THREADWORX - LAUNDERING & PRESSING
This is some information we received from ThreadworX which we thought may be useful.
Due to the strict regulations imposed by the FDA on dye chemicals no thread can be guaranteed 100% colourfast by specialty product manufacturers. The FDA, with the additional voice of the EPA, has removed many of the 'setting' ingredients (such as lead) in dyes, so now we must take special precaution with any coloured fabric or thread.
We seldom have a problem with our colours running but we cannot guarantee complete colourfastness.
Specialty threads must be treated gently! The threads must first be unskeined, put into a bathroom basin 1/2 filled with cold water with 2 tbls. table salt and 2 tbls. vinegar. Soak for 2 - 3 minutes, remove, blot with towel and let dry. This is recommended for any piece that will require washing. Please Note: HOT WATER and using a STEAM IRON and/or a damp cloth when pressing a completed project will reactivate dyes and cause bleeding.
If your work has been completed and the dyes have bled in washing then you must soak the piece in ICE WATER until the colour starts to bleed out. Remove from the water and run an ice cube over the problem area and then place back in fresh ice water to soak again. Repeat the process until the problem area is clear of dye. This may take continued effort, possibly over a few dyas, but it does work!