If using the ChromaBlast quick connect R1800 bulk system these 110ml refill bags save you over 50% on ChromaBlast ink verses the use of normal ChromaBlast Cartridges. ChromaBlast™ is a unique patented ink and media combination driven by powerful print software to create the best cotton imaging system available. As heat and pressure is applied to the cotton, a chemical cross-link with cotton occurs. The result is a customized cotton shirt with soft hand, vibrant color and superior wash ability. See savings below.