We used http://pixlr.com/editor to make the negatives for our project. In pixlr, choose "Open Image from computer" and select the photo you want to work on.
Once your image is open, choose "Adjustment" and then choose "Desaturate" to turn it into a black & white photo.
Next, choose "Adjustment" and then choose "Invert" to convert the image to a negative.
You are now ready to print your negative.
Before you print, make sure to set up your printer's settings to print in greyscale or black & white. You do not want any color ink to print onto your negative.
Print the negative & you are ready for the next step.
We used foam brushes to spread the dye onto the t-shirts. You may wish to tape out your printing area so you have straight lines and so you don't have dye outside the printing area. You don't need to do this though, it's personal preference.
Once you have applied the dye to your shirt, dab the excess up with a paper towel.
Place your negative on your t-shirt with the sticky/printed side down. Use masking tape or clear tape on all sides of your negative to make sure your negative is making contact with the surface you are printing on. Leave no gaps to get the best print possible.
After about 10-15 minutes your shirt is ready to go!
Run your shirt through a hot wash using a couple of capfuls of the Inkowash. You do not have to wait for your shirt to dry completely before running it through the wash.