US 9,811,017 B2
Hyperpigmented low melt toner
Christopher M. Wolfe, Rochester, NY (US); Padam K. Angra, Pittsford, NY (US); and Jacob W. Myers, II, Rochester, NY (US)
Assigned to XEROX CORPORATION, Norwalk, CT (US)
Filed by XEROX CORPORATION, Norwalk, CT (US)
Filed on Feb. 26, 2016, as Appl. No. 15/55,370.
Prior Publication US 2017/0248858 A1, Aug. 31, 2017
Int. Cl. G03G 9/093 (2006.01); G03G 9/08 (2006.01)
CPC G03G 9/09378 (2013.01) [G03G 9/0821 (2013.01); G03G 9/09321 (2013.01); G03G 9/09335 (2013.01); G03G 9/09364 (2013.01); G03G 9/09371 (2013.01)] 14 Claims
 
1. A low melt toner comprising:
a core comprising:
a core polystyrene-butyl acrylate resin;
a crystalline polyester resin;
a pigment present in an amount from about 7% to about 20% by weight of the low melt toner; and
a paraffin wax;
wherein a weight ratio of the polystyrene-butyl acrylate resin to crystalline polyester resin is in a range from about 5:1 to about 7:1; and
a shell disposed over the core comprising a shell polystyrene-butyl acrylate resin, wherein the shell polystyrene-butyl acrylate is present in a range from 25% to about 35% by weight of the low melt toner.
 
11. A low melt toner comprising:
a core comprising:
a core polystyrene-butyl acrylate resin present in an amount in a range from about 35% to about 45% by weight of the low melt toner;
a crystalline polyester resin present in an amount in a range from about 5% to about 8% by weight of the low melt toner;
a pigment present in an amount in a range from about 7% to about 20% by weight of the low melt toner;
a Fischer-Tropsch wax present in an amount in a range from about 8% to about 10% by weight of the low melt toner; and
a paraffin wax present in an amount in a range from about 1% to about 3% by weight of the low melt toner; and
a shell disposed over the core comprising a shell polystyrene-butyl acrylate resin, wherein the shell polystyrene-butyl acrylate resin is present in an amount in a range from about 30% to about 35% by weight of the low melt toner.