公开(公告)号：US20180134906A1

公开(公告)日：2018-05-17

申请号：US15564375

申请日：2016-03-31

Applicant: KAO CORPORATION

Inventor： Hiroto SOMA ,  Hiroshi MIZUHATA

IPC: C09D11/104 ,  C09D11/106 ,  C09D11/32 ,  B41M5/52 ,  B41J2/01

Abstract: The present invention provides a water-based ink that is excellent in adhesion to a resin printing medium formed of a resin such as polyethylene terephthalate, polyvinyl chloride, polyethylene, polypropylene, nylon, etc., gloss and anti-blocking properties upon storage of the printing medium after printing. The present invention relates to [1] a water-based ink including a colorant, polyester resin particles and modified polyolefin resin particles, in which the polyester resin particles are constituted of a resin containing an amorphous polyester having a glass transition temperature of not lower than 40° C. and not higher than 100° C., and a mass ratio of the polyester resin particles to the modified polyolefin resin particles (polyester resin particles/modified polyolefin resin particles) is not less than 10/90 and not more than 90/10, and [2] an ink-jet printing method including the steps of allowing the water-based ink according to the above [1] to adhere onto a resin printing medium by an ink-jet printing method; and then heating the resin printing medium onto which the water-based ink is adhered, to a temperature of not lower than 40° C. and not higher than 100° C.

公开(公告)号：US20200254805A1

公开(公告)日：2020-08-13

申请号：US16636515

申请日：2018-11-21

Applicant: KAO CORPORATION

Inventor： Norihiro FUKURI ,  Hiroto SOMA ,  Christopher JOHNSON

IPC: B41M5/52 ,  C08L67/02

Abstract: A resin dispersion for dye receiving layer of a thermal transfer image-receiving sheet, including a polyester resin particle and an aqueous medium. The polyester resin particle includes a polyester resin that is a polycondensate of an alcohol component including at least one of a propylene oxide adduct of 2,2-bis(4-hydroxyphenyl)propane and an ethylene oxide adduct of 2,2-bis(4-hydroxyphenyl)propane, and a carboxylic acid component including an aliphatic dicarboxylic acid compound having a carbon number of 6 or more and 10 or less. A molar ratio of the propylene oxide adduct of 2,2-bis(4-hydroxyphenyl)propane to the ethylene oxide adduct of 2,2-bis(4-hydroxyphenyl)propane in the alcohol component is 0/100 or more and 40/60 or less. A molar ratio of the ethylene oxide adduct of 2,2-bis(4-hydroxyphenyl)propane to the aliphatic dicarboxylic acid compound having a carbon number of 6 or more and 10 or less is 2.1 or more and 15 or less.

公开(公告)号：US20240174875A1

公开(公告)日：2024-05-30

申请号：US18551074

申请日：2022-03-18

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Shimpei KOBAYASHI ,  Hiroto SOMA ,  Shu NAGASHIMA ,  Yuki OZAKI

IPC: C09D11/326 ,  C09D17/00

CPC classification number: C09D11/326 ,  C09D17/001

Abstract: A pigment water dispersion, including pigment-containing polyester resin particles. The polyester resin contains a constitutional unit derived from an alcohol component and a constitutional unit derived from a carboxylic acid component, the alcohol component contains 3-methyl-1,5-pentanediol, and an average particle size of the pigment-containing resin particles is not less than 60 nm and not more than 350 nm.

公开(公告)号：US20230407118A1

公开(公告)日：2023-12-21

申请号：US18254061

申请日：2021-11-25

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Hiroto SOMA ,  Shu NAGASHIMA

IPC: C09D11/322 ,  C09D7/40 ,  C09D167/02 ,  C09D7/65

CPC classification number: C09D11/322 ,  C09D7/67 ,  C09D7/68 ,  C09D167/025 ,  C09D7/65

Abstract: A pigment water dispersion including pigment-containing polyester resin particles. An alcohol component as a raw material monomer of the polyester resin satisfies the following conditions 1 and 2. Condition 1: a content of a compound (I) represented by the following formula (I) in the alcohol component is not more than 7 mol %,




wherein OR1 and R2O are each independently an oxyalkylene group comprising not less than 1 and not more than 4 carbon atoms, and x and y are each independently a positive number of not less than 0. Condition 2: a content of a compound (II) comprising two secondary hydroxy groups except for the compound (I) in the alcohol component is not less than 45 mol %.

公开(公告)号：US20150337149A1

公开(公告)日：2015-11-26

申请号：US14653140

申请日：2013-12-10

Applicant: KAO CORPORATION

Inventor： Yuki WAKABAYASHI ,  Kaname MITSUYOSHI ,  Hiroto SOMA

IPC: C09D11/38 ,  C08K5/06 ,  B41J2/01

CPC classification number: C09D11/38 ,  C08K5/06 ,  C09D11/322

Abstract: The present invention relates to [1] a pigment-containing water-based ink for ink-jet printing which is free of turbidity and excellent in capability of suppressing occurrence of image unevenness (MOTTLING) when printed on a low-water absorbing recording medium, said ink including at least one acetylene glycol (A) selected from the group consisting of 2,4,7,9-tetramethyl-5-decyne-4,7-diol and the like, and a nonionic surfactant (B), a content of the component (A) in the water-based ink being not less than 1.0% by mass and not more than 3.0% by mass, and a mass ratio of the component (B) to the component (A) [(B)/(A)] being not less than 1 and not more than 3; and [2] an ink-jet printing method for printing images or characters on a low-water absorbing recording medium using said water-based ink for ink-jet printing.

Abstract translation: 本发明涉及[1]一种用于喷墨打印的含颜料的水性油墨，其在打印在低吸水性记录介质上时不含浊度和抑制图像不均匀（MOTTLING）发生的能力优异， 所述油墨包括至少一种选自2,4,7,9-四甲基-5-癸炔-4,7-二醇等的乙炔二醇（A）和非离子表面活性剂（B），含量 的水分油墨中的成分（A）的质量比为1.0质量％以上且3.0质量％以下，成分（B）与成分（A）[（B）/ （A）]不小于1且不大于3; 和[2]一种喷墨打印方法，用于使用所述用于喷墨打印的水性油墨在低吸水记录介质上打印图像或字符。