Frederic Noelle of Rieter Perfojet described trials with wipes substrates where PLA had replaced the polyester. Old data from Courtaulds (circa 1990, now rebadged "Lenzing") showed how lyocell, viscose and cotton degraded in a sewage farm and old data from Cargill-Dow showed how PLA degraded after pre-hydrolysis when wipes disappeared in 60 days. Without prehydrolysis PLA (poly lactic acid derived from corn) does not biodegrade.
Another paper on this subject is available on the main site.
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