DE411167C - Process for the production of artificial threads u. Like. Made of viscose - Google Patents

Process for the production of artificial threads u. Like. Made of viscose

Info

Publication number
DE411167C
DE411167C DEC34839D DEC0034839D DE411167C DE 411167 C DE411167 C DE 411167C DE C34839 D DEC34839 D DE C34839D DE C0034839 D DEC0034839 D DE C0034839D DE 411167 C DE411167 C DE 411167C
Authority
DE
Germany
Prior art keywords
viscose
rayon
bath
usual
precipitation
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
DEC34839D
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Application granted granted Critical
Publication of DE411167C publication Critical patent/DE411167C/en
Expired legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Silicon Compounds (AREA)

Claims (2)

In der britischen Patentschrift 8045 vom Jahre 1906 ist ausgeführt, daß bei der Herstellung von Kunstseide aus Viskose diese nach JJurchgang durch ein Koagulierungsbad durch ein zweites Bad mit einem in Lösung befindlichen Alkalisilikat hindurchgeleitet werden kann, um die einzelnen Fadengebilde am Zusammenkleben zu verhindern. Diese Herstellungsmethode von Kunstseide hat jedoch in der Praxis nicht allgemein Eingang gefunden. Die Viskose wird heutzutage durchweg -unmittelbar in einem sauren Bade gefällt.British Patent 8045 of 1906 states that in the manufacture of rayon from rayon, after passing through a coagulating bath, it can be passed through a second bath with an alkali silicate in solution in order to prevent the individual thread structures from sticking together. However, this method of manufacturing rayon has not found general acceptance in practice. Nowadays, viscose is consistently precipitated in an acidic bath. Es wurde nun gefunden, daß bei der Herstellung von Kunstfäden u. dgl. aus Viskose eine wässerige Lösung eines Alkalisilikates, besonders eines solchen von saurem Typus, sehr wohl für die unmittelbare Fällung oder Koagulierung der Viskose benutzt werden kann. Z. B. erhält man beim Einleiten von Viskose, die in bekannter Weise zubereitet und gereift sein kann, durch feine Düsenöffnungen in einem Spritzstrahl in ein Fällbad, das ein Alkalisilikat, beispielsweise Natrium-It has now been found that in the manufacture of synthetic threads and the like from viscose an aqueous solution of an alkali silicate, especially one of the acidic type, can very well be used for the direct precipitation or coagulation of the viscose can. For example, the introduction of viscose which is prepared in a known manner is obtained and can be matured, through fine nozzle openings in a spray jet into a precipitation bath, which is an alkali silicate, for example sodium s5 silikat von hohem Kieselsäuregehalt (SiO2-) im Verhältnis zum Natriumgehalt (Na2Oj enthält, feine, gleichmäßige Fäden, die nach dem in üblicher oder geeigneter Weise vorzunehmenden Fixieren der üblichen Nach- und Fertigbehandlung unterzogen werden können und eine Kunstseide von hervorragender Güte darstellen.s5 silicate of high silica content (SiO 2- ) in relation to the sodium content (Na 2 Oj contains, fine, even threads, which can be subjected to the usual finishing and finishing treatment after fixing in the usual or suitable manner, and a rayon of excellent quality represent. Beispiel:Example: Viskose, wie sie für die übliche Herstellung von Kunstseide nach der sauren Fällmethode zubereitet wird, wird in eine Lösung gespritzt, die 20 Gewichtsprozente Natriumsilikat von der Zusammensetzung 2 Na2O + 7 SiO2 enthält, und auf einer Temperatur von 40 bis 50° C erhalten. Dieses Bad hat, obschon es im gewöhnlichen Sinne als stark alkalisch bezeichnet werden kann, die Eigenschaft, die Viskose in fester Form zu koagulieren. Nach dem Fixieren des Fällgutes, z. B. mit einprozentiger Schwefelsäure, und nach den üblichen Nachbehandlungen gewinnt man so einen glänzenden Faden von hervorragender Güte und vorzüglichen Eigenschaften, goViscose, as it is prepared for the usual production of rayon using the acidic precipitation method, is injected into a solution containing 20 percent by weight sodium silicate with the composition 2 Na 2 O + 7 SiO 2 , and at a temperature of 40 to 50 ° C obtain. This bath, although it can be described as strongly alkaline in the usual sense, has the property of coagulating the viscose in solid form. After fixing the material to be felled, e.g. B. with one percent sulfuric acid, and after the usual after-treatments you get a shiny thread of excellent quality and excellent properties, go Patenτ-A νSpruchε:Patenτ-A νSuchε: ι. Verfahren zur Herstellung von Kunstfäden u. dgl. aus Viskose, dadurch gekennzeichnet, daß die Fällung oder Koagulierung der Viskose mittels einer wässerigen Lösung eines Alkalisilikates herbeigeführt wird.ι. Process for the production of synthetic threads and the like from viscose, thereby characterized in that the precipitation or coagulation of the viscose by means of an aqueous Solution of an alkali silicate is brought about. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man für die Fällungslösung ein Alkalisilikat von hohem Kieselsäuregehalt im Verhältnis zum Alkalioxydgehalt verwendet.2. The method according to claim 1, characterized in that an alkali silicate of high silica content is used for the precipitation solution used in relation to the alkali oxide content.
DEC34839D 1923-07-05 1924-05-11 Process for the production of artificial threads u. Like. Made of viscose Expired DE411167C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1746823A GB217068A (en) 1923-07-05 1923-07-05 Improvements in the manufacture and production of threads, filaments and the like, from viscose

Publications (1)

Publication Number Publication Date
DE411167C true DE411167C (en) 1925-03-24

Family

ID=10095687

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC34839D Expired DE411167C (en) 1923-07-05 1924-05-11 Process for the production of artificial threads u. Like. Made of viscose

Country Status (3)

Country Link
DE (1) DE411167C (en)
FR (1) FR581523A (en)
GB (1) GB217068A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119327B (en) * 2004-06-02 2008-10-15 Sateri Internat Co Ltd Process for manufacturing silk-containing fiber

Also Published As

Publication number Publication date
GB217068A (en) 1924-06-12
FR581523A (en) 1924-12-01

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