I've done a Rubber Stamping
I've stamped with rubber stamps on fabric for some of my small projects. I've used StazOn ink for this technique even though it states on the ink pad that it is NOT for fabric. It is a permanent ink and has not washed out or run when I have dampened it (usually to remove the purple air soluble ink quickly).
The projects I have stamped on have not been ones that will ever be washed (fabric postcards) and ones that would seldom, if ever, be washed (wall hangings). Because I've been questioned about the permanency of the ink on fabric and during laundering, I've stamped a test piece of muslin and laundered it 6 times.
This piece is after the 1st washing in a regular heavy duty laundering.
This piece is after the 6th washing in regular heavy duty laundering and about three times with a good dose of stain remover added to the load.
It definitely has faded some. Mostly with the first wash. There isn't much noticeable difference from the first wash to the 6th wash.
I know that it's rather difficult to photograph all these tests on different days with a variety of lighting although I placed them always in the same place and used an on camera flash. The facts are still visible in the stamping in any case.
For the projects that I use this technique on, I'm completely satisfied with the results that this ink is waterproof on fabric. I wanted to know that when I mailed my fabric postcards and they got wet from rain, or what have you, that the ink wouldn't run.
I will say that I have heard that VersaMark Ink is better on fabric. I don't know that this is true, and I was hoping to have been able to get a pad of this ink to test it with the StazOn, but I have not found it locally yet. However, I will find it and I will test it.
In the meantime, for me, StazOn ink works perfectly for my purposes.
Still happily stamping along,