colour fixatives

[liza]

I have read through most of the dying info, and maybe I have missed it.

I have seen no mention of dye fixatives such as Retayne or synthantropol.

Is this because their use is not recommended? 

[Shepherdess]

I have used retayne on cellulose fibers but not wool. The best info I can give you is to got to Paula Burch's site. she explains what all the auxiliaries are and what they do. Its a great site with a ton of info explained much better than I would ever manage. www.pburch.net/dyeing.shtml

[MTRuth]

I use Synthrapol when rinsing cotton fabrics dyed with fiber reactive dyes but don't used it when I dye wool. Mainly because I don't want to have to rinse it out again. The wool has a tendency to felt the more you mess with it and the less handling it gets the better it seems to me.

[Pandagirl]

I've used synchrapol when preparing silk to dye.

[liza]

Thanks for the help!

The instructions form Dhara Trading say to use the Retayne after dying.  I had dyed a black silk scarf and black dye was still coming out after many rinsings. I used a bath of Retayne,and  lot of dye came out. After that a couple of rinsings and it came clear.