Toner for electrostatic charge image development
An electrostatic charge image, toner technology, applied in the direction of developer, electrography, instrument, etc.
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Embodiment 1
[0147]At room temperature, 81 parts of styrene, 19 parts of n-butyl acrylate, 7 parts of carbon black (produced by Mitsubishi Chemical Corporation, trade name "#25B"), 1 part of anti-negative resin (sulfonic acid functional group 2% Products, manufactured by Fujikura Chemical Co., Ltd., trade name "FCA S748"), 0.8 parts of divinylbenzene, 0.25 parts of polymethacrylate macromonomer (manufactured by Toa Gosei Chemical Co., Ltd., trade name "AA6"), 0.8 Parts of 2,2,4,6,6-pentamethylheptane-4-thiol and 10 parts of dipentaerythritol hexamyristate (acid value: 0.5 mgKOH / g, hydroxyl value: 0.9 mgKOH / g) were dispersed to obtain Polymerizable monomer composition.
[0148] In addition, 10.8 parts of magnesium chloride aqueous solution of magnesium chloride was dissolved in 250 parts of ion-exchanged water, while stirring, an aqueous sodium hydroxide solution in which 6.6 parts of sodium hydroxide was dissolved in 50 parts of ion-exchanged water was slowly added to prepare a magnesium h...
Embodiment 2
[0155] In addition to using 89 parts of styrene, 11 parts of n-butyl acrylate, 7 parts of carbon black (produced by Mitsubishi Chemical Corporation, trade name "#25B"), 1 part of anti-negative resin (product with 2% sulfonic acid functional group, Fujikura Chemical ( Co., Ltd., trade name "FCA S748"), 0.8 parts of divinylbenzene, 0.25 parts of polymethacrylate macromonomer (manufactured by Toa Synthetic Chemical Co., Ltd., trade name "AA6"), 0.8 parts of 2, 2, 4 , 6,6-pentamethylheptane-4-thiol and 10 parts of dipentaerythritol hexamyristate (acid value: 0.5 mgKOH / g, hydroxyl value: 0.9 mgKOH / g) to obtain a polymerizable monomer composition , and in the same manner as in Example 1, a toner for developing an electrostatic image was obtained. Evaluations of the properties and images of the obtained toner for electrostatic charge image development were carried out in the same manner as in Example 1. The results are shown in Table 1.
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