Digitally printed cans are revolutionizing beverage packaging, offering a seamless alternative to traditional labels and shrink sleeves. However, not all digital can printing is created equal. If you’ve ever encountered digitally printed cans that flake, peel, or chip, it often comes down to how well the ink adheres to the aluminum surface. Below, we explore the most common causes of these issues and why Aluminate's advanced process ensures durable, high-quality digitally printed cans.

1. Residual Oils from Can Manufacturing

During the manufacturing process, lubricants are used to shape flat aluminum sheets into three-dimensional beverage cans. One of the most persistent challenges in digital can printing is removing residual necking wax or mineral oils, which primarily remains on the neck, shoulder, and chime of the can. If these oils are not thoroughly eliminated, they create a barrier between the ink and the aluminum, leading to poor adhesion and, ultimately, flaking, peeling, or chipping.

2. Surface Treatment for Oil Removal

Many digital can printers attempt to remove surface oils just using flame treatment, but this method isn’t always effective. Aluminate takes a different approach with its PlasMAX approach, which provides a more thorough and consistent oil removal process. This ensures the aluminum surface is properly prepped for high-quality digital printing, reducing the risk of adhesion failure.

3. The Importance of a Primer Layer

Most generic digitally printed cans are printed directly onto the raw aluminum surface. Without a proper adhesion-promoting layer, the ink has a higher chance of chipping or peeling. Aluminate cans enhance durability by applying a clear primer before printing, creating a stronger bond between the ink and the can’s surface. This extra step significantly increases resistance to flaking, even under harsh conditions like refrigeration, moisture exposure, and shipping.

4. Ink and Curing Processes Matter

Not all digital can printing inks are formulated for optimal adhesion to aluminum. Inadequate curing processes—whether through UV or heat—can further weaken the ink bond. Aluminate’s advanced curing process ensures the ink is fully bonded to the can surface, preventing common issues like peeling or chipping. A properly cured ink layer ensures that the graphics remain vibrant and intact throughout the can’s lifecycle.

5. Choosing the Right Digital Printing Partner

If your brand relies on high-quality digitally printed cans, selecting the right digital printing provider is crucial. Generic printing methods may use shortcuts that compromise durability. By choosing a partner that prioritizes effective oil removal, proper priming, and advanced curing processes, you can ensure that your cans maintain their premium look from production to consumption.

Conclusion

Flaking, peeling, and chipping in digitally printed cans are often caused by poor surface preparation, ineffective oil removal, and inadequate adhesion methods. Aluminate’s advanced PlasMAX treatment and primer application provide a superior solution, ensuring that ink adheres firmly for a long-lasting, professional finish.

Looking for reliable, high-quality digitally printed cans?

Visit Lagersmith.com to learn how Aluminate’s advanced digital printed cans will make your brand stand out!