Production and assemble manufacturing plants that ship large quantities of products and raw materials to storage warehouses and retail back room storage areas often have to bundle their goods together to ensure that the freight doesn't shift or move during shipping.
These companies rely on heat shrink tubing to wrap their products in plastic wrap. The plastic wrap comes in tubes of yards of the plastic film material that is then unraveled as it is wrapped around a pallet of products awaiting shipment to retailers and warehouses.
To make sure that the plastic wrap is tightly sealed to prevent any movement inside the wrapped load it is heated using a heat gun that looks a little like a hair dryer with a lot more heat packed inside the coils. The plastic film is then shrunk by the heat gun forming an air tight seal over whatever the plastic film from the heat shrink tubing is applied to.
In almost every manufacturing plant in the world there is a need and use for heat shrink tubing. Consumer products are especially prone to the uses of heat shrink tubing. Anyone that has ever purchased and compact disc or DVD knows that there is a protective plastic film wrapped around the outside of the case to prevent theft of the disc inside.
There are also security stickers tapping the cases closed underneath the plastic wrap. Both of these preventative security measures are taken to ensure that the consumer purchasing the finished compact disc or DVD will get what they paid for.
The plastic film containing the CD or DVD has been heat shrunk using heat shrink plastic. The case holding the electronic disc is placed inside a sleeve of plastic film that is typically open on one side or may be two separate sheets of plastic film depending upon the equipment being used. Once inserted the film is cut and sealed using a bag sealer that incorporates a heated wire that essentially melts the two open ends of the plastic film together sealing the contents inside. The left over air inside the sealed plastic heat shrink tubing is then subjected to a heat gun and shrunk under the heat to tightly seal in the contents.
Sometimes stacks of sealed CDs and DVDs undergo another round of heat shrink tubing to package them together in bundles for shipping. The process of wrapping and sealing heat shrink tubing assures the consumer that the end product they are buying has not been tampered with and comes directly from the producer.
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