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Dyepot Weekly #66 - Dyeing Yarn in a Hydrosulfite Indigo Vat; Fixing My Failed Iron Vat

4,886 views · Published 21 August 2018 · 35:57 · Indexed 20 October 2026

Channel: ChemKnits Tutorials · 2018 · Howto & Style

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After the epic fail of my first iron vat attempt, I am going to try to start fresh and convert it to a hydrosulfite indigo vat to dye some yarn.  How will this work out for me?  Watch to see!  

Stony Creek Colors Indigo Vat Protocols (These ones work!) - https://dye.farm/pages/vat-recipe
Stony Creek Colors Indigo Hydrosulfite vat Kit - https://dye.farm/products/indigo-dye-kit?variant=12368027582545

In this video, I dyed 100 g of 100% cotton KntiPicks Dishie in the color Swan http://shrsl.com/13iaf and 100 g  of 100% wool KnitPicks Wool of the Andes http://shrsl.com/13iah (affiliate links)

Hot Plate - https://amzn.to/2LaGeS6 (Affiliate link) 
The art and craft of natural dyeing book - https://amzn.to/2AJ6DT9 (Affiliate Link) 

Watch how I got to this point.  My failed attempt at an indigo iron vat and how I isolated the indigo to start fresh.  
Indigo Vat Fail Part 1 - https://youtu.be/2nYqnJ-glMU
Indigo Vat Fail Part 2 - https://youtu.be/Jjg2Dzd2SCY

VIDEO CONTENTS:
[0:00] Introduction to where the project is
[1:53] Removing a little more liquid from our recovered indigo.  
[2:48] 3:1 ratio of Rit color remover:indigo. 50 g of 35% pure indigo = 17.5 g indigo.  One packet of Rit color remover is good to help jumpstart my new vat.
Adding the Rit color remover to my jar.  
[6:22] 30 min after adding the rit color remover (inverting the jar again) and talking about the colors
[7:59] After another 30 min (1 total) checking the level of settling.  I decided to wait 30 more min before setting up the big vat.
Add 1 tsp of soda ash (aka washing soda) 
[10:32] Making a large vat in a 5 gallon bucket out of my jar stock solution.  I started with warm tap water.  ~20 g of the Rit Color remover (I measured by weight.) + tsp of soda ash to the water.  Once those have been stirred in, I added my stock solution from the jar.  
[12:44] DYEING IN OUR VAT!  FOR REAL!  (not too much later, ~10 min later)
[18:02] Dip #2
[23:27] Washing, washing, and washing the yarn (outside)
[24:56] Washing the yarn (inside) I added a splash of vinegar to help neutralize the yarn.
[29:47] The finished dry yarns and conclusions


Indigo Week Playlist: https://www.youtube.com/playlist?list=PLFvm3Bz7dhaUhWpAn528NMk_i0rxa_l1L 

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