Toner for electrostatic image development, production method of the toner and image formation method
A technology of electrostatic charge image and manufacturing method, which is applied in the directions of developer, electrography, instrument, etc., can solve the problems of charge quantity fluctuation, browning, color development obstacle of color toner, etc. The effect of the change in electricity
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[0199] Example 1
[0200] Hereinafter, the present invention will be specifically described with examples, but the present invention is not limited to these. It should be noted that in the examples, the expression "parts" or "%" is used, and unless otherwise specified, it means "parts by mass" or "% by mass".
[0201] [Synthesis of monomer]
[0202]
[0203] To a dichloromethane solution (200ml) of 5-hydroxymethylfurfural (12.6g, 100mmol) and triethylamine (29.2ml, 210mmol), under nitrogen flow, methacryloyl chloride (8.5ml) was added dropwise at 0°C , 105mmol), stirred at room temperature for one day to prepare a reaction mixture. Use 1N-HCL (200ml×2), saturated NaHCO 3 After washing the reaction mixture with aqueous solution (200ml×1) and saturated NaCl aqueous solution (200ml×1), use anhydrous MgSO 4 Dry and filter. The solvent of the filtrate thus obtained was distilled off under reduced pressure to obtain a crude monomer A. It was separated by silica gel column chromatography...
Example Embodiment
[0222]
[0223] (1) Preparation process of colorant particle dispersion liquid
[0224] 11.5 parts by mass of sodium lauryl sulfate was put into 160 parts by mass of ion-exchanged water, dissolved and stirred to prepare an aqueous surfactant solution. To this surfactant aqueous solution, slowly add 15 parts by mass of colorant (CI Pigment Orange 36), and then use a mechanical disperser "CREARMIX" (manufactured by M-Technique) to perform dispersion treatment to prepare dispersed colorant particles Colorant particle dispersion liquid [Or].
[0225] (2) Preparation of resin particle dispersion [A1]
[0226] (A) The first step of polymerization
[0227] The surface activity obtained by dissolving 4 parts by mass of polyoxyethylene (2) sodium lauryl ether sulfate in 3000 parts by mass of ion-exchanged water is added to a reaction vessel equipped with a stirring device, a temperature sensor, a condenser, and a nitrogen introduction device. The internal temperature of the agent solution wa...
Example Embodiment
[0239]
[0240] Except for changing the monomer A to the monomer B, an orange toner [B1] was prepared in the same manner as in Preparation Example 1 of the orange toner.
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