The outer packaging material of ham is PVDC blown film, polyvinylidene chloride. It is a packaging material with high barrier properties. It has the characteristics of low air permeability and moisture permeability, excellent oil and chemical resistance, and good fragrance retention.

Plastic casing film packaging materials have developed rapidly in recent years and are mainly used for meat packaging. They are widely used in packaging sausages, ham sausages, red sausages, powdered sausages, sandwich sausages, garlic sausages, and minced meat sausages. wait.

Extended information:

PA casing membranes include ordinary nylon casing membranes, shrinkable nylon casing membranes and composite nylon casing membranes. Shrinkable nylon casing film was successfully developed in China in 1994 and put into production. It is suitable for low-temperature hot meat casing films, while PVDC is suitable for high-temperature hot meat casings.

The low-temperature meat casing membrane maintains the original flavor of the meat and has more nutrients. After the meat is packaged in ordinary PA6 casings, the surface is prone to wrinkles and is not smooth and flat enough. However, the shrinkable PV6 film can shrink and make the surface smooth and flat after packaging the meat through high-temperature cooking and sterilization. It has good strength and has better barrier properties than ordinary nylon casings. Membrane height. Shrinkable nylon casing membrane can shrink by 14% at 80℃.

Baidu Encyclopedia-Plastic Casings