发明授权
- 专利标题： Toner compositions and processes
- 专利标题（中）： 调色剂组成和工艺
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申请号： US825451申请日： 1997-03-28
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公开(公告)号： US5763133A公开(公告)日： 1998-06-09
- 发明人: Beng S. Ong , Walter Mychajlowskij , Grazyna E. Kmiecik-Lawrynowicz , Raj D. Patel , David J. Sanders , Stephan V. Drappel
- 申请人： Beng S. Ong , Walter Mychajlowskij , Grazyna E. Kmiecik-Lawrynowicz , Raj D. Patel , David J. Sanders , Stephan V. Drappel
- 申请人地址： CT Stamford
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： CT Stamford
- 主分类号： G03G9/08
- IPC分类号： G03G9/08 ; G03G9/087 ; G03G9/09 ; G03G9/097
摘要：
A process for the preparation of toner comprising (i) blending (a) an aqueous pigment dispersion containing a first ionic surfactant and an optional charge control agent with (b) a latex blend comprised of linear polymer and crosslinked polymer particles, optional nonionic surfactant and a second ionic surfactant with a charge polarity opposite to that of said first ionic surfactant in said pigment dispersion; (ii) heating the resulting mixture at about below the glass transition temperature (Tg) of the linear latex polymer to form toner sized aggregates; and (iii) subsequently heating said aggregate suspension about above the Tg of the linear latex polymer to effect fusion or coalescence of said aggregates.