a stack of plastic t - shirt bags and method of making the same wherein the bags of the stack have been subjected to two corona treatments to increase the adhesion between the back wall of each bag and the front wall of the next ensuing bag with a row of pressure points being provided at the base of the central mounting tab in order to enable each bag as it is pulled open on the rack arms to initiate opening of the next ensuing bag . the mounting tab is cut to provide not only a central mounting slit , but also with a wave - like cut below the mounting slit to enable the mounting tab to be torn for removal from the central mounting element without the tear extending down into the bag walls .