US2173480A - Manufacture of photographic materials - Google Patents
Manufacture of photographic materials Download PDFInfo
- Publication number
- US2173480A US2173480A US96575A US9657536A US2173480A US 2173480 A US2173480 A US 2173480A US 96575 A US96575 A US 96575A US 9657536 A US9657536 A US 9657536A US 2173480 A US2173480 A US 2173480A
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- United States
- Prior art keywords
- protective layer
- picture
- developed
- washed
- photographic
- Prior art date
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- Expired - Lifetime
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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
- G03C11/00—Auxiliary processes in photography
- G03C11/08—Varnishing, e.g. application of protective layers on finished photographic prints
Definitions
- My present invention relates to the manufacture of photographic materials and more particularly to the manufacture of a photographic material provided with a protective layer.
- One of its objects is an improved process of providing a photographic material with a protective layer. Another object is the photographic materials provided with a protective layer in accordance with the invention. Further objects will be seen from the detailed specification following hereafter.
- This invention is based on the observation that protective layers can be applied with advantage on the undried, moist film by dipping the latter into, or otherwise coating it with, an aqueous dispersion of an organic natural or artificial colloid, for example polyacrylic acid esters such as polyacrylic acid-methyl ester, polyvinyl ethers, polyvinyl alcohols, phenol-formaldehyde resins, albumin, casein or the like.
- an organic natural or artificial colloid for example polyacrylic acid esters such as polyacrylic acid-methyl ester, polyvinyl ethers, polyvinyl alcohols, phenol-formaldehyde resins, albumin, casein or the like.
- the technical progress of this method of applying the protective layer is as follows: Before the film is wound to form the roll, during which operation the first damage is likely to occur, the protective layers are applied at the conclusion of the final washing. The film is then dried, whereby the protective layer is simultaneously dried, and when the film is wound up it is protected by the layer from being
- the layer may be lapplied by drawing the film through the dispersion or solution or coating it with the latter.
- the bath may simultaneously contain a hardening agent, a softening agent, a smoothing agent or a wetting agent.
- Such protective layers are of more importance for the v"emulsion side of cinematograph films; they make the sensitive layer insensitive to moisture, prevent by their smooth surface the settlement of dust and by the hardness of their own surface protect the picture from scratches and consequent dirtying of the picture window.
- Such a layer may, however, also be provided, particularly in the case of cinematograph films, on the rear side of the film; for this purpose the dispersion or colloid solution should contain an organic solvent or wetting agent in such proportion that the surface of the lm will be uniformly wetted by the liquid. 'Ihe addition of wetting agent may generally amount to 0.5 to 2 per cent calculated on the colloid, however, the invention is not llmfted to these quantities, the addition may be greater or smaller.
- the solution or dispersion applied to the emulsion layer may also contain a wetting agent, so that the same liquid will serve for simultaneously applying the protective layer to the two sides of the film.
- the invention is particularly useful for clnematograph films but is not limited thereto. It may also be applied with advantage to photographic plates or papers, particularly to the emulsion side thereof.
- Example 2 -6.5 parts by volume of a dispersion of 25 per cent strength of a mixed polymerizate from polyvinyl-chloride and polyacrylic acid-methyl ester in water,
- Example 4 -6.5 parts by volume of a dispersion of 25 per centstrength of polyacrylic acid-methyl ester in water 13.5 parts by volume of water 0.8 part by volume of glycerin. Treatment is as described in Example l.
- Example 5 -6.5 parts by volume of a dispersion of 25 per centstrength of polyacrylic acid-methyl ester in water 8 parts by volume of methanol. Treatment is as described in Example l.
- Example 6 ?.-120 grams of casein, swollen in 400 cc. of water, 200 cc. of cold saturated borax solution, 800 cc. of water 400 cc. of acetone 30 cc. of formaldehyde cc. of acetone. Treatment as described in Example 1.
- Example 7 -- 650 cc. of a dispersion of 25 per cent strength of polyacrylic acid-methyl ester in water
- the moist picture is immersed in this bath and after draining excess of liquid from it, it is dried. in the case oi a dry picture the bath. is brushed over the surface with a wad of cotton-wool, sponge or wash leather, and the film allowed to dry.
- Eample 9.-A developed, fixed and washed photographic plate is treated with one of the liquids prescribed in Examples l, 2, 3, 4 and li and is then dried. The procedure is the same as that described in Example 8 for the paper picture. Already dry plates may be treated in the same manner as the pictures on paper.
- the single iigure of the accompanying drawing shows a photographic material in accordance with the invention.
- the support l is coated with an emulsion layer 2, and on the emulsion layer 2 there is provided the protective layer 3.
- a process of providing a photographic material having'a gelatin emulsion layer containing a developed, xed and Washed picture with a protective layer which comprises applying to said photographic material while it is still moist an aqueous dispersion of a highly polymeric com.- pound adapted to form a uniform lm with a hard surface and selected from the class consisting of natural and artificial organic colloids, and drying said material.
- a process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises applying to said photographic material while it is still moist an aqueous dispersion of a highly polymeric compound adapted to form a uniform film with a hard surface and selected from the class consisting of natural and artificial organic colloids, and a wetting agent, and drying said material.
- a process of providing a photographic material having a gelatin emulsion layer containing a developed, xed and washed picture with a protective layer which comprises applying to said photographic material While it is still moist an aqueous dispersion of a highly polymeric compound selected from the class consisting of polyacrylic acid esters, polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, and drying said material.
- a process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises immerslng said photographic material while it is still moist into a dispersion of polyacryllc acid methyl ester in water and methanol, stripping the excess of liquid and drying said photographic material.
- a process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises immersing said photographic material while it is still moist in casein, swollen in an aqueous solution of borax, acetone and formaldehyde, stripping the excess of liquid and drying said photographic material.
- a process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a pro- /tective layer which comprises immersing said photographic material While it is still moist into a dispersion of polyacrylic acid methyl ester in wat-er to which the sodium salt of NwIeyltaurine has been added, stripping the excess of liquid, and drying said photographic materia.
- ./i photographic material provided with a gelatin emulsion layer containing a developed, fixed and washed picture and a protective layer of a highly polymeric compound selected from the class consisting of polyacrylic acid esters, polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, said protective layer being applied to said developed, fixed and washed material while it is still moist.
- a photographic material provided with a gelatin emulsion layer containing a developed
- a photographic material provided with a gelatin emulsion layer containing a developed, xed and washed picture and a protective layer of casein, said protective layer being applied to said developed, fixed and washed material while it is still moist.
- a photographic material provided with a gelatin emulsion layer containing a developed, fixed and washed picture and a protective layer of polyacrylic acid methyl ester and N-oleyltaurine, said protective layer being applied to said developed, iixed and washed material While it is still moist.
- a process of forming a protective layer on a cinematographic lm having a gelatin emulsion layer containing a developed, fixed and washed picture after the developing, xing and washing the step which comprises immersing said lm while it is still moist into an aqueous dispersion containing a compound selected from the class consisting of polyacrylic acid esters. polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, and drying said material.
Description
Sept. 19, 1939. A JUNG 2,173,480
MANUFACTURE OF PHOTOGBAPHIC MATERIALS Filed Aug. 18, 1936 Maig /n ven for Patented Sept. 19, 1939 2,173,480 PATENT OFFICE MANUFACTURE 0F PHOTOGRAPHIC MATERIALS Adolf Jung, Dessau, Germany, assignor, by mesne assignments, to Agfa Ansco Corporation, Binghamton, N. Y., a corporation of Delaware Application August 1s, 193s, serial No. 96,575
In Germany August 22, 1935 11 Claims.
My present invention relates to the manufacture of photographic materials and more particularly to the manufacture of a photographic material provided with a protective layer.
One of its objects is an improved process of providing a photographic material with a protective layer. Another object is the photographic materials provided with a protective layer in accordance with the invention. Further objects will be seen from the detailed specification following hereafter.
For avoiding scratches and other damage to the emulsion side or the rear side of photographic plates or films protective layers have been applied to the respective faces. This has been done either in the production of the film before it is sensitized or, particularly inthe case of cinematograph films, after the development to the finished dry film. Gelatin or substances of the nature of varnish have been used for these coatings.
This invention is based on the observation that protective layers can be applied with advantage on the undried, moist film by dipping the latter into, or otherwise coating it with, an aqueous dispersion of an organic natural or artificial colloid, for example polyacrylic acid esters such as polyacrylic acid-methyl ester, polyvinyl ethers, polyvinyl alcohols, phenol-formaldehyde resins, albumin, casein or the like. The technical progress of this method of applying the protective layer is as follows: Before the film is wound to form the roll, during which operation the first damage is likely to occur, the protective layers are applied at the conclusion of the final washing. The film is then dried, whereby the protective layer is simultaneously dried, and when the film is wound up it is protected by the layer from being scratched. This mode of operation involves an essential simplification and greater security as compared with treatments of dry film hitherto in use which necessitated a further step thereby increasing the expenses and the opportunities of deleteriously affecting the film. The layer may be lapplied by drawing the film through the dispersion or solution or coating it with the latter. The bath may simultaneously contain a hardening agent, a softening agent, a smoothing agent or a wetting agent.
Such protective layers are of more importance for the v"emulsion side of cinematograph films; they make the sensitive layer insensitive to moisture, prevent by their smooth surface the settlement of dust and by the hardness of their own surface protect the picture from scratches and consequent dirtying of the picture window. Such a layer may, however, also be provided, particularly in the case of cinematograph films, on the rear side of the film; for this purpose the dispersion or colloid solution should contain an organic solvent or wetting agent in such proportion that the surface of the lm will be uniformly wetted by the liquid. 'Ihe addition of wetting agent may generally amount to 0.5 to 2 per cent calculated on the colloid, however, the invention is not llmfted to these quantities, the addition may be greater or smaller. The solution or dispersion applied to the emulsion layer may also contain a wetting agent, so that the same liquid will serve for simultaneously applying the protective layer to the two sides of the film. The invention is particularly useful for clnematograph films but is not limited thereto. It may also be applied with advantage to photographic plates or papers, particularly to the emulsion side thereof.
By treating a developed, fixed and partially dried paper picture with the dispersion or solution according to this invention, the brilliance of the picture is improved. v In the case of photographic papers with matt surface no lustre is produced if the drying of the paper is suitably conducted, the matt appearance being retained. Already dried paper pictures may be treated in one of the prescribed baths lf, for example, the surface is brushed with a wad of cotton-wool, wash leather or sponge saturated with the solution.
The `following examples illustrate the invention:
Example 2.-6.5 parts by volume of a dispersion of 25 per cent strength of a mixed polymerizate from polyvinyl-chloride and polyacrylic acid-methyl ester in water,
13.5 parts by volume of water.
Treatment is as described in Example 1.
Example 3.-120 parts of casein, swollen in 400 cc. of water 200 cc. of saturated solution of bora 1200 cc. of water 30 cc. of formaldehyde 150 cc. of water. Treatment is as described in Example l.
Example 4.-6.5 parts by volume of a dispersion of 25 per centstrength of polyacrylic acid-methyl ester in water 13.5 parts by volume of water 0.8 part by volume of glycerin. Treatment is as described in Example l.
Example 5.-6.5 parts by volume of a dispersion of 25 per centstrength of polyacrylic acid-methyl ester in water 8 parts by volume of methanol. Treatment is as described in Example l.
Example 6?.-120 grams of casein, swollen in 400 cc. of water, 200 cc. of cold saturated borax solution, 800 cc. of water 400 cc. of acetone 30 cc. of formaldehyde cc. of acetone. Treatment as described in Example 1.
Example 7.-- 650 cc. of a dispersion of 25 per cent strength of polyacrylic acid-methyl ester in water,
1350 cc. of water 2 grams of the sodium salt or" N-oleyl-taurine. Treatment as described in Example l.
Example 8.-1 part by volume of.an aqueous dispersion of 25 per cent strength of a mixed polymerizate from acrylic acid-methyl ester and vinyl acetate 4 parts by volume of water.
The moist picture is immersed in this bath and after draining excess of liquid from it, it is dried. in the case oi a dry picture the bath. is brushed over the surface with a wad of cotton-wool, sponge or wash leather, and the film allowed to dry. Y
Eample 9.-A developed, fixed and washed photographic plate is treated with one of the liquids prescribed in Examples l, 2, 3, 4 and li and is then dried. The procedure is the same as that described in Example 8 for the paper picture. Already dry plates may be treated in the same manner as the pictures on paper.
The single iigure of the accompanying drawing shows a photographic material in accordance with the invention. The support l is coated with an emulsion layer 2, and on the emulsion layer 2 there is provided the protective layer 3.
What I claim is:
l. A process of providing a photographic material having'a gelatin emulsion layer containing a developed, xed and Washed picture with a protective layer which comprises applying to said photographic material while it is still moist an aqueous dispersion of a highly polymeric com.- pound adapted to form a uniform lm with a hard surface and selected from the class consisting of natural and artificial organic colloids, and drying said material.
2. A process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises applying to said photographic material while it is still moist an aqueous dispersion of a highly polymeric compound adapted to form a uniform film with a hard surface and selected from the class consisting of natural and artificial organic colloids, and a wetting agent, and drying said material.
3. A process of providing a photographic material having a gelatin emulsion layer containing a developed, xed and washed picture with a protective layer which comprises applying to said photographic material While it is still moist an aqueous dispersion of a highly polymeric compound selected from the class consisting of polyacrylic acid esters, polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, and drying said material.
4. A process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises immerslng said photographic material while it is still moist into a dispersion of polyacryllc acid methyl ester in water and methanol, stripping the excess of liquid and drying said photographic material.
5. A process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a protective layer which comprises immersing said photographic material while it is still moist in casein, swollen in an aqueous solution of borax, acetone and formaldehyde, stripping the excess of liquid and drying said photographic material.
6. A process of providing a photographic material having a gelatin emulsion layer containing a developed, fixed and washed picture with a pro- /tective layer which comprises immersing said photographic material While it is still moist into a dispersion of polyacrylic acid methyl ester in wat-er to which the sodium salt of NwIeyltaurine has been added, stripping the excess of liquid, and drying said photographic materia.
7. ./i photographic material provided with a gelatin emulsion layer containing a developed, fixed and washed picture and a protective layer of a highly polymeric compound selected from the class consisting of polyacrylic acid esters, polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, said protective layer being applied to said developed, fixed and washed material while it is still moist.
8. A photographic materialprovided with a gelatin emulsion layer containing a developed,
fixed and washed picture and a protective layer of polyacrylic acid methyl ester, said protective layer being applied to said developed, fixed and washed material while it is still moist.
9. A photographic material provided with a gelatin emulsion layer containing a developed, xed and washed picture and a protective layer of casein, said protective layer being applied to said developed, fixed and washed material while it is still moist.
10. A photographic material provided with a gelatin emulsion layer containing a developed, fixed and washed picture and a protective layer of polyacrylic acid methyl ester and N-oleyltaurine, said protective layer being applied to said developed, iixed and washed material While it is still moist.
1l. 1n a process of forming a protective layer on a cinematographic lm having a gelatin emulsion layer containing a developed, fixed and washed picture after the developing, xing and washing, the step which comprises immersing said lm while it is still moist into an aqueous dispersion containing a compound selected from the class consisting of polyacrylic acid esters. polyvinyl ethers, polyvinyl alcohols, phenolformaldehyde resins, albumins, casein and mixtures thereof, and drying said material.
ADOLF JUNG.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2173480X | 1935-08-22 | ||
GB24957/35A GB466879A (en) | 1935-08-22 | 1935-09-07 | Improvements relating to photographic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
US2173480A true US2173480A (en) | 1939-09-19 |
Family
ID=78668999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US96575A Expired - Lifetime US2173480A (en) | 1935-08-22 | 1936-08-18 | Manufacture of photographic materials |
Country Status (3)
Country | Link |
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US (1) | US2173480A (en) |
FR (1) | FR809668A (en) |
GB (1) | GB466879A (en) |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452705A (en) * | 1944-03-03 | 1948-11-02 | Ilford Ltd | Package of photographic lightsensitive papers |
US2459266A (en) * | 1941-07-08 | 1949-01-18 | Photo Positive Corp | Article for reproducing drawings on blanks |
US2719791A (en) * | 1952-08-05 | 1955-10-04 | Polaroid Corp | Method of improving the stabilization of finished photographic prints by applying a liquid composition thereto |
US2748021A (en) * | 1953-06-24 | 1956-05-29 | Eastman Kodak Co | Solubilized benzal derivatives of alpha-methyl-alpha-phenyl hydrazines and ultraviolet radiation absorbing products thereof |
US2751315A (en) * | 1953-01-02 | 1956-06-19 | Eastman Kodak Co | Method of applying a protective coating over a photographic print |
US2794740A (en) * | 1954-02-24 | 1957-06-04 | Polaroid Corp | Methods for washing and protecting photographic silver images |
US2830900A (en) * | 1956-10-04 | 1958-04-15 | Polaroid Corp | Process of washing and protecting photographic silver images, and photographic products thereof |
US2855298A (en) * | 1954-02-24 | 1958-10-07 | Polaroid Corp | Methods for washing and protecting photographic silver images |
US2866705A (en) * | 1953-07-01 | 1958-12-30 | Polaroid Corp | Process of washing and protecting photographic silver images |
US2956877A (en) * | 1956-10-04 | 1960-10-18 | Polaroid Corp | Process of washing and protecting photographic silver images, and photographic products thereof |
US2984568A (en) * | 1956-11-26 | 1961-05-16 | Gevaert Photo Prod Nv | Photographic antihalation and protective layer comprising a nitrated styrene-maleic acid copolymer |
US2992100A (en) * | 1957-02-18 | 1961-07-11 | Keay Harold C Grant | Method of separating colour emulsion from acetate back colour transparencies |
US3025162A (en) * | 1958-05-28 | 1962-03-13 | Francis C Gilbert | Dimension stabilized fixed photographic type emulsion and a method for producing same |
US3136637A (en) * | 1958-11-26 | 1964-06-09 | Minnesota Mining & Mfg | Presensitized lithographic light-sensitive sheet construction |
US3279920A (en) * | 1963-01-17 | 1966-10-18 | Technical Operations Inc | Photographic developing process for producing positive or negative images |
US3295979A (en) * | 1963-04-17 | 1967-01-03 | Eastman Kodak Co | Friction reducing coatings for photographic elements |
US3425857A (en) * | 1962-08-20 | 1969-02-04 | Eastman Kodak Co | Method of making multilayer coatings containing a water resistant layer |
US3539344A (en) * | 1967-05-31 | 1970-11-10 | Eastman Kodak Co | Photographic elements having protective bead coatings |
US3642472A (en) * | 1967-08-30 | 1972-02-15 | Holotron Corp | Bleaching of holograms |
US5853926A (en) * | 1997-07-23 | 1998-12-29 | Eastman Kodak Company | Pre-coated, fused plastic particles as a protective overcoat for color photographic prints |
US5856051A (en) * | 1997-07-23 | 1999-01-05 | Eastman Kodak Company | Water-resistant protective overcoat for AgX photographic system |
US5875370A (en) * | 1997-11-06 | 1999-02-23 | Eastman Kodak Company | Coating apparatus having a removable coating module for applying a protective coating to photosensitive material |
US5905924A (en) * | 1997-11-06 | 1999-05-18 | Eastman Kodak Company | Replaceable cartridge coating assembly method of coating a photosensitive material using the same |
US5952130A (en) * | 1998-08-19 | 1999-09-14 | Eastman Kodak Company | Protective layer for gelatin based AGX photographic products |
US5984539A (en) * | 1997-11-06 | 1999-11-16 | Eastman Kodak Company | Method and apparatus of applying a solution of a predetermined viscosity to photosensitive material to form a protective coating thereon |
US5997993A (en) * | 1996-11-20 | 1999-12-07 | Polaroid Corporation | Protective overcoat useful for enhancing an article resistance to ambient humidity |
US6077648A (en) * | 1999-01-22 | 2000-06-20 | Eastman Kodak Company | Protective overcoat for photographic elements |
US6083676A (en) * | 1999-04-26 | 2000-07-04 | Eastman Kodak Company | Method for applying a protective overcoat to a photographic element using a fuser belt |
US6130014A (en) * | 1999-07-15 | 2000-10-10 | Eastman Kodak Company | Overcoat material as protecting layer for image recording materials |
US6165653A (en) * | 1999-07-15 | 2000-12-26 | Eastman Kodak Company | Protecting layer for gelatin based photographic products containing 1H-pyrazolo[1,5,-b][1,2,4]triazole-type magenta coupler |
US6171770B1 (en) | 1999-11-24 | 2001-01-09 | Jiann Chen | Method for applying a protective overcoat to a photographic element |
US6187517B1 (en) | 2000-06-09 | 2001-02-13 | Eastman Kodak Company | Enzyme-activated water-resistant protective overcoat for a photographic element |
US6197482B1 (en) | 1999-05-14 | 2001-03-06 | Eastman Kodak Company | Polymer overcoat for imaging elements |
US6221546B1 (en) | 1999-07-15 | 2001-04-24 | Eastman Kodak Company | Protecting layer for image recording materials |
US6232049B1 (en) | 1999-01-22 | 2001-05-15 | Eastman Kodak Company | Protective overcoat for photographic elements |
US6258517B1 (en) | 2000-06-06 | 2001-07-10 | Eastman Kodak Company | Imaged element with improved wet abrasion resistance |
US6274298B1 (en) | 2000-06-07 | 2001-08-14 | Eastman Kodak Company | Protective overcoat comprising polyester ionomers for photographic elements |
US6303184B1 (en) | 1999-05-14 | 2001-10-16 | Eastman Kodak Company | Method of forming a discontinuous polymer overcoat for imaging elements |
US6426167B2 (en) | 1999-07-15 | 2002-07-30 | Eastman Kodak Company | Water-resistant protective overcoat for image recording materials |
US6465165B2 (en) | 1999-05-14 | 2002-10-15 | Eastman Kodak Company | Scratch resistant-water resistant overcoat for photographic systems |
US6573011B1 (en) | 2001-12-21 | 2003-06-03 | Eastman Kodak Company | Label with curl and moisture resistant protective layer |
US6723402B2 (en) | 2001-12-21 | 2004-04-20 | Eastman Kodak Company | Protective layer for hydrophilic packaging material |
US20050031982A1 (en) * | 2003-08-04 | 2005-02-10 | Eastman Kodak Company | Imaging material with improved scratch resistance |
US20050031983A1 (en) * | 2003-08-04 | 2005-02-10 | Eastman Kodak Company | Imaging material with improved mechanical properties |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE937988C (en) * | 1940-10-16 | 1956-01-19 | Jur Paul Zschimmer Dr | Process for the production of protective layers for acetyl cellulose films |
-
1935
- 1935-09-07 GB GB24957/35A patent/GB466879A/en not_active Expired
-
1936
- 1936-08-18 US US96575A patent/US2173480A/en not_active Expired - Lifetime
- 1936-08-19 FR FR809668D patent/FR809668A/en not_active Expired
Cited By (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2459266A (en) * | 1941-07-08 | 1949-01-18 | Photo Positive Corp | Article for reproducing drawings on blanks |
US2452705A (en) * | 1944-03-03 | 1948-11-02 | Ilford Ltd | Package of photographic lightsensitive papers |
US2719791A (en) * | 1952-08-05 | 1955-10-04 | Polaroid Corp | Method of improving the stabilization of finished photographic prints by applying a liquid composition thereto |
US2751315A (en) * | 1953-01-02 | 1956-06-19 | Eastman Kodak Co | Method of applying a protective coating over a photographic print |
US2748021A (en) * | 1953-06-24 | 1956-05-29 | Eastman Kodak Co | Solubilized benzal derivatives of alpha-methyl-alpha-phenyl hydrazines and ultraviolet radiation absorbing products thereof |
US2866705A (en) * | 1953-07-01 | 1958-12-30 | Polaroid Corp | Process of washing and protecting photographic silver images |
US2794740A (en) * | 1954-02-24 | 1957-06-04 | Polaroid Corp | Methods for washing and protecting photographic silver images |
US2855298A (en) * | 1954-02-24 | 1958-10-07 | Polaroid Corp | Methods for washing and protecting photographic silver images |
US2830900A (en) * | 1956-10-04 | 1958-04-15 | Polaroid Corp | Process of washing and protecting photographic silver images, and photographic products thereof |
US2956877A (en) * | 1956-10-04 | 1960-10-18 | Polaroid Corp | Process of washing and protecting photographic silver images, and photographic products thereof |
US2984568A (en) * | 1956-11-26 | 1961-05-16 | Gevaert Photo Prod Nv | Photographic antihalation and protective layer comprising a nitrated styrene-maleic acid copolymer |
US2992100A (en) * | 1957-02-18 | 1961-07-11 | Keay Harold C Grant | Method of separating colour emulsion from acetate back colour transparencies |
US3025162A (en) * | 1958-05-28 | 1962-03-13 | Francis C Gilbert | Dimension stabilized fixed photographic type emulsion and a method for producing same |
US3136637A (en) * | 1958-11-26 | 1964-06-09 | Minnesota Mining & Mfg | Presensitized lithographic light-sensitive sheet construction |
US3425857A (en) * | 1962-08-20 | 1969-02-04 | Eastman Kodak Co | Method of making multilayer coatings containing a water resistant layer |
US3279920A (en) * | 1963-01-17 | 1966-10-18 | Technical Operations Inc | Photographic developing process for producing positive or negative images |
US3295979A (en) * | 1963-04-17 | 1967-01-03 | Eastman Kodak Co | Friction reducing coatings for photographic elements |
US3539344A (en) * | 1967-05-31 | 1970-11-10 | Eastman Kodak Co | Photographic elements having protective bead coatings |
US3642472A (en) * | 1967-08-30 | 1972-02-15 | Holotron Corp | Bleaching of holograms |
US5997993A (en) * | 1996-11-20 | 1999-12-07 | Polaroid Corporation | Protective overcoat useful for enhancing an article resistance to ambient humidity |
US5853926A (en) * | 1997-07-23 | 1998-12-29 | Eastman Kodak Company | Pre-coated, fused plastic particles as a protective overcoat for color photographic prints |
US5856051A (en) * | 1997-07-23 | 1999-01-05 | Eastman Kodak Company | Water-resistant protective overcoat for AgX photographic system |
US5984539A (en) * | 1997-11-06 | 1999-11-16 | Eastman Kodak Company | Method and apparatus of applying a solution of a predetermined viscosity to photosensitive material to form a protective coating thereon |
US5905924A (en) * | 1997-11-06 | 1999-05-18 | Eastman Kodak Company | Replaceable cartridge coating assembly method of coating a photosensitive material using the same |
US5875370A (en) * | 1997-11-06 | 1999-02-23 | Eastman Kodak Company | Coating apparatus having a removable coating module for applying a protective coating to photosensitive material |
US5952130A (en) * | 1998-08-19 | 1999-09-14 | Eastman Kodak Company | Protective layer for gelatin based AGX photographic products |
US6232049B1 (en) | 1999-01-22 | 2001-05-15 | Eastman Kodak Company | Protective overcoat for photographic elements |
US6077648A (en) * | 1999-01-22 | 2000-06-20 | Eastman Kodak Company | Protective overcoat for photographic elements |
US6153363A (en) * | 1999-01-22 | 2000-11-28 | Eastman Kodak Company | Protective overcoat comprising interpenetrating network for photographic elements |
US6083676A (en) * | 1999-04-26 | 2000-07-04 | Eastman Kodak Company | Method for applying a protective overcoat to a photographic element using a fuser belt |
US6303184B1 (en) | 1999-05-14 | 2001-10-16 | Eastman Kodak Company | Method of forming a discontinuous polymer overcoat for imaging elements |
US6300045B2 (en) | 1999-05-14 | 2001-10-09 | Eastman Kodak Company | Polymer overcoat for imaging elements |
US6465165B2 (en) | 1999-05-14 | 2002-10-15 | Eastman Kodak Company | Scratch resistant-water resistant overcoat for photographic systems |
US6197482B1 (en) | 1999-05-14 | 2001-03-06 | Eastman Kodak Company | Polymer overcoat for imaging elements |
US6165653A (en) * | 1999-07-15 | 2000-12-26 | Eastman Kodak Company | Protecting layer for gelatin based photographic products containing 1H-pyrazolo[1,5,-b][1,2,4]triazole-type magenta coupler |
US6221546B1 (en) | 1999-07-15 | 2001-04-24 | Eastman Kodak Company | Protecting layer for image recording materials |
US6130014A (en) * | 1999-07-15 | 2000-10-10 | Eastman Kodak Company | Overcoat material as protecting layer for image recording materials |
US6426167B2 (en) | 1999-07-15 | 2002-07-30 | Eastman Kodak Company | Water-resistant protective overcoat for image recording materials |
US6171770B1 (en) | 1999-11-24 | 2001-01-09 | Jiann Chen | Method for applying a protective overcoat to a photographic element |
US6258517B1 (en) | 2000-06-06 | 2001-07-10 | Eastman Kodak Company | Imaged element with improved wet abrasion resistance |
US6428948B2 (en) | 2000-06-06 | 2002-08-06 | Eastman Kodak Company | Imaged element with improved wet abrasion resistance |
US6274298B1 (en) | 2000-06-07 | 2001-08-14 | Eastman Kodak Company | Protective overcoat comprising polyester ionomers for photographic elements |
US6187517B1 (en) | 2000-06-09 | 2001-02-13 | Eastman Kodak Company | Enzyme-activated water-resistant protective overcoat for a photographic element |
US6573011B1 (en) | 2001-12-21 | 2003-06-03 | Eastman Kodak Company | Label with curl and moisture resistant protective layer |
US6723402B2 (en) | 2001-12-21 | 2004-04-20 | Eastman Kodak Company | Protective layer for hydrophilic packaging material |
US20050031982A1 (en) * | 2003-08-04 | 2005-02-10 | Eastman Kodak Company | Imaging material with improved scratch resistance |
US20050031983A1 (en) * | 2003-08-04 | 2005-02-10 | Eastman Kodak Company | Imaging material with improved mechanical properties |
US6946240B2 (en) | 2003-08-04 | 2005-09-20 | Eastman Kodak Company | Imaging material with improved scratch resistance |
US7074551B2 (en) | 2003-08-04 | 2006-07-11 | Eastman Kodak Company | Imaging material with improved mechanical properties |
Also Published As
Publication number | Publication date |
---|---|
FR809668A (en) | 1937-03-08 |
GB466879A (en) | 1937-06-07 |
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