DE571776C - Process for the production of rayon from rayon - Google Patents
Process for the production of rayon from rayonInfo
- Publication number
- DE571776C DE571776C DEN27925D DE571776DD DE571776C DE 571776 C DE571776 C DE 571776C DE N27925 D DEN27925 D DE N27925D DE 571776D D DE571776D D DE 571776DD DE 571776 C DE571776 C DE 571776C
- Authority
- DE
- Germany
- Prior art keywords
- rayon
- web
- production
- spinning
- distance
- 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
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Materials For Medical Uses (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Viskosekunstseide mit besonderen mechanischen Eigenschaften. Es ist bereits bekannt, zur Erzielung besonderer Festigkeitseigenschaften die Viskosekunstseide auf dem Wege von der Spinndüse zur Aufwickelvorrichtung 'einer mechanischen Beanspruchung dadurch auszusetzen, daß. man sie über in ihrer gegenseitigen Stellung veränderliche Spannstäbe führt. Hierbei wird aber die Spannung stellenweise oder ruckweise 'erhöht, und es erfolgt in den einzelnen Fadenabschnitten leine ungleichmäßige und unkontrollierbare Beanspruchung.The invention relates to a method for producing viscose rayon with special mechanical properties. It is already known to achieve special Strength properties of the viscose rayon on the way from the spinneret to expose the winding device to mechanical stress in that. man it leads over tension rods which can be changed in their mutual position. Here is but the tension increases in places or jerks, and it takes place in the individual Sections of leash uneven and uncontrollable stress.
Erfindungsgemäß wird das Gespinst nach dem Verlassen der Spinndüse einer gleichmäßig und allmählich zunehmenden Spannung unterworfen. Dies geschieht dadurch, daß eine lange Tauchstrecke von wenigstens 5.0 cm Verwendung findet und die Fällbadflüssigkeit im Gegenstrom zum Gespinst geführt wird.According to the invention, the web becomes a uniform after leaving the spinneret and subjected to gradually increasing tension. This happens because a long immersion distance of at least 5.0 cm is used and the precipitation bath liquid is guided in countercurrent to the web.
Die bei langer Tauchstrecke dem FädenThe one with long dives
entgegenströmende Fällflüssigkeit wirkt sich in der Weise aus, daß eiri Ordnen der Mizellen stattfindet, was gleichbedeutend mit einer erheblichen Vergrößerung der Festigkeit des Fadens ist. Ferner fördert die gegenströmende Fällflüssigkeit die Streckung des Fadens. Eine mechanische Beanspruchung, wie sie der Faden bei Verwendung von Spannstäben erleiden würde, tritt beim Verfahren nach der Erfindung nicht 'ein.counter-flowing precipitating liquid acts in such a way that the micelles are arranged takes place, which is equivalent to a significant increase in strength of the thread is. Furthermore, the counter-flowing precipitation liquid promotes the stretching of the Thread. A mechanical stress, such as that of the thread when using tension rods would suffer, does not occur in the method according to the invention.
Die besten Erfolge werden' bei Verwendung einer langen Tauchstrecke von beispielsweise ι bis 2 m erzielt; indessen hat sich ergeben, daß es auch möglich ist, eine kürzere Tauchstrecke, z. B. eine Strecke von 90 cm und weniger, zu benutzen.The best results will be 'when using a long diving distance of, for example, ι to 2 m achieved; meanwhile it has emerged that it is also possible to dive a shorter distance, e.g. B. a distance of 90 cm and less to use.
Es muß noch bemerkt werden, daß beim Spinnen von Viskose lange TauchstreCken; bereits bekannt sind und daß· beim Spinnen von Kunstseide die Führung des Fällbades im Gegenstrom zum Gespinst ebenfalls nicht mehr neu ist. Nach der Erfindung indessen kommt es auf die Vereinigung dieser beiden Maßnahmen an.It must be noted that when spinning viscose long dipping stretches; are already known and that · the management of the felling bath when spinning artificial silk in countercurrent to the web is also no longer new. According to the invention, however what matters is the union of these two measures.
AusführungsbeispielEmbodiment
Normale Viskose wird durch die üblichen Spinnöffnungen über eine Strecke von 1,50 m in waagerechter Richtung durch ein entgegenströmendes Spinnbad geführt, das z. B. 10 Oy0 Schwefelsäure, 12 0/0 Magnesiumsulfat und 12 0/0 Natriumsulfat enthält. Darauf wird das Gespinst über einen gewöhnlichen Fadenführer in mehr oder weniger senkrechter Richtung zu einer Spule bzw. zu einem Haspel geführt; auch kann man das Gespinst nachNormal viscose is passed through the usual spinning orifices over a distance of 1.50 m in the horizontal direction through a spinning bath flowing in the opposite direction. B. 10 oy 0 sulfuric acid, 12 0/0 magnesium sulfate and 12 0/0 sodium sulfate contains. The web is then guided via an ordinary thread guide in a more or less perpendicular direction to a bobbin or to a reel; one can also post the web
dem Verlassen des Spinnbades über eine Glasrolle 'einer Spinnzentrifuge zuleiten.to leave the spinning bath via a glass roller 'of a spinning centrifuge.
Der große Vorteil der Erfindung geht aus der Tatsache hervor, daß normal gesponnene Kunstseide im allgemeinen eine Festigkeit besitzt, die naß ungefähr 6o g/ioo den. und trocken 150 g/100 den. beträgt. Wendet man jedoch das vorliegende Verfahren an, so findet man Zahlen, die bedeutend höher, z. B. to bei 100 g/iooden. bzw. 250 g/iooden. und mehr, liegen.The great advantage of the invention arises from the fact that normal spun Rayon generally has a strength that is about 60 grams per 100 when wet. and dry 150 g / 100 den. amounts to. If you turn however, with the present method, numbers are found that are significantly higher, e.g. B. to at 100 g / iooden. or 250 g / iooden. and more, lie.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL282721X | 1926-12-27 | ||
| NL36117A NL23254C (en) | 1926-12-27 | 1927-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE571776C true DE571776C (en) | 1933-03-04 |
Family
ID=26641663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN27925D Expired DE571776C (en) | 1926-12-27 | 1927-10-14 | Process for the production of rayon from rayon |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE571776C (en) |
| FR (1) | FR646850A (en) |
| GB (2) | GB282721A (en) |
| NL (1) | NL23254C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB423374A (en) * | 1935-05-03 | 1935-01-31 | Courtaulds Ltd | Improvements in and relating to the manufacture and production of artificial threads, filaments and the like |
| BE413160A (en) * | 1935-11-23 |
-
1927
- 1927-02-25 NL NL36117A patent/NL23254C/xx active
- 1927-10-14 DE DEN27925D patent/DE571776C/en not_active Expired
- 1927-11-11 GB GB30296/27A patent/GB282721A/en not_active Expired
- 1927-11-11 GB GB30314/27A patent/GB285890A/en not_active Expired
- 1927-11-29 FR FR646850D patent/FR646850A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB282721A (en) | 1928-07-19 |
| NL23254C (en) | 1931-01-15 |
| GB285890A (en) | 1928-08-23 |
| FR646850A (en) | 1928-11-16 |
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