Eastman-kodak Company

Susan D Hill

Stephen P Singer

Anabisdally I Bodden

Philip T Lau

Jerrold N Poslusny

Robert F Romanet

Janet N Younathan

Jean-Fabien Dupont

Vicky Sinn

A black and white silver halide motion picture sound recording film is disclosed comprising a transparent support bearing at least one silver halide emulsion layer and an antihalation layer comprising filter dye which is incorporated in the form of a solid particle dispersion which is readily solubilized and removed or decolorized upon standard processing in the D-97 process as specified in Kodak publication H-24, so as to result in a minimum density of 0.07 or less. A method for printing an optical analog sound track in a motion picture color print film which comprises a support bearing light sensitive yellow, magenta, and cyan dye forming layers sensitized respectively to the blue, green, and red regions of the electromagnetic spectrum is disclosed, said process comprising: exposing an analog sound track in a black and white silver halide motion picture sound recording film in accordance with the invention and processing the exposed recording film to form a sound track negative image having a minimum density of 0.07 or less; printing the sound track negative image on the color motion picture print film by exposing the green sensitive layer while not substantially exposing the red sensitive layer; and processing the exposed color print film to form a silver plus magenta dye sound track image which may be read effectively with both an IR sensitive sound track reader and a red light sensitive sound track reader. Sound recording films which provide low Dmins in accordance with the invention require fewer lumens of light to print both analog and digital sound tracks. Films in accordance with the invention are magenta dye plus silver sound track enabling and provide a step toward the elimination of sound developer in the print processing operation. An unexpected performance feature of films in accordance with the invention is improved latitude in attaining excellent Dolby Digital Stereo sound performance by better matching the image spread between the sound negative and the print film.

Sound recording film

The invention provides a color photographic element that contains a coupler useful for forming a neutral silver-based image. Such couplers are particularly useful to provide an auxiliary silver-based image for optically recording a sound track in color motion picture films.

Color photographic element containing coupler useful for forming neutral silver-based image

The invention provides a color photographic element suitable for forming both a colored dye image and a neutral silver-based image, comprising a support bearing at least one light-sensitive silver halide emulsion layer containing a coupler capable of forming a colored dye upon development, and bearing a further light-sensitive silver halide emulsion layer containing a coupler which is capable of releasing a thiovinyl group upon development that is capable of reacting to form a neutral silver-based image.

A ballasted amine is incorporated in a silver halide photographic element which contains a 2,4-disulfonamidophenol which functions as a scavenger for oxidized developing agent. The 2,4-disulfonamidophenol serves to avoid color contamination while the ballasted amine serves to reduce dye stain.

Growing community of inventors

Rochester, NY, United States of America

Susan D Hill