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: US58733申请日: 1998-04-13
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公开(公告)号: US5863698A公开(公告)日: 1999-01-26
- 发明人: Raj D. Patel , Paul F. Smith , Beverly C. Dutoff , Nan-Xing Hu , Beng S. Ong , Michael A. Hopper
- 申请人: Raj D. Patel , Paul F. Smith , Beverly C. Dutoff , Nan-Xing Hu , Beng S. Ong , Michael A. Hopper
- 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 ; G03G9/097 ; G03G9/087
摘要:
A process for the preparation of toner comprising mixing a colorant containing a surfactant and a latex emulsion, and wherein the latex emulsion contains resin and a nonionic hydrolyzable surfactant, and wherein said surfactant is of the Formulas (I) or (II), or optionally mixtures thereof ##STR1## wherein R.sup.1 is a hydrophobic aliphatic, or hydrophobic aromatic group; R.sup.2 is selected from the group consisting of hydrogen, alkyl, aryl, alkylaryl, and alkylarylalkyl; R.sup.3 is hydrogen or alkyl; A is a hydrophilic polymer chain, and m represents the number of A segments; heating below about the resin latex glass transition temperature, followed by the addition of an anionic stabilizer, thereafter heating above about the resin glass transition temperature, and adjusting the pH of the resulting mixture of resin and colorant particles suspended in an aqueous phase containing anionic surfactant, cationic surfactant and nonionic hydrolyzable surfactant, wherein said pH is increased from about 1.7 to about 2.5 to about 6 to about 12 by adding a base during the heating above about said resin glass transition temperature wherein coalescence is being accomplished.
公开/授权文献
- USD391786S Night table 公开/授权日:1998-03-10
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