The only ways i can think of is to put it in the freezer for a few hours
nail varnish remover may work
Possibly something oil based and let it soak for a few hours
acetone
you can get an antidote to superglue that can be used for getting it off your fingers or if you stick your fingers together!! would imagine it would work on material too.
ive had a tiny bottle of it for ages lying around, it should be near the superglue in any decent shop, try staples for example.