I'm playing catch-up with the non-toxic printmaking classes, and as promised, some photos from the ImagOn day and cyanotype day!
|Applying ImagOn film to copper.|
|Vacuum frame and exposure unit (looks like a microwave).|
|Close up of Tom's home-made vacuum frame ready to expose a plate to the aquatint screen.|
|Developing ImagOn in washing soda.|
February 14th, Cyanotype day
I mostly taught this process with help from Tom since we are both really familiar with cyanotypes. The students had very good success and we even did some tannic acid toning. The process is simple: apply a light-sensitive iron salt solution to paper, expose to UV light or the sun using a film negative or various found objects, wash with plain water to develop the characteristic blue color. Once it's dry, you can tone it with tannic acid to change the color to brown or something in-between and if you are careful, you can create a split-tone image. You can also bring out more mid-tones and intensify the blue by dipping the print in a weak solution of hydrogen peroxide. I added about a cap full to our tray after the print was developed in plain water. (If you develop it in the peroxide right away, you loose much of the blue and the print ends up looking over exposed).
|Coating paper with solution.|
|Developing a print in tap water.|
|Intensifying the blue with a dip into a hydrogen peroxide solution.|
|A drawing on acetate.|
|A drawing on acetate- a film positive.|
|Leaves and string.|
|A toned print that turned a beautiful grey-taupe color.|
|Our toning trays set up.|
|Print soaking up the tannic acid.|
|A toned print made from a drawing on wax paper. Areas of blue in the brown-grey tone makes this a split-tone print.|
|A selection of student prints. My brown-toned demo prints are near the center.|
|A photographic image I used to create a valentine. Note the white heart in the lower right corner.|
It was Valentines Day, so a few students created a few fun valentine's "cards" for friends. With prompting from other students, I made the print of Barbie doll photo (See above) for the woman who works at the front desk at The Drawing Studio. She saved the workshop by providing hydrogen peroxide from the medicine cabinet for us to use for developing prints. It wasn't entirely necessary but it was really nice to have. We added the cut-out heart to the negative, toned the print and colored in the heart with red colored pencil. She was very surprised and pleased we had thought of her! It made for a nice ending to a long day of fun.
More next week!