More dye-sublimation substrates means more opportunity. Dye-sublimation is a beautifully simple and affordable method of customization. Simply print your design onto transfer paper and heat press it onto the available product blanks and dye-sublimation substrates. If you're looking to get into dye-sublimated soft-signage, apparel, décor, promotional goods and other highly profitable applications, then the RT-640 is the sublimation printing solution for you. Designed to combine superb quality, productivity and value with brilliantly simple operation, the advanced RT-640 Dye-Sublimation Transfer Printer is simply brilliant.