Seal Aluminum Foil Vacuum Bags Custom Extra Thick Heat Sealable Food Storage Packing Bags

Product Overview

The custom extra-thick aluminum foil vacuum heat-sealable food storage packing bag is a high-barrier flexible packaging solution designed for long-term food storage, transportation, and retail presentation. It is made from a multi-layer aluminum foil composite film and can be vacuum-sealed and heat-sealed to protect contents from light, moisture, oxygen, and odor. The bag is available in flat, stand-up, or custom styles, with customizable size, thickness, printing, zipper, one-way valve, tear notch, and more.

Laminate Structure

The product uses a multi-layer laminated film structure. Common material combinations are as follows:
• Outer layer: PET (polyester) for printing substrate and scratch resistance.
• Middle layer: Aluminum foil (AL) as the core barrier layer, providing excellent oxygen, light, and moisture barrier performance.
• Inner layer: PE (polyethylene) or RCPP (retortable polypropylene) for heat-sealing and food-contact safety; RCPP is used for high-temperature retort applications.
• Optional structures include: PET/AL/PE (standard), PET/AL/PA/PE (enhanced puncture resistance), and PET/AL/NY/RCPP (retortable, up to 121°C).

Key Features

• High barrier: The aluminum layer provides extremely low oxygen and water vapor transmission rates, effectively extending product shelf life.
• Extra-thick and durable: Puncture-resistant and tear-resistant, suitable for vacuum packaging and long-distance transportation.
• Vacuum and heat-sealable: Strong sealing performance helps prevent leakage and keeps food fresh.
• Lightweight and space-saving: Light in weight, and the bag shrinks as contents decrease, making it easy to store and carry.
• High-quality printing: Supports multi-color gravure printing, with a large printable area for brand presentation.
• Customizable: Size, thickness, color, logo, zipper, one-way valve, tear notch, round corner, hang hole, etc.

Technical Specifications (Reference)

• Total thickness: 80–200 μm (customizable).
• Water vapor transmission rate: ≤0.006 g/(m²·24h) at 40°C and 90% RH.
• Oxygen transmission rate: ≤0.024 ml/(m²·24h·0.1MPa).
• Lamination strength: ≥25 N/15mm.
• Seal strength: ≥35 N/15mm.
• Heat-seal temperature: 150°C ± 10°C.
• Temperature resistance: Standard grade can withstand hot-fill above 80°C; retort grade up to 121°C sterilization.
• Food-grade: FDA, LFGB, SGS test reports available upon request.

Applications

Food and beverages: coffee beans, tea, nuts, dried fruit, grains, snacks, spices, powders, dehydrated vegetables, meat, seafood, etc.
Pet food: dry pet food, treats, and powder blends.
Commercial use: household storage, e-commerce shipping, retail packaging, and export food packaging.

Customization and Services

This product supports full customization in terms of size, thickness, material, color, printing design, zipper, one-way valve, tear notch, round corner, and hang hole. We are a factory-direct supplier, compliant with food-grade safety standards, and can provide test reports. Stable lead times, free sample service, and a professional team to assist in optimizing packaging solutions are available.

Notes

This packaging is not suitable for microwave heating unless clearly marked as microwave-safe.
Avoid oil, powder, or liquid on the sealing area to ensure proper heat-sealing.
Store in a cool, dry, and dark place.
For inquiries or samples, please contact us.