Copy toner

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...

AI Technical Summary

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.