a t - shirt or handle bag of plastic film material of the foldable type and provided with handles , which is connected in single file with further identical bags from which it may be separated by tearing - off along weakened areas . a roll formed from a continuous ribbon of bags is adapted to be supplied for use in apparatuses for automatically dispensing and opening the bags into which the goods that have been bought at the checkout counters of a store . in order to obtain a constant - size roll ] by rolling up a continuous ribbon on a central core ], the handle bag is dimensioned so that each one of its folded lateral portions ] has a width which is not smaller than one third of the total width ] of the bag in its flattened condition .