| 摘要 |
A toner for electrostatic image development comprising a resin binder comprising (a) a high-softening point polyester having a softening point of greater than 120° C. and 160° C. or less; and (b) a low-softening point polyester having a softening point of 75° C. or more and 120° C. or less, each of the high-softening point polyester (a) and the low-softening point polyester (b) being obtained by polycondensing an alcohol component consisting essentially of an aliphatic alcohol with a carboxylic acid component, wherein a difference in the softening points between the high-softening point polyester (a) and the low-softening point polyester (b) is 10° C. or more. This toner has excellent pulverizability and fixing ability, and hardly causes filming, so that it can be applied to a laser beam printer having a linear speed of 280 mm/sec or more.
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