Model has been designed to provide real-market resin performance evaluation.
The PET Resin Association (PETRA), New York City, has released a recyclability-assessment model that the association says includes testing and evaluation criteria for special-use and innovative resins having a low market presence.
The model calls for PETRA to provide industry-representative control resins to testers using the model, which commits PETRA to funding annual third-party testing and monitoring of the PET resin stream once the model is widely used.
PETRA officials say its Recyclability & Innovation Model was designed to combine elements of existing European and North American recyclability initiatives without sacrificing testing benchmarks or compromising innovation.
“We believe the PETRA Model will increase both innovation and recyclability testing by focusing on real-market resin performance and the evaluation needs of producers, brand owners and recyclers,” says Ralph Vasami, executive director of PETRA. “Confirming the viability of promising resin variants is vital to advancing PET resin science and the use of recycled material.”
The voluntary PETRA Model allows for testing innovations levels of 2 percent and 10 percent, which encompass most of the new PET resin variants. It includes criteria for testing at the more robust levels of 25 percent and 50 percent.
By comparison, current U.S. recyclability guidelines restrict resin testing to concentrations of 25 percent or 50 percent to minimize processing challenges to the broadest possible range of recyclers. PETRA says that type of approach creates artificially restrictive barriers that can preclude the introduction of resin improvements and make product differentiation difficult.
“The PETRA Model provides a forward-looking means of assessing recyclability that integrates the need for continued innovation with stringent resin testing and monitoring to quantify potential changes in recyclability,” adds Vasami. For more information about the PETRA Recyclability & Innovation Model, visit www.petresin.org/recyclability-innovation.asp.
PETRA is the industry association representing North American producers of PET resin. PETRA is dedicated to promoting the benefits and value of PET resin, providing accurate technical and scientific information about PET, and serving as the industry's authoritative voice on issues impacting the manufacture and use of PET.