In daily life, the application of pharmaceutical aluminum foil is very extensive and mature. The main uses of pharmaceutical foil are blister packaging of pharmaceutical capsules, tablets, etc., as well as bag packaging of powder granules and water. Due to its direct contact with edible medicines, the country has very strict requirements on the appearance and performance of medicine foils.
There are two kinds of common medicinal foils, 8011 aluminum foil and 8021 aluminum foil, among which the thickness of 8011 alloy is generally less than 0.05mm, and the thickness of 8021 alloy is above 0.05mm. Generally speaking, the main production process is: blank inspection - billet rolling - split rolling - coil rolling - rolled finished product - slitting - furnace annealing - finished product packaging. The surface of medicinal aluminum foil requires no oil stains, no sparkles, no black lines, no pinholes, no yellow spots, no ruffles, etc. During the production process, the control of the surface and performance is mainly based on the following points:
1. First of all, we must control the quality from the source and strictly inspect the blank;
2. Then during the rolling process, the surface quality is controlled by cleaning the rolls and controlling the roughness, selecting rolling oil, reducing the viscosity of rolling oil, and controlling the operating speed of the machine;
3. Again, in the process of slitting, it is necessary to ensure that the edges of the aluminum coil are neat when slitting, 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 medicinal foil to ensure clean oil removal.
With the development of the pharmaceutical industry, pharmaceutical aluminum foil has an increasing application ratio due to its excellent moisture resistance, barrier properties, chemical resistance, chemical stability, and hygiene, and its appearance and quality requirements are also getting higher and higher. The market The prospects are very bright.
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