U.K. groups say new black pigment allows for NIR sorting Published: March 31, 2017 Updated: May 31, 2017March 31, 2017 by Jared Paben For near infrared sorters, black as a color may not be the problem so much as the type of black pigment used. Continue Reading Posted in News, Technology Edition | Tagged black plastics, challenging materials, packaging, PRF, sortation, technology |