DE340289C - Process for the production of artificial threads and other structures from viscose - Google Patents

Process for the production of artificial threads and other structures from viscose

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Publication number
DE340289C
DE340289C DENDAT340289D DE340289DA DE340289C DE 340289 C DE340289 C DE 340289C DE NDAT340289 D DENDAT340289 D DE NDAT340289D DE 340289D A DE340289D A DE 340289DA DE 340289 C DE340289 C DE 340289C
Authority
DE
Germany
Prior art keywords
viscose
structures
production
artificial threads
bark
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.)
Active
Application number
DENDAT340289D
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.)
Individual
Original Assignee
Individual
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.)
Publication of DE340289C publication Critical patent/DE340289C/en
Active legal-status Critical Current

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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

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

Man kann bekanntlich künstliche Fäden, Bänder, Filme, Platten u. dgl. herstellen, indem man Viskose durch entsprechend geformte Öffnungen in eine ErstarrungsfLüssigkeit, in der S Technik Fällbad genannt, eintreten läßt. Als solche Fällbäder werden in der Regel freie Mineralsäure enthaltende Lösungen von Sulfaten, Bisulfaten, Sulfiten usw. verwandt.
Neuerdings ist in der britischen PatentschriftIt is known that artificial threads, ribbons, films, plates and the like can be produced by letting viscose enter through appropriately shaped openings into a solidifying liquid, known in the S technique as a precipitation bath. As a rule, solutions of sulfates, bisulfates, sulfites, etc. containing free mineral acid are used as such precipitation baths.
Lately is in the British patent

ίο 14562.9 vorgeschlagen worden, Sulfitablauge, und zwar vorzugsweise Natronsulfitäblauge an Stelle der Salzlösungen in. Verbindung mit einer entsprechenden Menge freier Säure oder saurer Salze zu verwenden.ίο 14562.9 has been proposed, sulphite waste liquor, and preferably sodium sulfite liquor instead of the salt solutions in combination with a corresponding one Amount of free acid or acidic salts to be used.

Die in der Sulfitablauge enthaltenen Stoffe entstammen der eigentlichen Holzsubstanz und dürften zum Teil infolge der Einwirkung der schwefligen Säure als Sulfonsäuren, Aldehydsulfite u. dgl. ihre günstige Wirkung bei derThe substances contained in the sulphite waste liquor originate from the actual wood substance and probably due to the action of sulphurous acid as sulphonic acids, aldehyde sulphites and the like. Their beneficial effect in the

ao Fällung ausüben.ao practice felling.

Es wurde nun gefunden, daß auch in· der Rinde und den Nadeln von Koniferen wasserlösliche Stoffe enthalten sind, die, im Fällbad an Stelle von Salzen angewandt, ZellulosegebildeIt has now been found that they are also water-soluble in the bark and needles of conifers It contains substances which, when used in the precipitation bath instead of salts, are cellulose structures

as von technisch hervorragenden Eigenschaften ergeben. Ihre Isolierung ist nicht notwendig, vielmehr genügt es, wenn man Reisig oder Rinde von Koniferen einige Stunden mit Wasser auskocht und die so gewonnene Abkochung mit Mineralsäuren oder sauren Salzen ansäuert und als Fällbad verwendet.as of technically excellent properties result. It is not necessary to isolate them; rather, it is sufficient to use sticks or bark of conifers is boiled with water for a few hours and the decoction obtained in this way Acidified mineral acids or acidic salts and used as a precipitation bath.

Beispielsweise kocht man Tannenreisig drei Stunden mit oder ohne Drück mit Wasser, läßt die dunkelbraune, emulsionsartige, trübe Flüssigkeit ablaufen, dampft sie, wenn nötig, auf 3 bis 50Be ein und sefzt zu 90 Teilen der Abkochung 8 bis 10 Teile Schwefelsäure von 6o° B6 hinzu. Hierbei nimmt die Flüssigkeit eine hellbraune Farbe an und ist alsdann fertig zum Gebrauch als Fällbad.For example, fir branches are boiled with water for three hours with or without pressure, the dark brown, emulsion-like, cloudy liquid is allowed to run off, if necessary, evaporated to 3 to 5 0 Be and 90 parts of the decoction sefzt 8 to 10 parts of 6o sulfuric acid ° B6 added. The liquid takes on a light brown color and is then ready for use as a precipitation bath.

Von großem Vorteil ist es, daß dieser Bestandteil des Fällbades aus dem überall erhältlichen Reisig oder der Rinde von Koniferen jederzeit von den Verbrauchern selbst herzustellen ist und daß, wie sich gezeigt hat, bei seiner Verwendung weniger Wert auf die genaue Einhaltung einer bestimmten Reifezeit für die Viskose gelegt zu werden braucht. Auch zeichnen sich so hergestellte Zellulosegebilde, wie etwa künstliche Fäden durch gleichmäßiges Anfärben auch in helleren Tönungen, hohe Elastizität und große Zerreißfestigkeit aus.It is of great advantage that this component of the precipitation bath is from the widely available Consumers can produce brushwood or the bark of conifers themselves at any time and that it has been shown to place less emphasis on strict adherence to its use a certain ripening time for the viscose to be laid. Also stand out Cellulose structures produced in this way, such as artificial threads by uniform dyeing, too in lighter tones, high elasticity and great tensile strength.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Herstellung künstlicher Fäden und anderer« Gebilde aus Viskose, dadurch gekennzeichnet, daß man Viskose aus entsprechend geformten Öffnungen in die wässerige Abkochung von Koniferenreisig oder -rinde treten läßt, der man eine Mineralsäure oder ein saures Salz zugesetzt hat.Process for the production of artificial threads and other «structures from viscose, thereby characterized in that one viscose from appropriately shaped openings in the watery decoction of coniferous branches or bark is allowed to pass, which is given a Mineral acid or an acidic salt added Has.
DENDAT340289D 1920-11-15 Process for the production of artificial threads and other structures from viscose Active DE340289C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE171691X 1920-11-15

Publications (1)

Publication Number Publication Date
DE340289C true DE340289C (en)

Family

ID=5689541

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT340289D Active DE340289C (en) 1920-11-15 Process for the production of artificial threads and other structures from viscose

Country Status (3)

Country Link
DE (1) DE340289C (en)
FR (1) FR543473A (en)
GB (1) GB171691A (en)

Also Published As

Publication number Publication date
FR543473A (en) 1922-09-04
GB171691A (en) 1922-06-29

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