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A technology of toner and magnetic powder, which is applied in the fields of electrography, optics, instruments, etc., can solve the problems of inconvenience of adding toner, incompatibility of toner, and easy occurrence of bottom ash.
Inactive Publication Date: 2011-04-06
HEBEI FENGHUA HEAVY MECHANICAL & ELECTRICAL EQUIP MFG
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Summary
Abstract
Description
Claims
Application Information
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Problems solved by technology
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Problems solved by technology
However, various toners are not compatible with each other, resulting in easy occurrence of bottom dust in the copying process after adding ink. Therefore, it brings a lot of inconvenience to users when adding toner.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Weigh the raw materials according to the following parts by weight:
[0024] Styrene acrylic polymer resin: 56g, magnetic powder iron oxide 40g, charge control agent chromium oxide 5g, polypropylene wax 3g, stabilizer titanium oxide 5g, flow agent silica 6g.
[0025] Prepare according to the following steps:
[0026] ①The resin, magnetic powder, charge control agent and polypropylene wax are mixed in a low-speed mixer for 10 to 15 minutes according to the proportion, and then they are introduced into the mixer, where they are mixed at high temperature, extruded, placed, and then cooled;
[0027] ②After the material is cooled, use a coarse pulverizer to pulverize the material into 300-500um coarse material, and then use the jet mill to classify it into toner raw material with a diameter of 8 to 10um;
[0028] ③ Put the raw materials prepared in step ②, stabilizer titanium oxide and flow agent silica into a high-speed mixer and mix for 1 to 2 minutes. Filter the mixed materials thr...
Embodiment 2
[0030] Weigh the raw materials according to the following parts by weight:
[0031] Styrene acrylic polymer resin: 60g, magnetic powder iron oxide 35g, charge control agent chromium oxide 5g, polypropylene wax 2g, stabilizer titanium oxide 3g, flow agent silica 3g.
[0032] The preparation method is the same as in Example 1.
Embodiment 3
[0034] Weigh the raw materials according to the following parts by weight:
[0035] Styrene acrylic polymer resin: 60g, magnetic powder iron oxide 38g, charge control agent chromium oxide 4g, polypropylene wax 2g, stabilizer titanium oxide 4g, flow agent silica 4g.
[0036] The preparation method is the same as in Example 1.
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PUM
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Abstract
The invention discloses a copy toner. The copy toner is prepared from the following raw materials in part by weight: 56 to 60 parts of styrene acrylic acid polymerization resin, 35 to 40 parts of magnetic powder ferric oxide, 3 to 5 parts of chromic oxide serving as a charge control agent, 2 to 3 parts of polypropylene wax, 3 to 5 parts of titanium oxide serving as a stabilizing agent and 3 to 6 parts of silicon dioxide serving as a flowable agent. The toner of the invention is prepared by the following steps of: (1) mixing the raw materials in a low-speed mixing machine for 10 to 15 minutes, introducing the mixture into a mixing roll, mixing at a high temperature, extruding, standing and cooling; (2) after the materials are cooled, crushing the materials by using a rough crusher and grading the crushed materials into toner raw materials by using a jet mill; and (3) putting the raw materials prepared in the step (2), the titanium oxide serving as the stabilizing agent and the silicon dioxide serving as the flowable agent into a high-speed mixing machine for mixing and filtering the mixed materials by using a vibrating screen so as to obtain a finished product. The toner of the invention has higher environmental stability and does not produce bottom ash.
Description
Technical field [0001] The invention relates to a toner, in particular to a copy toner. Background technique [0002] At present, various copiers such as digital copiers and electrostatic copiers are increasingly used. The existing toners are generally made of resin, magnetic powder, charge control agents and other additives. However, the various toners are incompatible with each other, which causes the bottom gray to easily appear in the copying process after the ink is added. Therefore, it brings a lot of inconvenience to the user when the toner is added. Summary of the invention [0003] The purpose of the present invention is to provide a toner compatible with digital copiers and electrostatic copiers, so as to bring convenience to users. [0004] The present invention is realized as follows: The toner is made of the following raw materials in parts by weight: 56-60 parts of styrene acrylic polymer resin, 35-40 parts of magnetic powder iron oxide, 3-5 parts of charge control ag...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/097G03G9/083G03G9/087G03G9/08
Inventor 王军林许兴基张明仿荆晓光
Owner HEBEI FENGHUA HEAVY MECHANICAL & ELECTRICAL EQUIP MFG
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