Also, {HEAD ~ this greater width} of the film 32 keeps its lateral edges free from contact with {TAIL ~ the processing composition} 
Also , { HEAD ~ this greater width } of the film 32 keeps its lateral edges free from contact with { TAIL ~ the processing composition }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL