Black Masterbatch Manufacturer for Film and Moulding Applications

Black masterbatch is widely used in the manufacture of plastic films and moulded products. It provides the black colour required by the finished product while also helping manufacturers meet the processing and performance requirements of different applications.

However, one grade will not necessarily work for every process. The choice of carrier polymer, carbon black level, colour strength and dispersion can all affect the end result. Manufacturers therefore need to choose a grade that matches both the polymer being used and the production method. A supplier with a broad range of black masterbatch products can make it easier to find a suitable option.

What this blog covers

This guide to black masterbatch for film and moulding applications covers:

What is black masterbatch?

Black masterbatch is a concentrated blend of black pigment, carrier resin, and, when required, other additives. Supplied in pellet form, it is mixed with a base polymer during manufacturing.

Masterbatch makes it easier to add pigment at a controlled level, helping to keep the colour even across the finished plastic product. Carbon black is often used because it produces a deep black colour and good opacity. Some grades can also help protect plastic from UV exposure, depending on how they are formulated and where they are used.

The right formulation depends on the job it needs to do. A black masterbatch that works well with one polymer or production method may not yield the same results with another, so the grade needs to be chosen carefully.

Why is black masterbatch important for plastic manufacturing?

Black masterbatch is used across many plastic manufacturing processes, not just to add colour but also to meet specific production requirements. The type and amount of carbon black in the formulation can affect the result. For example, a masterbatch used to produce thin plastic film may need different characteristics from one intended for thicker injection-moulded parts. Choosing a grade suited to the application can therefore help achieve the desired finish and processing performance.

A well-formulated black masterbatch can provide:

Black masterbatch for film applications

Plastic film production places specific demands on black masterbatch.

Manufacturers may need to achieve consistent colour and coverage while maintaining the required film properties and processing characteristics. The masterbatch also needs to disperse effectively throughout the polymer to minimise colour variation and other production issues.

Abbey Masterbatch produces several black masterbatch grades specifically suited to film applications. Its product range includes economical film grades as well as grades offering higher colour performance. For example, Abbey’s PE 91111 and PE 91211 grades contain 20% carbon black and are listed as high-colour, economical grades for film. PE 91500 contains 50% carbon black and is listed as a high-quality film grade.

Black masterbatch for moulding applications

Moulding processes have requirements distinct from film extrusion. Injection and other moulding applications can involve different polymers, processing temperatures, component thicknesses and appearance requirements. A suitable masterbatch therefore needs to be compatible with the base polymer and capable of achieving the required colour and dispersion during processing.

Choosing the right black masterbatch

Several factors should be considered before selecting a product.

1. Base polymer

The carrier system needs to be compatible with the polymer being processed. Abbey Masterbatch offers polymer-specific black masterbatch grades for materials such as polyethene, polypropylene, polystyrene, polyamide, and other thermoplastics.

2. Manufacturing process

The manufacturing process is an important factor when choosing a masterbatch. Film extrusion, injection moulding, sheet extrusion and compounding all place different demands on the material. A grade that performs well in film production, for example, may not give the same results when used for an injection moulding application. It is therefore important to select a masterbatch that suits both the polymer and the method by which the finished product will be made.

3. Colour strength

The required depth of black is also an important consideration. Higher tinting strength is useful for strong black appearance or high coverage, while economical grades suit applications where extreme colour strength is unnecessary.

4. Carbon black concentration

The amount of carbon black can differ considerably from one masterbatch grade to another. Abbey’s range includes grades with carbon black levels from 20% to 50%, depending on the product and its intended use. The right level is not simply a case of choosing the highest concentration available. It will depend on the depth of colour required, the recommended dosage, the polymer being processed, and the manufacturing method.

5. Dispersion and consistency

How well the pigment is dispersed can have a noticeable effect on the final product. Even distribution helps produce a consistent black finish, while poor dispersion may result in uneven colour, specks or other surface defects. Choosing a masterbatch from a manufacturer experienced with different polymers and processes can help ensure the grade is suited to the application and production requirements.

Black masterbatch for different manufacturing requirements

The requirements can vary depending on how the plastic product is used. A packaging film producer, for example, may focus on even colour, good coverage and reliable processing, whereas a moulding manufacturer may need a deeper black and compatibility with a particular engineering polymer. Products intended for outdoor use may require different properties than those made for indoor applications. Speaking to a specialist black masterbatch manufacturer before choosing a grade can help ensure the product is suitable for the polymer, process and end use.

Choosing a black masterbatch manufacturer for film and moulding

An experienced manufacturer can provide access to various formulations and help customers identify a grade based on their polymer, process, and finished-product requirements.

Abbey Masterbatch offers a broad range of black masterbatch grades for film, moulding and compounding applications, from economical film grades through to high-colour and jet-black formulations. With polymer-specific options and extensive manufacturing experience, the company can supply solutions for a wide range of thermoplastic applications.

Manufacturers looking for black masterbatch for film or moulding applications can speak to Abbey Masterbatch about the grades available. The team can advise on suitable options based on the polymer, production process and requirements of the finished product.

Frequently asked questions about black masterbatch

What is black masterbatch used for?

Black masterbatch is used to colour thermoplastic materials black. Depending on the formulation, it can also contribute properties such as opacity and UV resistance. It is widely used in applications including plastic film, moulded products and compounds.

Is black masterbatch suitable for film production?

Yes. Specific black masterbatch grades are formulated for film applications. Abbey Masterbatch produces grades for standard film, thin film, co-extrusion and mulch film applications.

Can black masterbatch be used for moulding?

Yes. Abbey Masterbatch supplies black masterbatch grades specifically listed for moulding and compounding, including products compatible with polymers such as PE, PP, ABS, SAN, PS, PA and PVC.

How do I choose the right black masterbatch?

Consider the base polymer, manufacturing process, required colour strength, carbon black concentration and the performance requirements of the finished product. A specialist manufacturer can help identify a suitable grade.

What is the difference between high-colour and high-jet-black masterbatch?

These terms refer to the level of colour strength offered by different masterbatch grades. High-colour products are formulated to produce a strong black finish, while jet black and high jet black grades are intended for applications requiring a deeper, more intense black. The best choice will depend on the finished product, the polymer being used and the manufacturing process.

Does Abbey Masterbatch manufacture black masterbatch in the UK?

Yes. Abbey Masterbatch manufactures its products at its facility in Ashton-under-Lyne, UK. The company has been producing masterbatch and pigment dispersions since 1984.

What polymers can Abbey’s black masterbatch be used with?

Abbey offers black masterbatch grades for a range of polymers, including LDPE, HDPE, PP, ABS, SAN, PS, PA and PVC. Compatibility varies between products, so the grade should be matched to the polymer and application.