Mas­ter­batch spe­cia­list of­fers the ide­al co­lou­ring for every plas­tic

The GRAFE GROUP, Blankenhain, has been a specialist in the black colouring of standard plastics for many years and has a broad portfolio of corresponding masterbatches. Based on these competencies, solutions are also being developed for more and more technical plastics and their corresponding applications, with the help of which brilliant black tones can be realized.

„In the PE/PP area, we offer a deep black for injection moulding, also known as piano black, which produces a depth of colour that can otherwise only be produced by soluble dyes in amorphous polymer structures. On customer request, the masterbatches can be combined in such a way that flowability and cycle time improve“, reports Danny Ludwig, Head of Product Management, Color & Functional Masterbatches and especially refers to applications in the automotive sector.

For applications in 3D printing, GRAFE also provides a black batch for PLA that is characterised by very good dispersion and homogenisation. „It is very well suited for filament extrusion and impresses with its excellent processability without agglomerates“, reports the head of product management. A masterbatch for PC processing, which is used in injection moulding, also has a very good colour depth and good dispersion quality.

For the production of staple fibres and in film extrusion, GRAFE offers a masterbatch that is suitable for black colouring of PET. „It has the usual market carbon black content of 30 per cent with very good dispersion“, so Ludwig. This is necessary in order to be able to colour fibres reliably. Very good carbon black and fibre quality are further special features of the product.

For PA processing, GRAFE has a wide range of carbon blacks or nigrosine available for black colouring. „The target group here is normal injection moulding applications, especially for automotive, but also technically very demanding components in the construction sector.