| 摘要 |
<p>PURPOSE:To obtain a magnetic toner excellent in fixation with excellent fixing property free from generation of off-set, excellent in dispersibility of a magnetic powder without selective development, free from selective consumption of a component in continuous use and high in durability with constancy of a composition. CONSTITUTION:In the magnetic toner using a mixture consisting of at least a magnetic powder, a low molecular weight polyolefin or low molecular weight polyolefin copolymer, a styrene resin having a peak in a range of 1000-30000 molecular weight expressed in term of styrene based on the GPC measurement and a styrene-acrylic resin having a peak in a range of 5000-1000000 molecular weight as a binding resin, the styreneacrylic resin obtained by copolymerizing a carboxylic acid containing vinyl compound is used as the resin having the peak in high molecular weight range and acid value of the binding resin of the mixture is 1-20.</p> |
