US3834928A - Process for producing photographic material - Google Patents

Process for producing photographic material Download PDF

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Publication number
US3834928A
US3834928A US00213182A US21318271A US3834928A US 3834928 A US3834928 A US 3834928A US 00213182 A US00213182 A US 00213182A US 21318271 A US21318271 A US 21318271A US 3834928 A US3834928 A US 3834928A
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US
United States
Prior art keywords
film
gelatin
emulsion
coated
support
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
US00213182A
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English (en)
Inventor
S Tatsuta
W Ueno
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of US3834928A publication Critical patent/US3834928A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
    • G03C1/93—Macromolecular substances therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/795—Photosensitive materials characterised by the base or auxiliary layers the base being of macromolecular substances

Definitions

  • a process for production of a photographic material which comprises the steps of first undercoating an aqueous gelatin solution or a dispersion of gelatin in an organic solvent onto a stretched high molecular weight film having roughened surface, then heat-treating the resultant film at a temperature in the range of from T 40 C. to T +40 C., thereafter applying to the film an emulsion or suspension containing gelatin as a binder. (T being a glass transition temperature of the film-composing resin used.)
  • This invention relates to a process for the production of a photographic material.
  • the main object of the invention is to provide a process for producing a new substrate for a photographic material having an excellent bonding strength between the substrate and a photographic gelatino emulsion or suspension layer provided thereon.
  • Another object of the invention is to provide a water- Iesistant photographic material.
  • the present invention is characterized by the steps of applying an aqueous gelatin solution or dispersion in an organic solvent as an undercoat to a high molecular weight film having roughened surface, drying the undercoat by heating to a temperature in the range from T -40 C. to T +40 C., then further coating thereon an emulsion or suspension containing gelatin as a binder.
  • roughened surface in this invention is meant the surface where a great number of open pores or concaves are present, that is, about 10 -10 pores per 1 cm
  • the pores are formed by the erosion of a solvent or a swelling agent, having 0.1 to in diameter and above 0.1 a in depth.
  • the upper limit of the depth is to such a degree that the form of a support can be maintained, and varies with a number of pores, a diameter of the pores and a thickness of the support.
  • the surface is complicatedly porous.
  • T used herein is defined as the glass transition temperature of the high molecular weight film.
  • emulsion or suspension containing gelatin as a binder used herein includes an aqueous emulsion or an aqueous suspension or gelatin which is prepared with or without the addition of a silver halide such as silver chloride, silver bromide, silver chlorobromide or silver iodobromide, a light-sensitive diazo compound, a substance capable of providing centers of development of the image-receiving material used in a silver halide diffusion transfer process, and other substances constituting necessary components, such as a sensitizer, an antifoggant and a wetting agent, etc.
  • a silver halide such as silver chloride, silver bromide, silver chlorobromide or silver iodobromide
  • a light-sensitive diazo compound a substance capable of providing centers of development of the image-receiving material used in a silver halide diffusion transfer process
  • other substances constituting necessary components such as a sensitizer, an antifoggant and a wetting agent,
  • Stretched high molecular weight films having a roughened surface used in the process of this invention may be obtained by stretching a. film previously formed from a high molecular weight polymer either uniaxially or biaxially according to known plastic stretching techniques, and subjecting the resulted stretched film to any of a variety of surface-roughening treatments. In the case of biaxial stretching, the stretchings may be carried out either simultaneously or sequentially.
  • the roughening of the film surface may be effected by contacting the film with an organic solvent capable of dissolving or swelling the resin of the film to thereby swell the film, then further contacting the swollen film with water or another organic solvent incapable of dissolving the film-composing resin but miscible or compatible with the organic solvent used in the swelling step to thereby elTect the roughening of the film surface, as disclosed in the specification of US. Pat. 3,515,567.
  • the film may be contacted with the solvent by a variety of methods including immersion of the film in the organic solvent, application of the organic solvent with a roll coater, a brush or sprayer.
  • the resin of the film may contain a white pigment such as, for example, titanium dioxide, barium sulfate, calcium sulfate, barium carbonate, lithopone, alumina white, calcium carbonate, silica white and the like, and if desired a colored pigment in an amount of less than 60% by weight based on the weight of the film.
  • a white pigment such as, for example, titanium dioxide, barium sulfate, calcium sulfate, barium carbonate, lithopone, alumina white, calcium carbonate, silica white and the like, and if desired a colored pigment in an amount of less than 60% by weight based on the weight of the film.
  • Resins such as polystyrene, polyesters, polycarbonates and 'polyefins generally have excellent water resistance, dimensional stability, stiffness and the like. Accordingly, a film treated as above exhibits superior whiteness and opacity, and therefore is quite desirable for use as a support for photographic materials. On the other hand, since these resins are inherently hydrophobic and chemically inactive, they have the serious problem that when they are coated with a hydrophilic emulsion containing gelatin, the adhesion between the coated tfilm and the support is very poor.
  • the adhesion is too small to be available for practical use as a photographic material.
  • the solvent may also contain, if necessary, a solvent capable of dissolving the film resin, for example, in case of using polystyrene as the film resin, tetrahydrofuran, methyl acetate, ethyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl chloride, ethylene chloride, cyclohexane, benzene, dimethyl formamide etc.
  • a solvent capable of dissolving the film resin for example, in case of using polystyrene as the film resin, tetrahydrofuran, methyl acetate, ethyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl chloride, ethylene chloride, cyclohexane, benzene, dimethyl formamide etc.
  • the photographic material obtained in accordance with the process of this invention has excellent adhesion between the support and the photographic emulsion coating layer, excellent water-resistance and excellent wet dimensional stability, so that it enables a shortening or speeding up of development, fixation, water rinsing and- -like procedures, most especially the drying period.
  • the term good adhesion refers to the case where the sample has a stripping resistance of greater than 8 g./mm., which is usually sufficient for practical use as a photographic material.
  • the thus undercoated film was immediately dried at 60 C. for 10 minutes, thereafter coated with a liquid capable of forming an image-receiving layer of an imagereceiving material to be used in a silver salt diffusion transfer photography process having the following composition:
  • the stripping test for this image-receiving material showed a stripping strength at the dry state of 18 g./mm. and at the wet state of 5 g./mm.
  • adhesion strength of 3 g./mm. at the dry state and 1 g./mm. at the wet state was obtained for another sample prepared by coating the undercoat liquid followed by drying in air at room temperature.
  • EXAMPLE 3 A polystyrene sheet containing 22% by weight of titanium dioxide particles was biaxially stretched at 120 C. in both lateral and longitudinal directions at an elongation of 1.5 times, respectively, to produce a white polystyrene support of a thickness of 0.1 mm.
  • This polystyrene support was dipped in methyl ethyl ketone for 3 seconds and dried in an air stream for 10 seconds, then dipped in methanol for 30 seconds to give a white and roughened polystyrene support containing titanium dioxide.
  • This support was coated with the undercoat liquid described in Example 1, allowed to stand at 5 C. for 10 minutes for setting, then dried in air at 80 C. for 20 minutes.
  • This film was coated with a silver halide color photographic emulsion having the following composition per square meter of the film.
  • the result of the stripping off test on the above film coated with the color emulsion showed a good adhesion strength in both the dry and wet state, i.e., of a level required for color photographic material, that are 17 g./ mm. and 5 g./mm. in respective states.
  • the abovernentioned dispersion was prepared by mixing 1 part of 5% by weight aqueous solution of alkylben- Zene sulfonic acid, 10 parts of 10% by weight gelatin aqueous solution, 1 part of dibutylphthalate, 1 part of the above mentioned coupler, 2 parts of ethyl acetate and 0.5 part of methanol solution of 20% by weight anionic active agent, while vigorously stirring.
  • the undercoat layer was peeled off naturally when the undercoated film was dried at room temperature by an air stream after setting for 10 seconds at 5 C.
  • EXAMPLE 4 A polycarbonate film 0.2 mm. thick which had been uniaxially stretched at 190 C. to an elognation of 1.8 times was dipped for 3 seconds in dimethyl formamide and then for another 30 seconds: in methanol to give a whitened film having a roughened surface. This film was coated with the aqueous gelatin solution of Example 1 then heat-treated at 150 C., to dry it for 2 minutesjOnto the resultant film there was coated the silver halide photographic emulsion used in Exampe 1.
  • a process for the production of a photographic material which comprises the steps of (a) roughening the surface of a stretched high molecular weight film; (b) applying to said roughened film an undercoat consisting essentially of an aqueous gelatin solution containing 5 to 15% by weight of gelatin and a gelatin hardener; (c) drying said undercoat by heat treatment at a temperature within the range Tg40 C. to T +40 C. wherein T is the glass transition temperature of said film; and (d) applying to said undercoated film a photographic emulsion or suspension containing gelatin as a binder.
  • a process for the production of a photographic material which comprises the steps of (a) roughening the surface of a stretched high molecular weight film; (b) applying to said roughened film an undercoat consisting essentially of a dispersion of gelatin in an organic solvent containing from 0.5 to 5% gelatin by weight and a gelatin hardener; '(c) drying said undercoat by heat treatment at a temperature within the range T -40 C. to T +40 C. wherein Tg is the glass transition temperature of said film and (d) applying to said undercoated film a photographic emulsion or suspension containing gelatin as a binder.
  • said film is comprised of a resin selected from the group consisting of polystyrene, polyester and polycarbonate.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Laminated Bodies (AREA)
US00213182A 1970-12-28 1971-12-28 Process for producing photographic material Expired - Lifetime US3834928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45120542A JPS4916491B1 (enExample) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
US3834928A true US3834928A (en) 1974-09-10

Family

ID=14788858

Family Applications (1)

Application Number Title Priority Date Filing Date
US00213182A Expired - Lifetime US3834928A (en) 1970-12-28 1971-12-28 Process for producing photographic material

Country Status (6)

Country Link
US (1) US3834928A (enExample)
JP (1) JPS4916491B1 (enExample)
CA (1) CA975625A (enExample)
DE (1) DE2165034A1 (enExample)
FR (1) FR2120984A5 (enExample)
GB (1) GB1337760A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939000A (en) * 1973-11-21 1976-02-17 E. I. Du Pont De Nemours And Company Flat photographic film produced by heating above the second order transition temperature of the base
US4128426A (en) * 1976-03-01 1978-12-05 Konishiroku Photo Industry Co., Ltd. Process for subbing photographic hydrophobic films
US4308342A (en) * 1980-10-31 1981-12-29 Eastman Kodak Company Dimensionally stabilized imaging element and method
US4347307A (en) * 1980-10-31 1982-08-31 Eastman Kodak Company Dimensionally stabilized imaging element and method
US4780402A (en) * 1975-10-23 1988-10-25 Imperial Chemical Industries, Plc Films of a light sensitive element having a support polyethylene terephthalate containing barium sulfate particles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151394U (enExample) * 1974-10-15 1976-04-19
JPS5427091U (enExample) * 1977-07-27 1979-02-22

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698235A (en) * 1950-03-16 1954-12-28 Du Pont Photographic elements

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939000A (en) * 1973-11-21 1976-02-17 E. I. Du Pont De Nemours And Company Flat photographic film produced by heating above the second order transition temperature of the base
US4780402A (en) * 1975-10-23 1988-10-25 Imperial Chemical Industries, Plc Films of a light sensitive element having a support polyethylene terephthalate containing barium sulfate particles
US4128426A (en) * 1976-03-01 1978-12-05 Konishiroku Photo Industry Co., Ltd. Process for subbing photographic hydrophobic films
US4308342A (en) * 1980-10-31 1981-12-29 Eastman Kodak Company Dimensionally stabilized imaging element and method
US4347307A (en) * 1980-10-31 1982-08-31 Eastman Kodak Company Dimensionally stabilized imaging element and method

Also Published As

Publication number Publication date
DE2165034A1 (de) 1972-07-06
JPS4916491B1 (enExample) 1974-04-23
GB1337760A (en) 1973-11-21
FR2120984A5 (enExample) 1972-08-18
CA975625A (en) 1975-10-07

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