For hot foil stamping the glue layer must be activated well and pressure needs to transfer from the carrier to the surface. Depending on the substrate surface, the transfer is easier or more demanding. Consequently different applications demand different characteristics of the applicator. For some applications rotary is better, for others flat bed has a great advantage.
The improvements in cold foil technology resulted in more and more competition for hot foil. Due to the higher tooling costs in hot foiling compared to a flexo cliché for cold foiling, many brand owners and printers relinquished the higher brilliance and better fine line quality of hot foil for the benefit of economy. But there is a major factor of economy that is often not considered: Hot foiling with a powerful foil saving system quickly overcomes the breakeven point between the costs of cold foiling and hot foiling. Despite the higher tooling costs in hot foiling, hot foiling may become much more competitive than cold foiling. Because the foil saving not only covers the tooling costs, it generates profit. Moreover, the higher brilliance, the sharper edges, etc. make a positive differentiation in quality.