Toner
AssigneeCanon Kabushiki Kaisha
InventorsShuhei Moribe, Nobuyuki Okubo, Tsutomu Onuma, Shinichiro Abe, Koji Nishikawa
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Abstract
A toner is disclosed including toner particles containing a binder resin and a colorant. The binder resin contains a vinyl resin. In the high-temperature GPC-RALLS-viscometer analysis of the o-dichlorobenzene-soluble matter of the toner, a weight-average molecular weigh of absolute molecular weights measured with a viscosity detector is in a specific range. In the o-dichlorobenzene-soluble matter, a component with the absolute molecular weight of 10,000 or less and a component with the absolute molecular weight of 1,000,000 or more are present in specific proportions, respectively. The intrinsic viscosity of the toner is in a specific range.
Claims7
A toner comprising:
- toner particles containing at least a binder resin, a hydrocarbon wax (a), a hydrocarbon wax (b) and a colorant, wherein;
- said binder resin contains a vinyl resin;
- said hydrocarbon wax (a) has a hydroxyl value of less than 5 mg·KOH/g and an ester value of less than 1 mg·KOH/g;
- said hydrocarbon wax (b) has a hydroxyl value Hv of 5 to 150 mg·KOH/g;
- a weight average molecular weight (Mw) of absolute molecular weights measured with a viscosity detector in high-temperature GPC-RALLS-viscometer analysis of o-dichlorobenzene-soluble matter of said toner is from 1.0×103 to 1×105;
- in said o-dichlorobenzene-soluble matter, a component having the absolute molecular weight of 10,000 or less is in a proportion of from 40% by weight to 90% by weight, and a component having the absolute molecular weight of 1,000,000 or more is less than 10% by weight;
- and
- said toner has an intrinsic viscosity of from 0.20 ml/g to 0.60 ml/g as measured with the viscosity detector.
Dependencies are inferred from the claim text.