Anyone dyed a bridesmaid dress?

I've not dyed a bridesmaid dress, but I've dyed a few other bits and bobs.

What kind of chiffon is it? As a general rule man made fibers (polyester etc) don't tend to dye very well. They will pick up a tiny bit of colour at most, but sometimes none at all. Whereas natural fibres eg cotton/silk tend to dye well and go the colour specified on the packet.

So I dyed a silk skirt which had a polyester lining, it was originally a pale pink, the silk dyed purfectly to the purple on the packet, the lining when to a pale pink with a purple tinge.

Thank you. It's polyester and quite a dark colour which I would like to lighten. Doubt it will work very well!

In that case, you'll need to lighten it before dying it, which doubles the risk of it going wrong. If it's polyester chiffon then it will be extremely hard to dye. If it's silk chiffon then it might take the dye but you need to be very careful with the lightening - for example, you shouldn't use bleach. Personally, I wouldn't risk it.

If it's dark then it needs to be lightened which can be difficult. Bleach obviously will lighten it, but then it also damages the fibres (if done too much it can make it pretty much disintegrate). I think there are other fancy products you can use to lighten stuff that is less damaging, but not sure of specifics.

Probs best not to risk it! (Or see if you can get a similar dress from a charity shop and try it on that before the bridesmaid dress!)