In daily life, medicinal aluminum foil is widely used and mature. The main uses of medicinal foil include blister packaging of pharmaceutical capsules, tablets, etc., and bag packaging of powder granules and liquids. Because it is in direct contact with edible drugs, the country has very strict requirements on the appearance and performance of pharmaceutical foils.
There are two common medicinal foils on the market, 8011 aluminum foil and 8021 aluminum foil. The thickness of 8011 alloy is generally less than 0.05mm, while the thickness of 8021 alloy is more than 0.05mm. Generally speaking, the main production process flow is: blank inspection - blank rolling - split rolling - combined coil rolling - rolled products - slitting - furnace loading and annealing - finished product packaging. The surface of medicinal aluminum foil requires no oil stains, no shiny crystals, no black lines, no pinholes, no yellow spots, no ruffles, etc. During the production process, the surface and performance control mainly include the following points:
1. First of all, we must control the quality from the source and strictly inspect the blanks;
2. Then during the rolling process, the surface quality is controlled by cleaning and roughness control of the rolls, selecting rolling oil, reducing the viscosity of the rolling oil, and controlling the operating speed of the machine;
3. Again, during the slitting process, it is necessary to ensure that the edges of the aluminum rolls are neat and neat, and there are no quality problems such as ruffles;
4. Finally, in the annealing process, the annealing time and annealing temperature are controlled according to the performance requirements of the chemical foil to ensure clean oil removal.
With the development of the pharmaceutical industry, medicinal aluminum foil has excellent moisture resistance, barrier properties, chemical resistance, chemical stability, and hygiene. The proportion of applications continues to rise, and the appearance and quality requirements are also getting higher and higher. The market The prospects are very bright.
