Patent ID: 10495998

Abstract:
A chemically prepared multilayered toner composition, according to one example embodiment, includes a core having a first amorphous polyester resin, a second amorphous polyester resin, a colorant, and a release agent. A first layer is formed around the core wherein the first layer includes the same second amorphous polyester resin that is in the toner core. A second layer is formed on the surface of the first layer, wherein the second layer includes a third amorphous polyester resin. A borax coupling agent is between the first and second layers. In an embodiment the ratio of the second polymer in the core to second polymer in the first layer is about 50:50. The second layer can also be referred to as a shell that is formed over the toner particle having a center core, first layer and borax coupling agent. In another embodiment, the core does not contain a second amorphous polyester resin.