Most preferred films are {TAIL ~ polyolefins}, particularly polyethylene and polypropylene; polyesters, {HEAD ~ particularly polyethylene terephthalate}; and, nylons all of which are well known in the an to be amenable to be printed as required above 
Most preferred films are { TAIL ~ polyolefins } , particularly polyethylene and polypropylene ; polyesters , { HEAD ~ particularly polyethylene terephthalate } ; and , nylons all of which are well known in the an to be amenable to be printed as required above
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