Colors, Fabrics, and Longevity
Based on my client’s desire to offer solid-color t-shirts, it seemed that direct to fabric might be the best option (this I learned from one vendor). Direct to garment, the other option, seemed more appropriate for designs printed on the front of a shirt, for instance. The t-shirt would be held firmly in place in some sort of “jig,” and the design would be directly inkjetted or sublimated (for polyester t-shirts). This means the ink would be turned from a solid directly into a gas (bypassing the liquid phase, hence sublimation) using a heat press. This gas would migrate into the garment, solidify, and bond with the polyester fibers, providing superior durability and brilliant color.
Unlike the banners and even the table throws printed with UV ink or latex ink, the dye-based inks used in garment printing would actually go deeply into the fabric. They would not sit on top of the fabric. For clothing, this would be ideal.
I also learned that the dye-based inks could be either printed first on a transfer sheet (or “liner”) and then the images could be transferred through heat and pressure onto the polyester material, or they could be jetted directly onto the fabric and then bonded to the fibers of the fabric with heat and pressure.
Since the direct disperse method (the name for the direct printing option) would send the dye-based ink deeper into the fabric, this might be a plus, since my client’s t-shirts (which would start out as white shirts) could potentially be dyed all the way through the fabric (so the part facing the wearer’s body would also be in color). Apparently, the printing of an image or even a solid color via a transfer sheet would not go as deeply into the fabric.