US1942990A - Device for spinning viscose solutions while applying long precipitating distances - Google Patents
Device for spinning viscose solutions while applying long precipitating distances Download PDFInfo
- Publication number
- US1942990A US1942990A US397625A US39762529A US1942990A US 1942990 A US1942990 A US 1942990A US 397625 A US397625 A US 397625A US 39762529 A US39762529 A US 39762529A US 1942990 A US1942990 A US 1942990A
- Authority
- US
- United States
- Prior art keywords
- precipitating
- spinning
- distances
- nozzle
- applying long
- 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 - Lifetime
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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
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- 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
-
- 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
- B29C48/03—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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
Description
I -E H gwuentot Filed Oct Jan. 9, 1934. J. VOSS DEVICE FOR SPINNING VISCOSE SOLUTIONS WHILE APPLYING LONG PRECIPITATING DISTANCES IIII IIIIIIIHIIHHIIIIHIIH llllll IIIIIIIII [IIIIII [III I l l Patented Jan. 9, 1934 UNITED STATES DEVICE FOR SPINNING VISC'OSE SOLU- TIONS WHILE APPLYING LONG PRECIPI- TATIN G DI STANCE S Julius Voss, Wiesbaden-Biebrich, Germany, as-
signor, by mesne assignments, to The Visking Corporation, Chicago, Virginia Ill., a. corporation of Application Qotoberfi, 1929, Serial No. 397,625,
and in Germany October 13, 1928 2 Claims.
The present invention relates to a device for spinning viscose solutions while applying long precipitating distances.
Broad articles from regenerated cellulose, such 5 as tubular bodies, bandlets or films have hitherto usually been prepared by passing the viscose which has been pressed from the suitably formed nozzle into the precipitating bath through the said bath for a distance of 40-50 cm., whereby the viscose is converted, according to the kind of precipitating bath used, more or less into cellulose or cellulose xanthogenate of ammonium. It has hitherto technically been impossible to use long precipitating distances which would have enabled a farther-reaching coagulation and consequently a more careful treatment and preser vation of the material, because the delivery rollers by which the film is uniformly discharged from the nozzle have to beeasily handled by the workman; they, therefore, have to be adjusted not much more than 40-50 cm. underneath the nozzle. Otherwise the spinning start would meet with considerable difiiculties.
Now I have found that these dimculties encountered at the spinning start can be overcome by fixing the delivery rollers not tightly inside the spinning vessel, but placing them under the spinning nozzle adjustably in height and distance from the opening of the nozzlen At the spinning start the delivery rqllefs are approached as far as possible to the nozzle, for instance to 30 cm., so that no difliculties'arise to pass the film or tubular body around the delivery roller. The discharging rollers are then gradually lowered and withdrawn from the nozzle. When preparing tubular bodies, said bodies are discharged by means of two rollers the distance of which may be adjustable by means of a micrometerscrew. Thus a spinning distance of one meter 40 and above is obtained.
The accompanying drawing illustrates two methods of executing the process in question and of which drawing:
Fig. 1 is a detail vertical longitudinal section;
Fig. 2 is a transverse vertical section showing the structure of Fig. l as viewed from the right, and
Fig. 3 is a section similar to Fig. 1 of a modified form.
1. Preparation of films In the spinning vessel a covered with lead is i the precipitating bath 1;, for instance ammonium sulfate. The viscose in form of a band is pressed ll into the precipitating liquid through the inlet pipe d and the spinning funnel c; the viscose solidifies in said liquid so as to form a film. When starting the spinning process the frame 1 which runs in the guides el and e2 and the delivery. roller g are caused to ascend as much as possible by turning the crank h; the film is then drawn out of the nozzle 0, conducted round the driven roller g to the roller 2' by which it is conveyed onward. The frame with the delivery roller is then gradually lowered until it reaches the bottom of the vessel. Spinning distances of more than one meter are thus easily obtained. In the drawings 1 and 2 the frame is illustrated half way lowered.
2. Tubular bodies The tubular bodies are prepared as a matter of principle according to the same process. The tubular bodies are, however, discharged from the nozzle by two rollers g1 and g2 (drawing 3) the distance of which is adjustable by means of a micrometer-screw. With precipitating distances of a suflicient length damage of the tubular body is avoided by means of the squeezing effect of the rollers.
I claim: I 1. In an apparatus for spinning broad articles from regenerated cellulose by entering a viscose solution through a nozzle into a precipitating bath, a delivery device comprising two rollers, the said device being adjustably mounted inside the precipitating bath under the spinning nozzle and displaceable in the direction of spinning for altering the distance between the nozzle and the delivery device. 2. In an apparatus for spinning broad articles from regenerated cellulose by entering a viscose solution through a nozzle into a precipitating bath, a delivery device being mounted inside the precipitating bath under the spinning nozzle and displaceable in the directionof spinning for altering the distance between the nozzle and the delivery device, the said device comprising two rollers the distance of which can be altered by a
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1942990X | 1928-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1942990A true US1942990A (en) | 1934-01-09 |
Family
ID=7750569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US397625A Expired - Lifetime US1942990A (en) | 1928-10-13 | 1929-10-05 | Device for spinning viscose solutions while applying long precipitating distances |
Country Status (1)
Country | Link |
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US (1) | US1942990A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895165A (en) * | 1956-11-05 | 1959-07-21 | American Viscose Corp | Radius bar linkage |
US3687585A (en) * | 1970-01-02 | 1972-08-29 | Haruo Takagi | Apparatus for manufacturing synthetic resin tube provided with heat-shrinking property |
DE4421482A1 (en) * | 1994-06-20 | 1995-12-21 | Fraunhofer Ges Forschung | Blown film made of cellulose |
AT403584B (en) * | 1993-09-13 | 1998-03-25 | Chemiefaser Lenzing Ag | METHOD AND DEVICE FOR PRODUCING CELLULOSIC FLAT OR TUBE FILMS |
US5773035A (en) * | 1996-07-01 | 1998-06-30 | Alfacel S.A. | Tubular cellulosic casing die |
US5783131A (en) * | 1996-08-27 | 1998-07-21 | Alfacel S.A. | Method to slowly regenerate cellulosic sausage casing |
-
1929
- 1929-10-05 US US397625A patent/US1942990A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895165A (en) * | 1956-11-05 | 1959-07-21 | American Viscose Corp | Radius bar linkage |
US3687585A (en) * | 1970-01-02 | 1972-08-29 | Haruo Takagi | Apparatus for manufacturing synthetic resin tube provided with heat-shrinking property |
AT403584B (en) * | 1993-09-13 | 1998-03-25 | Chemiefaser Lenzing Ag | METHOD AND DEVICE FOR PRODUCING CELLULOSIC FLAT OR TUBE FILMS |
DE4421482A1 (en) * | 1994-06-20 | 1995-12-21 | Fraunhofer Ges Forschung | Blown film made of cellulose |
US5773035A (en) * | 1996-07-01 | 1998-06-30 | Alfacel S.A. | Tubular cellulosic casing die |
US5783131A (en) * | 1996-08-27 | 1998-07-21 | Alfacel S.A. | Method to slowly regenerate cellulosic sausage casing |
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