发明名称 |
Process for producing toner for developing electrostatic image |
摘要 |
A process for producing a toner for developing electrostatic image is described, which involves an agglomerate step wherein a dispersion liquid containing at least primary polymer particles and colorant particles is stirred in a stirring tank to agglomerate the particles to thereby obtain agglomerate of the particles and an aging step wherein the resultant agglomerate of the particles is kept at a temperature higher than the glass transition temperature (Tg) of the primary polymer particles by 10° C. or more for a predetermined period of time to thereby fuse the particles, which process is characterized in that the concentration of solid content (C1) in the agglomerate step is 10 to 40% by weight, and that the concentration of the solid content (C2) in the aging step is in the range of 0.3C1<=C2&LE;0.8C1.
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申请公布号 |
US6720123(B2) |
申请公布日期 |
2004.04.13 |
申请号 |
US20020066614 |
申请日期 |
2002.02.06 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
XU YUQING;MITSUHASHI KAZUO;TOKUNAGA TOMOHIKO;HOSHINO TOYOMASA |
分类号 |
G03G9/08;(IPC1-7):C08J3/215 |
主分类号 |
G03G9/08 |
代理机构 |
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地址 |
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