Discuss the various aspects of heat press technology. Transfer paper, inks, plastisol transfers, vinyl cutters, printers, commercial usage, durability, suppliers, etc.
I am currently pressing tshirts, and whenever i finish one I notice a strange discoloration left by the heat press. I use a teflon sheet, could that be the problem, or am I pressing for too long (20 seconds at 360 degrees)?
Strange Marks 
