Blister packing machines are widely used to pack a number of products used in the pharmaceutical industry. Today blister packaging is the most popular form of pharmaceutical packaging.

What is Blister Pack ?
Blister pack refers to various types of pre-formed plastic packaging used for packing small consumer goods used in the pharmaceutical and food industry. The two basic components of a blister pack are:  the pocket or cavity made from a "formable" web, which is made of either plastic or aluminium. The other component is the lidding, made from carton, plastic, paper,  or aluminium. The "formed" pocket contains the product and the "lidding" seals or closes the product in the package. Blister packaging is the new wave of pharmaceutical packaging.

Blister Packing Process
The packing process initiates with the capsules or tablets or other pharma related products being loaded into a hopper and then into a feeder, which in turn can either be linear feeder or a brush box feeder depending on the shape of the product and also the material to be used. Heated rollers in the blister packaging machine use different plastic films to form blisters that are subsequently filled with tablets. Some machines make use of aluminium foil to form blisters. Machines are manufactured according to the size, depth and material used to form blisters. After tablets have been inserted in the formed blisters, cavities are heat sealed using foil.

Types of Blister Packaging Machine

• Blister Sealing Machines are used to seal filled plastic blister to a piece of coated carton board, by heat. The blister is kept in the sealing die which has the same shape as that of the cavity. The cavities are then filled and sealed by a foil suing heat.
• Blister Trimming Machines are used for cutting / trimming the sealed blister or formed blister packs in individual pieces or bunch.

Uses of Blister Packaging in Pharmaceutical Industry

• Blister packing machines are used by the pharmaceutical industry for packing a number of products like Tablets, Capsules, Drugs, Vials, Ampoules, Syringes or Liquid products.
• They provide barrier protection for shelf life requirements.
• They also provide a degree of tamper resistance.