发明授权
- 专利标题: Toner processes
- 专利标题(中): 墨粉处理
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申请号: US191713申请日: 1998-11-13
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公开(公告)号: US5962179A公开(公告)日: 1999-10-05
- 发明人: Enno E. Agur , Francisco E. Torres , T. Hwee Ng , Allan K. Chen , Arthur Helbrecht , Maria N. V. McDougall , Richard P. N. Veregin
- 申请人: Enno E. Agur , Francisco E. Torres , T. Hwee Ng , Allan K. Chen , Arthur Helbrecht , Maria N. V. McDougall , Richard P. N. Veregin
- 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
摘要:
A process for the preparation of toner comprising mixing a colorant dispersion in water, which dispersion is comprised of a colorant and an ionic surfactant with a resin latex; heating the resulting flocculent mixture with stirring at a temperature of from about 25.degree. C. to about 1.degree. C. below the glass transition temperature (Tg) of the latex resin to effect formation of toner sized aggregates; heating the resulting aggregate suspension in the presence of additional anionic surfactant, and which heating is at a temperature of from about 10.degree. C. to about 55.degree. C. above the Tg of the resin; cooling; adding a base component to the resulting slurry; filtering; and thereafter drying said toner.
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