Claims
- 1. A process for the preparation of a toner comprising an agglomerate of particles containing at least primary polymer particles, said primary polymer particles encapsulating a wax therein, which comprises:subjecting a monomer mixture containing a monomer having an acidic or basic group to seed emulsion polymerization in the presence of a particulate wax; mixing a dispersion of primary polymer particles thus obtained with a dispersion of particulate colorant; and causing the mixture of dispersions to agglomerate to form aggregates.
- 2. The preparation process according to claim 1, which further comprises adding a dispersion of particulate charge control agent to said mixture of dispersions.
- 3. The preparation process of claim 1, wherein said particulate wax is produced by dispersing the wax in the presence of an emulsifying agent.
- 4. The preparation process of claim 1, wherein said particulate wax has an average particle diameter of from 0.01 to 3 μm.
- 5. The preparation process of claim 1, wherein said particulate wax has an average particle diameter of from 0.03 to 1 μm.
- 6. The preparation process of claim 1, wherein said particulate wax has an average particle diameter of from 0.05 to 0.8 μm.
- 7. The preparation process of claim 1, wherein said primary polymer particles comprise a wax incorporated therein in an amount of from 1 to 40 parts by weight based on 100 parts by weight of polymer.
- 8. The preparation process of claim 1, wherein said particulate colorant is obtained by emulsifying the colorant in water in the presence of an emulsifying agent.
- 9. The preparation process of claim 1, wherein said colorant is used in an amount of from 3 to 20 parts by weight based on 100 parts by weight of polymer.
- 10. A preparation process according to claim 1, wherein said toner is in the form of a non-magnetic one-component developer.
Priority Claims (2)
Number |
Date |
Country |
Kind |
10-176975 |
Jun 1998 |
JP |
|
11-095993 |
Apr 1999 |
JP |
|
Parent Case Info
This application is a divisional of prior application U.S. Ser. No. 09/338,578, filed Jun. 23, 1999, pending.
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