GB405691A - Improvements in the production of sheet material - Google Patents
Improvements in the production of sheet materialInfo
- Publication number
- GB405691A GB405691A GB22536/32A GB2253632A GB405691A GB 405691 A GB405691 A GB 405691A GB 22536/32 A GB22536/32 A GB 22536/32A GB 2253632 A GB2253632 A GB 2253632A GB 405691 A GB405691 A GB 405691A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- liquid
- perforations
- pipe
- film
- 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
Classifications
-
- 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
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
<PICT:0405691/IV/1> <PICT:0405691/IV/2> <PICT:0405691/IV/3> <PICT:0405691/IV/4> <PICT:0405691/IV/5> <PICT:0405691/IV/6> Apparatus for the production of foils, films, and the like comprises a vessel adapted to contain setting fluid, means for extruding a solution in sheet form into the vessel, means for guiding the extruded sheet material through the vessel, means for introducing the setting fluid into the vessel at a large number of points, and means for withdrawing it at a large number of points so as to cause the setting fluid to flow uniformly through the vessel. The apparatus may be used in the production of films from solutions of cellulose acetate or other cellulose esters or ethers, or from solutions of cellulose in cuprammonium, or of viscose. The rate of flow of the setting solution may be small and it may be constant over the run of the material in the bath or means may be provided for obtaining an accelerated flow in certain stages of the setting of the sheet material such as that immediately following extrusion. The setting solution may flow longitudinally or transversely to the film. The film may be stretched longitudinally and transversely during coagulation. As shown in Fig. 1, film-forming solution is extruded from a hopper 12 with an adjustable slit and the film is received on a drum 18 immersed in coagulating liquid. The film passes round a drum 21 which draws it from the bath and then enters a drying chamber 23 from which it passes to a winding drum 26. The bath 17 is supplied with liquid from a perforated pipe 31 running across the width of the bath. The liquid issuing from the perforations 32 is further distributed by perforations 33 in a channel 34 in which the pipe 31 is contained. The liquid is drawn off by two perforated pipes 35 on each side of the bath. The pipe 35 nearer to the extrusion device may draw off the liquid at a greater rate than the other pipe 35 so as to produce an accelerated flow near the point of extrusion. As shown in Fig. 3 liquid is introduced by a pipe 41 to a channel 42 on the outside surface of the bath 17, the channel running the length of the bath. Liquid enters the bath through perforations 43 and flows from one side to the other, being removed by perforations 44 in a trough 45 secured outside the bath and extending the whole length of the bath. As shown in Fig. 5, coagulating liquid is introduced through perforated pipes 48 contained in perforated channels 50 at opposite ends and running across the width of the bath. The liquid is removed through perforations 53 in pipe 52 which runs across the width of the bath. As shown in Fig. 6, coagulating liquid enters the bath by means of a pipe 55 conducting it to a chamber 56 from which it flows through perforations 57 to the inner side of a plate 58 closely surrounding that part of the drum 18 round which the film is passing. The liquid is withdrawn by two perforated pipes 59, one at each side of the bath. As shown in Figs. 8 and 9, the bath 62 is of such shape as to fit closely round the roller 18. A partition 63 at one side of the bath separates a small space into which coagulating liquid is fed by a pipe 65 and the liquid enters the main part of the bath through perforations 66. The liquid passes across the bath and through perforations 67 in a partition 64 at the other side and leaves through a pipe 68. The perforations 66, 67 follow the line of the film round the drum 18 and up to the guide 20. Specifications 177,868, 179,234, [both in Class 2 (ii), Cellulose &c.], 182,154, 293,325, [both in Class 102 (i), Pumps &c.], 340,324, 340,325, 340,326, 340,436, 340,437, 343,062, 378,858, and 400,589 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22536/32A GB405691A (en) | 1932-08-11 | 1932-08-11 | Improvements in the production of sheet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22536/32A GB405691A (en) | 1932-08-11 | 1932-08-11 | Improvements in the production of sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB405691A true GB405691A (en) | 1934-02-12 |
Family
ID=10180972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22536/32A Expired GB405691A (en) | 1932-08-11 | 1932-08-11 | Improvements in the production of sheet material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB405691A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556217A (en) * | 1947-11-21 | 1951-06-12 | Rivoche Eugene | Apparatus for forming solid fuels into films or bands |
US2629896A (en) * | 1947-11-15 | 1953-03-03 | Rivoche Eugene | Apparatus for forming granular congealed fuel |
-
1932
- 1932-08-11 GB GB22536/32A patent/GB405691A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629896A (en) * | 1947-11-15 | 1953-03-03 | Rivoche Eugene | Apparatus for forming granular congealed fuel |
US2556217A (en) * | 1947-11-21 | 1951-06-12 | Rivoche Eugene | Apparatus for forming solid fuels into films or bands |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1871100A (en) | Process and apparatus for manipulating textile materials | |
GB689770A (en) | Improvements relating to apparatus for contacting a continuously-moving thread with liquid | |
GB1107066A (en) | Improved process and apparatus for production of membranes | |
US2254203A (en) | Method and apparatus for the production of sheets and films | |
ES388862A1 (en) | Process and apparatus for the production of tubes and tubular films | |
DE2310487A1 (en) | METHOD AND DEVICE FOR TESTING A TAPE-SHAPED MEMBRANE IN AN INSULATION CHAMBER FOR LEAKS | |
GB405691A (en) | Improvements in the production of sheet material | |
GB375424A (en) | Improvements in the production of artificial threads, ribbons and like materials | |
US2511699A (en) | Method for spinning viscose | |
US1720670A (en) | Manufacture of ultrafilter membranes | |
US2782623A (en) | Apparatus for treating continuous filamentary bundles | |
GB787999A (en) | Improvements relating to the extraction of soluble material from artificial particularly synthetic filaments, films and the like | |
US3050775A (en) | Spinning of cellulose film | |
US1949983A (en) | Spinning of artificial filaments and the like | |
GB375425A (en) | Improvements in the production of artificial filaments, threads, ribbons, films and similar materials | |
US2129249A (en) | Apparatus for sizing photographic paper | |
GB859520A (en) | Spinning process and apparatus for the production of artificial filaments | |
GB1153515A (en) | Improved Extrudate-Setting Apparatus | |
GB901432A (en) | Production of artificial filaments by wet spinning | |
GB822940A (en) | Improved process and apparatus for manufacturing artificial threads | |
GB405692A (en) | Improvements in the manufacture of films, sheets and the like | |
GB407351A (en) | Improvements in the manufacture of films, foils and the like containing cellulose derivatives | |
GB401679A (en) | Improvements in the treatment of artificial filaments, fibres and the like | |
GB375243A (en) | An improved pouring appliance for producing artificial skins | |
GB402784A (en) | Improvements in the manufacture of cellulosic films, sheets and threads |