Can I bleach yarn?
Regarding this, can I bleach acrylic yarn?
Acrylic yarn can not be bleached. In fact, that's one of the ways to test "mystery yarn" (for example, if you unravel a sweater you bought at a thrift store or second-hand shop). Snip off a piece and put in in bleach. If nothing happens, it's acrylic.
Additionally, can you bleach cotton yarn?
To safely bleach an item made of cotton, fill a bucket with cold water, then stir in 1/4 cup of bleach for every 1 gallon of water. Soak the cotton item in the bleach solution for 5 minutes if you're trying to remove stains, and for about 10 minutes if you're trying to lighten the color of the fabric.
Â But wool is acidic. When you combine acidic wool with basic household bleach, you get a chemical reaction called a neutralization reactionand the result is that the bleach dissolves the wool fibers into a goopy mess!