Method of drying photographic materials

Details Method of drying photographic materials Method of drying photographic materials

1993-01-28

1994-06-28

Gromada, Denise

Drying and gas or vapor contact with solids

Material treated by electromagnetic energy

Infrared energy

34 68, 34421, 34446, 34273, 34549, 34634, F26B 334

Patent

active

053235460

ABSTRACT:
A method for drying photographic materials from an initial moisture content to a desired final moisture content is provided. At least one side of a photographic material having an initial moisture content is heated, with a first heater stage, to achieve an intermediate moisture content in the material. The intermediate moisture content is less than the initial moisture content of the material and greater than the desired final moisture content. The intermediate moisture content of the material is measured and an output signal corresponding to the intermediate moisture content is provided to a control means. The material is then heated with a second heater stage to the desired final moisture content. The second stage heating is controlled using the output signal and the desired final moisture content.

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patent: 2309993 (1943-02-01), Skagerberg
patent: 2896058 (1959-07-01), Perryman
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patent: 4257172 (1981-03-01), Townsend
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patent: 4756091 (1988-07-01), Van Denend
Patent Abstracts of Japan, vol. 3, No. 93 (M-68), Aug. 8, 1979 and JP,A,5469689 (Mitsubishi Denki K. K.) Jun. 4, 1979.

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