US3260602A - Resin laminated paper for photographic application - Google Patents

Resin laminated paper for photographic application Download PDF

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Publication number
US3260602A
US3260602A US164315A US16431562A US3260602A US 3260602 A US3260602 A US 3260602A US 164315 A US164315 A US 164315A US 16431562 A US16431562 A US 16431562A US 3260602 A US3260602 A US 3260602A
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US
United States
Prior art keywords
polyethylene
paper
photographic
glassine
resin laminated
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
US164315A
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English (en)
Inventor
George F L Wood
Douglas C Joseph
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
Priority to BE626722D priority Critical patent/BE626722A/xx
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US164315A priority patent/US3260602A/en
Priority to FR920247A priority patent/FR1342605A/fr
Priority to GB347/63A priority patent/GB1030411A/en
Application granted granted Critical
Publication of US3260602A publication Critical patent/US3260602A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • 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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper

Definitions

  • This invention concerns a photographic paper base which is water resistant, dimensionally stable and translucent, more particularly, a laminated-paper polyethylcue-composite photographic paper base.
  • photographic paper which is transparent for use with graphic arts processes and for use with diazo processes.
  • the materials which are presently available are prepared with a translucent or transparent support such as glassine or transparentized paper which has been treated with various materials such as ralpha methyl styrene, cellulose esters and the like.
  • a translucent or transparent support such as glassine or transparentized paper which has been treated with various materials such as ralpha methyl styrene, cellulose esters and the like.
  • many of these transparent bases are not sufficiently resistant to dimensional changes due to immersion in the processing solution, changes in relative humidity, and the like.
  • Attempts to improve the dimensional stability of commercially available transparent paper have, in many cases, resulted in a decrease in the transparency.
  • the resulting product has been incompatible with photographic emulsions, has not been sufficiently stiff for satisfactory handling or has been too expensive to provide a commercial photographic element.
  • One object of this invention is to provide a transparent or translucent photographic base which is water resistant and dimensionally stable. Another object is to provide a paper base which has sufficient stiffness, dimensional stability and translucency necessary for a photographic intermediate used for making additional copies such as used in the diazo systems. A further object is to provide a laminated photographic paper which is photographically inert, which is water resistant, and which is inexpensive to manufacture.
  • the above objects are obtained by adhering two sheets of glassine paper together by means of a polyethylene film followed by coating polyethylene on the exterior surfaces of the glassine sheets.
  • the glassine paper is obtained by well-known methods and may have a weight of 35 lbs./ 1000 sq. ft.
  • the thickness of the polyethylene film between the two sheets of glassine paper may be from .4-1.5 mil in thickness, and the thickness on the exterior surfaces of the polyethylene coatings may be from 0.4-1.0 mil in thickness.
  • the polyethylene coatings may be applied by conventional methods, but in our preferred embodiment we extrude the molten polyethylene between the two sheets of glassine paper and coat the polyethylene on the exterior surfaces by extrusion coating applications. It will be clear that other methods such as solvent, dispersion, or the like may be used for coating the polyethylene.
  • the composite of two glassine sheets having the polyethylene adhering them together may also be obtained by coating one sheet and contacting it against the other using heat and/ or pressure.
  • polyethylene Various types may be employed, but our preferred embodiment is low density, extrusion coating grade. Medium and high density polyethylene have also been used successfully.
  • a sectional view of one embodiment of our invention is illustrated by the drawing.
  • a light-sensitive silver halide emulsion 1 is coated on the top layer of a series of substrates in combination comprising first a polyethylene substrate 2, glassine paper 3, polyethylene 4, glassine paper 5, polyethylene 6, and having a backcoat 7.
  • Another embodiment of our invention may be obtained by omitting the backcoat.
  • Example 1 A 4 lbs/1000 sq. ft. glassine paper was laminated to another sheet of similar glassine paper with a 1 mil lowdensity polyethylene film on a conventional extrusion coating machine by extruding the polyethylene into the nip as the 2 sheets were passed between a pair of rollers. This laminate was then coated on both sides with polyethylene. One of the polyethylene coated surfaces was treated with high energy electron bombardment for emulsion adhesion. A high contrast projection speed light sensitive silver halide was then coated over the treated surface.
  • the sensitized product has a high degree of wet stiifness, dimensional stability, and drying rate as compared to customary photographic paper base, under normal processing and operating conditions.
  • Example 2 A product was prepared as in Example 1 except that a high density polyethylene was used instead of low density polyethylene for the lamination and surface coatings. The product had improved stiffness and water resistance.
  • Example 3 A 5 lbs/1000 sq. ft. glassine sheet is laminated to a similar sheet with a low viscosity, high melt index polyethylene by applying a hot melt coating to one sheet of the glassine paper and contacting the coating paper against the second sheet of glassine paper. While the coating is in a heated condition, pressure is applied by means of heated rollers through which the laminate is passed. The laminate is then extrusion coated with 2 lbs./ 1000 sq. ft. of high density polyethylene on each side. After an electron bombardment treatment, the treated surface is coated with a light-sensitive silver halide emulsion and has satisfactory stiffness, water resistance, and dimensional stability.
  • Example 4 A product was prepared the same as in Example 1 except that a washoff type of photographic emulsion was used for sensitizing the paper base and to obtain a direct positive image.
  • Example 5 Products were prepared as in Examples 1 and 3 except that both sides of the laminate were treated using electron bombardment and an antihalation, antistatic, anticurl coating was applied on the side opposite the emul- Mn was dispersed in the gelatin to produce a dark 'brown color that gives .5 to .7 density to blue light.
  • the MnO is dispersed in such a form as to react with the sodium thiosulfate of the fixing solution to produce a colorless complex.
  • the gelatin was applied and hardened in the same manner as the gelatin of the silver emulsion on the opposite side in an attempt to produce a force equal and opposite to the gelatin of the emulsion.
  • a high contrast, projection speed chlorobrornide light-sensitive silver emulsion we use a high contrast, projection speed chlorobrornide light-sensitive silver emulsion; however, other light-sensitive silver halide emulsions may be used depending upon the purpose for which the product is to be used. For instance, both black and White emulsions may be used including silver iodide emulsions, silver chloride emulsions, silver bromide emulsions, and emulsions which contain mixtures of these light sensitive silver salts.
  • Photographic paper prepared according to our invention is free from curl, has a high degree of translucency and is free from such defects as staining, edge penetration, and the like.
  • a photographic paper base comprising in combination two sheets of glassine paper adhered to each other by a film of polyethylene and having a polyethylene film coated on the exterior surfaces of the glassine paper.
  • a photographic paper base comprising two sheets of 35 lbs./ 1000 sq. ft. gl'asisne paper adhered to each other by a layer of .4-1.5 mil thick polyethylene and having 0.3-1 mil thick polyethylene coated on the exterior surfaces of the glassine paper.
  • a photographic paper as described in claim 2 having coated thereon :a light-sensitive silver halide emulsion.
  • a photographic paper as described in claim 3 having a backcoat coated on the side opposite the silver halide emulsion.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
US164315A 1962-01-04 1962-01-04 Resin laminated paper for photographic application Expired - Lifetime US3260602A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE626722D BE626722A (en&quot) 1962-01-04
US164315A US3260602A (en) 1962-01-04 1962-01-04 Resin laminated paper for photographic application
FR920247A FR1342605A (fr) 1962-01-04 1963-01-02 Nouveau papier photographique et procédé pour sa fabrication
GB347/63A GB1030411A (en) 1962-01-04 1963-01-03 Sensitive photographic paper and paper base therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US164315A US3260602A (en) 1962-01-04 1962-01-04 Resin laminated paper for photographic application

Publications (1)

Publication Number Publication Date
US3260602A true US3260602A (en) 1966-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US164315A Expired - Lifetime US3260602A (en) 1962-01-04 1962-01-04 Resin laminated paper for photographic application

Country Status (3)

Country Link
US (1) US3260602A (en&quot)
BE (1) BE626722A (en&quot)
GB (1) GB1030411A (en&quot)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411908A (en) * 1964-03-10 1968-11-19 Eastman Kodak Co Photographic paper base
US3549406A (en) * 1968-04-26 1970-12-22 Eastman Kodak Co Process of coating polymer surfaces activated by corona discharge
JPS61205935A (ja) * 1985-03-11 1986-09-12 Fuji Photo Film Co Ltd 画像形成方法
US5212053A (en) * 1992-02-07 1993-05-18 Eastman Kodak Company Translucent display paper for rear illumination

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875055A (en) * 1956-10-18 1959-02-24 Eastman Kodak Co Photographic paper having reduced processing curl
US2930727A (en) * 1958-03-17 1960-03-29 Baranyi Josef Rudolf Aminoplastic resin impregnated laminates
US2991208A (en) * 1958-05-01 1961-07-04 Monsanto Chemicals Laminated structures
US3021214A (en) * 1958-03-17 1962-02-13 Eastman Kodak Co Waterproof paper negative
US3037862A (en) * 1958-07-22 1962-06-05 Kalvar Corp Crystalline polyolefin base for photosensitive material
US3169865A (en) * 1960-07-29 1965-02-16 Eastman Kodak Co Zirconia subbed photographic paper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875055A (en) * 1956-10-18 1959-02-24 Eastman Kodak Co Photographic paper having reduced processing curl
US2930727A (en) * 1958-03-17 1960-03-29 Baranyi Josef Rudolf Aminoplastic resin impregnated laminates
US3021214A (en) * 1958-03-17 1962-02-13 Eastman Kodak Co Waterproof paper negative
US2991208A (en) * 1958-05-01 1961-07-04 Monsanto Chemicals Laminated structures
US3037862A (en) * 1958-07-22 1962-06-05 Kalvar Corp Crystalline polyolefin base for photosensitive material
US3169865A (en) * 1960-07-29 1965-02-16 Eastman Kodak Co Zirconia subbed photographic paper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411908A (en) * 1964-03-10 1968-11-19 Eastman Kodak Co Photographic paper base
US3549406A (en) * 1968-04-26 1970-12-22 Eastman Kodak Co Process of coating polymer surfaces activated by corona discharge
JPS61205935A (ja) * 1985-03-11 1986-09-12 Fuji Photo Film Co Ltd 画像形成方法
US5212053A (en) * 1992-02-07 1993-05-18 Eastman Kodak Company Translucent display paper for rear illumination

Also Published As

Publication number Publication date
GB1030411A (en) 1966-05-25
BE626722A (en&quot)

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