Toner

A process for manufacturing a toner, comprising:

• (a) preparing a carboxyl group-containing vinyl resin by initially synthesizing a vinyl resin and thereafter, adding a monomer containing a carboxyl group to the vinyl resin, thereby synthesizing the carboxyl group-containing vinyl resin;
• (b) preparing a glycidyl group-containing vinyl resin by initially synthesizing a vinyl resin and thereafter, adding a monomer containing a glycidyl group to the vinyl resin, thereby synthesizing the glycidyl group-containing vinyl resin;
• (c) reacting the carboxyl group-containing vinyl resin with the glycidyl group-containing vinyl resin to obtain a styrene/acryl resin;
• (d) melt-kneading the styrene/acryl resin and a colorant;
• (e) pulverizing the resulting kneaded product;
• and
• (g) classifying the resulting pulverized product,
• wherein:
• (i) an obtained toner has a binder resin and a colorant,
• (ii) the binder resin in the toner contains 60% by mass or more of the styrene/acryl resin;
• (iii) the binder resin in the toner contains a THF-insoluble fraction A which is an extraction residue obtained by carrying out Soxhlet extraction with tetrahydrofuran (THF) for 16 hours;
• (iv) the THF-insoluble fraction A contains a TOL-insoluble fraction B which is an extraction residue obtained by carrying out Soxhlet extraction with toluene (TOL) for 16 hours;
• (v) a mass ratio (B/A) between the THF-insoluble fraction A and the TOL-insoluble fraction B is in a range of 0.1≦B/A≦0.5.