text: if you are talking about printing color from a computer there are two different kinds of inks.  There are dyed inks and pigmented inks.  Both have completely different properties.  One good place to start is at Olympus.  They make high end photo printers and another is at Epson..  Now if you talking colored ink in general I found a web site that goes over the basics of all colored inks and it is at:   \nhttp://www.advanced-ink.com\nI hope this help answer you ink questions.