{HEAD ~ The weakened portion} 45 is provided by reducing width of the seal by reducing {TAIL ~ the amount} of adhesive 21 between the top and bottom foil sheets 39 and 40 in a specified area 
{ HEAD ~ The weakened portion } 45 is provided by reducing width of the seal by reducing { TAIL ~ the amount } of adhesive 21 between the top and bottom foil sheets 39 and 40 in a specified area
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH