MULTILAYER STRUCTURES, PACKAGES, AND METHODS OF MAKING MULTILAYER STRUCTURES

摘要

There is disclosed herein a multilayer structure for packaging bone-in meat comprising: an outer layer comprising linear low density polyethylene; a first polyamide layer comprising a blend of about 90% by weight to about 99% by weight semi-crystalline polyamide and about 1% by weight to about 10% by weight amorphous polyamide; a first tie layer disposed between said outer layer and said first polyamide layer; a second tie layer disposed adjacent said first polyamide layer; a second polyamide layer disposed adjacent said second tie layer comprising a blend of about 90% by weight to about 99% by weight semi-crystalline polyamide and about 1% by weight to about 10% by weight amorphous polyamide; a sealant layer comprising linear low density polyethylene; and a third tie layer disposed between said sealant layer and said second polyamide layer; wherein the multilayer structure is biaxially oriented using a double bubble process whereby each layer of the multilayer structure is coextruded as a bubble, cooled, then reheated and oriented in both the longitudinal and transverse directions, and wherein the multilayer structure comprises a total orientation factor between about 8 and about 13.