White masterbatch

We have been customizing the products according to our customers’ specific needs.  Important factors such as: concentration, tone, consistency with other materials used in the formulation (the MFI of the produced white masterbatch and the polymer base of the masterbatch are adjusted according to customer’s application).  Through post production tests, we make sure that our product has excellent dispersion and opacity features.

White masterbatch is the most commonly used masterbatch in the world and it is abundantly used in in plastic industry. This masterbatch is produced using different bases.  Besides providing white color, it has effect on optical properties of the final product.

White masterbatch contains medium sized titanium dioxide particles which has high reflective index, this results in good whiteness and hiding power. These properties make this additive a good choice for packaging and coating industry.  For additional whiteness and hiding power, the titanium dioxide content has to be increased.



Optical brightener

The optical brightener additive is one of the commonly used addivies in plastic industry for improving the appearance of the plastic products.

Optical Brightener (also known as Fluorescent Whitening) agent masterbatch absorbs light in the UV spectrum and emits light in the blue region of visible spectrum to yield a brighter and fresher appearance.

It can be used for reducing the yellowness inherent in plastics (which is increases in heating or reheating processes such as recycling) or the natural yellowing process which happens over time.  Also, it is used for improving the color. It also makes the plastic look whiter and brighter.  The mentioned properties, make optical brightener additive an excellent and necessary choice for applications were the appearance of the final plastic product is important.



Anti-block Additives

Anti-block additives are often used in film application for preventing blockage and easy and efficient separation of the films.  The use of Anti-block additives are important in preventing blockage in film applications where high coefficient of friction is necessary.  Anti-block additives together with slip additives can have synergetic effect in reduction of coefficient of friction and blockage reduction.



Process aid additive

Process aid additives are used for improving the processability in various plastic processes such as film (blown or cast) and injection.  These additives produce a thin coat on the metallic surfaces of the die which results in less friction between molten polymers and the metal surfaces.  In other words it lowers the melt viscosity and reduces the stickiness of the polymers to the surface of the die.  One of the important benefits of process aid additives is reduction of surface defects, such as shark skin and melt fracture.  Also it reduces the melt pressure during polymer processing; this will result in possibility to increase the production rate and also reduce the energy usage.

Use of process aid is advised when good surface quality and appearance is needed. For polyethylene applications, where high density polymers and linear low density polymers are used, the utilization of the process aid is highly recommended.


Slip additives

The Slip additives are used for reducing the friction between the films and also between film and converting equipment. This improves the movement through the extrusion line and also down stream packaging processes.  Slip additives is sometimes used instead of anti-block additives specially when high clarity of the film is required and lower coefficient of friction does not cause any problem.

Both fast migration (oleamide based) and slow migration (erucamide based ) slip additives are produced in Ehda polymer.