Color Management in Can Printing Proofing: A Colorimetric Comparison of Conventional and Digital Technologies

Accurate color reproduction in metal can printing is critical for brand consistency and production efficiency, yet this field remains underrepresented in research, with most studies focusing on less complex printing substrates and processes. In beverage can decorating, high‐speed cylindrical printing and reflective surfaces make color management particularly challenging. This study evaluates the colorimetric reliability of conventional and digital proofing technologies used in dry offset can printing, with the aim of assessing whether digital proofing can function as a credible and operationally sustainable alternative to traditional methods. A widely used red spot color, representative of common industrial applications, served as the reference. Both systems were assessed using spectrophotometric measurements and visual evaluation. Results show that conventional proofing provides the most reliable prediction of final print outcomes, while digital proofing offers consistent color reproduction, faster turnaround, and reduced material use. Based on these insights, a hybrid industrial model is recommended—digital proofing as the primary tool for initial evaluation and collaboration, with conventional proofing reserved for final validation when necessary. Future research should expand toward a broader range of brand colors with complex visual designs, where limitations of digital proofing extend beyond color accuracy to full visual fidelity, as well as the influence of coatings.