Without adhesives for making impermeable packaging materials, such as laminated films, or for hermetically sealing containers, the present style of food retailing and self-service with its frozen products, ready-to-eat meals, and instant foods would be unimaginable.
FREMONT, CA: The adhesive people use in their daily lives to do minor repairs has long been used by industry. This glue, on the other hand, is typically buried between two or more substrates, out of sight of consumers.
Food Industry
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Without adhesives for making impermeable packaging materials, such as laminated films, or for hermetically sealing containers, the present style of food retailing and self-service with its frozen products, ready-to-eat meals, and instant foods would be unimaginable.
Bottle labeling is utilized here to demonstrate how seemingly simple “everyday” bonding applications are actually “high-tech” solutions: Using a stick of adhesive or a liquid paper adhesive, gluing paper together is simple. The strength is limited since it is determined by the tear strength of the paper surface. However, there is something unique about gluing labels to bottles: Because of the high working rates of automatic filling machines, the adhesive must have a high initial tack, and the label must be removed cleanly from a magazine. The label must not slip or ripple after being rolled onto the generally damp bottle. If the bottle is ever left out in the rain or if water condenses on the label, the labels must remain attached. Nevertheless, when the empty bottle is retrieved for reuse, the label must be easily removable during the rinsing stage before being refilled. All of these conditions are met by a unique casein adhesive, which attaches quickly, is resistant to water, and is soluble in the alkaline washing liquid.
Medical Industry
Adhesives are widely employed in the medical field, ranging from simple plasters to complex medical uses. Adhesives are also used in the creation of paper tissues and nappies, as well as in the protection of pills from moisture and the dressing of wounds. Transdermal patches, such as the nicotine patch, allow for the regulated release of nicotine into the bloodstream, assisting smokers in quitting.
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