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
  • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
  • G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
  • G03C7/24—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials combined with sound-recording

Definitions

• ABSTRACT A color photographic material suitable for an optical sound recording system having a photographic layer capable of forming silver images which remain without being bleached in the color photographic material in the bleach step after color development.
• the layer contains a bleach inhibitor having at least two oxyethylene groups.
• the present invention relates generally to color photographic materials and more particularly it relates to color photographic materials capable of recording sound images.
• color photographic materials used for cine-projection or television there is generally used an optical recording system or a magnetic recording system.
• the color photographic materials of the present invention are optical recording systems.
• the reproduction of sound in color photographic materials has ordinarily been conducted by applying to the color photographic materials a processing which forms silver images or silver sulfide images in the sound track and utilizing the densities of the silver images or silver sulfide images in the infrared region for the reproduction of sound.
• the infrared densities are usually about 1.0 to about L6.
• the sound track in color photographic print films can be formed by the process shown in, for instance, the Journal of the Society of Motion Picture and Television Engineers;" Vol. 77, l 154 (1968).
• the color image in image portions and the sound images or pattern in sound recording portions are simultaneously formed by color development in a color development bath.
• the unexposed silver halide is removed and in the bleach bath the developed silver formed in the development step is rehalogenated.
• a viscous sound developer is selectively applied to the sound track portions and the silver halide only at the sound track portions is converted into silver images.
• the silver halide at the image portions is fixed and removed, and in the stabilization bath the dyes of the image portions are stabilized.
• the densities of the silver images in infrared. regions of the sound track thus formed are utilized for the reproduction of sound.
• the reason for forming such a sound track composed of silver or silver sulfide is that the spectral sensitivity characteristics of the photoelectric cells used. for the reproduction of sound provide a sensitivity maximum in the infrared region, while the colored dyes formed in color photographic materials in the color development step donot have sufficient density in such a long wave length region.
• US. Pat. No. 3,715,208 discloses photographic elements having a auxiliary layer containing a silver bleach inhibitor.
• the silver bleach inhibitor described is clearly different from the compounds of the present invention having at least two oxyethylene groups and is inferior in effect.
• a color photographic material is composed of a support having coated thereon multilayers of silver halide photographic emulsions, each sensitized in a different sensitive region.
• dye images and silver images are formed.
• the silver images are then oxidized in a bleach process and further the oxidized silver images are removed from the color photographic material through a fix processing, whereby a color photograph consisting of dye image is obtained.
• the color photographic material of this invention has a layer forming silver images which are not removed by such a bleach step and can provide a color photograph of dye images and silver images by ordinary color processing.
• the silver images are favorably utilized as a sound track for a color photographic material.
• the color photographic material has on a support a first silver halide emulsion layer containing a coupler capable of forming a yellow dye by reacting with the oxidation product of a color developing agent and having sensitivity to a first visible region, a second silver halide emulsion layer containing a coupler capable of forming a magenta dye by reacting with the oxidation product of a color developing agent and having sensitivity to a second visible region, a third silver halide emulsion layer containing a coupler capable of forming a cyan dye by reacting with the oxidation product of a color developing agent and having sensitivity to a third visible region, and a fourth silver halide emulsion layer containing a bleach inhibitor and having sensitivity to the visible, ultraviolet or infrared regions.
• the fourth silver halide emulsion layer may have sensitivity to any of visible, ultraviolet or infrared regions.
• the sensitive region of the fourth silver halide emulsion layer duplicates the sensitive region of the first silver halide emulsion layer, the second silver halide emulsion layer, on the third silver halide emulsion layer, it is desirable to reduce the sensitivity of the former below one-fourth, preferably below one-sixth, of the sensitivity of any of the latter.
• the silver image is formed only at the high density portions of the image in the fourth silver halide emulsion layer and the silver halide act as black print, which gives quite a desirable result for color reproduction.
• the silver halide emulsion layer containing the bleach inhibitor is at least one layer formed in addition to a blue-sensitive silver halide layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer for forming an ordinary color photographic material.
• a bluesensitive silver halide emulsion containing a yellow dye-forming coupler, a red-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, a green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and a green-sensitive silver halide emulsion layer containing the bleach inhibitor are formed on a support in the aforesaid order.
• the bleach inhibitor containing layer can be sensitive to any of the ultraviolet, visible or infrared regions,
• the above passage merely defines one preferred embodiment of the invention.
• the green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler may be coated after the green-sensitive silver halide emulsion layer containing the bleach inhibitor is coated on the red-sensitive silver halide emulsion layer containing the cyan dye-forming coupler.
• the silver halide emulsion containing the bleach inhibitor can have spectral sensitivity to any of the ultraviolet, visible or infrared regions. in this embodiment only the order of the green-sensitive emulsion layer containing the magenta coupler and the greensensitive emulsion layer containing the bleach inhibitor is different from the earlier described embodiment.
• the light sensitive silver halide emulsion layers containing dye-forming couplers can be formed on the support in a different order than the above order.
• a red-sensitive emulsion layer containing a cyan dye-forming coupler, a green-sensitive emulsion layer containing a magenta dye-forming layer, a yellow filter layer containing colloidal silver or a yellow dye a blue-sensitive emulsion layer containing yellow dyeforming coupler, and a silver halide emulsion layer containing the bleach inhibitor are formed on support in the aforesaid order.
• the sound track image recording layer of the photographic material is only to record the sound track image. Latent images of the picture record should not be formed in the layer.
• Selective exposure of the sound recording and picture recording layers can be attained by the use of differential photographic speed or spectral sensitivity of the silver halide of these layers.
• the sound recording silver halide emulsion layer can be sensitized to radiation to which the picture recording layers are at least partially insensitive, such as the infrared radiation or to the region of the relatively minimum sensitivity between two picture recording layers of adjacent spectral sensitivity, such as the region between the green and red sensitive layers.
• the sound recording layer can be slower than the picture recording layer of corresponding spectral sensitivity.
• Compound 14 O CUHMCOO (CH: C 1110 ea-iil-C H Compound 15 0 Compound 16. Compound 17. Compound 18. Compound 19. Compound 20. Compound 21. Compound22. Compound 23 Compound 24. Compound 25. Compound 26.
• the amount of the bleached inhibitor to be used in the color photographic material in this invention depends primarily upon the properties of the bleached inhibitor itself, but in general is in the range of about 1 X 10*g to l X 10 g, preferably 1 X 10 5 to 1 X g, per mole of the silver in the silver halide emulsion layer.
• the amount of the bleach inhibitor may be varied with the halide composition and the grain size of the silver halide to be used in the layer.
• the thickness for the sound track recording layer can vary greatly but is generally from about 0.5 to about 5 microns, preferably from 0.5 to 3 microns.
• the mandatory components of the bleach inhibitor containing sound track recording layer of this invention are a silver halide, a hydrophilic colloid and the bleach inhibitor.
• a coupler can optionally be added thereto.
• Any silver halide emulsion conventionally used in a picture recording layer can be used in the sound track recording layer of this invention. It can comprise silver chloride, silver bromide, silver chlorobromide, silver bromoiodide, silver chlorobromoiodide or mixture thereof. it can be a negative developing out emulsion or a fogged direct positive emulsion.
• Gelatin or any conventional photographic hydrophilic colloid can be used as the vehicle for the silver halide in the sound track recording layer.
• the sound track recording layer can also contain other addenda such as sensitizing dyes, hardeners for the hydrophilic colloid or coating aids.
• addenda such as sensitizing dyes, hardeners for the hydrophilic colloid or coating aids.
• the selection of these and other addenda and the method of their incorporation in the silver halide emulsion of the sound track recording layer can be selected by the skilled artisan who wishes to prepare the emulsion considering the particular end use.
• cellulose ester films such as cellulose nitrate films, cellulose acetate films, etc.
• polyester films such as polyethylene terephthalate films, etc.
• polyvinyl chloride films polystyrene films
• polycarbonate films and the like.
• the support canbe freely selected from those in the art.
• Any known photographic hydrophilic colloid can be used as a binder for the silver halide emulsion layers.
• gelatin, albumin, gum arabic, agar-agar, cellulose derivatives such as alkyl esters of carboxy cellulose, hydroxy ethyl cellulose, carboxy methyl hydroxy ethyl cellulose and synthetic resins such as polyvinyl alcohol and polyvinyl pynolidone are preferred.
• These hydrophilic colloids are preferably also used as binders for layers other than the emulsion layers in the photographic materials, e.g., a protective layer, filter layer, intermediate layer, antihalation layer, subbing layer, backing layer etc.
• the hydrophilic colloid used for various layers of the color photographic material of this invention is, profitably, hardened by a hardening agent such as an aldehyde hardening agent, a methylol. hardening agent, a 1,4-dioxane hardening agent, an aziridine hardening agent, an iso-oxazole hardening agent, a carbodiimide hardening agent, an active halogen hardening agent or an active vinyl hardening agent.
• a hardening agent such as an aldehyde hardening agent, a methylol. hardening agent, a 1,4-dioxane hardening agent, an aziridine hardening agent, an iso-oxazole hardening agent, a carbodiimide hardening agent, an active halogen hardening agent or an active vinyl hardening agent.
• a hardening agent such as an aldehyde hardening agent, a methylol.
• any silver halide emulsion conventionally used in the field of photography such as a silver bromide emulsion, a silver iodobromide emulsion, a silver chloroiodo-bromide emulsion, a silver chlorobromide emulsion, and a silver chloride emulsion.
• the picture recording layers the preferred average grain size of the silver halide is from about 0.05 to about 1.5 microns, preferably, about 0.05 to about 1 microns.
• the preferred average grain size of the silver halide is from about 0.05 to about 0.6 microns, preferably, about 0.05 to about 0.4 microns.
• the weight ratio of silver halide to binder most suitably ranges from about 0.2 to about 20 (silver halide/- binder), preferably about 0.3 to about 5 in the picture recording and sound track recording layers. These values are not limitative. However excellent results are provided when these guidelines are followed.
• the silver halide emulsions used in the color photographic materials of this invention can be chemically sensitized by active gelatin or a sulfur compound according to the process described in U.S. Pat. Nos. 1,574,944, 1,623,499 and 2,410,689. They can also be sensitized by a noble metal salt such as a palladium or a gold salt as described in U.S. Pat. Nos. 2,448,060, 2,399,083 and 2,642,361. Furthermore, they can be sensitized by a reducing agent such as a stannous salt as described in U.S. Pat. No. 2,487,850, or sensitized by a polyalkylene derivative.
• the silver halide emulsions used in this invention can contain a stabilizer such as a mercury compound, an azaindene, etc., a plasticizer such as glycerin, etc., and a coating aid such as saponin, polyethylene glycol mono-lauryl ether, etc. Furthermore, they may contain an antistatic agent, a ultraviolet absorbent, a fluorescent brightening agent, etc.
• a stabilizer such as a mercury compound, an azaindene, etc.
• a plasticizer such as glycerin, etc.
• a coating aid such as saponin, polyethylene glycol mono-lauryl ether, etc.
• they may contain an antistatic agent, a ultraviolet absorbent, a fluorescent brightening agent, etc.
• every open chain type ketomethylene yellow-dye-forming color couplers can be effectively used.
• Typical examples of such yellow dyeforming couplers are benzoylacetoanilide color couplers, pivalylacetoanilide color couplers, etc.
• Magenta dye-forming color couplers such as pyrazolone color couplers, indazolone color couplers, etc., are effectively used in this invention.
• cyan dye-forming color couplers such as phenolic color couplers, naphtholic color couplers, etc., are effectively used in this invention.
• Each of the couplers as mentioned above can have a coupling releasable or splitting off group at the active carbon atom at the coupling position thereof. It is pre- A great number of such couplers are known, but particularly desirable color couplers are color couplers forming yellow dyes having the absorption maximum in the wave length region of 420 460 mp. by reaction with the oxidation product of a color developing agent, color couplers forming magenta dyes having an absorption maximum in the wave length region of 520 570 mp. by reaction with the oxidation product of a color developing agent, and color couplers forming cyan dyes having the absorption maximum in the wave length region of 630 710 mp. by reaction with the oxidation product of a color developing agent.
• non-diffusible couplers which can be incorporated into the picture recording silver halide emulsion layers of the photographic material are those described in U.S. Pat. Nos. 1,108,028; 2,186,849; 2,206,142; 2,343,702; 2,367,531; 2,369,489; 2,423,730; 2,436,130; 2,474,293; 2,600,788; 2,689,793; 2,728,658; 2,742,832; 2,808,329; 2,998,314; 3,046,129; 3,062,653; 3,265,506; 3,311,476; 3,408,194; 3,419,390; 3,419,391; 3,458,315;
• color couplers are incorporated in the hydrophilic colloids for photographic materials by any known method. For instance, theycan be dispersed in hydrophilic colloids as a solution thereof in a high boiling organic solvent such as dibutyl phthalate, tricresyl phosphate, etc., containing, if desired, a low boiling organic solvent such as ethyl acetate, tetrahydrofuran, etc., according to the teachings of U.S. Pat. No. 2,322,027.
• the color coupler has an acid group such as a carboxylic acid group or a sulfonic acid group, it is introduced into a hydrophilic colloid as an aqueous alkaline solution thereof.
• a compound having the action of accelerating development to give high density.
• a compound having such an action there can be illustrated a compound capable of causing a coupling reaction with the oxidation product of a color developing agent, that is to say, a coupler
• the term coupler in this case means a color coupler used for usual color photographic materials as well as a coupler (colorless coupler) which does not form a colored dye.
• a coupler is particularly preferred which slightly diffuses when it is immersed in an alkaline developer and accumulates at or near the surfaces of developed silver as the unreacted coupler or as the coupling product.
• Such a compound is considered to have the effect of protecting the silver image from the action of a bleaching agent and to reduce the bleaching speed.
• the color coupler used in this invention be provided with nondiffusing property by having a ballast ample of the coupler having such a property, there is illustrated a coupler having a diffusion resisting group, (for example, in coupler A:
• CII2CII Q2115 I provides this effect).
• the group preferably includes about six to about 12 carbon atoms and is attached directly, or through a bridging group such as an ether, es-
• Couplers other than the above can be provided with a desired diffusion resisting property by selecting the degrcc ofdissociation of couplers in an alkali and the hydrophilic property thereof. Practical examples of cou- 5 plcrs having such properties are illustrated below:
• Coupler P IH'I CONIHCIIQJO(CllrhClI:
• Such a coupler can be introduced into the sound track forming layer in the same way as in case of introducing the heretofore described color couplers Since those couplers are used for accelerating the silver image formation, the amount can vary greatly.
• couplers is generally about 2 X 10 to about 5 X mol, preferably 5 X 10" to 5 X l0 001 m
• the infrared coupler forms a dye having the absorption maximum at a wave length region longer than 725 m z by a coupling reaction with the oxidation product of a color developing agent.
• the infrared density of the silver image in the sound track is substantially utilized, because photocells in projectors as are used have sensitivity in the infrared region.
• the infrared density is usually 1.0 to 1.6 in the sound track.
• an infrared coupler is incorporated in an emulsion layer of the invention, an infrared dye is formed after the development. This infrared dye density contributes tothe sound track density together with the silver image in the sound track.
• the color photographic material of this invention can be imagewise and sound-image wise exposed in any ordinary manner and then processed according to any ordinary color processing steps.
• the main steps of the color processing are color development, bleaching and fixing. Between those steps, water washing may be conducted, if necessary. After fixing, the color photographic material is washed and dried but it is desirable that the color photographic material be processed in a stabilization bath before drying.
• photographic processing temperatures typically range from about C or less to 60 C or higher. Temperatures of about C or higher are suitablefor high speed processing procedures. Processing times for each processing step can widely vary, depending on the processing temperature, but usually range from several seconds to several minutes or more.
• Useful color developers include aqueous alkaline solutions containing a color developing agent.
• a color developing agent there is preferably used any known primary aromatic amine type dye-forming developing agent, for instance, phenylenediamines such as N,N-diethyl p-phenylenediamine, N-ethyl-N- hydroxyethyl p-phenylenediamine, N-ethyl-N- hydroxyethyl-2-methyl p-phenylenediamine, N-ethyl- N-methanesulfoneamide 'ethyl-3-methyl-4- aminoaniline, N,N-diethyl-2-methyl-pphenylenediamine, sulfates, hydrochlorides or sulfites thereof, and the like. See C.E.K. Mees and TH. James,
• the color-developer may further contain additives as are ordinarily used in the art such as an alkali metal sulfitc, carbonate, bisulfite, bromide, iodide, benzyl alcohol, etc.
• Any bleach solution containing a known bleach agent such as a ferricyanide such as potassium ferricyanide and sodium ferricyanide, a bichromate such as potassium bichromate and sodium bichromate, etc., can be used in this invention.
• a fix solution containing a known fixing agent such as sodium thiosulfate, potassium thiocyanide, etc., can be used.
• the bleach step and the fix step can be conducted in one bath. This has been impossible in conventional processes requiring sound development.
• a blix bath in place of the bleach bath and the fix bath in this invention, the processing steps of the color photographic material of this invention can be further simplified and also the processing time can be reduced.
• Solvents for silver halides as are used in blix solutions known to the art can all be used in the blix solutions for processing the color photographic materials of this invention.
• a water-soluble thiosulfate such as sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, etc.
• a water-soluble thiocyanide such as sodium thiocyanide, potassium thiocyanide, ammonium thiocyanide, etc.
• a water-soluble organodiol fixing agent having an oxygen atom or a sulfur atom, such as 3-thia-l,5-pentanediol, 3,6-dithia-l,8roctanediol, 9-oxa-3,6,l2,15-tetra-thia-1,17-heptadecanediol, etc.
• Oxidizing agents for silver used in the blix solutions of the prior art can all be used in the blix solutions in this invention.
• oxidizing agents are a water-soluble ferricyanide such as sodium ferricyanide. potassium ferricyanide, ammonium ferricyanide, etc.; a water-soluble quinone such as quinone, chloroquinone, methyl-quinone, etc.; a water-soluble ferric salt such as ferric chloride, ferric sulfide, ferric thiocyanide, ferric oxalate, etc.; a water-soluble cobaltic salt such as cobaltic chloride, cobaltic ammonium nitrate etc., and the like.
• a multi-valent cation of a watersoluble organic acid or an alkali metal complex salt of a water-soluble organic acid can preferbly be used as the oxidizing agent.
• organic acids are malonic acid, tartaric acid, ethylmalonic acid, malic acid, fumaric acid, diglycolic acid, thioglycolic acid, ethyliminodipropionic acid, nitrotriacetic acid, ethylenediaminetetraacetic acid, aminotriacetic acid, ethylenedithioglycolic acid, dithioglycolic acid, and the like.
• multi-valent cations are ferric ion, cobaltic ion and cupric ion.
• An iron-sodium complex salt of ethylenediaminetetraacetic acid is particularly useful as the bleaching agent.
• additives used for ordinary blix solutions can profitably be used.
• additives are sodium sulfite, potassium bromide, potassium iodide, sodium iodide, polyalkylene oxide, 2-mercaptoimidazole, 3-mercapto-l ,2,4- triazole, dithioglycol, thiourea, ethylenethiourea, hy-
• droxylaminc salts p-aminophenol, ascorbic acid, semicarbazide, hydrazine, etc.
• Bleaching agent below Sodium carbonate (mono-hydrate) g Boric acid 5g Sodium sulfite 5g Fixing agent below The blix solution is adjusted to have a pH of 6.0 and the volume is adjusted to 1.0 liter by adding water.
• Blix bath Bleaching agent Fixing agent (a) Ferric sulfate (0.05 mol) Sodium thiosullatc disodium ethylcnediamine (0.6 mol) tctraacetatc (0.] mol) (11) Sodium iron (ill) ethylcnc- Sodium thiosulfate diaminc tetraacetic acid (0.] mol) Sodium thiosuifate (0.6 mol) 35 Typical bleach agents are discussed in detail in the Journal of the Society of Motion Picture and Television Engineers 61, 667-701 and US. Pat. No. 3,189,452;
• the silver image necessary for recording a sound image is formed simultaneously with yellow, magenta, and cyan dyes for forming color images.
• silver images are also formed at the color image portions, but those silver images are easily bleached in the above-mentioned bleach bath or blix bath.
• the silver image formed in the emulsion layer containing the bleach inhibitor is not bleached in the bleach bath or blix bath and remains as the silver image.
• a sound track of silver images is provided. Therefore. there is the advantage, in the case of using the color photographic material of this invention, that it is not accompanied by a reduction in density by the action of light. 5 heat, or moisture, which is ordinarily observed in a recording band made of an organic dye having absorption at the infrared region.
• EXAMPLE 1 The opposite surface of a cellulose acetate film support to the surface having an antihalation layer containing carbon black was coated with a subbing layer and on the subbing layer was coated a. coating composition containing a silver iodobromide emulsion containing 1.2 mol percent of iodide and 0.05 mol of silver and yellow coupler, i.e., a dispersion prepared by dispersing a-(Z-methyl-benzoyl)-3-[a-(2,4-dirtert-amylphenoxy)acetamide]-acetoanilide, of the formula -oooHlooNH- CHa in a mixture of dibutyl phthalate and ethylacetate to form a blue-sensitive layer.
• a silver iodobromide emulsion containing 1.2 mol percent of iodide and 0.05 mol of silver and yellow coupler, i.e., a dispersion prepared by dispers
• a color photographic print film was also prepared by gf 38' the same way as above except that a sound track formw 40 sgconds ing layer was formed between the green-sensitive layer 31 2 3 m and the protective layerin Sample I by coating a coati i mg composition containing a silver chlorobromide development 0 emulsion (0.06 mol of silver) containing 80 mol perfix 3 3 cent of bromide and a dispersion of 6.45 g of the aforewash 5 Second; said coupler A in 1.3 ml. of dibutyl phthalate. 1.5 g of smhllllflllon 10 Seconds the aforesaid compound 42 as a bleach inhibitor, and the sensitizing dye used in the green-sensitive layer of. the Sampe 1.
• the film was designated Sample 11.
• a color photographic print film was further prepared in the same way as in the case of preparing sample 11 except that the dispersion of coupler A was omitted.
• compositions of the processing baths used in the 'above processing were as follows:
• the film was designated Sample 111. l Water 800 ml Furthermore, a color photographic prmt.fi1m was Sodium carbonate(mono-hydrate) l().(lg also prepared in the same way as in the case of prepar- Sodlum Sulfate (anhydrous) g Water to make 1 liter ing Sample 11 except that compound 42 and the disper- Color developer; sion of coupler A were omitted.
• the film was deslgg t h t h h t 28 0 turn exame ap osp a e g nated Sample Anhydrous sodium sulfite 4.0 g
• the coated amount of silver 1n the sound track formtnlno-S-diethylammotoluene hydrochloride 3.0 g ing layers of Samples 11 to IV was 1.5 g/m and the gggli'ghf g gm gg 38g amounts of all components present were as follows: water to make Tu red density was obtained in Sample II.
• EXAMPLE 2 A color photographic print film was prepared in the same way as in the case of preparing Sample II in Ex- 21 22 f I h d d I ample 1 except that a black antihalation'layer contain- Fira t t 1111011 IX 600 m] mg colloidal silver and gelatin was formed on the sub- Sodium thiosulfatc (5-hydrate) 240 g bing layer of Example 1 in place of forming the antiha- Sulfile 3:85 lation layer containing carbon black on the back sur- Boric acid 60 g 5 face of the support.
• the film was designated Sample V. Potassium alum -9 g
• the amounts of coating for this layer were: Water to make 1 liter Bleach solution:
• Liquid B 300 l Water Tragacanth gum g 2 Table 2 Denatured alcohol 10 ml 0 (Liquid C) Ethylenediamine (70%) +7 I ml Sample V Liquid A was mixed with liquid B, and just before use Process B liquid C was added together with water to the mixture I f d density v to make the total volume 1.0 liter. Stabilization bath:
• Example 1 good results as in Example 1 were w obtained in the color photographic material of this infig (37%) vention having an antihalation layer containing colloi- Polyethylene glycol (MW. 400) 40% aqueous soln. 5 ml dal silver. water to make l liter EXAMPLE 3 Process B
• Each of Samples 1, ll, [[1, IV, and V in Examples 1 and 2 was exposed as in Example l and then processed Processing step Temperature Time v according to Process C shown below, and then the inafligg 5 frared density measured as in Example 1.
• compositions of the processing baths other than the blix bath were the same as those in aforesaid process A.
• EXAMPLE 4 A color photographic print film was prepared in the sameway as in case of preparing Sample ll in Example 1 except that 5.5 g of the aforesaid coupler P was used in place of the coupler A and L5 g of the aforesaid compound 44 was used in place of compound 42.
• the film was designated Sample VI. Sample VI was exposed, processed, and the infrared density was measured according to the manner of Examples 1 and 3.
• EXAMPLE 6 Color photographic films were prepared in the same way as in Example 5 except that 1.5 g of each of the aforesaid compounds 10, 40, 43, 45, 51, and 59 was used in place of compounds 42 or 44 and 2.7 g of the aforesaid coupler K was used in place of coupler A or coupler P.
• the films were designated Samples IX, X, XI, Xll, XIII and XIV, respectively. These samples were exposed, processed, and infrared density was measured according as in Example 4. The results are shown in Table 6. The results show that high infrared The results are shown in Table 4. 3 density was obtained in each case.
• Sample VI which was a color photographic material of this invention.
• Sample VI was a color photographic material of this invention.
• a high infrared density was similarly obtained.
• EXAMPLE 5 films were designated Samples XV and XVI. Those samples were exposed, processed, and infrared density measured as in Example 4. The results are shown in Table 7. As is shown in the table, high infrared density was obtained in each case Samples ll, ill, and V were exposed and processed as in Example 4 and the infrared density measured. To determine the change in density of the recording band during storage, the samples were stored for 14 days under the conditions of 60 c, and 70% relative humidity, and then the infrared density was measured again. The changed percentages of density before and after the storage test are shown in Table 8.
• a process of forming dye images and silver images in the color photographic material as set forth in claim 1 comprising subjecting said color photographic material to exposure, color development, bleaching and fixmg.

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• 1972
  • 1972-05-16 JP JP47048451A patent/JPS5129921B2/ja not_active Expired
• 1973
  • 1973-05-15 US US360507A patent/US3869287A/en not_active Expired - Lifetime
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