Quality requirements for the production of medical aluminum foil


Release time:

2024-01-18

The raw material used in the production of medical aluminum foil is pure aluminum foil for industrial use. Generally, the thickness is 0.02mm, the tensile strength is 98kPa, the rupture strength is 90kPa, the surface is clean, smooth, no wrinkles, no indentation damage, no flake fluorescent substances, and the surface wetting tension is not less than 32. Medical aluminum foil material is made of 99% electrolytic aluminum, after the delay and other processing methods, non-toxic and tasteless, with high quality conductivity and light shielding and high moisture resistance, gas barrier. The requirement for the pinhole degree of aluminum foil for medicinal and health food is that the pinhole with a diameter of 0.1~0.3mm is not more than 1/m2. Because pinholes in aluminum foil are penetrating defects, health food

The raw material used in the production of medical aluminum foil is pure aluminum foil for industrial use. Generally, the thickness is 0.02mm, the tensile strength is 98kPa, the rupture strength is 90kPa, the surface is clean, smooth, no wrinkles, no indentation damage, no flake fluorescent substances, and the surface wetting tension is not less than 32. Medical aluminum foil material is made of 99% electrolytic aluminum, after the delay and other processing methods, non-toxic and tasteless, with high quality conductivity and light shielding and high moisture resistance, gas barrier.

The requirement for the pinhole degree of aluminum foil for medicinal and health food is that the pinhole with a diameter of 0.1~0.3mm is not more than 1/m2. Because pinholes in aluminum foil are penetrating defects, health food and medicine will be reduced or deteriorated by oxygen, water vapor and light intrusion, so the requirements for pinholes are very strict. In addition, if the thickness of aluminum foil exceeds the required deviation (10%), it will affect the coating amount of adhesive layer and protective layer.

The aluminum foil used in pharmaceutical blister packaging is a sealing material sealed on a plastic hard sheet, also known as a lid material, commonly referred to as PTP medicinal aluminum foil. It is based on hard industrial aluminum foil and has the advantages of non-toxicity, corrosion resistance, impermeability, sanitary heat resistance, moisture resistance, etc. It is easy to carry out high-temperature disinfection and sterilization, can block light, and can protect drugs from light damage. Before sealing with plastic hard sheets, the aluminum foil cover shall be printed with text and pattern instructions on the printing coating machine, coated with protective agent, and coated with adhesive on the other side of the aluminum foil.

The purpose of the protective agent is to prevent the mechanical wear of the ink on the surface of the aluminum foil, and to prevent the outer layer of the aluminum foil from contacting the inner layer of the adhesive during the mechanical winding. The function of the coating adhesive is to make the aluminum foil and the plastic hard sheet have good adhesion strength.