Environmentally-friendly developer and manufacturing method thereof

A developer and environmentally friendly technology, applied in the field of environmentally friendly developer, can solve the problems of increased adhesive force of developer, worsening of developer frictional charging uniformity, and lower yield, so as to suppress cold fixing offset and hot fixing offset. The effects of shifting, improving the uniformity of triboelectric charging, and increasing the rate and yield
CN101916054BActive Publication Date: 2012-04-25ICMI CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ICMI CHINA
Publication Date
2012-04-25

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Abstract

The invention discloses an environmentally-friendly developer and a manufacturing method thereof. The environmentally-friendly developer comprises petroleum base resin, bio-based resin, coloring agent and release agent, wherein release agent particles are evenly distributed in bio-based resin particles, and the bio-based resin particles containing the release agent particles are evenly distributed in the bio-based resin particles. The manufacturing method comprises the following steps: preliminary mixing: mixing the bio-based resin and the release agent in a high-speed mixer; preparing powder: fusing, mixing and extruding the obtained material in a double-screw extruder, quickly cooling, and smashing in a coarse crusher to obtain powder of which the particle diameter is 0.1-2 mm, wherein the release agent particles are evenly distributed in the bio-based resin particles; re-mixing: mixing the powder, the petroleum base resin, the coloring agent and charge control agent in the high-speed mixer, fusing, mixing and extruding the mixed material by the double-screw extruder, quickly cooling, coarsely crushing on the coarse crusher to obtain the material of which the particle size is 0.1-2 mm, and obtaining the micro powder after passing through an airflow smashing grader, wherein the diameter of the micro powder is 6-15 micrometers in volume distribution, and the diameter of 60-90%of micro powder is more than 5 micrometers; and adding: mixing the micro powder and external additive in the high-speed mixer, and removing coarse powder by screening or grading. The invention has the advantages of environment protection, excellent manufacturing manufacturability and good imaging quality.
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Description

technical field

[0001] The invention relates to an environmentally friendly developer used in electrophotographic imaging equipment and a manufacturing method. Background technique

[0002] Electrophotographic imaging equipment includes copiers, laser printers, and multifunctional machines, etc., which use a developer to form text or images on paper and other media.

[0003] The developer is generally a composition composed of at least a binder resin, a release agent and a colorant, and the binder resin accounts for the majority of the developer. The early adhesive resins were all made from chemical raw materials such as styrene and acrylic acid extracted from petroleum through polymerization chemical reactions. Although the developer made of petroleum-based resin as the binder resin can obtain a good imaging effect, it is difficult to degrade in the natural environment when the developer is discarded, thereby polluting the environment, even if the discarded The developer ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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