I have done several and as far as I know, they don't come out. Good incentive to embroider neatly! I have also seen some vintage quilts and they still had the markings.

I just soak in cold water, and they have always come out for me.

I have never had an issue. I make sure I don't expose the piece to heat such as an iron or leaving in hot car. I throw in the washer on cold without detergent and run it completely through a cycle. If need be, I then wash like normal. Good luck.

I thought the blue washed out. Haven't done one since I was very young.

I have had some success with soaking in cool water for 30 min and then swishing about in the water. have better luck with the inside but the stitching line is almost impossible.

And there lies the problem. You just never know until you are finished. You might try asking the manufacturer before you purchase.

The kit I did recently for a customer...said the marks would not come out. It was a kit from 1980's. Some newer kits have a water soluble marking...but I've only found that in the blocks, not wholecloths.

They will lighten with age and washing's, but they never totally come out. The lines have to be covered up with your stitching (and that's a pain when the print is off). I have been known to use embellishments when a cross stitch, was printed wonky. Good luck

The embroidery transfer patterns that I used years ago will not come out. They were transferred onto my cloth with a hot iron. I have in the last few years bought some pre-printed crib quilt tops that will start to run if I get it wet. Unless I embroider then use crayons and color and heat set it - THEN the markings don't come out. I know better now. Keep it dry until it's completed and then wash it.

I have never been able to get them out...