EP1061415A1 - Black-and-white developer - Google Patents

Black-and-white developer Download PDF

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Publication number
EP1061415A1
EP1061415A1 EP00202104A EP00202104A EP1061415A1 EP 1061415 A1 EP1061415 A1 EP 1061415A1 EP 00202104 A EP00202104 A EP 00202104A EP 00202104 A EP00202104 A EP 00202104A EP 1061415 A1 EP1061415 A1 EP 1061415A1
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EP
European Patent Office
Prior art keywords
alkyl
group
black
hydrogen
developer
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.)
Withdrawn
Application number
EP00202104A
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German (de)
French (fr)
Inventor
Nikolaus Agfa-Gevaert N.V. Kirsten
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 NV
Original Assignee
Agfa Gevaert NV
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
Priority claimed from DE19939392A external-priority patent/DE19939392A1/en
Application filed by Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Publication of EP1061415A1 publication Critical patent/EP1061415A1/en
Withdrawn legal-status Critical Current

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    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C2005/3007—Ascorbic acid

Definitions

  • the invention relates to a black and white developer for silver halide materials, which produces excellent development results, a blue-black image tone generated and can do without hydroquinone.
  • the developer is said to be both for black and white reversal film and for black and white paper be suitable.
  • Hydroquinone is undesirable for health and ecological reasons.
  • R 2 , R 3 , R 5 and R 6 are preferably hydrogen, R 1 is hydrogen or optionally substituted alkyl and R 4 is hydrogen, CH 3 or NH 2 .
  • a liter of ready-to-use developer preferably contains 2 to 20 g of E-1, 0.5 to 5 g E-2 and 5 to 200 mg ST-1.
  • the developer can also use conventional components such as solubilizers, anti-limescale agents, Contain antioxidants, pH buffers, pAg buffers and the like.
  • the developer is preferably essentially hydroquinone free.
  • Substantially hydroquinone-free means that the developer of the invention contains less than 10% of the previously used amount. Preferably, the Developer according to the invention completely hydroquinone-free.
  • a black and white reversal film e.g. SCALA from Agfa-Gevaert AG
  • SCALA black-white multi-contrast paper polyethylene-coated paper as a carrier
  • MCP black-white multi-contrast paper processed on barite carrier
  • a high positive value corresponded to the desired blue-black image tone.
  • Basic developer recipe in aqueous solution: ingredient Amount of substance function Diethylene glycol 10 ml / l Solution broker EDTA-Na 4 2 g / l Limescale protection Developer substance (s) 2-20 g / l Potassium sulfite 40 g / l Protection against oxidation sodium 20 g / l pH buffer KBr 2 g / l pAg buffer Stabilizer (s) 0-200 mg / l Fog stabilizer / image tone control KOH solution (45% by weight) 0-2 ml / l Adjustment of pH 10.70

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Black-and-white developer for silver halide materials contains a developer substance combination of (a) an (iso)ascorbic salt (I) and (b) a p-aminophenol (II), together with 1-phenyl-5-mercaptotetrazole (III) as stabilizer. Black-and-white developer for silver halide materials contains a developer substance combination of (a) an (iso)ascorbic salt (I) and (b) a p-aminophenol of formula (II), together with 1-phenyl-5-mercaptotetrazole (III) as stabilizer; R1-6 = hydrogen (H), alkyl, (substituted) alkyl, (substituted) acyloxy or a group of the formula (X)p-A-(sol);;or NR1R2 = a 5-6-membered saturated ring; p = 0 or 1; X = oxygen (-O-), sulfur (-S-) or imino (-NR7-); R7 = H, alkyl or A-(Sol); A = a single bond, alkylene, phenylene, alkylene-phenylene or phenylene-alkylene group of the formulae (IIa) q = 0-5; y = 1-3; (Sol) = a solubilizing group selected from carboxyl (CO2H), sulfo (SO3H), alkyl- or aryl-sulfonylamino (NHSO2R8), aminosulfonyl (SO2NHR8), polyhydroxyalkyl or an acyl-or cyano-sulfomethyl group of the formulae (IIb); R8 = alkyl or aryl; R9 = hydroxyl (OH), alkyl or aryl; R10 = H, alkyl or aryl.

Description

Die Erfindung betrifft einen Schwarz-Weiß-Entwickler für Silberhalogenidmaterialien, der ausgezeichnete Entwicklungsergebnisse erbringt, einen blauschwarzen Bildton erzeugt und auf Hydrochinon verzichten kann.The invention relates to a black and white developer for silver halide materials, which produces excellent development results, a blue-black image tone generated and can do without hydroquinone.

Der Entwickler soll sowohl für Schwarz-Weiß-Umkehrfilm als auch für Schwarz-Weiß-Papier geeignet sein.The developer is said to be both for black and white reversal film and for black and white paper be suitable.

Bei der Entwicklung von Schwarz-Weiß-Materialien werden in der Regel Entwickler verwendet, die als Entwicklungssubstanzen Gemische von Hydrochinon/Phenidon oder Hydrochinon/Metol enthalten.When developing black and white materials, they usually become developers used as developing substances mixtures of hydroquinone / phenidone or contain hydroquinone / metol.

Hydrochinon ist aber aus gesundheitlichen und ökologischen Gründen unerwünscht.Hydroquinone is undesirable for health and ecological reasons.

Aufgabe der Erfindung war daher die Bereitstellung eines Entwicklers, der frei von Hydrochinon ist, ausreichende Entwicklungsaktivität besitzt (= hohe Maximaldichte), einen geringen Entwicklungsschleier (= geringe Minimaldichte) und einen blauschwarzen Bildton erzeugt.The object of the invention was therefore to provide a developer who is free of Is hydroquinone, has sufficient development activity (= high maximum density), a low development veil (= low minimum density) and one blue-black image tone.

Aus zahlreichen Entwickler/Stabilisator-Kombinationen wurde überraschenderweise gefunden, daß nur die Kombination aus (a) einem Salz der Ascorbinsäure oder Isoascorbinsäure, insbesondere Natriumisoascorbat (E-1) und (b) einer Verbindung der Formel (E-2)

Figure 00010001
worin

R1 bis R6
unabhängig voneinander Wasserstoff, eine Alkylgruppe, eine substituierte oder nicht-substituierte Alkoxygruppe oder eine substituierte oder nicht-substituierte Aryloxygruppe oder eine Gruppe der folgenden Formel ist: (X)p-A-(Sol) oder R1 und R2 miteinander zu einem 5- oder 6-gliedrigen, gesättigten Ring verknüpft sind,
worin
p
0 oder 1,
X
-O-, -S-, oder -NR7-
R7
Wasserstoff, ein Alkylrest oder A-(Sol),
A
Figure 00020001
q
eine ganze Zahl von 0 bis 5 und
y
eine ganze Zahl von 1 bis 3,
(Sol)
eine löslichmachende Gruppe, ausgewählt aus der Gruppe bestehend aus:
CO2H, SO3H, NHSO2R8, SO2NH2, SO2NHR8, Polyhydroxyalkyl,
Figure 00030001
R8
eine Alkyl- oder Arylgruppe,
R9
OH, eine Alkyl- oder Arylgruppe und
R10
Wasserstoff, eine Alkyl- oder Arylgruppe
bedeuten,
zusammen mit 1-Phenyl-5-mercaptotetrazol (ST-1) das gewünschte Ergebnis erbringt. Der Entwickler hat insbesondere einen pH-Wert von 9 bis 12.It has surprisingly been found from numerous developer / stabilizer combinations that only the combination of (a) a salt of ascorbic acid or isoascorbic acid, in particular sodium isoascorbate (E-1) and (b) a compound of the formula (E-2)
Figure 00010001
wherein
R 1 to R 6
is independently hydrogen, an alkyl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted aryloxy group or a group of the following formula: (X) p -A- (sol) or R 1 and R 2 are linked together to form a 5- or 6-membered, saturated ring,
wherein
p
0 or 1,
X
-O-, -S-, or -NR 7 -
R 7
Hydrogen, an alkyl radical or A- (sol),
A
Figure 00020001
q
an integer from 0 to 5 and
y
an integer from 1 to 3,
(Sol)
a solubilizing group selected from the group consisting of:
CO 2 H, SO 3 H, NHSO 2 R 8 , SO 2 NH 2 , SO 2 NHR 8 , polyhydroxyalkyl,
Figure 00030001
R 8
an alkyl or aryl group,
R 9
OH, an alkyl or aryl group and
R 10
Hydrogen, an alkyl or aryl group
mean,
together with 1-phenyl-5-mercaptotetrazole (ST-1) gives the desired result. In particular, the developer has a pH of 9 to 12.

Vorzugsweise sind R2, R3, R5 und R6 Wasserstoff, R1 Wasserstoff oder gegebenenfalls substituiertes Alkyl und R4 Wasserstoff, CH3 oder NH2.R 2 , R 3 , R 5 and R 6 are preferably hydrogen, R 1 is hydrogen or optionally substituted alkyl and R 4 is hydrogen, CH 3 or NH 2 .

Vorzugsweise enthält ein Liter gebrauchsfertiger Entwickler 2 bis 20 g E-1, 0,5 bis 5 g E-2 und 5 bis 200 mg ST-1.A liter of ready-to-use developer preferably contains 2 to 20 g of E-1, 0.5 to 5 g E-2 and 5 to 200 mg ST-1.

Beispiele für geeignete Verbindungen der Formel E-2 sind

Figure 00030002
Figure 00040001
sowie am Stickstoff di-substituierte Verbindungen:
Figure 00050001
Figure 00050002
Examples of suitable compounds of the formula E-2 are
Figure 00030002
Figure 00040001
and compounds substituted on nitrogen:
Figure 00050001
Figure 00050002

Der Entwickler kann weiterhin übliche Bestandteile wie Lösungsvermittler, Kalkschutzmittel, Oxidationsschutzmittel, pH-Puffer, pAg-Puffer und ähnliches enthalten.The developer can also use conventional components such as solubilizers, anti-limescale agents, Contain antioxidants, pH buffers, pAg buffers and the like.

Der Entwickler ist vorzugsweise im wesentlichen hydrochinonfrei.The developer is preferably essentially hydroquinone free.

"Im wesentlichen hydrochinonfrei" bedeutet, daß der erfindungsgemäße Entwickler weniger als 10 % der bisher gebräuchlichen Menge enthält. Vorzugsweise ist der erfindungsgemäße Entwickler vollkommen hydrochinonfrei."Substantially hydroquinone-free" means that the developer of the invention contains less than 10% of the previously used amount. Preferably, the Developer according to the invention completely hydroquinone-free.

In den nachfolgenden Beispielen wurden ein Schwarz-Weiß-Umkehrfilm (SWU), z.B. SCALA der Fa. Agfa-Gevaert AG, ein Schwa-Weiß-Multikontrastpapier auf polyethylenbeschichtetem Papier als Träger (MCP), und ein Schwarz-Weiß-Multikontrastpapier auf Barytträger (MCC) verarbeitet.In the examples below, a black and white reversal film (SWU), e.g. SCALA from Agfa-Gevaert AG, a black-white multi-contrast paper polyethylene-coated paper as a carrier (MCP), and a black and white multi-contrast paper processed on barite carrier (MCC).

Die Proben wurden mit einem Graustufenkeil belichtet, in den verschiedenen Entwicklern entwickelt, fixiert, gewässert und getrocknet. In der anschließenden sensitometrischen Auswertung wurden die Parameter Minimaldichte, Maximaldichte sowie der Bildton bei Dichte 1,0 ermittelt. Die entwickelten Silberdichten wurden densitometrisch bestimmt. Der Bildton variiert hauptsächlich auf der Blau-Gelb-Achse des Farbsechsecks. Daher wird in der Tabelle der Versuchsvarianten und Ergebnisse die Abweichung zum Unbuntpunkt auf der Blau-Gelb-Achse angegeben (z.B. ▵ = +4 bedeutet → Bildtonabstand von 0,04 Dichteeinheiten vom Unbuntpunkt nach Blau).The samples were exposed with a grayscale wedge in the different developers developed, fixed, watered and dried. In the subsequent sensitometric Evaluation were the parameters minimum density, maximum density as well the image tone is determined at density 1.0. The developed silver densities became densitometric certainly. The image tone varies mainly on the blue-yellow axis of the Color hexagons. Therefore, in the table of test variants and results Deviation from the achromatic point indicated on the blue-yellow axis (e.g. ▵ = +4 means → image pitch of 0.04 density units from the achromatic point to blue).

Ein hoher positiver Wert entsprach dem gewünschten blauschwarzen Bildton.A high positive value corresponded to the desired blue-black image tone.

Als Entwicklerlösung fand folgende Grundrezeptur Anwendung (Abweichungen werden gesondert vermerkt). Entwickler-Grundrezeptur (in wässriger Lösung): Inhaltsstoff Stoffmenge Funktion Diethylenglycol 10 ml/l Lösungsvermittler EDTA-Na4 2 g/l Kalkschutz Entwicklersubstanz(en) 2-20 g/l Kaliumsulfit 40 g/l Oxidationsschutz Natriumcarbonat 20 g/l pH-Puffer KBr 2 g/l pAg-Puffer Stabilisator(en) 0-200 mg/l Schleierstabilisator/Bildtonbeeinflussung KOH-Lsg (45 Gew.-%) 0-2 ml/l Einstellung von pH 10,70 The following basic recipe was used as the developer solution (deviations are noted separately). Basic developer recipe (in aqueous solution): ingredient Amount of substance function Diethylene glycol 10 ml / l Solution broker EDTA-Na 4 2 g / l Limescale protection Developer substance (s) 2-20 g / l Potassium sulfite 40 g / l Protection against oxidation sodium 20 g / l pH buffer KBr 2 g / l pAg buffer Stabilizer (s) 0-200 mg / l Fog stabilizer / image tone control KOH solution (45% by weight) 0-2 ml / l Adjustment of pH 10.70

Beispiel 1 - Proben 1 bis 26Example 1 - Samples 1 through 26

Figure 00070001
Figure 00080001
Figure 00070001
Figure 00080001

Es ist zu erkennen, daß nur die erfindungsgemäßen Versuche bei sehr guten sensitometrischen Ergebnissen den gewünschten blauschwarzen Bildton ergeben. It can be seen that only the experiments according to the invention with very good sensitometric Results give the desired blue-black image tone.

Beispiel 2 - Proben 27 bis 30Example 2 - Samples 27 to 30

Entwicklung von MCP und MCC, 2 min Entwicklungszeit bei 22°C.Development of MCP and MCC, 2 min development time at 22 ° C. VersuchsvarianteExperimental variant ErgebnisseResults Nr.No. EntwicklersubstanzDeveloper substance Stabilisatorstabilizer Dmin D min Dmax D max ▵Bildto nIldImage n Bemerkungcomment 2727 10 g/l Hydrochinon10 g / l hydroquinone 0,04 g/l Benzotriazol0.04 g / l benzotriazole 0,130.13 2,212.21 -3-3 MCPMCP 0,4 g/l Phenidon0.4 g / l phenidone 0,02 g/l ST-10.02 g / l ST-1 2828 10 g/l E-110 g / l E-1 0,05 g/l ST-10.05 g / l ST-1 0,120.12 2,182.18 +5+5 MCP, erfindungsgemäßMCP, according to the invention 2 g/l Metol2 g / l metol 2929 10 g/l Hydrochinon10 g / l hydroquinone 0,4 g/l Benzotriazol0.4 g / l benzotriazole 0,170.17 2,332.33 -4-4 MCCMCC 0,4 g/l Phenidon0.4 g / l phenidone 0,2 g/l ST-0.2 g / l ST- 3030th 10 g/l E-110 g / l E-1 0,05 g/l ST-10.05 g / l ST-1 0,170.17 2,282.28 +5+5 MCC, erfindungsgemäßMCC, according to the invention 2 g/l Metol2 g / l metol 3131 10 g/l E-110 g / l E-1 0,10 g/l ST-10.10 g / l ST-1 0,120.12 1,901.90 +4+4 MCPMCP 2 g/l Glycin2 g / l glycine 3232 10 g/l E-110 g / l E-1 0,05 g/l ST-10.05 g / l ST-1 0,130.13 2,162.16 +3+3 MCP erfindungsgemäßMCP according to the invention 4 g/l Glycin4 g / l glycine 3333 10 g/l E-110 g / l E-1 0,10 g/l ST-10.10 g / l ST-1 0,120.12 2,102.10 +5+5 MCP erfindungsgemäßMCP according to the invention 4 g/l p-Aminophenol4 g / l p-aminophenol 3434 10 g/l E-110 g / l E-1 0,05 g/l ST-10.05 g / l ST-1 0,120.12 2,182.18 +4+4 MCP erfindungsgemäßMCP according to the invention 4 g/l p-Aminophenol4 g / l p-aminophenol

In den Versuchen zeigt sich, daß mit dem erfindungsgemäßen Entwickler der gewünschte blauschwarze Bildton erzielt wird. Gleichzeitig werden die gewünschten geringen Minimaldichten und hohen Maximaldichten erreicht.The experiments show that the developer desired according to the invention blue-black image tone is achieved. At the same time, the ones you want low minimum densities and high maximum densities.

Claims (4)

Schwarz-Weiß-Entwickler für Silberhalogenidmaterialien, dadurch gekennzeichnet, daß er als Entwicklersubstanz die Kombination aus (a) einem Salz der Ascorbinsäure oder Isoascorbinsäure und (b) einer Verbindung der Formel (E-2)
Figure 00100001
worin
R1 bis R6
unabhängig voneinander Wasserstoff, eine Alkylgruppe, eine substituierte oder nicht-substituierte Alkoxygruppe oder eine substituierte oder nicht-substituierte Axyloxygruppe oder eine Gruppe der folgenden Formel ist: (X)p-A-(Sol) oder R1 und R2 miteinander zu einem 5- oder 6-gliedrigen, gesättigten Ring verknüpft sind,
worin
p
0 oder 1,
X
-O-, -S-, oder -NR7-
R7
Wasserstoff, ein Alkylrest oder A-(Sol),
A
Figure 00110001
q
eine ganze Zahl von 0 bis 5 und
y
eine ganze Zahl von 1 bis 3,
(Sol)
eine löslichmachende Gruppe, ausgewählt aus der Gruppe bestehend aus:
CO2H, SO3H, NHSO2R8, SO2NH2, SO2NHR8, Polyhydroxyalkyl,
Figure 00110002
worin
R8
eine Alkyl- oder Arylgruppe,
R9
OH, eine Alkyl- oder Arylgruppe und
R10
Wasserstoff, eine Alkyl- oder Arylgruppe
bedeuten,
sowie als Stabilisator 1-Phenyl-5-mercaptotetrazol (ST-1) enthält.Black and white developer for silver halide materials, characterized in that it contains as the developer substance the combination of (a) a salt of ascorbic acid or isoascorbic acid and (b) a compound of the formula (E-2)
Figure 00100001
wherein
R 1 to R 6
is independently hydrogen, an alkyl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted axyloxy group or a group of the following formula: (X) p -A- (sol) or R 1 and R 2 are linked together to form a 5- or 6-membered, saturated ring,
wherein
p
0 or 1,
X
-O-, -S-, or -NR 7 -
R 7
Hydrogen, an alkyl radical or A- (sol),
A
Figure 00110001
q
an integer from 0 to 5 and
y
an integer from 1 to 3,
(Sol)
a solubilizing group selected from the group consisting of:
CO 2 H, SO 3 H, NHSO 2 R 8 , SO 2 NH 2 , SO 2 NHR 8 , polyhydroxyalkyl,
Figure 00110002
wherein
R 8
an alkyl or aryl group,
R 9
OH, an alkyl or aryl group and
R 10
Hydrogen, an alkyl or aryl group
mean,
and contains 1-phenyl-5-mercaptotetrazole (ST-1) as stabilizer. Schwarz-Weiß-Entwickler nach Anspruch 1, dadurch gekennzeichnet, daß (a) in einer Menge von 2 bis 20 g/l, (b) in einer Menge von 0,5 bis 5 g/l und ST-1 in einer Menge von 5 bis 200 mg/l gebrauchsfertigem Entwickler enthalten sind.Black and white developer according to claim 1, characterized in that (a) in an amount of 2 to 20 g / l, (b) in an amount of 0.5 to 5 g / l and ST-1 contained in an amount of 5 to 200 mg / l ready-to-use developer are. Schwarz-Weiß-Entwickler nach Anspruch 1, dadurch gekennzeichnet, daß er einen pH-Wert im Bereich von 9 bis 12 aufweist.Black and white developer according to claim 1, characterized in that it has a pH in the range of 9 to 12. Schwarz-Weiß-Entwickler nach Anspruch 1, dadurch gekennzeichnet, daß
R1
Wasserstoff oder gegebenenfalls substituiertes Alkyl,
R2, R3, R5 und R6
Wasserstoff und
R4,
Wasserstoff, CH3 oder NH2 bedeuten.
Black and white developer according to claim 1, characterized in that
R 1
Hydrogen or optionally substituted alkyl,
R 2 , R 3 , R 5 and R 6
Hydrogen and
R 4 ,
Is hydrogen, CH 3 or NH 2 .
EP00202104A 1999-06-19 2000-06-14 Black-and-white developer Withdrawn EP1061415A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19928157 1999-06-19
DE19928157 1999-06-19
DE19939392 1999-08-19
DE19939392A DE19939392A1 (en) 1999-06-19 1999-08-19 Black and white developer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591133A (en) * 2012-03-03 2012-07-18 合肥通用无损检测技术有限责任公司 Developing solution and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565459A2 (en) * 1992-04-10 1993-10-13 Eastman Kodak Company Novel photographic developing solution and use thereof in the high contrast development of nucleated photographic elements
US5648205A (en) * 1994-10-13 1997-07-15 Fuji Photo Film Co., Ltd. Processing method for silver halide photographic material
JPH09211767A (en) * 1996-02-01 1997-08-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
JPH09211768A (en) * 1996-02-01 1997-08-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
JPH09258359A (en) * 1996-01-19 1997-10-03 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
US5858610A (en) * 1996-04-17 1999-01-12 Fuji Photo Film Co., Ltd. Method of developing a hydrazine-containing light-sensitive material to form an image
US5888708A (en) * 1997-01-28 1999-03-30 Fuji Photo Film Co., Ltd. Development processing method
US6017674A (en) * 1996-01-19 2000-01-25 Fuji Photo Film Co., Ltd. Silver halide photographic material and processing process thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565459A2 (en) * 1992-04-10 1993-10-13 Eastman Kodak Company Novel photographic developing solution and use thereof in the high contrast development of nucleated photographic elements
US5648205A (en) * 1994-10-13 1997-07-15 Fuji Photo Film Co., Ltd. Processing method for silver halide photographic material
JPH09258359A (en) * 1996-01-19 1997-10-03 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
US6017674A (en) * 1996-01-19 2000-01-25 Fuji Photo Film Co., Ltd. Silver halide photographic material and processing process thereof
JPH09211767A (en) * 1996-02-01 1997-08-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
JPH09211768A (en) * 1996-02-01 1997-08-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and its processing method
US5858610A (en) * 1996-04-17 1999-01-12 Fuji Photo Film Co., Ltd. Method of developing a hydrazine-containing light-sensitive material to form an image
US5888708A (en) * 1997-01-28 1999-03-30 Fuji Photo Film Co., Ltd. Development processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591133A (en) * 2012-03-03 2012-07-18 合肥通用无损检测技术有限责任公司 Developing solution and preparation method thereof

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