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37.01 - Photographic plates and film in the flat, sensitised, unexposed, of any material other than paper, paperboard or textiles; instant print film in the flat, sensitised, unexposed, whether or not in packs.
This heading covers :(A) Photographic plates and film in the flat, of any material other than paper, paperboard or textiles.
Such plates and film in the flat (i.e., not in rolls), including film put up in disc form, are unexposed and are generally coated with a sensitising photographic emulsion. These may be made of any material except paper (e.g., paper "plates" used to produce negatives), paperboard or textiles (heading 37.03). The materials commonly used are glass and cellulose acetate, poly(ethylene terephthalate) or other plastics (for film packs or cut films), and metal or stone (for photomechanical processes). Certain plates, which when exposed and processed will be used for printing, are not coated with an emulsion but consist wholly or essentially of photosensitive plastics. They may be affixed to a support of metal or other material. Some of these plates must have their degree of sensitivity enhanced prior to exposure and other plates must have the degree of hardening of the irradiated sections (thermally) enhanced after irradiation.
These goods are put to many uses such as : (1) Plates, cut film and film packs for amateur or professional use. (2) X-ray plates and flat film including those for dental radiography. These goods are generally sensitised on both sides. (3) Photomechanical process plates of the type used for photoengraving, photolithography, etc. (4) Special plates and film for use in microphotography, photomicrography, astronomy, cosmic ray photography, aerial photography, etc. (B) Instant print film in the flat.
This is also sensitised, unexposed and in the flat. Instant print film consists of a sensitised sheet of any material (the negative), a sheet of specially treated paper (the positive), and a developer, for instant production of finished positive photographs. Instant print film may be presented as a pack (a cartridge or canister containing several sheets of instant print film) designed to be loaded directly into a camera, or a box containing a number of individually usable sheets.
However, instant print film in rolls, sensitised, unexposed, is excluded (heading 37.02).
The heading also excludes :(a) Non-sensitised plates and film in the flat (classified according to their constituent material). (b) Unexposed rolled film (heading 37.02).
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