How do you remove sticky tape left over from removing hygiene label from bottom of bathing suit?

We use sticker all the time when manufacturing custom cut swimwear. Sometimes the glue comes off the sticker or part of the sticker stays behind with little edge area to lift. The best method we have found is too use a little paraffin. Soak a cloth and spot the sticker until wet through. This softens the glue and the paper lifts off easy. A gentle wipe almost always removes the residual glue.