Cleaned a rug this morning that's been in her attic got two years cleaned up great just has some waves in it from being rolled up will this come out in time or as it tries ??
If if does not dry flat after a few day have them roll it up backwards/inside out for a few days.
If that don't work take it to a rug washing plant and have them block it..and for now on always warn of cute possibility so you are off the hook when it happens. Which is pretty often.
Are you guessing that it is nylon?
Most curlers are placing.