7mic Aluminium foil jumbo roll for lamination packaging

08/14 2025

7mic aluminium foil jumbo roll is a high-performance, ultra-thin aluminium foil designed for lamination packaging applications. At 7 micrometers thickness, it balances excellent barrier properties (moisture, oxygen, light), malleability, and strength, making it ideal for flexible packaging, pouches, lidding, and multi-layer laminated structures. This product is optimized for high-speed converting, heat sealing compatibility and consistent winding for jumbo-roll processing.

Features

Ultra-thin and uniform: Nominal thickness 7 µm with tight thickness tolerance for consistent lamination performance.
Superior barrier properties: Excellent resistance to oxygen, moisture vapor, light and aromas when used in laminated structures.
Good formability and fold endurance: Easy to crease and fold without brittle cracking.
High tensile strength and elongation: Robust for high-speed converting and handling.
Smooth surface finish: Clean, defect-minimized surface for adhesion in solventless and solvent-based laminations.
Excellent roll geometry: Accurate OD/ID and edge trim to support continuous unwinding and printing/lamination lines.
Good heat reflectivity: Adds thermal / radiant protection in barrier laminates.
Recyclable and non-toxic: Aluminium is infinitely recyclable and inert for food contact applications when processed to regulatory standards.
Customizable widths and lengths: Produced to customer specifications for jumbo roll diameters and core sizes.
Compatible with adhesives & adhesives systems: Works with common solvent-based, solventless (e.g., polyurethane), and water-based adhesives suited for lamination.

Typical Applications

Flexible food packaging (snack foods, coffee, confectionery)
Pouches and sachets (vacuum, retort or standard)
Lidding foils for trays and cups (when laminated with heat-seal layers)
Medical packaging (sachets for sterile components, barrier pouches)
Barrier layers in multi-web structures for pharmaceuticals and nutraceuticals
Personal care and cosmetic sachets
Industrial packaging where barrier against moisture, oxygen or light is required
Laminated roll stock for printing and converting

Technical Specifications

Property	Typical Value	Tolerance / Notes
Nominal thickness	7 µm (micrometers)	± 0.5 µm typical (confirm with supplier)
Alloy	8006 / 8011 / 1235 (common)	Exact alloy depends on supplier and required mechanical / surface properties
Temper	O (annealed) / H14 - H18 (lightly work-hardened)	O temper most common for high formability; specific temper supplied on request
Density	2.70 g/cm³	Physical property of aluminium
Tensile strength (YS)	100–200 MPa (varies with alloy/temper)	Typical range for thin foil alloys and tempers
Elongation (%)	10–35%	Dependent on alloy and temper
Surface finish	Bright / Dull available	Bright for better reflectivity; dull for improved adhesion surface
Surface roughness (Ra)	0.2–0.8 µm typical	Depends on rolling and finishing process
Core ID	76 mm (3") or 152 mm (6") typical	Other core sizes available on request
Roll OD	Up to 1000 mm+ depending on length and core	Customizable; jumbo roll dimensions quoted per order
Width	Up to 1650 mm typical	Custom widths available; slit to customer spec
Maximum roll weight	Per mill capacity; commonly up to 2,000 kg	Supplier-dependent—confirm handling limits
Oxide layer	Naturally formed Al2O3	Provides corrosion resistance
Barrier performance (O2)	Very low oxygen transmission when laminated	Aluminium foil is essentially impermeable to gases
Moisture Vapor Transmission Rate (MVTR)	Near zero for continuous foil layer	Depends on laminate structure & seals
Food contact compliance	Compliant when processed per regulations	e.g., EU, FDA—certificate of compliance issued per batch on request
RoHS / REACH	Typically compliant	Certificates available upon request
Recyclability	100% recyclable	Aluminium infinitely recyclable without loss of properties

Alloy & Temper — Typical Guidance

Alloy	Characteristics	Recommended Temper
1235 (Commercially pure)	High formability, excellent corrosion resistance, good barrier properties	O (annealed)
8006 / 8111 / 8011	Designed for foil and packaging uses, improved strength and mechanical stability	O to H16 depending on processing
8011A	Common for household and packaging foils with good drawability	O temper

Note: Specific alloy selection should be based on required mechanical properties, surface finish, and converting needs. Consult supplier for detailed metallurgical data.

Lamination & Converting Considerations

Adhesion: Surface cleanliness and surface roughness affect bond strength. Use primers or corona treatment where needed.
Heat/Temperature: Consider temperature stability of adhesive and heat-seal layers. Aluminium itself has high thermal conductivity—manage heating profiles to avoid overheating sealing layers.
Wrinkle control: Proper tension control and edge trim reduce wrinkling during laminating and rewinding.
Slitting: Sharp, well-maintained slitting tools are required to ensure clean edges and consistent width.
Handling: Use adequate storage (dry, clean) and handling equipment to avoid contamination and mechanical damage.
Compatibility: Check chemical compatibility of adhesives and inks. Some adhesives require surface treatment for optimal bonding.

Packaging, Storage & Handling

Pack rolls in protective paper or film and on wooden or steel pallets.
Store in a clean, dry indoor location at stable temperatures to prevent moisture or contamination accumulation.
Avoid contact with aggressive chemicals and rough surfaces to prevent surface defects.
Use appropriate forklifts/cranes for heavy jumbo rolls; observe core load limits.

Quality & Certification

Batch testing for thickness, tensile, elongation, and composition available.
Certificates of Analysis (CoA) and Compliance (food contact, REACH, RoHS) provided upon request.
Inline inspection and surface defect control to minimize pinholes and inclusions that can affect barrier performance.

Ordering Information & Customization

Typical order options: thickness (7 µm standard), width, roll OD, core ID, alloy, temper, finish (bright/dull), slitting and packaging.
MOQ (minimum order quantity) and lead times depend on mill capacity and custom specifications.
Samples and technical datasheets available for qualification trials.

Advantages Over Thicker Foils in Lamination

Material savings and lower weight in the packaging structure.
Better flexibility and foldability for pouches and sachets.
Easier conformability to product shapes in lidding and flexible packaging.
Maintains high barrier performance when properly laminated and sealed.

Limitations & Mitigation

Handling sensitivity: Very thin foils are more prone to mechanical damage—use controlled tension and protective interleaves.
Pinholes: Manufacturing quality must be high to reduce pinholes—specify pinhole testing and inspection.
Mechanical strength: Lower absolute puncture resistance vs thicker foils—can be mitigated by laminate design (e.g., adding protective outer layers).

Typical Technical Data Sheet (Example)

Parameter	Value
Thickness	7 µm
Alloy	8011 (example)
Temper	O
Width	1250 mm (custom)
ID	76 mm
OD (max)	900 mm
Roll weight	750–1200 kg (depending on OD)
Surface finish	Bright
Tensile strength	130 MPa (example)
Elongation	20% (example)
Regulatory	Food-grade compliant (per request)