US2143791A - Photographic stripping film - Google Patents

Photographic stripping film Download PDF

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Publication number
US2143791A
US2143791A US80127A US8012736A US2143791A US 2143791 A US2143791 A US 2143791A US 80127 A US80127 A US 80127A US 8012736 A US8012736 A US 8012736A US 2143791 A US2143791 A US 2143791A
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US
United States
Prior art keywords
layer
support
water
cellulose
cellulose ester
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
US80127A
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English (en)
Inventor
Gale F Nadeau
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US80127A priority Critical patent/US2143791A/en
Priority to FR826929D priority patent/FR826929A/fr
Priority to DE1937K0146577 priority patent/DE687950C/de
Priority to GB13789/37A priority patent/GB483609A/en
Priority to US188543A priority patent/US2140648A/en
Application granted granted Critical
Publication of US2143791A publication Critical patent/US2143791A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • 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
    • G03C1/805—Photosensitive materials characterised by the base or auxiliary layers characterised by stripping layers or stripping means

Definitions

  • FIG. 2 is a sectional view of a similar type of ping film, that is, film in which the sensitive layer film having cellulose ester and gelatin layers apls carried on a temporary support from which it plied to the reverse side of the paper support. may be removed, together with a permanent sup- Fig. 3 is a sectional view of a stripping film in port layer, after exposure. I which a layer of synthetic resin is applied be- 5 A photographicstripping film 01' this type is tween the paper support and the adhesive layer. described, for example, in US. Patent No.
  • Fig. 4 is a sectional view of a stripping film in 476 of Fordyce et 9.1. These films are used in the which a layer 01 a water-soluble synthetic resin photo-engraving and related arts where an image is applied between the paper support and the perlo is to be recorded and after development and fix manent'emulsion support. log, removed from the temporary support and Fig. 5 is a sectional view oi a film similar to aifixed to a transparent plate for the purpose of that shown in Fig. 1, but having an anti-halatlon making photo-engraving plates.
  • the emulsions dye in the baryta coating of the paper temporary used are usually a type whichgive an image havsupport.
  • FIG. 6 is a sectional. view of a film similar to l5 culty encountered in this type of film is the presthat shown in Fig. 1 but having a transparent ence 01 areas of varying sensitivity. produced by cellulose ester temporary support and an antithe lack of uniformity of overlying layers or by halation backing layer. a
  • This solvent may be a mixture of 85% 30 film in which the sensitive emulsion does not show methyl alcohol and 15% acetone, or pure acetone, areas of varying sensitivity. methyl Cellosolve or other solvent.
  • a layer ester layer ii there is applied a thin gelatin subof cellulose ester or 'syntheticresin to the temlayer I
  • the composition of h a in solution 36 porary support and coating the adhesive over from which this layer is applied may be as 101- this cellulose ester or synthetic resin layer.' 122- lows:
  • the adhesive layer II is' pplied n x Thi the adhesive layer, this absorption th adh layer may consistoi' a 10 .to 15% aqueous solution 45 sive by the paper is prevented, with th e ult oi water-soluble glue or a mixture of 8%1iquld that very muchless'adhesive need be used and a glue and 8% glycerine in 84% of water.
  • the perunli'orm coating is obtained.
  • manent support layer I4 is then applied over the In the accompanying drawing whlch'fol'mga, adhesive layer.
  • This permanent support layer 50 part of the' present invention I have shown a nummay consist of cellulose nitrate or acetate or other ber of enlarged sectional views of stripping film cellulose ester. I preferv to use, however, a cellumade according to my invention. i lose nitrate" of low nitrogen content and high al- Fig. 1 is a sectional view of a stripping film cohol solubility. A cellulose nitrate of this comhav'inga layer 0! cellulose ester between the paper position should contain approximately 9 to 12% "supportaudtheadhesi'velayer.
  • hol 30% to 100% and a viscosity of 2 to 5 seconds by the dropping ball method.
  • This cellulose nitrate should be water permeable in order to permit the water of the developing bath or other treatment baths to reach and penetrate the adhesive layer. In order to increase this water permeability, it is desirable to add certain materials, such as glyceryl Bori-borate (sold by 'Glyco Products Company, New York, N. Y.),
  • Viscosity by the dropping ball method referred to above is determined as follows:
  • the paper support i0 is coated on one side'rwith the layers II, I2, I3, I4, I5 and I6 as described above.
  • a a. cellulose ester, such as nitrate or acetate which may have the same composition as the layer II.
  • gelatin layer I8 The purpose of these layers is to prevent curling of the element prior to or during exposure and to prevent water absorption by Fig. 3 a layer of a synthetic resin which is not easily attacked by water is substituted for the cellulose ester layerapplied to the paper support.
  • the-paper support I0 is coated with a layer of a synthetic resin I9. This is applied from a 3 to 10% solution of the resin in an appropriate solvent, such as ethylene chloride, acetone, or a mixture of ethylene chloride and methyl alcohol or acetone and methyl alcohol.
  • a thin protective layer 20 of a cellulose ester such as cellulose nitrate. This layer is applied merely to prevent the resin layer I9 from sticking in the 1,586,803 and 1,710,825.
  • a further type of resin which may be used is the polyvinyl acetal type.-
  • These resins are condensation productsot partially or completely hydrolyzed polyvinyl acetate in water.
  • aldehyde such as formaldehyde, acetaldehyde,'or butyraldehyde and are known as poly vinyl acetals. They are sold under various tradenames such as Formvar" and Alvar, the prep-v 351,082 and in U. S. Patent Nos. 1,955,068 and 1,990,399.
  • a still further type of resin which I may use are the alkyd resins, which are condensation products of. a polybasic acid and a polyhydroxy alcohol.
  • An example of this type of resin is Glyptal, which is a condensation product of glycerine and phthalic acid or phthalic anhydride.
  • a still further type of resin is the group known as the Santolites which are condensatio'n products of formaldehyde with aromaticisulfonamides.
  • the adhesive layer may be partially or completely eliminated and in its place a water-soluble resin, such as polyvinyl alcohol applied to the paper support.
  • a film of this type is shown-in Fig. 4.
  • the paper support I0 is coated with a layer 2i of polyvinyl alcohol in a 3 to 10% solution in water. The concentration of this solution will be determined by the method of application and by the speed of the coating operation.
  • a thin layer "22 of cellulose nitrate is applied over the polyvinyl alcohol layer". and is followed by a heavier layer 23 of cellulose nitrate or of cellulose acetate or other cellulose ester which constltutes the permanent support. This is followed by the sublayer I! and emulsion layer I6.
  • the film may contain an anti-halation dye to prevent reflection of light from the paper support.
  • the paper support I 0 has a baryta coating 24 containing the anti-halation dye.
  • This anti-halation layer is coated with the cellulose ester layer II followed by the gelatin sub-layer I2, the adhesive layer I3, the permanent support layer I4, the
  • gelatin sub-layer I5 and the emulsion layer I6 are gelatin sub-layer I5 and the emulsion layer I6.
  • cellulose ester intermediate layer used according to my invention to asupport layer of transparent material, such as a cellulose ester, instead of to the paper support;
  • asupport layer of transparent material such as a cellulose ester
  • the cellulose acetate temporary support layer 25 is coated with a cellu lose nitrate or acetate layer II and this is followed by the gelatin sub-layer I2, the adhesive layer I3, the permanent support layer II, the
  • the transparent temporary support 25 there may be coated an anti-halation layer 21 of gelatin containing manganese dioxide or other suitable anti-halation material, coated over a subbing layer 26 of cellulose nitrate or other cellulose ester.
  • This anti-halation baclaing may, o course, be omitted.
  • the advantages of a transparent temporary support layer are that the operator may view the negative during proccasing and determine the extent of the development.
  • a film having a temporary s pport layer of a cellulose ester is light in wei t and not liable to breakage prior to use.
  • a photographic stripping film having a cellulose layer between the temporary support and the adhesive layer has a number of important advantages. Such a film is free from emulsion diificulties, such as lines and mottle and also may be stripped from the temporary support more easily and quickly than with films used hitherto. Less adhesivemay be used and there is a consequent decrease in the stripping time since less water must diffuse through the layers to dissolve the reduced quantity of-adhesive.
  • A'photographic stripping film comprising a temporary support, a water-permeable cellulose ester permanent supporthaving a sensitive emulslon layer thereon, and between said temporary suhlwrt and said cellulose ester permanent support, separate layers of a water-insoluble synthetic organic colloidal material and a watersoluble adhesive, the former layer being adjacent the temporary support, and said layers adhering temporary support, a water-permeable cellulose ester permanent support having a sensitive emulsion layer thereon, and between said-temporary support and said cellulose ester permanent support, separate layers of synthetic resin and a wa- 5 ter-soluble adhesive, the former layer being adjacent the temporary support, and said layers adhering firmly in the dry state.
  • a photographic stripping film comprising a temporary support, a water-permeable cellulose ester permanent support having a sensitive emulsion layer thereon, and between said temporary support and said cellulose ester permanent support, separate layers of cellulose nitrate and a water-soluble adhesive, the former layer being adjacent the temporary support, and said layers adhering firmly in the dry state.
  • a photographic stripping film comprising a paper support, a cellulose ester layer on each side of said paper support, and in order on one of said cellulose ester layers, a water-soluble adhesive layer, a transparent water-permeable permanent support layer, and a photographic emulsion layer, all of said layers adhering firmly in the dry state.
  • A' photographic stripping film comprising a paper support, a cellulose nitrate layer on each side of said paper support, and in order on one of said cellulose nitrate layers, a water-soluble adhesive layer, a transparent water-permeable permanent support layer, and a photographic emulsion layer, all of said layers adhering firmly in the dry state. 4
  • a photographic stripping film comprising'a paper support, a cellulose ester and gelatin layer in order on each side of said paper support, and in order on one of said gelatin layers, a watersoluble adhesive layer, a transparent water-permeable permanent support layer, and a photographic emulsion layer, all of said layers adhering firmly in the dry state.
  • a photographic stripping film comprising a temporary support, a water permeable cellulose ester permanent support having a sensitive emulsion layer thereon, and between said temporary support and said cellulose esterpermanent support, separate layers of a water-insoluble cellulose ester and 'a water-soluble. adhesive, the former layer being adjacent the temporary support, and said layers adhering firmly in the dry state.
  • a photographic strippingfilm comprising a paper support, on one side of said paper support successive layers of cellulose ester, water-soluble adhesive, transparent water-permeable cellulose ester permanent support, and sensitive emulsion, and on the opposite side of said paper support, a 5; layer of an organic acid ester of cellulose.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Printing Plates And Materials Therefor (AREA)
US80127A 1936-05-16 1936-05-16 Photographic stripping film Expired - Lifetime US2143791A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US80127A US2143791A (en) 1936-05-16 1936-05-16 Photographic stripping film
FR826929D FR826929A (fr) 1936-05-16 1937-05-15 Film photographique pelliculable
DE1937K0146577 DE687950C (de) 1936-05-16 1937-05-16 Photographischer Abziehfilm
GB13789/37A GB483609A (en) 1936-05-16 1937-05-18 Improvements relating to photographic stripping film
US188543A US2140648A (en) 1936-05-16 1938-02-03 Photographic stripping film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80127A US2143791A (en) 1936-05-16 1936-05-16 Photographic stripping film

Publications (1)

Publication Number Publication Date
US2143791A true US2143791A (en) 1939-01-10

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Family Applications (1)

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US80127A Expired - Lifetime US2143791A (en) 1936-05-16 1936-05-16 Photographic stripping film

Country Status (4)

Country Link
US (1) US2143791A (fr)
DE (1) DE687950C (fr)
FR (1) FR826929A (fr)
GB (1) GB483609A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418303A (en) * 1941-07-12 1947-04-01 Ralph G Luff Laminated photographic material and process for producing the same
US2459266A (en) * 1941-07-08 1949-01-18 Photo Positive Corp Article for reproducing drawings on blanks
US2602741A (en) * 1945-11-01 1952-07-08 Grinten Chem L V D Sensitized sheets for screen reflectography
US2670288A (en) * 1951-11-30 1954-02-23 Eastman Kodak Co Photographic tracing cloth
US2678274A (en) * 1949-02-19 1954-05-11 Polaroid Corp Masked photographic product for receiving a transfer image
US2993793A (en) * 1954-02-16 1961-07-25 Gevaert Photo Prod Nv Manufacture of noncurling multilayer material
US3091534A (en) * 1960-02-09 1963-05-28 Eastman Kodak Co Stripping film for improved emulsion
US3149973A (en) * 1961-11-02 1964-09-22 Gen Aniline & Film Corp Wet and dry stripping film
US3245792A (en) * 1959-10-03 1966-04-12 Azoplate Corp Light sensitive polycarbonamide coatings for screen printing
US3415644A (en) * 1967-03-10 1968-12-10 Polaroid Corp Novel photographic products and processes
US3518087A (en) * 1967-04-26 1970-06-30 Eastman Kodak Co Gravure etch resist film
US3630739A (en) * 1969-05-01 1971-12-28 Minnesota Mining & Mfg Antihalation layer comprising gelatin, tetravolent manganese, and water-soluble polymeric hydrolyzate
US20050249932A1 (en) * 2004-05-04 2005-11-10 Yongcai Wang Polarizing plate laminated with an improved glue composition and a method of manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564233A (fr) * 1957-01-28

Cited By (16)

* Cited by examiner, † Cited by third party
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
US2418303A (en) * 1941-07-12 1947-04-01 Ralph G Luff Laminated photographic material and process for producing the same
US2602741A (en) * 1945-11-01 1952-07-08 Grinten Chem L V D Sensitized sheets for screen reflectography
US2678274A (en) * 1949-02-19 1954-05-11 Polaroid Corp Masked photographic product for receiving a transfer image
US2670288A (en) * 1951-11-30 1954-02-23 Eastman Kodak Co Photographic tracing cloth
US2993793A (en) * 1954-02-16 1961-07-25 Gevaert Photo Prod Nv Manufacture of noncurling multilayer material
US3245792A (en) * 1959-10-03 1966-04-12 Azoplate Corp Light sensitive polycarbonamide coatings for screen printing
US3091534A (en) * 1960-02-09 1963-05-28 Eastman Kodak Co Stripping film for improved emulsion
US3149973A (en) * 1961-11-02 1964-09-22 Gen Aniline & Film Corp Wet and dry stripping film
US3415644A (en) * 1967-03-10 1968-12-10 Polaroid Corp Novel photographic products and processes
US3518087A (en) * 1967-04-26 1970-06-30 Eastman Kodak Co Gravure etch resist film
US3630739A (en) * 1969-05-01 1971-12-28 Minnesota Mining & Mfg Antihalation layer comprising gelatin, tetravolent manganese, and water-soluble polymeric hydrolyzate
US20050249932A1 (en) * 2004-05-04 2005-11-10 Yongcai Wang Polarizing plate laminated with an improved glue composition and a method of manufacturing the same
WO2005111665A2 (fr) * 2004-05-04 2005-11-24 Eastman Kodak Company Plaque de polarisation laminee au moyen d'une composition de colle amelioree
WO2005111665A3 (fr) * 2004-05-04 2006-06-08 Eastman Kodak Co Plaque de polarisation laminee au moyen d'une composition de colle amelioree
US7399376B2 (en) 2004-05-04 2008-07-15 Eastman Kodak Company Polarizing plate laminated with an improved glue composition and a method of manufacturing the same

Also Published As

Publication number Publication date
FR826929A (fr) 1938-04-13
DE687950C (de) 1940-02-09
GB483609A (en) 1938-04-22

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