The masterbatch is a plastic colorant which is well dispersed by a high proportion of pigments or additives and a thermoplastic resin. The selected resin has good wetting and dispersing effect on the colorant and has good properties with the coloring material. Compatibility

this production line suitbale for pe pp color master batch extrusion and pelletizing .

Related pelletizer for various plastic compound

High concentration Co-rotating parallel color masterbatch extruder

Haisi extrusion provides advanced pelletizing line for all kinds of color masterbatch.

We design the color masterbatch extruder according to the output, formula and final application as your request.

Applications of our color masterbatch extruder: 

Color MB is used for any polymer and all kinds of product.

Better dispersion and higher output

For TiO2 white masterbatch, carbon black masterbatch and color masterbatch making.

Simple machine operation

Long lifetime of screw and barrel parts

Fast color changes

Base polymers: PE, PP, PS, EVA, PET, PA, PC, PMMA, ABS, TPE, POM, PEEK, etc.

Technical parameter of color masterbatch extruder:

Premixing of color masterbatch extruder:

In the premix process, all masterbatch raw material components are first mixed in a mixer. Then, normally via a volumetric feeder, this mixture is fed into the twin screw extruder where it is processed.

Also you can choose loss-in-weight feeder for more precise and gentle feeding.

1.Water strand pelletizing line for color masterbatch extruder

It is the most commonly used and economic method for color masterbatch making.

Application:

Incorporation of Fillers: Caco3, Talc, TiO2, carbon black,filled PE, PP, or EVA, etc.

High Concentration Color Masterbatches: PE, ABS, PS, EVA, PP,etc. with high concentration of pigments and other processing aids.

Masterbatches with Flame-retardants: PE, ABS, PS, EVA, PET, PP, etc. with flame retardants and other additives.

2. Water Ring pelletizing line for color masterbatch extruder

Water ring granulation can be applied to formulations with large differences in melt characteristics. On the other hand, the water ring cutting have a shorter residence time in the water, and the moisture content after the dehyddrator and the vibrating screen is less than 0.1%, and no additional drying is required.

Application:

PE, EVA etc. Filled with CACO3,talc,TIO2,carbon black etc.
Color concentrations of PE,ABS, PS,EVA,etc;
Flame retardant master batches of ABS,PS,EVA,etc;
Master batches with PE,PP,PS,etc carriers for degradation applications.

3. Underwater pelletizing line for color masterbatch extruder:
For more output: the strands go into the pelletizer automatically by the water flow, even the strands break during changing the filter. So there will be almost no waste during the manufacturing process.

Underwater pelletizing system also used to handle micro pellets making with a size of  ≤ 1mm.

Characteristics of color masterbatch extruder：

*TSE series color masterbatch extruder use innovated design of heater tightened style, it insures high efficiency of heat transfer and high longevity of heater.

*TSE series color masterbatch extruder has various modes of pelletizing, such as water-cooling strand machine, air-cooling pelletizing machine, water-ring pelletizing machine, under water pelletizing machine etc.

*The screw is made of high tool steel 38 CrMoALA or W6Mo5Cr4V2 by special heat-treatment, which is possessed with high corrosion-resistant and high functions.

*The screw configuration, barrel setup, L/D or mode of feeding and venting, screen changing, way of granulating, and the control mode can be optimally adjusted according to different materials properties and requirements in consideration of the versatility in each general applications.

Color Masterbatch Production & Twin-Screw Extrusion: Frequently Asked Questions

Q1: What exactly is a "color masterbatch"?

A: A color masterbatch is a highly concentrated blend of pigments or dyes that have been perfectly dispersed into a "carrier resin" (such as PP, PE, PS, ABS, or PET).

Instead of handling messy raw pigment powders, plastic manufacturers simply add a small percentage of these masterbatch pellets to their raw plastic during production. It is a much cleaner, more precise, and highly efficient way to color plastics for industries like automotive, packaging, and electronics.

Q2: Why are twin-screw extruders essential for producing masterbatch?

A: The quality of a masterbatch depends entirely on how well the pigment is dispersed. Standard single-screw extruders simply cannot provide the necessary mixing power.

Co-rotating twin-screw extruders are the industry standard because they offer:

• Intense Mixing: Powerful dispersive and distributive mixing capabilities.

• Precise Control: Strict control over shear forces and residence time inside the barrel.

• Stability: Highly stable temperature and pressure profiles, alongside accurate feeding of lightweight powder pigments.

Q3: How does a twin-screw extruder turn raw pigment into masterbatch pellets?

A: The production process happens in four highly controlled stages inside the machine:

1.Accurate Feeding: Pigments, the carrier resin, and any additives are precisely fed into the extruder using gravimetric or volumetric feeders.

2.High-Shear Dispersion: Specially designed screw elements apply targeted shear and kneading forces. This smashes pigment agglomerates (clumps) and distributes the color uniformly at a microscopic level.

3.Filtration: The fully mixed melt passes through a melt filter or screen changer to remove any impurities.

4.Pelletizing: The molten masterbatch is pushed through a die and cut into uniform granules, ready for easy storage and downstream dosing.

Q4: How do masterbatch pellets work in the final plastic product?

A: When a manufacturer is ready to make the final product (like a plastic bottle or car dashboard), they mix the masterbatch pellets with their base, uncolored resin. During injection molding or final extrusion, the masterbatch melts and the concentrated color disperses evenly throughout the final polymer. Manufacturers can easily adjust the color shade or intensity simply by changing the masterbatch dosing rate.

Q5: What are the main benefits of producing masterbatch with a twin-screw system?

A: For companies producing masterbatch, utilizing a high-quality twin-screw extrusion line provides several massive advantages:

• Zero Color Variation: Uniform dispersion guarantees excellent color consistency from batch to batch, without streaks.

• Reduced Pigment Costs: Because the twin-screw system breaks down and distributes the pigment so efficiently, you need less raw pigment to achieve the desired color strength.

• Formulation Freedom: Operating your own compounding line allows you to develop, adjust, and protect your own proprietary color formulations in-house.

• Reliable Operations: Controlled processing parameters ensure high repeatability and stable, scalable production.

The Machines to Produce Color Masterbatch provide precise mixing, dispersing, and pelletizing of pigments and additives into polymer carriers, ensuring vibrant color, consistent quality, and high production efficiency.

The Produce White Masterbatch Extruder precisely disperses TiO₂ and additives into polymer carriers, ensuring bright, uniform white masterbatch with stable processing performance.

NANJING HAISI is professional manufacturer of carbon black masterbatch production line，extruder for color masterbatch. If there is anything else we can do for you, please always feel free to contact us.