Like their name implies, heat sealers are machines, which are seal plastic packaging using a heat source. Plastic melts upon contact with heat, so heat sealers have to apply just enough heat to seal two plastic surfaces together without completely melting the plastic down. To seal two plastic surfaces together properly and cleanly, heat sealers have to combine pressure, temperature and time factors altogether during the sealing process.

One kind of heat sealer is called either Band type heat sealer, or continuous heat sealer. Heat sealers under this category rely on heated moving belts to seal multiple surfaces in a continuous series. Another kind of heat sealer is dubbed the impulse heat sealer which relies on a stationery heated element to seal plastic packaging together. Either way, they are great for sealing shut product packaging to prevent contents from leaking out. A heat sealer can be bought by the consumer in an intact and viable state.

When heat sealers have done their job properly, the product packaging can keep the contents safe from extremes in temperature, moisture, and compression from other items, and shock from sudden impacts during shipments and deliveries. Furthermore, this packaging controls the internal atmosphere so that the contents stay viable for the time intended by the manufacturer. One example of product packaging applications that utilize heat sealers is the potato chip bag. It’s able to keep the potato chips as crisp as the day they were packed because of proper heat sealant use. Food safety standards need to be followed, and heat sealers help keep the food contents of certain product packages clean and safe for consumers.

Heat sealers also offer another form of security. When the product packaging has been heat sealed shut, the consumer is assured that no one can tamper with the package without breaking the seal itself. That is why certain logistics companies also use heat sealers to seal shut shipments so that the recipient knows no one has tampered with the delivery after it was sealed shut. Retailers when wrapping up purchases for a customer may also use heat sealants.

If the integrity of heat sealers reaches excellence standards, the manufacturer can then safely offer a warranty on the product sealed within the product packaging. Take for example the potato chips again, a consumer who claims that the product came to him in a poor state has to provide the entire bag along with unconsumed contents to the manufacturer to substantiate his claim. If the consumer can show that the integrity of the product packaging has been infiltrated by undesirable elements like bacteria, then the manufacturer can be alerted that something is wrong with his manufacturing and packaging process somewhere. A systematic manufacturing and packaging process is easy to inspect for flaws when consumers provide valid proof that something is indeed wrong.

When heat sealers were not yet in use, consumer safety was easy to compromise. With the advent of the use of heat sealers, it is now easier for manufacturers and other companies to keep product packaging safe, secure, stable and viable in the timeframe indicated for the benefit of consumers. In short, heat sealers work.

Author's Bio: 

Buy AIE, TEW & MP heat sealers at reasonable rates from Hillas.com – your top provider of over 38,000 industrial packaging products and machinery online.