Toner coagulant processes
AssigneeXerox Corporation
InventorsDaryl Vanbesien, Raj D. Patel, Michael A. Hopper, David J. Sanders, Kurt I. Halfyard, Danielle C. Boils
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Abstract
A process for the preparation of toner by, for example, mixing a colorant, a latex, a wax and a dual coagulant mixture comprising water solubilized silica with an alumina coating referred to as aluminized silica and a polyaluminum chloride to provide, for example, a toner composition of different gloss levels when fused.
Claims31
A process for the preparation of toner comprising mixing a colorant dispersion, a latex emulsion, a wax dispersion and coagulants comprising a colloidal alumina coated silica, and a polymetal halide.
A process for the preparation of toner comprising the mixing of a colorant dispersion, a latex emulsion, a wax dispersion, a colloidal alumina coated silica, and a polymetal halide, and wherein said mixture is aggregated by heating below the latex resin glass transition temperature, and thereafter fusing said resulting aggregates by heating above the latex resin glass transition temperature wherein said aggregate mixture is at a pH of from about 5 to about 8, and wherein said latex is comprised of resin, nonionic surfactant, ionic surfactant, and water.
A process for the preparation of toner comprising mixing a colorant, a latex, a colloidal alumina coated silica, and a polymetal halide wherein said colloidal is of a size diameter of from about 20 to about 150 nanometers, and optionally wherein said polymetal salt is a polyaluminum chloride or a polyaluminum sulfosilicate.
Dependencies are inferred from the claim text.