GB1242664A - Manufacture of photographic material - Google Patents

Manufacture of photographic material

Info

Publication number
GB1242664A
GB1242664A GB23555/69A GB2355569A GB1242664A GB 1242664 A GB1242664 A GB 1242664A GB 23555/69 A GB23555/69 A GB 23555/69A GB 2355569 A GB2355569 A GB 2355569A GB 1242664 A GB1242664 A GB 1242664A
Authority
GB
United Kingdom
Prior art keywords
web
earthed
passed
screen
electrode
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
Application number
GB23555/69A
Inventor
William Carroll Kerr
Thomas Gerald Hanley
Charles Russell Witmer Jr
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
Publication of GB1242664A publication Critical patent/GB1242664A/en
Expired legal-status Critical Current

Links

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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79—Macromolecular coatings or impregnations therefor, e.g. varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/9165—Electrostatic pinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • 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
    • G03C1/915—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means using mechanical or physical means therefor, e.g. corona

Abstract

1,242,664. Electric-discharge treatment of polymeric webs. EASTMAN KODAK CO. 8 May, 1969 [13 May, 1968], No. 23555/69. Heading D1L. [Also in Disivions B2, G2 and H1] The surface of a synthetic organic polymeric web, e.g. polyethylene terephthalate film or polyethylene coated paper, is subjected to an a.c. corona discharge and thereafter the irregularities in the electrostatic charge on the surface are smoothed before coating with an aqueous composition, e.g. a photographic layer. As disclosed the web is passed through apparatus comprising a dielectric - coated earthed roll over which the web passes and near which are electrode(s) at, e.g. 50kV (peak to peak), 60Hz. The surface charge so obtained is smoothed by (i) a metal roll at, e.g. 5-50 kV d.c. over which the treated surface of the web is passed and near which are earthed electrodes and/or (ii) an ion generator, through the ion cloud of whch the web is passed. An earthed metal roll may be provided after the d.c. field, the latter suitably being such as to produce a corona discharge. Treatment improves adhesion of the coating. An ion generator comprises a metallic backing electrode 20, spaced electrode wires 22 supported on a frame 24 and a perforated control screen 21 located below the wires. In use, a high voltage a.c. is applied across electrodes 20, 22 while screen 21 is earthed or held at a selected potential. Some of the ions produced pass through the screen onto the charged surface of the web 10 which passes below it.
GB23555/69A 1968-05-13 1969-05-08 Manufacture of photographic material Expired GB1242664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72864168A 1968-05-13 1968-05-13

Publications (1)

Publication Number Publication Date
GB1242664A true GB1242664A (en) 1971-08-11

Family

ID=24927675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23555/69A Expired GB1242664A (en) 1968-05-13 1969-05-08 Manufacture of photographic material

Country Status (6)

Country Link
US (1) US3531314A (en)
JP (1) JPS4937841B1 (en)
BE (1) BE733009A (en)
CA (1) CA959451A (en)
FR (1) FR2008405A1 (en)
GB (1) GB1242664A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA949398A (en) * 1970-10-07 1974-06-18 Sumitaka Tatsuta Method for production of photographic material
US3729648A (en) * 1971-09-30 1973-04-24 Eastman Kodak Co Method and apparatus for treating a web
US4109045A (en) * 1972-11-06 1978-08-22 Canon Kabushiki Kaisha Information recording medium
US3928678A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a substrate
US3928679A (en) * 1973-01-26 1975-12-23 Eastman Kodak Co Method and apparatus for coating a multiple number of layers onto a substrate
DE2308711C2 (en) * 1973-02-22 1983-08-04 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück Process for the production of a polyolefin-coated photographic writing support with a crystalline layer
GB1447219A (en) * 1974-04-27 1976-08-25 Softal Elektronik Gmbh Apparatus for the treatment of thin sheet with a corona discharge
US4218493A (en) * 1977-12-02 1980-08-19 The Continental Group, Inc. Electrostatic repair coating
FR2477950A1 (en) * 1980-03-11 1981-09-18 Electricite De France METHOD AND DEVICE FOR PROCESSING STRIPS OF POLYMERIC MATERIAL BY ELECTRIC SHOCK
DE3134615A1 (en) * 1981-09-01 1983-03-10 Agfa-Gevaert Ag, 5090 Leverkusen METHOD AND DEVICE FOR PRE-TREATING PHOTOGRAPHIC CARRIER MATERIALS
US4517143A (en) * 1983-10-03 1985-05-14 Polaroid Corporation Method and apparatus for uniformly charging a moving web
JPS643113U (en) * 1987-06-25 1989-01-10
DE3774704D1 (en) * 1987-07-21 1992-01-02 Agfa Gevaert Nv COATING PROCESS.
US4933237A (en) * 1989-02-17 1990-06-12 Eastman Kodak Company Paint coated sheet material with adhesion promoting composition
US5425980A (en) * 1994-02-22 1995-06-20 Eastman Kodak Company Use of glow discharge treatment to promote adhesion of aqueous coats to substrate
US5558843A (en) * 1994-09-01 1996-09-24 Eastman Kodak Company Near atmospheric pressure treatment of polymers using helium discharges
US5618659A (en) * 1995-03-01 1997-04-08 Eastman Kodak Company Photographic element containing a nitrogen glow-discharge treated polyester substrate
US5714308A (en) 1996-02-13 1998-02-03 Eastman Kodak Company Atmospheric pressure glow discharge treatment of polymeric supports to promote adhesion for photographic applications
US5789145A (en) * 1996-07-23 1998-08-04 Eastman Kodak Company Atmospheric pressure glow discharge treatment of base material for photographic applications
US6517909B1 (en) 1998-12-16 2003-02-11 Eastman Kodak Company Method for using a patterned backing roller for curtain coating a liquid composition to a web
US6368675B1 (en) 2000-04-06 2002-04-09 3M Innovative Properties Company Electrostatically assisted coating method and apparatus with focused electrode field
US6475572B2 (en) 2000-04-06 2002-11-05 3M Innovative Properties Company Electrostatically assisted coating method with focused web-borne charges
US6534114B2 (en) * 2001-02-28 2003-03-18 Eastman Kodak Company Coating method for modifying adhesion of thin films to substrates
ATE517761T1 (en) * 2002-03-02 2011-08-15 Polymeric Converting Llc CARD FORMS HAVING A SEPARABLE SEPARATING SURFACE WITH AREAS OF DIFFERENT ADHESIVE POWER AND A METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935418A (en) * 1953-06-03 1960-05-03 Olin Mathieson Method for treating preformed polyethylene with an electrical glow discharge
US2864756A (en) * 1955-06-08 1958-12-16 Modern Plastic Machinery Corp Method and apparatus for the treatment of plastic materials
US2802085A (en) * 1955-11-01 1957-08-06 Modern Plastic Machinery Corp Apparatus for the treatment of plastic materials
NL207749A (en) * 1956-01-30
US2980834A (en) * 1956-04-26 1961-04-18 Bruning Charles Co Inc Charging of photo-conductive insulating material
US2879396A (en) * 1957-05-03 1959-03-24 Plastics-treating apparatus
US2939956A (en) * 1958-06-02 1960-06-07 Milprint Inc Method and apparatus for treating plastic materials
GB1042049A (en) * 1963-11-12 1966-09-07 Ici Ltd Treatment of plastics surfaces
GB1005631A (en) * 1964-03-10 1965-09-22 Eastman Kodak Co Photographic materials
GB1100414A (en) * 1964-05-19 1968-01-24 Ici Ltd Treatment of plastics surfaces with an electrical discharge to improve their bonding properties

Also Published As

Publication number Publication date
DE1923724A1 (en) 1969-11-27
US3531314A (en) 1970-09-29
BE733009A (en) 1969-10-16
CA959451A (en) 1974-12-17
FR2008405A1 (en) 1970-01-23
JPS4937841B1 (en) 1974-10-12

Similar Documents

Publication Publication Date Title
GB1242664A (en) Manufacture of photographic material
US3702258A (en) Web treatment method
US4517143A (en) Method and apparatus for uniformly charging a moving web
US3671806A (en) Method of and apparatus for applying an electrical charge to a moving sheet of flexible material
US3730753A (en) Method for treating a web
JPH0135702B2 (en)
US4486808A (en) Apparatus for controlling random charges on a moving web
US4513683A (en) Coating uniformity improvement apparatus
DE1185062B (en) Process for developing a charge image with a dry toner layer
EP0073427B1 (en) Process and apparatus for the pretreatment of polymer base materials
DE2712176A1 (en) METHOD FOR NEUTRALIZING TONER PARTICLES AND DEVICE FOR CARRYING OUT THE METHOD
KR900014945A (en) Image Forming Device
US3729648A (en) Method and apparatus for treating a web
DE970271C (en) Method for transmitting an electrostatic image
GB1325580A (en) Method and apparatus for increasing the charge density on the surface of non-conductive materials in industrial processes
DE2119780A1 (en) Procedure for regulating the load on a moving track
GB1326472A (en) Apparatus and methods for controlling the electrostatic condition of moving sheet or web material
US3757163A (en) Web treatment apparatus and methods
GB1274525A (en) Photoelectrophoretic image contrast control
US3369982A (en) Method of improving the adhesive properties of polyolefin film by passing a diffuse electrical discharge over the film's surface
US3446649A (en) Developing electrostatic images with a liquid developer
JPS5854384B2 (en) Electrophotographic development method
US3826672A (en) Non-electrostatic method for producing electrographic image
US4587192A (en) Developing apparatus for the liquid development of electrostatic charge images
US3001848A (en) Electron beam recording apparatus