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Dyeing with Sourgrass – Tingir com “Erva-Azeda”

April 23, 2013

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With the end of winter in Portugal, it is the end of sourgrass season – an invasive weed with gorgeous yellow flowers that thrives during rainier times of year. Even though I have already found more ways to make yellow dye than I could possibly use, I wanted to try my hand at this one, which I had read about it in Sasha Duerr’s excellent “The Handbook of Natural Dyes”.

Com o fim do Inverno em Portugal, é também o fim destas bonitas e infestantes flores amarelas, conhecidas como “erva-azeda” ou oxalis pes-caprae ( ou ainda, como eu sempre lhes chamei ,”aquelas flores amarelas” ), associada com o Inverno e a chuva. Embora já tenha conseguido mais maneiras de tingir com amarelo do que preciso, não queria deixar passar a oportunidade de experimentar esta quue tinha visto no excelente livro “The Handbook of Natural Dyes” da Sasha Duerr.

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I prepared flowers and stems together, using 2gm of sourgrass for each 1 gm of wool. The next day, I took out the plant-bits and got a clear bright yellow dye. I added the fiber – a 100% British wool aran-weight yarn -, mordanted with alum, let it simmer and sit in for another day in the cold dye. The result was this extraordinary bright yellow, the brightest I ever got from a natural dye.

Preparei as flores e caules, tudo junto, usando 2 gm de planat para cada de lã. No outro dia, retirei as plantas da panela e fiquei com uma preparação amarela. Juntei a lã – um fio Inglês 100% lã -, já preparada com alúmen, deixei ferver e depois deixei ainda o fio um dia na panela já fria. O resultado foi este amarelo extraordináriamente vivo, o mais vivo que eu alguma vez consegui com métodos naturais.

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But the surprising part came next. I left the skein out to dry under a plastic pan with laundry rising-water, so it wouldn’t drip onto the floor. During the night, the wind made the skein fall down and some of it got submerged in the water that had laundry detergent in it (a pretty alkaline solution). In the morning, the skein had a streak of clear bright orange! Apparently you can also use baking soda for this orange-turning effect.

Mas a surpresa veio a seguir. Deixei a meada a secar, a pingar para um recipiente com água de lavar roupa. Durante a noite, o vento levou a meada e ela caíu parcialmente nesta água cheia de detergente (muito alcalina). De manhã, a meada tinha uma madeixa de laranja! Aparentemente o mesmo efeito é obtido com bicarbonato de sódio.

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5 Comments leave one →
  1. April 24, 2013 11:27 am

    Amazing!

  2. April 24, 2013 1:18 pm

    Wow..that is incredible and SO inspiring!! Beautiful photos, too!!

Trackbacks

  1. Sourgrass, the Ultimate Dye – As “Flores Amarelas” | The Flying Fleece

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