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Toner and two-component developer

  • US 9,665,023 B2
  • Filed: 12/10/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 12/20/2013
  • Status: Active Grant
First Claim
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1. A toner comprising toner particles each comprising:

  • a binder resin containing a polyester α

    as a main component thereof, said polyester α

    comprising a polyvalent carboxylic acid unit and a polyhydric alcohol unit comprising a polyhydric alcohol unit N derived from an alkylene oxide adduct of a novolac type phenol resin;

    a colorant;

    a wax; and

    a crystalline polyester obtained by subjecting a monomer composition to a condensation polymerization reaction, the monomer composition comprising (i) a monovalent carboxylic acid monomer, (ii) an aliphatic diol having 2 to 22 carbon atoms, and (iii) an aliphatic dicarboxylic acid having 2 to 22 carbon atoms, whereinthe polyester α

    comprises 0.1 to 3.0 mol % of the polyhydric alcohol unit N with respect to a total number of moles of the polyhydric alcohol unit.

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