I made a quilt for the building principal where each staff member drew a block. I used Sharpie FABRIC markers that I bought at Hobby Lobby. Someone used red permanent sharpie, and it bled when i washed the quilt.

when you write on the quilt, iron freezer paper to the back of the block and it will make it easy to write on - just like paper.

Your final choice is going to be determined by how fine or bold you want the writing.

Here's a picture of some of the blocks the staff did.

[ATTACH=CONFIG]541851[/ATTACH]

The whole quilt in case any one is interested..

[ATTACH=CONFIG]541852[/ATTACH]

I superintended an encouragement quilt in which I had people design squares. I had them use the micron pigma pens and it turned out beautifully. Sharpies can sometimes bleed when washed-especially the thicker points.

Sharpies do bleed a little if not used with a soft touch. But it's what I use, because it washes well. I only use it to label my quilts on the back. I have a question: would ironing over the signature once it is dry make the ink more durable?

Creative joy fabric markers, I used these fabric markers on a canvas bag and they worked perfectly. The ink comes out nicely and shows up very bright. My only critique is that some of the colors didn’t exactly match their description. For example, the light blue shows up much darker. Overall though, these are a good set of fabric markers especially for the inexpensive price.

Thank you for all of the information! I'm going to try the Nano-Liner.