Fusible electrostatically attractable toner.

摘要

A toner composition of electrostatically attractable fusible powder particles suitable for use in a heat- and pressure fixing system having a melt viscosity at 140°C in the range of 10° to 10<Sup>6</Sup> mPa · s and an average particle size in the range of 1 to 50 µm, said toner particles comprising a colouring substance and for more than 80% by volume of a mixture of the following substances (1), (2), (3) and (4), wherein
<UnorderedLists id="ula01" listStyle="none"><ListItem>(1) and (2) are polyester resins,</ListItem><ListItem>(3) is a sterically hindered phenol, and</ListItem><ListItem>(4) is a melt-viscosity controlling pigment e.g. barium sulphate.</ListItem></UnorderedLists>