DE504732C - Process for the production of viscose - Google Patents
Process for the production of viscoseInfo
- Publication number
- DE504732C DE504732C DEI34069D DEI0034069D DE504732C DE 504732 C DE504732 C DE 504732C DE I34069 D DEI34069 D DE I34069D DE I0034069 D DEI0034069 D DE I0034069D DE 504732 C DE504732 C DE 504732C
- Authority
- DE
- Germany
- Prior art keywords
- viscose
- salts
- acids
- production
- acid
- 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
- D01F2/08—Composition of the spinning solution or the bath
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Artificial Filaments (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
Verfahren zur Herstellung von Viskose Es ,hat sich gezeigt, daß an Stelle der im Hauptpatent genannten Oxalsäure bzw. deren Alkalisalzen auch organische Oxysäuren, wie z. B. Citronensäure, Weinsäure, Milchsäure usw. oder deren Salze, verwendet werden können, tun Verbindungen von Schwermetallen aus Viskosegebilden mehr oder weniger fernzuhalten. Dieses Auftreten von Schwermetailverbindungen ist nämlich als eine der Ursachen, die zu Oualitätsbeschädigungen der erzeugten Gebilde aus Viskose führen können, erkannt worden.Process for the production of viscose It has been shown that at Place of the oxalic acid or its alkali salts mentioned in the main patent also organic Oxy acids, such as. B. citric acid, tartaric acid, lactic acid etc. or their salts, can be used, compounds of heavy metals from viscose do more or less to keep away. This occurrence of heavy metal connections is namely as one of the causes that lead to quality damage of the created structures can result from viscose has been recognized.
Die Zugabe der Tartrate, Citrate, Lactate usw. oder der entsprechenden Säuren zur Viskose kann auch hier auf jede beliebige Weise bewerkstelligt werden. Die Zusatzmenge wird den technischen Anforderungen entsprechend variiert, gebräuchlich sind Konzentrationen zwischen o,i bis I %.The addition of the tartrates, citrates, lactates, etc. or the corresponding acids to the viscose can also be accomplished here in any desired manner. The amount added is varied according to the technical requirements; concentrations between 0.1 and 1 % are common .
Als Beispiele für die Ausführung des Verfahrens «-erden, ohne uns damit auf diesen Fall beschränken zu wollen, angeführt: r. 5 g Seignettesalz werden unter Rühren in r Liter Viskose gelöst, die weitere Behandlung der Viskose findet in der üblichen Weise statt.As examples of the execution of the procedure «-ground without us In order to restrict it to this case, stated: r. 5 g of Seignette salt dissolved with stirring in r liter of viscose, which is further treated held in the usual way.
2. 1o g milchsaures Natrium werden der Lauge oder dem Wasser, das zum Lösen des für r Liter Viskose notwendigen Natriumzanthogenats dient, zugesetzt und auf diese Weise der Viskose einverleibt. Die Viskose wird in bekannter Weise in mineralsauren, gegebenenfalls salzhaltigen Bädern versponnen.2. 1o g of lactic acid sodium are added to the lye or water that serves to dissolve the sodium zanthogenate necessary for r liter of viscose, added and in this way incorporated into the viscose. The viscose is made in a known manner spun in mineral acid, possibly salty baths.
Das von uns vorgeschlagene Verfahren unterscheidet sich grundsätzlich von dem Verfahren des D. R. P. 274 550 und dem dazugehörigen Zusatzpatent 283 286. Diese beiden Patente beanspruchen die Verwendung der Lösungen von Citronensäure, Milchsäure, Glykolsäure und ihrer Salze als Fällbäder für -\-iskoselösungen, und zwar werden Fällbäder angewandt, die ausschließlich aus den Lösungen dieser Säuren und ihrer Salze bestehen und diese, wie sich aus den angeführten Beispielen ergibt, in erheblicher Menge enthalten. Es wird die Zusammensetzung eines Spinnbades genannt, (las aus einer Lösung von 30 "/" Citronensäure und 30°(o citronensaurem Na besteht; ein anderes Fällbad enthält eine gesättigte Lösung von milchsaurem Na und i4"/" Milchsäure.The process proposed by us differs fundamentally from the process of DRP 274 550 and the associated additional patent 283 286. These two patents claim the use of solutions of citric acid, lactic acid, glycolic acid and their salts as precipitation baths for - \ - iskose solutions Precipitation baths are used, which consist exclusively of the solutions of these acids and their salts and contain these in considerable quantities, as can be seen from the examples given. The composition of a spinning bath is called a solution of 30 "/" citric acid and 30 ° (o citric acid Na; another precipitation bath contains a saturated solution of lactic acid Na and 14 "/" lactic acid.
Nach dem Anspruch 2 des D. R. P. 283 286 soll das in Verwendung kommende Salz der genannten Säuren teilweise der Viskoselö:,ung vor dem Verspinnen zugesetzt werden. Bei dieser Ausführung soll zur Koagulation der Viskoselösung ebenfalls ein Fällbad aus den angeführten Säuren und ihren Salzen dienen.According to claim 2 of DRP 283 286 , some of the salts of the acids mentioned that are used are to be added to the viscose solution before spinning. In this embodiment, a precipitation bath made from the acids and their salts should also be used to coagulate the viscose solution.
Der wesentliche Unterschied vorliegenden Verfahrens gegenüber dem der genannten Patente besteht darin, daß hier die organischen Oxvsäuren oder ihre Salze ausschließlich der Viskose zugesetzt werden und als Spinnbad eines der in der Praxis verwendeten Bäder benutzt wird, d. h., daß auf die Anwendung der genannten organischen Säuren oder ihrer Salze im Spinnbade verzichtet wird. Damit werden gegenüber den genannten Patenten 274 550 und 283 286 die hohen Kosten derartiger Fäll'bäder vermieden, was einen technischen Fortschritt bedeutet. Es ist klar, daß die Anwendung dieser kostspieligen Bäder ohne eine große Steigerung der Produktionskosten nicht möglich ist. Im Gegensatz zum Vorbekannten ermöglicht das vorliegende Verfahren, den gewünschten Effekt auf bequeme und wirtschaftliche Art zu erreichen.The main difference between the present process and that of the patents mentioned is that here the organic oxy acids or their salts are added exclusively to the viscose and one of the baths used in practice is used as the spinning bath, that is, on the application of the organic acids mentioned or their salts are dispensed with in the spinning bath. This avoids the high costs of such precipitation baths compared to the cited patents 274 550 and 283 286, which represents a technical advance. It is clear that these expensive baths cannot be used without a large increase in production costs. In contrast to the previously known method, the present process enables the desired effect to be achieved in a convenient and economical manner.
Organische Säuren sind auch schon zur Reinigung des Cellulosexanthogenats verwendet worden. Die aus solchem gereinigten Cellulosexanthogenat ,hergestellten Viskosen enthalten aber die organischen Säuren nicht mehr. Auch Lösungen von Cellulosexanthogenat wurden zum Zwecke der Reinigung schon mit organischen Säuren versetzt. Solche Lösungen waren aber wegen ihrer geringen Haltbarkeit nur zu besonderen technischen Zwecken verwendbar. Für Spinnzwecke kommen solche Viskosen nicht in Frage.Organic acids are also used to purify the cellulose xanthate been used. Those made from such purified cellulose xanthate But viscose no longer contain the organic acids. Also solutions of cellulose xanthate have already been mixed with organic acids for the purpose of cleaning. Such solutions but because of their short shelf life they were only used for special technical purposes usable. Such viscoses are out of the question for spinning purposes.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI34069D DE504732C (en) | 1928-02-28 | 1928-04-05 | Process for the production of viscose |
CH141560D CH141560A (en) | 1928-02-28 | 1929-02-26 | Process for the production of viscose. |
GB657429A GB306971A (en) | 1928-02-28 | 1929-02-28 | Manufacture of viscose |
GB1059429A GB309147A (en) | 1928-02-28 | 1929-04-05 | Improvements relating to the manufacture of fibres, ribbons, films or the like from viscose |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI33647D DE486769C (en) | 1928-02-28 | 1928-02-28 | Process for the production of viscose |
DEI34069D DE504732C (en) | 1928-02-28 | 1928-04-05 | Process for the production of viscose |
Publications (1)
Publication Number | Publication Date |
---|---|
DE504732C true DE504732C (en) | 1930-08-07 |
Family
ID=25981470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI34069D Expired DE504732C (en) | 1928-02-28 | 1928-04-05 | Process for the production of viscose |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH141560A (en) |
DE (1) | DE504732C (en) |
GB (2) | GB306971A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770554A (en) * | 1952-11-08 | 1956-11-13 | Celanese Corp | Viscose solution, a process for making it and a filament formed from it |
-
1928
- 1928-04-05 DE DEI34069D patent/DE504732C/en not_active Expired
-
1929
- 1929-02-26 CH CH141560D patent/CH141560A/en unknown
- 1929-02-28 GB GB657429A patent/GB306971A/en not_active Expired
- 1929-04-05 GB GB1059429A patent/GB309147A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770554A (en) * | 1952-11-08 | 1956-11-13 | Celanese Corp | Viscose solution, a process for making it and a filament formed from it |
Also Published As
Publication number | Publication date |
---|---|
CH141560A (en) | 1930-08-15 |
GB306971A (en) | 1930-03-27 |
GB309147A (en) | 1930-07-07 |
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