Nowadays, plastic waste sorting is done by automatic optical sorting methods with the majority of sorting equipment based on the reflectance of NIR wavelengths. 


Carbon black absorbs infrared light. For this reason identification via optical sensors is impossible. The result is that non-detected black and highly opaque coloured material is going to landfill or incineration.

W&R understands this issue and has developed a large variety of alternatives. We introduced NIR-detectable and sortable colour-masterbatch solutions. Through the use of specific pigment formulations, without Carbon Black, the NIR detectable masterbatches are made. In this way your endproduct can be made suitable for the right way of recycling and sorting.

We are able to offer you our “off the shelf” standard-range N.I.R-detectable masterbatches. These contain the most common colours in different shades like Grey | Terracotta | Brown | Taupe | Blue | Green

For your specific N.I.R.-detectable requirements we can always develop the best suitable formulation.

With our range of N.I.R.-detectable masterbatches we are creating a big step forward in one of our core values which is environmental sustainability and circularity. 

To be mentioned, our N.I.R-detectable BLACK-Masterbatches (which off course do not contain Carbon Black) are available and suitable for a variety of resins like PE, PP, PS and PET.


Our perception of the world around us is predominantly inspired by colour. Today, we are using more and more plastic materials in an increasing number of products and in as many different colours. In addition to our broad range of products, we develop masterbatches to meet the precise requirements of our clients application. 


Acting on fast changes in customer needs, manufacturers want to be able to anticipate when it comes to the raw materials they purchase and use for design, colour and additional properties in this dynamic industry.

All your documents in 1 place

W&R provides technical documents 24/7 available via your personalized W&R Portal.
You can look into or download the following up-to-date documents:

Technical Data Sheets
Material Safety Data Sheets
Food Contact Statements 

REACH/SVHC Declarations