Color toners produced by chemical processes have been applied extensively in new generations of high-resolution 
   color laser printers which are rapidly replacing conventional laser printers using the mechanical, pulverized toners. 
   Compared to mechanical toners, CPT's have many attractive features:
Small and uniform particle size-High resolution image quality;
Narrow particle size distribution-Enhanced color gamut and uniform full-color images;
Tuned toner morphology and particle shape-Enhanced flow-ability and toner transfer efficiency.

   There are several reported CPT materials or processes which are currently used or practiced by printer machine 
   makers or toner manufactures:
Suspension polymerization-Canon, HP, Brother;
Emulsion/Aggregation(EA)- Xerox, Konica-Minolta, Epson;
Polyester x Polymerization(PxP)-Ricoh;
Phase-separation/Aggregation(PSA)-Sinonar.

    Currently,CPT products are owned or supplied overwhelmingly (99%) by OEM machine makers. 
   Suspension and emulsion/aggregation are two major methods to produce CPT.
   However, limitations still exist in both suspension and emulsion/aggregation methods:
Toner resin is limited and only styrene-acrylate can be used;
Production cycle time is long due to the polymerization of monomers;
High speed homogenizer equipment, extremely energy-consuming, is required for the processes.

   Sinonar's patented phase-separation/aggregation (PSA) method can overcome the              
   above drawbacks and limitations and provide the following advantages:
Broadened resin selection to include polyester, polyamide, and epoxy in addition to styrene-acrylate;
No chemical reaction involved and thus residual monomers can be avoided;
Short production cycles;
Energy-consuming high speed homogenization is not required.