Al Foil For Packaging Drugs

Al Foil For Packaging Drugs

The aluminum foil blister packaging of medicines is currently the most widely used way of packaging medicines. It has the advantages of moisture-proof, safety and sanitation, long shelf life, and convenient to carry and use. At the same time, it also has the advantages of low cost, fast production speed, and convenient transportation. Aluminum foil for pharmaceutical packaging is generally composed of 5 parts: protective layer, outer printing, aluminum foil base material, inner printing, and adhesive layer. The main functions of the protective layer are:
 

1. Modify the surface of the aluminum foil to make the surface of the aluminum foil bright and smooth and fill the small gaps on the surface of the aluminum foil.

(2) Improve the acid and alkali corrosion resistance of aluminum foil and extend the shelf life of medicines.
(3) It has a certain degree of hardness and adhesive strength, protects the printing ink on the outside, and adheres well to the aluminum foil substrate without falling off. During high temperature compounding (150-180℃), the coating will not stick to the machine stick of the medicine packaging machine because of softening and stickiness. In this test, thermosetting acrylic resin is used, through the combination of appropriate nitrocellulose, additives, solvents, etc., to obtain good heat resistance, strong adhesion, full coating, rapid drying, good unwinding, and excellent performance for pharmaceutical packaging. Aluminum protective coating.
 
The important performance requirement of the aluminum foil protective coating for pharmaceutical packaging is that the protective layer formed on the hard aluminum foil has strong adhesion to the aluminum foil, and has a higher hardness when it is laminated at high temperature and hot pressing (150-200℃:). Sticking off occurs. Nitrocellulose has good tensile strength, high hardness, and fast release of solvent. When its content reaches a certain level, it can meet the hardness requirement. Thermosetting acrylic resin is used as a protective or modified coating on metal surfaces. It has excellent performance in all aspects after curing, with excellent gloss retention, color retention, corrosion resistance, heat resistance, and high adhesion. After comprehensively considering the properties of the two resins, nitrocellulose and thermosetting acrylic resin were selected as the main film-forming materials of the aluminum foil protective coating for pharmaceutical packaging to ensure that the protective layer has good hardness, adhesion, heat resistance and Corrosion resistance.
 
Alu Foil For Food With the development of time, aluminum foil material began to enter people's field of vision, and lunch boxes made of this material began to become popular abroad.