Invented by John Herschel in 1842, cyanotype is a historical analogue photography technique famous for its deep blue, monochromatic images.
In the 19th century, plant studies, maps, plans (blueprints) and documents were recorded in this way.
This photogram technique is still very popular today.
This is a very simple photographic process that does not require a darkroom or laboratory equipment.
The cyanotype fabric sheet is already pre-coated and ready for use.
The processing is non-toxic and can therefore be carried out very well together with children.
How it works
- If possible, remove the cyanotype fabric sheet from the light protection bag in dim room light (away from UV or direct sunlight)
- Cover with objects, stencils, negative templates, plants, etc. as desired. There are no limits to your imagination.
Depending on the template, it may be helpful to weigh it down with a pane of glass
If you are covering the fabric in sunlight, work as quickly as possible or shade the fabric with umbrellas or similar.
- Depending on the intensity of the sun, expose to UV light for 3-10 minutes; alternatively, a UV lamp can be used.
Where UV light hits the cyanotype sheet a chemical reaction takes place.
- Rinse the exposed sheets with cold water for at least 5 minutes until the water no longer shows any discoloration.
The exposed areas turn blue.
- Within 24 hours, the cyanotype images dry and receive their deep blue image tone through oxidation
To speed up the process, you can optionally add a few drops of hydrogen peroxide to the washing water.
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Fabric care instructions: Wash printed fabrics in cold water with a phosphate-free detergent. Do not use a steam setting when ironing.
Size of the fabric sheet
1.52m x 2.13m, 1 sheet per pack.
Processing tips
To create negative templates, you can use our Solarfast printing films or Fotospeed DC Film and simply print your templates using the Jacquard printing program . Fotospeed DC Film is also available in large format rolls on request.
