TONER COMPOSITION

The invention provides a toner comprising a core comprising a first latex having a glass transition temperature from about 45° C to about 54° C; and a shell surrounding said core comprising a second latex having a glass transition temperature from about 55° C to about 65° C. The invention further pr...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MARCELLO, VINCENZO G, MATTISON JR., DENNIS A, HUNT, NANCY S, ISGANITIS, LOUIS V, SKOROKHOD, VLADISLAV, ANDERSON, CHRISTINE, CUMMINGS, LIAM S, NG, TIE HWEE, VANSCOTT, STEVEN A, VANBESIEN, DARYL W, VONG, CUONG, HAWKINS, MICHAEL S, VEREGIN, RICHARD P N, CHEN, ALLAN K
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention provides a toner comprising a core comprising a first latex having a glass transition temperature from about 45° C to about 54° C; and a shell surrounding said core comprising a second latex having a glass transition temperature from about 55° C to about 65° C. The invention further provides a process comprising contacting a latex having a glass transition temperature from about 45° C to about 54° C, an aqueous colorant dispersion, and a wax dispersion having a melting point of from about 70°C to about 95°C to form a blend; mixing the blend with a coagulant; heating the mixture to form toner aggregates; adding a second latex having a glass transition temperature from about 55° C to about 65° C to the toner aggregates, wherein the second latex forms a shell over said toner aggregates; adding a base to increase the pH to a value of from about 4 to about 7; heating the toner aggregates with the shell above the glass transition temperature of the first latex and the second latex; and recovering a resulting toner.