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Topic: Vinegar,alum, both?Coffee/tea/foodcoloring/koolaid  (Read 711 times)
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bookstorebabe
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« on: November 14, 2007 08:28:56 PM »

I want to dye some white cotton.I'm going to try different things-coffee,tea,koolaid,foodcoloring,just for fun.I've read most of this thread.My question-I know both alum and vinegar are mordants-which should I use? And would it be bad to use both?
I read about wrapping your fabric up in plastic wrap,after squirting it with koolaid/food coloring,then steaming it.Would you then rinse it in a vinegar/water solution? Mostly I think I'll just use the simmer in a pot of dye method.I appreciate any advice you can give me.Thanks!
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« Reply #1 on: November 14, 2007 09:41:26 PM »

Koolaid(or any other food grade dye) is technically an acid dye wh/ will not work with cotton unfortunately. At best it would stain your fabric. The same is true for coffee and tea. But it would eventually fade and have to be redone.

If you are wanting to try something new and get a more permanent color your best bet would be procion mx fiber reactive dyes. They are real simple to use. You can also find a similar class of fiber reactive dye at craft stores sold as Dylon Cold water dyes.

Though to answer your questions about mordanting...I amnot sure about combining vinegar and alum. Nor if they are safe to use combined and/or just redundant. In general mordanting is done after the initial dyebath.

HTH
Kathy
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« Reply #2 on: November 14, 2007 11:49:43 PM »

You can use both alum and vinegar because they can be used as both mordants and modifiers (before and after.) I only really know a lot about natural dyeing and if you were doing THAT you would need to treat any plant fibers differently than fibers such as wool and silk(such as they need to be pretreated with tannins.)
I'm pretty certain that all of those options for dyes that you listed will not dye cotton. :/
« Last Edit: November 14, 2007 11:50:11 PM by frankierevolver » THIS ROCKS   Logged

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« Reply #3 on: November 15, 2007 06:50:24 AM »

Thank you both-I'll look for the dyes you suggested,or try wool.I did take a natural dyes class maybe 20 years ago.We made our own dyes,and used different mordants to show how the same dye would react.The teacher supplied us with undyed carpet yarn.I had never heard of koolaid dyeing,ect.,until fairly recently,and thought it sounded like fun.Now I know!
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