Emulsion aggregates toner
Emulsion Aggregate Toner (EA-Toner) is a special toner that was introduced by Xerox in 2001 and introduced in 2002. It should ensure a sharper and more even print image and lower consumption.
Manufacture and properties
Traditionally, color dry toner is produced in which the raw materials are fused together and then finely ground. However, grinding leads to a very variable particle shape and size. EA toner is built up chemically, the texture can be controlled during manufacture via the temperature, time and pH of the reaction mixture, which leads to a more uniform shape and less dispersion in the size of the particles. The particles produced in this way are uniformly small, which means that the typeface is sharper, the print quality with fine lines is better and the service life of the fuser unit is increased.
Due to the more even application of the toner, the required ink layer density of EA toner is only around half as high as that of conventionally produced toner and more comparable to that of offset printing .
EA toner can only be used on specially developed machines and is only available for Xerox and Fuji Xerox machines .
Development and launch
Chemically built toners have been around since the early 1990s. B. used by Oki or Canon . Production there was carried out using the microsuspension polymerisation process, but the EA process offers a higher degree of malleability of the particles. In 1993, Xerox began developing the EA toner, and in 2001 the EA toner was introduced. The first EA toner capable devices were the office devices Fuji-Xerox Docucolor 1632 and 2240 in 2001, and in 2002 the process was introduced with other machines. In 2019 there were EA printers in the Versant, Nuvera, Iridesse model series and several copiers.
proof
- EA dry toner: new particles to improve digital printing on a forex-graphic basis , Octopus Office
- Xerox: New Invention Marks Color Toner Technology Milestone , Channel Partner, August 3, 2001