Heat press refers to printing graphics on shirts using transfer paper and a heat press machine. A shirt is placed in the machine, and transfer paper is placed face-down over the shirt. The heating unit is brought down over them for a prescribed time to print the image on the shirt.Transfer paper is available for inkjet. The design must be flipped horizontally and printed to the transfer paper prior to use. It is also possible to silk screen onto transfer paper.
With heat transfer, the unit cost is low for short-run, full-color image, and good quality. Heat-press technology is capable of printing any digital image created in programs such as Adobe Photoshop.
Silkscreen is a versatile printing technique suitable for printing on shirts, paper, wood, plastic and glass. The design is transferred to a frame with screen mesh stretched taut across it. Ink is pressed through the screen with a squeegee.Silk screens are coated with a light sensitive photo emulsion. Graphics are printed on clear vellum and placed over the screen, then exposed to a strong light for a prescribed time. The image is developed with warm water under pressure.
Screen printing is cost-effective for volume order and with one or two-color printing. Silk screen works best with dynamic, iconic images specifically prepared for the medium.