Heat seal blister: The most commonly found form of blisters uses heat as a medium to seal the plastic to a special lacquer coated board. These blisters are sealed of different type of circular on continuous automatic blistering machines.
Cold seal blister: It is a pressure-sensitive packing using a blister card and a transparent blister. This blister is trapped in between two pieces of board which gets bonded under pressure without the use of heat.
The cold seal is typically used by clients whose products are heat sensitive. The only pressure is required to make a perfect board to board bond. We can also use materials such as Mearl Holographic & other laminated boards for sealing solutions.
This kind of packing is also being largely used in the Gold, Diamond & gems trade in a big way where the product has to be seen but also needs to be tamper-proof with a certificate with specific numbers.
Sliding blister: This form of blister pack can be reclosed after opening. The edges of the blister are folded on two or three sides. The blister card is inserted under the folded blister edges. Since these products are subjected to increased handling at the shelves we use automatic folding machines for finesse & to reduce huge labour costs of handling.
Warp-around blister: Wrap-around blister are perfect for packaging fragile products. The blister has hinged parts which are wrapped around the contents. In this way, the blister fully encloses the product for the best possible protection. Warp – around blisters can be closed without special equipment.