In screen printing, the type of ink you use affects the quality and ease of printing. In this first episode of "Deep Dive with Colin," we learn about short-bodied and long-bodied inks, their properties, and how they affect the printing process.
SHORT-BODIED INKS
Short-bodied inks, like FN White and those from QCM and Rutland, are like mayonnaise. They stay where they are placed and cut easily when scooped. This makes them great for printing detailed images and sharp edges. They work well at room temperature and need little stirring, making them easy to use.
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LONG-BODIED INKS
Long-bodied inks, such as Wilflex Bolt White and Wilflex Bright Tiger, are like honey. They run when scooped and need to be stirred and heated to work well. At higher temperatures (above 80-90°F), they flow better. They provide smooth and even coverage, making them ideal for high-volume production and automated systems. Long-bodied inks achieve high-opacity, detailed, and durable prints, making them a great choice for screen printers, especially for challenging substrates or designs requiring precision and control.
DEMONSTRATION
In the demonstration, Colin shows that short-bodied inks stay on the squeegee and are easier to clean. Long-bodied inks need higher temperatures to work well and are harder to use when cold. Short-bodied inks are easier to use for clean prints without needing high temperatures, while long-bodied inks, though harder to use at first, can give great results when warmed up.
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WRAPPING UP
Choosing between short-bodied and long-bodied inks depends on the print job and the working environment. Short-bodied inks are good for detailed and clean prints without needing high temperatures. Long-bodied inks need more preparation but work well when heated. Understanding these differences helps screen printers choose the right ink for their projects and get the best results.
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