The proper height of a flash dryer is an important consideration for any screen printer. The flash dryer is used to gel ink between prints, and it's important to position it correctly to ensure even curing and prevent scorching or burning of the fabric.
The ideal height of a flash dryer will depend on a number of factors, including the type of ink, the type of fabric, and the thickness of the print. As a general rule, the flash dryer should be positioned around 2-3 inches above the surface of the fabric, but this may need to be adjusted depending on the specific circumstances.
One way to determine the proper height for your flash dryer is to perform a test print. Print a small sample on the same type of fabric and with the same type of ink you will be using for your production run. Then, place the sample under the flash dryer and turn it on. Observe the fabric closely, and adjust the height of the flash dryer until the ink is cured evenly and without scorching or burning.
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It's also important to keep in mind that different types of fabric will require different curing temperatures and times. For example, synthetic fabrics may require lower temperatures and shorter curing times than natural fabrics such as cotton. Make sure to check the manufacturer's recommendations for curing times and temperatures, and adjust the height of the flash dryer accordingly.
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In addition to adjusting the height of the flash dryer, it's important to maintain consistent flash times and temperatures throughout the production run. This will ensure that all prints are cured evenly and with the same level of quality.
In conclusion, the proper height of a flash dryer is a critical factor in achieving high-quality screen prints. By performing test prints and adjusting the height of the flash dryer as needed, screen printers can ensure even curing and prevent scorching or burning of the fabric. By following best practices for flash dryer height and maintaining consistent curing times and temperatures, screen printers can produce stunning prints that will last for years to come.