Packtastic EVOH High‑Barrier Shrink Bags are premium multi‑layer co‑extruded packaging solutions engineered for the preservation of meat, poultry, tuna, cheese, and other perishable foods. The core barrier layer is EVOH (Ethylene Vinyl Alcohol) , which offers one of the highest oxygen barrier levels available in flexible packaging—significantly outperforming standard materials in dry to moderate humidity conditions. When heat‑shrunk (85–90°C), the bag forms a tight, wrinkle‑free “second skin” that conforms precisely to the product, eliminating air pockets, reducing purge loss, and locking in natural colour, flavour, and moisture.
EVOH is the material of choice for applications where maximum oxygen protection and exceptional clarity are required. It is widely used for chilled meat (up to 4 months shelf life), frozen products (12+ months), and cheese (6–12 months depending on variety). Packtastic EVOH shrink bags are available with low minimum order quantities, full customisation (sizes, thicknesses, 20‑colour printing, multiple bag styles), and internationally recognised food‑grade certifications (FDA, BRC, HACCP, ISO, Kosher)—making them ideal for processors, packers, and brands that demand premium quality and export‑ready performance.
EVOH shrink bags are multi‑layer co‑extruded tubular films used for vacuum packaging of food products. After the product is inserted and vacuum‑sealed, the bag is passed through a hot‑water tunnel (85–90°C). The heat causes the film to shrink tightly around the product, creating a skin‑tight, glossy, transparent package that maximises shelf life and visual appeal.
EVOH (Ethylene Vinyl Alcohol) is a high‑performance barrier resin that provides exceptional resistance to oxygen, aromas, and solvents. Its oxygen transmission rate can be as low as ≤0.5–3 cc/m²·24h (depending on structure), making it one of the most effective oxygen barriers in the packaging industry. EVOH is commonly used in combination with other materials (such as PE, PA, or EVA) to achieve the required balance of barrier, mechanical strength, and heat‑seal properties.
| Feature | EVOH | PVDC |
|---|---|---|
| Oxygen Barrier | Excellent in dry conditions; degrades above 70% RH | Excellent, stable in all humidity |
| Moisture Barrier | Moderate | Excellent |
| Humidity Sensitivity | Loses barrier >70% RH | Not affected by humidity |
| Clarity & Gloss | Excellent | Good |
| Shrinkage Rate | >35% | >50% |
| Best For | Dry‑to‑moderate humidity cold chain, poultry, seafood, cheese, processed meats | Fresh red meat, bone‑in cuts, high‑humidity cold chain |
Superior Oxygen Barrier
EVOH provides exceptional protection against oxygen transmission – with OTR as low as ≤0.5–3 cc/m²·24h – significantly extending product shelf life and preventing oxidation, colour fading, and off‑flavours.
Extended Shelf Life
Chilled meat (0–4°C) : Up to 4 months
Frozen meat / poultry / seafood : Up to 12 months or longer
Cheese : 6–12 months (depending on variety and storage conditions)
Pasteurised products : Extended shelf life under refrigeration
Excellent Clarity & Gloss
EVOH films offer crystal‑clear transparency and high gloss, showcasing the natural colour and texture of the product – a key advantage for premium retail presentation.
Skin‑Tight Shrink Fit
When heated, the bag shrinks tightly around the product (shrinkage >35%), forming a wrinkle‑free “second skin” that eliminates air pockets, reduces purge loss, and preserves the product’s natural shape.
Good Puncture & Tear Resistance
Combined with durable outer layers (such as PA or PE), EVOH shrink bags offer reliable puncture resistance suitable for boneless cuts, poultry, and seafood.
Low‑Temperature Shrink Option
Available with shrink temperatures as low as 85°C to protect delicate products and prevent colour degradation.
Anti‑Fog Coating (Optional)
Prevents condensation inside the package, ensuring clear product visibility even under temperature fluctuations.
Food‑Grade & Certified
Manufactured using food‑grade materials suitable for direct food contact, compliant with FDA, BRC, HACCP, ISO 9001, and Kosher standards.
Full Customisation
Packtastic offers extensive customisation capabilities including:
Custom sizes: width 150–500mm+, length customisable
Custom thickness: 45–300μm
Custom printing: up to 20 colours on both sides
Bag styles: curved bottom, straight bottom, side seal, taped, perforated (for high‑speed automated lines)
Colours: clear, white, or custom PMS matching
Anti‑fog coating
| Parameter | Details |
|---|---|
| Material | EVOH / PA / PE co‑extrusion (multi‑layer) |
| Layer Count | 5‑layer to 9‑layer options |
| Thickness | 45–300μm (custom available) |
| Width (Folded) | 150–500mm+ (custom available) |
| Length | Customisable |
| Shrink Temperature | 85–90°C (standard); low‑temp 85°C optional |
| Shrinkage Rate | >35% |
| Oxygen Transmission | ≤0.5–3 cc/m²·24h · atm · 23°C · 65% RH |
| Printing | Up to 20 colours on both sides |
| Bag Styles | Curved bottom, straight bottom, side seal, taped, perforated |
| Anti‑Fog | Optional coating available |
| Freezer Safe | Tolerable at –40°C |
| Certifications | FDA, BRC, HACCP, ISO 9001, Kosher |
Packtastic EVOH High‑Barrier Shrink Bags are suitable for a wide range of food products:
Meat
Fresh beef, pork, lamb (boneless or processed cuts)
Processed meats (ham, sausages, cold cuts)
Ground meat and patties
Poultry
Whole birds, breasts, thighs, drumsticks
Marinated and seasoned poultry products
Tuna & Seafood
Fresh and frozen tuna loins (yellowfin, bluefin, bigeye)
Salmon, swordfish, and other premium fish fillets
Cheese
Hard cheeses (Parmesan, Gouda, Edam)
Semi‑hard cheeses (Cheddar, Swiss, Provolone)
Processed cheese and cheese slices
Other
Ready‑to‑eat meals and meal components
Fresh produce and deli items
Superior Oxygen Protection
EVOH offers the highest oxygen barrier available – ideal for extending shelf life of chilled and frozen products.
Exceptional Clarity
Crystal‑clear presentation enhances product appeal and consumer trust.
Proven Shelf Life Gains
Chilled meat up to 4 months, frozen up to 12+ months, cheese 6–12 months – backed by real‑world performance.
Low MOQ
Flexible minimum order quantities make EVOH shrink bags accessible to businesses of all sizes – from artisan producers to large processors.
Customisation Expertise
One‑stop service from material selection to finished printed bags – sizes, thickness, printing, bag styles all customisable.
Factory‑Direct Pricing
Competitive wholesale rates without quality trade‑offs.
Certified Quality
Manufactured to international food‑safety standards – FDA, BRC, HACCP, ISO, Kosher.
Packaging: Cartons or wrapped pallets
Shipping: Ocean, land, air, express available
Port: Tianjin, Shanghai, Ningbo
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