High quality medicines require packaging, in which there should be safe protection from the environment, oxygen and moisture. Only in this way can these ingredients maintain the efficacy. The blister pack is easy to handle, compact and easy to carry. In it, thanks to the use of aluminium foil, each product is individually wrapped and protected from all influences until it is consumed. That’s why medicines are packed in aluminum foil.
The aluminum foil for pharmaceutical packaging is mainly used for the packaging of liquids, injections,easy-to-open bottle caps and tablets. It has advantages of moisture-proof, safe and hygienic, and easy to carry. Blister packaging has a a moulded plastic cavity for the individual tablets and a push-on lid made of aluminium foil, called a blister film or lidding film. As a result, capsules and tablets are hygienically clean and protected.
Surface
In a bright place with natural light, visually inspect the sample for damage, fission, etc. The surface of the aluminum foil should be clean, flat and evenly coated.
Pinhole degree
The size and number of aluminum foil pinholes have a decisive influence on the moisture resistance, gas barrier properties and light shading properties of aluminum foil and its composite materials. The aluminum foil should not have dense, continuous and periodic pinholes; in each square meter, no pinholes with a diameter greater than 0.3mm are allowed, and the number of pinholes with a diameter of 0.1~0.3mm shall not exceed one.
Barrier performance
The barrier performance of aluminum foil is an important indicator for selecting suitable packaging materials for medicines. Packaging with excellent barrier properties can avoid moisture absorption of drugs and oxidative deterioration of active ingredients, greatly extending the shelf life of drugs.
Breaking Strength
The ability of aluminum pharma foil to withstand static local extrusion in the actual transportation environment is investigated. Through this test, we can understand the damage caused by external pressure and impact force in the process of drug packaging, transportation, storage, and sales.