Masterbatch with the economic developments of countries, tremendous effort has been involving in the research and development of plastic materials and colourings. Today, the available choices of colouring materials are very broad and with different kinds of colours and categories.

The major colouring materials include:
- Masterbatch
- Pigment
- Colour Sand
- Pre-colour
- Liquid colourant

Nevertheless, masterbatch has the best overall performance among the other alternatives.

Masterbatch is a new development in recent years. It is a polymer with high concentrated colourants contained in the resin homogeneously. When added with different additives and materials, various types of masterbatch could be produced, such as anti-static masterbatch, heat resistance masterbatch, filler masterbatch, conducting masterbatch, anti-bacterial masterbatch and others with agriculture purposes.

Masterbatch is mainly composed by colourant, carrier and dispersing agent:


Colourant: It is the major ingredient in the masterbatch and is selected according to the particular nature of plastic.
Carrier: It allows colourant distribute more evenly and provides the pellet shape for the masterbatch.
Dispersion Agent: Its main function is to moisture the surface of the colourants, thus allowing better dispersion and stability inside the resin. In general, dispersing agent is a polyethylene wax.


Today, the most common scale of masterbatch is 4%, which means for 1 kg masterbatch, 25 kg resin can be coloured. Or, other scales can be used according to a specific need. Masterbatch is simple to use: with a right amount of masterbatch mixed with the plastic material in the mixing machine for around 3 minutes, and getting dried according to the requirements, the material will be ready to be directly processed. If suitable carrier and additive are used, masterbatch could be applied in various processed, e.g. blow moulding, injection, extrusion and etc.

Masterbatch not only brightens up the plastic materials with miscellaneous range of colours, it also has other advantages:

- Stability, high chance of preserving the original colour
- Fast colour change
- Environmental friendly
- Good dispersion
- Less effect on the resin properties
- Low scrape rate
- Lower cost (when comparing with compounding)

In today’s highly competitive market, various plastic-consuming industries, in particular the home appliances industry, are completed fiercely and globally as more international firms are trying to grab the opportunities which would be offered by China after joining WTO. In order to stay competitive, resources must be chosen very carefully and with the advantages of masterbatch, it is not hard to understand why it is getting popular.

Major products include:
- Tailor-made colour masterbatch
- Quali Black Masterbatch
- Quali White Masterbatch
- Quali Fibre Masterbatch
- Marble effect
- Masterbatch for film

For further information, please e-mail to: dg.marketing@nhh.com.hk.