Abstract:
The present invention is directed to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, binder, and dye-providing coupler, which method in order comprises: (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color negative image; (b) processing the developed film of step (a) by contacting it with a non-blocked developing agent, under agitation at a temperature of 30 to 50 DEG C under aqueous alkaline conditions, without forming a color negative image in the film by reaction of the non-blocked developing agent with dye-proving couplers inside the silver-halide emulsions, and (c) desilvering said film in one more desilvering solutions to remove unwanted silver and/or silver halide, thereby forming a color negative image; and (d) thereafter forming a positive-image color print from the desilvered film.
Abstract:
The present invention is directed to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, one or more organic silver salts, a binder, and dye-providing coupler, which method in order comprises: (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color image; and (b) scanning the color image to provide a digital electronic record capable of generating a positive color image in a display element, wherein the silver halide and the organic silver salts in the film are removed and/or stabilized before or after step (b), such that the film is in an archival state. Typically, a positive-image color print from the desilvered film. Optionally, the developed metallic silver can also be removed.
Abstract:
The present invention is directed to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, one or more organic silver salts, a binder, and dye-providing coupler, which method in order comprises: (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color image; and (b) scanning the color image to provide a digital electronic record capable of generating a positive color image in a display element, wherein the silver halide and the organic silver salts in the film are removed and/or stabilized before or after step (b), such that the film is in an archival state. Typically, a positive-image color print from the desilvered film. Optionally, the developed metallic silver can also be removed.
Abstract:
This invention comprises an imaging element comprising an imaging layer having associated therewith a phenolic activating agent in combination with a blocked color-forming agent of Structure (I) wherein PUG is a photographically useful color-forming agent, LINK 1 and LINK 2 are linking groups; TIME is a timing group; HET is a heterocyclic group, and the other groups are as defined in the specification.
Abstract:
A silver halide photosensitive material, wherein at least one of yellow, magenta and cyan couplers is contained in a mixed state in a layer of the same photosensitivity on a transparent support, a monochromatic picture being formed thereon by color developing a picture after it has been exposed, characterized in that, among the yellow, magenta and cyan couplers, the magenta coupler has the highest relative coupling speed with respect to an oxidation product of a color developing agent.
Abstract:
The present invention provides a photographic element comprising a support bearing at least one silver halide emulsion layer and associated therewith a coupler capable of releasing a development accelerator on colour development in the presence of a bi-nucleophilic agent, the coupler having the Formula (I) wherein COUP is a coupler moiety; T is a timing group and n is 0, 1 or 2; X 1 and X 2 are independently selected from an unsubstituted or substituted alkyl, -CH 2 OCOR-, -CH 2 COOR'-, -CH 2 NHCOR-CH 2 NRCOR', aryl or heterocyclic group, wherein R and R' are each an unsubstituted or substituted alkyl, aryl or heterocyclic group and R' may also be hydrogen; or X 1 and X 2 may combine to form an unsubstituted or substituted cycloalkyl ring, which may include one, or more heteroatoms selected from nitrogen, oxygen and sulfur; X 3 and X 4 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl or heterocyclic group; or X 1 to X 4 may combine to form an unsubstituted or substituted cycloalkyl ring which may include one or more heteroatoms selected from nitrogen, oxygen and sulfur; L is a linking group and r is 0 or 1 or 2; and A is a group capable of being adsorbed to the silver halide surface. The elements comprising the DARCs allow a speed and contrast increase under standard processing conditions. In addition, they can provide synergistic speed improvement when used in combination with electron transfer agent-releasing couplers.
Abstract:
A light sensitive silver halide color photographic element having a common chromogenic coupler and a distinct developer associated with each color forming layer unit is disclosed. In a first embodiment, the light sensitive silver halide color photographic element has a red light sensitive silver halide layer unit and a first blocked coupling developer, a green light sensitive silver halide layer unit and a second blocked coupling developer and a blue light sensitive silver halide layer unit having a third blocked coupling developer and wherein each layer unit has the same chromogenic coupler. In a second embodiment, the light sensitive silver halide color photographic element has a red light sensitive silver halide layer unit and a first blocked coupling developer, a green light sensitive silver halide layer unit and a second blocked coupling developer, and a blue light sensitive silver halide layer unit having a third blocked coupling developer. By means of the present invention, light sensitive color photothermographic elements can form yellow, magenta and cyan dye records of consistent density forming ability and conistent stability in all three color records. The present invention also relates to a novel blocked phenylenediamine developer useful in the imaging elements according to the present invention.
Abstract:
There is described a method of preparing black and white photographic print material which comprises imagewise exposing photographic black and white print material which comprises on an opaque base at least one silver halide emulsion layer of which the halide is at least 90 % silver chloride and which layer comprises a bleach-inhibitor releasing compound, processing the exposed material by means of a colour development step using a colour photographic developing agent and then through either a bleaching step followed by a fixing step or through a bleach/fix step to yield a fixed silver image in the black and white print material.
Abstract:
This invention relates to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, binder, and dye-providing coupler, which method in order comprises (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color image; (b) scanning the color image in the film without desilvering; (c) desilvering said film in one or more desilvering solutions to remove at least silver halide, thereby forming an improved color image suitable for scanning or optical printing, and (d) either optically printing or scanning the color image in the film following desilvering. In one embodiment of the invention, the film is scanned a first time in step (b) to obtain a relatively low quality scan and then scanned a second time after step (c) to obtain a relatively high quality scan that is used for making the positive image print.
Abstract:
The present invention is directed to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, binder, and dye-providing coupler, which method in order comprises: (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color negative image; (b) processing the developed film of step (a) by contacting it with a non-blocked developing agent, under agitation at a temperature of 30 to 50 DEG C under aqueous alkaline conditions, without forming a color negative image in the film by reaction of the non-blocked developing agent with dye-proving couplers inside the silver-halide emulsions, and (c) desilvering said film in one more desilvering solutions to remove unwanted silver and/or silver halide, thereby forming a color negative image; and (d) thereafter forming a positive-image color print from the desilvered film.