| 摘要 |
PURPOSE:To improve low-temp. fixability by incorporating a resin consisting of a high-mol. wt. copolymer component and low-mol. wt. copolymer component which are respectively specific and aliphat. alcohol as essential components into the above toner. CONSTITUTION:This toner is formed by incorporating 100pts.wt. resin which is a copolymer of a styrene monomer and (meth)acrylate monomer and consists of the high-mol. wt. copolymer component having 20 to 2,000,000max. peak mol. wt. of mol. wt. distribution and the low-mol. wt. copolymer component of 0.4 to 80,000max. peak mol. wt. of mol. wt. distribution and 1 to 40pts.wt. aliphat. alcohol essentially consisting of 18 to 50C aliphat. alcohol and having <=25 penetration number at 25 deg.C. The toner which has excellent low-temp. fixability without degrading the offset resistance and blocking resistance and with which the contamination of a photosensitive drum is prevented is obtd. in this way. |
