Printing on aluminum cans makes definite contributions to the level of aesthetic quality and functional features. The study conducted in some quarters in 2022 by the Packaging Research Institute confirmed that it enhances scratch resistance, as with improved printing, a gain of 15% is considered in can scratch resistance, leading to more resistant cans to transportation and handling. For instance, large beverage companies like Coca-Cola and Heineken have invested in digital printing technologies to make their cans of high quality while vibrant, eye-catching designs can be achieved. Another critical factor influencing the general durability of the can surface is the type of ink used. According to research by the American Coatings Association, UV inks used in the printing process for aluminum cans can offer better protection against fading and abrasion, with some inks offering as much as 25% longer resistance to UV light compared to conventional inks. This means that cans will look good for a longer period, which is very important for limited-edition or collectible designs.
However, printing also has the potential to affect the can’s structure. Whereas the reality of the effect is very minimal, the addition of the ink layer can slightly affect the weight and balance of the can, though this usually falls within a 0.5% range and does not typically affect the overall performance of the can. The Can Manufacturers Institute says that any changes in the design or weight of the can must continue to meet the rigorous standards of the industry to ensure safety when using the can.
Printing can account for 10% to 15% of the total production cost of aluminum cans, depending on the complexity and number of colors in the design. Other recent packaging news: Starbucks, partnering with several different packaging manufacturers, is producing custom-printed cans for its new line of ready-to-drink beverages. Thus, it was able to have quality inks and sophisticated prints without sacrificing usability by assuring that their can would meet such high expectations as Starbucks.
Whether printing affects an aluminum can’s quality, according to experts in one voice, has significantly enhanced both its functional and aesthetic value. “While printing does add another layer to the can, the trade-offs for the brand in recognition, on-shelf appeal, and durability definitely outweigh the negative effects,” says John Higgins, Ball Corporation’s senior product manager. Indeed, this can be seen by the increasingly higher demand due to the printability of the aluminum cans-a combination of innovative functionality within a single package.
As technology continues to evolve, printing techniques are continuously improved, thus increasing the overall quality of printable aluminum cans. The companies that accept such development usually improve not only their brand image but also the efficiency of their operation.