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4053312 |
O-sulfonamidonaphthol diffusible dye image providing compounds
Color photographic elements, diffusion transfer film units and processes are described which employ nondiffusible o-sulfonamidonaphthols which are alkali-cleavable upon oxidation to release a...
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4051123 |
Sulfonic-acid-group containing disazo dyestuffs
In a first main aspect azo dyestuffs of the formula ##STR1## wherein A, B, X and Y are certain substituents, in a second main aspect azo dyestuffs of the formula ##STR2## wherein B' represents...
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4047952 |
Imagewise soluble silver salt intensification of diffusion transfer silver images
The use of a soluble, reducible silver salt in combination with an imagewise exposed diffusion transfer photographic element comprising a negative silver halide emulsion and an associated physical...
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4013633 |
Yellow azopyrazoline dye releasing redox compounds for photographic color transfer
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer and one of said layers having associated therewith a yellow image dye-releasing...
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3998640 |
Photographic elements containing N-oxide oxidants
Heterocyclic N-oxides are useful as oxidants in photographic elements or film units.
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3998637 |
Process for producing positive color diffusion transfer images using redox dye releasers
Positive color diffusion transfer images are produced by a process that employs light-sensitive photographic elements containing dye-releasing redox agents. The dye-releasing redox agents may be a...
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3954476 |
Diffusable dye-releasing compounds which are cleavable upon oxidation
Novel azo magenta dye-providing compounds and photographic elements containing such compounds are described. The present compounds contain a carrier moiety which, as a function of oxidation under...
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3942987 |
Photographic materials with ballasted, alkali cleavable azo dyes
Azo dye-providing compounds and photographic materials containing such compounds are described. The present compounds, as a function of photographic processing under alkaline conditions, provide a...
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3933493 |
Amidrazones as dye components and developer scavengers in diffusion transfer materials and processes
A quick diffusion transfer process of forming color positive images by combining a photosensitive material portion prepared by superposing a photosensitive silver halide emulsion layer containing...
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3932380 |
Magenta image-providing phenylazo-naphthyl dyes
A magenta image dye-providing compound having a formula as follows: ##SPC1## Wherein: Car represents a carrier moiety which, as a function of oxidation under alkaline conditions, releases a...
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3931144 |
Magenta image-providing phenylazonaphthyl dyes
A nondiffusible sulfonamide compound which is alkali-cleavable upon oxidation to release a diffusible magenta color-providing moiety from a benzene nucleus thereof, said compound having a formula...
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3929760 |
Cyan image-providing phenylazonaphthyl dyes
Cyan azo dye-providing compounds having the formula ##SPC1## Wherein Car represents a p-sulfonamidophenol or p-sulfonamidonapthol carrier moiety which, as a function of oxidation under alkaline...
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3928043 |
Photographic elements containing iodoso or iodoxy oxidants
Iodoso compounds and iodoxy compounds are useful as oxidants in photographic elements or film units.
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3925075 |
Photographic dye diffusion transfer process using silver salt transfer for reversal
In a color photographic material positive color images are produced by the dye diffusion transfer process. The reversal is brought about by the silver salt diffusion process. The light-sensitive...
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3880658 |
Photographic elements containing oxichromic compounds with reduced azomethine linkages
Oxichromic compounds are disclosed, along with photographic compositions and photographic elements containing oxichromic compounds. In one aspect, the oxichromic compounds are those compounds which...
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3844785 |
COLOR PHOTOGRAPHIC DIFFUSION TRANSFER PROCESS AND PHOTOGRAPHIC MATERIAL FOR USE IN THIS PROCESS
For producing color photographic dye diffusion transfer images new dye-giving compounds of formula described hereinafter are used. The compounds are either mobile in alkaline processing solution...
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3734726 |
DIFFUSIBLE COLOR COUPLER MOIETIES ARE RELEASED FROM NONDIFFUSIBLE M-SULFOAMIDOANILINES OR M-SULFOAMIDOPHENOLS IN DIFFUSION TRANSFER PHOTOGRAPHIC PRODUCTS AND PROCESSES
Color, diffusion transfer photographic elements, film units and processes are described which employ a nondiffusible, substantially colorless m-sulfonamidoaniline or m-sulfonamidophenol which...
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3658524 |
PHOTOGRAPHIC FILM UNIT COMPRISING SILVER HALIDE AND A DYEABLE STRATUM CONTAINED ON A COMMON SUPPORT AND PROCESS EMPLOYING SAME
Novel systems for preparing dye images utilizing novel film units including a layer of a light-sensitive silver halide, a color-providing material disposed in this layer or in an adjacent layer,...
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3628952 |
PHOTOGRAPHIC DIFFUSION TRANSFER MATERIALS AND PROCESSES UTILIZING BALASTED HYDRAZONE COMPOUNDS TO RELEASE MOBILE ACID DYES FOR TRANSFER
In a color photographic diffusion transfer process are used diffusion-resistant dye-giving compounds, capable of forming diffusible acid dyes on reaction with oxidation products of black-and-white...
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3620730 |
NOVEL PRODUCTS AND PROCESSES FOR FORMING IMAGES IN SILVER AND IN DYE
Novel procedures for forming an image both in dye and in silver wherein an exposed silver halide layer containing a developable image is developed and as a function of development an imagewise...
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3620731 |
NOVEL PROCESSES FOR FORMING TWO NEGATIVE COLOR TRANSFER IMAGES
Novel systems for preparing a pair of negative images, utilizing film units including a layer of a light-sensitive silver halide, a color-providing material disposed in this layer or in an adjacent...
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3617275 |
DIFFERENTIAL COLOR MOIETY MOBILITY IN MONOCHROMATIC DIFFUSION-TRANSFER ELEMENTS AND PROCESSES
Novel systems for preparing dye images utilizing novel elements including a dyeable stratum and a layer containing a color-providing material which is nondiffusible but upon oxidation can release a...
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3498785 |
NOVEL PHOTOGRAPHIC PRODUCTS AND PROCESSES
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3443940 |
DIFFUSION TRANSFER EMPLOYING RINGCLOSURE TO RELEASE COLOR-PROVIDING MATERIAL FOR TRANSFER
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3443939 |
DIFFERENTIAL MOBILITY OF COLOR MOIETY IN COLOR TRANSFER
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3185567 |
Photographic color process and product
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3736136 |
Title is not available
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3674478 |
Title is not available
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3698897 |
Title is not available
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3585028 |
Title is not available
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3725062 |
Title is not available
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3698898 |
Title is not available
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3728113 |
Title is not available
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