Aluminium Flexible Packaging Foil

Aluminium flexible packaging foil include alloy states such as 1235 O and 8079 O, with 1235 O being the most commonly used. The thickness of aluminum foil for flexible packaging is usually between 0.006mm and 0.2mm. The thickness of aluminum foil can vary for different applications, for example, the thickness of flexible food packaging foil is usually between 0.009-0.23mm. This kind of aluminum foil has excellent processing and mechanical properties, and is widely used for packaging in food, beverage, cigarette, medicine, photographic backing board, household daily necessities and other fields. It is usually made by laminating paper, coloring, printing and other processing methods, and finally used for packaging and decoration of various commodities.

The quality requirements of aluminium flexible packaging foil are relatively high, mainly reflected in the following aspects:

Surface quality:

The surface of aluminum flexible packaging foil should be clean and smooth, no corrosion scar and bruise, no serious wrinkles and folding.

Soft texture:

The texture of aluminum flexible packaging foil should be soft, should not be easy to break when folded, and has good flexibility.

Oil and pinholes:

Oil and pinholes are the main testing indexes of the product, the oil of the aluminium flexible packaging foil should be less, and the pore size of the pinholes should be no more than 20um.

Physical and mechanical properties:

The physical and mechanical properties of aluminum flexible packaging foil should meet the requirements, including tensile strength, elongation, hardness and other indicators.

Chemical properties:

The chemical composition of flexible packaging aluminum foil should meet the standard requirements, such as aluminum content, impurity content and so on.

Dimensional accuracy:

The dimensional accuracy of aluminum flexible packaging foil should meet the requirements, such as thickness, width, length and other indicators.

Packaging and use:

Aluminum foil should be stored under dry conditions to avoid prolonged exposure to the air, and care should be taken to avoid scratches and contamination when in use.

In short, the quality requirements of aluminium flexible packaging foil are relatively high, and it needs to be controlled and tested from many aspects to ensure its excellent quality and performance.