Page 35 - New Cloth Market November 2022 Digital Edition
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Strategies for Removing Chemical Finishes from Post-Consumer Outdoor Fabrics






























           *calculated on the basis of calibration lines       *calculated on the basis of calibration lines

                                                              -  BCA (combination of acid/alkaline hydrolysis and chem-
                                                                ical/mechanical washing)
                                                              -  UV + BCA (combination of dry and wet processes) were
                                                                performed on two kinds of post-consumer acrylic fab-
                                                                rics:

                                                              were performed on two kinds of post-consumer acrylic fab-
                                                              rics:











          This process led to excellent performance, in terms of
          wettability, of both fabrics, thus providing almost "cleaned"
          acrylic fabrics to be re-used for environmentally friendly
          finishing.
          Perfluorocarbon extraction (UNI CEN/TS 15968:2010)









         PFCs extraction data (< 1 ppm) confirmed the efficacy of
         the combination of dry and wet processes in the finishing
         removal from acrylic substrates.
         Finishing Removal from Post-Consumer Fabrics
         The selected combination of treatments:

         -  B (acid hydrolysis)


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