| abstract |
Toner comprising a toner material, the toner satisfying the following formula: 5ºC <= ΔTm <= 20ºC where ΔTm represents Tma Tmb, Tma (ºC) is the output flow temperature of 1/2 of the toner by means of a type flow check capillary, and Tmb (° C) is the outlet flow temperature of 1/2 of a mixture kneaded by fusion of the toner by means of the capillary flow checker, and where Tma is from 130 ° C to 200 ° C, the toner has a core structure -breastplate; and the outlet flow temperatures of 1/2 Tma and Tmb represent the temperature at which 1/2 of the toner and 1/2 of the mixture kneaded by melting the toner flow out, respectively, measured under loading conditions of 30 kg, diameter of 1 mm die and a temperature rise rate of 3 ° C / min, and the melt kneaded mixture is kneaded by melt by batch-type fusion of 45 g of toner, at a temperature of 130 ° C, with a number of rotations 50 rpm, for minutes. |