The use of liquid color masterbatch in PET preform production offers three immediate advantages: significantly lower addition rates compared to solid masterbatch, uniform dispersion, and convenient color changeovers. These directly impact production costs and product quality.

Lower Addition Rate – Better Cost Efficiency

Solid masterbatch typically requires 2% to 4% addition to achieve the desired color depth. Under the same coloring effect, York liquid color masterbatch needs only 0.03% to 1.5% — one-tenth to one-fifth of the amount used with solid masterbatch.

Lower addition reduces colorant procurement costs and introduces fewer foreign carriers into the base resin. The material properties stay closer to neat PET, which benefits subsequent stretch‑blow molding and improves recyclability.

Uniform Dispersion – Better Color Development

The dispersion ability of a colorant in PET directly determines the color consistency of preforms and batch‑to‑batch stability.

Liquid color masterbatch is a pre‑dispersed system. It does not rely on screw shear during processing and does not form pigment agglomerates. This eliminates the source of color spots, streaks, or shade variations caused by poor dispersion.

Liquid color masterbatch is injected through automated dosing equipment at a precisely controlled rate. The amount of pigment per batch is stable, resulting in consistent color development. This is especially critical for high‑volume production.

Simplified Production – Higher Efficiency

Liquid color masterbatch requires no pre‑drying. It can be added directly, reducing preparation time and energy consumption.

It is fed automatically through a metering system, eliminating manual weighing and mixing. The workshop is free from pigment dust, and there is no need to clean up scattered masterbatch pellets.

For multi‑product, small‑batch production, the value of simplified production is clear — fewer manual steps, lower error rates, and cleaner shop‑floor management.

Functional Compounding

Liquid color masterbatch can be used together with functional additives such as acetaldehyde scavengers and light barrier agents. By compounding these additives into the liquid color system, coloring and functional performance are achieved in one step, without adding extra workstations or equipment. 

This ensures stable packaging performance while delivering the brand’s visual identity.

About York

York New Materials was founded in 2008 and is the earliest company in China focusing exclusively on liquid color masterbatch. PET preform liquid color masterbatch is one of its core product lines. Free on‑site trials are available.