发明名称 |
TONER AGGREGATION PROCESSES |
摘要 |
A process for the preparation of toner compositions comprising: (i) preparing a pigment dispersion, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent; (ii) shearing said pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant; (iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin, to form electrostatically bound toner size aggregates with a narrow particle size distribution; and (iv) heating said bound aggregates above about the Tg of the resin.
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申请公布号 |
CA2123352(C) |
申请公布日期 |
1998.06.23 |
申请号 |
CA19942123352 |
申请日期 |
1994.05.11 |
申请人 |
XEROX CORPORATION |
发明人 |
KMIECIK-LAWRYNOWICZ, GRAZYNA E.;PATEL, RAJ D.;HOPPER, MICHAEL A. |
分类号 |
G03G9/087;G03G9/08;G03G9/09;G03G9/097;(IPC1-7):G03G9/08 |
主分类号 |
G03G9/087 |
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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