US3690885A - Image receiving layer for the silver salt diffusion process - Google Patents
Image receiving layer for the silver salt diffusion process Download PDFInfo
- Publication number
- US3690885A US3690885A US86943A US3690885DA US3690885A US 3690885 A US3690885 A US 3690885A US 86943 A US86943 A US 86943A US 3690885D A US3690885D A US 3690885DA US 3690885 A US3690885 A US 3690885A
- Authority
- US
- United States
- Prior art keywords
- layer
- image
- silver
- silver halide
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009792 diffusion process Methods 0.000 title abstract description 9
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 title abstract description 9
- 229910052709 silver Inorganic materials 0.000 abstract description 23
- 239000004332 silver Substances 0.000 abstract description 23
- 150000001241 acetals Chemical class 0.000 abstract description 21
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 abstract description 17
- -1 SILVER HALIDE Chemical class 0.000 abstract description 16
- 239000000203 mixture Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 229920002301 cellulose acetate Polymers 0.000 abstract description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000839 emulsion Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 46
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 19
- 239000000463 material Substances 0.000 description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 239000011230 binding agent Substances 0.000 description 12
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 10
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 10
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 238000011161 development Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 150000003935 benzaldehydes Chemical class 0.000 description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011253 protective coating Substances 0.000 description 4
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 229910001864 baryta Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- BSDBXXARTLPPLR-UHFFFAOYSA-N 3-formylbenzene-1,2-disulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC(C=O)=C1S(O)(=O)=O BSDBXXARTLPPLR-UHFFFAOYSA-N 0.000 description 1
- ZFIQGRISGKSVAG-UHFFFAOYSA-N 4-methylaminophenol Chemical compound CNC1=CC=C(O)C=C1 ZFIQGRISGKSVAG-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052946 acanthite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229960001330 hydroxycarbamide Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 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
- G03C8/24—Photosensitive materials characterised by the image-receiving section
- G03C8/26—Image-receiving layers
- G03C8/28—Image-receiving layers containing development nuclei or compounds forming such nuclei
Definitions
- the invention relates to image receiving layers which contain binder mixtures which are insoluble in water but which are suflicient capable of swelling in water and permeable to moisture, in particular for the production of line and continuous tone images by the silver salt diffusion process.
- the usual water-soluble binding agents for image-receiving layers for the silver salt diffusion process such as gelatin, polyvinyl alcohol, carboxymethyl cellulose, alginic acid derivatives, etc. take up more liquid than is required for photographic processing. This gives rise to disadvantages such as increased take-up of developer liquid and hence greater risk of yellowing in the final images, reduced stability of the processed layers due to the greater take-up of moisture during storage at high humidity and increase in the length of time required for transfer of the silver halide from the light-sensitive layers to the imagereceiving layer due to the longer diffusion distance resulting from the increased swelling. Moreover, greater length of time is required for drying the swelled layers.
- image receiving layers for processes in which the positive continuous tone images are instantly obtained in the camera by silver salt diffusion generally contain a substantial proportion of colloidal silicic acid. They must be coated with a protective layer after processing in order to provide mechanical protection for the silver image which is deposited on the paper support and which is very easily scratched off. In addition, this protective coating contains other compounds for stabilizing the image and neutralizing the alkaline developer solution which remains in the layer.
- Image receiving layers which no longer require this protective coating are also known.
- image receiving layers consist e.g. of a layer of a synthetic binder of the polyvinyl acetal or cellulose acetate type which contains nuclei and which has been saponified with acid or alkali before development in order to be permeable to alkali and hence capable of development.
- the finely divided noble metals used as development nuclei for these layers must be applied to the powdered binder by evaporation at elevated temperature or by glow discharge in a high vacuum.
- These image receiving layers are only of limited utility because the application of the nuclei by evaporation and the carefully controlled hydrolysis of the binding agent involve considerable difficulties.
- an image-receiving material for the silver salt diffusion process comprising a supported layer containing development nuclei incorporated in a binding agent which consists of a mixture of a cellulose acetate having an acetic acid content of between 30 and 50% by weight and a mixed acetal of polyvinyl alcohol with a benzaldehyde and a sulfonated benzaldehyde.
- a binding agent which consists of a mixture of a cellulose acetate having an acetic acid content of between 30 and 50% by weight and a mixed acetal of polyvinyl alcohol with a benzaldehyde and a sulfonated benzaldehyde.
- Preferred are mixed acetals which contain up to 40% by weight of free vinyl alcohol units.
- the molar ratio of benzaldehyde to sulfonated benzaldehyde in the mixed acetal may vary between 0.5 and about 3; products which contain the two aldehyde components in a molar ratio of about 1:1 are preferred.
- mixed acetals of polyvinyl alcohol which contain 30 to 40% by weight of vinyl alcohol units being acetalized with benzaldehyde, 30 to 40% by weight of vinyl alcohol units being acetalized with sulfonated benzaldehyde and 20 to 40% by weight of free vinyl alcohol units.
- the mixed acetals should still be readily soluble in organic solvents but should only swell slightly in cold water.
- the sulfonated benzaldehyde may contain one or more, preferably one or two sulfo groups.
- the benzene rings of the two aldehydes may contain further substituents, e.g. alkyl or alkoxy groups containing preferably one or two carbon atoms, or halogen such as chlorine or bromine, carboxyl and the like.
- the usual development nuclei may be used for the image receiving material according to the invention, e.g. heavy metal sulfides or selenides such as silver sulfide, nickel sulfide, zinc sulfide or mixtures thereof, or heavy metals in a finely divided colloidal form, e.g. silver or palladium or mixtures thereof.
- concentration of the nuclei in the image receiving layer can be varied with wide limits. Amounts of 3 to 15 mg. per square meter have generally been found suflicient. The optimum amount for each particular material can be determined by a few simple tests customarily employed in the art.
- the image receiving material according to the invention is suitable for the processing of the usual light-sensitive materials used for the silver salt difiustion process. These are generally materials which contain one or more silver halide gelatin emulsion layers. Materials comprising silver halide emulsion layers in which the silver halide consists substantially of silver chloride are especially suitable. Suitable light-sensitive layers have been described e.g. in German Pat. No. 912,294 and in US. Pat. No. 2,603,565.
- the preparation of suitable mixed acetals has been described in German Pats. Nos. 1,080,397 and 1,201,680.
- the polyvinyl alcohols used for this purpose may have a molecular weight of between 10,000 and 100,000.
- Polyvinyl alcohols having a molecular weight of between 20,000 and 50,000 are especially suitable.
- the binding agent of image-receiving layers preferably consists substantially only of the mixture of cellulose acetate and mixed acetal.
- the image receiving materials according to the invention may be processed in the usual manner together with the light-sensitive materials, e.g. using liquid proccssing baths, or they may be used for the production of continuous-tone images directly in the camera, using processing pastes.
- the materials according to the invention are especially suitable for the last-mentioned purpose.
- Excellent smooth layers of high mechanical strength can be cast from the binder mixture used according to the invention.
- Sufficient scratch resistance is ensured even at high humidity.
- the use of the binding agents does not require any additional measures such as saponification or the use of a special protective coatings after processing.
- the scratch resistance is excellent and the permeability to water, although generally applied from an organic aqueous medium, is quite sufficient.
- EXAMPLE 1 First layer.A first layer of mixed acetal having the following composition is applied to a baryta-coated paper support which has a weight of about 140 g./m. and which has been treated with a layer of cellulose triacetate:
- the mixed acetal consists of a mixture of 32 to 35% of benzaldehyde disulfonate vinyl alcohol units, 33 to 38% of benzaldehyde vinyl alcohol units and 27 to 33% of free vinyl alcohol units.
- the first layer serves to increase the absorption capacity of the nucleated layer applied on it and hence to improve the silver transfer.
- the concentrate of nuclei has the following composition:
- the layer which contains the nuclei is subsequently coated with a thin protective layer of carboxymethyl cellulose.
- This protective coating consists of a mixture of:
- the three layers are applied to the paper support by the dip-coating method at the rate of 3 to 3.5 m./min. and dried in warm static air under mild conditions of drying, the guide rollers over which the web of paper is placed being heated to about 70 C.
- the reaction time is a few seconds. After separation of the two images, a positive, scratch-resistant silver image of the original is obtained which has high contrast and good reproduction of the continuous tones.
- EXAMPLE 2 A paper support as described in Example 1 is coated with a nucleated layer from a casting solution of the following composition:
- the mixed acetal contains 38% by weight of vinyl alcohol units being acetalised with benzaldehyde, 34% by weight of vinyl alcohol units being acetalised with disulfo-benzaldehyde and 28% by weight of free vinyl alcohol units.
- an image receiving material which is adapted to receive the transfer of silver halide from silver halide light sensitive material
- the combination of a support, and a layer on said support for receiving silver halide from unexposed portions of a silver halide light sensitive layer said layer comprising a binding agent consisting of a mixture of a cellulose acetate having an acetic acid content of between 30 and 50% by weight and a mixed acetal of polyvinyl alcohol with benzaldehyde and sulfonated benzaldehyde in an amount of 40 to 60% by Weight, based on the cellulose acetate and finely divided metals or metal compounds which provided nuclei for development of the silver halide.
- binding agents contain 40 to 60% by weight of the mixed acetal of polyvinyl alcohol, based on the cellulose acetate.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691955899 DE1955899A1 (de) | 1969-11-06 | 1969-11-06 | Bildempfangsschicht fuer das Silbersalzdiffusionsverfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3690885A true US3690885A (en) | 1972-09-12 |
Family
ID=5750334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US86943A Expired - Lifetime US3690885A (en) | 1969-11-06 | 1970-11-04 | Image receiving layer for the silver salt diffusion process |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3690885A (enrdf_load_stackoverflow) |
| JP (1) | JPS4911942B1 (enrdf_load_stackoverflow) |
| BE (1) | BE758178A (enrdf_load_stackoverflow) |
| CA (1) | CA958270A (enrdf_load_stackoverflow) |
| CH (1) | CH546419A (enrdf_load_stackoverflow) |
| DE (1) | DE1955899A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2067021A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1297174A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969541A (en) * | 1971-03-26 | 1976-07-13 | Fuji Photo Film Co., Ltd. | Diffusion transfer image receptive materials |
| US3976817A (en) * | 1971-08-25 | 1976-08-24 | Fuji Photo Film Co., Ltd. | Method of preparing diffusion transfer image-receiving materials |
| US4361635A (en) * | 1981-06-19 | 1982-11-30 | Minnesota Mining And Manufacturing Company | Photolithographic element containing a silver-receptive polyaldehyde-containing receiving layer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4186013A (en) * | 1978-04-04 | 1980-01-29 | Polaroid Corporation | Silver diffusion transfer receiving layer comprising HEC and gelatin |
-
0
- BE BE758178D patent/BE758178A/nl unknown
-
1969
- 1969-11-06 DE DE19691955899 patent/DE1955899A1/de active Pending
-
1970
- 1970-10-20 CA CA095,996A patent/CA958270A/en not_active Expired
- 1970-11-02 GB GB1297174D patent/GB1297174A/en not_active Expired
- 1970-11-04 US US86943A patent/US3690885A/en not_active Expired - Lifetime
- 1970-11-06 JP JP45098842A patent/JPS4911942B1/ja active Pending
- 1970-11-06 CH CH1647670A patent/CH546419A/xx not_active IP Right Cessation
- 1970-11-06 FR FR7040081A patent/FR2067021A1/fr not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969541A (en) * | 1971-03-26 | 1976-07-13 | Fuji Photo Film Co., Ltd. | Diffusion transfer image receptive materials |
| US3976817A (en) * | 1971-08-25 | 1976-08-24 | Fuji Photo Film Co., Ltd. | Method of preparing diffusion transfer image-receiving materials |
| US4361635A (en) * | 1981-06-19 | 1982-11-30 | Minnesota Mining And Manufacturing Company | Photolithographic element containing a silver-receptive polyaldehyde-containing receiving layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4911942B1 (enrdf_load_stackoverflow) | 1974-03-20 |
| CA958270A (en) | 1974-11-26 |
| FR2067021A1 (enrdf_load_stackoverflow) | 1971-08-13 |
| DE1955899A1 (de) | 1971-05-13 |
| CH546419A (de) | 1974-02-28 |
| GB1297174A (enrdf_load_stackoverflow) | 1972-11-22 |
| BE758178A (nl) | 1971-04-29 |
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