At present most of the carbon powder production mainly by two ways, the early physical grinding method, its characteristic is directly grinding carbon powder, toner particles is irregular, the other is a currently popular chemical synthesis method, the carbon powder shape is spherical, more even.
The main component of carbon powder is not carbon, but mostly consists of resin and carbon black, charge agent, magnetic powder and so on. Toner by high temperature melting into the paper fiber, resin will improve font gloss and waterproof, resin after high temperature at the time, will inevitably produce waste gas, the original consumables vendors in developing carbon powder, as far as possible reduce the powdered carbon emissions, but is still unable to avoid. In addition, laser ionized air can produce ozone. The main components of carbon powder of laser printer such as cf410x includes: f-fe3o4 crystal powder (PLGMENT) : 20-30%; styrene copolymer: 50-60%; Charge regulator CCA: 10-20%; Liquid SiO2, etc.; Surface modifier polyethylene/polypropylene paraffin wax. The particles, made of these compounds, are about 6-8 microns in size, very delicate and even. Besides grinding method and chemical synthetic method, carbon powder with the progress of technology and continuously improve production technology, there is a way to use the zero bounds fluid melt-blown technology to produce carbon powder, spherical carbon powder particles can be obtained, the advantages of this approach is that the rest of the material can be reused, not much emissions, relative environmental protection. Grinding method of the production of carbon powder, by contrast, although the cost is low, but uneven toner particles, irregular shape, so the utilization rate of carbon powder may have certain discount, and in paper form a handwriting was not as clear as homogeneous spherical carbon powder and fine. There is a link in the chemical synthesis process to dry the carbon powder, so the production cycle will be relatively long and the production cost will increase. In the future, if there is an updated technology that can produce carbon powder such as the toner in hp toner cartridges at very low cost, and can obtain uniform and delicate spherical carbon powder, it will be favored by the carbon powder producers.
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