DE431924C - Process for the production of rayon from rayon - Google Patents

Process for the production of rayon from rayon

Info

Publication number
DE431924C
DE431924C DEN22942D DEN0022942D DE431924C DE 431924 C DE431924 C DE 431924C DE N22942 D DEN22942 D DE N22942D DE N0022942 D DEN0022942 D DE N0022942D DE 431924 C DE431924 C DE 431924C
Authority
DE
Germany
Prior art keywords
rayon
caramel
viscose
production
silk
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
Application number
DEN22942D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOLLANDSCHE KUNSTZIJDE IND NV
Original Assignee
HOLLANDSCHE KUNSTZIJDE IND NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HOLLANDSCHE KUNSTZIJDE IND NV filed Critical HOLLANDSCHE KUNSTZIJDE IND NV
Application granted granted Critical
Publication of DE431924C publication Critical patent/DE431924C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08Composition of the spinning solution or the bath
    • D01F2/10Addition 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

Bei der Fabrikation von Kunstseide beabsichtigt man, den verschiedenen Eigenschaften der natürlichen Seide nahezukommen und sie, wenn möglich, noch zu übertreffen. Indessen weisen auch die natürlichen Seidensorten untereinander verschiedene Eigenschaften auf, " wie z. B. Tussahseide und Chinaseide; sie besitzen im Hinblick auf Kunstseide jedoch alle den Vorteil, daß die gesonderten Fädchen viel feiner sind. Diesem Umstand ist es zuzuschreiben, daß gemischte Gewebe nur wenig vorkommen.In the manufacture of rayon one intends to take into account the various properties come close to natural silk and, if possible, even surpass it. In the meantime the natural silk types also have different properties from one another, "such as tussah silk and china silk; they possess With regard to rayon, however, all have the advantage that the separate threads have a lot are finer. It is due to this fact that mixed fabrics only slightly occurrence.

Tussahseide hat von den natürlichen Seidensorten die gröbsten Fädchen und würde demzufolge an erster Stelle für den genannten Zweck in Betracht kommen. Nun weisen aber Tussah- und Kunstseide einen bedeutenden Unterschied auf, und zwar insbesondere hinsichtlich des verschiedenen Verhaltens in denselben Bleichbädern. Tussahseide behält dabei eine Brauncremefärbung, während Kunstseide nahezu klar weiß wird.Tussah silk has the coarsest threads of all natural silk types and therefore would in the first place come into consideration for the stated purpose. But now wise Tussah and rayon show a significant difference, especially in terms of of different behavior in the same bleach baths. Tussah silk keeps it a creamy brown color, while rayon turns almost clear white.

Es wurde nun gefunden, daß Kunstseide eine entsprechende Brauncremefärbung anas nimmt und auch nach normaler Bleichling behält, wenn man beim Spinnen einen gewissen Prozentsatz von Karamel oder eine erhebliche Menge Karamel enthaltenden, Stoffen hinzufügt. Dieser Zusatz kann zur Viskose, zum Spinnbad und zu beiden geschehen.It has now been found that artificial silk has a corresponding brown cream color takes and even after normal bleach keeps, if you have a certain amount of spinning Percentage of caramel or substances containing a significant amount of caramel adds. This addition can be made to viscose, to the spinning bath, and to both.

Der Karamel kann in verschiedenen Weisen hergestellt werden; auch kann man Abfallprodukte der Zuckerfabrikation verwenden, welche ebenfalls einen dunkelbraunen Karamel enthalten, oder Melasse, die man zwecks besserer Karamelisierung während einiger Zeit bis über 1000C erhitzt.The caramel can be made in several ways; It is also possible to use waste products from sugar production, which also contain a dark brown caramel, or molasses, which are heated to over 100 ° C. for some time for the purpose of better caramelization.

Bei Verwendung dieser Melasse zeigte sich die überraschende Erscheinung, daß der in einer sauren Salzlösung mit dem erwähnten Zusatz gesponnene Faden nicht nur eine Brauncremefärbung, sondern außerdem eine große Geschmeidigkeit und einen ruhigen Glanz angenommen hat, wodurch dieses Produkt sich von anderen Produkten günstig unterscheidet.When using this molasses, the surprising phenomenon emerged that the in an acid salt solution with the additive mentioned not just one thread Creamy brown color, but also great suppleness and a calm Gloss, which makes this product different from other products.

Diese besondere Wirkung könnte den in der Melasse anwesenden Stickstoffverbindungen zuzuschreiben sein, wie z. B. Betainen und Amidosäuren, die metall- und säurebindend wirken und in dieser Weise einen besonders günstigen Einfluß auf das Produkt ausüben könnten.This particular effect could be the nitrogen compounds present in the molasses be attributable to such. B. betaines and amido acids, which bind metals and acids act and in this way exert a particularly beneficial influence on the product could.

Zu einem Bad, welches 8 Prozent Schwefelsäure, 8 Prozent Magnesiumsulfat, 8 Prozent Natriumsulfat und 1 Prozent Zinksulfat enthält, wurden beispielsweise 4 Prozent einer bei 1250C karamelisierten Melasse hinzugefügt. Mit diesem Bade wurde in üblicher Weise Rohviskose gesponnen, wobei man eine Kunst- 6aAt a bath containing sulfuric acid 8 percent, 8 percent magnesium sulfate, 8 percent sodium sulfate and 1 percent zinc sulphate, for example 4 percent of a caramelized at 125 0 C molasses were added. With this bath, raw viscose was spun in the usual way, using an artificial 6a

seide mit ruhigem Glanz urfd vollem Griff erhält. Je nach den gewünschten Farbtönen kann man mehr oder weniger karamelisierte Melasse- hinzufügen. Man kann auch die Melasse unmittelbar zur Viskose zusetzen.silk with a calm sheen and full grip. Depending on the color you want you can add more or less caramelized molasses. You can also use the molasses add immediately to the viscose.

Claims (2)

Patent-Ansprüche:Patent Claims: i. Verfahren zur Herstellung von Kunstseide aus Viskose, dadurch gekennzeichnet, ίο daß man der Viskose oder dem vorzugsweise aus sauren Salzlösungen bestehenden Spinnbade oder beiden eine geringe Menge von Karamel oder eine erhebliche Menge Karamel enthaltenden Stoffen 'hinzufügt.i. Process for the production of rayon from viscose, characterized in that, ίο that one of the viscose or the preferably consisting of acidic salt solutions Spin bath or both substances containing a small amount of caramel or a substantial amount of caramel 'adds. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man karamelhaltige Melasse hinzufügt, die man nötigenfalls während einiger Zeit über 1 oo° C erhitzt hat.2. The method according to claim 1, characterized in that caramel-containing Add molasses, which, if necessary, are heated above 100 ° C for some time Has.
DEN22942D 1923-03-07 1924-03-08 Process for the production of rayon from rayon Expired DE431924C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL578219X 1923-03-07

Publications (1)

Publication Number Publication Date
DE431924C true DE431924C (en) 1926-07-19

Family

ID=19787561

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN22942D Expired DE431924C (en) 1923-03-07 1924-03-08 Process for the production of rayon from rayon

Country Status (3)

Country Link
DE (1) DE431924C (en)
FR (1) FR578219A (en)
NL (1) NL14840C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763247C (en) * 1938-05-12 1951-05-17 Glanzstoff Ag Process for the production of rayon threads from rayon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763247C (en) * 1938-05-12 1951-05-17 Glanzstoff Ag Process for the production of rayon threads from rayon

Also Published As

Publication number Publication date
NL14840C (en)
FR578219A (en) 1924-09-20

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