Foil stamping is a printing process that uses metallic or specialty foils to add a decorative design or effect to paper products. The material is bonded to the surface of the product using heat, pressure, and various chemicals, such as acetone or glycerine. This gives the finished product an attractive sheen, as well as a sense of luxury. It is often used for high-end products and services, but it can be applied to anything from business cards to invitations to envelopes.
While it is more expensive than traditional ink printing, foil stamping is an effective way to add a touch of elegance to your printed pieces. It offers a much more shiny finish than metallic ink and also allows you to achieve more precise designs, which is especially important for smaller items.
There are many different types of foils available, with a range of colors and patterns. You can even get holographic foils that offer a multitude of color depths and radiances to create a unique look. In the past, gold leaf was used for case-bound books, but the process has evolved over time and now uses metallic inks rather than real gold. Regardless of the type of foil you choose, it is essential to prepare your print job correctly for this process. This will help ensure that the foil adheres to the paper properly and does not cause any type of flooding (foil fill-in) in the end result.
The most common foils are silver and gold, but you can also find copper, red, blue, pink, and other metallic colors. Some types of foils can even produce different effects, such as a matte effect.
When choosing a foil, it is important to keep in mind that the color will be lighter than the color of the paper or product, so you will need to make sure that your design is well-balanced. You should also be aware of the manufacturing variance that can occur with the foil stamping process, which may affect how your print job turns out.
To avoid any confusion, it is best to submit two separate versions of your artwork files for your foil stamping project. One should contain the CMYK elements of your cover and the other should contain only the foil element. This will help prevent any issues with registration, as well as allow you to test how your design looks before it is produced in large runs. A good rule of thumb is to use a hard make-ready board like epoxy glass or phenolic to stamp the foil, as this seems to give the best results for small type and intricate designs. Also, try to avoid overlapping any foil or text with printed elements in the background, as this can create an appearance that is not intentional and may be difficult to remove later on. You should also note that your foil stamp cannot cross over the hinge or spine areas of the book.