Economy Insights

Beverages and food can preserve the taste and nourishing values ​​of their filling for up to numerous months. As a sign of such long storage times, the connections between the packaging and the food required to be minimized.

Cans are generally covered with an organic layer that protects the integrity of the can against the impacts of the food and stops chemical reactions between the container's metal and the food. To meet the technical and legal needs, coatings must endure the manufacture and sterilization procedures, be collectively applicable for all food and beverage kinds, follow to the can even after non-intentional distortion, stop chemical migration into food in measures that jeopardize human well- being, preserve the food and handle its organoleptic properties over numerous months and resist aggressive food types and defend the metal of the cans.

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Manufacturing of Cans

Cans are manufactured of 3 different materials: tin-coated steel, aluminum, and electrolytic chromium-coated steel. Can bodies be either shaped as 2-piece drawn and redrawn cans, or 3-piece welded cans? Independently of the material and the production process, most cans are covered externally and internally with films of 1 to 12 µm thickness. Coatings are generally applied to both borders of planar metal sheets or coils by roller coating before the cans are assembled.

Alternatively, coatings are gushed on preformed cans. Tin cans are utilized without external coatings for light-coloured, acidic fruits and juices for instance peaches, pineapple, and pears mainly due to tin is more simply oxidized than the food, therefore stopping darkening and flavor variations caused by corrosion of the fruits. Food cans are generally pressure-sterilized with particular conditions reliant on the food type. However, beverage cans might be sterilized or pasteurized in sealed cans or filled under disease-free conditions.

Can coatings have changed significantly with time, however, the aim and importance of can coatings continue unchanged. While the metal package is an answer for achieving a sustainable packaging sector, goods cannot be packed effectively in metal without the use of can coatings. Thus, for cans to work successfully as a supportable solution, they rely on constant innovation by can coating manufacturers .

Drivers 

The worldwide food and beverage sector has experienced significant development in the past few years, which is projected to remain in the coming years. This can be mainly credited to the growth in per-capita income, the surge in government guidelines, the development in the populace, and the growth in awareness among individuals about well-being.

Can coatings play a vital role in metallic packing applications in the food and beverage sector, as they aid in protecting the items in cans from external ecological factors, act as a fence between the internal surface and fillings of cans, and provide aesthetic appeal to them . Some of the food and beverage items packed in cans include beer, soft drinks, meat, flavored milk, mushroom, health drink, and corn.