What is a hot stamp foil?

Hot stamp foil, also known as stamping foil or foil stamping, is a decorative material used in printing and packaging industries to create shiny and metallic finishes on various substrates. It is often employed for enhancing the visual appearance of products, such as labels, packaging boxes, greeting cards, invitations, and other printed materials.

Hot stamp foils are composed of a thin metallic or pigmented layer, usually made of aluminum, that is coated with a heat-activated adhesive. The foil is supplied in rolls or sheets, and it requires heat and pressure to transfer its metallic or colored finish onto a surface.

The process of hot foil stamping involves several steps:

1. Preparation: The design or pattern to be stamped is engraved or etched onto a metal die, which acts as a stamping plate.

2. Foil selection: The desired hot stamp foil is selected, considering its color, finish, and compatibility with the substrate material.

3. Heating: The metal die is heated to a specific temperature, typically using a hot stamping machine. The foil roll or sheet is positioned above the die.

4. Stamping: The substrate, such as paper or cardboard, is placed beneath the foil. When the die comes into contact with the foil, the heat and pressure cause the foil to adhere to the substrate, transferring the metallic or colored layer.

5. Finishing: After stamping, the substrate is separated from the foil. The transferred foil layer remains on the substrate, creating a decorative, metallic, or glossy effect.

Hot stamp foils are available in various colors, finishes (such as metallic, holographic, or matte), and special effects (such as patterned or textured). They can add a luxurious and eye-catching element to printed materials, making them popular for branding, packaging, and high-end products.