METHOD FOR FORMING TONER PARTICLE
    9.
    发明专利

    公开(公告)号:JP2002296833A

    公开(公告)日:2002-10-09

    申请号:JP2002079965

    申请日:2002-03-22

    Applicant: XEROX CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing toner particles by which the toner particles having a small grain size and a narrow grain size distribution are generated in a shorter time and also coarse grain and soiling are eliminated. SOLUTION: This method of forming the toner particles includes a process to aggregate the toner particles by adding an aggregating agent to a latex emulsion of resin having a colorant mixed therein under a temperature condition above the glass transition temperature of the resin and a stirring condition, and a process of adding the flocculating agent consists of a first introduction to add at least about 40 wt.% of the total amount of the aggregating agent to be added at a high introduction rate and a second addition to continuously add the remaining aggregating agent at an adding rate lower than the introduction rate. When the particles grow to a desirable grain size, the particles are allowed to cool so that the temperature of the particles is lowered to the temperature below the glass transition temperature of the resin.

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