When I was a child, I always heard adults say, don't bite a pencil, otherwise you will be poisoned by lead! But in fact, the main component of the pencil lead is graphite, not lead, and we will not be poisoned by taking two more bites.
There are many "names" in life that do not correspond to "real" names, such as pencils do not contain lead, the Dead Sea is not a sea... Judging the composition of a thing by name alone will not work. So the question is, is the printer's toner simply made of "ink"? Let's take a look at what toner looks like!
In China, the origin of ink is very early, and there are ink writing on the oracle bones of the Shang Dynasty, and the ink has been tested by professionals as black carbon. So Chinese ink is also called carbon ink, and toner is also called toner. Is the printer's toner made of "ink"? In fact, it means that it is not made of "carbon".
A closer look at its ingredient list will find that it has resins, carbon black, charge agents, external additives, etc., among which carbon black acts as a coloring body, acts as a dye, and has the function of adjusting the color depth. Strictly speaking, resin is the main imaging substance of toner and is the main component of toner.
In real life, the production methods of toner are divided into two types: physical grinding method and chemical polymerization method.
Among them, the toner processing industry uses a large number of crushing methods, which can produce toners suitable for dry electrostatic copying: including two-component toner and one-component toner (including magnetic and non-magnetic). This method requires a rough mixture of solid resins, magnetic materials, pigments, charge control agents, waxes, etc., heating to melt the resin, and at the same time evenly dispersing the non-melting components into the resin. After cooling and solidifying, it is crushed and classified.
With the development of printers, the requirements for toner are getting higher and higher, and the production of toner is more refined. Chemical polymerization method is a fine toner technology, as early as 1972, the first case of polymerization toner special li appeared to the present, the technology has become more and more mature.
It can manufacture toner with a lower melting temperature, which can meet the requirements of modern technology for energy saving and environmental protection. By adjusting the dosage of dispersant, stirring speed, polymerization time and concentration of solution, the particle size of toner particles is controlled to achieve the effect of uniform composition, good color and high transparency. The toner produced by the polymerization method has a good particle shape, a finer particle size, a narrow particle size distribution and good fluidity. It can meet the requirements of modern printing technology such as high speed, high resolution and color.
Post time: Mar-28-2023
