Creating labels involves different methods based on the intended product and printing technique. Generally, labels fall into two categories: self-adhesive and non-self-adhesive. Self-adhesive labels are commonly used in roll-fed packaging and are printed using flexographic printing. Non-self-adhesive labels typically utilize offset printing techniques.
For flexographic label printing, the initial investment includes a flexographic plate fabrication system. A computer-to-plate (CTP) system is highly recommended, as it directly transfers pre-press files onto photopolymer plates, streamlining the process.
The flexographic printing machine itself is crucial. It should feature at least six color groups to ensure high-quality, vibrant prints. Optimizing the maximum printing format is essential for maximizing productivity based on initial production estimates. The machine should also have integrated components for finishing processes like UV varnishing, die-cutting, and metallic foil stamping to provide a complete label production solution.
For labels produced using sheetfed printing, a sheetfed printing press with a minimum of six color groups is necessary. The maximum print format should align with market study projections made before investing in the equipment. This ensures efficient use of resources and prevents unnecessary costs.
Like all sheetfed printing operations, a guillotine is essential. The maximum opening should match the printing machine’s format. A wide range of cutting formats is desirable to accommodate diverse label sizes. A programmable guillotine is particularly beneficial, as it enhances productivity by accurately cutting labels according to specified dimensions.
If the printing press lacks UV varnishing capabilities in its final group, a separate UV varnishing unit is crucial. This can be a dedicated UV varnishing machine or an adaptation of a standard sheetfed printing press, modified to exclude humidification and include a UV drying unit at the delivery end.
For sheetfed labels, a metallic foil stamping machine is also necessary. Depending on the scale of the business, this equipment can be automatic, semi-automatic, or manual. Finally, for labels with non-rectangular shapes, a tunnel puncher is required. The maximum processing dimension should be selected based on the target market’s needs and the range of label shapes being produced.