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1. 发明申请

US20210389687A1 TONER FOR DEVELOPMENT OF ELECTROSTATIC IMAGES 有权
公开(公告)号：US20210389687A1
公开(公告)日：2021-12-16
申请号：US17291138
申请日：2019-11-20
申请人： KAO CORPORATION
发明人： Yuka AMAHA , Yuki WAKABAYASHI , Shogo WATANABE
IPC分类号： G03G9/087 , C08L51/08 , C08F283/02 , G03G15/08
摘要： The invention relates to a toner for development of electrostatic images excellent in fusing property on polypropylene films and excellent in rubfastness of printed images, and a resin composition for a toner for development of electrostatic images. The toner for development of electrostatic images and the resin composition for a toner for development of electrostatic images each contain an amorphous polyester-based resin A and a crystalline polyester-based resin C, wherein the amorphous polyester-based resin A has a constituent moiety derived from a polyester resin, and a constituent moiety derived from a reactive functional group-having modified polyolefin-based polymer A, the polyester resin-derived constituent moiety and the modified polyolefin-based polymer A-derived constituent moiety being bonded via a covalent bond, and the amount of the modified polyolefin-based polymer A-derived constituent moiety is 5% by mass or more and 30% by mass or less relative to the total amount of the resin component in the toner.

2. 发明申请

US20210173318A1 LIQUID DEVELOPER 有权
公开(公告)号：US20210173318A1
公开(公告)日：2021-06-10
申请号：US16770758
申请日：2018-12-26
申请人： KAO CORPORATION
发明人： Taiki YAMAMOTO , Yuki WAKABAYASHI
IPC分类号： G03G9/13 , G03G9/12 , G03G9/125
摘要： The present invention relates to a liquid developer containing toner particles containing a colorant and a binder resin containing a polyester resin; and an insulating liquid, wherein the polyester resin includes a constituent unit derived from an alcohol component and a constituent unit derived from a carboxylic acid component, and the toner particles contain an acid-modified product A of a polymer of an α-olefin having 3 or more and 18 or less carbon atoms.

3. 发明申请

US20210141317A1 BINDER RESIN COMPOSITION FOR TONERS 有权
公开(公告)号：US20210141317A1
公开(公告)日：2021-05-13
申请号：US16625475
申请日：2018-06-22
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI , Taiki YAMAMOTO
IPC分类号： G03G9/087 , C08G81/02 , C08L67/02 , G03G15/20
摘要： The present invention relates to a binder resin composition capable of giving a toner remarkably excellent in fusing property on polypropylene films, and to a toner for developing electrostatic images that contains the binder resin composition. [1] A binder resin composition for toners, containing an amorphous polyester resin which has a polyester resin-derived constituent moiety that is a constituent moiety derived from a polyester resin and a modified polypropylene polymer A-derived constituent moiety that is a constituent moiety derived from a modified polypropylene polymer A having a carboxylic acid group or a carboxylic anhydride group and in which the polyester resin-derived constituent moiety and the modified polypropylene polymer A-derived constituent moiety bond to each other via a covalent bond, wherein the polymer A is a polypropylene polymer terminally-modified with an unsaturated bond-having carboxylic acid compound or an anhydride thereof, and in the polyester resin, the amount of the polymer A-derived constituent unit is 8 parts by mass or more and 30 parts by mass or less relative to 100 parts by mass of the total of the alcohol component and the carboxylic acid component constituting the polyester resin-derived constituent moiety; and [2] a toner for developing electrostatic images, containing the binder resin composition of [1].

4. 发明申请

US20150337149A1 INK-JET PRINTING METHOD 有权
标题翻译：墨水印刷方法
公开(公告)号：US20150337149A1
公开(公告)日：2015-11-26
申请号：US14653140
申请日：2013-12-10
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI , Kaname MITSUYOSHI , Hiroto SOMA
IPC分类号： C09D11/38 , C08K5/06 , B41J2/01
CPC分类号： C09D11/38 , C08K5/06 , C09D11/322
摘要： 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.
摘要翻译：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。

5. 发明申请

US20170037268A1 WATER-BASED INK FOR INKJET PRINTING 有权
标题翻译：喷墨打印机水性墨水
公开(公告)号：US20170037268A1
公开(公告)日：2017-02-09
申请号：US15106965
申请日：2014-12-18
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI , Hirotaka TAKENO , Daiki KAWATA
IPC分类号： C09D11/36 , B41J2/01 , C09D11/322
CPC分类号： C09D11/36 , B41J2/01 , C09D11/322 , C09D11/38
摘要： The present invention provides a water-based ink for ink-jet printing which is excellent in ejection stability and storage stability, in particular, excellent in quick-drying fixing properties and image uniformity when printing characters or images on a low-water absorbing recording medium, and an image forming method using the water-based ink. The present invention relates to [1] a water-based ink for ink-jet printing, including a pigment, a water-insoluble polymer, an organic solvent (C) and water, in which the organic solvent (C) includes diethylene glycol isopropyl ether (DEGPE) and an organic solvent (c2) having a 1-octanol/water partition coefficient that is smaller than that of DEGPE; a total content of the pigment, the water-insoluble polymer and DEGPE in the water-based ink is not less than 5.0% by mass; and a value obtained by multiplying a total content of the pigment and the water-insoluble polymer in the water-based ink by a content of DEGPE in the water-based ink is from 10 and 300; and [2] an image forming method including the steps of mounting a container filled with the water-based ink to an ink-jet printing apparatus equipped with an ink ejecting means; and ejecting the ink onto a recording medium having a water absorption of from 0 to 10 g/m2 as measured by contacting with pure water for 100 ms to print characters or images thereon.
摘要翻译：本发明提供一种喷墨印刷用水性油墨，其喷出稳定性和储存稳定性优异，特别是在低吸水性记录介质上打印字符或图像时，快干定影性和图像均匀性优异，以及使用该水性油墨的图像形成方法。本发明涉及[1]一种喷墨印刷用水性油墨，其包含颜料，水不溶性聚合物，有机溶剂（C）和水，其中有机溶剂（C）包括二甘醇异丙基醚（DEGPE）和具有小于DEGPE的1-辛醇/水分配系数的有机溶剂（c2）; 水性油墨中的颜料，水不溶性聚合物和DEGPE的总含量为5.0质量％以上。并且通过将水性油墨中的颜料和水不溶性聚合物的总含量乘以DEGPE在水性油墨中的含量而获得的值为10和300; 和[2]一种图像形成方法，包括以下步骤：将填充有水性油墨的容器安装到具有喷墨装置的喷墨打印设备中; 并通过与纯水接触100ms来测量吸水率为0至10g / m 2的记录介质上，从而在其上打印字符或图像。

6. 发明申请

US20230044074A1 BINDER RESIN FOR TONERS 有权
公开(公告)号：US20230044074A1
公开(公告)日：2023-02-09
申请号：US17788199
申请日：2020-12-25
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI
IPC分类号： G03G9/087 , G03G9/08
摘要： The present invention relates to a binder resin for toners which contains a composite resin that is formed by bonding a styrene-acrylic resin unit and a polyester-based resin unit to each other through a covalent bond, in which an acid value of a styrene-acrylic resin (A) constituting the styrene-acrylic resin unit is not less than 40 mgKOH/g.

7. 发明申请

US20180187034A1 WATER-BASED INK 审中-公开
公开(公告)号：US20180187034A1
公开(公告)日：2018-07-05
申请号：US15738487
申请日：2016-06-24
申请人： KAO CORPORATION
发明人： Hirotaka TAKENO , Yuki WAKABAYASHI , Kaname MITSUYOSHI , Takahiro YOSHIKAWA
IPC分类号： C09D11/40 , C09D11/322 , C09D11/037 , C09D11/102 , C09D11/033 , B41J2/21 , B41M5/00
CPC分类号： C09D11/40 , B41J2/01 , B41J2/015 , B41J2/2107 , B41M5/00 , B41M5/0023 , C09D11/033 , C09D11/037 , C09D11/102 , C09D11/30 , C09D11/322
摘要： The present invention relates to a water-based ink including a pigment, a water-insoluble polymer, an organic solvent and a surfactant, in which the organic solvent includes at least a glycol ether which has a viscosity of from 2.0 to 7.0 mPa·s and a vapor pressure from 0.01 to 7.0 hPa as measured at 20° C., and a content of a glycol ether having a viscosity of not less than 6.0 mPa·s as measured at 20° C. as a component of the glycol ether in the water-based ink is from 0 to 5% by mass; the surfactant includes a silicone-based surfactant and a content of the silicone-based surfactant in the water-based ink is from 0.005 to 0.3% by mass; a content of the organic solvent in the water-based ink is from 25 to 50% by mass; and a content of a high-boiling organic solvent in the water-based ink is not more than 5% by mass, an ink set for ink-jet printing including two or more kinds of water-based inks which are each constituted of the aforementioned water-based ink, and an ink-jet printing method including the steps of ejecting the aforementioned water-based ink onto a printing medium, and further ejecting the water-based ink onto the printing medium to overstrike the water-based ink onto the water-based ink that has been ejected onto the printing medium in the previous step. The water-based ink of the present invention is excellent in continuous ejection properties, and is capable of obtaining good printed materials that are free of roller transfer contamination and intercolor bleeding owing to overstriking of the inks even when printed on a non-water absorbing printing medium.

8. 发明申请

US20210033993A1 TONER PRODUCTION METHOD 有权
公开(公告)号：US20210033993A1
公开(公告)日：2021-02-04
申请号：US16967274
申请日：2019-02-08
申请人： KAO CORPORATION
发明人： Shoichi MURATA , Manabu SUZUKI , Yuki WAKABAYASHI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
摘要： A method for producing a toner, including aggregating and coalescing resin particles and colorant particles. The resin particles contain a composite resin containing a polyester resin segment, an addition polymer resin segment which is an addition polymerized product of a raw material monomer containing a styrenic compound, and a structural unit derived from a bireactive monomer bonding to the polyester resin segment and the addition polymer resin segment via a covalent bond. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing a styrenic compound. The addition polymer contains a structural unit derived from the styrenic compound in the main chain. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.

9. 发明申请

US20180179405A1 INKJET PRINTING METHOD AND WATER-BASED INK 审中-公开
公开(公告)号：US20180179405A1
公开(公告)日：2018-06-28
申请号：US15738766
申请日：2016-06-24
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI , Hirotaka TAKENO
IPC分类号： C09D11/322 , C09D11/037 , C09D11/033 , B41J2/21 , B41J11/00 , B41M7/00 , B41M5/00
摘要： The present invention relates to [1] an ink-jet printing method including a printing step of ejecting a water-based ink onto a surface of a printing medium to print characters or images thereon, in which the water-based ink includes a pigment (A), an organic solvent (B), a surfactant (C) and water; the organic solvent (B) includes at least a glycol ether (b-1), and the glycol ether has a viscosity of from 2.0 to 5.5 mPa·s as measured at 20° C. and a vapor pressure of from 0.03 to 6.0 hPa as measured at 20° C.; a content of a high-boiling organic solvent having a boiling point of not lower than 250° C. in the water-based ink is not more than 5% by mass; and a printing speed upon printing the characters or images on the printing medium is not less than 70 m/min in terms of a transportation speed of the printing medium, and [2] a water-based ink used in the inkjet printing method.

10. 发明申请

US20180171166A1 INKJET PRINTING METHOD AND WATER-BASED INK 审中-公开
公开(公告)号：US20180171166A1
公开(公告)日：2018-06-21
申请号：US15738480
申请日：2016-06-24
申请人： KAO CORPORATION
发明人： Yuki WAKABAYASHI , Hirotaka TAKENO
IPC分类号： C09D11/322 , C09D11/38 , B41J2/21 , B41M7/00 , B41J11/00
摘要： The present invention relates to [1] an ink-jet printing method including a printing step of ejecting a water-based ink onto a surface of a printing medium to print characters or images thereon, in which the water-based ink includes a pigment (A), a polypropylene glycol (B), an organic solvent (C), a surfactant (D) and water; the polypropylene glycol (B) includes a polypropylene glycol (b-1) having a polymerization degree of not less than 5 and not more than 30, and a content of the polypropylene glycol (b-1) in the water-based ink is not less than 0.5% by mass and not more than 2% by mass; the organic solvent (C) includes at least a glycol ether, and the glycol ether has a viscosity of not more than 7.5 mPa·s as measured at 20° C.; a content of a high-boiling organic solvent having a boiling point of not lower than 250° C. in the water-based ink is not more than 5% by mass; and an amount of droplets of the water-based ink ejected upon printing the characters or images onto the printing medium is not more than 5 pL, and a printing speed used upon the printing is not less than 70 m/min in terms of a transportation speed of the printing medium, and [2] a water-based ink used in the ink-jet printing method.

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