Kari Kari

I want to freshen up a pair of black jeans - they are 98% cotton and 2% spandex. Do I use just iDye Poly or do I need to also use the iDye for natural fibres?

Any advice would be appreciated.
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pburch pburch
Use a cool water [URL=http://www.pburch.net/dyeing/fiberreactive.shtml][U]fiber reactive dye[/U][/URL], Procion MX dye. It's better for the spandex. Spandex is heat-sensitive and does not like hot water. Check the care instructions; I'll bet they say to avoid hot water, which is required for dyeing with iDye.

There is no reason to even consider a [URL=http://www.pburch.net/dyeing/dispersedye.shtml][U]disperse dye[/U][/URL] like iDye Poly for a blend of 98% cotton/2% spandex. iDye Poly will not color the cotton at all, and, with that small percentage of spandex, you need dye only the cotton fibers. All you need is Procion MX dye, plus [URL=http://www.pburch.net/dyeing/FAQ/sodaash.shtml][U]soda ash or washing soda[/U][/URL] to set the dye, and [URL=http://www.pburch.net/dyeing/FAQ/salt.shtml][U]salt[/U][/URL] if you're dyeing in a large volume of water, such as in the washing machine.

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