters or images which are free of occurrence of white lines or streaks irrespective of irradiation with an active energy ray. The present invention provides an ink-jet printing method including the steps of ejecting at least one ink A selected from the group consisting of a black ink and chromatic inks onto a low-liquid absorbing printing medium and then ejecting a white ink thereonto, in which the ink A contains at least one pigment selected from the group consisting of a black pigment and chromatic pigments, and a polymer dispersant containing a constitutional unit derived from a polyalkylene glycol (meth)acrylate; and the white ink contains titanium oxide and a polymer dispersant containing a constitutional unit derived from a polyalkylene glycol (meth)acrylate.

公开(公告)号：US20240076513A1

公开(公告)日：2024-03-07

申请号：US18260287

申请日：2021-04-22

Applicant: KAO CORPORATION

Inventor： Yuta MATSUMOTO ,  Todd TRITCAK

IPC: C09D11/36 ,  B41J11/00 ,  B41M5/50 ,  C09D11/033 ,  C09D11/108

CPC classification number: C09D11/36 ,  B41J11/002 ,  B41M5/50 ,  C09D11/033 ,  C09D11/108

Abstract: An inkjet ink that includes (A1) a terpene resin, and (B) a solvent system containing (B1) a ketone solvent having a boiling point of less than 120° C. and (B2) dioxolane, the inkjet ink being characterized by extended decap times and long throw distance. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.

公开(公告)号：US20240018375A1

公开(公告)日：2024-01-18

申请号：US18254955

申请日：2021-03-31

Applicant: KAO CORPORATION

Inventor： Yuta MATSUMOTO ,  Tomohide YOSHIDA

IPC: C09D11/36 ,  C09D11/38 ,  C09D11/104 ,  C09D11/102 ,  B41M5/50 ,  B41J11/00

CPC classification number: C09D11/36 ,  C09D11/38 ,  C09D11/104 ,  C09D11/102 ,  B41M5/502 ,  B41J11/0021

Abstract: An inkjet ink, including (A) a resin, which is (A1) a terpene resin or (A2) a terpene phenol resin, (B) a solvent system including (B1) a volatile organic solvent having a boiling point of less than 100° C., and (C) silver nanoparticles. A printed article, including a substrate, and an opaque film disposed on the substrate. The opaque film is formed from the inkjet ink.

公开(公告)号：US20230050122A1

公开(公告)日：2023-02-16

申请号：US17787486

申请日：2019-12-20

Applicant: Yuta MATSUMOTO ,  Kao Corporation

Inventor： Yuta MATSUMOTO ,  Todd TRITCAK

IPC: C09D11/108

Abstract: An inkjet ink that includes (A) a terpene resin made from α-pinene and (B) methyl ethyl ketone, which is characterized by extended decap times as well as quick drying properties when applied onto a substrate. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.