Toners for electrophotography

摘要

The present invention relates to a toner for electrophotography including core-shell particles each including a core containing a amorphous composite resin (A) which contains a segment (A1) formed of a polyester resin and a segment (A2) formed of a styrene-containing addition polymer as a constitutional unit thereof and a shell containing a amorphous resin (B) obtained by polycondensing an alcohol component containing an aliphatic diol having 2 to 6 carbon atoms with a carboxylic acid component.

主权项

1. A toner for electrophotography, comprising core-shell particles,
wherein the core-shell particles comprise: a core, comprising an amorphous composite resin (A) which comprises a segment (A1) formed of a polyester resin and a segment (A2) formed of a styrene-containing addition polymer as a constitutional unit thereof, and a shell, comprising an amorphous resin (B) obtained by polycondensing an alcohol component comprising an aliphatic diol having 2 to 6 carbon atoms with a carboxylic acid component, wherein the segment (A1) comprises an alcohol component, wherein a content of an aromatic diol in the alcohol component of the segment (A1) is from 50 to 100 mol %, wherein a content of the aliphatic diol having 2 to 6 carbon atoms in the alcohol component of the amorphous resin (B) is from 80 to 100 mol %.