What processes are used to make blister packaging?
How is blister packaging made, step-by-step?
- First, a heat-sealed blister is formed using an aluminium resin tool.
- The cardboard backing is printed, using a special printing process which has adhesive in it.
- The blister is placed into a specialised part of the sealing machine, known as the sealing jig.
What material is used for blister packaging?
Blister packaging is comprised of PET (polyethylene terephtalate) or PVC (polyvinyl chloride) plastic packaging. The rugged material used for blister packs makes them ideal for a wide range of applications, such as pharmaceuticals, electronic equipment, or toy products.
What is the principle of blister packing machine?
The working rule of the flat forming blister machine: The formed film is heated and softened by the flat heating device. The softened film is blown into a blister by using compressed gas within the flat forming device, and therefore the filling device fills the package into the blister.
How are blister packs sealed?
Blister packs refer to a variety of packaging that have a preformed plastic “pocket” or “shell” (where a product sits securely in place) that is most often heat sealed to an adhesive coated paperboard card or foil backing (think single dose pills or lozenges).
What is the advantage of blister formation?
Friction, burns, frostbite, and some medical conditions can produce blisters. Blisters help prevent further damage to deeper tissues. It is best to leave blisters intact to protect the underlying layers from infection.
What is pharmaceutical blister packaging?
In pharmaceutical industry blister packaging is used to pack tablets, pills, capsules, granules or lozenge and also to pack different goods viz. pens, pencils etc. The name derives from the fact that each item packed in blister packing is contained within its own small plastic bubble, or blister.
What is knurling in blister packaging?
Knurling in the blister help in proper sealing of the blister and proper knurling prevent blister from leak test failure. Proper Knurling shows good blister quality.
What fluid is in a blister?
About blisters Fluid collects under the damaged skin, cushioning the tissue underneath. This protects the tissue from further damage and allows it to heal. Most blisters are filled with a clear fluid (serum), but may be filled with blood (blood blisters) or pus if they become inflamed or infected.
How do you stop a blister from forming?
Rub a small amount of petroleum jelly in friction-prone spots. The lubrication minimizes friction and prevents blisters from forming.
Why are tablets in blister packs?
They keep tablets separate from each other to avoid crushing or damage in transit by placing each tablet into a thermoformed plastic pocket, which typically then has a lidded seal of either aluminium foil or plastic film that is attached to a paperboard back; these work together to protect against external elements …