Improving Sustainability of White Opaque PET 

OmyaPET meets the high requirements for additives in PET processing.

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POLYMERS |Markets |Solutions |Library |BOPETThermoforming3D PrintingStretch Blow Molding

Sustainable and Cost-Effective Solution for White Opaque PET

Thanks to the functionality of OmyaPET, excellent opacities are achieved in production processes such as Stretch Blow Molding (SBM) and Biaxial Oriented Polyethylene Terephthalate (BOPET). For e. g. UHT milk bottles require high UV protection to secure long shelve life and to protect vitamins and thanks to OmyaPET the packaging requirements can be achieved at lower carbon footprint and with lower costs to produce.

OmyaPET Offers a Variety of Benefits

  • Reduced costs due to the functionality of OmyaPET
  • Increased productivity, e. g. faster preform heating in SBM
  • Natural opacifier that meets the European requirements for food contact
  • Improved Sustainability due to low carbon footprint

A Wide Range of Applications

OmyaPET can be used in a variety of applications like stretch blow molding, BOPET, thermoforming as well as 3D printing/ PETG.
Polyethylene Terephthalate (PET) is because of its excellent recyclability increasingly used for PET milk packaging. Nevertheless, there are challenges due to the high TiO2 content in mono-layer bottles or the black content in multilayer bottles. OmyaPET is a new, environmentally friendly and cost-efficient solution for the production of white opaque PET bottles, e.g. for UHT milk and fresh dairy drinks. Thanks to the functionality of OmyaPET, excellent opacity can be achieved in the stretch blow molding process and the requirements for UHT milk bottles using OmyaPET are met by adding a small amount of titanium dioxide.


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OmyaPET Reduces the Carbon Footprint by up to 15%

Assuming 10% TiO2 is used in production, as standard, and 7% is replaced by OmyaPET, the carbon footprint of the raw material mix is reduced by 15%.

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In the production of white opaque biaxially oriented polyethylene terephthalate (BOPET) film, it is important that the minerals have good dispersibility to avoid filter clogging and film breakage. Originally, minerals with a very high specific density and carbon footprint were used. However, with OmyaPET, films with a lower density and improved carbon footprint can be produced without compromising film manufacturing process performance. Thanks to OmyaPET, it is possible to produce BOPET films with identical opacity but at lower density.


PET requires nucleation in C-PET thermoforming or foamed sheet production to optimize the process and achieve specific properties. While some minerals such as talc narrow the processing window, OmyaPET allows processing over a wider temperature range. When thermoforming PET with OmyaPET, the articles become opaque and less pigmentation is required. OmyaPET has also an excellent thermal diffusivity, which improves heating and cooling during thermoforming.


OmyaPET has an excellent heat diffusivity, which improves heating and cooling during the printing process.
Items printed with OmyaPET have lower shrinkage and appear more opaque and natural than unfilled PETG.


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