Method for repairing surface defects in an image or picture film

Details Method for repairing surface defects in an image or picture film Method for repairing surface defects in an image or picture film

1981-06-29

1983-01-25

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Including post developing step

430463, 134 15, 352 56, G03C 524

Patent

active

043704085

ABSTRACT:
Picture or image films are repaired by spraying a repair liquid, such as perchloroethylene, onto the scratched surface of the film while the film is moving through a continuous or constant speed zone on its way to a utilization station. The repair layer has a thickness of a few microns, for example 2.5 microns.

REFERENCES:
patent: 1208664 (1916-12-01), Russak et al.
patent: 1380279 (1921-05-01), Wescott
patent: 2073082 (1937-03-01), Sandvik
patent: 2920960 (1960-01-01), Bushell
Crabtree et al, "Cleaning Liquids for Motion Picture Film", Trans. of SMPTE, Aug. 1927, pp. 277-293.
Turner et al, "A Machine for Cleaning Motion Picture Film", Journal of SMPTE, Jul. 1958, vol. 67, pp. 480-485.
Fassett et al, "Practical Film Cleaning for Safety and Effectiveness," Journal of SMPTE, Sep. 1958, vol. 67, pp. 572-589.
Journal of the SMPTE, vol. 66, Oct. 1957, pp. 607 to 615.
Fernseh- und Kinotechnik, vol. 34, Nr. 2 (1980), pp. 60 to 65, (Television and Cinema Technique).

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