How to dye cotton Yarn?
The reason why should the wool folks have all of the dyeing fun? Fiber reactive dyes are created specifically for dyeing plant materials: cotton, linen, rayon, hemp, ramie, bamboo - also rattan and nettle. The dyes tend to be safe, light and color-fast, are offered in a giant rainbow of colors, and certainly will color whatever originally came from a plant.
Fiber reactive dyes are also known as cold-water dyes, because they do not require large conditions to help make the dyes permanent: no microwaves or boiling water required.
Unlike acid dyes, these dyes respond in an alkaline environment, and so need the addition of a base in place of an acid to activate the dyes. My base-of-choice is soda ash (salt carbonate). You need to purchase soft drink ash in its pure form from a dye provider. However find it, verify it's pure and contains no ingredients or anti-caking representatives.
Various materials take dyes in differing amounts. Linen will dye a somewhat different shade than cotton, even if these are typically originally equivalent shade. Rayon takes dye vigorously and can color up in saturated colors. If you should be wanting to color a fiber a specific color, test first.
The last color in addition is dependent on the original color of the yarn. Remember yellowish plus blue makes green? In the event your initial yarn is red therefore dye it with blue, the yarn will end up purple. Cream-colored yarn will usually dye only a little duller than white yarn. If you should be trying to find really bright colors, focus on a bleached white yarn.
Orange yarn over-dyed with Fire Red, peacock-blue, and Plum.
You are able to color blends of fibers, including acrylic, polyester, or necessary protein fiber blends. Fiber reactive dyes will likely not dye synthetic materials or most protein fibers. The exclusion is silk, although I like never to color silk because of this - soda ash is harsh on silk fibers and silk sometimes lose its soft hand whenever colored in this manner. Silk must not be subjected to a soda ash option more than 12 hours or it will probably begin to destroy the fiber, so you must wash no later on than 12 hours after dyeing. Additionally, dietary fiber reactive dyes cannot create rather the same colors on silk as they do on cotton fiber - particularly black, which produces a purple, deep blue, or dark green as an alternative.
Dye outcomes depend on the yarn building and content, but generally most man-made/plant dietary fiber blends will appear heathered after dyeing and search a lot more pale than 100% plant fibre.
One unique note about cotton: cotton fiber may also be treated in an ongoing process known as mercerization, which makes the materials sleeker, shinier, plus receptive to dye. A mercerized cotton will color into much more brilliant colors than non-mercerized cotton. Mercerization isn't constantly marked in the yarn label, but it is typically an easy task to inform: mercerized cotton have a sheen, somewhat like silk. Non-mercerized cotton's area looks and feels more matte.