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Heat Seal Blister Packaging-Manufacturing And Benefits

Heat Seal Blister Packaging-Manufacturing And Benefits

A heat seal blister pack is a type of blister packing that is created by the use of heat. It is made up of a single piece of solid thermoformed plastic that is heat-sealed to a coated back card.

Facts About the Manufacturing Process:

1. Each phase of the blister packaging process is distinct and is necessary to execute.

2. The seal strength is affected by each and every step.

3. Everything must be executed and monitored carefully.

4. Temperature and pressure are critical parameters that must be monitored in order to assure high-quality output.


Let us take a quick look at its manufacturing method, raw materials, and the industry's expanding need to use it.

Manufacturing process

heat seal blister packaging process

Step 1: Raw material input, which includes plastic, backing material, and the finished product. If the backing material, such as paperboard, is delivered in one huge piece, it is first to cut into appropriate portions before the manufacturing process can begin.

Step 2: The thermoforming machine receives the plastic material. The machine softens the plastic material by heating it to a certain temperature, allowing it to be moulded easily.

Step 3: The plastic is then fed into/onto moulds that produce one or more chambers to retain the product once it has become flexible. The plastic undergoes a brief cooling phase after thermoforming, and it is now fit for the heat sealing process.

Step 4: To seal, insert the product in the plastic blister and place the backing on top of the heat seal blister. The blister plastic is then heated and pressure bonded to the paperboard/card.

Step 5: The packing process is complete once it has been sealed, and the packaging is ready to be released.

Raw materials

raw material used in heat seal blister packaging

PVC or PET are the most common plastics used in heat seal blister packs. Both materials have outstanding clarity, which improves product visibility while on display.

Applications/Industrial use

applications of heat seal blister packaging

This packaging is used to pack products such as;

  1. Electronics items
  2. computer hardware accessories
  3. cosmetics
  4. fashion accessories
  5. toys
  6. stationery goods
  7. hardware tools
  8. automotive parts
  9. medical and pharmaceutical kits


· Are inexpensive as it uses a small amount of raw material

· The coated back card of a heat seal blister offers a great promotional space

· Aesthetically robust and clear product display is provided by clear thermoformed plastic.

· The heat sealing process makes this packaging uniquely brazen-free

· Easily personalized to fit the needs of a product/customer.

· Very sturdy and robust.

Less known facts

  1. Not all of the heat seal packages re-closable.
  2. Highly sturdy against tampering, theft, and pilferage