If thawed out to room temp, will frozen dyes still give good results?


Name: Wendy
Country: US

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Procion MX Fiber Reactive Cold Water Dye

Procion MX Dye

ideal for cotton, rayon, linen, and silk

When mixed with soda ash, Procion dyes are permanent, colorfast, and very washable. You can easily create a palette of brilliant colors ranging from light pastels to deep, vibrant hues.


Message: I don't think you've had this one yet.  I stored some leftover fiber reactive dye (mixed with urea water, but NEVER touched by any soda ash) a couple weeks ago & stored the leftovers in my daughter's old dorm fridge.  It got too cold and the dye froze.  If thawed out to room temp, will it still give good results?

The dye in your mixtures should not be harmed by freezing. It may settle out of solution, but if you allow it to return to room temperature, it should redissolve when you stir it or shake it. 

If one of your dye colors fails to redissolve, that could cause minor problems: particles of undissolved dye might clog your bottles' spouts, or make spots of more intense color on the fabric. That's the only concern that I would have.

I would expect frozen dye to stay good for a long time! Just be sure not to inadvertently overheat the dye solutions while thawing them, since the dye will go bad much more quickly if it gets hot.

Urea-containing solutions are bad if they start to smell like ammonia, because urea turns to ammonia, which will then raise the pH of the solution. As long as you can't smell ammonia, you don't have to worry about the urea itself.

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Posted: Saturday - October 31, 2009 at 11:06 AM          

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