Structure Design of Composite Film for Meat Product Packaging-(Ⅴ)
The packaging of consumed foods can be divided into convenient food, puffed food, pastries & biscuit, dairy product & baked goods, candy & preserved fruit, meat product, pre-made food, roasted nuts, frozen food,health care, grain & oil, sauce, wine & beverage, tea & instant drink etc.
1. Food Type
duck neck, crispy sausage, dried beef, hot dog, jerky, dried pork slices,ham sausage,Roast sausage, chicken breast, beef skewer, lean meat, lamb roll, raw steak, cuttlefish, beef fillet, salmon, canned fish, scallops, clam meat, abalone, chicken roll, ham, luncheon meat.
2. Packaging Requirements
(1) High Oxygen Barrier: Meat products have high fat content, which is easily oxidized and deterioration, resulting in bad smell and taste and decreasing its nutritional value. What's more, meat products contain a lot of protein, which would be break down into nitrogen source by microorganism, resulting in the fast growth of bacterium. So it is required a packaging with high oxygen barrier to inhibit the microbial proliferation.
(2) Good Toughness: The packaging film should be better fitted to the contents when vacuuming. So the film must have good toughness.
(3) High Ductility: Many meat products will have prominent shapes like wings, legs etc. which will stretch the package outward. So the packaging should have high ductility to adapt to different shape and ensure that the barrier property will not change and the packaging cannot be broken.
(4) High Impact Strength: The packaging pouch would be broken, especially heal seal broken, when a fall occurs. So the packaging film is required high impact strength to prevent the damage in transportation and storage.
(5) Low Residual Solvent: The residual solvent in the packaging film may be slowly seep into the food, so we must minimize the residual solvent in food packaging as possible as we can.
(6) Suitable Right Angle Tearing:It is easy to tear the pouch when use, easy to eat.
(7) Easy to Tear: Some of meat products packaging are MAP, which is with both good sealing and tearing performance.
3. Structure of Packaging Film
LDPE; NY/CPP; NY/PP Co-extrusion; NY/LDPE、PET/LDPE; PET/NY/LDPE; PVDC; PVDC/PVDC; NY/EVOH/PE; NY/EVOH/EVA
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We will continue to discuss more about the food packaging in next episode. Please follow us and see what will be the next hot topic of food packaging. Look forward to your attention!
