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Topic: CP soap won't turn blue  (Read 401 times)
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« on: December 12, 2007 12:44:34 PM »

So, I've made about 6 small batches of CP soap now. They've all been brown, though this was on purpose (chocolate mint, caramel apple, coffee, and milk & honey). None of them have been terribly pretty, just plain bars. Today, I wanted to make some cucumber melon, and make it like a cute little melon. Unforunetly (besides the soap setting too quickly), the soap refuses to turn blue or green. I am using soap coloring. It is quite happy to turn pink or yellow, but add any of that blue, and it turns a mushy brown and white, or even purple. What is the deal? I know that it is not the recipe because this is not the first time this has happened to me. Any ideas on why?
« Reply #1 on: December 12, 2007 01:00:07 PM »

It's reacting witht the lye. Just like bleach on denim gives you pink spots. Don't know if this will work but you can try either rebatching and see if post lye reactions the dye will take. Or try dry pigments. Like a colored cosmetic grade shimmer/glitter. It won't have the same effect of smooth color. But Hopefully that'll not bleach out from the lye.
« Reply #2 on: December 12, 2007 05:45:59 PM »

CP eats blue dye up. You can buy dyes especially for CP soap that work wonderfully, but the stuff from the craft store doesn't work.
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« Reply #3 on: December 16, 2007 03:16:25 PM »

Yep, what they said. I love ultramarine blue pigment, just check to see if it is oil or water soluble and then pre-mix (about 1/4-1/2 tsp pigment per lb of base oils, more or less for lighter or darker effect) with a couple tablespoons of either oil or water and add at trace. Brambleberry has a good price on pigments.

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