EP0068249B1 - Procédé de diffusion de colorant par transfert - Google Patents

Procédé de diffusion de colorant par transfert Download PDF

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Publication number
EP0068249B1
EP0068249B1 EP82105149A EP82105149A EP0068249B1 EP 0068249 B1 EP0068249 B1 EP 0068249B1 EP 82105149 A EP82105149 A EP 82105149A EP 82105149 A EP82105149 A EP 82105149A EP 0068249 B1 EP0068249 B1 EP 0068249B1
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Prior art keywords
compound
color
layer
dye
compounds
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EP82105149A
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German (de)
English (en)
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EP0068249A1 (fr
Inventor
Werner Dr. Krafft
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Agfa Gevaert AG
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Agfa Gevaert AG
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/32—Development processes or agents therefor
    • G03C8/36—Developers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes

Definitions

  • the invention relates to a process for producing a color image according to the color diffusion transfer process using non-diffusing coloring compounds (color releasers), in which higher color densities and in particular a more uniform development of the three sub-colors yellow, purple and cyan are achieved by using a special combination of development accelerators in the alkaline developer preparation becomes.
  • non-diffusing coloring compounds color releasers
  • the latter contain a carrier residue which has a ballast group and a redox part and is constructed in such a way that a diffusible image dye bound to it is released in an inversely proportional manner to the state of development of the silver halide layer under alkaline conditions. It is therefore a system that works positively from the start and is suitable for producing positive images using conventional negative silver halide emulsions.
  • the invention relates to a method in which paint releasers of the function described last are used.
  • color transfer images are obtained within a desired short development time which are unsatisfactory in terms of the color densities and the color balance obtained, i.e. the maximum color density and gradation of the individual partial color images are within the short development time is difficult to reconcile.
  • various compounds can be added to the developer preparation as development accelerators. A number of such compounds is described in "Research Disclosure", 15162 (November, 1976).
  • the object on which the invention is based is to produce colored images using the color diffusion transfer process, the highest possible maximum color transfer being achieved within the shortest possible development time using the smallest possible amount of development accelerating agent.
  • reducible dye releasers used according to the invention release a diffusible dye under alkaline development conditions by reduction or as a result of a reduction.
  • Reducible color releasers are described in DE-A No. 2809716, 3008588,3014669, EP-A No. 0004399 and G B-A No. 8012242.
  • the alkyl radicals represented by R 1 , R 2 , R 3 and R 5 in the formula can be straight-chain or branched and generally contain up to 18 carbon atoms. Examples are methyl, n-propyl, tert-butyl, tetradecyl, octadecyl.
  • the aryl radicals represented by the radicals R 1 , R 2 and R 3 mentioned are, for example, phenyl groups which can be substituted, for example by long-chain alkoxy groups.
  • acylamino radical represented by R 3 the acyl group is derived from aliphatic or aromatic carboxylic or sulfonic acids.
  • the fused-on rings completed by R 2 and R 3 are preferably carbocyclic rings, for example fused-on benzene or bicyclo- [2,2,1] -heptene rings.
  • An alkyl radical represented by R 4 can be straight-chain or branched, substituted or unsubstituted and contain up to 21 C atoms. Examples are methyl, nitromethyl, phenylmethyl (benzyl), heptyl, tridecyl; Pentadecyl, heptadecyl, ⁇ C 21 H 43 .
  • Preferred embodiments of the color releasers used according to the invention are those in which R 1 , R 2 and R 3 together in a quinoid carrier radical contain no more than 8, in particular not more than 5, carbon atoms, and R 4 is an alkyl radical with at least 11 carbon atoms represents.
  • R 1 is an alkoxyphenyl radical having at least 12 C atoms in the alkoxy group and R 2 , R 3 , R 4 together contain no more than 8 C atoms.
  • Residues that make it diffusion-resistant are those which make it possible to store the compounds according to the invention in a diffusion-resistant manner in the hydrophilic colloids which are usually used in photographic materials.
  • Organic radicals which generally contain straight-chain or branched aliphatic groups with generally 8 to 20 C atoms and optionally also carbocyclic or heterocyclic, optionally aromatic groups are preferably suitable for this purpose. With the rest of the molecule, these residues are either directly or indirectly, e.g. B. connected via one of the following groups: -NHCO-, -NHSO, -, -NR-, where R is hydrogen or alkyl, -O- or -S-.
  • the diffusion-proofing residue may also contain water-solubilizing groups, e.g. Sulfo groups or carboxyl groups, which can also be in anionic form. Since the diffusion properties depend on the molecular size of the total compound used, it is sufficient in certain cases, for example if the total molecule used is large enough, to use shorter-chain residues as diffusion-preventing residues.
  • water-solubilizing groups e.g. Sulfo groups or carboxyl groups
  • the color releasers preferably used in accordance with the invention accordingly contain, per dye residue A, a diffusion-resistant abs p altable quinoid carrier residue of the formula: Carquin in which R 1 , R 2 , R 3 , R 4 , R 5 have the meanings already given.
  • the residues of dyes of all classes of dyes are suitable as dye residues insofar as they are sufficiently diffusible to be able to diffuse through the layers of the light-sensitive material into the image-receiving layer.
  • the dye residues can be provided with one or more alkali-solubilizing groups. Suitable alkali-solubilizing groups include carboxyl groups, sulfo groups, sulfonamide groups and aromatic hydroxyl groups. Such alkali-solubilizing groups can already be pre-formed in the dye releasers used according to the invention or can only result from the cleavage of the dye residue from the carrier residue which contains ballast groups.
  • dyes that are particularly suitable for the process according to the invention, mention should be made of: azo dyes, azomethine dyes, anthraquinone dyes, phthalocyanine dyes, indigo dyes, triphenylmethane dyes, including dyes that are complexed or complexable with metal ions.
  • the residues of dye precursors are to be understood as the residues of such compounds, which are the usual or additional processing steps in the course of photographic processing it can be converted into dyes by oxidation, either by coupling, by complex formation or by exposure of an auxochromic group in a chromophoric system, for example by saponification.
  • Dye precursors in this sense can be leuco dyes, couplers or dyes that are converted into other dyes during processing. Unless a distinction is made between dye residues and the residues of dye precursors, the latter should also be understood below as dye residues.
  • the reducible, reductively cleavable color releasers are used in the process of the present invention together with so-called electron donor compounds (ED compounds).
  • ED compounds electron donor compounds
  • the latter act as a reducing agent, which is consumed imagewise during the development of the silver halide and, in turn, with its unused portion reduces the assigned color releaser and thereby causes the dye to be split off.
  • Suitable ED compounds are, for example, derivatives of hydroquinone, benzisoxazolone, p-aminophenol or ascorbic acid (e.g. ascorbyl palmitate) which are not or only slightly diffusing and which are described, for example, in DE-A No. 2809716. Suitable ED compounds are also described in DE-A No. 2947425.
  • the ED compounds can also be present in a masked form as so-called ED precursor compounds, which themselves do not act as reducing agents with respect to exposed silver halide or reducible coloring compounds, but under the alkaline development conditions are converted into the actual ED compounds.
  • An aromatic ring represented by R 1 in formula can be a carbocyclic ring, for example a phenyl, naphthyl or anthryl group, or a 5- or 6-membered heterocyclic ring with at least one of the heteroatoms N, O, S as a ring member, for example an imidazolyl , Thienyl, oxazolyl, pyrryl or pyridyl group.
  • the carbocyclic and heterocyclic aromatic rings can be unsubstituted or mono- or polysubstituted and contain fused carbocyclic or heterocyclic rings, which in this case need not be aromatic.
  • Suitable substituents on the aromatic rings represented by R 1 and optionally on rings fused to them are: halogen such as fluorine, chlorine, bromine or iodine, hydroxy, sulfo, sulfamoyl, trifluoromethylsulfonyl, amino, nitro, cyano, carboxy, carbamoyl, alkoxycarbonyl , Alkyl, alkenyl, cycloalkyl, in particular cyclohexyl or cyclopentyl, aryl, in particular phenyl, or heterocyclic groups, where the last-mentioned groups (alkyl to heterocyclic groups) may contain further substituents, for example those of the type mentioned above and where the alkyl, Alkenyl, cycloalkyl, aryl and heterocyclic groups are attached either directly or via one of the following divalent connecting members: -O-, -S-, ⁇ SO 2 -, ⁇ SO 2 ⁇ NR ⁇ , NR
  • alkyl or alkenyl groups present in formula II in the radicals represented by R 2 , R 3 , R 4 or in the substituents present on the aromatic ring represented by R 1 can be straight or branched and contain 1 to 22 carbon atoms.
  • R 2 , R 3 or R 4 or present as a substituent in R 1 corresponds to the formula: wherein R 5 and R 6 are the same or different and denote hydrogen, alkyl or aryl or the ring members required to complete a 5- or 6-membered cyclic amino group (example: pyrrolidino, piperidino, morpholino).
  • the entirety of the substituents present in the ED compound is such that the ED compound can be embedded non-diffusively in photographic layers.
  • at least one of the substituents present for example at least one of the radicals R 1 , R 2 , R 3 and R 4 , or a substituent on a ring completed by at least two of the radicals mentioned, for example R 3 and R 4 , contains a diffusion-inhibiting compound The rest.
  • a diffusion-resistant storage of the ED precursor compound is particularly desirable because these compounds are used in a certain quantity relation to the assigned color releasers, which if possible also during prolonged storage of the photographic recording material should not change significantly.
  • the ED precursor compounds of the formula which are preferably used according to the invention are, for example, the subject of DE-A No. 3006268. Examples of ED precursor compounds preferably used according to the invention are listed below:
  • the color photographic recording material processed by the process according to the invention generally contains three image-forming layer units, each of which contains at least one light-sensitive silver halide emulsion layer and a combination of a non-diffusing, reducible coloring compound (color releaser) and an ED compound (or ED precursor compound).
  • One of the layer units is predominantly sensitive to blue light, another for green light and a third for red light, the assigned color releasers each providing complementary colored image dyes.
  • Assignment and assignment is understood to mean that the mutual arrangement of silver halide emulsion, ED compound or ED precursor compound and color releaser is of such a type that an interaction between them is possible, that an image-like correspondence between the silver image formed and the consumption of ED Connection on the one hand and a reaction between the unused ED compound and the coloring compound on the other hand, so that an imagewise distribution of diffusible dye is produced in accordance with the undeveloped silver halide.
  • light-sensitive silver halide and a combination of color releaser and ED compound need not necessarily be present in the same layer; they can also be accommodated in mutually adjacent layers, each belonging to the same layer unit.
  • the ED precursor compounds which are preferably used according to the invention are stable to hydrolysis under neutral conditions and are therefore also insensitive to oxidation; this makes them particularly suitable for use in a common emulsifier together with the paint releasing agent.
  • hydrophobic compounds are usually incorporated into photographic layers are suitable for the incorporation of paint releasing agents and ED compounds.
  • the usual emulsification techniques come into question, e.g. Methods by which photographic auxiliaries are added to the casting solutions in the form of emulsions using so-called oil formers. Appropriately, methods are avoided in which the use of alkali is inevitable.
  • the color releasing agent is generally used in a layer in an amount sufficient to produce a color image with the highest possible maximum color density, for example in an amount of 1 to 20.10-4 mol / m 2 .
  • the amount of the ED compound (or ED precursor compound) is matched to that of the paint releasing agent. It should be large enough to achieve the highest possible maximum color density, ie in order to be able to reduce the color release as completely as possible. On the other hand, it should not be significantly higher than is necessary for this, so that the reducing agent at the exposed areas can be used up as completely as possible through the development of the exposed silver halide.
  • the most favorable quantitative ratios between silver halide, ED compound and paint releasing agent are in individual cases expediently determined on the basis of routine tests.
  • Useful results can be obtained, for example, if the ED compound is present in 0.5 to 5 times the molar amount, based on the color releasing agent.
  • the suitable quantitative ratio between silver halide and assigned color releaser is approximately in the range from 2 to 20 mol of silver halide per mol of color releaser.
  • the non-diffusing reducible coloring compounds are used in combination with negative working silver halide emulsions.
  • all customary negative emulsions can be used, provided they can be developed sufficiently quickly.
  • These can contain silver chloride and silver bromide as silver halide, optionally with a silver iodide content of up to 10 mol%.
  • Separating layers are expediently present between different layer units, which can contain compounds which react with diffusing development products and are able to prevent their diffusion from one layer unit into another. This helps to ensure that the assignment is always limited to one shift unit.
  • Such compounds are known, for this purpose, for example, non-diffusing hydroquinone derivatives and, for example, the scavenger compounds described in the publication " Research Disclosure", 17842 (February 1979) are suitable.
  • Last but not least, ED connections can also take over this function if they are embedded in a separating layer between different layer units.
  • the interaction between the exposed silver halide and the ED compound is generally accomplished through the oxidized form of the silver halide developer used.
  • the latter is imagewise oxidized during development and the oxidation product is in turn able to oxidize the ED compound and thus to avoid the reaction with the paint releasing agent.
  • Suitable silver halide developing agents are hydroquinone and its derivatives, pyrocatechol and its derivatives, p-phenylene diamond derivatives and 3-pyrazolidone compounds, in particular 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 4- Hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone, 1-phenyl-4-methyl-3-pyrazolidone, 1-phenyl-5-methyl-3-pyrazolidone, 1 phenyl-4,4-bis (hydroxymethyl) - 3-pyrazolidone, 1,4-dimethyl-3-pyrazolidone, 4-methyl-3-pyrazolidone, 4,4-dimethyl-3-pyrazolidone, 1- (3-chlorophenyl) -4-methyl-3-pyrazo- lidon, 1 - (4-chlorophenyl) -4-methyl-3-pyrazolidone, 1- (3-chlorophenyl) -3-pyrazolidone, 1- (4-chlorophenyl)
  • a combination of different silver halide developing agents can also be used.
  • the silver halide developing agents can be contained in the highly viscous alkaline developer preparation or in whole or in part in one or more layers of the color photographic recording material to be processed.
  • Essential components of the aqueous developer preparation used in the method according to the invention are the alkali required for development and the combination of development accelerators according to the invention.
  • Such a combination contains at least one compound from at least two of the three substance groups A, B and C defined below.
  • the compounds of group A are aliphatic 1,3-diols with 3 to 10 C atoms. Typical examples are: 1,3-propanediol, 1,3-butanediol, 2,2-dimethyl-1,3- propanediol, 2-methyl-2-propyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, 2, 2,4-trimethyl-1,3-pentanediol, 1,3-diethyl-2-methyl-1,3-propanediol.
  • Substance group C includes arylalkanols and aroxyalkanols with a total of 7 to 12 carbon atoms, e.g. Benzyl alcohol, 2-phenylethanol, 2-phenoxyethanol, 3-phenylpropanol, 1-phenyl-2-propanol.
  • a further advantage of the developer preparation according to the invention lies in the fact that the various development accelerators, as individual substances, apparently act to different extents on the development of the various imaging layer units. It is thus possible, by varying the quantity ratio of the individual components within the combination of development accelerators according to the invention, to influence the development of one or the other image-forming layer units more strongly and thus to better adapt the three partial color images to one another with regard to the maximum color density and color gradation, so that overall a more balanced one is easier Color balance is maintained.
  • the total amount of development accelerators in the developer preparation used according to the invention is generally between 10 and 50 g / l.
  • the optimum quantitative ratio of the individual components of the combination of development accelerators is generally between 1: 4 and 4: 1 and can easily be determined by a person skilled in the art on the basis of simple routine examinations.
  • development accelerators especially from group C, are only sparingly soluble in water; these are preferably used in amounts below their solubility concentration. If the developer preparation according to the invention contains development accelerators from all three groups of substances A, B and C, the third component in the combination is generally present in a concentration of less than 30, preferably less than 15% by weight.
  • the developer preparation used according to the invention can contain further additives, for example silver halide solvents, for example sodium thiosulfate, or one of those described in DE-A, for example a hydroxyl cellulose or carboxymethyl cellulose, which is necessary for the development and a thickener which may be required to set a desired increased viscosity No. 2126661 described bissulfonylalkyl compounds, opacifiers for producing opaque layers, for example pigments of TiO z , ZnO, barium sulfate, barium stearate or kaolin, or stabilizers. Alternatively or additionally, some of these components can also be embedded in one or more layers of the color photographic recording material used according to the invention.
  • silver halide solvents for example sodium thiosulfate
  • DE-A for example a hydroxyl cellulose or carboxymethyl cellulose
  • opacifiers for producing opaque layers for example pigments of TiO z , ZnO, barium sulf
  • the image-wise exposed recording material is treated with the described alkaline developer preparation while it is in contact with an image-receiving layer.
  • the image-receiving layer can be arranged on a separate support or on the same support as the light-sensitive layers; it can form an integral part of the light-sensitive material or can be brought into contact with the latter only after exposure for the purpose of development.
  • the image-receiving layer can also be separated from the originally light-sensitive layers after development, for example in order to expose the color transfer image produced for viewing, or else, e.g. if the associated layer support is transparent, remain in permanent contact with them.
  • An integral recording material can be composed in such a way that two different parts are produced separately from one another, namely a light-sensitive part (layer elements 1 to 4) and a cover sheet (layer elements 5 to 7), which are then placed on top of one another on the layer and bound together, if necessary using spacer strips so that a space is formed between the two parts for receiving a precisely measured amount of the developer preparation - in this case a paste.
  • the layer elements 5 and 6, which together form the neutralization system can also be arranged - albeit in the opposite order - between the layer support and the image-receiving layer of the light-sensitive part.
  • Means may be provided to insert the developer paste between the photosensitive member and the cover sheet, e.g. B. in the form of a laterally arranged splitable container, which pours its inside between two adjacent layers of such an integral recording material when subjected to mechanical forces.
  • the development can also be carried out using a low-viscosity liquid developer preparation (developer bath) by simple immersion treatment, in particular if if the color photographic recording material contains only a single layer support which is impermeable to aqueous treatment baths.
  • the image-receiving layer essentially consists of a binder which contains mordants for the fixing of the diffusing dyes released from the non-diffusing color releasers.
  • mordants for the fixing of the diffusing dyes released from the non-diffusing color releasers.
  • Long-chain quaternary ammonium or phosphonium compounds e.g. those as described in US Pat. Nos. 3271147 and 3271148.
  • certain metal salts and their hydroxides which form poorly soluble compounds with the acid dyes, can also be used.
  • polymeric mordants such as those described in DE-A No. 2315304, 2631521 or 2941818.
  • the dye mordants are dispersed in the mordant layer in one of the usual hydrophilic binders, e.g.
  • binders can also act as mordants, e.g. Copolymers or polymer mixtures of vinyl alcohol and N-vinylpyrrolidone, as described, for example, in DE-B No. 1130284; also those which are polymers of nitrogen-containing quaternary bases, e.g. Polymers of N-methyl-2-vinylpyridine, as described, for example, in US Pat. No. 2484430.
  • Further useful binders are, for example, guanylhydrazone derivatives of alkyl vinyl ketone polymers, as described, for example, in US Pat. No. 2882156, or guanylhydrazone derivatives of acylstyrene polymers, such as, for example described in DE-A No. 2009498.
  • other binders eg Add gelatin.
  • the image-receiving layer or a layer adjacent to it can contain heavy metal ions, in particular copper and nickel ions, if diffusible dyes or dye precursors which can be complexed by heavy metal ions are released during development.
  • the metal ions can be present in the image-receiving layer in complex-bound form, for example bound to certain polymers as described, for example, in " Research Disclosure", 18534 (September 1979) or in DE-A No. 3002287.
  • the image-receiving layer remains in layer contact with the photosensitive element even after development is complete, there is usually an alkali-permeable, pigment-containing, light-reflecting binder layer between them, which serves for the optical separation between negative and positive and as an optically appealing background for the transferred color image.
  • an alkali-permeable, pigment-containing, light-reflecting binder layer between them, which serves for the optical separation between negative and positive and as an optically appealing background for the transferred color image.
  • Such a light-reflecting layer can already be pre-formed in a known manner in the light-sensitive color photographic recording material or can only be produced in a likewise known manner during development.
  • the image-receiving layer is arranged between the layer support and the light-sensitive element and is separated from the latter by a pre-formed light-reflecting layer, either the layer support must be transparent so that the color transfer image produced can be viewed through it, or the light-sensitive element together with the light-reflecting layer of the image-receiving layer are removed to expose the latter.
  • the image-receiving layer can also be present as the top layer in an integral color photographic recording material, in which case the exposure is expediently carried out through the transparent layer support.
  • the recording material was exposed through the transparent support behind a slide and developed with the activator solutions 8 to 11 listed in Table 2.
  • the maximum color density Dmax obtained. and sensitivity values E2 are given in Table 2.
  • E2 is the sensitivity, measured at density 1.0 and given in log I ⁇ t units (DIN).
  • Table 4 shows further accelerator mixtures which have the advantages according to the invention, the integral recording material described in Example 1 being used:

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Fats And Perfumes (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Color Printing (AREA)

Claims (4)

1. Procédé pour la formation d'images colorées par le procédé de transfert par diffusion de colorants dans lequel on développe un matériau d'enregistrement photographique en couleurs exposé suivant une image et comportant au moins une couche photosensible d'émulsion d'halogénure d'argent et un composé chromogène non diffusant associé à cette couche en contact plan avec une couche réceptrice d'image et avec utilisation d'une composition révélatrice contenant un accélérateur du développement, caractérisé en ce que:
1. on utilise un matériau d'enregistrement photographique en couleurs contenant, en association avec au moins une couche négative d'émulsion d'halogénure d'argent, une combinaison d'un composé chromogène réductible non diffusant et d'un composé donateur d'électrons (composé DE), et
2. on utilise une composition révélatrice contenant, en tant qu'accélérateur de développement, une combinaison d'au moins deux des composés A, B et C définis ci-dessous,
A) étant un 1,3-diol aliphatique en C3-C10,
B) étant un cyclohexanediméthanol ou un cyclohexènediméthanol, et
C) étant un arylalcanol ou un aroxyalcanol en C7-C12.
2. Matériau d'enregistrement selon la revendication 1, caractérisé en ce que l'on utilise en tant que composé chromogène un composé de formule:
Figure imgb0017
dans laquelle
X représente le reste d'un colorant ou précurseur de colorant diffusable,
R1, R2, R3 représentent l'hydrogène, des halogènes, des groupes alkyle, alcoxy, aryle ou acylamino, ou bien R2 et R3 complètent un noyau condensé,
R4 représente l'hydrogène ou un groupe alkyle, au moins un des restes R1, R2, R3 et R4 contient un reste conférant la résistance à la diffusion.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la composition révélatrice contient du cyclohexane-1,4-diméthanol en combinaison avec du 2,2-diéthyl-1,3-propanediol, du 2-méthyl-2-propyl-1,3-propanediol ou du 2,2,4-triméthyl-1,3-propanediol.
4. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la composition révélatrice contient du phénoxyéthanol en combinaison avec du 2,2-diéthyl-1,3-propanediol, du 2-méthyl-2-propyl-1,3-propanediol ou du 2,2,4-triméthyl-1,3-propanediol.
EP82105149A 1981-06-26 1982-06-12 Procédé de diffusion de colorant par transfert Expired EP0068249B1 (fr)

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DE19813125058 DE3125058A1 (de) 1981-06-26 1981-06-26 Farbdiffusionsuebertragungsverfahren
DE3125058 1981-06-26

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DE3368775D1 (en) * 1982-11-12 1987-02-05 Agfa Gevaert Nv Process for the production of a photographic colour image by image-wise dye diffusion transfer
US4816367A (en) * 1987-02-06 1989-03-28 Seiko Instruments Inc. Multicolor imaging material

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US2983606A (en) * 1958-07-14 1961-05-09 Polaroid Corp Processes and products for forming photographic images in color
US3846129A (en) * 1972-09-25 1974-11-05 Eastman Kodak Co Dye diffusion transfer compositions,elements and processes
JPS5098838A (fr) * 1973-12-27 1975-08-06
US4030920A (en) * 1976-04-12 1977-06-21 Eastman Kodak Company Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement
US4139379A (en) * 1977-03-07 1979-02-13 Eastman Kodak Company Photographic elements containing ballasted electron-accepting nucleophilic displacement compounds
EP0004399B1 (fr) * 1978-03-22 1982-05-12 Agfa-Gevaert N.V. Procédé photographique par diffusion-transfert et matériau photographique utilisable pour la mise en oeuvre de ce procédé
DE3172335D1 (en) * 1980-09-30 1985-10-24 Agfa Gevaert Nv Dye-diffusion transfer process

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EP0068249A1 (fr) 1983-01-05
JPS587143A (ja) 1983-01-14
DE3125058A1 (de) 1983-01-05
DE3261052D1 (en) 1984-11-29
JPH0225495B2 (fr) 1990-06-04
US4440849A (en) 1984-04-03

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