Alu Alu Blister Foil Specification

Alu-alu blister foil is a composite material commonly used in pharmaceutical packaging, consisting of two layers of aluminum foil sandwiched between an adhesive and possibly a barrier layer (e.g., polyvinyl chloride PVC).

Alu alu blister foil has excellent barrier, sealing and protective properties and is commonly used in the packaging of highly sensitive drugs. The basic structure of alu-alu blister foil usually consists of three layers: an outer aluminum foil (OPA), an adhesive and barrier layer (e.g. PVC) and an inner aluminum foil (ALU). These three layers are bonded together by a specific process to form a composite material with high barrier properties.

Below are some common alu alu blister foil specification:

1, Thickness:

– Aluminum foil layer: typically 20 microns (μm) to 30 microns (μm), some specific applications may use thicker or thinner foils.

– Composite materials (e.g. PVC or PVDC): typically 250 microns (μm) to 500 microns (μm), depending on product requirements.

– Total Thickness: Common alu-alu foils range from 130-160 microns (μm) or 0.13-0.16 millimeters (mm) in total thickness.

2, Width:

Common widths are: 250mm, 300mm, 400mm, 450mm, etc. The specific widths can be customized according to customer requirements.

3, Roll length:

The roll length is generally between 1000 meters and 5000 meters, the specific length can be adjusted according to the production equipment and customer requirements.

4, Composite method: alu-alu blister foil is usually laminated with plastic material (such as PVC, PVDC, etc.) between two layers of aluminum foil.

5, Adhesive: used to bond the three layers of material together, common types of adhesives such as hot melt adhesive. Its dosage and performance will affect the overall strength and barrier properties of the double aluminum blister foil.

6, Barrier properties: including water vapor transmission rate and oxygen transmission rate. These performance parameters are essential to protect drugs from the external environment. Common barrier performance standards include water vapor transmission rate of less than 0.5g/(m²-24 hours) and oxygen transmission rate of less than 0.5cm³/(m²-24 hours-0.1MPa).

Features of alu alu blister foil are:

– Excellent barrier properties: the alu alu blister foil can effectively block moisture, oxygen and light to protect the stability and effectiveness of drugs, especially suitable for drugs sensitive to light and humidity.

– Non-toxicity and safety: the aluminum foil material is non-toxic and meets the safety standards for drug packaging, and will not have harmful effects on drugs.

– Good sealing: Through heat sealing technology, the alu alu blister packs can achieve good sealing to ensure the safety of drugs during transportation and storage.

– Convenient to use: Blister packs are designed for easy access by consumers, usually in an easy-tear or squeeze design.

Alu alu blister foils occupy an important position in the pharmaceutical and nutraceutical industries due to their excellent protective properties and safety. Their exact alu alu blister foil specifications can be customized to meet the packaging needs of different pharmaceuticals and products.