The production of black Masterbatch is particularly challenging. The black color is achieved by the incorporation of carbon black. Processing problems arise because soot particles adhere together to form particle lump-like aggregates.
If numerous aggregates self-assemble, they form so-called agglomerates. As it goes with most applications of Masterbatches primarily to a uniform dispersion, agglomerates are undesirable because they block spinnerets and filters. The IKV has developed an innovative technical process in which each individual carbon black particles is coated with the respective polymer. A uniform dispersion of carbon black is achieved in the Masterbatch and, furthermore, it prevents the degradation of the polymer.