Improved net for meat product

摘要

Shrinkable food packaging comprises a food encapsulating structure formed from a knitted thread which shrinks on contact with moisture such that a compressive force is imparted onto the encapsulated food. The structure may be a tubular net 10 for encapsulating a meat product, the net comprising spaced apart warp 11 and spaced apart weft threads connected to each other. Only the weft threads may shrink on contact with water or alternatively only the warp threads may shrink on contact with moisture. Both the warp and weft threads may shrink on contact with moisture. The thread may be cellulosic, viscose, nylon, polyester or polynosic fibre. The weft threads may comprise spaced apart pairings of first, elastic threads 12 and second, shrinkable threads 13, the threads unconnected, such that before wetting the net is stretchable and upon wetting the shrinkable wefts shrink. The first and second weft threads may be knitted to warp threads. The first weft threads may be bare rubber or have rubber core covered by helically wound yarn. The second shrinkable weft may be a bare yarn. The warp threads may comprise yarn that shrinks on contact with moisture.