US3802888A - Light-stable sheet material for recording light-images - Google Patents
Light-stable sheet material for recording light-images Download PDFInfo
- Publication number
- US3802888A US3802888A US00191803A US19180371A US3802888A US 3802888 A US3802888 A US 3802888A US 00191803 A US00191803 A US 00191803A US 19180371 A US19180371 A US 19180371A US 3802888 A US3802888 A US 3802888A
- Authority
- US
- United States
- Prior art keywords
- light
- sheet material
- exposed
- silver
- image
- 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
- 239000000463 material Substances 0.000 title claims abstract description 19
- 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 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 12
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 7
- IJAPPYDYQCXOEF-UHFFFAOYSA-N phthalazin-1(2H)-one Chemical compound C1=CC=C2C(=O)NN=CC2=C1 IJAPPYDYQCXOEF-UHFFFAOYSA-N 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 4
- 239000011354 acetal resin Substances 0.000 claims description 4
- 229920006324 polyoxymethylene Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 13
- -1 silver halide Chemical class 0.000 description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 13
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 11
- 239000004332 silver Substances 0.000 description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 6
- NGYIMTKLQULBOO-UHFFFAOYSA-L mercury dibromide Chemical compound Br[Hg]Br NGYIMTKLQULBOO-UHFFFAOYSA-L 0.000 description 6
- 239000000344 soap Substances 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 150000004820 halides Chemical class 0.000 description 5
- AQRYNYUOKMNDDV-UHFFFAOYSA-M silver behenate Chemical compound [Ag+].CCCCCCCCCCCCCCCCCCCCCC([O-])=O AQRYNYUOKMNDDV-UHFFFAOYSA-M 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 4
- 235000021357 Behenic acid Nutrition 0.000 description 3
- 229940116226 behenic acid Drugs 0.000 description 3
- 229910001622 calcium bromide Inorganic materials 0.000 description 3
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010944 pre-mature reactiony Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000002165 photosensitisation Effects 0.000 description 2
- 230000036211 photosensitivity Effects 0.000 description 2
- 239000003504 photosensitizing agent Substances 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 230000001235 sensitizing effect Effects 0.000 description 2
- 229910001961 silver nitrate Inorganic materials 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- LXWZXEJDKYWBOW-UHFFFAOYSA-N 2,4-ditert-butyl-6-[(3,5-ditert-butyl-2-hydroxyphenyl)methyl]phenol Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)C)C(C)(C)C)O)=C1O LXWZXEJDKYWBOW-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940006460 bromide ion Drugs 0.000 description 1
- 150000001649 bromium compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- IEXIPYCHASVPFD-UHFFFAOYSA-L disodium;7-hydroxynaphthalene-1,3-disulfonate Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=CC(O)=CC=C21 IEXIPYCHASVPFD-UHFFFAOYSA-L 0.000 description 1
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002730 mercury Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 description 1
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000009423 ventilation Methods 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
- G03C1/00—Photosensitive materials
- G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
- G03C1/498—Photothermographic systems, e.g. dry silver
Definitions
- This invention relates to the recording of lightimages, with particular reference to novel sheet materials for use therein.
- an initially substantially light-insensitive or light-stable sheet material which is rendered highly light-sensitive upon mere heating and which thereafter when first exposed to a light-image will develop a visible image under further restricted heating.
- the sheet material may initially be manufactured, packed, and manipulated while exposed to light, and may thereafter, on demand, be quickly and easily made light-sensitive by simple heating. Sensitization may be accomplished by heating the entire sheet; alternatively, small segments of the lightstable sheet may independently be sensitized, exposed and developed.
- the product is therefore particularly useful in the form of microfiche cards adapted for the cumulative recording of intelligence.
- the present invention may and frequently does employ similar components and similar proportions but uses critically different procedures resulting in latent rather than immediate light-sensitivity.
- the procedures employed serve to maintain the silver salt and the source of halide ion in interreactive proximity so as substantially to prevent any initial photosensitivity but so that, upon subsequent appropriate manipulation primarily involving the application of heat, interreaction occurs with formation of photosensitive silver halide in full catalytic proximity with the remaining organic silver salt.
- the organic silver salt and the source of halide ion are laid down'in separate layers with an intervening separate thin layer of a'suitable film-forming thermoplastic binder.
- the binder is incorporated with the silver salt and is of a specific type and in sufficient quantity to protect the salt from reaction with the halide until such time as the stratum is heated.
- the polyvinyl acetal resins such as polyvinyl butyral and polyvinyl formal, are found to be particularly effective. Yet even these preferred materials must be employed with suitable precautions in order to avoid premature reaction between silver salt and halide ion. Thus it is necessary that the silver salt be protected with the binder prior to introduction of the halide.
- Separation and avoidance of premature reaction of silver salt and halide may be achieve by coating in two layers, the first being dried prior to application of the second, the volatile vehicle of the second being preferably a nonsolvent for the dried first layer or at least being removed promptly so as to avoid any substantial contact produce a coated sheet showing no evidence of photosensitivity; whereas the same composition when first permitted to stand for as little as two to five hours prior to coating, or when inhibited from prompt evaporation of solvent after coating, is found to yield an obviously light-sensitive sheet.
- Plasticizing of the polyvinyl acetal binder likewise has a tendency to permit migration and premature reaction of silver soap and halide; thus silver behenate half soap, a mixture of equimolar amounts of silver behenate and behenic acid, has been found ineffective in 7 sheets where prolonged stability is required, apparently due to the plasticizing effect of the free behenic acid.
- mercuric halide may be used as the sole source of halide ion; but the necessary amount of halide ion is preferably here obtained in whole or in part from some other source.
- Chlorides, bromides and iodides of calcium, nickel or cobalt are illustrative of other sources of halide ion which may be used.
- the halide ions of these several compounds may be titrated with alcoholic silver nitrate solution and are found to be readily reactive with the organic silver soap.
- the invention makes possible a microfiche card or transparency which may be handled under room light or used in appropriate viewing or pro- 40 jection apparatus without damage.
- graphic intelligence is to be imparted to an initial or added small area of the card, the area is quickly and conveniently sensitized by brief heating, whereupon the desired image is imparted by exposure to a light-image followed by heat development, the remaining unheated areas of the card remaining non-light-sensitive.
- EXAMPLE 1 Silver behenate, prepared by precipitation with silver nitrate from an equimolar proportion of the sodium salt of commercial behenic acid, is well dispersed in a mixture of toluene and methylethyl ketone by multiple passes through a homogenizer to form a thick slurry containing 20 weight percent of the silver soap.
- a coating composition containing grams of methyl isobutyl ketone, and 20 ml. of a solution of 0.5 gram spectral sensitizing dye (RF-341) in 1,000 ml. of methanol, is coated on heat-resistant thin transparent polyethylene glycol terephthalate polyester film using a coating orifice of four mils. The coating is dried.
- RF-341 0.5 gram spectral sensitizing dye
- a second coating of a solution of 15 parts by weight of Vinylite VYLF ketone-soluble vinyl chloride-vinyl acetate copolymer in 100 parts of acetone, is applied at an orifice of 2 mils and allowed to dry.
- a third coating also at an orifice of 2 mils, is then applied and permitted to dry at room temperature; it contains, in parts by weight:
- Nonox WSO is a hindered phenol identified as l, l bis(2-hydroxy-3,S-dimethylphenyD-B,5,5- trimethylhexane.
- Spectral sensitizers include merocyanine sensitizing dyes, such for example as 3-allyl-5-(3-ethyi-(2- naphthoxazoylidene)ethylidene)-l-pheny1-2- thiohydantoin.
- the coated film is held for several seconds in contact with a platen maintained at 250 F., with no visible change. It is then exposed for 15 seconds to a light-image from a projection lamp, and reheated. A visible image develops within about ten seconds.
- the sheet When heated at substantially higher temperatures, the sheet will darken uniformly due to a relatively slow oxidation-reduction reaction between the silver soap intensity of about 200 foot-candles, and heated by contact with a 250 F. platen for several seconds. Samples which remain unchanged in appearance after such treatment are next exposed to a light-image at the same intensity for 5 seconds and again heated at 250 F. for a time just sufficient to develop maximum darkening at image areas while avoiding as far as possible any significant darkening at the unexposed background areas. Further samples of the doubly coated film segments prior to initial heating are exposed to normal room light for two hours before being heated, exposed to a light-image, and heat-developed; and the test is repeated with a third set of samples, with preliminary exposure continued for 16 hours. Image and background areas of all pertinent specimens are measured for diffuse transmission optical density using the MacBeth Quantalog densitometer and the results are expressed as maximum (D max) and minimum (D min) densities respectively.
- composition E employing a mixture of mercuric bromide and calcium bromide as the source of halide ion.
- the reaction is catalytically EXAMPLE 3 accelerated at the exposed areas of the sensitized coating.
- Application of heat during development is controlled to obtain maximum image density consistent with minimum backgrounding.
- a first coating composition is prepared by adding grams of polyvinyl butyral (Butvar B 76") resin to a homogenatedye mixture prepared as in Example 1, with agitation in a high speed mixer. The resulting smooth liquid is coated on 5 mil transparent polyester film using a 5 mil orifice and allowed to dry.
- Segments of the coated film are separately further coated at 3 mils with compositions each containing grams of a master batch prepared by mixing together 10 grams of cellulose acetate butyrate, 100 grams of methanol, 2 grams of phthalazinone, and a solution of 6 grams of hindered phenol (Nonox WSO) in 50 ml. of acetone, together with one or more halogencontaining salts as hereinafter tabulated, the salts being first dissolved in a small quantity of methanol for ease in mixing.
- the doubly coated film segments are allowed to dry at room temperature.
- a sheet prepared as above described but using 0.05 gram mercuric bromide and 0.03 gram of calcium bromide is first sensitized by brief heating at 245 F. under darkroom conditions, exposed to light from a UV sensitometer at separate areas for different times, and devel oped by heating for 5 seconds at 245? F. The image density is then measured. Maximum density is attained under these conditions with exposure of 25 seconds and the density is maintained at substantially the same level as time of exposure is increased to a maximum of 4 minutes. Under the same exposure and development conditions the unsensitized sheet shows a constant density of 0.05.
- Example 1 The reaction between the halide salt and the silver salt to produce photosensitive silver halide is inhibited in Example 1 by the intervening film of vinyl chloridevinyl acetate copolymer, and much more effectively in Examples 2and 3 by the presence of the polyvinyl acetal resin.
- Example 2and 3 The effect of variations in the proportions of this last-named material will now be further described.
- EXAMPLE 4 A mixture of 13 parts by weight of silver behenate in 87 parts of mixed toluene and methylethyl ketone is homogenized and to each 100 grams of homogenate is added one ml. of sensitizer solution as defined in Example 1. Polyvinyl butyral resin is then added in different amounts to portions of the mixture and the well mixed compositions are separately coated at a thickness of 4 mils on polyester film, dried and overcoated at 3 mils with a composition containing 2 grams phthalazinone, 6 grams Nonox WSO reducing agent, and 1.4 ml. of a 10% solution of mercuric bromide in methanol, all dissolved in a mixture of 100 grams of acetone and 30 grams of methanol.
- the coatings are dried at room temperature. Each segment is divided into two portions. One portion of each is exposed to light and is then heated at 260 F. to incipient backgrounding. The other portion is first heated at 260 F. for two seconds and is then exposed to light and again heated. Density measurements are made on all portions, with the following results:
- EXAMPLE 5 A mixture of parts by weight of silver behenate in 85 parts of a 1:1 mixture of toluene and methylethyl ketone is homogenized to form a thick paste. To 17 parts by weight of the homogenate is added 35 parts of a 35% solution of polyvinyl butyral resin in methylethyl ketone with intensive mixing, resulting in -a milky liquid.
- phthalazinone 0.1 part of mercuric bromide, and 0.8 part of a hindered phenol, in this instance bis( 2-hydroxy-3,5- ditertiarybutylphenyl) methane.
- a hindered phenol in this instance bis( 2-hydroxy-3,5- ditertiarybutylphenyl) methane.
- the well stirred mixture is promptly coated on 3 mil transparent polyester film using a coating blade at an orifice of 3 mils and the coating is promptly dried.
- a protective coating of two mils of a 5% solution of cellulose acetate in acetone is applied over the silver-containing coating and the product is again promptly dried under forced ventilation at room temperature.
- a portion of the coated film is first exposed to a lightimage at approximately 10 foot-candle-seconds from a tungsten filament source, and is then heated for 10 seconds at 138 C. No visible change is apparent, the optical density remaining at about 0.1.
- Another portion of the film is first held for 15 seconds in contact with a metal block maintained at C. It is then exposed through a step wedge to tungsten radiation followed by heating for 10 seconds at 138 C resulting in a visible image having an optical density of 1.0 in the area exposed at 5 X 10 foot-candle-seconds.
- the film may alternatively be rendered photosensitive by the action of a volatile solvent.
- a volatile solvent As an example, acetone is applied to the surface of the film while exposed to light, and is permitted to dry slowly. The film is then heated. The solvent-treated area is darkened; the remaining areas remain unchanged.
- Sheet material which after being exposed to normal indoor illumination for several hours and then heated for a few seconds at a photosensitizing temperature within the range 2 10- 285 F. remains visibly substantially unaltered but which when first thus heated and then exposed image-wise to said illumination for not more than a few minutes and then again heated undergoes substantial darkening at the light-struck image areas; said sheet material including a stratum containing an organic silver salt oxidizing agent, a hindered phenol reducing agent for silver ion, a source of mercury ions in significant small amount up to about 0.07 mol of mercury per mol of silver, and a source of halide ion in significant small amount equivalent to not more than about fifteen molar percent based on the amount of said silver salt, and wherein said silver salt and said source of. halide ion are held in closely spaced interreactive proximity by an intervening thermoplastic film-forming binder.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE790370D BE790370A (fr) | 1971-10-22 | Feuille stable a la lumiere pour l'enregistrement d'images lumineuses | |
US00191803A US3802888A (en) | 1971-10-22 | 1971-10-22 | Light-stable sheet material for recording light-images |
CA152,476A CA981513A (en) | 1971-10-22 | 1972-09-25 | Light-stable sheet material for recording light-images |
ES407529A ES407529A1 (es) | 1971-10-22 | 1972-10-11 | Metodo para fabricar un material en lamina. |
SE7213145A SE380909B (sv) | 1971-10-22 | 1972-10-12 | Latent ljuskensligt arkmaterial och sett att framstella detta |
AR244714A AR197686A1 (es) | 1971-10-22 | 1972-10-19 | Material laminar estable a la luz para el registro de imagenes luminosas y metodo para su produccion |
CH1532372A CH583922A5 (ja) | 1971-10-22 | 1972-10-20 | |
PH14029*UA PH9454A (en) | 1971-10-22 | 1972-10-20 | Light-stable sheet material for recording light-images |
JP10516372A JPS5435484B2 (ja) | 1971-10-22 | 1972-10-20 | |
FR7237235A FR2156870B1 (ja) | 1971-10-22 | 1972-10-20 | |
ZA727489A ZA727489B (en) | 1971-10-22 | 1972-10-20 | Light-stable sheet material for recording light-images |
AU48021/72A AU471936B2 (en) | 1971-10-22 | 1972-10-20 | Light-stable sheet material for recording light-images |
AT898772A AT326478B (de) | 1971-10-22 | 1972-10-20 | Photographisches aufzeichnungsmaterial und verfahren zu dessen herstellung |
GB4855872A GB1383604A (en) | 1971-10-22 | 1972-10-20 | Light-stable sheet material for recording light-images |
BR7370/72A BR7207370D0 (pt) | 1971-10-22 | 1972-10-20 | Material laminar e processo para sua obtencao |
DE2251554A DE2251554C3 (de) | 1971-10-22 | 1972-10-20 | Lichtstabiles thermophotographisches Aufzeichnungsmaterial und Verfahren zu dessen Herstellung |
IT53515/72A IT966443B (it) | 1971-10-22 | 1972-10-20 | Perfezionamento nei materiali in foglio atti alla registrazione di immagini di luce e relativo pro cedimento di produzione |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00191803A US3802888A (en) | 1971-10-22 | 1971-10-22 | Light-stable sheet material for recording light-images |
Publications (1)
Publication Number | Publication Date |
---|---|
US3802888A true US3802888A (en) | 1974-04-09 |
Family
ID=22706992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00191803A Expired - Lifetime US3802888A (en) | 1971-10-22 | 1971-10-22 | Light-stable sheet material for recording light-images |
Country Status (17)
Country | Link |
---|---|
US (1) | US3802888A (ja) |
JP (1) | JPS5435484B2 (ja) |
AR (1) | AR197686A1 (ja) |
AT (1) | AT326478B (ja) |
AU (1) | AU471936B2 (ja) |
BE (1) | BE790370A (ja) |
BR (1) | BR7207370D0 (ja) |
CA (1) | CA981513A (ja) |
CH (1) | CH583922A5 (ja) |
DE (1) | DE2251554C3 (ja) |
ES (1) | ES407529A1 (ja) |
FR (1) | FR2156870B1 (ja) |
GB (1) | GB1383604A (ja) |
IT (1) | IT966443B (ja) |
PH (1) | PH9454A (ja) |
SE (1) | SE380909B (ja) |
ZA (1) | ZA727489B (ja) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960908A (en) * | 1973-01-22 | 1976-06-01 | Fuji Photo Film Co., Ltd. | Process for preparing organosilver carboxylates |
US4173482A (en) * | 1977-03-16 | 1979-11-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material containing an organic silver salt oxidizing agent, a reducing agent and a halogen molecule |
US4188226A (en) * | 1977-07-18 | 1980-02-12 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material containing diarylhalomethane |
DE2931920A1 (de) * | 1978-08-11 | 1980-02-21 | Asahi Chemical Ind | Bilderzeugungsverfahren und vorrichtung hierfuer |
US4332889A (en) * | 1980-05-23 | 1982-06-01 | Asahi Kasei Kogyo Kabushiki Kaisha | Post-activation type dry image forming material |
US4347310A (en) * | 1977-10-14 | 1982-08-31 | Asahi Kasei Kogyo Kabushiki Kaisha | Heat developable silver image forming materials |
US4395484A (en) * | 1982-06-25 | 1983-07-26 | Minnesota Mining And Manufacturing Company | Roomlight-stable ultraviolet-response photothermographic imaging material |
US4396712A (en) * | 1980-05-30 | 1983-08-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material |
US4433037A (en) * | 1982-07-15 | 1984-02-21 | Eastman Kodak Company | Heat erasable photographic element and process comprising silver halide |
US4442202A (en) * | 1979-04-16 | 1984-04-10 | Asahi Kasei Kogyo Kabushiki Kaisha | Post-activation type dry image forming material |
US4893148A (en) * | 1986-09-04 | 1990-01-09 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for storing dry silver salt roll film for rotary type microphotography and rotary type microphotography camera system |
US5279928A (en) * | 1992-11-30 | 1994-01-18 | Eastman Kodak Company | Method for processing a photothermographic element |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS545687B2 (ja) * | 1972-05-23 | 1979-03-20 | ||
JPS5264925A (en) * | 1975-11-25 | 1977-05-28 | Asahi Chemical Ind | Image forming material |
JPS52127326A (en) * | 1976-04-19 | 1977-10-25 | Asahi Chemical Ind | Dry image forming material |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589903A (en) * | 1968-02-28 | 1971-06-29 | Minnesota Mining & Mfg | Silver halide,heat-developable image sheet containing mercuric ion |
US3589901A (en) * | 1968-02-28 | 1971-06-29 | Minnesota Mining & Mfg | Method of making a heat developable sheet containing mercury lens |
-
0
- BE BE790370D patent/BE790370A/xx not_active IP Right Cessation
-
1971
- 1971-10-22 US US00191803A patent/US3802888A/en not_active Expired - Lifetime
-
1972
- 1972-09-25 CA CA152,476A patent/CA981513A/en not_active Expired
- 1972-10-11 ES ES407529A patent/ES407529A1/es not_active Expired
- 1972-10-12 SE SE7213145A patent/SE380909B/xx unknown
- 1972-10-19 AR AR244714A patent/AR197686A1/es active
- 1972-10-20 AU AU48021/72A patent/AU471936B2/en not_active Expired
- 1972-10-20 PH PH14029*UA patent/PH9454A/en unknown
- 1972-10-20 JP JP10516372A patent/JPS5435484B2/ja not_active Expired
- 1972-10-20 GB GB4855872A patent/GB1383604A/en not_active Expired
- 1972-10-20 FR FR7237235A patent/FR2156870B1/fr not_active Expired
- 1972-10-20 BR BR7370/72A patent/BR7207370D0/pt unknown
- 1972-10-20 IT IT53515/72A patent/IT966443B/it active
- 1972-10-20 ZA ZA727489A patent/ZA727489B/xx unknown
- 1972-10-20 DE DE2251554A patent/DE2251554C3/de not_active Expired
- 1972-10-20 AT AT898772A patent/AT326478B/de not_active IP Right Cessation
- 1972-10-20 CH CH1532372A patent/CH583922A5/xx not_active IP Right Cessation
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960908A (en) * | 1973-01-22 | 1976-06-01 | Fuji Photo Film Co., Ltd. | Process for preparing organosilver carboxylates |
US4173482A (en) * | 1977-03-16 | 1979-11-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material containing an organic silver salt oxidizing agent, a reducing agent and a halogen molecule |
US4188226A (en) * | 1977-07-18 | 1980-02-12 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material containing diarylhalomethane |
US4347310A (en) * | 1977-10-14 | 1982-08-31 | Asahi Kasei Kogyo Kabushiki Kaisha | Heat developable silver image forming materials |
DE2931920A1 (de) * | 1978-08-11 | 1980-02-21 | Asahi Chemical Ind | Bilderzeugungsverfahren und vorrichtung hierfuer |
US4287295A (en) * | 1978-08-11 | 1981-09-01 | Asahi Kasei Kogyo Kabushiki Kaisha | Image forming method and apparatus therefor |
US4442202A (en) * | 1979-04-16 | 1984-04-10 | Asahi Kasei Kogyo Kabushiki Kaisha | Post-activation type dry image forming material |
US4332889A (en) * | 1980-05-23 | 1982-06-01 | Asahi Kasei Kogyo Kabushiki Kaisha | Post-activation type dry image forming material |
US4396712A (en) * | 1980-05-30 | 1983-08-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Dry image forming material |
US4395484A (en) * | 1982-06-25 | 1983-07-26 | Minnesota Mining And Manufacturing Company | Roomlight-stable ultraviolet-response photothermographic imaging material |
US4433037A (en) * | 1982-07-15 | 1984-02-21 | Eastman Kodak Company | Heat erasable photographic element and process comprising silver halide |
US4893148A (en) * | 1986-09-04 | 1990-01-09 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for storing dry silver salt roll film for rotary type microphotography and rotary type microphotography camera system |
US5279928A (en) * | 1992-11-30 | 1994-01-18 | Eastman Kodak Company | Method for processing a photothermographic element |
Also Published As
Publication number | Publication date |
---|---|
BR7207370D0 (pt) | 1973-09-27 |
JPS5435484B2 (ja) | 1979-11-02 |
GB1383604A (en) | 1974-02-12 |
ZA727489B (en) | 1973-07-25 |
DE2251554C3 (de) | 1981-05-27 |
CA981513A (en) | 1976-01-13 |
BE790370A (fr) | 1973-04-20 |
JPS4851626A (ja) | 1973-07-20 |
AT326478B (de) | 1975-12-10 |
IT966443B (it) | 1974-02-11 |
DE2251554A1 (de) | 1973-05-03 |
AU4802172A (en) | 1974-04-26 |
ES407529A1 (es) | 1976-02-16 |
AU471936B2 (en) | 1976-05-06 |
PH9454A (en) | 1975-12-04 |
ATA898772A (de) | 1975-02-15 |
SE380909B (sv) | 1975-11-17 |
AR197686A1 (es) | 1974-04-30 |
DE2251554B2 (de) | 1980-09-04 |
CH583922A5 (ja) | 1977-01-14 |
FR2156870A1 (ja) | 1973-06-01 |
FR2156870B1 (ja) | 1978-03-03 |
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