公开(公告)号：US20190300730A1

公开(公告)日：2019-10-03

申请号：US16065281

申请日：2016-12-22

Applicant: KAO CORPORATION

Inventor： Satoshi KUNII ,  Teruyuki FUKUDA ,  Satoshi TANAKA ,  Yuki SUZUKI

IPC: C09D11/322 ,  C08G59/22 ,  C08F265/06 ,  C08L63/00 ,  C09D11/102 ,  C08F212/08 ,  C08F220/18 ,  C08F220/06

Abstract: The present invention relates to [1] a pigment water dispersion containing pigment-containing crosslinked polymer particles, in which a crosslinked polymer in the particles is a polymer that is crosslinked with a crosslinking agent represented by the general formula (1), and [2] a process for producing a pigment water dispersion containing pigment-containing crosslinked polymer particles, including the following steps (1) and (2): Step (1): subjecting a pigment mixture containing a pigment, a water-dispersible polymer and water to dispersion treatment, thereby obtaining an aqueous pigment dispersion solution containing pigment-containing polymer particles; and Step (2): mixing the aqueous pigment dispersion solution obtained in the step (1) and a crosslinking agent represented by the general formula (1) to react the water-dispersible polymer with the crosslinking agent, thereby obtaining a pigment water dispersion containing pigment-containing crosslinked polymer particles.

公开(公告)号：US20160280942A1

公开(公告)日：2016-09-29

申请号：US15037241

申请日：2014-11-20

Applicant: KAO CORPORATION

Inventor： Teruyuki FUKUDA ,  Satoshi TANAKA ,  Takeshi ASHIZAWA ,  Daisuke HAMADA

IPC: C09D11/107 ,  C09D11/037 ,  C09D11/033 ,  C09D11/322

Abstract: The present invention relates to [1] a water-based pigment dispersion for ink-jet printing including pigment particles and water, in which a scattering intensity area ratio of components included in the range of from 0 to −60 mV in a normalized zeta potential distribution 4 that is determined through specific zeta potential measurement steps is not more than 40%, and the like, and [2] a process for producing the water-based pigment dispersion for ink-jet printing, including production step (1) of subjecting a mixture including water, a pigment, a water-dispersible polymer and an organic solvent having a solubility in water of less than 40% by mass to dispersing treatment until a volume-average particle size of the pigment particles is decreased to not more than 180 nm to obtain a pigment dispersion; production step (2) of adding water to the resulting pigment dispersion, followed by maintaining the resulting dispersion at a temperature of not higher than 40° C. for a period of from 4 h to 48 h; and production step (3) of removing the organic solvent from the pigment dispersion to obtain the water-based pigment dispersion. The water-based pigment dispersion for ink-jet printing according to the present invention is excellent in ejection durability and can be prevented from suffering from deterioration in optical density even when used for printing over a long period of time.

Abstract translation: 本发明涉及[1]一种用于喷墨印刷的水性颜料分散体，其包括颜料颗粒和水，其中包含在标准化ζ电位中0至-60mV范围内的组分的散射强度面积比 通过特定的ζ电位测定步骤确定的分布4不超过40％等，[2]一种喷墨印刷用水性颜料分散体的制造方法，包括制造工序（1） 包括水，颜料，水分散性聚合物和在水中的溶解度小于40质量％的有机溶剂的分散处理，直到颜料颗粒的体积平均粒径降至不大于180 nm以获得颜料分散体; 制备步骤（2），向所得颜料分散体中加入水，然后将所得分散体在不高于40℃的温度下保持4小时至48小时; 和从颜料分散体中除去有机溶剂的制备步骤（3），得到水性颜料分散体。 根据本发明的用于喷墨打印的水性颜料分散体具有优异的喷射耐久性，并且即使长时间用于印刷也可以防止光密度的劣化。

公开(公告)号：US20200216698A1

公开(公告)日：2020-07-09

申请号：US16640995

申请日：2017-08-24

Applicant: KAO CORPORATION

Inventor： Teruyuki FUKUDA ,  Satoshi KUNII ,  Satoshi TANAKA ,  Yuki SUZUKI

IPC: C09D11/38 ,  C09D11/324 ,  C09D11/107 ,  B41M5/00

Abstract: The present invention relates to a liquid composition for ink-jet printing which is capable of forming a protective film on a liquid ejection head of an ink-jet type to enhance insulating properties for the liquid ejection head, an image-forming method, a method of forming the protective film, a storing method, and a use of the liquid composition. The present invention provides [1] a liquid composition for ink-jet printing which contains not less than 0.01% by mass and not more than 1.50% by mass of a compound represented by the following formula (1) or a salt thereof, not less than 0.05% by mass and not more than 35% by mass of a compound represented by the following formula (2), and water, [2] an ink-jet image-forming method including the step of ejecting the liquid composition for ink-jet printing according to the above [1] from a liquid ejection head of an ink-jet type including an ejection energy-generating element to form characters or images, [3] a method of forming a protective film on a liquid ejection head of an ink-jet type including an ejection energy-generating element, including the step of applying a voltage to the ejection energy-generating element under such a condition that the ejection energy-generating element is allowed to contact with the liquid composition according to the above [1], [4] a method of storing a liquid ejection head of an ink-jet type including an ejection energy-generating element, including the steps of applying a voltage to the ejection energy-generating element under such a condition that the ejection energy-generating element is allowed to contact with the liquid composition according to the above [1], and filling the liquid ejection head with an ink after the step of applying a voltage, and [5] a use of the liquid composition according to the above [1], as a filling liquid or an ink; R1—O-(AO)j(CH2CH2O)n—B—COOH  (1), and R2—O-(AO)k(CH2CH2O)m—H  (2).

公开(公告)号：US20190309180A1

公开(公告)日：2019-10-10

申请号：US16061855

申请日：2016-12-16

Applicant: KAO CORPORATION

Inventor： Satoshi TANAKA ,  Takeshi ASHIZAWA ,  Teruyuki FUKUDA

IPC: C09D11/326 ,  C09D17/00 ,  C09D11/037 ,  C09D11/033 ,  C09D11/107 ,  B41M5/00

Abstract: The present invention relates to [1] a process for producing a pigment water dispersion, including step 1 of mixing a water dispersion (A) formed by dispersing a pigment (I) with a water-dispersible polymer and a water dispersion (B) of a self-dispersible pigment (II) to obtain a water dispersion (C); and step 2 of subjecting the water dispersion (C) obtained in the step 1 to heat treatment at a temperature of not lower than 40° C. to obtain the pigment water dispersion, and [2] a pigment water dispersion containing a pigment (I) dispersed with a water-dispersible polymer and a self-dispersible pigment (II), in which the water-dispersible polymer is adsorbed onto the pigment (I) and the self-dispersible pigment (II).

公开(公告)号：US20160297981A1

公开(公告)日：2016-10-13

申请号：US14392279

申请日：2014-06-24

Applicant: KAO CORPORATION

Inventor： Takeshi ASHIZAWA ,  Teruyuki FUKUDA ,  Satoshi TANAKA

IPC: C09D11/38 ,  B41J2/04 ,  C09D11/322 ,  C09D11/033 ,  C09D11/107

CPC classification number: C09D11/38 ,  B41J2/04 ,  C09D11/033 ,  C09D11/107 ,  C09D11/322

Abstract: The present invention relates to a process for producing a water-based ink for ink-jet printing, including the step of dispersing a pigment in a polymer by means of a disperser using dispersing media particles containing a zirconium compound to introduce the solid zirconium compound into the water-based ink, the water-based ink including the pigment-containing polymer particles and the solid zirconium compound, and having a zirconium compound content of not less than 2 ppm and not more than 200 ppm in terms of a concentration of zirconium in the water-based ink.

Abstract translation: 本发明涉及一种喷墨印刷用水性油墨的制造方法，其特征在于，包括使用含有锆化合物的分散介质粒子，通过分散机将颜料分散在聚合物中的步骤，将固体锆化合物引入 水性油墨，包含含颜料的聚合物颗粒和固体锆化合物的水性油墨，并且锆化合物含量以锆的浓度计不小于2ppm且不大于200ppm 水性油墨。

公开(公告)号：US20160053123A1

公开(公告)日：2016-02-25

申请号：US14779047

申请日：2014-04-07

Applicant: KAO CORPORATION

Inventor： Satoshi TANAKA ,  Teruyuki FUKUDA

IPC: C09D11/30 ,  C09D133/08 ,  B41J2/01

CPC classification number: C09D11/30 ,  B41J2/01 ,  B41J2/2107 ,  C09D11/00 ,  C09D11/107 ,  C09D11/326 ,  C09D17/00 ,  C09D133/08

Abstract: The present invention relates to a thermal ink-jet printing method including the step of ejecting a water-based ink including pigment-containing polymer particles from a print head by an action of a thermal energy, in which the polymer constituting the polymer particles includes not less than 78% by mass and not more than 88% by mass of a constitutional unit derived from an acrylic acid ester containing a hydrocarbon group having not less than 3 and not more than 8 carbon atoms, and not more than 22% by mass and not less than 12% by mass of a constitutional unit derived from acrylic acid, on the basis of a total mass of whole constitutional units in the polymer constituting the polymer particles; [2] a water dispersion for thermal ink-jet printing used in the above method; [3] a water-based ink for thermal ink-jet printing including the above water dispersion; and [4] a use of the above ink in a thermal ink-jet printing method.

Abstract translation: 本发明涉及一种热喷墨打印方法，其包括以下步骤：通过热能的作用从打印头喷射包含含颜料的聚合物颗粒的水性油墨，其中构成聚合物颗粒的聚合物不包括 小于78质量％且不大于88质量％的由含有不少于3个且不多于8个碳原子的烃基的丙烯酸酯衍生的结构单元，并且不大于22质量％ 基于构成聚合物颗粒的聚合物中的整个结构单元的总质量，不少于12质量％的衍生自丙烯酸的结构单元; [2]用于上述方法的热喷墨印刷用水分散体; [3]一种用于热喷墨印刷的水性油墨，包括上述水分散体; 和[4]在热喷墨打印方法中使用上述油墨。

公开(公告)号：US20190390074A1

公开(公告)日：2019-12-26

申请号：US16084122

申请日：2017-03-14

Applicant: KAO CORPORATION

Inventor： Satoshi KUNII ,  Teruyuki FUKUDA ,  Satoshi TANAKA ,  Yuki SUZUKI

IPC: C09D11/322 ,  C08F212/08 ,  C08F220/06 ,  C08F220/30 ,  C09D11/102 ,  C08J3/24 ,  C08G59/22 ,  C08L63/00

Abstract: The present invention relates to [1] a pigment water dispersion containing pigment-containing crosslinked polymer particles, in which a crosslinked polymer in the particles is a polymer that is crosslinked with a compound represented by the general formula (1), and the pigment is a carbon black, and [2] a process for producing a pigment water dispersion containing pigment-containing crosslinked polymer particles, including the following steps: Step (1): subjecting a pigment mixture containing a water-dispersible polymer, a pigment and water to dispersion treatment, thereby obtaining an aqueous pigment dispersion solution containing pigment-containing polymer particles; and Step (2): mixing the aqueous pigment dispersion solution obtained in the step (1) and a compound represented by the general formula (1) to react the water-dispersible polymer with the compound to prepare a crosslinked polymer, thereby obtaining the pigment water dispersion containing pigment-containing crosslinked polymer particles.

公开(公告)号：US20190338152A1

公开(公告)日：2019-11-07

申请号：US16473897

申请日：2017-12-27

Applicant: KAO CORPORATION

Inventor： Yuki SUZUKI ,  Teruyuki FUKUDA ,  Satoshi KUNII ,  Satoshi TANAKA

IPC: C09D11/326 ,  C09D17/00 ,  C09D11/38 ,  C09D11/037 ,  C09D11/033 ,  C09D11/107 ,  B41M5/00

Abstract: The present invention provides a pigment water dispersion that is excellent in dispersion stability, and also excellent in ejection properties even when used as an ink for ink-jet printing. The present invention relates to [1] a pigment water dispersion containing (A) a pigment, (B) a carboxy group-containing crosslinked polymer and (C) an alkyl group-containing ethanolamine having a pKa of not less than 8.7, [2] a water-based ink containing the pigment water dispersion, an organic solvent and a surfactant, and [3] a process for producing a pigment water dispersion, including step (I) of subjecting a mixture containing the pigment (A), a crosslinkable polymer, the aforementioned ethanolamine (C), an organic solvent and water to dispersion treatment, thereby obtaining a dispersion of pigment-containing polymer particles containing the pigment (A) and the crosslinkable polymer that is adhered onto the pigment (A); step (II) of removing the organic solvent from the obtained dispersion, thereby obtaining a water dispersion of the pigment-containing polymer particles; and step (III) of further subjecting the polymer to crosslinking reaction with a crosslinking agent, thereby obtaining the pigment water dispersion containing pigment-containing crosslinked polymer (B) particles.