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：US20200325350A1

公开(公告)日：2020-10-15

申请号：US16956684

申请日：2018-12-21

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Hirotaka TAKENO ,  Takayuki SUZUKI

IPC: C09D11/107 ,  C09D11/037 ,  C09D11/033 ,  B41M1/10

Abstract: The present invention relates to a resin particle dispersion containing core/shell-type resin particles (A), a glycol ether (B) and water, in which a core portion resin of the core/shell-type resin particles (A) contains a constitutional unit derived from a (meth)acrylic acid ester containing a hydrocarbon group having 2 to 18 carbon atoms in an amount of not less than 40% by mass on the basis of constitutional units constituting the core portion resin, and an acid value of the core/shell-type resin particles (A) is 50 to 100 mgKOH/g; and in which a hydrocarbon group in an ether moiety of the glycol ether (B) has 2 to 8 carbon atoms, and a content of the glycol ether (B) in the resin particle dispersion is not less than 2.8% by mass. The resin particle dispersion according to the present invention can be used as an aqueous ink that is excellent in storage stability and substrate-adhesion properties.

公开(公告)号：US20180311968A1

公开(公告)日：2018-11-01

申请号：US15765969

申请日：2016-09-30

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Kazuki WATANABE ,  Masayuki NARITA

IPC: B41J2/18 ,  B41M5/00 ,  C01G23/047 ,  C09C1/36 ,  C09D11/322

Abstract: The present invention relates to an ink-jet printing method using a water-based ink containing a rutile-type titanium oxide and a polymer dispersant, in which the polymer dispersant contains a constitutional unit derived from an anionic group-containing monomer selected from the group consisting of acrylic acid, methacrylic acid and the like in an amount of not less than 72% by mass; Mw of the polymer dispersant is from 3,000 to 50,000; and a content of the polymer dispersant in the water-based ink is from 1 to 7% by mass on the basis of the titanium oxide, said method including the step 1 of redispersing the water-based ink by a dispersing means and the step 2 of printing characters or images on a printing medium using the redispersed water-based ink. According to the ink-jet printing method of the present invention, even though the titanium oxide is precipitated, it is possible to readily redisperse the titanium oxide in the water-based ink by simple stirring operations, and further by using the water-based ink whose properties can be rapidly restored owing to excellent foam suppressing properties and defoaming properties thereof, it is possible to attain good ejection properties of the ink.

公开(公告)号：US20160090483A1

公开(公告)日：2016-03-31

申请号：US14891180

申请日：2014-05-14

Applicant: KAO CORPORATION

Inventor： Hironobu FUKUROI ,  Takahiro SATO ,  Isao TSURU ,  Yusuke SHIMIZU ,  Yasufumi UEDA

IPC: C09B67/00 ,  C09D11/322 ,  C09B67/20

CPC classification number: C09B67/0022 ,  C09B67/006 ,  C09B67/0086 ,  C09B67/0089 ,  C09B67/009 ,  C09D11/00 ,  C09D11/322 ,  C09D17/003

Abstract: The present invention provides the following process for producing a fine organic pigment which is capable of producing the fine organic pigment that has a very small primary particle size and is excellent in filtering property even in a cleaning step, and a fine organic pigment produced by the process; a process for producing a dispersion using the fine organic pigment, and a dispersion produced by the process; and a process for producing an ink using the dispersion. The present invention relates to [1] a process for producing a fine organic pigment, including steps 1 and 2: step 1: kneading a mixture prepared by compounding a raw material organic pigment, a water-soluble inorganic salt, a water-soluble organic solvent and a compound represented by the following formula (1) with each other, the compound being compounded in an amount of not less than 0.8 part by mass and not more than 18.0 parts by mass on the basis of 100 parts by mass of the raw material organic pigment: R1O(PO)m(EO)nA (1); and step 2: subjecting the mixture obtained in the step 1 to cleaning treatment with an aqueous solvent and then to filtration, [2] a fine organic pigment produced by the process according to the above aspect [1], [3] a dispersion produced using the fine organic pigment according to the above aspect [2], [4] a process for producing a paste of a fine organic pigment, including the above step 1 and 2, [5] a process for producing a dispersion, including step 3 of subjecting the paste of the fine organic pigment produced by the process according to the above aspect [4], an organic solvent and water to dispersing treatment, and [6] a process for producing an ink, including step 4 of mixing the dispersion produced by the process according to the above aspect [5] with at least one material selected from the group consisting of water and an organic solvent.

Abstract translation: 本发明提供以下制造能够生产具有非常小的一次粒径的微细有机颜料并且即使在清洁步骤中也具有优异的过滤性能的有机颜料的方法，以及由 处理; 使用该有机颜料的分散体的制造方法和通过该工序制造的分散体; 以及使用该分散体生产油墨的方法。 本发明涉及[1]一种精细有机颜料的制造方法，其包括步骤1和2：步骤1：将通过混合原料有机颜料，水溶性无机盐，水溶性有机颜料， 溶剂和由下式（1）表示的化合物彼此混合，所述化合物的配合量为基于100质量份的原料不少于0.8质量份且不超过18.0质量份 材料有机颜料：R1O（PO）m（EO）nA（1）; 和步骤2：将在步骤1中获得的混合物用水溶剂进行清洗处理，然后过滤，[2]通过根据上述方面[1]，[3]的方法制备的精细有机颜料，产生分散体 使用根据上述方面[2]的细有机颜料，[4]一种制备包含上述步骤1和2的有机有机颜料的糊料的方法，[5]一种分散体的制备方法，包括步骤3 将通过上述方面[4]的方法生产的精细有机颜料的糊料，有机溶剂和水进行分散处理，[6]一种制备油墨的方法，包括步骤4，将生成的分散体 通过根据上述方面[5]的方法与至少一种选自水和有机溶剂的材料。

公开(公告)号：US20220403191A1

公开(公告)日：2022-12-22

申请号：US17779405

申请日：2020-11-16

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Hirotaka TAKENO

IPC: C09D11/322 ,  C08F220/56 ,  C08F220/18

Abstract: A resin particle dispersion containing core/shell-type resin particles and water is described. A shell portion resin of the core/shell-type resin particles contains a constitutional unit derived from a (meth)acrylic acid ester containing a hydrocarbon group having from 4 to 8 carbon atoms. A core portion resin of the core/shell-type resin particles contains a constitutional unit derived from a (meth)acrylamide-based monomer whose solubility parameter lies within the range of from 17.0 to 21.0 (J/cm3)0.5 in an amount of not less than 5% by mass, and a glass transition temperature of the core portion resin is not higher than 50° C. An acid value of the core/shell-type resin particles is from 50 to 100 mgKOH/g. A process for producing the resin particle dispersion and a printing method using the resin particle dispersion is also described.

公开(公告)号：US20190264043A1

公开(公告)日：2019-08-29

申请号：US16349195

申请日：2017-11-13

Applicant: KAO CORPORATION

Inventor： Kazuki WATANABE ,  Ryuma MIZUSHIMA ,  Takahiro SATO ,  Yasufumi UEDA

IPC: C09D11/033 ,  C09D11/107

Abstract: The present invention relates to an aqueous gravure ink containing a pigment, a polymer, a water-soluble organic solvent, a surfactant and water, in which the water-soluble organic solvent contains a glycol ether having a boiling point of from 100 to 260° C., and a content of the glycol ether in the ink is from 1 to 10% by mass; a total content of the water-soluble organic solvent in the ink is not more than 15% by mass; the surfactant contains an acetylene glycol-based surfactant; and a content of water in the ink is from 50 to 70% by mass.

公开(公告)号：US20180009988A1

公开(公告)日：2018-01-11

申请号：US15539591

申请日：2015-12-22

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Yasufumi UEDA

IPC: C09B67/46 ,  C09D11/107 ,  C08J3/07 ,  B41J2/21 ,  C08J3/21 ,  C09D11/322 ,  C09D11/037

Abstract: The present invention relates to [1] a process for producing pigment-containing modified polymer particles, including the step of reacting pigment-containing polymer particles (A) containing a functional group and a compound (B) containing a reactive group capable of reacting with the functional group of the polymer particles (A) in a medium under such a condition that a ratio [(B)/(A)] of total moles of the reactive group of the compound (B) to total moles of the functional group of the polymer particles (A) is from 0.10 to 0.62; [2] a pigment water dispersion including an aqueous medium and the modified polymer particles produced by the aforementioned process which are dispersed in the aqueous medium; and [3] an ink including the aforementioned pigment water dispersion and an organic solvent. The modified polymer particles are free from formation of coarse particles upon production of pigment particles, so that an ink obtained by using the modified polymer particles can be prevented from suffering from increase in viscosity thereof when the ink is being concentrated by evaporation of water from the ink, and is excellent in rub fastness when printed on a low-water absorbing recording medium.

公开(公告)号：US20170362358A1

公开(公告)日：2017-12-21

申请号：US15539028

申请日：2015-12-15

Applicant: KAO CORPORATION

Inventor： Yuki OZAKI ,  Yasufumi UEDA ,  Takahiro SATO

IPC: C08F212/08 ,  C08F220/18 ,  C08G81/02 ,  C09D11/322

CPC classification number: C08F212/08 ,  C08F220/18 ,  C08F220/20 ,  C08F222/02 ,  C08G81/025 ,  C08J3/124 ,  C08J3/20 ,  C08J3/215 ,  C08J2333/08 ,  C08J2333/16 ,  C08L57/00 ,  C09B67/0022 ,  C09D11/322 ,  C09D133/064 ,  C09D135/02 ,  C08F2220/185 ,  C08F220/06 ,  C08F2220/286

Abstract: The present invention provides a process for producing a fine organic pigment which is capable of efficiently atomizing a raw material organic pigment, and excellent in productivity of the fine organic pigment. The present invention relates to a process for producing a fine organic pigment which includes the step of kneading a mixture prepared by compounding a raw material organic pigment, a water-soluble inorganic salt, a water-soluble organic solvent and a resin, in which the resin is a copolymer produced by copolymerizing an aromatic ring-containing ethylenically unsaturated monomer (A), a carboxy group-containing ethylenically unsaturated monomer (B) and an ethylenically unsaturated monomer (C) containing a polyethyleneoxide chain having an average molar number of addition of ethyleneoxide of not less than 1 and not more than 50.

公开(公告)号：US20160115332A1

公开(公告)日：2016-04-28

申请号：US14891156

申请日：2014-05-14

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Hirotaka TAKENO ,  Hironobu FUKUROI

IPC: C09D17/00 ,  C09B67/46

CPC classification number: C09D17/003 ,  C08K5/3437 ,  C09B67/0002 ,  C09B67/0022 ,  C09B67/009 ,  C09D11/00 ,  C09D11/322 ,  C09D17/00

Abstract: The present invention provides [1] a process for producing a fine organic pigment having a very small primary particle size, and a fine organic pigment produced by the process; a process for producing a dispersion using the fine organic pigment, and a dispersion produced by the process; and a process for producing an ink using the dispersion. The present invention relates to [1] a process for producing a fine organic pigment, including step 1 of kneading a mixture prepared by blending (A) a raw material organic pigment containing an oxygen atom and a nitrogen atom bonded to a hydrogen atom in a molecule thereof, (B) a water-soluble inorganic salt, (C) a water-soluble organic solvent, (D) water and (E) a water-soluble basic compound with each other, in which the water (D) is blended in an amount of not less than 0.6 part by mass and not more than 7.0 parts by mass on the basis of 100 parts by mass of the water-soluble inorganic salt, and the water-soluble basic compound (E) is blended in an amount of not less than 1.5 parts by mass and not more than 35 parts by mass on the basis of 100 parts by mass of the raw material organic pigment.

Abstract translation: 本发明提供[1]一种具有非常小的一次粒径的有机有机颜料的制备方法和通过该方法制备的有机有机颜料; 使用该有机颜料的分散体的制造方法和通过该工序制造的分散体; 以及使用该分散体生产油墨的方法。 本发明涉及[1]一种精细有机颜料的制造方法，其包括将通过将（A）含有氧原子的原料有机颜料和与氢原子键合的氮原子共混而制备的混合物 分子，（B）水溶性无机盐，（C）水溶性有机溶剂，（D）水和（E）水（D）相互混合的水溶性碱性化合物 相对于100质量份水溶性无机盐，其含量为0.6质量份以上且7.0质量份以下，水溶性碱性化合物（E）的配合量 基于100质量份的原料有机颜料，不小于1.5质量份且不大于35质量份。

公开(公告)号：US20160090484A1

公开(公告)日：2016-03-31

申请号：US14891192

申请日：2014-05-14

Applicant: KAO CORPORATION

Inventor： Takahiro SATO ,  Hironobu FUKUROI ,  Hirotaka TAKENO

IPC: C09B67/00 ,  C09B67/20 ,  C09D11/322

CPC classification number: C09B67/0022 ,  C09B67/0002 ,  C09B67/006 ,  C09B67/0066 ,  C09B67/009 ,  C09D11/00 ,  C09D11/322 ,  C09D17/00 ,  C09D17/003 ,  G03F7/0007

Abstract: The present invention provides a process for producing a fine organic pigment having a very small primary particle size, and a fine organic pigment produced by the process; a process for producing a dispersion using the fine organic pigment, and a dispersion produced by the process; and a process for producing an ink using the dispersion. The present invention relates to [1] a process for producing a fine organic pigment, including step 1 of kneading a mixture prepared by blending a raw material organic pigment, a water-soluble inorganic salt, a water-soluble organic solvent and water with each other, the water being blended in an amount of not less than 0.6 part by mass and not more than 4.0 parts by mass on the basis of 100 parts by mass of the water-soluble inorganic salt; [2] a fine organic pigment produced by the process described in the above [1]; [3] a dispersion produced using the fine organic pigment described in the above [2]; [4] a process for producing a paste of a fine organic pigment, including step 2 of cleaning the kneaded mixture obtained in the step 1; [5] a process for producing a dispersion, including step 3 of subjecting the paste of the fine organic pigment produced by the process described in the above [4], an organic solvent and water to dispersing treatment; and [6] a process for producing an ink, including step 4 of mixing the dispersion produced by the process described in the above [5], with at least one material selected from the group consisting of water and an organic solvent.

Abstract translation: 本发明提供一种具有非常小的一次粒径的有机有机颜料的制备方法和通过该方法制备的有机有机颜料; 使用该有机颜料的分散体的制造方法和通过该工序制造的分散体; 以及使用该分散体生产油墨的方法。 本发明涉及[1]一种精细有机颜料的制造方法，其包括将通过将原料有机颜料，水溶性无机盐，水溶性有机溶剂和水共混而制备的混合物与各自混合的步骤1 另外，基于100质量份的水溶性无机盐，水的配合量为0.6质量份以上且4.0质量份以下， [2]通过上述[1]所述的方法制造的精细有机颜料; [3]使用上述[2]所述的有机有机颜料制造的分散体。 [4]一种生产精细有机颜料糊料的方法，包括步骤2，清洗步骤1中获得的捏合混合物; [5]一种分散体的制造方法，其包括使上述[4]所述的方法制造的有机颜料的糊料，有机溶剂和水进行分散处理的工序3。 和[6]一种制备油墨的方法，包括将通过上述[5]所述方法制备的分散体与至少一种选自水和有机溶剂的材料混合的步骤4。