Screen Printing - June/July 2013 - (Page 26)

T-shirts to Medical Trays An Intro to Ir conveyor Dryers The IR conveyor dryer has a home in applications beyond screen-printed garments. Mark Vasilantone Vastex International, Inc. One of the most critical steps in the screen-printing process is drying, or curing, of ink after it has been applied to the screen-printed product. This is accomplished by heating the ink to the temperature at which it cures, as a printed garment or another item passes through a dryer on a conveyor belt. Popular plastisol inks require cure temperatures of approximately 320-340°F, while other types of ink cure or bond at slightly different temperatures. Choosing between gas and eleCtriC Gas and electric dryers offer different advantages depending on budget, required capacity, available floor space, and the cost of gas and electricity. Gas dryers have an open flame that heats air within a chamber and transfers the heated air to the area through which garments or other printed items are conveyed. The heat is then transferred to the ink by air convection, equivalent to heating food slowly in a gas oven. An electric dryer, by contrast, uses infrared (IR) radiation that causes ink molecules to vibrate, generating heat that raises the temperature of the ink rapidly without heating the air around it, 26 screenprinting

Table of Contents for the Digital Edition of Screen Printing - June/July 2013

Screen Printing - June/July 2013
Editorial Insights
New Products
Standardization Secrets for Screen Printing
Eliminating Variables in the Screenroom
Decorating Trends in Team Wear
T-Shirts to Medical Trays: An Intro to Ir Conveyor Dryers
Distributor/dealer Directory
Opportunity Exchange
Ad Index

Screen Printing - June/July 2013