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    • 57. 发明专利
    • Method for producing pigment dispersion and apparatus for producing pigment dispersion
    • 用于生产色素分散液的方法和用于生产色素分散剂的装置
    • JP2006124556A
    • 2006-05-18
    • JP2004316151
    • 2004-10-29
    • Canon Incキヤノン株式会社
    • TEJIMA TAKAYUKIIHARA SHOJIYAMADA KENJIHANIYU YUKIO
    • C09D17/00C09D11/00C09D11/322C09D11/328
    • C09C3/08B01F3/1214B01F5/045B01F13/0059B01F2003/0064B01J3/008B01J19/0093B01J2219/00873B01J2219/00891C01P2002/80C01P2004/64C09B67/0014C09B67/0091C09C1/00Y02P20/544
    • PROBLEM TO BE SOLVED: To provide a pigment dispersion settling the problem that recent requirement for high quality and high speed printing using ink-jet method is difficult to satisfy the requirements with the pigment made by conventional methods for dispersing pigments and capable of (1) uniformly dispersing small particles, (2) widely selecting dispersants, (3) widely selecting solvents and (4) stabilizing dispersion for a long term. SOLUTION: The method for producing pigment dispersion comprises a step for cooling a subcritical or supercritical fluid dissolving the pigment to crystalize the dissolved pigment and a step for dispersing the crystallized pigment with a dispersant, wherein the subcritical or supercritical fluid dissolving the pigment, a coolant and a dispersant solution are flowed through each supply port and in one flow path of a microreactor cooled outside to form an open boundary face between adjacent mutual fluids and crystallization and dispersion are performed stepwise by diffusion and transfer. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种颜料分散体,其解决了使用喷墨法近来对高质量和高速印刷的要求难以满足用常规分散颜料的方法制备的颜料的要求的问题,并且能够 (1)均匀分散小颗粒,(2)广泛选择分散剂,(3)广泛选择溶剂,(4)长期稳定分散。 解决方案:用于制备颜料分散体的方法包括用于冷却溶解颜料的亚临界或超临界流体以使溶解的颜料结晶的步骤和用分散剂分散结晶的颜料的步骤,其中溶解颜料的亚临界或超临界流体 ,冷却剂和分散剂溶液流过每个供应口,并在冷却到外部的微反应器的一个流动路径中流动,在相邻的相互流体之间形成开放的边界面,并且通过扩散和转移逐步进行结晶和分散。 版权所有(C)2006,JPO&NCIPI