Medical aluminum foil

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, and the breaking strength is 90kpa. The surface is clean, flat, wrinkle free, indentation free, fluorescent material free, and the surface wetting tension is not less than 32. The medical aluminum foil material is made of 99% electrolytic aluminum by postponing and other processing methods. It is nontoxic and tasteless, with high quality conductivity, blackout, moisture resistance and gas resistance.



The requirement for the pinhole size of aluminum foil for medical and health food is that the pinhole diameter of 0.1-0.3mm should not be more than 1 / m2. As the pinhole in aluminum foil is a penetrating defect, the penetration of oxygen, water vapor and light will reduce or deteriorate the efficacy of health food and medicine, so the requirements for pinhole degree 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 the packaging of drug blister is the sealing material, also known as the sealing material, commonly known as PTP medical aluminum foil. It is based on hard industrial aluminum foil, which is non-toxic, corrosion-resistant, impermeable, hygienic, heat resistant, moisture-proof and other advantages. It is easy to carry out high-temperature disinfection and sterilization, and it can block light, which can protect the medicine from the damage of light. Before sealing the aluminum foil cover material with plastic hard film, it is required to print the text and pattern on the printing brush coater, and apply the protective agent. On the other side of the aluminum foil, apply Binder.
The purpose of coating the protective agent is to prevent the mechanical wear of the ink on the surface of the aluminum foil, and to prevent the pollution caused by the contact between the outer ink and the adhesive on the inner layer during the mechanical winding of the aluminum foil. The function of coating adhesive is to make aluminum foil and plastic hard plate have good adhesion strength.