Plastisol inks are widely used in garment printing because they are easy to print, do not dry in the screen, can be opaque on dark garments, and adhere to most textiles. They are composed primarily of PVC resin ( a white powder) and plasticiser (a thick, clear liquid). Plastisol inks must be heated to 290-330° F (143-166°C) to dry (cure).
Plastisol inks can be printed on virtually any surface that can withstand the heat required to cure the ink and is porous enough to permit good ink penetration. Plastisol inks do not dye the fibres, instead the ink wraps around the fibres and makes a mechanical bond with the fabric. For this reason, they will not adhere to non-porous substrates such as plastic, metal and glass. They also will not adhere well to woven, waterproofed nylon without adding a bonding agent.