LEONISLeonis Chaco Pen Water Erasable Marking Pen (Water Based)

Q: How well does the blue ink show up on black or dark fabrics? Will the pen ink cause dark fabrics to lighten after washing?

I've only used them on lighter Fabrics to mark quilts before quilting them. I've not had a problem with the ink causing fabric to lighten.

Q: Will this work for marking quilts? is it a better quality marker than the water soluble markers by dritz and wrights? how long are the marks visible?

The markers disappear with water dampened cloth. Beware if you are spraying 100 percent cotton with water it will shrink 30 percent if you haven't already prewashed it. I try mark very minimal then use a lot of steam after to shrink all of the fabric. The color completely disappears. I love these over chalk as I feel chalk rubs off and I don't get as fine of a line. They do not work on black or navy fabrics.

Q: Do you have to scrub/scratch the fabric a bit to get ink to show up? I'm looking for something gentler on my fabric/better ink flow

Thank you for the inquiry. This marking pen works same as general marker, so you can write fine line very easily. You don't have to scrub the fabric. Thank you.

Q: Blue ink disappears with water, but reappears later when I iron fabric. Is it never safe to iron, even after ink seems like it's removed by water?

Thank you for your inquiry. The reason why blue ink reappears is that the ink is not removed completely. The ink will be removed with water, but if you don't use enough water and the ink remains in the fabric, it might reappear when the fabric dries regardless of ironing.