a novel package wrapper made of plastic film with a line of package - opening perforations through the film positioned in one face of the package and being overlaid by a piece of plastic tape which seals the perforations , the tape having a dry edge . the perforations and overlying tape are spaced inward from the edges of the package and extend substantially linearly , but have the tape ends terminate short of any package seal so that they are not bound into the seals . in one embodiment the package wrapper is made of air and moisture non - permeable shrink wrap film , and the tear down tape is made of a non - permeable non - shrink plastic which has been processed to exhibit the same shrink characteristics as those of the shrink wrap film , so that when the wrap film is shrunk during packaging the tape shrinks the same amount as the film and does not itself pucker or wrinkle the film . the package is completely sealed but does not require the use of any tool to open it . package opening is accomplished by grasping the tape dry edge and pulling it toward the line of perforations . the tape peels from the wrapper film until it reaches the perforations , where continued pulling of the tape ruptures the film through the perforations and permits the film to be further torn to open the package . tapes with several variant configurations are disclosed . apparatus and methods for making the novel package and wrapper are shown and described .