Wednesday 27 January 2016

Making Process of Masterbatches and its Uses

Making of a masterbatches is a two way process. First is gathering of ingredients and then mixing them by heating them to produce homogenized pellets.  Generally, the addictives are made by pre mix method by using high or low speed mixers, which is then compounded on roller mills, single or twine screw extruders and kneaders. The distribution and breaking down of the addictives throughout the carrier are essential. The processing of masterbatches depends on several key elements like quality of raw material, mixing quality and compounding plant.

A masterbatch can be introduced to the processor base of a polymer in a number of ways. In the most successful method masterbatches are added to the polymer stream immediately directly before processing. This direct technique is used in both volumetric and gravimetric dosing. In volumetric technique, low capital investment is required but it involved calibrating every time the color or batch is changed, which depends on the bulk density of the material. In the gravimetric technique, plant is expensive but the dosing will be accurate.

Opaque requirement and color thickness affect the dosages. The right loading for the transparent colors can be tricky, because any imperfection is clearly visible. Sometimes, manufacturers go for weaker masterbatches, so that the demand on the dosages and homogenization is reduced.

Injection moulding, profile extrusion, film extrusion, fibres, blow moulding, sheet extrusion, calendered sheet processes use masterbatches. Masterbatche offers an easy way of adding color or performance enhancing addictives to natural polymers. This technique has several benefits apart from cost saving and they are,  reduction in cleaning cost , less stock holding of compounded material and optimum dispersion . Some manufacturers make masterbatches of highly durable polymer addictive. They are used in anti block, UV protection, antioxidant, anti fog, and for processing aid properties. Masterbatches are also made for mulch film, green house film, shade nets, silage and drip irrigation system.


Masterbatches manufacturers make black masterbatches, which are based on PS, PV, EVA and universal polymer. These products contain selected carbon blocks to give properties like high jetness and ultra violet ray protection. Because of its performance, cost effectiveness and coloring ability, carbon black is widely used pigment.  Masterbatches Manufacturer & Supplier are now delivering Special Effects Masterbatches for producing glittering or metallic effect in the final product. To achieve this effect the metallic flakes are added to a traditional solid coloring system. These are mainly used in injection moulded items and cosmetic tubes. Black Masterbatches Manufacturer in India use special addictives and processing aids are also used so that carbon black gets uniformly dispersed in carrier resin, to give optimum performance in the final applications.  Customization process is now increasingly used by all manufacturers to deliver the best solution possible to clients in various industries.  The demand for Pearlescent and Fluorescent Masterbatches is also growing these days for various plastic products. 

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