spacerbody | color | collections | commodity | cube | document | fabric | fetish | gender | glass | home | identity | living | machine | metal | minimal | mobility | narrative | olfactory | organic |
spacerpain | paper | plastic | plugs | power | protective | rectangular | ritual | round | sound | souvenir | spiritual | style | text-based | time | tool | touch | uniform | value | visual | warm | wood

spacer Photography: Fujichrome Velvia 5 pack spacer  

Narrative: Up to 15 coats of light-sensitive ingredients onto a flexible plastic surface. The first step in the process is to grow microscopic silver halide crystals from silver nitrate and halide ions. After the crystals are grown in solution to a certain minimum size, they are separated and mixed into a gelatin base. This mixture is washed to remove sodium, potassium, and nitrate ions and the resulting silver halide/gelatin emulsion is chilled and allowed to gel. This emulsion is both light and temperature sensitive and must be carefully stored. The emulsion is later melted and the silver grains are coated with chemical agents, dyes, and solvent-based materials, like cellulose triacetate, and extruded materials, like polyethylene terephthalate to enhance sensitivity to certain wavelengths of light. In its molten form, the emulsion is coated onto a support structure, usually a polymeric film.

Plastic films are dipped into a trough or tray containing the molten emulsion. As the film exits the trough, excess liquid is removed by a knife edge or air jets. Another coating method runs the film below a hopper filled with the emulsion. As the film passes under the hopper, the emulsion is dispensed onto the film. After coating, the emulsion is spread evenly on the film with rollers and is transported to a cooling chamber where the emulsion gels. Finally, the film is sent through a heated chamber which dries and hardens the emulsion. Multiple layers can be coated onto the film in this fashion and specific coatings can be added in order to control how light is reflected/absorbed. The last layer is a gelatin overcoat, which seals the film and holds the lower layers in place. After manufacture, film is typically wound onto spools and packaged in light-proof containers. These containers are designed to be opened and loaded into the camera without exposing the film to light.

This film was given to me at Fotocare from a box of expired film. This was what was left of the box. I've moved it from Brooklyn to storage to Queens to Manhattan and back to Brooklyn again.





  mary mattingly