GB834526A - Improvements in or relating to web coating apparatus - Google Patents
Improvements in or relating to web coating apparatusInfo
- 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
Links
- 238000000576 coating method Methods 0.000 title abstract 3
- 239000011248 coating agent Substances 0.000 title abstract 2
- 238000005192 partition Methods 0.000 abstract 4
- 239000011324 bead Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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 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.
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)
| 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 |
-
1956
- 1956-02-23 GB GB26304/59A patent/GB834526A/en not_active Expired
Cited By (2)
| 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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