idye for 100% silk chiffon dress with 100% polyester lining
  • I could really use some urgent help! I have a floor length medium grey dress from j.crew that I want to dye black. Even though the tag says the lining is 100% poly, it's really good quality do I think it might be cellulose instead of synthetic .. hopefully picking up the black dye.

    my concern is 1. if I use the regular and poly idye for this dress, will it shrink in length in hot water? should I use warm? will steaming the dress after lengthen the dress if it does shrink?

    2. I don't have my own laundry machine, will the dye be even if I use a large pot or use the bathtub??

    3. I've heard great things about this dye and my dress isn't a dark grey, but I know RIT will give me a dark purple instead of pure black - any recommendations for mixing the black with another color to set tone or should blk alone be fine?

    sorry, lots of questions!! just pressed for time and I have to make this work. I have experience dyeing, I've just never used idye and I really don't want this dress to shrink ...

    any help ASAP would be greatly, greatly appreciated!!


    THANK YOU!!
  • I would choose acid dye, such as Jacquard Acid Dye, to dye the silk black, and I would not bother to dye the polyester at all, because I think that boiling the polyester for an hour with disperse dye such as iDye Poly (the only way to dye polyester) might be bad for the silk.

    Black acid dye is by far the most reliable way to dye silk the color you really want. (Use a large amount of dye powder for black!) Leaving the polyester lining gray would be the best way to preserve the silk.

    -Paula

    --
    Paula E. Burch, Ph.D.
    hand dyeing FAQ, dyeing instructions, book reviews:
    http://www.pburch.net/dyeing.shtml
    please join the dye forum: http://www.pburch.net/forum
  • hmmm ... the lining is attached, so there's no way that i can only dye part of the dress ..

    this is it: http://www.jcrew.com/womens_category/weddingsandparties/Chiffon/PRDOVR~41367/41367.jsp

    will the idye just not work? or would you suggest definitely going with the acid dye?

    eek! i have to do this tonight .. the wedding is on Saturday ...

    thank you so much for your advice!!
  • Don't separate the lining from the dress; just don't bother to use a dye that will work on it. The silk dye will wash out of the polyester lining.

    Regular iDye will dye silk, but you might get a different color than you would expect on cotton. That's what happens when you use a cotton dye on silk. Different fibers take different dyes in different ways. You should certainly use black acid dye if you want to dye silk black. Use iDye on silk only if you don't care what color you end up with, or if you do a test on some similar silk and decide you like the color that iDye produces. iDye Poly will work on the polyester lining, but won't work on the silk.

    Oh, never mind. That dress you linked to is dry clean only. Never try to dye anything that is not washable! That's the first rule of dyeing. "Dry clean only" means that you cannot dye it. See my FAQ page, "Can I dye clothing that is labeled "dry clean only"?", at
    http://www.pburch.net/dyeing/FAQ/can-i-dye-dry-clean-only.shtml . Buy the dress in the color you want to wear it.

    -Paula

    --
    Paula E. Burch, Ph.D.
    hand dyeing FAQ, dyeing instructions, book reviews:
    http://www.pburch.net/dyeing.shtml
    please join the dye forum: http://www.pburch.net/forum