公开(公告)号：JP2007197658A

公开(公告)日：2007-08-09

申请号：JP2006188981

申请日：2006-07-10

Applicant: Kao Corp ,  花王株式会社

Inventor： NAGASHIMA SHIGEKI ,  SAKAKIBARA MAKOTO ,  IWASAKI TOSHIYA

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322

CPC classification number: C09B67/009 ,  C09B67/0002 ,  C09D11/322

Abstract: PROBLEM TO BE SOLVED: To provide an aqueous dispersion for inkjet recording having excellent ejection reliability, image density, image uniformity and rubbing resistance and provide a water-based ink containing the dispersion and a method for producing the dispersion.
SOLUTION: The invention provides (1) an aqueous dispersion for inkjet recording containing an organic pigment having a bulk of 3.5-20 mL/g; (2) an aqueous dispersion for inkjet recording containing water-insoluble polymer particles containing a pigment having a bulk of 3.5-20 mL/g; (3) an aqueous dispersion for inkjet recording containing an organic pigment obtained by a pulverization/classification treatment wherein the organic pigment has D50 of 2-15 μm and D90 of ≤60 μm; (4) a water-based ink for inkjet recording containing the aqueous dispersion; and (5) a method for producing the aqueous dispersion.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决问题：提供喷射可靠性，图像密度，图像均匀性和耐摩擦性优异的喷墨记录用水性分散体，并提供含有该分散体的水性油墨及其制造方法。 解决方案：本发明提供（1）用于喷墨记录的水分散体，其包含主体为3.5-20mL / g的有机颜料; （2）用于喷墨记录的水性分散体，其含有含有3.5-20mL / g体积的颜料的水不溶性聚合物颗粒; （3）含有通过粉碎/分级处理获得的有机颜料的喷墨记录用水分散体，其中有机颜料的D50为2-15μm，D90为≤60μm; （4）含有水分散体的喷墨记录用水性油墨; 和（5）一种水分散体的制造方法。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2005194326A

公开(公告)日：2005-07-21

申请号：JP2003435741

申请日：2003-12-26

Applicant: Kao Corp ,  花王株式会社

Inventor： KOGA YOSHIO ,  UEYAMA NORIO ,  IWASAKI TOSHIYA

IPC: C09D11/00

Abstract: PROBLEM TO BE SOLVED: To provide a water-based ink which has excellent dispersion stability, does not clog the head of a printer, and has excellent printing characteristics (glossiness). SOLUTION: This method for producing the water-based ink has a dispersion process for subjecting a mixture liquid comprising a dispersion medium, a pigment, and a water-insoluble polymer with a high pressure homogenizer at a treatment pressure of ≥1.2×10 8 Pa and with ≥9 passes. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有优异的分散稳定性的水性油墨，不会堵塞打印机的头部，并且具有优异的印刷特性（光泽度）。 解决方案：这种制备水性油墨的方法具​​有分散方法，用于在高压均化器中将包含分散介质，颜料和水不溶性聚合物的混合液在处理压力≥1.2× 10 8 Pa，≥9次。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005187795A

公开(公告)日：2005-07-14

申请号：JP2004165840

申请日：2004-06-03

Applicant: Kao Corp ,  花王株式会社

Inventor： IWASAKI TOSHIYA ,  KANO KENJI ,  UEYAMA NORIO ,  KOGA YOSHIO

IPC: C09B67/20 ,  C09B67/46 ,  C09D11/00 ,  C09D17/00

CPC classification number: C09D17/001 ,  C09B67/0066 ,  C09B67/0091

Abstract: PROBLEM TO BE SOLVED: To provide a method for simply and stably preparing a water-based pigment dispersion which can form a small particle diameter of the pigment upon the pigment dispersion, and gives printed matter having excellent glossiness. SOLUTION: The method for preparing the water-based pigment dispersion comprises mixing an emulsified composition comprising a water-insoluble polymer having a salt-forming group, an organic solvent having a solubility of 5-40 pts.wt. in water of 100 pts.wt. at 20°C, a neutralizing agent, and water with the pigment so that a content of non-volatile components in the mixture is 15-50 wt.%, and a weight ratio of the organic solvent to water (weight of the organic solvent/weight of the water) is 0.1-0.9, and dispersing the resulting mixture, and then, removing the organic solvent from the mixture. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种简单稳定地制备能够在颜料分散体上形成颜料的小粒径的水性颜料分散体的方法，并且得到具有优异光泽度的印刷品。 解决方案：水性颜料分散体的制备方法包括混合包含具有成盐基团的水不溶性聚合物，溶解度为5-40重量份的有机溶剂的乳化组合物。 在水中100磅 在20℃，中和剂和与颜料的水，使得混合物中的非挥发性成分的含量为15-50重量％，有机溶剂与水的重量比（有机溶剂的重量） /水重量）为0.1-0.9，分散所得混合物，然后从混合物中除去有机溶剂。 版权所有（C）2005，JPO＆NCIPI