6 Papel de aluminio de micras para envases flexibles

6 micron aluminum foil—a type of ultra-thin “double-zero” foil—serves as a primary barrier substrate in the flexible packaging industry, enabling material lightweighting and unit-cost control. It is widely used for products with short-to-medium shelf lives, including food, personal care items, and tobacco. Haomei Aluminum has optimized its rolling and annealing parameters specifically for flexible packaging lamination processes. Our 6-micron aluminium foil offers industry-leading stability in mass production and precise control over pinhole density, ensuring a reliable supply for flexible packaging manufacturers worldwide.

6 Papel de aluminio de micras para embalajes flexibles. covers multiple alloy systems, allowing for flexible selection based on the contents to be packaged and specific barrier requirements:

– Temple de aleación: We stock 8021-O and 1235-O alloys; 8079-O is available for high-end barrier applications. All products are supplied in a fully annealed (suave) templar.

– Thickness Precision: Nominal thickness is 6μm, with a thickness tolerance controlled within ±3%. The thickness deviation between the beginning and end of a full coil is ≤2%.

– Width and Coil Weight: Widths range from 100mm to 1650mm, compatible with various high-speed laminating and slitting machines. Maximum coil weight is 2.5 metric tons, with standard core diameters of 76mm or 152mm, helping to minimize downtime during coil changes.

– Pinhole Specifications: Pinhole counts are ≤30/m² for standard grade, ≤15/m² for high-precision grade, and can be controlled to ≤12/m² for premium custom grades. There are no through-pinholes with a diameter greater than 0.1mm—a standard far superior to the national limit of 1000/m² for general-grade foil.

– Compliance and Certification: Our food-grade products meet FDA 21 CFR and EU 1935/2004 estándares. Heavy metal migration levels are well below the limits established for food-contact materials.

Key performance advantages of aluminium foil for flexible packaging

1. Superior Barrier Properties for Short- to Medium-Term Preservation

At a thickness of 6 micro, papel de aluminio para embalajes flexibles provides a 100% barrier against light and ultraviolet (UV) radiation. Our high-precision grade foil offers a water vapor transmission rate (WVTR) of ≤0.3g/(m² · 24h) and an oxygen transmission rate (OTR) of ≤0.5cm³/(m² · 24H · 0.1MPA), making it perfectly suited for packaging applications requiring a shelf life of 3 a 12 meses.

2. Lightweight and Flexible: Ideal for High-Speed Lamination and Bag-Making

In its “la” (completamente recocido) templar, the aluminium foil exhibits a tensile strength of 70–90 MPa and an elongation at break of ≥15%. Its soft, highly conformable nature ensures excellent adhesion when laminated with films such as PET, PE, or CPP—preventing issues like edge lifting or spring-back—and is well-suited for downstream processes including bag-making, twisting, y cortando. Produced via a low-residual-oil rolling process, the foil maintains a residual oil level of ≤3 mg/m² and a stable wetting tension of 34–38 mN/m. This allows for direct application of adhesives during lamination without the risk of “fish-eyes” (shrinkage holes) or delamination, ensuring reliable performance on high-speed dry lamination lines operating at over 200 m/min.

3. Lower Unit Costs: Optimized for Large-Scale Production

With a basis weight of approximately 16.2 g/m², the 6μm aluminum foil is 33% lighter than standard 9μm foil, allowing for a significant reduction in material usage per package while still meeting all performance requirements. Supplied in large-diameter master rolls, it further minimizes waste from splices and reduces downtime associated with roll changes. Offering a clear advantage in total cost of ownership, this material has become a preferred choice for driving cost efficiency in flexible packaging for fast-moving consumer goods (FMCG).

Mainstream flexible packaging applications of 6 papel de aluminio de micras:

– Envasado de alimentos:

Composite inner pouches for snacks, instant-meal seasoning packets, confitería, chocolate, and dried goods/nuts—ideal for products requiring short-to-medium-term shelf-life preservation.

– Personal Care & Household Products:

Individual sachets for items such as facial masks, hand creams, and shampoos; these provide a barrier against oxidation, helping to maintain the efficacy of active ingredients.

– Tobacco Packaging:

Inner liner paper for cigarette packs, designed to prevent moisture loss and retain aroma; fully compatible with high-speed cigarette packaging production lines.

– Light Industrial Goods Packaging:

Moisture-proof packaging for small electronic components and hardware, protecting items from water vapor and oxidation.

Haomei Aluminum operate a dedicated production line for “double-zero” (ultrafino) aluminum foil with an annual capacity exceeding 12,000 metric tons. The line is equipped with a three-stage ceramic filtration system and a dual-stage in-line degassing system, ensuring strict control over inclusions and hydrogen content right from the raw material stage. Throughout the rolling process, X-ray thickness gauging and in-line surface defect detection systems provide real-time, full-width monitoring of all production parameters. Standard specifications can be delivered within 15–20 days; we also support small-batch sampling and customized parameter adjustments. For export, products are secured in five-layer vacuum-sealed, moisture-proof packaging, designed to withstand the rigors of long-haul ocean transport. We also offer technical guidance on lamination process parameters to support our clients. Please contact our sales and technical team to request detailed technical specifications or free samples.