04149322 is referenced by 14 patents and cites 4 patents.

A photographic emulsion coating on a travelling web 1 is irradiated by microwave energy propogated through a slotted, undulating waveguide 5 to condense or concentrate the coating by evaporating a significant percentage of its water content, thereby shortening the overall drying time for a given coating rate. A forced flow of air and/or other gases is established through apertures 9 in the waveguide under controlled temperature and humidity conditions, and the internal heating effected by the microwaves prevents the formation of a surface film which might impede subsequent drying.

Title
Drying concentration of photographic emulsion coating by microwave irradiation
Application Number
5/828118
Publication Number
4149322
Application Date
August 26, 1977
Publication Date
April 17, 1979
Inventor
Masaharu Ogawa
Minami-ashigara
JP
Minoru Minoda
Minami-ashigara
JP
Agent
Sughrue Rothwell Mion Zinn and Macpeak
Assignee
Fuji Photo Film
JP
IPC
F26B 3/28
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