PACKAGING BRIEFS:Pro-Mach Inc ., Cincinnati, said itsWexxar Packagingdivision acquired IPakMachinery Ltd., a Vancouver, B.C., manufacturer of corrugated tray forming machines. Wexxar manufactures end-of-line case erecting and case sealing equipment. . . . Plastic films supplierPliant Corp., Schaumburg, Ill., named four regional direct sales representatives for its U.S. Stretch and Shrink Films business. Named to regional vice president positions wereCraig Miller(Northeast)Steve Johnston(Southeast)MichelleWilson(Midwest) andBrian Gooding(West). Pliant said it concluded its former sales representation contract withPhenix Marketing Group, Winston-Salem, N.C.