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| Finished anthotypes (first attempt) |
I have been experimenting with anthotypes, largely as a result of seeing some on instagram - for example, here by @jellywithcream. An anthotype is a print made using a solution made from plant materials that are light sensitive. It is a photographic process that John Herschel discovered in 1839 and Mary Somerville developed and documented it a few years later. There's a very useful guide on the Alternative Processes website here.
The solution of plant material is applied to paper and when dry, an object is placed directly on the paper. I have used leaves and flowers above but you could use keys, lace or solid objects. The paper and objects are then exposed to sunlight for a lengthy period. It is important the objects don't move during this period if you want a clear print so trapping them under glass helps keep everything in place whilst allowing the sun's UV rays through. The solution of plant material that I used was a combination of turmeric and alcohol which I painted onto a selection of papers. The alcohol acts as a binder and allows the solution to be easily applied to the paper. The alcohol in this case was surgical spirit but I understand you can use vodka (or probably anything with a high alcohol content e.g. hand sanitiser - but I've only tried surgical spirit).
My recipe was 2 tablespoons of turmeric powder dissolved in about 60 millilitres of surgical spirit. This mixture then has to be filtered - coffee filters are suggested but I didn't have any so used tissue paper in a funnel dripping into a jam jar. The result is a bright yellow solution which you can paint on to your paper. I only applied one generous coat of turmeric solution but I have since read that several coats, left to dry in between each, would give the best results. You should not leave these to dry in bright sunlight but I found it wasn't necessary to put them in a darkened place.
These are some of the plants that I laid on the coated paper to make prints...
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Leaves and flowers selected to make anthotypes
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I tried printing on both sketch pad paper and khadi paper and later on fabric and cardboard too. Paper that readily absorbs the solution works well...
These prints remain light sensitive or "fugitive" and will fade if left in direct sunlight, so are best kept in darker places. I hope to make some more anthotypes and use them in card-making and to use the fabric based ones in some textile work.
Let me know how you get on if you give it a go. You can use other plant materials, e.g. beetroot, berries and spinach, to make these type of prints but they may take several days to develop. If the plant material is very watery you may not need to use a binder. Happy experimenting!