Color in screen printing is achieved through a combination of processes involving inks and screens. Here's how it works:
- Artwork Separation: The first step is to separate the artwork into individual colors. Each color will require its own screen.
- Screen Creation: For each color, a mesh screen is coated with a light-sensitive emulsion. The artwork is then transferred onto the screen using a photographic process, creating an image that blocks light in the non-printing areas.
- Ink Selection: Screen printing inks are available in a wide range of colors. The choice of ink depends on factors such as fabric type, desired opacity, and colorfastness.
- Printing: The screen is placed over the fabric and ink is forced through the open areas of the screen using a squeegee. The ink transfers onto the fabric, creating a printed image.
- Curing: After printing, the ink is cured to ensure it adheres properly to the fabric. This can be done through heat, UV light, or a combination of both.
- Overprinting: By using multiple screens and printing one color over another, it is possible to create a full color image. Each color layer adds depth and vibrancy to the final print.