https://www.avient.com/news/avient-expand-color-concentrate-capabilities-vietnam
For example, the use of recyclable CESATM IR additives, which enable black plastics to be identified for recycling, can reduce the environmental impact of dark colored packaging.
https://www.avient.com/news/specialty-polymer-solutions-avient-improved-durability-and-sustainability-healthcare-products-pharmapack-2023
The new range contains shades commonly used in medical devices: yellow, mid and dark grey, mid green, light and dark blue, white, and black.