摘要:
The present disclosure provides polyesters suitable for use in forming toners. In embodiments, a polyester may be subjected to phase inversion emulsification, in which charge control agents are added so that the polyester emulsion includes charge control agents therein. The resulting polyester emulsion with charge control agents may then be utilized to form toner particles.
摘要:
Included is an emulsion aggregation toner formulation having at least one latex and a combination of at least two waxes, wherein one wax is a synthetic wax, and another wax is a natural wax, and further including a developer containing a carrier and the just-described toner.
摘要:
A toner includes particles of a resin, an optional colorant, a first wax and a second wax, where the toner particles are prepared by an emulsion aggregation process. Additional waxes can also be added for different properties.
摘要:
A toner including toner particles of a styrene acrylate binder and at least one colorant, wherein the styrene acrylate binder has a weight average molecular weight of about 20 to about 30 kpse and a molecular peak of about 23 to about 28 kpse, the toner particles have a weight average molecular weight of about 28 to about 130 kpse, a number average molecular weight to about 9 to about 13.4 and a MWD of about 2.2 to about 10, and the toner particles have a cohesion of about 55 to about 98% at a mean circularity of about 0.94 to about 0.98. Also included is a set of toners for forming a color image, comprising a cyan toner, a magenta toner, a yellow toner and a black toner, wherein each of the cyan toner, the magenta toner, the yellow toner and the black toner have toner particles of about 70 to about 95% by weight, solids basis, of a styrene acrylate binder, about 5 to about 15% by weight, solids basis, of a wax dispersion, and at least one colorant.
摘要:
A process for the preparation of a toner comprising: preparing an organic phase comprised of a first nonpolar olefinic monomer, a second nonpolar diolefinic monomer, a pigment, a free radical initiator, and optionally a charge control agent; adding the organic phase to an aqueous phase comprised of at least one surfactant; shearing the organic phase into the aqueous phase to form a microdroplet suspension of the organic phase dispersed in the aqueous phase; heating and polymerizing the microdroplets in the suspension to form nonpolar olefinic resin particles; halogenating the nonpolar olefinic resin particle mixture to form a nonpolar toner having a halopolymer resin outer surface or encapsulating shell; and optionally isolating the surface halogenated nonpolar toner.
摘要:
A toner composition comprised of a core comprised of a polymer resin or resins, low remanence-magnetite of from between about 0.1 to about 8 gauss with an average volume particle diameter of from between about 2 to about 6 microns, and a light scattering component with an average particle diameter of from between about 2 to about 6 microns; and which core is encapsulated in a polymeric shell.
摘要:
A toner composition comprised of a homogeneous or substantially homogeneous mixture of polymer resin or resins, and color pigments, dyes, or mixtures thereof overcoated with a component derived from the condensation of a cellulose polymer with a silane component.
摘要:
The present disclosure provides for oscillatory flow continuous reactors suitable for use in forming emulsion aggregation toners. The reactor may include at least one receptacle being a flexible, tubular member. The reactor may also include a plurality of baffles disposed, at spaced apart intervals, along an interior space of the tubular member, each of the plurality of baffles including one or more orifices. Additionally, one or more fluids may flow through the tubular member. The oscillatory flow continuous reactor may be used in an emulsion aggregation process to produce toner particles.
摘要:
The present disclosure provides methods for incorporating a dye into latex particles via a supercritical fluid microencapsulation technique, in order to achieve improved dispersion of a colorant in the latex and an increase in color gamut.