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rhubarb is not just for pie

April 8, 2014

after chopping the roots into 1/2 inch cubes they were simmered for an hour and left to soak overnight

the pulp was strained off and the yarn simmered for approximately 1 hour then left to cool overnight

rhubarb can be used as a mordant itself,  but – in this case –  all the yarns were mordanted with alum

P1040738from the left – cotton, wool, silk

the cotton is pale but the yellow/gold on the wool and silk is “knock your socks off” strong

P1040739

rhubarb is sensitive to pH levels

an after bath made with washing soda with a pH of 9 changed the colour quickly

the skeins were in the bath a quick 5 minutes

P1040742an after bath of iron produced green on the wool and silk

as it can be harsh on both fibres I left the skeins in the water only as long as it took to give a good colour – 2-3 minutes

I put the pulp back in the weak dye bath and will soak for a week then dye again

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12 Comments leave one →
  1. April 8, 2014 8:37 am

    Told ya rhubarb root has great colour! Very pretty.

    • April 8, 2014 9:40 am

      Louisa – yep! you told me so – but it is a little too-o bright for me, it might hit the iron for just a minute.

  2. April 8, 2014 10:18 am

    Rhubarb gives such surprising yellow golds. And it keeps it’s strength, good luck with the second go-round.

  3. April 8, 2014 11:46 am

    Wow! This is like Tibetan Buddhist robes yellow. I love it!

  4. April 9, 2014 2:55 pm

    i’m wowed by this!

    • April 9, 2014 3:01 pm

      Velma – I’m really wowed by the strength of colour, it was only in the pot 20 minutes. hope the next lot is not so violent

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