DE454680C - Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and salts - Google Patents
Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and saltsInfo
- Publication number
- DE454680C DE454680C DEB96890D DEB0096890D DE454680C DE 454680 C DE454680 C DE 454680C DE B96890 D DEB96890 D DE B96890D DE B0096890 D DEB0096890 D DE B0096890D DE 454680 C DE454680 C DE 454680C
- Authority
- DE
- Germany
- Prior art keywords
- sulfuric acid
- production
- salts
- viscose
- containing free
- 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
- 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
-
- 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
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Description
Verfahren zur Herstellung feinstfädiger Viskoseseide mittels freie Schwefelsäure und Salze enthaltender Fällbäder. Gegenstand des Hauptpatents ist ein Verfahren zur Herstellung feinst fädiger Viskoseseide mittels freie Schwefelsäure und Salze enthaltender Fällbäder, deren Gehalt an freier Säure erheblich über dem bisher üblichen, dem Reifegrad der jeweils benutzten Viskose entsprechenden Reifegrad liegt und, unter Regelung der Viskosezufuhr, derart, daß die Viskose in einem dem gewünschten Fadentiter entsprechenden Maße durch Düsenöffnungen bisher üblicher Weite zum Austritt gebracht wird.Process for the production of fine-thread viscose silk using free Precipitation baths containing sulfuric acid and salts. The subject of the main patent is a process for the production of very fine thread viscose silk using free sulfuric acid and salts containing precipitation baths, the content of free acid considerably above the Hitherto customary, the degree of ripeness of the viscose used in each case corresponding to the degree of ripeness is and, under control of the viscose supply, such that the viscose in one of the desired thread denier corresponding dimensions through nozzle openings so far more common Width is brought to the exit.
Die vorliegende Erfindung hat eine Verbesserung der Oualität der nach diesem Prinzip erzeugbaren feinen Fädchen zum "Zweck. Die Verbesserung besteht darin, daß @Terbindungen der schwefligen Säure in den Spinnprozeß eingeführt werden. Durch diese Maßnahme wird der Glanz der Produkte gesichert und es unterbleibt die bei sehr feinen Fädchen oft auftretende übermäßige Adhäsion des einen Fädchens zum anderen.The present invention has an improvement in the quality of the after fine threads that can be produced according to this principle. The improvement consists in that @Terbindungen the sulphurous acid are introduced into the spinning process. By this measure will ensure the shine of the products and it will not happen very fine threads, there is often excessive adhesion of one thread to the other.
Aus den amerikanischen Patentschriften X49823 und 863;93 ist es bekannt, Natriumbistilfit als Fällbad für Viskose zu verwenden oder latriumsulfit der Viskose ztizusetze;i und darauf in Natriumbisulfit zu fällen.From the American patents X49823 and 863; 93 it is known Sodium bistilfit can be used as a precipitation bath for viscose or sodium sulfite for viscose to add; i and then to precipitate in sodium bisulfite.
lach dem nachfolgend beschriebenen Verfahren findet ein Verspinnen von sulfithaltiger oder sulfitfreier Viskose im Gegensatz zu den amerikanischen Patentschriften nicht in Bisulfitbädern, -sondern in Spinnbädern statt, die nur nebenbei schwach schwefelsäurehaltig sind. Sie selbst bestehen wesentlich aus verdünnter Schwefelsäure neben den üblichen Zusätzen, Natriumsulfat u. a. m.A spinning takes place according to the procedure described below of sulfite-containing or sulfite-free viscose in contrast to the American Patents not in bisulfite baths, but in spinning baths, which only take place incidentally have a low content of sulfuric acid. They themselves consist essentially of dilute Sulfuric acid in addition to the usual additives, sodium sulfate and others. m.
Das Verfahren kann dahin abgeändert werden, daß man nach an sich bekanntem Verfahren der Viskose, und zwar zweckmäßig beim Lösen des Xanthates, geeignete Mengen Natriumsulfit oder Ammonsulfit zugibt. Die Schwefelsäure zersetzt beim Spinnen das Sulfit, und es tritt dann im Spinnbad freie schweflige Säure aus, die fortlaufend mit den aus der Viskose stammenden Sulfiden bzw. dem Sch@vefelwasserstoff aus den Rückbildungsprodukten der Viskose in Reaktion tritt, unter Abscheidung von Schwefel. Dieser ti?nhüllt in an sich bekannter Weise die. einzelnen Fädchen wie mit einem Panzer und hält sie auseinander.The method can be modified to follow what is known per se Process of viscose, expediently when dissolving the xanthate, suitable amounts Adds sodium sulfite or ammonium sulfite. The sulfuric acid decomposes during spinning Sulphite, and free sulphurous acid then escapes in the spinning bath, which continuously with the sulfides originating from the viscose or the hydrogen sulfide from the Formation products of the viscose react, with the deposition of sulfur. This ti? Nti wraps the in a manner known per se. individual threads as with one Tank and keep them apart.
Wenn das Zwirnen der Fädchen vor dem üblichen nachträglichen Entschwefeln vor-,genommen wird, wie beim Arbeiten mit sogenannten Zentrifugenspinnmaschinen, so behindert der Schwefel den Zwirnvorgang nicht nur nicht, sondern fixiert in erwünschter Weise die Zwirneng beim Trocknen.When twisting the threads before the usual subsequent desulphurisation is done, as when working with so-called centrifuge spinning machines, So the sulfur not only does not hinder the twisting process, but fixes it in a desirable way Wise the twist while drying.
Zugleich ist der Schwefelpanzer ein so guter Schutz der Einzelfädchen gegen mechanische Beschädigung beim Verarbeiten, daß es sich sogar empfiehlt, die Entschwefelung . erst nach dem Verweben der Fäden vorzunehmen, wobei die Deckkraft der Fäden sich als nicht unwesentlich erhöht erweist, Beispiel z. Schwefelsäure . .. .... .. zgo,g'imLiter Natriumsulfat . . . . . . . . . jao - - -Schweflige Säure in Form von Bisulfit . . . , . . . i 5o - - -Durch Einspinnen von Viskose aus öffnungen von o,FO'mm lassen sich unter entsprechender Bemessung der Stoffzufuhr Fädchen von:3 Deniers erspinnen.At the same time, the sulfur armor is such a good protection for the individual threads against mechanical damage during processing that it is even recommended that the Desulfurization. to be carried out only after the threads have been interwoven, whereby the opacity of the threads turns out to be not insignificantly increased, e.g. Sulfuric acid. .. .... .. zgo, g'imLiter of sodium sulfate. . . . . . . . . jao - - -Sulfurous acid in the form of bisulfite. . . ,. . . i 5o - - -By spinning of viscose from openings of o, FO'mm can be determined with appropriate dimensioning of the fabric feed threads of: 3 deniers.
Beispiele. `Schwefelsäure . . . . . . . . . 26o g im Liter Natriumsulfat . . . . . . . . . 400- - -Schweflige Säure in Form von Bisulfit . . . . . . . . . . 50- - . -Durch Einspinnen von Viskose aus öifnungen von o,iomm lassen sich unter entsprechender Bemessung der Stoffzufuhr Fädchen von 2 Deniers erspinnen.Examples. `Sulfuric acid. . . . . . . . . 26o g per liter of sodium sulphate. . . . . . . . . 400- - -Sulfurous acid in the form of bisulfite. . . . . . . . . . 50- -. By spinning in viscose from openings of o, iomm, threads of 2 deniers can be spun, provided the fabric supply is appropriately measured.
Beispiel 3. Example 3.
In die unter i und 2 verwendeten Bäder wird in gleicher Weise Viskose eingesponnen, der bei der Lösung je Liter 5o g eines neutralen Sulfites zugesetzt und dabei derselbe Effekt erzielt worden ist.In the baths used under i and 2, viscose is added in the same way spun in, which added 5o g of a neutral sulfite per liter of the solution and the same effect has been achieved.
In der Patentschrift 400185 der Kl. 29b ist ebenfalls von der Zugabe von Sulfiten und schwefliger Säure in mit Schwefelsäure versetzte Salzbäder die Rede. Jenem älteren Verfahren gegenüber ermöglicht das vorliegende Verfahren erstmalig die Herstellung feiner Fäden unter 6 Deniers, und zwar unter Benutzung ähnlicher, aber zum gewollten Zweck bestimmt anders dosierter Bäder. Das Verfahren verfolgt daher den Zweck, mit ganz bestimmten Mitteln einen neuen Artikel zu erzeugen.In the patent specification 400185 of class 29b is also from the addition of sulphites and sulphurous acid in salt baths mixed with sulfuric acid Speech. Compared to the older method, the present method enables for the first time the production of fine threads under 6 deniers, using similar ones, but for the intended purpose differently dosed baths. The proceedings followed hence the purpose of producing a new article by very specific means.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB96890D DE454680C (en) | 1919-05-21 | 1920-11-16 | Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and salts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB90039D DE444113C (en) | 1919-05-21 | 1919-05-21 | Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and salts |
DEB96890D DE454680C (en) | 1919-05-21 | 1920-11-16 | Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and salts |
Publications (1)
Publication Number | Publication Date |
---|---|
DE454680C true DE454680C (en) | 1928-01-16 |
Family
ID=25968217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB96890D Expired DE454680C (en) | 1919-05-21 | 1920-11-16 | Process for the production of very fine filament viscose silk by means of fibers containing free sulfuric acid and salts |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE454680C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078731B (en) * | 1955-03-28 | 1960-03-31 | American Viscose Corp | Process for the production of cellulose hydrate structures which are resistant to discoloration |
-
1920
- 1920-11-16 DE DEB96890D patent/DE454680C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078731B (en) * | 1955-03-28 | 1960-03-31 | American Viscose Corp | Process for the production of cellulose hydrate structures which are resistant to discoloration |
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