GB755151A - Processes of coating - Google Patents

Processes of coating

Info

Publication number
GB755151A
GB755151A GB16292/54A GB1629254A GB755151A GB 755151 A GB755151 A GB 755151A GB 16292/54 A GB16292/54 A GB 16292/54A GB 1629254 A GB1629254 A GB 1629254A GB 755151 A GB755151 A GB 755151A
Authority
GB
United Kingdom
Prior art keywords
coating
water
aqueous
coated
gelatin
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
GB16292/54A
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 GB755151A publication Critical patent/GB755151A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0042—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by pouring or allowing to flow in a continuous stream onto the surface, the entire stream being carried away by the paper
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/64—Addition to the formed paper by contacting paper with a device carrying the material the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

755,151. Photographic films and papers. DU PONT DE NEMOURS & CO., E.I. June 2, 1954 [Aug. 19, 1953], No. 16292/54. Class 98 (2). [Also in Group VIII] A process for coating a viscous aqueous composition on a continuous web comprises extruding the composition on to the web moving at a speed of at least 150 ft. per min. and 1 to 200 times faster than the speed of extrusion in the presence of water vapour or readily condensable vapours of an inert water-soluble liquid having a boiling point not greater than 212‹ F. while maintaining a pressure from 20 mm. to 190 mm. and a temperature of 75‹ to 150‹ F. As shown in the Figure, the web is guided by a roller 2 to contact the surface of a drum 4 passing over rollers 3, 5 to 9 to another part of the surface, where it passes between the drum and a guide 10 secured to the coating chamber 1. The composition is extruded from an orifice 18 connected to a chamber 17 and supply pipe 15. Openings 11 are provided for initially withdrawing air and a pipe 13 and nozzle 14 for introducing condensable vapour such as water vapour to the required low pressure. A heating element 19 or water jacket raises the temperature of the chamber. An inspection window 20 is provided. The coating may comprise aqueous, silver halide dispersions in natural and synthetic water permeable colloids such as gelatin albumin, agar agar, water-permeable polyamides, polyvinyl alcohol partially hydrolysed polyvinyl esters and hydrophilic polyvinyl acetals or aqueous ethanol solutions of polyvinyl acetal colour formers of the type described in Specification 598,477 or film bases carrying light sensitive silver salts dispersed in polyvinyl acetal colour formers containing primary carbonamide or sulphonamide. In one example described a cellulose acetate film base with a thin gelatin sub-coating on its upper surface is coated with a gelatino silver bromide emulsion. In another example paper with a baryta coating is coated with an aqueous gelatino silver bromide photographic emulsion in the absence of actinic light. In a further example, a cellulose acetate film base with a gelatin substratum is coated with an aqueous gelatin solution containing a water-soluble anti-halation dye such as 4: 4<SP>1</SP> - methenyl - bis - (1 - phenyl - 3- methyl-pyrazolone-5). The process is used for preparing multi-layer film elements, printing papers, double-coated X-ray films, motion picture and portrait films and papers. The coating may be a light filter layer, anti-halation and anti-abrasion layers and substratum layers from aqueous solutions.
GB16292/54A 1953-08-19 1954-06-02 Processes of coating Expired GB755151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US375127A US2795522A (en) 1953-08-19 1953-08-19 Processes of coating

Publications (1)

Publication Number Publication Date
GB755151A true GB755151A (en) 1956-08-15

Family

ID=23479610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16292/54A Expired GB755151A (en) 1953-08-19 1954-06-02 Processes of coating

Country Status (5)

Country Link
US (1) US2795522A (en)
BE (1) BE530377A (en)
DE (1) DE961783C (en)
FR (1) FR1111064A (en)
GB (1) GB755151A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972330A (en) * 1956-02-15 1961-02-21 Nat Steel Corp Vacuum seal for coating apparatus
US3085617A (en) * 1957-01-14 1963-04-16 Sorg Adam Apparatus for forming plastic-coated filter paper webs for infusion packages
US2971862A (en) * 1957-04-26 1961-02-14 Nat Res Corp Vapor deposition method and apparatus
US2965067A (en) * 1957-10-24 1960-12-20 Nat Res Corp Vacuum coating apparatus
BE572753A (en) * 1957-11-08 1900-01-01
US2952569A (en) * 1958-01-28 1960-09-13 Nat Steel Corp Method and apparatus forming an ice seal in vapor deposition
US3043728A (en) * 1958-03-17 1962-07-10 Nat Res Corp Apparatus and process for metallic vapor coating
US3161560A (en) * 1961-01-04 1964-12-15 Int Paper Co Extrusion coated paper and method of making the same
US3260603A (en) * 1962-11-23 1966-07-12 Minnesota Mining & Mfg Rough surfaced copy-sheet intermediate
US3640752A (en) * 1966-05-02 1972-02-08 Fuji Photo Film Co Ltd Coating method
US4051278A (en) * 1975-06-06 1977-09-27 Eastman Kodak Company Method for reducing mottle in coating a support with a liquid coating composition

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164174A (en) * 1914-03-02 1915-12-14 Joseph P Devine Apparatus for coating fabrics.
FR728538A (en) * 1929-11-12 1932-07-07 Method for fixing and reproducing light images and products obtained by said method
GB448863A (en) * 1934-12-10 1936-06-10 Naamlooze Vennootschap Nl Lab A process for multi-color photography
US2175125A (en) * 1937-06-15 1939-10-03 Reynolds Res Corp Method for forming films and film coatings
BE513714A (en) * 1951-08-23 1900-01-01

Also Published As

Publication number Publication date
BE530377A (en)
FR1111064A (en) 1956-02-22
US2795522A (en) 1957-06-11
DE961783C (en) 1957-04-11

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