Don’t believe all you read on the internet.

I read somewhere that you can use OHPs for sun printing – print a design on them, layer them over fabric painted with silk paints, leave them somewhere warm and come back to find the design printed on the fabric.


As you can see, it doesn’t work.

I did have doubts about whether it would.  Sun printing works by evaporation, and I suspected the liquid wouldn’t evaporate under a sheet of plastic, whether it was printed or not., only round the edges. I should have trusted my instinct. It would probably work if I cut stencils from the OHPs, so I may try again later. It does prove, though, that it’s warmth that makes the print, not light.

I do have 4 rectangles of fabric with paler centres and a darker frame, so it’s not entirely wasted.