Oxygen barrier properties are crucial in modified atmosphere packaging (MAP). An effective MAP tray lidding film should have a low oxygen permeability to prevent oxidation of food products. Research indicates that films with less than 5 cc/m²/day per 100µm thickness provide optimal shelf life.
Oxygen barrier properties are crucial in modified atmosphere packaging (MAP). An effective MAP tray lidding film should have a low oxygen permeability to prevent oxidation of food products. Research indicates that films with less than 5 cc/m²/day per 100µm thickness provide optimal shelf life.
Moisture barrier films are essential to prevent water vapor from entering or leaving the packaging. A moisture vapor transmission rate (MVTR) of 0.5 g/m²/24h at 38°C is ideal to maintain product freshness. Without proper moisture control, products may degrade quickly, affecting consumer satisfaction.
According to studies, films with enhanced moisture barrier properties can extend shelf life by up to 50% in dry environments.
Temperature fluctuations during storage and transport can compromise seal integrity. Films need to withstand a temperature range of -40°C to 90°C without losing functionality or performance.
Strong, reliable seals are paramount in MAP. A sealing strength greater than 30 N/15mm ensures that products remain secure and free from contamination, preserving their quality and safety.
Sealing Process:
1. Align the trays with lidding film.
2. Apply heat to initiate sealing.
3. Cool down to establish strong bonds.
Consumers prefer visually appealing products. Films need high optical clarity for visibility while still providing necessary barrier properties. A light transmission factor of around 90% is commonly targeted.
Mechanical strength is vital for durability during transit. Films should withstand punctures and tears, achieving a tensile strength of at least 35 MPa. This ensures that the packaging remains intact, preserving the product within.
Lastly, compliance with food safety regulations is non-negotiable. MAP films should meet local and international food safety standards, ensuring products are safe for consumption and protecting brand integrity.
| Property | Ideal Specification |
|---|---|
| Oxygen Permeability | Less than 5 cc/m²/day |
| Moisture Vapor Transmission Rate | 0.5 g/m²/24h at 38°C |
| Temperature Resistance | -40°C to 90°C |
| Sealing Strength | Greater than 30 N/15mm |
| Light Transmission | Around 90% |
| Tensile Strength | At least 35 MPa |
In summary, choosing the right MAP tray lidding films requires careful consideration of these seven barrier properties. Ensuring your packaging meets these requirements can significantly enhance product freshness, safety, and appeal, leading to increased customer satisfaction and market success.