Aluminum Foil Pharmaceutical

Aluminum foil pharmaceutical blister packaging is becoming more and more common in the packaging of health food and medicine tablets and capsules. The pharmaceutical aluminum foil used in the blister packaging is a sealing material that is tightly sealed on a rigid sheet of medical plastic polyvinyl chloride (PVC). Almost all products in modern packaging that require opaque or high-barrier composite materials use aluminium foil as the barrier layer. This is because aluminum foil has a highly dense metal crystal structure that can block gases, so it is widely used. The packaging of pharmaceutical blister materials will account for about 60% to 70% of the future pharmaceutical tablet and capsule packaging.

In addition to better protecting the quality and performance of the drug, this kind of aluminum foil pharmaceutical packaging also has the characteristics of fast packaging production, low cost, light weight, small storage space, and convenient transportation and use. As users have higher and higher requirements for the quality and appearance of medicines, the surface printing can reach 6 to 8 characters and patterns, and the quality requirements of aluminium foil for pharmaceutical packaging are getting higher and higher.

Now the packaging of aluminum foil pharmaceutical is mostly made of 8011 alloy aluminum foil with a thickness of 0.02 mm and a temper of H18. The process flow is: billet inspection → rolling → coiling → rolling → slitting → inspection, packaging, and storage. The rolling pass distribution is 0. 3 mm (H14) → 0. 145 mm → 01072 mm → 0. 032 mm → 2 × 0. 02 mm (H18). The 1st and 2nd passes are rolled on the roughing mill (the crown of the roll is 0.09 mm and the Ra value is 0.3μm); the 3rd and 4th passes are placed in the middle rolling (the crown of the roll is 0.10 mm, Ra value is 0.15μm) rolled on. The rolling speed of the 1st, 2nd and 3rd passes is between 800 MPmin and 1200 MPmin, and the speed of the fourth pass is 400 MPmin to 450 MPmin.