CN110161798A - A kind of colour bleach-fixing liquid of recyclable regenerative - Google Patents
A kind of colour bleach-fixing liquid of recyclable regenerative Download PDFInfo
- Publication number
- CN110161798A CN110161798A CN201711414766.4A CN201711414766A CN110161798A CN 110161798 A CN110161798 A CN 110161798A CN 201711414766 A CN201711414766 A CN 201711414766A CN 110161798 A CN110161798 A CN 110161798A
- Authority
- CN
- China
- Prior art keywords
- colour
- fixing
- bleach
- liquid
- concentrate
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 17
- 239000012141 concentrate Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000007844 bleaching agent Substances 0.000 claims abstract description 8
- 239000003223 protective agent Substances 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical group [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 claims description 6
- 238000004061 bleaching Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- 239000013522 chelant Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical group [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 13
- 239000002699 waste material Substances 0.000 abstract description 8
- LMSDCGXQALIMLM-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;iron Chemical compound [Fe].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O LMSDCGXQALIMLM-UHFFFAOYSA-N 0.000 abstract description 7
- 230000008929 regeneration Effects 0.000 abstract description 6
- 238000011069 regeneration method Methods 0.000 abstract description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 229910001448 ferrous ion Inorganic materials 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract description 3
- 229910001447 ferric ion Inorganic materials 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- 239000000975 dye Substances 0.000 description 7
- SDLBJIZEEMKQKY-UHFFFAOYSA-M silver chlorate Chemical compound [Ag+].[O-]Cl(=O)=O SDLBJIZEEMKQKY-UHFFFAOYSA-M 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- -1 imines ion Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- BDOQCAOAGXTEBZ-UHFFFAOYSA-N OC([Fe])=O Chemical compound OC([Fe])=O BDOQCAOAGXTEBZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009719 regenerative response Effects 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003419 tautomerization reaction Methods 0.000 description 1
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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
- G03C5/44—Bleaching; Bleach-fixing
-
- 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
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering 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
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
- G03C2007/425—Bleach-fixing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
The invention discloses a kind of colour bleach-fixing liquids of recyclable regenerative; it is made of A, B and C three parts concentrate; the PH of part A concentrate is between 5~6; include water, solvent, fixer and fixing protective agent; the PH of part B concentrate is between 5~6; comprising water, bleaching agent and silver-colored promotor is floated, the PH of C portion concentrate includes water, antioxidant and acid between 4~5；A, B and C three parts are added sequentially to be diluted again in water and make up a prescription.This novel bleach-fixing liquid has the advantages that float the performance that silver-colored ability is strong and inoxidizability is strong, suitable for extensive general RA-4 colour paper high temperature rapid processing technique；The bleach-fixing liquid is converted to ferric ion using the ferrous ion of Fe EDTA in flushing process, function the other components in old liquid again, it avoids drift to determine the discharge of waste liquid and lead to the pollution to environment, various effective ingredients in medical fluid is made to obtain regeneration.
Description
Technical field
The present invention relates to photosensitive material post-processing processing technique field, the colour bleach-fixings of specifically a kind of recyclable regenerative
Liquid.
Background technique
Autochromy system is that the photosensitive material containing silver chlorate colour coupler is colored by colour development generation by exposure
Image.Color developer makes the silver chlorate of exposure be converted into metallic silver.Its oxidation product is generated with Huang, product, cyan colour coupler respectively
Dyestuff, and release metallic silver and chloride ion.
Metallic silver can damage the tone of dye image, it is necessary to remove these silver.It is aobvious that metallic silver, which is transformed into silver ion,
The back reaction of shadow process.This back reaction is completed by the bleaching agent in bleach-fixing liquid, and the compound of more carboxyl iron can be used
Fe EDTA is as bleaching agent, it is the oxidant of metallic silver, and metallic silver is oxidized to silver chlorate by it.Ethylenediamine tetraacetic
Acetic acid molysite ferric iron is reduced Fe EDTA ferrous iron.
And then Fe EDTA ferrous iron passes through in conjunction with the oxygen in air after completing bleaching process
It is reduced into Fe EDTA ferric iron:
Thus reciprocal, circulation carries out.
Unexposed silver chlorate still remains after colour paper passes through colour development.It needs to dissolve these silver chlorates and go
It removes, this process is exactly fixing.This technology uses fast fixing agent thiosulfate.It is fixed reagentia process:
A certain amount of thiosulfate is consumed, in fixing in order to make thiosulfate amount is constant must add centainly
The thiosulfate of amount maintains to balance.
In colour paper process, humidity strip constantly takes a large amount of developer solutions in bleach-fixing liquid to, since developer solution is alkali
Property solution, flushing process constantly consume the acid in bleach-fixing liquid.In order to maintain the acidity of bleach-fixing liquid, keep pH value constant, it is necessary to add
Add a certain amount of acid to maintain to balance.
Chloride ion is a kind of development restrainer, usually to add in developer solution villaumite such as sodium chloride or with generate chlorine from
Son, its effect are to inhibit the formation of developer fog.The villaumite manually added is replaced using the chloride ion generated in developing process,
Chloride ion quantity is set to have reached an equilibrium state.Washing processing is carried out after colour paper exposure, printing paper enters colour developing solution
In, the principal component developer hair in the silver ion and developer solution that the silver chlorate contained in emulsion figure layer on paper is generated by exposure
Raw reaction, makes developer be changed into semiquinone imines ion:
Under the alkaline condition of developer solution, semiquinone imines ion becomes semiquinone free radical after losing a hydrogen atom:
Later, still under the alkaline condition of developer solution, semiquinone free radical is had an effect with another silver ion again, is converted to
Quinondiimine:
Quinondiimine and half quinondiimine can be with tautomerizations:
Colour coupler in colour paper coating is also dissociated in the case where the alkalinity of developer solution is adjusted, and produces anion:
Colour coupler anion is reacted with half positively charged quinondiimine with connecing, and generates leuco dye:
And leuco dye is reacted with the tautomer quinondiimine of another half quinondiimine again, has ultimately generated dye
Material:
The dyestuff thus generated is the substrate for constituting color image.
The colour paper exposed is determined by development, drift and is washed three processes and obtains by colour paper development process
Photo.Widely used big small-sized photochrome washer is all to develop and print processing using continous way in the market, is exactly constantly to mend
The process (as shown in Figure 1) that new liquid abandons waste liquid is filled, but the other components in old liquid are unable to regeneration, the discharge of waste liquid is determined in drift
It can cause environmental pollution, therefore, for this status, there is an urgent need to develop a kind of colour bleach-fixing liquid of recyclable regenerative, with
Overcome the shortcomings of in currently practical application.
Summary of the invention
The purpose of the present invention is to provide a kind of colour bleach-fixing liquids of recyclable regenerative, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of colour bleach-fixing liquid of recyclable regenerative is made of, wherein part A concentrate A, B and C three parts concentrate
PH between 5~6, comprising water, solvent, fixer and fixing protective agent, the PH of part B concentrate includes between 5~6
Water, bleaching agent and the silver-colored promotor of drift, the PH of C portion concentrate include water, antioxidant and acid between 4~5；A, B and C tri-
Part, which is added sequentially to be diluted again in water, makes up a prescription.
As a further solution of the present invention: the fixer in the part A is ATS (Ammonium thiosulphate), and fixing protective agent is Asia
Sulfate.
As a further solution of the present invention: the bleaching agent in the part B is polycarboxylic acid ferric chelate.
As a further solution of the present invention: the acid in the C portion is polycarboxylic acid.
As a further solution of the present invention: the colour bleach-fixing liquid is applied to RA-4 colour paper high temperature rapid processing work
Skill, pH value require 5~6, and 37.8 DEG C of temperature, washing time is 45 seconds.
Compared with prior art, the beneficial effects of the present invention are: the colour bleach-fixing liquid of the recyclable regenerative, is a kind of drift
White, fixing and acid adding neutralize the solution of three functional unifications, and silver-colored ability is strong and inoxidizability is strong with floating for this novel bleach-fixing liquid
The advantages of, the performance suitable for RA-4 colour paper high temperature rapid processing technique general extensively.The bleach-fixing liquid utilizes flushed
The ferrous ion of Fe EDTA is converted to ferric ion in journey, and the other components in old liquid is made to play function again
Can, it avoids drift and determines the discharge of waste liquid and lead to the pollution to environment, various effective ingredients in medical fluid is made to obtain regeneration.
Detailed description of the invention
Fig. 1 is that flow diagram is determined in the drift of photochrome film processor in the market.
Fig. 2 is that the colour bleach-fixing liquid of recyclable regenerative of the invention is applied to the flow diagram of photochrome film processor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of colour bleach-fixing liquid of recyclable regenerative, by A, B and C three parts
Concentrate composition, wherein the PH of part A concentrate includes water, solvent, fixer and fixing protective agent, the portion B between 5~6
Divide the PH of concentrate between 5~6, comprising water, bleaching agent and floats silver-colored promotor, the PH of C portion concentrate is between 4~5, packet
Aqueous, antioxidant and acid；A, B and C three parts are added sequentially to be diluted again in water and make up a prescription, and being prepared into three functional unifications can
Replenisher is determined in the combination drift for processing colour paper of circular regeneration.
In the present embodiment, the fixer in the part A is ATS (Ammonium thiosulphate), and fixing protective agent is sulphite.
In the present embodiment, the bleaching agent in the part B is polycarboxylic acid ferric chelate,
In the present embodiment, the acid in the C portion is polycarboxylic acid.
The colour bleach-fixing liquid of the recyclable regenerative, to RA-4 colour paper high temperature rapid processing technique, pH value requires 5~
6,37.8 DEG C of temperature, washing time is 45 seconds.It is it is a kind of bleaching, fixing and acid adding neutralize three functional unifications solution, it is this
Novel bleach-fixing liquid has the advantages that float silver-colored ability by force and inoxidizability is strong, suitable for RA-4 colour paper high temperature general extensively
Get the performance of technique express developed.The bleach-fixing liquid is converted to three using the ferrous ion of Fe EDTA in flushing process
Valence iron ion functions the other components in old liquid again, avoids drift and determines the discharge of waste liquid and lead to the dirt to environment
Dye, makes various effective ingredients in medical fluid obtain regeneration.
Due to constantly consuming various chemical constituents in bleaching process, it is therefore intended that this regeneration is added in waste liquid
Fluid infusion modulation reverts to similar fresh bleaching replenisher, returns in flushing liquor and reuses, such iterative cycles may be implemented to subtract
Argentiferous in overflow waste liquid is determined in few 80% or more discharge amount, drift, and 20% waste liquid of residue discharge can mention completely silver by electrolysis method
Afterwards, sewage treatment plant is sent to be uniformly processed.
According to different regions environmental requirement, method (each low current that overflowing liquid uses online microelectrolysis desilver is determined in drift
Electrolysis extracts trace silver, only lowers the silver content of overflowing liquid) after, then regenerative response is carried out, it can be achieved that floating fixed zero-emission, it does
It is utilized to iterative cycles, resource is utilized.
The above are merely the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
Under the premise of being detached from present inventive concept, several modifications and improvements can also be made, these also should be considered as protection model of the invention
It encloses, these all will not influence the effect and patent practicability that the present invention is implemented.
Claims (5)
1. a kind of colour bleach-fixing liquid of recyclable regenerative is made of, which is characterized in that part A is dense A, B and C three parts concentrate
The PH of contracting liquid between 5~6, comprising water, solvent, fixer and fixing protective agent, the PH of part B concentrate between 5~6,
Comprising water, bleaching agent and silver-colored promotor is floated, the PH of C portion concentrate includes water, antioxidant and acid between 4~5；A, B and
C three parts are added sequentially to be diluted again in water and make up a prescription.
2. the colour bleach-fixing liquid of recyclable regenerative according to claim 1, which is characterized in that the fixing in the part A
Agent is ATS (Ammonium thiosulphate), and fixing protective agent is sulphite.
3. the colour bleach-fixing liquid of recyclable regenerative according to claim 1, which is characterized in that the bleaching in the part B
Agent is polycarboxylic acid ferric chelate.
4. the colour bleach-fixing liquid of recyclable regenerative according to claim 1, which is characterized in that the acid in the C portion is
Polycarboxylic acid.
5. the colour bleach-fixing liquid of recyclable regenerative according to claim 1 or 2 or 3 or 4, which is characterized in that colour drift
Determine liquid applied to RA-4 colour paper high temperature rapid processing technique, pH value requires 5~6, and 37.8 DEG C of temperature, washing time 45
Second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414766.4A CN110161798B (en) | 2017-12-25 | 2017-12-25 | Recyclable color bleaching and fixing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414766.4A CN110161798B (en) | 2017-12-25 | 2017-12-25 | Recyclable color bleaching and fixing liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110161798A true CN110161798A (en) | 2019-08-23 |
| CN110161798B CN110161798B (en) | 2022-11-15 |
Family
ID=67640943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711414766.4A Active CN110161798B (en) | 2017-12-25 | 2017-12-25 | Recyclable color bleaching and fixing liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110161798B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046395A (en) * | 1990-05-28 | 1990-10-24 | 刘树斌 | Apparent fixing liquor and developing technique that colour negative and printing paper are general |
| CN1054323A (en) * | 1990-02-20 | 1991-09-04 | 中国科学院大连化学物理研究所 | Direct synthesis technique system concentrated colour bleach-fixing liquid |
| EP1209520A1 (en) * | 2000-11-28 | 2002-05-29 | Eastman Kodak Company | Ferrous photographic bleach-fixing precursor compositions and methods for their use |
| JP2005316251A (en) * | 2004-04-30 | 2005-11-10 | Fuji Photo Film Co Ltd | Concentrated bleaching composition for silver halide color photographic sensitive material and processing method |
-
2017
- 2017-12-25 CN CN201711414766.4A patent/CN110161798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054323A (en) * | 1990-02-20 | 1991-09-04 | 中国科学院大连化学物理研究所 | Direct synthesis technique system concentrated colour bleach-fixing liquid |
| CN1046395A (en) * | 1990-05-28 | 1990-10-24 | 刘树斌 | Apparent fixing liquor and developing technique that colour negative and printing paper are general |
| EP1209520A1 (en) * | 2000-11-28 | 2002-05-29 | Eastman Kodak Company | Ferrous photographic bleach-fixing precursor compositions and methods for their use |
| JP2005316251A (en) * | 2004-04-30 | 2005-11-10 | Fuji Photo Film Co Ltd | Concentrated bleaching composition for silver halide color photographic sensitive material and processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110161798B (en) | 2022-11-15 |
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