December
29
/ 2022
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 |
| 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 |
| 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. |
| 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 |
| Blister packs are usually produced at higher speeds than Strip. | Strip packs are usually produced at lower speeds than the blister. |
| 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. |
| Provide more mechanical protection | Risk of product damage during handling /prone to mechanical damage. |
| More air entrapped onto blister | Less air entrapped, so provide more protection from air molecules and moisture. |
| Less child resistance | More child resistance |
| Easy to use | Strip pack is not usable by the elderly and patients with arthritic fingers. |
| 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 |
| Blister pack occupies less space | Strip pack occupies more space |
| A product is displaced from a Blister pack by pushing or peeling | A product is displaced from a strip pack by tearing |
| In Blister packaging, blister/cavities are formed either thermoformed or cold-formed process. | In strip packaging, thermoformed or cold-formed cavities are absent. |
Two basic types of pharmaceutical blister packaging exist. • Thermoform blister packaging • Cold stretching blister packaging | Strip packaging has no such type. |
| 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 |
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