I orderd a kit from Connecting threads that included several batik fat quarters, including a couple of reds. The background will be black. Do I need to was these before cutting/sewing?

Reds tend to bleed a lot. I've heard the batiks do, too. You may want to use the Retayne also.

I would soak them in Retayne, following the bottles instructions before using any batik or hand dyed fabric :D:D:D

my batiks from connecting threads have not run very much yet. Reds do tend to be notorious as bleeders. If you are worried about them bleeding do a test in the sink. if they bleed wash with retayne. I just wash mine in the sink till they run clear. I haven't used any of the setters like retayne or synthorpe yet. but will be biting the bullet soon on them.

I have never used Retayne, where do you buy it?

most local quilt shops have it and so do many online shops.

My CT batiks didn't run much at all. I just prewashed with a color catcher.

What Color catcher did you use? The sales person at Connecting Threads said I would not need to pre-wash because their Batiks do not fade or bleed. But, I've read so much on hear about pre-washing, I'm a little afraid not to.

I use the Shout color catcher. It works for me if I prewash. I am not a prewash person though. Might have to on my red and burgundy batiks. Have had good luck with no bleeding on my batik quilts and I have done many. My favorite fabric. I do have retayne to use in teh sink to soak. If it bleeds the sink is great for washing out with lots of cold water.

Sounds like the kit I just received ;-) Thanks for asking this question.