Dyeing with Onion Skins: Red or Yellow?

12 04 2016

Onion skins are one of my favorite natural dyes, with colors ranging from yellow with alum mordant to deep rust and brown (with iron).  I usually just mix them all in one dye bath… I’ve been curious whether red and yellow onion skins give different colors when dyeing silk, so I decided to do a test. I separated, then weighed out equal amounts of red and yellow onion skins, then simmered them separately in stainless steel pans for about an hour and let the dye cool and sit overnight.

red and yellow onion skin dye

Comparing dye color from red and yellow onion skins

I added some squares of silk into each pot: no mordant, alum pre-mordant, iron pre-mordant plus some cotton. The red onion skins gave a slightly darker, more muted color. I was surprised that pre-mordanting with alum didn’t make a difference in the color, at least this time. Simmering it longer, about 15 minutes, made more of a difference in color. The silk squares pre-mordanted with iron turned a very dark brown.

Dye test results

From front: Silk no mordant, with alum, simmered longer, iron mordant, cotton with alum

Onion skin dye test

Onion skin dye on silk: red on left, yellow on right

Results:

  • So far I still like the color I’ve gotten using a mix of red and yellow onion the best.
  • More onion skins to fabric and longer simmering times gave more intense colors.
  • Pre-mordanting the silk with Alum had little, if any, effect. (I don’t quite believe this one, so I’ll keep throwing test squares into future onion skin pots.)
  • Just a bit of iron mordant gives a very dark brown.

Here are a couple of examples of my eco printed scarves using onion skin dye.

scarf dyed with onion skins

Eco printed silk scarf dyed with onion skins (mixed colors)

eco print scarf with onion skin dye

Onion skin dye modified by iron, eco printed on silk with sumac leaves


*  Visit the Eco Print section of my ETSY SHOP. *


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5 responses

12 04 2016
Fran Belvin

These are so beautiful! Like wearing a garden.

Liked by 1 person

12 04 2016
Dawn Cameron

Excellent variable control – I love your scientific process and how you have beautiful results!

Liked by 1 person

21 11 2016
Kay

Beautiful😊😂💖 I really, really want the dark brown scarf above 🌟🌟🌟🌟🌟🌟🌟💖

Liked by 1 person

22 11 2016
dgamm

Thanks, Kay! I really like the way that one turned out too. I don’t have any really similar scarves right now. You can see what’s currently available on my Etsy site; see link right below the photo above. I plan to do more scarves with onion skins again soon, so if you’d like me to let you know when/if I have any similar to the brown one above, send me your email via Etsy, or visit my About page. Thanks, Diane

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25 02 2017

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