摘要:
Toner including toner particles having a calcium-containing material at least in a surface portion of the toner particle, wherein the toner particles contain calcium in an amount of from 20 ppm to about 300 ppm of calcium by dry weight of the toner. Developer including a carrier and a toner, wherein the toner includes toner particles having a calcium-containing material at least in a surface portion of the toner particles. In an emulsion aggregation process for making toner particles, the toner particles are treated with calcium. The addition of calcium to the toner particles improves toner performance by lowering cohesion and charging, thereby generating an image of high gloss.
摘要:
A toner having a core with a first latex having a specific glass transition temperature, and further having a shell surrounding the core with a second latex having a specific glass transition temperature, and processes for producing the same.
摘要:
A toner having a core with a first latex having a specific glass transition temperature, and further having a shell surrounding the core with a second latex having a specific glass transition temperature, and processes for producing the same.
摘要:
A method of predicting a Lewis acid-base relative humidity (RH) ratio in a two-component developer comprised of at least a toner and a carrier including selecting a candidate toner, selecting a candidate carrier, and determining the Lewis acid and Lewis base constants for the candidate toner and candidate carrier. In addition, calculating the Lewis acid-base RH ratio wherein the calculated Lewis acid-base RH ratio is related to charge RH ratio.
摘要:
A pigment particle coated with at least one of a resin and a charge control surface additive, wherein the pigment particle is a pearlescent or metallic pigment. The pigment adds pearlescent effects and is of a size and charge as to be used as a toner material in electrostatographic or xerographic image formation.
摘要:
A carrier comprised of a core, and thereover a polymer coating containing antimony tin oxide with an average diameter of from about 5 to about 90 nanometers.
摘要:
Disclosed herein are toner particles generated by emulsion/aggregation processes. The processes are conducted under conditions that shorten the time for coalescence and post-formation washing, thereby increasing efficiency of the processes as compared to conventional processes.
摘要:
A developer includes a carrier and a toner, wherein the toner contains toner particles of at least one binder, at least one colorant, and external additives, wherein the developer has a trimmer clogging value in relation to toner triboelectric charge and toner cohesion expressed according to the equation (−0.80+0.039×(% toner cohesion)+0.026×(toner triboelectric charge) (μC/g)) of less than or equal to about 3.2.
摘要:
Pigment particles with at least one metal oxide surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer, wherein the pigment particle is a pearlescent or metallic pigment.
摘要:
The present disclosure provides processes for producing polyester toners by emulsion aggregation where the resulting toner particles have high pigment loadings and desired circularity. The methods include adding a metal, in embodiments a metal compound, at the beginning of coalescence, which speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems.