Widely used in product packaging, white masterbatch is a highly filled compound of titanium dioxide (TiO2), polymers and additives. The titanium dioxide creates the desired product opacity, while the choice of resins, TiO2 grade, fillers and extenders determines the quality and compounding costs. Product applications and performance are also a significant factor in formulation and costs, for example, meeting the strict food packaging standards for the Food and Drug Administration (FDA).
The FCM™, Farrel Continuous Mixer offers superior compounding for abrasive white masterbatch while providing excellent dispersion and thermal stability. From highly demanding applications, such as extrusion coating, to those that are more economical, Farrel Continuous Mixers provide the low processing temperatures and high fill levels required for profitable white masterbatch compounding.
Titanium dioxide (TiO2) is naturally occurring and is generally sourced from ilmenite, rutile and anatase. Compounding TiO2 with a polymer carrier and other additives creates the white masterbatch. Common polymer-carriers for the application include:
Linear low-density polyethylene (LLDPE) MFR 1‑3
High-density polyethylene (HDPE)/polypropylene (PP)
Low density polyethylene (LDPE)/LLDPE MRF 20-50
PP MFR 10‑20
Farrel Continuous Mixers are designed to address the many challenges of white masterbatch processing including:
Common applications for white masterbatch include:
|250 - 300
1,000 - 1,200
|500 - 700
2,000 - 2,800
|1,000 - 1,200
4,000 - 4,800
|2,200 - 2,500
8,000 - 10,000
|2,500 - 2,700
10,000 - 10,800
|4,000 - 4,700
16,000 - 18,800
|7,000 - 7,500
28,000 - 30,000
*Based on 4000 hrs per year.