Using specific components together from Borealis, Avient consistently produces wide range of color options for PCR plastic for rigid packaging without having to add more color; if color must be added, the addition of concentrate is low, around 2%: study

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October 21, 2022 (press release) –

  • Insights obtained in joint application study help customers take full advantage of the broad range of colour matching options for post-consumer recyclates (PCR)
  • Use of grades from the Borealis Borcycle™ M portfolio in tandem with Avient Colour formulations achieves desired colour effect with low levels of colour addition
  • Value chain collaboration in the spirit of EverMinds™, the Borealis Circular economy collaboration platform, helps realize the promise of plastics circularity

Borealis, one of the world’s leading providers of advanced and sustainable polyolefin solutions and a European front-runner in polyolefins recycling, and Avient Corporation, a premier provider of specialised and sustainable material solutions and services, today announced results of a new joint study. The study addresses the challenges of colour matching in PCR for rigid packaging, offering options that can create global colour consistency, quality, and circularity. In 2018, Borealis launched EverMinds™, an umbrella platform uniting its activities and initiatives aimed at advancing action on circularity. Bridging from the EverMinds™ platform, Borealis and Avient recently completed a joint application study that investigated how to optimise colour matching when using post-consumer recycled material (PCR) in rigid packaging applications. Insights obtained from the joint study will help value chain partners and customers take advantage of the wide range of colour options enabled by the use of Borcycle™ M compounds (mechanically recycled polyolefins) and Avient colour solutions, for even the most sophisticated application requirements.

Why Borealis and Avient undertook this study

In order to enhance the sustainability of rigid packaging, the industry is seeking to find ways to incorporate higher amounts of PCR into its products without compromising on functionality or incorporate higher amounts of PCR into its products without compromising on functionality or shelf appeal. Keeping in mind that colour is a key element of a pleasing appearance, the intrinsic colour matching properties of recyclate are more limited versus virgin polymers. In addition, the market availability of PCR in light and natural tones is equally limited. Moreover, colouring processes for dark recycled material can be challenging due to the need for high amounts of colorant to overcome the PCR base colour.

Key takeaways from the research

The joint study determined that using specific components together from both companies consistently produced a wide range of colour options for PCR without having to add more colour. Those components include 100% recycled polypropylene (rPP) from the Borcycle M portfolio in tandem with Avient’s PCR Colour Prediction Service. Plus, the colour formulations which have been specifically designed for use with PCR without disturbing detectability in the sorting process.

Another key discovery from the study: If colour must be added to the base material to achieve the desired colour, the addition of colour concentrate is low (around 2%). The higher translucency of Borcycle M compounds is one facilitating factor in better colour matching thanks to the materials’ good light transmission and colour absorption. The study also demonstrated that using Borcycle M grades along with Avient’s OnColor™ near infrared (NIR) detectable colorants produces a recyclable, neutral black which enables better automatic sorting for recycling. This solution helps to prevent downcycling of darker and black PCRs based on their colour, and maintains their value in the recycling stream.

“We’re pleased to be able to use the findings of this joint study to assist our value chain partners and customers in making informed decisions about the best colour matching options for their own rigid packaging applications,” says Peter Voortmans, Global Commercial Director Consumer Products at Borealis. “The more aesthetically appealing the pack, the more likely it is that the consumer will choose the more circular option. At Borealis, this is what we mean by re-inventing essentials for sustainable living.”

“A cornerstone of our sustainability strategy at Avient is to use material science and our design expertise to enable our customers’ sustainability goals,” explains Jan Sültemeyer, Global Innovation and Sustainability Manager at Avient. “This collaborative study with Borealis is one way in which we can transfer our know-how to our value chain partners to close the loop on plastics circularity.”

K 2022 will take place from 19 to 26 October 2022 in Düsseldorf, Germany.

We invite you to “Innovate Collaborate Accelerate” together with us by visiting Borealis and Borouge in Hall 6 at Stand A43.

Avient welcomes visitors to their booth G10 in Hall 8A and its Collaboration Café. Please also visit Avient’s press hub for further information on their content for K 2022.

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