发明名称 |
WATER DISPERSION OF CARBON BLACK AND PROCESS FOR PRODUCING THE SAME |
摘要 |
<p>A carbon black aqueous dispersion which has excellent dispersibility and ink performance and is suitable as an aqueous black ink for an inkjet printer or the like, and a method of producing the same. The carbon black aqueous dispersion is obtained by spraying a slurry including carbon black, a surface chemical modifier, and an aqueous medium under pressure from a nozzle to cause collision between sprayed streams or between sprayed streams and a wall surface. The carbon black agglomerates have a maximum particle diameter of 1 µm or less. The production method includes mixing carbon black and a surface chemical modifier into an aqueous medium to form a slurry, and spraying the slurry from a nozzle under pressure to cause collision between sprayed streams or between sprayed streams and a wall surface to atomize and chemically modify carbon black agglomerates, thereby finely dispersing the carbon black in the aqueous medium to such an extent that the carbon black agglomerates have a maximum particle diameter of 1 µm or less.</p> |
申请公布号 |
EP1826247(B1) |
申请公布日期 |
2014.12.24 |
申请号 |
EP20050803427 |
申请日期 |
2005.11.04 |
申请人 |
TOKAI CARBON COMPANY, LTD. |
发明人 |
NAKATA, HIDENAO;ARAI, HIRONORI |
分类号 |
C09C1/56;C01B31/00;C09C1/58;C09C3/04;C09C3/06;C09C3/08;C09D17/00 |
主分类号 |
C09C1/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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