Natural Dyeing with Henna
Henna is well known as a body paint and hair dye, with a long history in creating simple to complex pattern and a range of natural shades in many cultures and rituals. It is also a classic textile dye, offering tannish-olive to fawn green hues.
Henna is a plant-based Natural Dye from the leaves of the herbaceous Henna plant. Henna loves proteins (hence its widespread use to color skin, nails and hair), so will dye wool, silk and other protein fiber and fabrics beautifully. It also works well on cellulose (plant-based) fiber and fabrics, but in less dramatic, lighter hues.
Henna is super simple to use. Simply add the Henna powder to your dyebath, stir and heat for 1-2 hours. Then add the damp/wet, mordanted items directly to the dye bath and cook on medium heat for another hour or more.
NATURAL DYE TIP
I recommend diluting powdered Henna dye in a small quantity of water (warm or hot is fine) before adding it to the dye bath. It will be much easier to thoroughly and efficiently mix in this way.
FIBER, pH & ADDITIVES
Henna isn't super picky. It's color expresses similarly on fiber and fabrics, with the exception being that cellulose tends to garner a lighter hue, with a softer greener undertone.
The pH of your dye bath doesn't affect Henna's outcomes much. But adding mordants, such as Iron, will bring a slightly darker, richer brown-grey tone to the hue.
HOW MUCH TO USE
A little Henna will go a long way. 50 grams will dye a varied quantity of items, dependent on the weight of those items and what shade of color you are looking for (dark, medium, lighter tones).
To achieve a richer, darker color, use approx. .75:1 to 1:1 (weight of Henna : weight of Dry Fabric). For lighter shades, use less dye. It will continue to dye in lighter shades till the dye has been used up. Use less for a lighter hue.
NATURAL DYE RESULTS
Want to see what kind of results Henna give on different fibers (wool, silk, cotton, bamboo, etc.) and with different mordants? Check out the results here.
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For more information on Natural Dyes and each step of the Natural Dye process, check out "Intro to Natural Dye," ANINI Designs' 48-page eBook.
I cover everything I teach in my 4-hour in-person Intro to Natural Dye Workshops, in addition to offering eco-friendly adaptions to the process.