The basic composition of the masterbatch:
1. Pigments or dyes
Pigments are divided into organic pigments and inorganic pigments
Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, fast bright red, macromolecular red, macromolecular yellow, permanent yellow, permanent purple, azo red and other commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red, iron oxide yellow and so on.
2. Carrier
It is the matrix of the color masterbatch. The special masterbatch generally chooses the same resin as the product resin as the carrier, and the compatibility of the two is the best, but at the same time, the fluidity of the carrier should also be considered.
3. Dispersant
To promote the pigment evenly dispersed and no longer condensed, the melting point of the dispersant should be lower than the resin, and has good compatibility with the resin, and the pigment has a good affinity. The most commonly used dispersants are: polyethylene low molecular wax, stearate.
Step 4: Additives
Such as flame retardant, brightening, antibacterial, antistatic, antioxidant and other varieties, unless the customer requests, under normal circumstances, the color master does not contain the above additives.