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How to make a Film Positive

A film positive is required when using the photographic screen process. It consists of an opaque image on a transparent sheet, such as acetate or prepared acetate, Mylar® or copier film. You can use vinyl stick-on letters, transfer lettering, india ink or ruby masking film. Or make your design on a computer and print it on a laser printer film.

A commercial printing company can convert your artwork to a film positive if you are unable to make your own. In order for any design to screen print well, your image must be sharp and in high contrast. If your colors are going to overlap, you need a film positive and a screen for each color; if not, you can use one screen, block out areas with masking tape, and print your colors progressively.

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