The art and science of mounting boards are as old as the offset printing process itself. It's a critical stage in preparing artwork for printing, ensuring high-resolution images and text are transferred accurately and uniformly. One of the key steps in this process is mounting board framing.
Mounting board framing involves securing a photographic print or graphic design onto a sturdy baseboard, typically using hinges, tape, or spray mount. This procedure ensures the artwork stays flat during the exposure and printing process, minimizing distortion and maintaining image quality.
Understanding Mounting Boards
Before diving into the framing process, it's crucial to understand the types of mounting boards available. They come in various materials, thicknesses, and finishes, each with its unique advantages. The primary materials include Sintra, foam core,plywood, and melamine.
Sintra, a PVC-based material, is durable, lightweight, and moisture-proof. Foam core, comprising a foam inner layer sandwiched between two layers of paper or cardboard, is excellent for graphics requiring a light but sturdy base. Plywood and melamine board provide a rigid, heavy-duty alternative for larger or heavier artworks.
Choosing the Right Board
Selecting the appropriate mounting board depends on the artwork's size, weight, and the type of finish required. For instance, Sintra is ideal for outdoor or wet environments, while foam core is best suited for indoor use.
Additionally, consider the board's flatness and surface smoothness. Any irregularities can transfer onto the final print, resulting in uneven ink distribution or a compromised image.
Preparing the Board
Before mounting, the board must be cleaned thoroughly to remove any dust or debris. If necessary, you may need to sand the surface lightly to create a smooth, non-reflective finish.
Measure and mark the artwork's dimensions on the board. Allow a border of about 1/8" to 1/4" for trimming after mounting. Ensure the marked space aligns with the board's centerline to avoid crooked framing.
Mounting the Print
The actual mounting process varies depending on the technique used - hinging, taping, or spray mounting. Each method offers unique advantages and challenges.
Hinging
Hinging allows for easy removal and replacement of the artwork. It's ideal for situations where you need to change the print regularly, like in a gallery setting.
Use acid-free hinging tape or photo corners. Apply a small piece at the top and bottom edges of the print, close to the board's surface. Gently press the artwork onto the board, ensuring it's straight and level.
Taping or Gluing
Directly taping or gluing the artwork onto the board provides a permanent fix, ideal for one-off prints or those not requiring frequent changes.
For taping, use archival-quality, acid-free tape. Apply strips along the top edge, bottom edge, and one side. Press the print firmly onto the board. Repeat on the opposite side.
For gluing, apply a thin, even layer of spray mount or archival glue onto the board. Allow it to set for a moment, then press the artwork onto the board, starting from one edge.
Always ensure the artwork remains flat during the drying process, if necessary, using weighted objects or a press.
Trimming the Edges
Once the artwork is secure and dry, it's time to trim the excess borders. Use a matte knife or utility blade on a cutting board or a paper trimmer for a clean, precise cut.
If you used hinges, make sure not to cut through them. They should remain intact for easy dismounting.
Mounting board framing is an essential step in the pre-press process, ensuring your artwork remains secure and flat throughout the printing procedure. It's a skill that improves over time, so don't hesitate to practice and experiment with different boards, techniques, and tools to find what works best for you.
Happy printing!