Sealing the packets too tightly or too loose depends on the sealing of the packets done by manufacturers. Let’s take an example, you are sitting in front of the TV enjoying an evening with a nice packet of chips in your hand expecting it to open smoothly peel apart. A lot of strength is put on the bag to open but could not open and suddenly opens up with all the contents showered at you. The bag is sealed tightly with making your evening bad. It also may happen that when you open the bag it opens easily but the contents inside are stale as the air gets into it. Either way, the customer becomes unhappy and pays less respect to the brand of chips.
The seal sometimes open apart under various pressure conditions. For example, if the packets are transported in an aircraft or at high altitude areas. As the vehicle climbs higher, the air pressure drops. It causes the bags of the products to expand. As the bags are not sealed tightly, the seal breaks and the air gets into it making the products to stale.Lab Heat Sealer determines the sealing parameters of film, laminated films, coated paper and various flexible materials. It the best machine to test the freshness of the product as the freshness of the product can be judged from the seal of the packets.
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