Colour printing with Spirulina alge


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  1. Introduction
  2. List of materials
  3. Algae paint
  4. Screen printing


Spirulina is known as a superfood plant source of protein, minerals, vitamins, and antioxidants. But also contains some usefull pigments. Here is a small manual on how we used spirulina alage to screenprint.

Credit: María Boto Ordóñez

2.What you need

-Screen printing frame
-A Squeegee
-Harvest spirulina or spirulina powder
-Acrylic resin
-textile medium
-Jars to mix paint colours
-Some test papers.
-A fabric or paper where you want to print your design on.

3. Algae paint

For screen printing mix half acrylic resin half textile medium, add an amount of algae until you have the colour you want. The more liquid you add to the algae, the algae becomes more blue. Its nice to make several colours of greens and bleu. Algae pigment is UV sensitive and will disappear overtime after being exposed to sunlight. The process of this depends on the material you print on. Paper it can last form weeks till a few months, on textile it last from days to a few weeks. This proces can be delayed with fixers. Also it depends on the paint, the more algae you add (the more darker colour) the longer the pigment last. So it can also be used in a design, to use lighter colours on the parts you like to blur out first.

4. Screen printing

  1. Mix 50/50 acrylic resin and textile medium in a jar. Add some algae until you have the colour you like. Mix until any clumps are gone (this takes a while)
  2. Prepare your screen, translate your design on the screen (We used sticker paper to create a design on the downside of the screens, but it can also be used on different silkscreen techniques)
  3. Place your screen on the piece of fabric or paper you want to use, you might want to make a test print first to check if the design works and the paint is thick enough, if the paint us to liquid add more acrylic resin.
  4. Add some algae paint on the screen with a spoon and make a line of paint, this is the best way to fill the whole screen.
  5. use the squeegee to spread out the paint on the screen. Repeat until all the empty spots are filled.
  6. Lift the screen carefully from the paper/textile.

Credit: María Boto Ordóñez

Thanks to: María Boto Ordóñez


Waw! Thank you! Could we imagine one day to be able to print with these materials with our classic printers? :slight_smile:


Yes would be awesome! :slight_smile:


This comes close actually!