GB834526A - Improvements in or relating to web coating apparatus - Google Patents

Improvements in or relating to web coating apparatus

Info

Publication number
GB834526A
GB834526A GB26304/59A GB2630459A GB834526A GB 834526 A GB834526 A GB 834526A GB 26304/59 A GB26304/59 A GB 26304/59A GB 2630459 A GB2630459 A GB 2630459A GB 834526 A GB834526 A GB 834526A
Authority
GB
United Kingdom
Prior art keywords
chambers
web
hopper
slot
chamber
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
GB26304/59A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB834526A publication Critical patent/GB834526A/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
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

834,526. Coating webs. KODAK Ltd. Feb. 23, 1956 [Feb. 23, 1955], No. 26304/59. Divided out of 834,525. Class 140. Apparatus for applying two or more superposed coatings of layer-forming solutions, e.g. of light-sensitive material, to a film, paper, or other web comprises two or more chambers each having an extrusion passage communicating with a common discharge passage, and means for feeding the solutions to the chambers at controlled rates determined by the desired thickness of the individual layers. In Fig. 2 a hopper 10 is internally divided by an adjustable partition 16 into two chambers 24, 25 to which solutions S, S<SP>1</SP> are supplied by metering pumps P, P<SP>1</SP>. The chambers communicate with a discharge slot 11 through which superposed layers of solution L, L<SP>1</SP> are delivered to a bead 17 in contact with a moving web W, the layers being deposited on the web without intermixing. The hopper 10 is mounted on a frame which is pivoted about the web-carrying roller 13 and is adjustably securable by a screw engaging an arcuate slot. Screw means are also provided to adjust the hopper 10 angularly, and towards and away from the web. In a modification the hopper 10 contains two wedge-shaped blocks forming partitions providing a single lower chamber and two upper chambers all of which communicate through separate slot-shaped channels with the discharge slot 11. In Fig. 8 the hopper comprises a pair of blocks 40, 41 clamped between end plates, the block 41 having a chamber 46 the forward end of which forms a delivery slot 45 and a convex inner wall 47. The chamber 46 is divided by three partitions 48, 49, 50 into four sub-chambers each of which is supplied with solution through channels 64 and flexible tubes 65-68. The partitions 48-50 are vertically adjustable as by screws 62, and their upper ends are curved forwardly to form regularly curved channels leading to aligned slots 59-61 through which the solutions are directed in superposed layers to the delivery slot 45. The coated web is passed through a drying chamber, preceded if necessary by a chilling chamber.
GB26304/59A 1955-02-23 1956-02-23 Improvements in or relating to web coating apparatus Expired GB834526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US834526XA 1955-02-23 1955-02-23

Publications (1)

Publication Number Publication Date
GB834526A true GB834526A (en) 1960-05-11

Family

ID=22178428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26304/59A Expired GB834526A (en) 1955-02-23 1956-02-23 Improvements in or relating to web coating apparatus

Country Status (1)

Country Link
GB (1) GB834526A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300098A1 (en) * 1987-07-21 1989-01-25 Agfa-Gevaert N.V. Coating method
GB2285429B (en) * 1993-12-22 1998-07-15 Lintec Corp Cover tape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300098A1 (en) * 1987-07-21 1989-01-25 Agfa-Gevaert N.V. Coating method
GB2285429B (en) * 1993-12-22 1998-07-15 Lintec Corp Cover tape

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