With DTG (direct-to-garment), designs are printed directly onto the garment and absorbed into the fabric. We use the DTG method for most of our t-shirts.
DTG inks are eco-friendly, CPSIA-compliant, non-toxic, non-hazardous, and soluble in water. They're free from heavy metals, formaldehyde, and Alkylphenol Ethoxylates (APE).
Opaqueness varies depending on the garment. Lighter weight garments with more cotton content, such as t-shirts will have a more opaque print result. Heavier weight garments, such as sweatshirts and hoodies, will have a less opaque print result because the fabric is thicker and will absorb the water based ink more. This results in seeing the garment through the print a bit.