GB690330A - Improvements in or relating to setting and drying aqueous coatings of hydrophilic colloids - Google Patents

Improvements in or relating to setting and drying aqueous coatings of hydrophilic colloids

Info

Publication number
GB690330A
GB690330A GB12375/49A GB1237549A GB690330A GB 690330 A GB690330 A GB 690330A GB 12375/49 A GB12375/49 A GB 12375/49A GB 1237549 A GB1237549 A GB 1237549A GB 690330 A GB690330 A GB 690330A
Authority
GB
United Kingdom
Prior art keywords
drying
chamber
film
temperature
coating
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
GB12375/49A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB690330A publication Critical patent/GB690330A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • 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
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/02—Drying; Glazing
    • G03D15/022—Drying of filmstrips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/136—Coating process making radiation sensitive element

Abstract

<PICT:0690330/III/1> A process for setting and drying an aqueous coating of a hydrophilic colloid on a support comprises gelling the colloid layer by cooling it and drying the gelled layer by means of a current of air at a temperature which would normally cause the coating to flow but at such a rate that it is dried sufficiently before its viscosity is reduced to the extent necessary for the layer to flow. In examples, the ranges of temperatures and drying times are given for coatings of gelatino silver halide emulsions upon cellulose acetate film or paper bases. After the colloid has first been gelled the support may be passed through an additional zone at a low temperature to obtain a firmer gel, and the coating may be further improved by passing the support after the first drying through a secondary drying and conditioning zones. A film 1 is taken from a reel over guide rolls 2 and 3 in a temperature-controlled chamber 4, the lower rolls 3 being mounted in a frame movable upwardly and downwardly, and is led from a coating unit 6 into a chilling tower 11. Cold air is admitted to the chilling tower 11 from a chamber 10 and is withdrawn through a chamber 12. The film is then taken through chambers 15 and 16 where warm air is impinged upon it from slots communicating with air ducts 17, 171 and 18, 181 in the chambers 15 and 16 respectively. From the chamber 16 the film passes through two further drying zones 21, 211, the former, 21, being supplied with warm air through slots from a duct 25. Finally the film is passed through a conditioning chamber 26 in which the temperature and humidity are controlled, and to a reeling device 30. Several of the lower rollers 29 in the conditioning chamber 26 may be given freedom of vertical movement. Glass plates may be coated on a moving belt with gelatino silver halide emulsion in the above manner.
GB12375/49A 1948-05-08 1949-05-09 Improvements in or relating to setting and drying aqueous coatings of hydrophilic colloids Expired GB690330A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US985765XA 1948-05-08 1948-05-08
US237418A US2620285A (en) 1948-05-08 1951-07-18 Process for drying photographic emulsions

Publications (1)

Publication Number Publication Date
GB690330A true GB690330A (en) 1953-04-15

Family

ID=26794881

Family Applications (2)

Application Number Title Priority Date Filing Date
GB12375/49A Expired GB690330A (en) 1948-05-08 1949-05-09 Improvements in or relating to setting and drying aqueous coatings of hydrophilic colloids
GB27684/51A Expired GB703802A (en) 1948-05-08 1951-11-26 Process for drying photographic emulsions

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB27684/51A Expired GB703802A (en) 1948-05-08 1951-11-26 Process for drying photographic emulsions

Country Status (4)

Country Link
US (1) US2620285A (en)
DE (1) DE897326C (en)
FR (1) FR985765A (en)
GB (2) GB690330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317247A3 (en) * 1987-11-16 1990-08-29 Konica Corporation Silver halide photographic light-sensitive material and the method of preparing the same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336261A (en) * 1963-12-02 1967-08-15 Dow Chemical Co Polycyanoterephthalylidene polymers and method of preparation
NL132537C (en) * 1964-12-23
US3802294A (en) * 1972-09-28 1974-04-09 Borg Warner Automotive transmission
JPS5938571B2 (en) * 1979-07-23 1984-09-18 コニカ株式会社 Method for manufacturing silver halide photographic materials
JPH0318847A (en) * 1989-06-16 1991-01-28 Mitsubishi Paper Mills Ltd Production of photosensitive material for diffusion transfer
US5202218A (en) * 1990-03-23 1993-04-13 Mitsubishi Paper Mills Limited Scanning exposing type lithographic printing plate with 1.5 wt. % of water or less
US5312646A (en) * 1991-02-27 1994-05-17 Eastman Kodak Company Method for manufacturing photographic material
JPH06500412A (en) * 1991-05-21 1994-01-13 イーストマン・コダック・カンパニー Apparatus and method for coating continuous webs
AU656251B2 (en) * 1991-12-19 1995-01-27 Kodak (Australiasia) Proprietary Ltd. Process for manufacturing photographic paper
EP0572613A4 (en) * 1991-12-19 1994-09-14 Eastman Kodak Co Process for manufacturing photographic paper
US5580588A (en) * 1994-04-14 1996-12-03 Eastman Kodak Company Apparatus for decurling a strip of photosensitive material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317247A3 (en) * 1987-11-16 1990-08-29 Konica Corporation Silver halide photographic light-sensitive material and the method of preparing the same

Also Published As

Publication number Publication date
DE897326C (en) 1953-11-19
FR985765A (en) 1951-07-23
US2620285A (en) 1952-12-02
GB703802A (en) 1954-02-10

Similar Documents

Publication Publication Date Title
GB690330A (en) Improvements in or relating to setting and drying aqueous coatings of hydrophilic colloids
US2269169A (en) Process for coating supports
US2898882A (en) Apparatus for coating and drying photographic layers
GB834527A (en) Improvements in or relating to web coating apparatus
US2369484A (en) Method and apparatus for making film
US3404025A (en) Method and apparatus for coating a sheet or web
CN104890171B (en) Casting device, solution film-forming device and method
GB855216A (en) Improvements relating to the coating of moving webs
CN107097374A (en) Casting device and solution film-forming method
US2714745A (en) Apparatus for manufacturing sheeting
US2295394A (en) Coating apparatus
US2322827A (en) Coating hopper
US1826697A (en) Apparatus for coating
GB755151A (en) Processes of coating
GB724274A (en) Improvements in or relating to method and apparatus for coating a flexible web
US1699349A (en) Method of and means for making photographic paper, film, or the like
US2168051A (en) Method of manufacturing continuous coated sheets of paper, film, or the like
US1772081A (en) Process and apparatus for treating derivatives of aqueous cellulose compounds for use in photographic and its allied arts and other useful purposes
GB1410693A (en) Test installation for single layer or multiple layer coating and drying of sheets or paper or film
US2129249A (en) Apparatus for sizing photographic paper
GB979402A (en) Improvements in or relating to the heat treatment of films
US3110442A (en) Apparatus for maintaining uniform humidity
US1312759A (en) stagey
Miller Rapid drying of normally processed black-and-white motion picture film
US1983529A (en) Method of producing sheets or films of regenerated cellulose