Abstract: A silver halide color photographicmaterial capable of providing an excellent rapid processing property and sharpness as well as forming little stain on a background after processing.

Abstract: A silver halide color photographic material comprises, a paper support having thereon a photographic constituent layer containing at least each one of a yellow coupler-containing layer, a magenta coupler-containing layer and a cyan coupler-containing layer, wherein that said magenta coupler is represented by formula (I), the weight ratio of a high boiling organic solvent in the same layer as said yellow coupler to said yellow coupler is 0.40 or less, and the pH value of the raw paper constituting said support is in the range of 5 to 9.In a preferred embodiment, at least one of the yellow couplers is represented by formula (II).

Abstract: A silver halide light-sensitive material is disclosed, which has high light-sensitive speed and improved gradation and sharpness. The light-sensitive material comprises a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of the polyolefin layers. The polyolefin layer on which the silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of the polyolefin resin contained in the polyolefin layer, and surface of the polyolefin layer on which the emulsion layer to be provided has a di-dimensional arithmetical mean deviation of the profile, SRa, of not larger than 0.14 .mu.m, and the silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed.

Abstract: In the support member for photographic printing paper of the present invention, a white reflective layer is placed on a base material by coating and drying a coating composition, said coating composition contains a white pigment having titanium oxide as principal component and a binder having a copolymer of vinyl chloride - vinyl acetate and maleic acid anhydride soluble in organic solvent and having polymerization degree of 250 or more, said copolymer containing vinyl chloride, vinyl acetate and maleic acid anhydride by component ratio of 20-90 weight %: 5-50 weight %: 2-10 weight %. Thus, the support member can provide photographic image with high resolving power, has high bonding property with base material and silver halide emulsion layer, is easier to produce, and causes discoloring less frequently due to time or heat.

Abstract: A photographic paper support is prepared formed by the following method: forming a paper sheet and drying it to about 10 percent water; applying an aqueous solution of hydrophobically substituted amylose starch to both sides of the sheet; drying this sheet to below 5 percent water; applying an aqueous solution of the hydrophobically substituted amylose starch to both sides of the sheet; drying this sheet to below about 10 percent water; and extruding a layer of polylefin on both sides of the paper sheet.A silver halide color photographic reflection print element is formed by coating at least one color-forming silver halide emulsion layer on a photographic paper support prepared by the above described method.

Abstract: A silver halide color photographic material comprising:a reflective support having thereonat least one light-sensitive silver halide emulsion layer,wherein the reflective support comprises a support substrate covered with a water resisting resin layer,wherein the water resisting resin layer, on the side of the silver halide light-sensitive layer, contains titanium oxide grains in an amount of 14 wt % or more,wherein the photographic material has an optical reflection density of 0.70 or above at 680 nm, andwherein the light-sensitive silver halide emulsion layer contains at least one nondiffusible oil-soluble coupler, which forms a dye on coupling with the oxidation product of an aromatic primary amine color developing agent, dispersed therein together with at least one water-insoluble homo- or copolymer.

Abstract: The invention provides a photographic element comprising a paper substrate with a polyolefin coating provided on at least one surface, a hydrophilic colloid layer on the polyolefin coating, and at least one light sensitive silver halide emulsion above the hydrophilic colloid layer, wherein said hydrophilic colloid layer comprises a removable antihalation material and from about 20 to 80 percent by weight of a white pigment, and from about 15 to 35 percent by weight of hollow microspheres having a diameter of from about 0.1 to about 1 .mu.m.

Abstract: Disclosed is A silver halide photographic light-sensitive material formed by coating at least one silver halide photographic emulsion layer on a reflective support having irregularities at random on the surface, wherein the intensity of Wiener spectrum of the reflective support at a spatial frequency of f cycles/mm given by the expression f=1120/CS is less than 90% of the geometric mean of the intensity at a spatial frequency of f/2 cycles/mm and the intensity at a spatial frequency of 2f cycles/mm when the coating speed for said silver halide emulsion layer is CS (m/minute). The silver halide photographic light-sensitive material according to the invention, has a proper gross and a high capability of depicting details of an image.

Abstract: Disclosed is a heat developable light-sensitive material that comprises a support having thereon at least one light-sensitive layer containing a silver halide emulsion, a dye-donating substance and a reducing agent, wherein at least one subbing layer comprised of a hydrophobic polymer is provided between the light-sensitive layer nearlest to the support and the support, and at least one said subbing layer contains a photographic useful reagent.A heat developable light-sensitive material according to this invention, can provide control fogging and raise the maximum density, or can improve the maximum density difference without exerting adverse effects on sensitivity and preservability.

Abstract: A photographic element comprising a paper substrate said paper substrate comprises wood fiber and polyvinyl alcohol polymer located in heavier concentration near the surface of said paper with a polyolefin coating provided on at least one surface, a hydrophilic colloid layer on the polyolefin coating and a light sensitive silver halide emulsion on the hydrophilic colloid layer, said hydrophilic colloid layer comprising from about 20 to 80 percent by weight of a white pigment, and from about 15 to 35 percent by weight of hollow microspheres having a diameter of from about 0.1 to about 1 .mu.m.

Abstract: A heat-developable light-sensitive material is disclosed. The material comprises a paper support and provided thereon, a subbing layer containing at least two hydrophobic polymers different from each other in chemical composition, and a light-sensitive layer containing a hydrophilic binder, a light-sensitive silver halide emulsion, a dye-providing substance and a reducing agent in that order. The subbing layer is provided on the paper support by coating a solution containing the hydrophobic polymers dissolved in a solvent, at least one of said polymers being substantially insoluble in the solvent independently.

Abstract: The invention is generally accomplished by forming a translucent display material comprising a substrate and sensitized layers wherein said substrate comprises a paper that has a light transmission rate of greater than 17 percent. It is preferred that the paper have a basis weight of less than 120 grams per square meter that is resin-coated on both sides. The paper of the invention when exposed and developed has a difference between maximum density and minimum density of greater than 2.5. The sensitized layers prior to imaging comprise at least one layer comprising cyan dye-forming coupler, at least one layer comprising magenta dye-forming coupler, and at least one layer comprising yellow dye-forming coupler. In preferred forms, the paper has a basis weight of between 70 and 100 grams per square meter for a balance of translucence and strength. The couplers preferably are present in the following amounts: cyan coupler greater than 0.6 grams per square meter, magenta coupler greater than 0.

Abstract: An improved photographic support, especially useful for color prints, is comprised of a paper base material having thereon a polyolefin coating containing a white pigment and an optical brightener, such as a mixture comprising inclusion compounds of certain fluorescent bis(benzoxazolyl)-stilbenes.

Abstract: A silver halide color photographic material comprising a support having thereon at least three photosensitive layers containing a silver chloride emulsion or a silver chlorobromide emulsion having an average silver chloride content of at least 96 mol % and containing substantially no silver iodide, said at least three photosensitive layers comprising a cyan coupler-containing layer, a magenta coupler-containing layer and a yellow coupler-containing layer, wherein said at least three photosensitive layers each has different spectral sensitivity peak in the photosensitive wavelength regions of 650 to 690 nm, 720 to 790 nm and 770 to 850 nm, respectively, and the total coating weight of silver halide is not more than 0.78 g/m.sup.2 in terms of silver, and the above-disclosed material wherein the support is a reflective support comprising a base paper impregnated with a synthetic polymer through the surface of the base paper, and a white pigment-containing water-resistant resin layer coated on the base paper.

Abstract: An image forming method using a heat developable light-sensitive material is disclosed. The light-sensitive material is lowered in curling caused by humidity changing at room temperature or heating at development. The method comprises the following steps ofimagewise exposing to light a heat developable light-sensitive material comprising a paper support having thereon a subbing layer comprising a hydrophobic resin and a light-sensitive layer being provided on the subbing layer, in which the light-sensitive layer comprises a hydrophilic binder, light-sensitive silver halide grains and a dye providing substance,developing the light-sensitive material be heating,contacting the light-sensitive material with a dye-receiving material, andtransferring a diffusible dye formed in the light-sensitive material to the dye-receiving material in the presence of a solvent. The hydrophobic resin of the subbing layer has a glass transition point of from 30.degree. C. to 250.degree. C.

Abstract: There is disclosed a support for photosensitive materials which comprises base paper comprising natural kraft pulp, and a resin layer formed on the base paper, said natural kraft pulp being produced by digesting wood chips by the kraft process, and washing the digested product in the presence of an anti-foaming agent or a foam-inhibitor, followed by bleaching by the use of chlorine or an oxidizing agent containing at least one chlorine atom, and said natural kraft pulp having a number of areas tarnished by silver tarnishing reaction of 20 or less. This support exhibits good photographic properties when a silver halide photosensitive layer is provided thereon.

Abstract: There is disclosed a method for processing a silver halide color photographic material paper base of which contains at least one of specified sizing agents with a color developer containing a hydroxylamine compound. According to the disclosure edge stain due to penetration of the color developer into the paper base is prevented.

Abstract: A support sheet for a photographic printing sheet, having a high resistance to scratching, curling and a enhanced ability to be sharply cut, and provided with front and back surface coating layers formed respectively on the front and back surfaces of a substrate sheet and comprising, as a main component, a polyolefin resin; the polyolefin resin in the front surface coating layer comprising 30 to 70% by weight of a linear low density ethylene-propylene or butene-1 copolymer (L-LDPE) having a density of 0.915-0.935 g/cm.sup.3 and a melt index of 15-30 g/10 min and 30 to 70% by weight of a high pressure-processed low density polyethylene (HP-LDPE) having a density of 0.915-0.928 g/cm.sup.3 and a melt index of 1 to 5 g/10 min.

Abstract: A photographic printing paper support is disclosed comprising a base paper having a polyolefin coated on both sides thereof, wherein the base paper is internally sizing-treated with an epoxidized fatty acid amide composition comprising (1) behenic acid or a higher fatty acid mixture having behenic acid as a main component, at least one of diethylenetriamine and triethylenetetramine and (3) epichlorohydrin.

Abstract: An imaging base paper is disclosed having a center raw-base cellulose paper, a front layer of polyolefin laminated to the front side of the center raw-base cellulose paper and a rear layer of polyolefin laminated to the rear side of the center raw-base cellulose paper having areas of a higher gloss level in first regions of the rear side of the imaging base paper and having areas of a lower gloss level in second regions of the rear side of the imaging base paper surrounding the first regions. The gloss difference between the first regions and the second regions on the coated paper amounts to from about 20 to 80, as measured with a measuring head under an angle of 60 degrees, according to standard ASTM D 523.

Abstract: Photographic base paper comprising a surface ply 1 of photographic grade paper and at least one backing ply 3 of a stronger paper such as a kraft paper provides smoothness and rigidity at least as good as conventional wholly photographic grade paper at reduced raw materials cost. Preferred weight of the surface ply is a range of from 20 to 50 gm.sup.-2.The paper can be made on a two-wire Fourdrinier machine (FIG. 5) or on a single wire machine with a secondary headbox (FIGS. 6 and 7).

Abstract: The present invention provides a photographic support which comprises a base paper and polyolefin resin layers provided on both sides of the base paper by extrusion coating of molten polyolefin resins, wherein the polyolefin resin layer provided on the side of the base paper opposite to the side to be coated with photographic emulsion layer has multi-layer construction and a method for producing the photographic support. This photographic support is excellent in anticurl properties and adhesion between the base paper and the resin layer.

Abstract: A water proof support material for light-sensitive materials with an anti-curl layer on the backside, the anti-curl layer comprising at least:(a) a protein binder,(b) a reaction product of triazine and formaldehyde,(c) an N-methylol compound, and(d) an aliphatic polyhydric alcohol.

Abstract: A light-sensitive material comprises a light-sensitive layer containing silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a paper support (the silver halide and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer). Another light-sensitive material comprises a light-sensitive layer containing a photo polymerizable composition or a photo polymerizable compound provided on a paper support (the photo polymerizable composition or photo polymerizable compound is contained in microcapsules which are dispersed in the light-sensitive layer). The paper support employs a base paper sheet having a void volume of not higher than 40%.

Abstract: A photographic support having a layer of a white pigment and an electron beam hardenable resin on a support can be improved in adhesive strength, surface appearance and other properties by forming an outermost layer containing an ultraviolet curable resin, or impregnating an electron beam hardenable resin into the support, or inserting an electron beam hardenable leveling agent into the white pigment-resin layer, or forming an outermost layer containing a fluorescent agent and an electron beam hardenable resin.

Abstract: A halftone dot image pattern is formed on a support comprising a paper base, a polyolefin layer on at least one side of said paper base in a coverage in the range of 5 to 40 g/m2, on the opposite side of the polyolefin layer a binder layer comprising a hydrophilic colloid binding agent and white titanium dioxide pigment particles having an average grain size in the range of 200 nm to 450 nm, said pigment particles being present in a coverage of at least 0.5 g per m2 up to 300% by wt of the total binder contents. The half tone dot image pattern is on the exterior side of the binder layer and is a halftone relief image pattern having at least color pigmented gelatin-containing layer, preferably three or four such layers of different colors; e.g., cyan, magenta, yellow and optionally black. The resultant halftone material has a controlled visual appearance; e.g., for color proofing purposes, especially with respect to dot gain.

Abstract: A method of producing a self-supporting film carrying a positive photographic image is provided, comprising splitting an image-carrying positive photographic film in a manner known per se and removing remaining adhering paper residues from the image part and using the so obtained image part as the self-supporting film having thickness of less than 50 .mu.m. Also embodiments are shown for carrying out this process continuously.

Abstract: Disclosed is a reflective support for photography, comprising a polyester film containing titanium oxide particles, wherein the particle size distribution of the titanium oxide particles with particle sizes of 0.05 .mu.m or more satisfies the formula shown below:N/.gamma..gtoreq.50 (I)N: number of the titanium oxide particles with particle sizes of 0.05 .mu.m within 10 .XI.m.times.10 .mu.m area in a transmission type electronmicrography photographed on a film sliced into a thin strip of about 2,000 .ANG. thick;.gamma.: the ratio of d.sub.80 to d.sub.20 when the particle distribution of the titanium oxide particles is measured by the above transmission type electronmicrography photographed:.gamma.=d.sub.80 /d.sub.20d.sub.80, d.sub.20 : respective particle sizes (.mu.m) when the integrated distribution of number of titanium oxide particles is 80% and 20%. Disclosed is also a photographic printing paper comprising the reflective support.

Abstract: In the preparation of a light sensitive photographic paper wherein the paper support contains a polyolefin coating the polyolefin is subjeced to two corona discahrge treatments, the first to prevent optical brightener from exuding from the polyolefin upon storage and the second after storage and before coating the next adjacent layer unto the polyolefin surface.

Abstract: A silver halide color photographic material comprising a support having thereon at least three photosensitive layers containing a silver chloride emulsion or a silver chlorobromide emulsion having an average silver chloride content of at least 96 mol % and containing substantially no silver iodide, said at least three photosensitive layers comprising a cyan coupler-containing layer, a magenta coupler-containing layer and a yellow coupler-containing layer, wherein said at least three photosensitive layers each has different spectral sensitivity peak in the photosensitive wavelength regions of 650 to 690 nm, 720 nm and 770 to 850 nm, respectively, and the total coating weight of silver halide is not more than 0.78 g/m.sup.2 in terms of silver, and the above-disclosed material wherein the support is a reflective support comprising a base paper impregnated with a synthetic polymer through the surface of the base paper, and a white pigment-containing water-resistant resin layer coated on the base paper.

Abstract: A novel heat developable light-sensitive material is disclosed, comprising light-sensitive silver halide emulsion layers on a paper support, wherein at least one subbing layer capable of inhibiting fog is provided interposed between the undermost layer among said light-sensitive silver halide emulsion layers and said paper support. In a preferred embodiment, the subbing layer comprises a binder and at least one material capable of inhibiting fog.

Abstract: Method and apparatus for treating ultrahigh molecular weight, high strength polyolefin to improve its adhesive bonding to a resin such as epoxy, vinyl ester, polyester, polyurethane, polyolefin or thermoplastic rubber are provided. The method includes the steps of soaking the polyolefin in a first solution comprising (i) an aromatic ketone photosensitizer, and (ii) a first solvent selected from the group consisting of a benzene derivative, an alkyl halide, and a cyclic alkane; removing any excess first solvent; coating the surface of the polyolefin with a second solution comprising (i) about 15 to 70 weight percent of a monomer independently selected from the aforementioned group, (ii) about 0.25 to 5 weight percent of an aromatic ketone photosensitizer, and (iii) about 25 to 84.

Abstract: A photographic support having an undercoating layer on a resin coated base sheet, said undercoating layer comprising (a) a hydrophilic colloid, and (b) a special amphoteric surface active agent, or (a) a hydrophilic colloid, (b') a p-hydroxybenzoic acid ester and/or a special amphoteric surface active agent and (c) a special isothiazoline-3-one compound, provides excellent coating and adhesive properties to a photographic emulsion layer formed on the undercoating layer.

Abstract: A sheet or web material being a subbed or unsubbed hydrophobic resin support or paper support coated with at least one hydrophobic resin layer having at least on one side an outermost antistatic layer containing colloidal silica, characterized in that the antistatic layer is free from any cationic surfactant and consists of at least 70% of weight of colloidal silica having an average particle size smaller thatn 7 nm and a surface area of at least 500 m2 per gram, the colloidal silica being present at a coverage of at least 50 mg per m2.

Abstract: A photographic element which is adapted for an image-forming process using a thermal-developing-process image-forming apparatus equipped with rollers for conveying photographic elements capable of forming images by thermal development and which comprises a support having a stiffness in the machine direction of 4.0 to 5.0 g.cm and a stiffness in the transverse direction of 2.9 to 3.4 g.cm.

Abstract: A silver halide photographic light-sensitive material comprising a reflective support having a transmission density of not more than 0.8, having thereon, a photographic component layer comprising a silver halide emulsion layer and a layer including at least one anti-halation layer formed closer to said support than said silver halide emulsion layer is disclosed. In the photographic material, degradation of image sharpness due to use of a reflective support having low transmission density is prevented.

Abstract: A support sheet for photographic paper having an enhanced resistance to curling, especially twist-curling, comprises a substrate paper sheet composed of a half stratum portion thereof at the face side of a surface on which a photographic emulsion layer will be formed and the other half stratum portion thereof at the back side of the opposite surface, and two polyolefin resin coating layers on the two surfaces of the substrate paper sheet, the substrate paper sheet having a resiliency satisfying the relationships (I) and (II):1.5.ltoreq.E.sub.fl /E.sub.bt .ltoreq.2.25 (I)=and ##EQU1## wherein E.sub.fl =a modulus of elasticity of the face side half stratum portion in the longitudinal direction of the substrate, E.sub.bt =a modulus of elasticity of the back side half stratum portion in the transverse direction of the substrate, E.sub.ft =a modulus of elasticity of the face side half stratum portion in the transverse direction of the substrate, and E.sub.

Abstract: An image-bearing paper is provided which contains a bonding agent that is reticulated by ionizing rays, or bears a coating on at least one surface that contains a bonding agent reticulated by ionizing rays, whereby the bonding agent is predominantly formed of unsaturated substances, and reticulation takes place by means of ionizing rays in or on the paper, which is used as a support material for thermally developable photographic layers, or as an image-receiving material for thermally developed images produced by diffusion of the image-forming substance.

Abstract: A photographic support comprising a paper sheet coated with a polyolefin on both surfaces thereof, in which the paper sheet contains an alkylketene dimer mixtures, its alkyl chain composition being defined by the following equation: ##EQU1## in which [C.sub.14 and less] means the content of alkyl chains having carbon atoms of 14 and less; [C.sub.16 ] means the content of an alkyl chain having 16 carbon atoms; [C.sub.18 ] means the content of an alkyl chain having 18 carbon atoms; and [C.sub.20 and more] means the content of alkyl chains having carbon atoms of 20 and more, the alkyl chain contents being represented by % in number of the total alkyl chain content of the alkylketene dimer composition. The photographic support is effectively resistant to permeation of a developing solution.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a paper support. The paper support comprises a coating layer containing a hydrocarbon resin provided on a base paper sheet, and the paper support has a low water absorptiveness of not more than 1 g/m.sup.2 on the surface of the coating layer on which the light-sensitive layer is provided. The water absorptiveness being a value measured according to the Cobb test method.

Abstract: A water-resistant support material for light-sensitive materials is disclosed, which is coated on one side or two sides with a polyolefin resin. At least the polyolefin resin of the front-side coating is a copolymer of ethylene and a non-ethylene .alpha.-olefin. This copolymer allows to add to the coating mass a high content in light-reflecting white pigment.

Abstract: A method of producing a self-supporting film carrying a positive photographic image is provided, comprising splitting an image-carrying positive photographic film in a manner known per se and removing remaining adhering paper residues from the image part and using the so obtained image part as the self-supporting film having thickness of less than 50 .mu.m. Also embodiments are shown for carrying out this process continuously.

Abstract: A silver halide photographic material that has a photographic emulsion layer formed on a support comprising paper base coated with a resin on both sides is disclosed. In this photographic material, a hydrophilic colloidal layer containing a material that has an absorption in the wavelength region in which the photographic emulsion layer has sensitivity is provided between the emulsion layer and the support. The surface of the support on the side where the hydrophilic colloidal layer is to be coated has a center-line-average roughness, Ra, of 0.3-1.5 .mu.m, and the thickness of this hydrophilic colloidal layer is at least one half the center-line-average roughness, Ra, of the surface of said support. This photographic material has the advantage of imparting improved sharpness and a high degree of whiteness, as well as high sensitivity.

Abstract: A light-sensitive material comprises a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a paper support, wherein the paper support comprises a coating layer containing a hydrophobic polymer and a pigment provided on a base paper sheet. The coating layer has a pH value in the range of 4 to 9.

Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.

Abstract: This invention is a silver halide photographic light-sensitive material comprising a paper support bearing thereon at least one silver halide emulsion layer containing a hydroxytetrazaindene.

Abstract: In order to be able to cast additional layers on auxiliary layers of photographic materials immediately after the latter have been cast without encountering any difficulties as regards uniformity of the cast layer and wet adherence due to incomplete conversion of the gelatine from the sol to the gel form, the auxiliary layer must contain an effective quantity of at least one compound obtained by the reaction of trihydric to hexahydric alcohols with propylene oxide.

Abstract: A light-sensitive material comprises a paper support and a light-sensitive layer containing silver halide grains, a reducing agent and an ethylenic unsaturated polymerizable compound. The silver halide grains and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer. The light-sensitive layer has a pH value of not higher than 8. The paper support has a pH value of from 5 to 9. An image-forming method employing the light-sensitive material is also disclosed.

Abstract: A photographic paper support, which carries on both sides a water resistant coating of polyethylene, is disclosed. The polyethylene is a polyethylene of relatively low density of between 0.930 and 0.936 gram per cubic centimeter, which is produced according to high pressure polymerization. In particular, low density polyethylene (LDPE) produced according to the high pressure method with a density of 0.934 gram per cubic centimeter can be employed.

Abstract: A support for photographic paper is produced by a method including the steps of coating one or two surfaces of a substrate sheet with a resinous melt includes a water-proof thermoplastic polymer and a pigment, by a melt-extrude-coating method, and solidifying the coating layer of the resinous melt on the substrate sheet, and wherein at least one melt-kneading procedure is applied to the resinous melt in a melt extruder having a pair of biaxial screws engaged with each other and satisfying the relationship (i)L.gtoreq.20D (I)wherein L is a length of the screws and D is a diameter of the screws, and provided with at least one pair of kneading disks located in at least a portion of the screws.