Logwood, Campeche (Haematoxylon campechianum) Blauwhout [NL]
Family: Leguminosae Caesalpinioideae
For purple, 15% alum
Blue Grey with 2% Iron(II)sulphate
This dyewood was imported into Europe centuries ago and was an important natural dye for dyeing textiles in Europe.
Logwood is a petit-teint, and was therefore often used in combination with other dyes to achieve a grand-teint.
When you combine a logwood paint bath with a gallnut paint bath you can achieve black.
… is also called bloodwood
… leaves and bark are also used for medical purposes, for example against respiratory problems or anaemia.
… gives off a lot, so wear gloves 😉 😉
… was a valuable commodity in 1600 to 1800. Often traded by pirates. (wikipedia)
This is one of the products for natural dyes, which are described in the book Eco-verf by Anja Schrik.
Basic recipe for 100 grams of wool, silk or cotton to be dyed purple
– 50 grams of logwood
– 15 grams of alum
– 2 grams of tartaric acid
– 1 cup of vinegar
– electric cooker
– 2 old (cast iron) pans
– apron, gloves
– laundry bag or cheesecloth
– (glass) pots, buckets or containers
– 2 cups household soda crystals (if you are going to dye cotton)
Step 1: Wash (only if you are dyeing cotton, skip step 1 if you are dyeing wool or silk)
Fill a bucket with plenty of water and 2 cups of household soda and leave your cotton there for 24 hours. Rinse well the next day.
Step 2: Mordanting
Dissolve the alum and tartaric acid in a jar with hot water. Put 3-5 litres of water in a pan and add the mixture of alum and tartaric acid. Soak the wool, silk or cotton in a bucket of water and when completely soaked, add them to the mordant pan. Bring the temperature to 80 degrees (not hotter). Let this simmer for over an hour. Then let the fibres cool slowly in the mordant bath. You can leave this overnight or get started right away.
Step 3: Dyeing
Put the logwood in a laundry bag and place it in your dye pot with 3-5 litres of water.
Bring your dye bath to the boil and let it simmer for an hour.
Lower the temperature to 30 degrees and add the wool, silk or cotton. (Tip to speed up this process: put your pan in the sink with cold water)
You can leave the logwood in the laundry bag in your dyebath during the dyeing process. Make sure that the fibres can ‘swim’. Raise the temperature to 80 degrees and let it simmer for an hour.
Let the fibres cool down slowly in the dye bath.
1) For a dark purple colour, first soak the logwood in a litre of water for 24 hours. Then pour the decoction through a laundry bag into the dye pan.
2) After cooling, leave the fibres in the dye bath overnight.
Step 4: Fixation
Rinse the fibres and leave them for an hour in a bucket of water with 1 cup of vinegar. Rinse well again and hang to dry.
Oogst Natural Dye product philosophy
Tiring of quick-fix culture and instant gratification? Frustrated with the monotony of modern life? Are you yearning to make elegant and stylish products yourself?
Instead of falling victim to the ‘quick-fix’ mentality, take your time and create something relatively insignificant by today’s standards. Get back to nature with natural dyes.
The earth is our most precious resource. It provides everything we need, including the landscape in which we live, the food we eat, the air we breathe. It’s our foundation, grounding us in a steady rhythm of seasons. The fast pace of modern life has shifted what is considered valuable. What we need and even who we are has been redefined by a consumeristic society.
Let go of the impulsive convenience mindset. Break free from the urge to just consume. Create something new, make something on your own – using natural dyes – and reconnect yourself with nature. Discover the pleasure of Oogst natural dyes for yourself, getting back to basics with colours directly from nature.
There is something to be said about the process of creation. It is not only the final product that is important, but what led to its creation. We want you to experience how it feels to make something with your own two hands.
And why should that be complicated? The truth is that for hundreds of years before synthetic dyes came along, common folk were creating their own dyes.
We’re bringing back the lost art of natural dyeing. It’s easy to buy what you need at the stores just like everybody else, but when you dye your own projects you come away with something truly unique.
Explore the possibilities at Oogst.
The packaging material we have selected for Oogst natural dyes is made out of agricultural wase.
It is compostable and complies to the EN13432 directives for compostability and is also DIN CERTCO certified.
The package material is suitable for the food industry and helps perserving the materials.