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31 May 2013 - 15:29103374
Dying (darkening) Nylon Spandex
Hey all, is there anyway to darken Nylon Spandex with dyes?

I recently made a large order of grey fabric and it's lighter than I thought it would be - so I am curious to know if there is a way I could "thin out" some black Acid Dye to darken the colour a bit.

Let me know your thoughts!


31 May 2013 - 17:26103384
Dying Nylon/spandex can be super tricky because of the synthetic fibres D:

I have dyed nylon tights with food colouring before but that's not as hard wearing as you would need for spandex I don't think... plus.. it went a lil patchy ><

Dylon have a special dye for nylon and lycra but they only have one shade of grey which may be too light anyways?

You could always try get your hands on some Rit-Dye as I've heard that that is pretty good too?

It's super tricky material to dye and the fumes (if using acid dyes) can pack a punch so please be careful!

Last edited by Bambi. (31 May 2013 - 17:27)
01 Jun 2013 - 16:25103425
Thank you! I'll give that a try with some samples

Hopefully that might work.

01 Jun 2013 - 19:36103435
Good luck!

03 Jun 2013 - 01:15103495
Hey Sam,

I'm gonna be doing a similar thing but with the iDye PolyBlack. I will let you know how it comes out but I know that Odangochan did this for her laughing octopus beauty suit so this is just another option But like Bambi mentioned dylon also have a polyester dye I will be doing mine as soon as he dye come through - again it is light grey I'm trying to darken so will post up test shots just for interest

03 Jun 2013 - 08:17103503
Thanks so much!

If it works out great for you then I'll definitely use the same method. May harass you for pointers too, haha.

03 Jun 2013 - 11:14103507
No worries I hope it goes well but if it goes horribly wrong it will save you from making the same mistake

05 Jun 2013 - 09:44103627
As gaming_goddess mentioned I've used iDye Poly before. I used the black for both my Laughing Beauty (matte foil lycra) and Ivy (SCIV)(polyester brocade) costumes and both times it came out not black, but a dark grey shade (which is great, as that's what I wanted!). I also used it for TheKillingDoll's Major Ocelot costume, which was probably polyester again, and took two rounds of dye to get black rather than dark grey.

Depending on how much you want to darken the colour, you can put it in for a single round of dye for a deep dark grey, or you can use smaller amounts of the dye in the same quantity of water to get a lighter result. The iDye powder comes in a soluble packet so it's a bit awkward to cut and separate out, but if you're careful not to stain things it's fine (you'll also need to portion out the dye enhancer liquid stuff). Try it with a smaller amount, then if it's too light give it another go with the rest of it.

I've been pretty happy with the results I've had with iDye so I can recommend it. You'll need the iDye Poly for man-made fabrics, and be sure to keep stirring/agitating it to make sure the dye distributes evenly and doesn't go streaky.

We'll also be experimenting with how it works on scuba jersey soon. I should probably buy shares in the stuff

EDIT: here's a shot of it used on the silver matte foil lycra, hopefully the link will work otherwise just pop on my profile and look at the journal entries for Laughing Beauty.

Last edited by Mighty Odango (05 Jun 2013 - 09:48)
05 Jun 2013 - 11:08103639
Thank you so much Odangochan! I really appreciate the lenghty comment, helps me out greatly. Your results are fantastic and thanks for letting me know that it will most likely take a dark shade as opposed to going black as I was thinking of "watering it down" but clearly that would be the wrong choice as it's a large quantity of fabric and needs to be quite dark.

Thanks again, you guys are lovely

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