During lockdown I was inspired to play with cyanotype printing. Luckily for most of that first period there was plenty of sunshine and I already had the materials. 

Earlier this year I was having a sort out and came across some of the prints I’d made back then. I do have some framed on the walls at home but the rest were experiments or compositions that didn’t work. As I added them to my collage stash I thought about returning to it and experimenting more. Having a series of heatwaves has definitely helped with this!

What is cyanotype printing? Making images using sunlight and paper coated with a light sensitive solution. It’s one of the earliest forms of photography – made famous by Anna Atkins who used the process to create botanical prints. I saw one of her algae prints when I visited the Natural History Museum earlier this year. Have a look here to find out more about her.

It’s an easy thing to learn and do – even if some results are inexplicably not what you expected!

What you need:

  • Cyanotype chemicals
  • Paper to print on – it can be fun to experiment with different types of paper but watercolour paper is a good one to start with
  • A dark box or lightfast bag to store your coated paper in
  • Glass and a board ( an old frame can be used for this) and some clips
  • Your subject – flowers and leaves are a good choice but anything that will create interesting shapes can work
  • A shallow tray or box for rinsing your prints in is also useful

How to print – the basics

  1. Paint the cyanotype solution onto paper in subdued lighting and then dry in a dark space for approx 24 hours – I put mine in a drawer
  2. Choose your subjects and arrange on your paper – again in subdued lighting
  3. Place under the glass and clip in place and expose it to direct sunlight
  4. Once the paper has turned a bronze colour it’s ready – remove from the frame and remove your subject from the paper. 10 – 15 minutes in strong sunshine is a good guide
  5. Rinse under cold water until the image turns blue – that’s where the magic happens! Move the paper in the water rather than just soaking it
  6. Leave to dry and watch the blue turn darker with time

And repeat!

If you want this to be easier you can buy pre coated paper.

Things I’ve learnt:

  • You have more time than you think to arrange your subject if you’re in indirect light
  • Use glass that is bigger than your paper to avoid clip marks
  • Mix a little of the chemicals at a time – store unused mix in a dark glass container
  • The heavier the glass the better
  • Add tape to the edges of the glass – some frame glass can be a little sharp!
  • Use as many clips as possible to really clamp the glass down for good contact
  • Trust the process – one of the first prints I did with dried hydrangea flowers – initially looked like it hadn’t really worked but on rinsing and leaving to dry the image became clearer
  • Take a photo of the just rinsed version if you like how it looks before it turns deep blue

Once you know the basic process there are so many ways to experiment:

  • Applying the solution in different ways – brush marks and rough edges can look great
  • Moving your subject during the exposure
  • Reapplying the solution and re exposing with a different subject
  • Using digital negatives printed on your printer
  • Adding soap bubbles to create wet cyanotypes (I did a lot of this last time)
  • Toning your prints with tea and other solutions
  • Using a UV lamp to carry on when there isn’t sun
  • Printing on fabric

All of which I intend to play with over the coming months. 

Recommended supplies: 

  • Jacquard Cyanotype Sensitiser Kit – enough solution to make 50+ prints 
  • De-ionised water for mixing the solution (tap water has chemicals in it that could alter the results)
  • Watercolour paper – 300g weight is good as it stands up to the rinsing
  • Brushes and foam applicators
  • Light fast box or bag to store pre coated paper
  • Cyanoptype paper – also called solar print paper: Lots of options from online retailers.

Books: 

  • Cyanotype: Learn in a Weekend by Victoria Glover – a good introductory book
  • Botanical Cyanotype: A Guide to the Art of Sun Printing : Sarah Bourne Rafferty (published in the UK at the end of this month)

Inspiration:

Some great people to find on Instagram

@caroline_south  – I have her mini kit that I can take with me when out and about

@atwaterdesigns – Sarah Bourne Rafferty author of the book mentioned above

@lilachillstudios

@katherinetjacobs – good for videos of her process creating huge cyanotypes