Printing on Fabric Tutorial
My favorite way to transfer images to fabric is to print them with my ink jet printer. I find this to me the most reliable technique and, because there are fewer mishaps, it's also the most economical. I wrote this tutorial when I was a member of Three Creative Studios around 2010 but these are the instructions that I still follow.
This PDF shows how I do it and also provides a comparison of pre-treated fabric sheet products.