EP0662633A1 - Photographischer Papierschichtträger - Google Patents
Photographischer Papierschichtträger Download PDFInfo
- Publication number
- EP0662633A1 EP0662633A1 EP94120434A EP94120434A EP0662633A1 EP 0662633 A1 EP0662633 A1 EP 0662633A1 EP 94120434 A EP94120434 A EP 94120434A EP 94120434 A EP94120434 A EP 94120434A EP 0662633 A1 EP0662633 A1 EP 0662633A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing paper
- photographic printing
- titanium oxide
- paper support
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
- G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
Definitions
- the present invention relates to a photographic printing paper support and, more particularly, to a support which can provide an excellent resolving power when it is applied to a photographic printing paper, and that at a lower cost than conventionally used supports.
- the resin coat provided on the emulsion-coated side contains an inorganic pigment such as titanium oxide, etc., a bluing agent (including blue pigments), a brightening agent and so on (as described in U.S. Patent 3,501,298) (cf., Fig. 3 illustrated hereinafter).
- the titanium oxide used therein not only functions so as to heighten the water resistance and the light reflecting efficiency of the supports, but also can provide higher resolving power the more its content therein is increased.
- JP-B-49-30446 the term "JP-B” as used herein means an "examined Japanese patent publication"
- a laminated sheet was developed for graphic arts (JP-A-03-61038).
- Such a sheet has two or more resin layers laminated on the front side of a sheet-form support, and contains titanium oxide in the topmost resin layer alone. Further, the topmost resin layer thereof is thinner than the other lower layers.
- the laminated sheet described above has a defect that it cannot provide sufficient resolving power when it is used as photographic printing paper support.
- an object of the present invention is to provide a photographic printing paper support which has excellent production suitability and high resolving power and can be produced at a lower cost than conventional ones.
- a photographic printing paper support having waterproof resin layers on both sides of a substrate, with the waterproof resin layer on the emulsion-coated side comprising at least an upper layer containing from 5 to 25 % by weight of titanium oxide and from 0 to 0.56 % by weight of a bluing agent and a lower layer containing substantially no titanium oxide but containing from 0.05 to 0.60 % by weight of a bluing agent.
- Fig. 1 is a cross sectional view showing part of the present support for photographic printing paper.
- Fig. 2 is a cross sectional view showing part of a conventional support for photographic printing paper, wherein the waterproof resin layer on the emulsion-coated side is constituted of two layers and the lower layer of the two does not contain any bluing agent.
- Fig. 3 is a cross sectional view showing part of another conventional support for photographic printing paper, wherein the water proof resin layer on the emulsion-coated side is a single layer.
- the reference number 1 represents a substrate
- the reference numbers 2, 3 and 4 represent waterproof resin layers respectively
- the reference number 5 represents a bluing agent
- the reference number 6 represents a titanium oxide.
- the waterproof resins used for forming resin layers in the present invention can be properly chosen from resins of the kind which can undergo melt extrusion at a temperature ranging from 170 to 290°C.
- resins of such a kind it is general to use polyolefins, such as polyethylene, polypropylene, etc., and polyester resins.
- polyethylene is preferred over the others.
- polyethylene any sort of polyethylene, a high-density, low-density or linear low-density polyethylene, may be used. Additionally, these polyethylenes may be used independently or as a mixture of two or more thereof.
- the waterproof resin used in the foregoing lower resin layer provided in contact with a substrate on the emulsion-coated side be a resin having a melt flow rate in the range of 1.2 to 100 g per 10 minutes from the standpoint of securing satisfactory adhesiveness between the resin layer and the substrate. Also, it is desirable to use waterproof resins having their melt flow rates in the range of 1.2 to 100 g per 10 minutes for resin layers other than the lower resin layer on the emulsion-coated side.
- the foregoing lower resin layer may have one or more constituent layers.
- the lowest waterproof resin layer provided on the emulsion-coated side can contain a tackifier resin and/or an adhesive resin, such as an acid-modified polyolefin resin capable of hot-sealing waterproof resins, an ionomer, etc., for the purpose of improvement upon the adhesiveness to both the layer provided thereon and the substrate.
- a tackifier resin such as an acid-modified polyolefin resin capable of hot-sealing waterproof resins, an ionomer, etc.
- tackifier resin examples include resins derived from rosin, terpene resins (such as ⁇ -pinene polymer), cumarone-indene resin, petroleum hydrocarbon resins and so on.
- a tackifier resin as cited above is generally admixed with the foregoing waterproof resin in a proportion of from 0.5 to 60 % by weight.
- an adhesive resin as described above examples include an acid-modified polyolefin resin, an ionomer, an ethylene-vinyl acetate copolymer resin (EVA resin), an ethylene-ethylacrylate copolymer resin (EEA resin), an ethylene-acrylic acid copolymer resin (EAA resin) and a metal salt thereof.
- EVA resin ethylene-vinyl acetate copolymer resin
- EAA resin ethylene-ethylacrylate copolymer resin
- EAA resin ethylene-acrylic acid copolymer resin
- the proportion of such an adhesive resin to the foregoing waterproof resin admixed therewith ranges from 20 to 500 % by weight.
- the upper waterproof resin layer on the emulsion-coated side prefferably contains a bluing agent in addition to titanium oxide.
- a bluing agent in addition to titanium oxide.
- the lower waterpoof resin layer on the other hand, from 0.05 to 0.60 % by weight of bluing agent is contained, but titanium oxide is not contained in a substantial sense.
- titanium dioxide is used to advantage because it can ensure higher resolving power to the product.
- the content of titanium oxide in the upper layer be in the range of 5 to 25 % by weight, particularly preferably 10 to 20 % by weight.
- the resulting photographic printing paper cannot achieve sufficiently high resolving power; whereas when the content of titanium oxide is increased beyond 25 % by weight, not only the production cost of the support is raised but also the resulting resin layer lacks in production suitability because it tends to generate cracks and suffer die lines.
- titanium oxide is not contained in a substantial sense means that the content of titanium oxide is not higher than 3 % by weight.
- both rutile and anatase structures may be adopted.
- anatase-type titanium oxide is preferred when priority is given to the achievement of high whiteness; while rutile-type titanium oxide is preferred when priority is given to the achievement of high sharpness.
- a blend of anatase-type titanium oxide and rutile-type titanium oxide may be used, or the titanium oxide-containing layer may be subdivided into two layers, namely a layer to which anatase-type titanium oxide is added and a layer to which rutile-type titanium oxide is added.
- the average grain size of titanium oxide used be in the range of 0.1 to 0.4 ⁇ m.
- the titanium oxide has an average grain size less than 0.1 ⁇ m, it is difficult to incorporate such titanium oxide in a resin layer in a homogeneously mixed and dispersed condition; while when the titanium oxide has an average grain size greater than 0.4 ⁇ m, it not only fails to provide sufficient whiteness but also forms projections at the resin layer surface to exert a bad influence upon image quality.
- titanium oxide having such a structure and an average grain size as described above include the products commercially available under the trade names of KA-10 and KA-20 (products of Titan Kogyo Co., Ltd.), and A-220, PF-656, PF-654, PF-671, PF-715 and CR-63 (products of Ishihara Industry Co., Ltd.).
- titanium oxide products they are generally subjected to a surface treatment for the purpose of depressing their activity to inhibit the yellowing phenomenon.
- Suitable examples of an agent which can be used for such a surface treatment include an inorganic material such as hydrated aluminium oxide, hydrated silicon oxide, etc.; an organic material such as a polyhydric alcohol, a polyamine, a metal soap, an alkyl titanate, a polysiloxane, etc.; and a mixture of inorganic and organic materials chosen from those as cited above.
- Such a surface treatment agent as cited above be used in a proportion of from 0.2 to 2.0 % by weight to the titanium oxide when it is an inorganic material, while when it is an organic material it be used in a proportion of from 0.1 to 1.0 % by weight to the titanium oxide.
- the titanium oxide is kneaded into a waterproof resin with a kneading machine, such as a two-rod roll, a three-rod roll, a kneader, a Bumbury's mixer or the like.
- a metal salt of higher fatty acid, an ethyl ester of higher fatty acid, a higher fatty acid amide, a higher fatty acid or so on is further used as dispersing aid.
- the thus titanium oxide-incorporated waterproof resin is molded in the form of pellet, and used as the master batch of titanium oxide.
- the concentration of titanium oxide in the master batch pellet ranges generally from about 30 to about 75 %, particularly from 35 to 70 %, by weight from the standpoints of economy, dispersibility and so on.
- the suitable proportion thereof is generally in the range of about 0.5 to about 10 % by weight to the amount of titanium oxide used.
- the cases in which the titanium oxide concentration in the master batch pellet is less than 30 % by weight are too low in dilution ratio, and so they are bad economy.
- the foregoing concentration is increased beyond 75 % by weight, on the other hand, the dispersibility is lowered and the resulting resin layer tends to generate cracks by bending.
- Suitable examples of a bluing agent which can be used include generally known pigments, such as ultramarine, cobalt blue, cobalt phosphate oxide, quinacridone pigments and mixtures of two or more thereof.
- the grain size thereof be in the range of 0.05 to 5 ⁇ m, particularly 0.1 to 3 ⁇ m.
- a bluing agent for the upper layer of the present waterproof resin layers its content therein is desirably chosen from the range of 0 to 0.56 % by weight, preferably 0.05 to 0.4 % by weight, and particularly preferably 0.07 to 0.30 % by weight. Although sharpness is improved by increasing the content beyond 0.56 % by weight, a bluish tinge is given to the image thereby to diminish the value of the resulting material as goods.
- the bluing agent When the bluing agent is used in the lower layer of the present waterproof resin layers, it is desirable that its content therein range from 0.05 to 0.60 % by weight, preferably from 0.07 to 0.45 % by weight, and particularly preferably from 0.10 to 0.30 % by weight. When the content is below 0.05 % by weight, low-frequency CTF values are lowered, and thereby is lessened the resolution heightening effect.
- the bluing agent is kneaded into a waterproof resin with a kneading machine, such as a two-rod roll, a three-rod roll, a kneader, a Bumbury's mixer or the like.
- a kneading machine such as a two-rod roll, a three-rod roll, a kneader, a Bumbury's mixer or the like.
- the bluing agent-incorporated waterproof resin thus obtained is molded in the form of pellet, and used as the master batch of bluing agent.
- the concentration of a bluing agent in the master batch pellet range from about 1 to about 30 %.
- the titanium oxide can be kneaded together, if needed, and a dispersing aid such as a metal salt of higher fatty acid, an ethyl ester of higher fatty acid, a higher fatty acid amide, a higher fatty acid, etc. can be used for assisting the homogeneous dispersion of the bluing agent.
- the waterproof resin layers according to the present invention can contain an antioxidant.
- an antioxidant for the proportion of an antioxidant to the waterproof resin, the order of 50-1,000 ppm is desirable from the standpoint of inhibiting the resin from deteriorating without accompanied by adverse effects on photographic properties.
- the thus prepared master batch pellets, in which the titanium oxide and/or the bluing agent is incorporated, are properly diluted with a waterproof resin, and used for coating purpose.
- the foregoing pellets containing the titanium oxide and/or the bluing agent together with the waterproof resin required for dilution are fused by heating, and then spread over a traveling substrate made of natural pulp paper, synthetic paper or the like in the form of melt films according to a successive lamination method or a lamination method using a co-extruding die of feed block type, multi-manifold type, multi-slot type or so on.
- the waterproof resin layers constituting the present support can be formed.
- the present invention has no particular restriction as to the shape of the die used for co-extrusion, it is generally preferred to use a T-die or a coat hanger die.
- the waterproof resin layers provided on the front side of the support it is preferable to firstly form the resin layer containing a bluing agent on the front side of the support (on the emulsion-coated side) and then form the titanium oxide-containing waterproof resin layer as a laminate film on the foregoing resin layer by the melt extrusion from a slit die under a temperature ranging from 170 to 290°C.
- the waterproof resin cannot undergo sufficient oxidation to result in the lowering of adhesiveness between the waterproof resin layer and the substrate; while when it is above 290 °C the resin layer surface comes to have cracks and die lines, which considerably mar the appearance.
- the substrate Before it is covered with the resin, the substrate is preferably subjected to an activating treatment, such as a corona discharge treatment, a flame treatment, a glow discharge treatment, a plasma treatment or so on.
- an activating treatment such as a corona discharge treatment, a flame treatment, a glow discharge treatment, a plasma treatment or so on.
- the thickness of the upper layer be in the range of 5 to 35 ⁇ m, preferably 10 to 25 ⁇ m and particularly preferably 15 to 25 ⁇ m, and the thickness of the lower layer be in the range of 5 to 30 ⁇ m, preferably 10 to 25 ⁇ m and particularly preferably 15 to 20 ⁇ m.
- the topmost surface of the waterproof resin layer on the emulsion-coated side is subjected to a die embossing treatment of the type which can put thereon a gloss or the fine grain described in JP-A-55-26507 or can render the surface mat or silk.
- the waterproof resin layer on the back side is subjected to another type of die embossing treatment by which the surface is made dull.
- the surfaces having received such a die embossing treatment as described above can be subjected to an activating treatment such as a corona discharge treatment, a flame treatment, etc., and further can undergo the subbing treatment as described in JP-A-61-846443.
- an activating treatment such as a corona discharge treatment, a flame treatment, etc.
- the substrate used in the present invention may be any kind of paper.
- paper in general which contains natural pulp as a main component paper made of a natural pulp-synthetic fiber mixture, synthetic fiber paper containing synthetic fibers as a main component, the so-called synthetic paper which can be obtained, e.g., by processing a synthetic resin film, such as a polystyrene film, a polypropylene film, etc., so as to closely resemble to paper in appearance, and so on can be used as the substrate.
- a synthetic resin film such as a polystyrene film, a polypropylene film, etc.
- chemicals which can be added to a raw paper include alkylketene dimers, fillers such as clay, talc, calcium carbonate, fine particles of urea resin, etc., a sizing agent such as rosin, higher fatty acid salts, paraffin waxes, alkenylsuccinic acids, etc., a paper strengthening agent such as polyacrylamides, etc., and a fixing agent such as sulfate band, etc. Further, dyes, fluorescent dyes, slime controlling agent, an anti-foaming agent and so on can be added to a raw paper, if needed.
- a softening agent can be added, if desired.
- the softening agent it can be referred to, e.g., Shin-Kamikako Binran (which means "New Handbook of Paper Finishing"), pp. 554-555, Shiyaku Times Co. (1980).
- Shin-Kamikako Binran which means "New Handbook of Paper Finishing"
- pp. 554-555 Shiyaku Times Co. (1980).
- Such softening agents have a hydrophobic group containing at least 10 carbon atoms and take the form of amine or quaternary ammonium salt which enables self-fixation to cellulose.
- Such a softening agent include the reaction products of maleic anhydride copolymers with polyalkylenepolyamines, the reaction products of higher fatty acids with polyalkylenepolyamides, the reaction products of urethane alcohols with alkylating agents, and the quaternary ammonium salts of higher fatty acids.
- the reaction products of maleic anhydride copolymers with polyalkylenepolyamines and the reaction products of urethane alcohols with alkylating agents are preferred over the others.
- a raw paper can also undergo a surface-size treatment with a film-forming polymer, such as gelatin, starch, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol, modified polyvinyl alcohols, etc.
- a film-forming polymer such as gelatin, starch, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol, modified polyvinyl alcohols, etc.
- the modified polyvinyl alcohols the polyvinyl alcohols modified with carboxyl groups, those modified with silanols and the copolymers with acrylamides are examples thereof.
- the coverage of such a film-forming polymer is controlled to from 0.1 to 5.0 g/m2, preferably from 0.5 to 2.0 g/m2.
- an antistatic agent e.g., a brightening agent, a pigment, an anti-foaming agent and so on, if needed.
- the calendering treatment can be carried out either before or after the surface-size treatment. However, it is desirable that the calendering treatment be carried out after other intended treatments, or at the final stage of finishing.
- the raw paper used for the present photographic printing paper support is prepared so as to finally attain a thickness of from 50 to 250 ⁇ m by the calendering treatment as described above.
- the density of the raw paper ranges from 0.8 to 1.3 g/m3, preferably from 1.0 to 1.2 g/m3.
- the photographic printing paper support according to the present invention can be coated with various backing layers for the purposes of prevention of charging, curling or other phenomena.
- backing layers can be contained properly chosen and combined additives.
- additives include the inorganic and organic antistatic agents, the hydrophilic binders, the latexes, the hardeners, the pigments and the surfactants disclosed or recited in JP-B-52-18020, JP-B-57-9059, JP-B-57-53940, JP-B-58-56859, JP-A-59-214849 and JP-A-58-184144.
- the photographic printing paper support according to the present invention is coated with various photographic constituent layers, and serves for the various purposes, as color photographic printing paper, black-and-white photographic printing paper, printing paper for photocomposition, reversal photographic materials, negative and positive materials for silver salt diffusion transfer process, graphic arts materials and so on
- those photographic constituent layers can include an emulsion layer comprising silver chloride, silver bromide, silver chlorobromide, silver iodobromide or silver chloroiodobromide, color coupler-incorporated silver halide emulsion layers for a multilayer color photographic material, or a silver salt diffusion transfer image-receiving layer in which physical development nuclei are incorporated.
- the titanium oxide content in a photographic printing paper support can be reduced.
- the present support not only can have excellent production suitability but also can be produced at a lower price than conventional ones
- the present support is used as a support of photographic printing paper, the resulting photographic printing paper can be prevented from suffering the fuzzy image formation attributable to a printing operation. Therefore, the present support has a great advantage in that it can ensure high resolving power to photographic printing paper.
- a paper substrate 1 (See Fig. 1) having a basis weight of 170 g/m2 was surface-treated by corona discharge having an output of 1 KW, and a low density polyethylene resin (density: 0.94 g/cm3, a melt index: 3.0) was extrusion-laminated on the back side thereof at a line speed of 200 m/min under a temperature of 260°C to form a waterproof resin layer 4 having a thickness of 40 ⁇ m.
- a low density polyethylene resin density: 0.94 g/cm3, a melt index: 3.0
- the thus obtained support was coated with color emulsions to provide a photographic printing paper. Then, the photographic printing paper was subjected to printing and developing operations, thereby obtaining a photograph.
- the photograph obtained was examined for resolving power by visual observation.
- the observation result was classified into 10 grades, and the grade 5 as a standard was given to the resolving power of a conventional case (Comparative Example 5 described hereinafter), wherein a single waterproof resin layer was provided.
- the evaluation result is shown in Table 2.
- Photographic printing paper supports were prepared in the same manner as in Example 1, except that the compositions of the upper and the lower waterproof resin layers were changed to those set forth in Table 2 respectively. Additionally, the waterproof resin layer in Comparative Example 5 was not divided into two layer, but it was formed into a single layer having a thickness of 40 ⁇ m. The same color emulsions as used in Example 1 were coated on each of these supports to produce photographic printing papers. The thus produced printing papers were each subjected to the same printing and developing operations as in Example 1, and examined for resolving power by the same method as in Example 1. The results obtained are shown in Table 2. Table 2 Layer No.
- Example 1 Composition Resolving Power Low-density Polylethylene (wt%) Titanium Dioxide (wt%) Bluing Agent (wt%)
- Example 2 3 80.0 20.0 0 8 2 99.93 0 0.07
- Example 2 3 89 11 0 7 2 99.93 0 0.07
- Comparative Example 1 3 79.93 20 0.07 7 2 100 0 0
- Comparative Example 2 3 79.93 20 0.07 8 2 94 6 0
- Comparative Example 3 3 88.93 11 0.07 5 2 100 0 0
- Comparative Example 4 3 88.93 11 0.07 7 2 91 9 0
- Comparative Example 5 single layer 89.965 10 0.035 5
- Photographic printing paper supports were prepared in the same manner as in Example 1, except that the content of the bluing agent in the lower layer 2 was changed to 0.28 wt% (Example 3), 0.56 wt% (Example 4) and 0.84 wt% (Comparative Example 6), respectively.
- the same color emulsions as used in Example 1 were coated on each of these supports to produce photographic printing papers.
- the thus produced printing papers were each subjected to the same printing and developing operations as in Example 1, and examined for resolving power by the same method as in Example 1.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34606593 | 1993-12-22 | ||
JP346065/93 | 1993-12-22 | ||
JP34606593A JP3724822B2 (ja) | 1993-12-22 | 1993-12-22 | 写真印画紙用支持体 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0662633A1 true EP0662633A1 (de) | 1995-07-12 |
EP0662633B1 EP0662633B1 (de) | 2004-05-06 |
Family
ID=18380907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940120434 Expired - Lifetime EP0662633B1 (de) | 1993-12-22 | 1994-12-22 | Photographischer Papierschichtträger |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0662633B1 (de) |
JP (1) | JP3724822B2 (de) |
DE (1) | DE69433757T2 (de) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0952483A1 (de) * | 1998-04-23 | 1999-10-27 | Fuji Photo Film B.V. | Beschichtetes Trägerpapier für photographische Abzüge |
US6020116A (en) * | 1998-09-17 | 2000-02-01 | Eastman Kodak Company | Reflective display material with biaxially oriented polyolefin sheet |
EP0976545A2 (de) * | 1998-07-30 | 2000-02-02 | Fuji Photo Film Co., Ltd. | Träger für photographisches Papier und seine Herstellung |
US6030759A (en) * | 1997-12-24 | 2000-02-29 | Eastman Kodak Company | Composite photographic material with laminated biaxially oriented polyolefin sheets with improved optical performance |
US6030756A (en) * | 1998-09-17 | 2000-02-29 | Eastman Kodak Company | Day/night photographic display material with biaxially oriented polyolefin sheet |
US6063552A (en) * | 1998-09-17 | 2000-05-16 | Eastman Kodak Company | Photographic clear display materials with biaxially oriented polyolefin sheet |
US6071654A (en) * | 1998-09-17 | 2000-06-06 | Eastman Kodak Company | Nontransparent transmission display material with maintained hue angle |
US6080532A (en) * | 1998-09-17 | 2000-06-27 | Eastman Kodak Company | Clear duplitized display materials |
US6162549A (en) * | 1998-09-17 | 2000-12-19 | Eastman Kodak Company | Day/night imaging display material with biaxially oriented polyolefin sheet |
US6180304B1 (en) | 1998-09-17 | 2001-01-30 | Eastman Kodak Company | Translucent imaging paper display materials with biaxially oriented polyolefin sheet |
US6197416B1 (en) | 1998-09-17 | 2001-03-06 | Eastman Kodak Company | Transmission imaging display material with biaxially oriented polyolefin sheet |
US6200740B1 (en) | 1998-09-17 | 2001-03-13 | Eastman Kodak Company | Photographic transmission display materials with biaxially oriented polyolefin sheet |
US6261994B1 (en) | 1998-09-17 | 2001-07-17 | Eastman Kodak Company | Reflective imaging display material with biaxially oriented polyolefin sheet |
EP1142703A1 (de) * | 1998-09-30 | 2001-10-10 | Fuji Photo Film Co., Ltd. | Verbundmaterial und verfahren zur herstellung |
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GB1339045A (en) * | 1970-09-28 | 1973-11-28 | Fuji Photo Film Co Ltd | Paper support for photographic emulsion |
US3783003A (en) * | 1970-06-17 | 1974-01-01 | Fuji Photo Film Co Ltd | Process for producing a resin-coated paper as a support for a photographic paper |
GB2088747A (en) * | 1980-12-06 | 1982-06-16 | Schoeller F Gmbh Co Kg | Multilayer photographic support material |
US4645736A (en) * | 1983-01-03 | 1987-02-24 | Felix Schoeller Jr. Gmbh & Co. Kg | Waterproof photographic paper support |
JPS64542A (en) * | 1987-03-18 | 1989-01-05 | Oji Paper Co Ltd | Supporting body for photographic printing paper |
JPH04256947A (ja) * | 1991-02-12 | 1992-09-11 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
JPH04256948A (ja) * | 1991-02-12 | 1992-09-11 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
-
1993
- 1993-12-22 JP JP34606593A patent/JP3724822B2/ja not_active Expired - Fee Related
-
1994
- 1994-12-22 EP EP19940120434 patent/EP0662633B1/de not_active Expired - Lifetime
- 1994-12-22 DE DE1994633757 patent/DE69433757T2/de not_active Expired - Lifetime
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US3783003A (en) * | 1970-06-17 | 1974-01-01 | Fuji Photo Film Co Ltd | Process for producing a resin-coated paper as a support for a photographic paper |
GB1339045A (en) * | 1970-09-28 | 1973-11-28 | Fuji Photo Film Co Ltd | Paper support for photographic emulsion |
GB2088747A (en) * | 1980-12-06 | 1982-06-16 | Schoeller F Gmbh Co Kg | Multilayer photographic support material |
US4645736A (en) * | 1983-01-03 | 1987-02-24 | Felix Schoeller Jr. Gmbh & Co. Kg | Waterproof photographic paper support |
JPS64542A (en) * | 1987-03-18 | 1989-01-05 | Oji Paper Co Ltd | Supporting body for photographic printing paper |
JPH04256947A (ja) * | 1991-02-12 | 1992-09-11 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
JPH04256948A (ja) * | 1991-02-12 | 1992-09-11 | Fuji Photo Film Co Ltd | 写真印画紙用支持体 |
Non-Patent Citations (3)
Title |
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DATABASE WPI Section PQ Week 8907, Derwent World Patents Index; Class P83, AN 89-050697 * |
DATABASE WPI Section PQ Week 9243, Derwent World Patents Index; Class P83, AN 92-354030 * |
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Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6030759A (en) * | 1997-12-24 | 2000-02-29 | Eastman Kodak Company | Composite photographic material with laminated biaxially oriented polyolefin sheets with improved optical performance |
US7160675B2 (en) | 1998-04-23 | 2007-01-09 | Fuji Photo Film B.V. | Coated base paper for photographic printing paper |
US6482581B1 (en) | 1998-04-23 | 2002-11-19 | Fuji Photo Film B.V. | Coated base paper for photographic printing paper |
EP0952483A1 (de) * | 1998-04-23 | 1999-10-27 | Fuji Photo Film B.V. | Beschichtetes Trägerpapier für photographische Abzüge |
EP0976545A3 (de) * | 1998-07-30 | 2001-11-21 | Fuji Photo Film Co., Ltd. | Träger für photographisches Papier und seine Herstellung |
EP0976545A2 (de) * | 1998-07-30 | 2000-02-02 | Fuji Photo Film Co., Ltd. | Träger für photographisches Papier und seine Herstellung |
US6063552A (en) * | 1998-09-17 | 2000-05-16 | Eastman Kodak Company | Photographic clear display materials with biaxially oriented polyolefin sheet |
US6261994B1 (en) | 1998-09-17 | 2001-07-17 | Eastman Kodak Company | Reflective imaging display material with biaxially oriented polyolefin sheet |
US6162549A (en) * | 1998-09-17 | 2000-12-19 | Eastman Kodak Company | Day/night imaging display material with biaxially oriented polyolefin sheet |
US6180304B1 (en) | 1998-09-17 | 2001-01-30 | Eastman Kodak Company | Translucent imaging paper display materials with biaxially oriented polyolefin sheet |
US6197416B1 (en) | 1998-09-17 | 2001-03-06 | Eastman Kodak Company | Transmission imaging display material with biaxially oriented polyolefin sheet |
US6200740B1 (en) | 1998-09-17 | 2001-03-13 | Eastman Kodak Company | Photographic transmission display materials with biaxially oriented polyolefin sheet |
US6242142B1 (en) | 1998-09-17 | 2001-06-05 | Eastman Kodak Company | Nontransparent transmission display material with maintained hue angle |
US6080532A (en) * | 1998-09-17 | 2000-06-27 | Eastman Kodak Company | Clear duplitized display materials |
US6020116A (en) * | 1998-09-17 | 2000-02-01 | Eastman Kodak Company | Reflective display material with biaxially oriented polyolefin sheet |
US6071654A (en) * | 1998-09-17 | 2000-06-06 | Eastman Kodak Company | Nontransparent transmission display material with maintained hue angle |
US6030756A (en) * | 1998-09-17 | 2000-02-29 | Eastman Kodak Company | Day/night photographic display material with biaxially oriented polyolefin sheet |
EP1142703A4 (de) * | 1998-09-30 | 2002-03-06 | Fuji Photo Film Co Ltd | Verbundmaterial und verfahren zur herstellung |
US6589645B1 (en) | 1998-09-30 | 2003-07-08 | Fuji Photo Film Co., Ltd. | Laminated member and method for manufacturing the same |
EP1142703A1 (de) * | 1998-09-30 | 2001-10-10 | Fuji Photo Film Co., Ltd. | Verbundmaterial und verfahren zur herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE69433757D1 (de) | 2004-06-09 |
JP3724822B2 (ja) | 2005-12-07 |
EP0662633B1 (de) | 2004-05-06 |
DE69433757T2 (de) | 2004-10-07 |
JPH07181626A (ja) | 1995-07-21 |
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