Click the button below to subscribe to the Rusted Blog at

Natural Indigo And Tannins

May 18-19, 2019  –  10am – 4pm  –  R A W Textiles studio – Montavilla – Portland, Oregon

$ 255.00

Registration closes – May 16

This workshop is for all levels. There is nothing to stand between you and the magic of indigo blue.  Together we will create concentrates to start your own vat at home with the simple method of 1,2,3 , that was was first introduced by Michel Garcia. We will also create a large vat to share in our collective creativity.

What exactly makes indigo such an interesting and complicated plant?  What happens when it is combined with the tannin family?  How can we integrate this process in our work?  These are the subjects we will focus in this 2 day intensive.

We will be making silk and cotton samples of each bath  created with various tannins in the form of concentrates and harvested plant matter.  I plan on using oak gall, sumac, and Myrobalan and perhaps one more surprise tannin.    You will also be sampling from the indigo vat with multiple dips for color intensity to create an ombre effect with no mordants or tannins.  From there we will cross pollinate the tannin and indigo to understand the color shifts and chemical reactions. Finally, Rio will share shibori and some alternative methods to create pattern. This is a perfect time to discuss design and how you can incorporate this practice into your own work.  There will be a large panel of silk or cotton for each of you to create a  piece or several experiments to start your process.  You will also be taking home a small vat concentrate to begin your own experiments after you are armed with this knowledge.

Materials are included in the class fee.

Please bring a 16 oz to 32 oz wide mouth glass jar with lid for your concentrate vat.   I will not have any to give out.

You are welcome to bring any fabrics or yarn that  you would like to dip.


There will be a one hour lunch break.   I will provide  fruits and veggies with dips as well as iced tea or hot tea if you prefer.  Please bring food according to your needs.

If you are interested in this class please email Rio.  Specify which class you would like to reserve and I will send you an invoice.   There is no refund for cancellations after registration closes so please be sure you can attend when you sign up.

*This class has a 6 person maximum to ensure ample space to work and flow.


error: Content is protected !!