The triboelectric properties of magnetic carriers for xerography in relation to the nature of the polymer used
Polimery 1997, No 2, 100
The xerographic carrier is a particulate material composed of a magnetic core surrounded by a polymer. Two types of magnetic materials, magnetic oxides and ferrite, and nine polymers were studied in the carrier preparation process. The carriers produced with the magnetic oxides had the higher absolute triboelectric charge than those obtained with ferrite, but the latter showed better service properties and could be used in two-component xerographic developers. On the other hand, the large electrostatic charge and the high degree of comminution render the former carriers suitable for the production of single-component color xerography developers. The triboelectric charge of the carrier was also studied in relation to the nature of the polymer applied. A method was developed top repare carrier grains of desired spherical shapes and liquidity.