Packtastic Tuna Bags are premium high-barrier shrink bags engineered specifically for the preservation of fresh, frozen, and precooked tuna loins. Manufactured using advanced multi-layer co-extrusion technology with PVDC (Polyvinylidene Chloride) or EVOH (Ethylene Vinyl Alcohol) barrier layers, these bags deliver exceptional protection against oxygen, moisture, and external contaminants. When exposed to hot water at 85–90°C, the bag shrinks tightly around the tuna, forming a wrinkle-free "second skin" that conforms precisely to the product surface—preserving natural colour, texture, juice, and flavour.
Designed specifically for tuna loin packaging, Packtastic Tuna Bags offer extended chilled shelf life up to 4 months under refrigeration, making them ideal for export and long-distance distribution. With superior puncture resistance for handling delicate tuna loins, crystal-clear transparency for retail appeal, and full customization options—including custom sizes, multi-colour printing, and various bag styles—Packtastic is the trusted packaging partner for tuna processors, seafood exporters, and retailers worldwide.
Tuna bags are multi-layer co-extruded high-barrier shrink bags specifically designed for vacuum packaging of tuna loins—including yellowfin, bluefin, bigeye, and other tuna species. The product is placed inside the bag, vacuum-sealed, and then passed through a hot water tunnel at 85–90°C. The heat causes the bag to shrink tightly around the tuna, creating a skin-tight, wrinkle-free package that conforms to the product's shape while providing a high-barrier seal against oxygen and moisture.
Packtastic offers both PVDC and EVOH barrier options, allowing you to choose the solution that best fits your product, storage conditions, and distribution requirements.
| Feature | PVDC (Polyvinylidene Chloride) | EVOH (Ethylene Vinyl Alcohol) |
|---|---|---|
| Oxygen Barrier | Excellent; stable in all humidity | Excellent in dry conditions |
| Moisture Barrier | Excellent | Moderate |
| Humidity Sensitivity | Not affected by humidity | Loses barrier above 70% RH |
| Shrinkage Rate | High | High |
| Clarity | Excellent | Excellent |
| Best For | Fresh tuna, high-humidity cold chain | Fresh tuna, export applications |
Superior Oxygen & Moisture Barrier
PVDC and EVOH barrier layers provide exceptional protection against oxygen transmission—with oxygen transmission rates as low as ≤5 cc/m²·24h. This significantly extends product shelf life, prevents oxidation, and preserves the natural colour and flavour of tuna. PVDC maintains stable barrier performance even in high-humidity environments, making it ideal for fresh tuna in cold-chain conditions.
Extended Shelf Life
Chilled fresh tuna: Up to 4 months under refrigeration (0–4°C)
Precooked tuna loins: Extended shelf life under refrigeration
Frozen tuna: Up to 12 months or longer
Skin-Tight "Second Skin" Shrink Fit
When heated, the bag shrinks tightly around the tuna, forming a wrinkle-free "second skin" that conforms precisely to the product surface. This eliminates air pockets, reduces purge loss and blood seepage, and preserves the natural shape of the tuna loin.
Exceptional Clarity & High Gloss
Crystal-clear transparency and high gloss showcase the natural colour and texture of the tuna, enhancing retail shelf appeal and consumer confidence.
Superior Puncture & Tear Resistance
Multi-layer construction provides outstanding puncture resistance, protecting delicate tuna loins during handling, processing, and distribution. The shrinking process also thickens the packaging material, making it tougher and more durable.
Low-Temperature Shrink Options
Available with shrink temperatures as low as 85°C, helping to preserve product quality and prevent colour degradation during packaging.
Anti-Fog Properties
Optional anti-fog coating prevents condensation from forming 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, ISO, BRC, HACCP, and Kosher standards.
Full Customization
Packtastic offers extensive customization capabilities including:
Bag styles: curved bottom, straight bottom, side seal, taped, perforated
Colours: clear, or custom PMS matching
Packtastic Tuna Bags are suitable for a wide range of tuna and seafood products:
Tuna Products
Frozen tuna loins
Tuna steaks and portions
Tuna fillets
Other Seafood
Salmon fillets
Swordfish
Marlin
Other premium fish species
Additional Applications
Cheese and dairy products
Poultry and meat products
Superior Barrier Performance
Whether you choose PVDC or EVOH, Packtastic delivers stable, reliable oxygen and moisture barrier performance to maximise tuna shelf life and preserve product quality.
Proven Shelf Life Extension
Extend chilled tuna shelf life up to 4 months under refrigeration—ideal for export and long-distance distribution.
Puncture Resistance for Delicate Tuna
Superior puncture resistance protects delicate tuna loins during handling, processing, and distribution.
Customization Expertise
From size and thickness to full-colour printing and specialised bag styles, Packtastic provides end-to-end customisation to match your brand identity and product requirements.
Quality Assurance
ISO 9001:2015 certified production with FDA, BRC, and Kosher compliance options. All materials are food-grade and suitable for direct food contact.
Factory-Direct Pricing
Manufactured in our own facilities, Packtastic offers competitive wholesale pricing without compromising on quality.
Low MOQ
Flexible minimum order quantities to accommodate businesses of all sizes—from small seafood processors to large-scale exporters.
One-Stop Service
From material selection to finished printed bags, Packtastic provides end-to-end solutions under one roof.
Copyright © Packtastic Co., Ltd. All Rights Reserved. All Rights Reserved | Sitemap
