EP0526795B1 - Process for the production of a photographic image - Google Patents

Process for the production of a photographic image Download PDF

Info

Publication number
EP0526795B1
EP0526795B1 EP92112415A EP92112415A EP0526795B1 EP 0526795 B1 EP0526795 B1 EP 0526795B1 EP 92112415 A EP92112415 A EP 92112415A EP 92112415 A EP92112415 A EP 92112415A EP 0526795 B1 EP0526795 B1 EP 0526795B1
Authority
EP
European Patent Office
Prior art keywords
colour
silver
silver halide
density
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92112415A
Other languages
German (de)
French (fr)
Other versions
EP0526795A1 (en
Inventor
Kaspar Wingender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0526795A1 publication Critical patent/EP0526795A1/en
Application granted granted Critical
Publication of EP0526795B1 publication Critical patent/EP0526795B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/309—Photographs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/415—Marking using chemicals
    • B42D25/42—Marking using chemicals by photographic processes
    • 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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3017—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials with intensification of the image by oxido-reduction
    • G03C7/302—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials with intensification of the image by oxido-reduction using peroxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/145—Infrared

Definitions

  • ID cards which contain machine-readable information in addition to an image of the cardholder, are becoming increasingly common.
  • the trend is towards colored portraits of the cardholder, which are created using a standard color photographic process.
  • This process starts with a silver halide color photographic material that is exposed and developed and includes a silver removal step consisting of bleaching and fixing, in which all silver and silver halide is removed, and the clear color image, generated from color couplers in the material and the oxidation product of the p- Phenylenediamine developer substance which emerges, machine-readable information, usually information which can be read by infrared light, cannot be applied in this way, since the dyes produced have only very little IR absorption and the silver, which shows sufficient IR absorption, has been removed, as is known.
  • the object of the invention was therefore to find a method for producing an ID card, in which, starting from a color photographic silver halide material, both a clear color image and an IR-readable silver image are easily generated in another part of the image.
  • This task is solved by a so-called development enhancement process, in which the development initially produces a color image which is overlaid by the silver image that is formed at the same time.
  • the reinforcement cut with H2O2 is then in the areas where color couplers have not yet been implemented is present, depending on the resulting silver, only the color image, but not the silver image, is enhanced. This differentiates between color and silver gradation. As a result, the increasing silver density is overlaid by the area of maximum color density.
  • the data of the IR-readable area are imaged with a greater intensity than the data of the colored area.
  • the areas I and II can be spatially separated from one another.
  • the photographic material used is in particular a material which contains on a support, in particular a reflective support, at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler
  • Silver halides contain at least 97 mol% of silver chloride and at most 3 mol% of AgBr and the silver halide coating, indicated as AgNO3, is more than 0.6 g / m2, in particular 0.75 to 1.5 g / m2, the layer or Layers of any color sensitivity have a total silver halide application of at least 0.12 g / m2, expressed as AgNO3.
  • the silver halide emulsions are preferably negative working.
  • the photographic material can also contain a further coupler-free silver halide layer which only produces a silver image which can be read in IR light.
  • the material can contain non-light-sensitive layers, so-called auxiliary layers.
  • auxiliary layers The number and sequence of these layers depend on the quality requirements placed on the material. Yellow, purple, and cyan couplers are the compounds commonly used in photography.
  • the light-sensitive material can further contain the following auxiliaries: antifoggants, hardeners, plasticizers, polymeric latices, UV absorbers, formalin scavengers, stains, development accelerators, whiteners, matting agents, lubricants, antistatic agents, wetting agents and similar compounds.
  • the light-sensitive material can be exposed in a known manner.
  • the following light sources can be used for the exposure; Tungsten, halogen, xenon, mercury lamps, CRT tubes, LED and FOT.
  • the color of the exposure source can be adjusted so that a color-neutral image is created.
  • An exposure device is particularly suitable in which the exposure original is measured in the form of many pixels, the measurement signals are digitized, processed, stored and used again for exposure by means of CRT.
  • the exposed and processed material can be used as such as an ID card.
  • an identification card is laminated on one or both sides with a transparent film.
  • Such a unit is particularly scratch-resistant, stable and protected against counterfeiting and modification.
  • a suitable material for such a laminate consists of a plastic or paper and a heat seal layer. At least part of the ID card produced as described must absorb IR light in a range above 750 nm or higher, preferably at 850-950 nm. Readability can be done both in transmitted light and in reflection. The prerequisite is that the sensitivity of the reader is matched to the properties of the material.
  • Infrared readable characters can be BAR or OCR code characters.
  • a color photographic recording material was produced by applying the following layers in the order given to a support made of paper coated on both sides with polyethylene.
  • the quantities given relate to 1 m2.
  • the corresponding amounts of AgNO3 are given.
  • Example 1 The material of Example 1 was processed as follows:
  • Example 1 The material of Example 1 was processed as follows:
  • Example 1 the proportion of silver density, measured as IR density, in the image areas important for a portrait up to a density of 1.5 is significantly lower in Example 1 according to the invention than in Example 2 produced without color enhancement.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Credit Cards Or The Like (AREA)

Description

ID-Karten, die neben einem Bildnis des Karteninhabers eine maschinenlesbare Information enthalten, werden zunehmend gebräuchlicher. Der Trend geht dabei zu farbigen Bildnissen des Karteninhabers, die mittels eines üblichen farbfotografischen Verfahrens erzeugt werden. Dieses Verfahren geht von einem farbfotografischen Silberhalogenidmaterial aus, das belichtet und entwickelt wird, und beinhaltet eine Silberentfernungsstufe bestehend aus Bleichen und Fixieren, in der alles Silber und Silberhalogenid entfernt wird und das klare Farbbild, erzeugt aus im Material befindlichen Farbkupplern und dem Oxidationsprodukt der p-Phenylendiaminentwicklersubstanz, hervortritt, Maschinenlesbare Informationen, üblicherweise mit Infrarotlicht lesbare Information, können so nicht aufgebracht werden, da die erzeugten Farbstoffe nur eine sehr geringe IR-Absorption aufweisen und das Silber, das ausreichende IR-Absorption zeigt, bekanntlich entfernt wurde.ID cards, which contain machine-readable information in addition to an image of the cardholder, are becoming increasingly common. The trend is towards colored portraits of the cardholder, which are created using a standard color photographic process. This process starts with a silver halide color photographic material that is exposed and developed and includes a silver removal step consisting of bleaching and fixing, in which all silver and silver halide is removed, and the clear color image, generated from color couplers in the material and the oxidation product of the p- Phenylenediamine developer substance which emerges, machine-readable information, usually information which can be read by infrared light, cannot be applied in this way, since the dyes produced have only very little IR absorption and the silver, which shows sufficient IR absorption, has been removed, as is known.

Nach EP-A-0 342 601 soll diese Schwierigkeit dadurch überwunden werden, indem man entweder trotz Bleichens der ganzen ID-Karte das Silber nur teilweise entfernt in der Hoffnung, im Datenteil werde mehr Silber erzeugt, von dem ein Teil zurückbleibe, wenn das Silber über dem Farbbild bereits ausreichend entfernt sei, oder indem man nur einen Teil der ID-Karte dem Bleichmittel aussetze und den Teil, der die IR-lesbare Information trägt, vom Bleichmittel oder seiner Wirkung freihält. Beide Verfahren sind mit soviel Unsicherheiten behaftet, daß eine praktische Nutzung nicht möglich ist, weil im ersten Fall leicht auch im Datenteil zu viel Silber entfernt wird oder durch zu geringe Silberentfernung das Farbbild trübe und unansehnlich wird, während im zweiten Fall eine klare Trennung zwischen zu bleichendem Bildteil und nicht zu bleichendem Bildteil nur unter sehr aufwendigen Vorkehrungen möglich wird.According to EP-A-0 342 601, this difficulty is to be overcome by either only partially removing the silver, despite bleaching the entire ID card, in the hope that more silver will be produced in the data part, part of which will remain if the silver is sufficiently removed above the color image, or by exposing only a part of the ID card to the bleach and keeping the part that carries the IR-readable information free from the bleach or its effects. Both methods have so much uncertainty that a practical use is not possible, because in the first case too much silver is easily removed in the data part or too little silver removal makes the color image cloudy and unsightly, while in the second case there is a clear separation between bleaching part of the picture and part of the picture which is not to be bleached is possible only with very complex precautions.

Aufgabe der Erfindung war daher, ein Verfahren zur Herstellung einer ID-Karte zu finden, bei dem ausgehend von einem farbfotografischen Silberhalogenidmaterial in einfacher Weise sowohl ein klares Farbbild als auch in einem anderen Bildteil ein IR-lesbares Silberbild erzeugt werden.The object of the invention was therefore to find a method for producing an ID card, in which, starting from a color photographic silver halide material, both a clear color image and an IR-readable silver image are easily generated in another part of the image.

Diese Aufgabe wird durch ein sogenanntes Entwicklungsverstärkungsverfahren gelöst, bei dem durch die Entwicklung zunächst ein Farbbild erzeugt wird, das durch das gleichzeitig entstehende Silberbild überlagert wird. Im Verstärkungsschnitt mit H₂O₂ wird dann in den Bereichen, in denen noch nicht umgesetzter Farbkuppler vorhanden ist, in Abhängigkeit vom entstandenen Silber nur das Farbbild, nicht aber das Silberbild verstärkt. Hierdurch differenzieren sich Farb- und Silbergradation. Dies hat zur Folge, daß die ansteigende Silberdichte von dem Bereich maximaler Farbdichte überlagert wird.This task is solved by a so-called development enhancement process, in which the development initially produces a color image which is overlaid by the silver image that is formed at the same time. In the reinforcement cut with H₂O₂ is then in the areas where color couplers have not yet been implemented is present, depending on the resulting silver, only the color image, but not the silver image, is enhanced. This differentiates between color and silver gradation. As a result, the increasing silver density is overlaid by the area of maximum color density.

Gegenstand der Erfindung ist daher ein Verfahren zur Herstellung eines fotografischen Bildes, insbesondere einer ID-Karte, unter Verwendung eines farbfotografischen Silberhalogenidmaterials auf einem reflektierenden Träger mit einem Bereich I, in dem Informationen in Form eines farbigen Bildes, und einem Bereich II, in dem mit Infrarotlicht lesbare Daten aufgezeichnet sind, durch Verarbeitung mit den Schritten

  • (a) Belichten,
  • (b) Entwickeln mit einem Farbentwickler,
  • (c) Behandeln mit H₂O₂ oder einer Verbindung, die H₂O₂ freisetzt,
  • (d) Fixieren ohne vor oder während des Fixierens zu bleichen,
  • (e) Wässern oder Stabilisieren und
  • (f) Trocknen,

wobei die Schritte (b) und (c) zu einem Schritt zusammengefaßt werden können, dadurch gekennzeichnet, daß die Schritte (a) und (b) so durchgeführt werden, daß die Silbermaximaldichte im Bereich II nach Verarbeitung wenigstens 0,35, vorzugsweise wenigstens 0,5, gemessen in Reflexion bei 850 nm, und die Silbermaximaldichte im Bereich I nach Verarbeitung in Feldern einer Neutralfarbdichte von höchstens 1,5, höchstens 0,5 und in Feldern einer Gelb-, Purpur- oder Blaugrünfarbauszugsdichte von höchstens 1,5, höchstens 0,4, gemessen in Reflexion bei 850 nm, beträgt.The invention therefore relates to a method for producing a photographic image, in particular an ID card, using a color photographic silver halide material on a reflective support with an area I in which information is in the form of a colored image and an area II in which Infrared readable data is recorded by processing with the steps
  • (a) exposure,
  • (b) developing with a color developer,
  • (c) treating with H₂O₂ or a compound that releases H₂O₂,
  • (d) fix without bleaching before or during fixation,
  • (e) watering or stabilizing and
  • (f) drying,

wherein steps (b) and (c) can be combined into one step, characterized in that steps (a) and (b) are carried out in such a way that the maximum silver density in region II after processing is at least 0.35, preferably at least 0 , 5, measured in reflection at 850 nm, and the maximum silver density in area I after processing in fields with a neutral color density of at most 1.5, at most 0.5 and in fields with a yellow, purple or teal color separation density of at most 1.5, at most 0.4, measured in reflection at 850 nm.

In einer bevorzugten Ausführungsform werden die Daten des IR-lesbaren Bereiches mit einer größeren Intensität einbelichtet als die Daten des farbigen Bereiches.In a preferred embodiment, the data of the IR-readable area are imaged with a greater intensity than the data of the colored area.

Die Bereiche I und II können räumlich voneinander abgegrenzt sein.The areas I and II can be spatially separated from one another.

Als fotografisches Material wird insbesondere ein Material verwendet, das auf einem Träger, insbesondere einem reflektierenden Träger wenigstens eine blauempfindliche, wenigstens einen Gelbkuppler enthaltende Silberhalogenidemulsionsschicht, wenigstens eine grünempfindliche, wenigstens einen Purpurkuppler enthaltende Silberhalogenidemulsionsschicht und wenigstens eine rotempfindliche, wenigstens einen Blaugrünkuppler enthaltende Silberhalogenidemulsionsschicht enthält, dessen Silberhalogenide wenigstens 97 Mol-% Silberchlorid und höchstens 3 Mol-% AgBr enthalten und der Silberhalogenidauftrag, angegeben als AgNO₃, mehr als 0,6 g/m² beträgt, insbesondere 0,75 bis 1,5 g/m² beträgt, wobei die Schicht oder Schichten jeder Farbempfindlichkeit einen Gesamtsilberhalogenidauftrag von wenigstens 0,12 g/m², angegeben als AgNO₃, aufweist.The photographic material used is in particular a material which contains on a support, in particular a reflective support, at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler Silver halides contain at least 97 mol% of silver chloride and at most 3 mol% of AgBr and the silver halide coating, indicated as AgNO₃, is more than 0.6 g / m², in particular 0.75 to 1.5 g / m², the layer or Layers of any color sensitivity have a total silver halide application of at least 0.12 g / m², expressed as AgNO₃.

Die Silberhalogenidemulsionen sind vorzugsweise negativ arbeitend.The silver halide emulsions are preferably negative working.

Außer den Silberhalogenidschichten, welche die Gelb-, Purpur- und Blaugrünkuppler enthalten, kann das fotografische Material auch eine weitere kupplerfreie Silberhalogenidschicht enthalten, die nur ein im IR-Licht lesbares Silberbild erzeugt.In addition to the silver halide layers which contain the yellow, purple and cyan couplers, the photographic material can also contain a further coupler-free silver halide layer which only produces a silver image which can be read in IR light.

Neben den lichtempfindlichen Schichten kann das Material nicht lichtempfindliche Schichten, sogenannte Hilfsschichten enthalten. Anzahl und Reihenfolge dieser Schichten richten sich nach den Qualitätsansprüchen, die an das Material gestellt werden. Gelb-, Purpur- und Blaugrünkuppler sind die in der Fotografie üblicherweise eingesetzten Verbindungen.In addition to the light-sensitive layers, the material can contain non-light-sensitive layers, so-called auxiliary layers. The number and sequence of these layers depend on the quality requirements placed on the material. Yellow, purple, and cyan couplers are the compounds commonly used in photography.

Das lichtempfindliche Material kann des weiteren folgende Hilfsmittel enthalten: Antischleiermittel, Härter, Weichmacher, polymere Latices, UV-Absorber, Formalinfänger, Beizen, Entwicklungsbeschleuniger, Weißtöner, Mattierungsmittel, Gleitmittel, Antistatika, Netzmittel und ähnliche Verbindungen. Das lichtempfindliche Material kann auf bekannte Art belichtet werden. Beispielsweise können für die Belichtung folgende Lichtquellen verwendet werden; Wolfram-, Halogen-, Xenon-, Quecksilberlampen, CRT-Röhren, LED und FOT.The light-sensitive material can further contain the following auxiliaries: antifoggants, hardeners, plasticizers, polymeric latices, UV absorbers, formalin scavengers, stains, development accelerators, whiteners, matting agents, lubricants, antistatic agents, wetting agents and similar compounds. The light-sensitive material can be exposed in a known manner. For example, the following light sources can be used for the exposure; Tungsten, halogen, xenon, mercury lamps, CRT tubes, LED and FOT.

Mit Farbfiltern kann die Farbe der Belichtungsquelle so eingestellt werden, daß ein farbneutrales Bild entsteht.With color filters, the color of the exposure source can be adjusted so that a color-neutral image is created.

Besonders geeignet ist eine Belichtungseinrichtung, bei der die Belichtungsvorlage in Form vieler Bildpunkte ausgemessen, die Meßsignale digitalisiert, bearbeitet, gespeichert und mittels CRT wieder zur Belichtung genutzt werden.An exposure device is particularly suitable in which the exposure original is measured in the form of many pixels, the measurement signals are digitized, processed, stored and used again for exposure by means of CRT.

Das belichtete und verarbeitete Material kann als solches als ID-Karte genutzt werden. Üblicherweise wird jedoch eine Ausweiskarte auf einer oder auf beiden Seiten mit einer transparenten Folie laminiert. Eine solche Einheit ist besonders kratzfest, stabil und gegen Fälschung und Veränderung geschützt.The exposed and processed material can be used as such as an ID card. Usually however, an identification card is laminated on one or both sides with a transparent film. Such a unit is particularly scratch-resistant, stable and protected against counterfeiting and modification.

Ein geeignetes Material für ein solches Laminat besteht aus einem Kunststoff oder Papier und einer Heißsiegelschicht. Wenigstens ein Teil der wie beschrieben hergestellten ID-Karte muß IR-Licht in einem Bereich über 750 nm oder höher, bevorzugt bei 850-950 nm absorbieren. Die Lesbarkeit kann sowohl im Durchlicht wie auch in der Reflexion erfolgen. Voraussetzung ist, daß die Empfindlichkeit des Lesegerätes auf die Eigenschaften des Materials abgestimmt ist.A suitable material for such a laminate consists of a plastic or paper and a heat seal layer. At least part of the ID card produced as described must absorb IR light in a range above 750 nm or higher, preferably at 850-950 nm. Readability can be done both in transmitted light and in reflection. The prerequisite is that the sensitivity of the reader is matched to the properties of the material.

Infrarotlesbare Zeichen können BAR- oder OCR-Code-Zeichen sein.Infrared readable characters can be BAR or OCR code characters.

Beispielexample

Ein farbfotografisches Aufzeichnungsmaterial wurde hergestellt, indem auf einen Schichtträger aus beidseitig mit Polyethylen beschichtetem Papier die folgenden Schichten in der angegebenen Reihenfolge aufgetragen wurden. Die Mengenangaben beziehen sich jeweils auf 1 m². Für den Silberhalogenidauftrag werden die entsprechenden Mengen AgNO₃ angegeben.A color photographic recording material was produced by applying the following layers in the order given to a support made of paper coated on both sides with polyethylene. The quantities given relate to 1 m². For the silver halide application, the corresponding amounts of AgNO₃ are given.

Schichtaufbau 1Layer structure 1

  • 1. Schicht (Substratschicht):
       0,2 g Gelatine    1st layer (substrate layer):
    0.2 g gelatin
  • 2. Schicht (blauempfindliche Schicht):
       blauempfindliche Silberhalogenidemulsion (99,5 Mol.-% Chlorid, 0,5 Mol.-% Bromid, mittlerer Korndurchmesser 0,8 »m) aus 0,4 g AgNO₃ mit
       1,04 g Gelatine
       0,60 g Gelbkuppler GB 1
       0,01 g Weißkuppler WK 1
       0,40 g Trikresylphosphat (TKP)    2nd layer (blue-sensitive layer):
    blue-sensitive silver halide emulsion (99.5 mol .-% chloride, 0.5 mol .-% bromide, average grain diameter 0.8 »m) from 0.4 g of AgNO₃ with
    1.04 g of gelatin
    0.60 g yellow coupler GB 1
    0.01 g white coupler WK 1
    0.40 g tricresyl phosphate (CPM)
  • 3. Schicht (Schutzschicht):
       1,1 g Gelatine
       0,2 g 2,5-Dioctylhydrochinon
       0,2 g Dibutylphthalat (DBP)    3rd layer (protective layer):
    1.1 g gelatin
    0.2 g 2,5-dioctyl hydroquinone
    0.2 g dibutyl phthalate (DBP)
  • 4. Schicht (grünempfindliche Schicht)
       grünsensibilisierte Silberhalogenidemulsion (100 Mol.-% Chlorid, mittlerer Korndurchmesser 0,4 »m) aus 0,38 g AgNO₃ mit
       1,05 g Gelatine
       0,40 g Purpurkuppler PP 1
       0,06 g 2,5-Dioctylhydrochinon
       0,45 g DBP
       0,40 g TKP    4th layer (green-sensitive layer)
    Green-sensitized silver halide emulsion (100 mol .-% chloride, average grain diameter 0.4 »m) from 0.38 g of AgNO₃ with
    1.05 g gelatin
    0.40 g purple coupler PP 1
    0.06 g 2,5-dioctyl hydroquinone
    0.45 g DBP
    0.40 g CPM
  • 5. Schicht (UV-Schutzschicht)
       1,30 g Gelatine
       0,60 g UV-Absorber UV 1
       0,10 g 2,5-Dioctylhydrochinon
       0,35 g TKP    5th layer (UV protective layer)
    1.30 g gelatin
    0.60 g UV absorber UV 1
    0.10 g 2,5-dioctyl hydroquinone
    0.35 g CPM
  • 6. Schicht (rotempfindliche Schicht)
       rotsensibilisierte Silberhalogenidemulsion (100 Mol.-% Chlorid, mittlerer Korndurchmesser 0,35 »m) aus 0,28 g AgNO₃ mit
       0,72 g Gelatine
       0,36 g Blaugrünkuppler BG 1
       0,36 g TKP    6th layer (red-sensitive layer)
    red-sensitized silver halide emulsion (100 mol .-% chloride, average grain diameter 0.35 »m) from 0.28 g of AgNO₃ with
    0.72 g gelatin
    0.36 g blue-green coupler BG 1
    0.36 g CPM
  • 7. Schicht (UV-Schutzschicht)
       0,35 g Gelatine
       0,15 g UV-Absorber UV 1
       0,075 g TKP    7th layer (UV protective layer)
    0.35 g gelatin
    0.15 g UV absorber UV 1
    0.075 g CPM
  • 8. Schicht (Schutzschicht)
       0,9 g Gelatine
       0,3 g Härtungsittel H 1    8th layer (protective layer)
    0.9 g gelatin
    0.3 g of curing agent H 1
Figure imgb0001
Figure imgb0001
Figure imgb0002
Figure imgb0002
Figure imgb0003
Figure imgb0003
Figure imgb0004
Figure imgb0004
Figure imgb0005
Figure imgb0005
Figure imgb0006
Figure imgb0006

Die Schichten wurden getrocknet, in einem Sensitometer durch einen Stufenkeil mit 120 Lx.s hinter Grau-, Blau-, Grün- und Rotfilter bildmäßig belichtet und wie folgt entwickelt:

Figure imgb0007
Figure imgb0008
Figure imgb0009
Figure imgb0010
 The layers were dried, exposed in a sensitometer through a step wedge with 120 Lx.s behind gray, blue, green and red filters and developed as follows:
Figure imgb0007
Figure imgb0008
Figure imgb0009
Figure imgb0010

Beispiel 2 (Vergleich) Example 2 (comparison)

Das Material von Beispiel 1 wurde wie folgt verarbeitet:

Figure imgb0011
The material of Example 1 was processed as follows:
Figure imgb0011

Beispiel 3 (Vergleich) Example 3 (comparison)

Das Material von Beispiel 1 wurde wie folgt verarbeitet:

Figure imgb0012
The material of Example 1 was processed as follows:
Figure imgb0012

Zusammensetzung des Bleichfixierbades

Figure imgb0013
Composition of the bleach-fixer
Figure imgb0013

Bei den verarbeiteten und getrockneten Proben wurden die Grauskala und der Gelb-, Purpur- und Blaugrünauszug jeweils hinter Blau-, Grün-, Rot- und Infrarotfilter (850 nm) gemessen. Die Ergebnisse werden in den Tabellen 1-3 wiedergegeben.In the processed and dried samples, the gray scale and the yellow, purple and teal extracts were measured behind blue, green, red and infrared filters (850 nm). The results are shown in Tables 1-3.

Aus den Meßergebnissen ist ersichtlich, daß der Anteil der Silberdichte, gemessen als IR-Dichte, in den für ein Portrait wichtigen Bildbereichen bis zu einer Dichte von 1,5 beim erfindungsgemäßen Beispiel 1 deutlich geringer ist als bei dem ohne Farbverstärkung hergestellten Beispiel 2.It can be seen from the measurement results that the proportion of silver density, measured as IR density, in the image areas important for a portrait up to a density of 1.5 is significantly lower in Example 1 according to the invention than in Example 2 produced without color enhancement.

Ein Vergleich der Tabellen 1 und 3 zeigt, daß die durch das Verbleiben des entwickelten Silbers verursachte Graudichte bei einem mittels Farbverstärkung entstandenen Bild sich in der Größenordnung der Nebendichte bewegt, die die jeweiligen Farbstoffe hinter den nicht komplementärfarbenen Filter gemessen ergeben. Weiter ist aus dem Vergleich der Tabellen 1 und 3 ersichtlich, daß ein auf fotochemischem Weg erzeugtes farbiges Bild, was auf traditioneller Weise gebleicht und fixiert wurde, im IR-Bereich keine auswertbare Dichte aufweist.

Figure imgb0014
Figure imgb0015
Figure imgb0016
 A comparison of Tables 1 and 3 shows that the gray density caused by the remaining silver developed in an image created by means of color enhancement is of the order of magnitude of the secondary density which the respective dyes give behind the non-complementary colored filter. Furthermore, it can be seen from the comparison of Tables 1 and 3 that a color image produced by photochemical means, which has been bleached and fixed in the traditional way, has no evaluable density in the IR range.
Figure imgb0014
Figure imgb0015
Figure imgb0016

Claims (4)

  1. Process for the production of a photographic image, in particular an ID card, using a colour photographic silver halide material on a reflective support with a zone I in which information is recorded in the form of a colour image and a zone II in which data readable by infra-red light are recorded, by processing with the stages
    (a) exposure,
    (b) development with a colour developer,
    (c) treatment with H₂O₂ or a compound releasing H₂O₂,
    (d) fixing without prior or concomitant bleaching,
    (e) rinsing or stabilising and
    (f) drying,
    wherein stages (b) and (c) may be combined into a single stage, characterised in that stages (a) and (b) are performed in such a manner that the maximum silver density in zone II after processing is at least 0.35, preferably at least 0.5 measured reflectively at 850 nm, and the maximum silver density in zone I after processing is at most 0.5 in areas having a neutral colour density of at most 1.5, and is at most 0.4 in areas having a yellow, magenta or cyan colour separation density of at most 1.5, measured reflectively at 850 nm.
  2. Process according to claim 1, characterised in that the colour photographic material contains negative-working silver halide emulsions.
  3. Process according to claim 1, characterised in that the colour photographic material contains silver halide emulsions with at least 97 mol.% AgCl and at most 3 mol.% AgBr.
  4. Process according to claim 1, characterised in that the photosensitive layers of the colour photographic material have a silver application, determined as the quantity of AgNO₃ used, of 0.6 to 1.5 g/m², wherein the layer or layers of each colour sensitivity have a total silver halide application of at least 0.12 g/m², stated as AgNO₃.
EP92112415A 1991-08-03 1992-07-21 Process for the production of a photographic image Expired - Lifetime EP0526795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4125756 1991-08-03
DE4125756A DE4125756A1 (en) 1991-08-03 1991-08-03 PROCESS FOR PREPARING A PHOTOGRAPHIC IMAGE

Publications (2)

Publication Number Publication Date
EP0526795A1 EP0526795A1 (en) 1993-02-10
EP0526795B1 true EP0526795B1 (en) 1995-05-24

Family

ID=6437634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92112415A Expired - Lifetime EP0526795B1 (en) 1991-08-03 1992-07-21 Process for the production of a photographic image

Country Status (4)

Country Link
US (1) US6033832A (en)
EP (1) EP0526795B1 (en)
JP (1) JP2865156B2 (en)
DE (2) DE4125756A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211460A1 (en) * 1992-04-06 1993-10-07 Agfa Gevaert Ag Method for producing a photographic image
US6264296B1 (en) * 1997-05-06 2001-07-24 Fargo Electronics, Inc. Ink jet identification card printer with lamination station
DE19801589C2 (en) * 1998-01-17 2001-02-01 Bundesdruckerei Gmbh Process for the tamper-proof production of value and security documents
US7339690B2 (en) * 1999-07-14 2008-03-04 Fargo Electronics, Inc. Identification card printer with client/server
US6593042B1 (en) * 2001-12-21 2003-07-15 Eastman Kodak Company Expansion of color gamut for silver halide media
US7430762B2 (en) * 2002-03-01 2008-09-30 Fargo Electronics, Inc. Identification card manufacturing security
US7290146B2 (en) * 2004-05-03 2007-10-30 Fargo Electronics, Inc. Managed credential issuance
US7620815B2 (en) * 2003-02-21 2009-11-17 Fargo Electronics, Inc. Credential production using a secured consumable supply
EP1668587A2 (en) * 2003-09-11 2006-06-14 Fargo Electronics, Inc. Identification card manufacturing system supply ordering and diagnostic report
US8099187B2 (en) 2005-08-18 2012-01-17 Hid Global Corporation Securely processing and tracking consumable supplies and consumable material
US20070043684A1 (en) * 2005-08-18 2007-02-22 Fargo Electronics, Inc. Central Management of a Credential Production System

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243295A (en) * 1963-08-19 1966-03-29 Eastman Kodak Co Process for developing color film with sound record
US3819372A (en) * 1972-06-13 1974-06-25 Minnesota Mining & Mfg Film element and method for production of spatially distinct dye and silver photographic images
US4113490A (en) * 1974-07-12 1978-09-12 Konishiroku Photo Industry Co., Ltd. Method for processing light-sensitive silver halide photographic materials
JPS5170644A (en) * 1974-12-16 1976-06-18 Konishiroku Photo Ind Gaishikikaraashishinkankozairyo
JPS5199522A (en) * 1975-02-28 1976-09-02 Fuji Photo Film Co Ltd Shikisogazokeiseiho
JPS51146827A (en) * 1975-06-12 1976-12-16 Fuji Photo Film Co Ltd Multi layer color sensitive material
US4200466A (en) * 1975-09-30 1980-04-29 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide photographic materials
JPS5251941A (en) * 1975-10-24 1977-04-26 Konishiroku Photo Ind Co Ltd Processing of silver halide photographic light sensitive material
US4216285A (en) * 1978-06-26 1980-08-05 Miller Harris R Monobath processing of color film, including optical sound
JPS5818629A (en) * 1981-07-28 1983-02-03 Fuji Photo Film Co Ltd Image forming method
JPS5965843A (en) * 1982-10-07 1984-04-14 Fuji Photo Film Co Ltd Formation of color image
GB8609137D0 (en) * 1986-04-15 1986-05-21 Minnesota Mining & Mfg Imaging system
JPS6444938A (en) * 1987-08-13 1989-02-17 Fuji Photo Film Co Ltd Method for forming amplification of color image
EP0342601A3 (en) * 1988-05-16 1990-04-04 Konica Corporation Id card legible with ir light
GB8909579D0 (en) * 1989-04-26 1989-06-14 Kodak Ltd Method for adding components to photographic processing solutions
DE4039022A1 (en) * 1990-12-07 1992-06-11 Agfa Gevaert Ag COLOR PHOTOGRAPHIC RECORDING MATERIAL

Also Published As

Publication number Publication date
JP2865156B2 (en) 1999-03-08
US6033832A (en) 2000-03-07
DE59202313D1 (en) 1995-06-29
DE4125756A1 (en) 1993-02-04
JPH05216192A (en) 1993-08-27
EP0526795A1 (en) 1993-02-10

Similar Documents

Publication Publication Date Title
DE1958709C2 (en) Multilayer color photographic material
EP0526795B1 (en) Process for the production of a photographic image
DE3850221T2 (en) Photographic elements containing a bleach accelerator precursor.
DE3885201T2 (en) Color photographic element.
EP0430000B1 (en) Bleach bath
EP0045427B1 (en) Light-sensitive photographic recording meterial and its use in producing photographic images
EP0481251A1 (en) Bleach-fix method
DE2218189A1 (en) Bleaching processes for photographically processed silver and bleaching baths suitable for carrying out this process
DE68920666T2 (en) Photographic material with an increased exposure width.
DE19613992A1 (en) Silver halide colour photographic materials
DE69320531T2 (en) Color photographic element that leads to improved dye stability
DE3939756A1 (en) Bleach baths for processing silver halide photographic materials - contg. ferric iron complex with biodegradable nitrilo mono:acetic acid di:carboxylic acid complex former
DE2556689A1 (en) LIGHT SENSITIVE COLOR PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL
EP0468325B1 (en) Bleach bath
DE2036918B2 (en) A method of producing a color photographic image by the silver dye bleaching process
EP0405237B1 (en) Photographic processing method
DE19548414A1 (en) Reproducible photographic processing useful e.g. in identity card production
DE19511316A1 (en) Color photographic silver halide material
DE19548412A1 (en) Reproducible photographic processing by two-bath development enhancement
DE19548420A1 (en) Reproducible photographic processing by two-bath development enhancement
DE69321508T2 (en) Coupler mixtures in color photographic materials
EP0652476B1 (en) Bleaching agent
DE19548413A1 (en) Reproducible photographic processing by two-bath development enhancement
DE19616497C2 (en) Color photographic silver halide material
DE19548454A1 (en) Reproducible photographic processing using two bath development

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19930511

17Q First examination report despatched

Effective date: 19941115

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 59202313

Country of ref document: DE

Date of ref document: 19950629

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950616

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000710

Year of fee payment: 9

Ref country code: NL

Payment date: 20000710

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20000720

REG Reference to a national code

Ref country code: FR

Ref legal event code: D6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040709

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070129

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070721

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110926

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59202313

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59202313

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120724