Toner
A technology of toner and binder resin, which is applied in the field of toner, and can solve problems such as difficulty in plasticizing near the surface of the toner
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preparation example Construction
[0057] Preparation of polymerizable monomer composition
[0058] A polymerizable monomer composition is prepared, wherein the polymerizable monomer composition comprises a silicone polymer, a wax, optional additives such as colorants, and a polymerizable monomer capable of forming a binder resin. The colorant may be previously dispersed in a part of the polymerizable monomer, and then mixed with, for example, the remaining polymerizable monomer. In addition, the polymerizable monomer composition can be prepared by mixing all components simultaneously.
[0059] Granulation step
[0060] The polymerizable monomer composition is introduced and dispersed in an aqueous medium containing a surfactant or poorly water-soluble inorganic fine particles to form particles of the polymerizable monomer composition in the aqueous medium. A dispersion comprising particles of the polymerizable monomer composition is thus obtained.
[0061] Preparation of aqueous media
[0062] The co...
specific example
[0119] C.I. Pigment Blue 15, C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:2, C.I. Pigment Blue 15:3, and C.I. Pigment Blue 15:4.
[0120] The pigment used for the magenta colorant can be exemplified by condensed azo compounds, diketopyrrolopyrrole compounds, anthraquinone compounds, quinacridone compounds, basic dye lake compounds, naphthol compounds, benzimidazolone compounds , thioindigo compounds and perylene compounds.
[0121] The following are specific examples:
[0122] C.I. Pigment Violet 19, C.I. Pigment Red 31, C.I. Pigment Red 122, C.I. Pigment Red 150, and C.I. Pigment Red 269.
[0123] Pigments used in the yellow colorant can be exemplified by condensed azo compounds, isoindolinone compounds, anthraquinone compounds, azo metal complexes, methine compounds and allylamide compounds.
[0124] The following are specific examples:
[0125] Pigment Yellow 74, C.I. Pigment Yellow 93, C.I. Pigment Yellow 120, C.I. Pigment Yellow 151, C.I. Pigment Yellow 155, C.I. Pigme...
Embodiment 1～25 and comparative example 1～3
[0392] Toners 1 to 25 (the toners in Examples 1 to 25) were mixed by adding 1.0 part of silica fine particles having a number average primary particle diameter of 40 nm to 100.0 parts of each of the obtained toner particles and mixing using FM Machine (Nippon Coke & Engineering Co., Ltd.) mixed to obtain.
[0393] Toners 26 to 28 (toners in Comparative Examples 1 to 3) were obtained by similarly mixing silica fine particles. The properties of the obtained toners are given in Table 1-1 and Table 1-2.
[0394] [Table 1-1]
[0395]
[0396] [Table 1-2]
[0397]
[0398] In the tables, "C." indicates "comparative", and "part" is based on 100 parts of the binder resin. The content (mass %) is the content in the toner particles. Tg is Tg of the binder resin. SiO in the No. column of the silicone polymer 2 Indicates the addition of SiO 2. The SP value difference is the difference between the SP value of the wax and the SP value of the silicone polymer. The particle siz...
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