| 摘要 |
<p>PURPOSE:To provide a high durability developer excellent in low temp. fixability, anti-offsetting property and blocking resistance and to provide a toner having small variation in Q-M ratio even at the time of an environmental change. CONSTITUTION:This toner contains a bonding resin made of a compsn. based on a matrix and domain particles having 0.5-2.0mum particle diameter and has 5X10<6>-5X10<7>dyn/cm<2> modulus G' of storage elasticity at 80-100 deg.C and 1X10<3>-1X10<5>dyn/cm<2> modulus G'' of loss elasticity at 200-220 deg.C as rheology characteristics at 100Hz frequency. When a fluorine-contg. quat. ammonium salt compd. represented by the formula is contained, this toner is less liable to a variation in Q-M ratio. In the formula, X is -SO2-or -CO-, each of R1-R4 is H, 1-10C lower alkyl or aryl, (m) is a positive integer and (n) is a positive integer.</p> |
