CN108153105A - A kind of coating fluid and its product that prevent silver halide film from generating photographic fog - Google Patents
A kind of coating fluid and its product that prevent silver halide film from generating photographic fog Download PDFInfo
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- CN108153105A CN108153105A CN201711490400.5A CN201711490400A CN108153105A CN 108153105 A CN108153105 A CN 108153105A CN 201711490400 A CN201711490400 A CN 201711490400A CN 108153105 A CN108153105 A CN 108153105A
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- Prior art keywords
- coating fluid
- emulsion
- silver halide
- photographic fog
- coating
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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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- G03C2001/341—Antifoggant
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
A kind of coating fluid for preventing silver halide film from generating photographic fog, the coating fluid is emulsion coating fluid, under 40~60 DEG C of constant temperature of temperature, the addition coating additive in emulsion coating fluid, it is per 1.0~200.0mL of addition in 1kg emulsion coating fluids to be coated with additive addition, is coated on PET polyester film bases after adding completely；The emulsion coating fluid is prepared for silver emulsion, and silver halide is silver chlorate, chlorine silver bromide, silver bromide and bromo-iodide.After tested, coating fluid of the invention is enough effectively reduced photographic fog in drying process is coated with, and photographic fog parameter declines 40% 80%.
Description
Technical field
The present invention relates to photosensitive material technical fields, are related specifically to a kind of coating for preventing silver halide film from generating photographic fog
Liquid.
Background technology
Silver emulsion is preparing, can generate photographic fog during processing and storage, and the generation of photographic fog seriously affects film
It uses.The reason of unexposed silver halide is referred to as photographic fog by processing of developing and the melanism occurred, the photographic fog of generation has
Very much：Emulsion maturation is more than the optimal platform phase；Sulfur-bearing is excessive in gelatin；During emulsification, the excessively high dry ashes in coating process of pBr
Mist etc..
For the photographic fog of emulsion in use is avoided to occur, people propose addition antifoggant in succession, are reduced with reaching
The purpose of photographic fog in the case of existing film prevents film from generating photographic fog, uniquely relies on antifoggant addition, passes through antifog
Agent reduces the photographic fog occurred in film production process.As described in CN104142610A：1- phenyl -5- sulfydryls four are added in emulsion
Nitrogen azoles solution reduces the photographic fog of film.As described in Chinese patent CN105425530A：6- nitro benzo miaows are added in emulsion
The acetate of azoles reduces photographic fog, improves film steadiness.These prevent the effect of photographic fog mainly in emulsion production process
The photographic fog of generation although having certain effect for the drying photographic fog generated in film coating process, adds antifog
Agent cannot thoroughly solve dry photographic fog.
The photographic fog generated in film coating process is essentially from dry photographic fog.Emulsion grain is cube point with " trap "
Battle array structure, under pressure effect, the stress that mechanical deformation generates makes the electronics being located in impurity energy level or even makes normal energy level
Electronics can be excited and enter the cubic lattice structure of " trap ", lead to ash so as to form the silver-colored spot that many can develop
The rising of mist.Film can generate shrinkage stress, this stress is in silver halide in the substances dehydration shrinkage such as drying process, gelatin
On particle, it is that electronics enters " trap " region, the latent image that can develop is formed, so as to form photographic fog.
Fully analyze film photographic fog producing cause in process of production：Stress effect is that photographic fog generates most in coating process
One of the main reasons reduces stress effect in the drying process, so as to reduce the photographic fog of film in process of production.
This patent is started with from coating additive, the stress effect generated in drying process is coated with using physical method reduction, so as to subtract
The generation of few photographic fog.It is, in general, that addition absorbent material can delay drying process, the stress effect generated when reducing dry；Add
Add elastic material, since elastic material is played a supporting role in dried film forming procedure, have one for the stress effect of generation
Fixed resistant function, so as to reduce the generation of stress effect.Addition one and the two use simultaneously can control drying process
The stress photographic fog of middle generation, so as to make photographic fog control in certain range.
This patent can be good at inhibiting generating in coating drying process using coating fluid made from the method and its product
Photographic fog.
Invention content
The object of the present invention is to provide a kind of coating fluid and its product that prevent silver halide film from generating photographic fog, this described paintings
The photographic fog very little that cloth liquid generates in coating process, and the sensitivity of emulsion is not influenced.
For achieving the above object, the present invention adopts the following technical scheme that：
It is a kind of prevent silver halide film generate photographic fog coating fluid, the coating fluid be emulsion coating fluid, temperature 40~
Under 60 DEG C of constant temperature, coating additive is added in emulsion coating fluid, coating additive addition is to add per in 1kg emulsion coating fluids
Enter 1.0~200.0mL, be coated on PET polyester film bases after adding completely；The emulsion coating fluid for silver emulsion prepare and
Into silver halide is silver chlorate, chlorine silver bromide, silver bromide and bromo-iodide.
The above-mentioned coating fluid for preventing silver halide film from generating photographic fog, the particle of the silver halide is cube or plate
Grain, the size of silver halide is 0.2~2.0 μm.
The above-mentioned coating fluid for preventing silver halide film from generating photographic fog, coating additive are low polymerization degree polymeric adduct, are wrapped
Three (2- ethoxys) isocyanuric acid esters, sodium carboxymethylcellulose, sodium styrene sulfonate, polyvinyl alcohol is included with polyacrylic acid to polymerize
Object, polyethylene glycol series polymer, polyvinylpyrrolidone, polyacrylamide, Polypropionate Type of Collective object, acrylic acid and benzene second
Alkene copolymer, the copolymer of acrylic acid and ethene derivatives, acrylic acid and copolymer of styrene and ethene derivatives etc..
The above-mentioned coating fluid for preventing silver halide film from generating photographic fog, the molecular weight of the low polymerization degree polymeric adduct are
3000-50000, wherein, three (2- ethoxys) isocyanuric acid esters, Polypropionate Type of Collective object, acrylic acid and styrol copolymer,
The copolymer of acrylic acid and ethene derivatives, acrylic acid and the copolymer of styrene and ethene derivatives are dispersion emulsion, Gu
Content is 10.0-50.0%.
The above-mentioned coating fluid for preventing silver halide film from generating photographic fog, the sodium carboxymethylcellulose, gather at sodium styrene sulfonate
Vinyl alcohol and acrylic acid polymer, polyvinylpyrrolidone, polyacrylamide, are configured as polyethylene glycol series polymer
Aqueous solution, a concentration of 1.0%-30.0%.
After tested, coating fluid of the invention is enough effectively reduced photographic fog in drying process is coated with, and photographic fog parameter declines
40%-80%.
Specific embodiment
The present invention's prevents silver halide film from generating the coating fluid of photographic fog, and when preparation carries out as steps described below：
Silver emulsion is prepared according to conventional double injecting methods, increasing sense by sulphur gold is prepared ripe silver halide emulsion
Agent.Before the coating, silver emulsion maintains 40~60 DEG C of constant temperature, adds surfactant, steady successively in silver emulsion
Determine agent, hardener, emulsion coating fluid is made.The addition coating additive in emulsion coating fluid, coating additive dosage for 1.0~
200.0ml is coated with after adding completely on PET polyester film bases, after coating after the condensed and dry processing of film, obtains finished product
Film.
Wherein, the emulsion coating fluid is prepared for silver emulsion, wherein, silver halide is silver chlorate, chlorine bromine
Change silver, silver bromide and bromo-iodide；The particle of silver halide is cube or plate-like particles, and the size of silver halide is 0.2~2.0
μm。
It is mainly low polymerization degree polymeric adduct to be coated with additive, mainly including three (2- ethoxys) isocyanuric acid esters, carboxylic
Sodium carboxymethylcellulose pyce, sodium styrene sulfonate, polyvinyl alcohol and acrylic acid polymer, polyethylene glycol series polymer, polyethylene
Pyrrolidones, polyacrylamide, Polypropionate Type of Collective object, acrylic acid and styrol copolymer, acrylic acid and ethene derivatives
Copolymer, acrylic acid and styrene and ethene derivatives copolymer etc..
The molecular weight of the low polymerization degree polymeric adduct is 3000-50000, preferably 10000-30000.
Described three (2- ethoxys) isocyanuric acid ester, Polypropionate Type of Collective object, acrylic acid and styrol copolymer, propylene
Acid is dispersion emulsion with copolymer, acrylic acid and the styrene of ethene derivatives and the copolymer of ethene derivatives.It is preferred that 10-
25%.The system that preparation method is formed using anionic emulsifier and nonionic emulsifier, control emulsifier are poly- in difference
The charging technology and component in conjunction stage prepare room temperature polyacrylate dispersion emulsion by semi-continuous seed emulsion polymerization technique.
The sodium carboxymethylcellulose, sodium styrene sulfonate, polyvinyl alcohol and acrylic acid polymer, polyethylene glycol
Series polymer, polyacrylamide, is configured as aqueous solution, a concentration of 1.0%-30.0% at polyvinylpyrrolidone.
The coating additive addition is to add in 1.0~200.0mL, preferably 20-100ml in every 1kg emulsion coating fluids,
During test film, drop can effectively be imitated in coating process by adding the coating fluid of the coating additive
Photographic fog in low coating process, photographic fog decline 40%-80%.
Embodiment 1
Silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 1, in 40 DEG C of constant temperature,
Add in table coating additive (polyvinyl alcohol), polyvinyl alcohol for commercially available polyvinyl alcohol and be configured to 10% aqueous solution, add
Dosage is to add in 5mL per in 1KG emulsion coating fluids, is coated with extrusion coated mode, and chip base used is 175 μm of polyester piece
Base is dried in orifice plate bellows, and control drying temperature is 35 DEG C, and drying time 30min obtains finished product film
Embodiment 2
Silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 1, in 40 DEG C of constant temperature,
Table coating additive (polyacrylamide) is added in, polyacrylamide is commercial polyacrylamide, and solid content 50% adds
It measures to add in 100mL in every 1KG emulsions coating fluid, is coated with extrusion coated mode, chip base used is 175 μm of polyester piece
Base is dried in orifice plate bellows, and control drying temperature is 35 DEG C, and drying time 30min obtains finished product film.
Embodiment 3
Silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 1, in 40 DEG C of constant temperature,
Table coating additive (polyacrylate) and hardener are added in, wherein polyacrylate uses anionic emulsifier and nonionic
Type emulsifier composition system, control emulsifier different polymerization stages charging technology and component, pass through semi-continuous seed breast
Liquid polymerization technique prepares room temperature polyacrylate dispersion emulsion, solid content 20%, and additive amount is per 1KG emulsion coating fluids
Middle addition 50mL, is coated with extrusion coated mode, and chip base used is 175 μm of polyester film base, is carried out in orifice plate bellows
Dry, control drying temperature is 35 DEG C, and drying time 30min obtains finished product film.
The film of comparative example 1 and embodiment 1,2,3 is cut, and be exposed, time for exposure 0.02S, developed
Condition is D-19B developer solutions, and 20 DEG C of development 5min, sensitivity (S) asks for as follows：S=1/H (Dmin+0.85), H tables
The light exposure being shown as at (0.85+Dmin), Dmin are minimum density, and Dmin=D0+D chip bases, D0 is Fog density.1 bromination of table
Silver-colored cubic granules emulsion is after normal coating and increasing coating additive, the comparison of sensitivity and photographic fog.
Embodiment 4
Iodine silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 2, in 40 DEG C of constant temperature situations
Under, table coating additive (polyacrylamide) is added in, polyacrylamide is commercial polyacrylamide, solid content 50%,
Additive amount be per 1KG emulsion coating fluids in add in 100mL, be coated with extrusion coated mode, chip base used is 175 μm poly-
Ester chip base is dried in orifice plate bellows, and control drying temperature is 35 DEG C, and drying time 30min obtains finished product film.
Embodiment 5
Iodine silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 2, in 40 DEG C of constant temperature situations
Under, table coating additive (polyacrylamide) is added in, polyacrylamide is commercial polyacrylamide, solid content 50%,
Additive amount be per 1KG emulsion coating fluids in add in 100mL, be coated with extrusion coated mode, chip base used is 175 μm poly-
Ester chip base is dried in orifice plate bellows, and control drying temperature is 35 DEG C, and drying time 30min obtains finished product film.
Embodiment 6
Iodine silver bromide emulsion coating solution：By the emulsion coating fluid described in (1) in comparative example 2, in 40 DEG C of constant temperature situations
Under, add in table coating additive (polyacrylate) and hardener, wherein polyacrylate is using anionic emulsifier and non-
The system of ionic emulsifying agent composition, control emulsifier pass through semicontinuous kind in the charging technology and component of different polymerization stages
Sub- emulsion polymerization technique prepares room temperature polyacrylate dispersion emulsion, solid content 20%, and additive amount is to be applied per 1KG emulsions
50mL is added in cloth liquid, is coated with extrusion coated mode, chip base used is 175 μm of polyester film base, in orifice plate bellows
It is dried, control drying temperature is 35 DEG C, and drying time 30min obtains finished product film.
The film of comparative example 2 and embodiment 4,5,6 is cut, and be exposed, time for exposure 0.02S, developed
Condition is D-19B developer solutions, and 20 DEG C of development 5min, sensitivity (S) asks for as follows：S=1/H (Dmin+0.85), H tables
The light exposure being shown as at (0.85+Dmin), Dmin are minimum density, and Dmin=D0+D chip bases, D0 is Fog density.
2 silver iodobromide plate-like particles emulsion of table is after normal coating and increasing coating additive, pair of sensitivity and photographic fog
Than.
Comparative example 1：
(1) preparation of silver halide cubic granules emulsion coating fluid：In the double note instrument of micro-processor controlled reaction type, to reaction
The deionized water of 800 milliliters of addition, photographic gelatin (mass percentage in the mixture is 2%), potassium bromide, add in device
Shaping agent obtains just glue, and under the conditions of 63 DEG C, kbr aqueous solution and silver nitrate aqueous solution, emulsification are injected into reactor
Time is 60 minutes, obtains silver bromide emulsion, and particle mean size is 0.5 μm, and emulsion grain is cubic granules, emulsification knot
Shu Hou, emulsion, which is cooled down, and adds in sedimentation agent and acid makes its sedimentation, washes 4 times, then adds in photographic gelatin and is redissolved, will
Glue silver ratio is adjusted to 1.0, adds in sodium carbonate and adjusts pH and add in potassium bromide solution adjusting pBr, emulsion remelt is stirred evenly, finally
It cools down spare.Under 50 DEG C of constant temperature, obtained silver bromide grain emulsion is subjected to sulphur gold chemical sensitization, it is 100~300 points ripe
Clock is eventually adding stabilizer, is freezed at 0 DEG C rapidly, obtains the ripe silver bromide emulsion through sulphur gold chemical sensitization.Ripe bromination
Silver-colored emulsion sequentially adds surfactant, stabilizer and hardener and emulsion coating fluid is made in 40 DEG C of constant temperature.
(2) silver bromide emulsion coating solution：By the emulsion coating fluid described in (1), applied with extrusion coated mode
Cloth, chip base used are 175 μm of polyester film base, are dried in orifice plate bellows, and control drying temperature is 35 DEG C, drying time
30min obtains finished product film.
Comparative example 2：
(1) preparation of silver halide plate-like particles emulsion coating fluid：In the double note instrument of micro-processor controlled reaction type, to reactor
The middle deionized water for adding in 800 milliliters, photographic gelatin (mass percentage in the mixture is 2%), potassium bromide, add in whole
Shape agent obtains just glue, and under the conditions of 67 DEG C, potassium bromide and potassium iodide mixed aqueous solution and silver nitrate water are injected into reactor
Solution, emulsification times are 120 minutes, obtain silver bromide emulsion, and particle mean size is 1.2-1.8 μm, and emulsion grain is plate
Shape particle, after emulsification, emulsion, which is cooled down, and adds in sedimentation agent and acid makes its sedimentation, washes 4 times, it is bright then to add in photograph
Glue is redissolved, and glue silver ratio is adjusted to 1.2, is added in sodium carbonate and is adjusted pH and add in potassium bromide solution adjusting pBr, by emulsion remelt
It stirs evenly, finally cools down spare.Under 50 DEG C of constant temperature, obtained silver bromide grain emulsion is subjected to sulphur gold chemical sensitization, into
Ripe 100~300 minutes, stabilizer is eventually adding, is freezed at 0 DEG C rapidly, obtains the ripe iodine bromination through sulphur gold chemical sensitization
Silver-colored emulsion.Ripe iodine silver bromide emulsion sequentially adds surfactant, stabilizer and hardener in 40 DEG C of constant temperature and is made
Emulsion coating fluid.
(2) iodine silver bromide emulsion coating solution：By the emulsion coating fluid in comparative example 2 described in (1), extrusion coated is used
Mode is coated, and chip base used is 175 μm of polyester film base, is dried in orifice plate bellows, and control drying temperature is 35
DEG C, drying time 30min obtains finished product film.
Table 1
| D0 | γ | S | |
| Comparative example 1 | 0.25 | 4.5 | 6.8 |
| Embodiment 1 | 0.05 | 4.5 | 6.6 |
| Embodiment 2 | 0.06 | 4.4 | 6.7 |
| Embodiment 3 | 0.05 | 4.4 | 6.5 |
Table 2
| D0 | γ | S | |
| Comparative example 2 | 0.20 | 4.3 | 3.8 |
| Embodiment 4 | 0.04 | 4.3 | 3.7 |
| Embodiment 5 | 0.05 | 4.3 | 3.8 |
| Embodiment 6 | 0.05 | 4.2 | 3.8 |
Claims (5)
1. a kind of coating fluid for preventing silver halide film from generating photographic fog, it is characterized in that：The coating fluid is emulsion coating fluid, in temperature
It spends under 40~60 DEG C of constant temperature, the addition coating additive in emulsion coating fluid, coating additive addition is per the coating of 1kg emulsions
1.0~200.0mL is added in liquid, is coated on PET polyester film bases after adding completely；The emulsion coating fluid is silver emulsion
It is prepared, silver halide is silver chlorate, chlorine silver bromide, silver bromide and bromo-iodide.
2. the coating fluid as described in claim 1 for preventing silver halide film from generating photographic fog, it is characterized in that：Of the silver halide
Grain is cube or plate-like particles, and the size of silver halide is 0.2~2.0 μm.
3. the coating fluid as claimed in claim 2 for preventing silver halide film from generating photographic fog, it is characterized in that：It is low to be coated with additive
Degree of polymerization polymeric adduct, including three (2- ethoxys) isocyanuric acid esters, sodium carboxymethylcellulose, sodium styrene sulfonate, poly- second
Enol and acrylic acid polymer, polyethylene glycol series polymer, polyvinylpyrrolidone, polyacrylamide, Polypropionate class
Polymer, acrylic acid and styrol copolymer, the copolymer of acrylic acid and ethene derivatives, acrylic acid and styrene and ethylene spread out
Copolymer of biology etc..
4. the coating fluid according to claim 3 for preventing silver halide film from generating photographic fog, it is characterized in that：The low polymerization degree
The molecular weight of polymeric adduct is 3000-50000, wherein three (2- ethoxys) isocyanuric acid esters, Polypropionate Type of Collective object, third
Olefin(e) acid and copolymer, acrylic acid and the styrene of styrol copolymer, acrylic acid and ethene derivatives and being total to for ethene derivatives
Polymers is dispersion emulsion, solid content 10.0-50.0%.
5. the coating fluid according to claim 4 for preventing silver halide film from generating photographic fog, it is characterized in that：The carboxymethyl is fine
The plain sodium of dimension, sodium styrene sulfonate, polyvinyl alcohol and acrylic acid polymer, polyethylene glycol series polymer, polyvinylpyrrolidine
Ketone, polyacrylamide are configured as aqueous solution, a concentration of 1.0%-30.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490400.5A CN108153105B (en) | 2017-12-30 | 2017-12-30 | Coating liquid for preventing silver halide film from generating fog and product thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490400.5A CN108153105B (en) | 2017-12-30 | 2017-12-30 | Coating liquid for preventing silver halide film from generating fog and product thereof |
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| CN108153105A true CN108153105A (en) | 2018-06-12 |
| CN108153105B CN108153105B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045288A (en) * | 2019-12-20 | 2020-04-21 | 乐凯医疗科技有限公司 | Sensitization method of photographic film emulsion and film preparation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207040A (en) * | 1982-05-27 | 1983-12-02 | Konishiroku Photo Ind Co Ltd | Silver halide photosensitive material |
| JPH10339926A (en) * | 1997-04-08 | 1998-12-22 | Mitsubishi Paper Mills Ltd | Silver halide photographic sensitive material |
| CN104142610A (en) * | 2013-05-09 | 2014-11-12 | 天津天感科技有限公司 | Fog prevention method for silver chlorobromide film |
-
2017
- 2017-12-30 CN CN201711490400.5A patent/CN108153105B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207040A (en) * | 1982-05-27 | 1983-12-02 | Konishiroku Photo Ind Co Ltd | Silver halide photosensitive material |
| JPH10339926A (en) * | 1997-04-08 | 1998-12-22 | Mitsubishi Paper Mills Ltd | Silver halide photographic sensitive material |
| CN104142610A (en) * | 2013-05-09 | 2014-11-12 | 天津天感科技有限公司 | Fog prevention method for silver chlorobromide film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045288A (en) * | 2019-12-20 | 2020-04-21 | 乐凯医疗科技有限公司 | Sensitization method of photographic film emulsion and film preparation |
| CN111045288B (en) * | 2019-12-20 | 2023-09-19 | 乐凯医疗科技有限公司 | Sensitization method of photographic film emulsion and film preparation |
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| Publication number | Publication date |
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| CN108153105B (en) | 2021-06-15 |
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