Open your art or graphic design program on your computer.
Insert one or more transparency sheets into the loading tray of your printer. You need an inkjet or laser printer to print on these sheets.
Open or import the image you want to print on the negative onto through your graphic program. Find the location on your computer the file is saved onto using the window that opens and click the "Open" button.
Convert the image to black and white -- this can vary depending on the exact program you are using. If you are using Photoshop, an easy way is to go to the "Image" menu, select "Adjustments" and click on "Desaturate."
Go to the "Print" command -- located in the "File" menu on most programs -- and print out the black-and-white image on the transparency.
Spread your emulsion solution onto the silk screen with a brush, squeegee-style tool or rubber printing block and place the negative image over the emulsion. The screen is now ready for exposure to strong or ultraviolet light.