Blister packaging and strip packaging are two popular forms of the primary packaging system.
However, it is difficult to differentiate between blister packaging and strip packaging. Besides, the difference between a strip pack and a blister pack you may find out from here.
Blister packaging |
Strip packaging |
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Unit-dose packaging in which a semi-rigid blister/ cavity previously formed is filled with product and lidded with a heat-sealable backing material |
Unit dose packaging in which a pharmaceutical product is enclosed between two webs of heat-sealable flexible film |
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Blister/ cavity/pocket is formed either a thermoforming or cold forming process |
Product is enclosed between two webs of heat-sealable flexible film through a heated reciprocating platen or a heated crimp roller. |
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Blister packs are made through a form-fill-seal method |
Strip packs are formed around the tablet at a time when it is dropped to the sealing area |
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Blister packs are usually produced at higher speeds than Strip. |
Strip packs are usually produced at lower speeds than the blister. |
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Blister Packs have less possibility of wrinkling while sealing. |
The formed strip pockets are too tight, thus, wrinkling of the seal area or perforation of the pocket periphery may occur. |
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Provide more mechanical protection |
Risk of product damage during handling /prone to mechanical damage. |
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More air entrapped onto blister |
Less air entrapped, so provide more protection from air molecules and moisture. |
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Less child resistance |
More child resistance |
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Easy to use |
Strip pack is not usable by the elderly and patients with arthritic fingers. |
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Blister packaging offers good display advantage. So, blister packaging helps customers to see pharmaceutical products, further aiding in their buying decision |
Strip packaging does not offer good display advantage |
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Blister pack occupies less space |
Strip pack occupies more space |
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A product is displaced from a Blister pack by pushing or peeling |
A product is displaced from a strip pack by tearing |
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In Blister packaging, blister/cavities are formed either thermoformed or cold-formed process. |
In strip packaging, thermoformed or cold-formed cavities are absent. |
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Two basic types of pharmaceutical blister packaging exist. • Thermoform blister packaging • Cold stretching blister packaging |
Strip packaging has no such type. |
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Blister packs use as a primary pack for a range of pharmaceutical products such as tablet, pill, capsule, suppository, vial, and ampule |
Strip packaging is an alternative primary packaging system that used to pack especially capsule, also tablet |