Red toner for color electrostatic development and preparation method thereof

Abstract

The invention discloses a red toner for color electrostatic development and a preparation method thereof. The red toner is prepared from the following raw materials in parts by weight: 85-95 parts of polyester resins, 3-6 parts of wax, 2-5 parts of red pigments, 1-3 parts of charge control agent, 1-3 parts of fumed silica and 0.5-2 parts of titanium dioxide. The toner product is prepared by carrying out premixing, mixing, cooling, coarse crushing, gas flow crushing and classifying, micropowder classifying, additive premixing, spherical processing, additive post-mixing and finally sieving and packaging procedures on the materials in sequence. The red toner and the preparation method have the following beneficial effects: compared with the traditional physical crushing methods, in the preparation method, a continuous mixer is adopted instead of an intermittent internal mixer or extruder equipment, spherical processing equipment is added, and the additive premixing and spherical processing procedures are added on the process route, thus effectively solving the problems of nonuniform dispersion and spheroidization of particle shapes.

Description

technical field [0001] The invention relates to a red toner for color electrostatic development and a preparation method thereof, belonging to the technical field of developers. Background technique [0002] With the change of information processing quantity and demand, digitization, high-speed, and colorization of electrostatic copying and printing have become a trend. The increasing popularity of colorization has led to a rapid increase in the use of toners for color development. The general quality requirements of color toner are uniform and pure color, no color cast, relatively small particle size, etc., to meet the requirements of high resolution. [0003] At the same time, the design of the electrostatic copying system equipment requires a high transfer rate, which requires a uniform particle size and a high degree of sphericity. The manufacture of color toner, one is the traditional physical pulverization method, and the other is the chemical method. The former is m...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a red toner for color electrostatic development, which effectively solves the problems of uneven dispersion of the toner and spheroidization of the particle shape, makes the particle charge uniform, has good durability and fluidity, and reduces cost