Loko u nghenisa swirhendzevutani swa polyester PET, u fanele ku ehleketa hi vukheta hi swipimelo swa khwalithi, leswaku muphakeri u tshembheka ku fikela kwihi, na swilaveko swa xithekiniki leswi fikelelaka swilaveko swo hambana swa ku paka. Nkongomiso lowu lowu heleleke wu vulavula hi swilo swa nkoka leswi vaxavisi va swipaci va faneleke ku ehleketa ha swona loko va ri loo