Printmaking blues.

cyanotype-positive-001

Positive.

I made my first attempts at cyanotypes yesterday. Interesting process. Simple, really.

Reminded me of way back, during my mid-20s, when I worked as a draftsman for a civil engineering firm. I made a lot of blueprints in-office for field use. I’ll never forget the smell of ammonia.

Cyanotypes are pretty similar.

It takes mixing two chemicals – ferric ammonium citrate and potassium ferricyanide – and brushing the mixture on paper in subdued light.

The chemicals are non-toxic, but probably not good to ingest or inhale. Wearing gloves is a good idea.

Perfect? No. Cool? Yup. Fun? Definitely!

I made a cyanotype of this geometric pattern I created in Adobe Illustrator, which I printed out on a sheet of clear acetate.

I placed the acetate over the coated paper and sandwiched ’em both between a thin sheet of plexiglass and a backing board, holding everything together with clamps.

I set it out in the direct sun exposing the paper for about 8 minutes. I unclamped the printing frame, removed the paper, rinsing it under running water. I then dipped the paper into a tray that had a bit of hydrogen peroxide mixed in with water to help darken up the blue.

You can place any number of different things on top of the paper. Besides the graphic, I also used a small branch from a plant. I plan on using photographic negatives from my medium and large format cameras in the near future.

Perfect? No. Cool? Yup. Fun? Definitely!

There are bunches of tutorials on YouTube. Bunches.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s