Plastisol inks are the most commonly used ink in commercial garment decoration. Plastisol ink consists of PVC particles in a suspension of liquid plasticizer and is used on textiles like t-shirts in the screen-printing process. Plastisol inks are recommended for printing on dark fabrics because they are so opaque. This ink sits on top of the fabric rather than soaking into the fibers. This type of ink will not air dry; it must be cured with heat, most often a device called a flash dryer. A temperature of about 350 degrees Fahrenheit must be reached for proper curing of Plastisol ink.