WO1980002331A1 - Dye developer processes - Google Patents
Dye developer processes Download PDFInfo
- Publication number
- WO1980002331A1 WO1980002331A1 PCT/US1980/000457 US8000457W WO8002331A1 WO 1980002331 A1 WO1980002331 A1 WO 1980002331A1 US 8000457 W US8000457 W US 8000457W WO 8002331 A1 WO8002331 A1 WO 8002331A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diffusion transfer
- diazole
- silver halide
- film unit
- halide emulsion
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 25
- -1 aromatic unsaturated diazole Chemical class 0.000 claims abstract description 42
- 238000012546 transfer Methods 0.000 claims abstract description 41
- 238000009792 diffusion process Methods 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 27
- NALBLJLOBICXRH-UHFFFAOYSA-N dinitrogen monohydride Chemical group N=[N] NALBLJLOBICXRH-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000000975 dye Substances 0.000 claims description 60
- 239000000839 emulsion Substances 0.000 claims description 37
- 239000004332 silver Substances 0.000 claims description 34
- 229910052709 silver Inorganic materials 0.000 claims description 34
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 claims description 28
- CAWHJQAVHZEVTJ-UHFFFAOYSA-N methylpyrazine Chemical group CC1=CN=CC=N1 CAWHJQAVHZEVTJ-UHFFFAOYSA-N 0.000 claims description 16
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical group CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 15
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims description 12
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical group CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 claims description 8
- 238000011161 development Methods 0.000 claims description 8
- MXDRPNGTQDRKQM-UHFFFAOYSA-N 3-methylpyridazine Chemical group CC1=CC=CN=N1 MXDRPNGTQDRKQM-UHFFFAOYSA-N 0.000 claims description 7
- LVILGAOSPDLNRM-UHFFFAOYSA-N 4-methylpyrimidine Chemical group CC1=CC=NC=N1 LVILGAOSPDLNRM-UHFFFAOYSA-N 0.000 claims description 7
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 claims description 7
- 239000001043 yellow dye Substances 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 125000000623 heterocyclic group Chemical group 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 39
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 24
- 108010010803 Gelatin Proteins 0.000 description 14
- 229920000159 gelatin Polymers 0.000 description 14
- 239000008273 gelatin Substances 0.000 description 14
- 235000019322 gelatine Nutrition 0.000 description 14
- 235000011852 gelatine desserts Nutrition 0.000 description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- DWYHDSLIWMUSOO-UHFFFAOYSA-N 2-phenyl-1h-benzimidazole Chemical compound C1=CC=CC=C1C1=NC2=CC=CC=C2N1 DWYHDSLIWMUSOO-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N 1,4-Benzenediol Natural products OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- KKKDZZRICRFGSD-UHFFFAOYSA-N 1-benzylimidazole Chemical compound C1=CN=CN1CC1=CC=CC=C1 KKKDZZRICRFGSD-UHFFFAOYSA-N 0.000 description 2
- AYHBRSKXFVQPPX-UHFFFAOYSA-M 2-methyl-1-(2-phenylethyl)pyridin-1-ium;bromide Chemical compound [Br-].CC1=CC=CC=[N+]1CCC1=CC=CC=C1 AYHBRSKXFVQPPX-UHFFFAOYSA-M 0.000 description 2
- SDXAWLJRERMRKF-UHFFFAOYSA-N 3,5-dimethyl-1h-pyrazole Chemical compound CC=1C=C(C)NN=1 SDXAWLJRERMRKF-UHFFFAOYSA-N 0.000 description 2
- SHVCSCWHWMSGTE-UHFFFAOYSA-N 6-methyluracil Chemical compound CC1=CC(=O)NC(=O)N1 SHVCSCWHWMSGTE-UHFFFAOYSA-N 0.000 description 2
- LHCPRYRLDOSKHK-UHFFFAOYSA-N 7-deaza-8-aza-adenine Chemical compound NC1=NC=NC2=C1C=NN2 LHCPRYRLDOSKHK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 2
- ZAZYLZVHLXKDPI-UHFFFAOYSA-N n-dodecylpurin-1-amine Chemical compound CCCCCCCCCCCCNN1C=NC2=NC=NC2=C1 ZAZYLZVHLXKDPI-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OGYGFUAIIOPWQD-UHFFFAOYSA-N 1,3-thiazolidine Chemical compound C1CSCN1 OGYGFUAIIOPWQD-UHFFFAOYSA-N 0.000 description 1
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical compound CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 description 1
- JONTXEXBTWSUKE-UHFFFAOYSA-N 2-(2-aminoethylsulfanyl)ethanamine Chemical compound NCCSCCN JONTXEXBTWSUKE-UHFFFAOYSA-N 0.000 description 1
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 1
- KFDVPJUYSDEJTH-UHFFFAOYSA-N 4-ethenylpyridine Chemical compound C=CC1=CC=NC=C1 KFDVPJUYSDEJTH-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- PCSMJKASWLYICJ-UHFFFAOYSA-N Succinic aldehyde Chemical compound O=CCCC=O PCSMJKASWLYICJ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- XFOZBWSTIQRFQW-UHFFFAOYSA-M benzyl-dimethyl-prop-2-enylazanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC1=CC=CC=C1 XFOZBWSTIQRFQW-UHFFFAOYSA-M 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 125000000687 hydroquinonyl group Chemical group C1(O)=C(C=C(O)C=C1)* 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- FJYACARVIOXIAK-UHFFFAOYSA-N n'-hydroxyprop-2-enimidamide Chemical compound C=CC(N)=NO FJYACARVIOXIAK-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XCZKKZXWDBOGPA-UHFFFAOYSA-N phenyl-hydroquinone Natural products OC1=CC=C(O)C(C=2C=CC=CC=2)=C1 XCZKKZXWDBOGPA-UHFFFAOYSA-N 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Classifications
-
- 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
- This invention relates to photography and, more particularly, to diffusion transfer photography.
- a photosensitive element containing a dye developer and a silver halide emulsion is photo- exposed and a processing composition applied thereto, for example, by. immersion, coating, spraying, flowing, etc., in the dark.
- the exposed photosensitive element is superposed prior to, during, or after the processing composition iu applied, on a second sheet-like element which may be utilized as an image-receiving element.
- the processing composition is applied to the exposed, photosensitive element in a sub ⁇ stantially uniform layer as the photosensitive element is brought into superposed relationship with an image-receiv ⁇ ing layer carried by said second sheet-like element.
- the processing composition permeates the emulsion to initiate development of the latent image contained therein.
- the dye developer is immobilized or precipitated in exposed areas as a consequence of the development of the latent image. This immobilization is apparently, at least in part, due to a change in the solubility characteristics of the dye developer upon oxidation and especially as regards its solubility in alkaline solutions. It may also be due in part to a tanning effect on the emulsion by oxidized developing agent, and in part to a localized
- the image-receiving layer receives a depth- wise diffusion, from the developed emulsion, of unoxidized dye developer without appreciably disturbing the image ⁇ wise distribution thereof to provide a reversed or posi-
- the image-receiv ⁇ ing element may contain agents adapted to mordant or otherwise fix the diffused, unoxidized dye developer.
- a substance e.g., a white pigment, effective" to mask the developed silver halide emulsion or emulsions, is applied between the image-receiving layer and said silver halide emulsion or emulsions.
- 35 No. 2,983,606 are compounds which contain, in the same ' ' molecule, both the chromophoric system of a dye and also
- a silver halide developing function is meant a grouping adapted to develop exposed silver halide.
- a preferred silver halide development function is a hydroquinonyl group.
- the development function includes a benzenoid developing function, that is, an aromatic developing group which forms quinonoid or quinone substances when oxidized.
- Multicolor images may be obtained using dye developers in diffusion transfer processes by several techniques.
- One such technique contemplates obtaining multicolor transfer images utilizing dye developers by employment of an integral multilayer photosensitive element, such as is disclosed in the aforementioned U. S. Patent No. 2,983,606 and in U. S. Patent No. 3,345,163 -issued October 3, 1967 to Edwin H. Land and Howard G. Rogers, wherein at least two selectively sensitized photosensitive strata, superposed on a single support, are processed, simultaneously and without separation, with a single common image-receiving layer.
- a suitable arrangement of this type comprises a support carrying a red-sensitive silver halide emulsion stratum, a green- sensitive silver halide emulsion stratum and a blue- sensitive silver halide emulsion stratum, said emulsions having associated therewith, respectively, for example, a cyan dye developer, a magenta dye developer and a yellow dye developer.
- the dye developer may be utilized in the silver halide emulsion stratum, for example in the form of particles, or it may be disposed in a stratum behind the appropriate silver halide emulsion strata.
- Each set of silver halide emulsion and associated dye developer strata may be separated from other sets by suitable interlayers, for example, by a layer or stratum of gelatin or polyvinyl alcohol.
- suitable interlayers for example, by a layer or stratum of gelatin or polyvinyl alcohol.
- a yellow dye developer of the appropriate spectral characteristics and present in a state capable of functioning as a yellow filter may be so employed and a 5 separate yellow filter omitted.
- an opacifying agent is preferably titanium dioxide, and it also performs an opacifying function, i.e., it is effective to mask the developed silver halide emulsions so that the transfer image may be viewed without interference therefrom, and
- IP light-absorbing material or reagent preferably a pH-- sensitive phthalein dye
- IP light-absorbing material or reagent preferably a pH-- sensitive phthalein dye
- the light-absorbing material is so positioned and/or constituted after process ⁇ ing as not to interfere with viewing the desired image shortly after said image has been formed.
- the light-absorbing material also sometimes referred to as an optical filter agent, is initially contained in the processing composition together with a light-reflecting material, e.g., titanium dioxide.
- concentration of the light-absorbing dye is selected to provide the light transmission opacity required to perform the particular process under the selected light conditions.
- the light- absorbing dye is highly colored at the pH of the process ⁇ ing composition, e.g., 13-14, but is substantially non- absorbing of visible light at a lower pH, e.g., less than 10-12.
- This pH reduction may be effected by an acid- reacting reagent appropriately positioned in the film unit, e.g., in a layer between the transparent support and the image-receiving layer.
- the dye developers are preferably selected for their ability to provide- colors that are useful in carry ⁇ ing out subtractive color photography, that is, the previously mentioned cyan, magenta and yellow.
- the dye . developers employed may be incorporated in the respective silver halide emulsion or, in the preferred embodiment, in a separate layer behind the respective silver halide emulsion, and such a layer of dye developer may be applied by use of a coating solution containing the respective dye developer distributed, in a concentration calculated
- heterocyclic diazoles may be said to be "aromatic", i.e., the 5-membered heterocyclic diazoles contain two double bonds and the 6-membered heterocyclic diazoles contain three double bonds.
- the nitrogen atoms may be adjacent or separated by one or two carbon atoms.
- Substituents on the ring carbons or nitrogens may include 1 to 2 carbon atoms. Examples of 5- and 6-membered unsaturated heterocyclic diazoles found useful in accordance with this invention include:
- OMPI - was prepared by coating a gelatin-subcoated 4 mil opaque polyethylene terephthalate film base with the following layers:
- OMPI 8 a blue-sensitive gelatino silver iodobromide emulsion layer including 4 '-methylphenyl "hydroquinone coated at a coverage of about 119 mg/ft 2 of silver, about
- a transparent 4 mil polyethylene terephthalate film base was coated, in succession, with the following layers to form an image-receiving component:
- timing layer containing about a 45:0.7 ratio of a 60-30-4-6 copolymer of butylacrylate, diacetone acrylamide, styrene and' ethacrylic acid and polyvinyl alcohol at a coverage of about 45 mg/ft 2; and , 3. an image-receiving layer containing a 2:1:1 mixture of polyvinyl alcohol, poly-4-vinyl pyridine and a graft copolymer of 4'-vinyl pyridine and vinylbenzyl trimethyl ammonium chloride on hydroxyethyl cellulose
- the photosensitive component was photoexposed and then taped to one end of the image-receiving component with a rupturable container retaining an aqueous alkaline process ⁇ ing solution fixedly mounted on the leading edge of each of the components, by pressure-sensitive tapes to make a film unit, so that, upon application of compressive pressure to the container to rupture the container's marginal seal, its contents would be distributed between the image-receiving layer and the gelatin overcoat of the photosensitive component.
- the aqueous alkaline processing composition comprised: -13-
- Colloidal silica (30% Si0 2 dispersion) 4.15 g.
- a layer approximately 0.0030" thick of the processing composition was distributed by passing the film unit between a pair of pressure-applying rolls and into a lighted area.
- the resulting laminate was maintained intact to provide a multicolor integral negative-positive reflection print.
- the maximum and minimum reflection densities of the neutral column of the control and test images were measured at intervals of time after the processing composition was applied, and the following results were obtained.
- Colloidal silica (30% SiO dispersion) 37 N-2-hydroxyethyl-N,N' ,N'-tris- - carboxymethyl-ethylene diamine 30 g.
- the relative rates of transfer of the image dyes was also measured using the same components and measured the density as a function of time using an automatic recording densitometer.
- the following table indicates the difference in density at the given times between the control and the test compound at 1 and 2% weight per cent, decreased density at a given time being indicated by a minus sign.
- the neutralizing and timing layers were positioned between the image-receiving layer and its transparent support.
- the diazole is dissolved in the processing composition.
- the concentra ⁇ tion of the diazole most appropriate for a given til fl i unit may be determined by routine experimentation. In general, if the diazole is in the processing composition, the concentration may be in the range of about 0.5 to 3% by weight; higher concentrationsmay be used but have not been found to offer any advantages. The preferred concentration is about 0.5 to 1%. It will be understood that the diazoles also may be used in dye developer color transfer processes wherein the image-receiving element is separated from the developed photosensitive element.
- the diazole e.g., 1- methyl imidazole
- the diazole may exhibit a tendency to photolyze and stain the image.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8080900936T DE3068777D1 (en) | 1979-04-24 | 1980-04-24 | Diffusion transfer film unit and color process |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3295479A | 1979-04-24 | 1979-04-24 | |
| US32954 | 1979-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1980002331A1 true WO1980002331A1 (en) | 1980-10-30 |
Family
ID=21867773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1980/000457 WO1980002331A1 (en) | 1979-04-24 | 1980-04-24 | Dye developer processes |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0027460B1 (enrdf_load_stackoverflow) |
| JP (1) | JPS6227378B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1137346A (enrdf_load_stackoverflow) |
| DE (1) | DE3068777D1 (enrdf_load_stackoverflow) |
| WO (1) | WO1980002331A1 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0129033A3 (en) * | 1983-05-09 | 1985-12-27 | Polaroid Corporation | Photographic products and processes and novel compounds |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353956A (en) * | 1963-02-18 | 1967-11-21 | Polaroid Corp | Photographic diffusion transfer processes utilizing an imidazole and an image-receiving element containing a polymeric acid layer |
| US3377166A (en) * | 1966-04-19 | 1968-04-09 | Eastman Kodak Co | Photographic image transfer process utilizing imidazole |
| US3649265A (en) * | 1970-05-06 | 1972-03-14 | Eastman Kodak Co | Diffusion transfer system comprising dye developers, a pyrazolone and an onium compound |
| US3785814A (en) * | 1971-12-23 | 1974-01-15 | Polaroid Corp | Diffusion transfer color processes and products and compositions useful therein |
| US3899331A (en) * | 1973-11-14 | 1975-08-12 | Polaroid Corp | Multicolor dye developer diffusion transfer processes with pyrazolo-{8 3,4d{9 {0 pyrimidines |
| US4049450A (en) * | 1976-03-30 | 1977-09-20 | Polaroid Corporation | 4-Hydroxypyrazole developing agents |
| US4095982A (en) * | 1975-10-24 | 1978-06-20 | Fuji Photo Film Co., Ltd. | Method of developing a silver halide photographic light-sensitive material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3808003A (en) * | 1969-01-24 | 1974-04-30 | Fuji Photo Film Co Ltd | Photographic material development method |
| JPS5089034A (enrdf_load_stackoverflow) * | 1973-12-07 | 1975-07-17 |
-
1980
- 1980-04-24 WO PCT/US1980/000457 patent/WO1980002331A1/en active IP Right Grant
- 1980-04-24 JP JP55501106A patent/JPS6227378B2/ja not_active Expired
- 1980-04-24 CA CA000350520A patent/CA1137346A/en not_active Expired
- 1980-04-24 DE DE8080900936T patent/DE3068777D1/de not_active Expired
- 1980-11-04 EP EP80900936A patent/EP0027460B1/en not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353956A (en) * | 1963-02-18 | 1967-11-21 | Polaroid Corp | Photographic diffusion transfer processes utilizing an imidazole and an image-receiving element containing a polymeric acid layer |
| US3377166A (en) * | 1966-04-19 | 1968-04-09 | Eastman Kodak Co | Photographic image transfer process utilizing imidazole |
| US3649265A (en) * | 1970-05-06 | 1972-03-14 | Eastman Kodak Co | Diffusion transfer system comprising dye developers, a pyrazolone and an onium compound |
| US3785814A (en) * | 1971-12-23 | 1974-01-15 | Polaroid Corp | Diffusion transfer color processes and products and compositions useful therein |
| US3899331A (en) * | 1973-11-14 | 1975-08-12 | Polaroid Corp | Multicolor dye developer diffusion transfer processes with pyrazolo-{8 3,4d{9 {0 pyrimidines |
| US4095982A (en) * | 1975-10-24 | 1978-06-20 | Fuji Photo Film Co., Ltd. | Method of developing a silver halide photographic light-sensitive material |
| US4049450A (en) * | 1976-03-30 | 1977-09-20 | Polaroid Corporation | 4-Hydroxypyrazole developing agents |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0027460A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0129033A3 (en) * | 1983-05-09 | 1985-12-27 | Polaroid Corporation | Photographic products and processes and novel compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6227378B2 (enrdf_load_stackoverflow) | 1987-06-15 |
| CA1137346A (en) | 1982-12-14 |
| EP0027460B1 (en) | 1984-08-01 |
| EP0027460A4 (en) | 1981-08-27 |
| EP0027460A1 (en) | 1981-04-29 |
| DE3068777D1 (en) | 1984-09-06 |
| JPS56500430A (enrdf_load_stackoverflow) | 1981-04-02 |
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