DE924527C - Process for improving the production of hollow or artificial viscose threads or fibers containing chambers - Google Patents

Process for improving the production of hollow or artificial viscose threads or fibers containing chambers

Info

Publication number
DE924527C
DE924527C DEV1102D DEV0001102D DE924527C DE 924527 C DE924527 C DE 924527C DE V1102 D DEV1102 D DE V1102D DE V0001102 D DEV0001102 D DE V0001102D DE 924527 C DE924527 C DE 924527C
Authority
DE
Germany
Prior art keywords
hollow
production
improving
viscose
fibers containing
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
DEV1102D
Other languages
German (de)
Inventor
Hugo Dr Elling
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.)
Spinnfaser AG
Original Assignee
Spinnfaser AG
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 Spinnfaser AG filed Critical Spinnfaser AG
Priority to DEV1102D priority Critical patent/DE924527C/en
Application granted granted Critical
Publication of DE924527C publication Critical patent/DE924527C/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
    • D01F2/20—Composition of the spinning solution or the bath for the manufacture of hollow threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Description

Verfahren zur Verbesserung der Herstellung hohler bzw. Kammern enthaltender künstlicher Viscosefäden oder -fasern Es ist bekannt, hohle bzw. Kammern enthaftende künstliche Fäden oder Fasern aus Viscose, die in ein schwefelsaures natriumsulfathaltiges Fällbad hineingespritzt wird, dadurch herzustellen, daß man der Viscose ein Alkalicarbonat, insbesondere Soda, zusetzt. Dieser Zusatz erfolgt vor der Reife, der Viscose, schon im Mischer. Ist indessen in der Viscose Kalk anwesend, so können sich so,genannte Gay-Lussit-Kristalle bilden., die unter Umständen zu recht empfindlichen. Spinnstörungen, führen.Process for improving the production of hollow or chambers containing Artificial viscose threads or fibers It is known to contain hollow or chambers artificial threads or fibers made of viscose, which are converted into a sulphate of sodium sulphate Precipitation bath is injected into it, produced by adding an alkali metal carbonate to the viscose, especially soda. This addition takes place before the maturity, the viscose, already in the mixer. If, however, lime is present in the viscose, so-called Gay lussite crystals form, which can be quite sensitive under certain circumstances. Spinning disorders, to lead.

Um die Bildung der Gay-Lussit-Kristaile, zu unterdrücken, hat man bereits vorgeschlagen, dein Kalk, der sich in der Viscose befindet, möglichst frühzeitig bei der Herstellung der Viscose zu entfernen, indem man den Kalk als unlösliches Salz niederschlägt und dann den Niederschlag bei der üblichen Filtration entfernt. Diese Fällung kann mit einer Reihe von Salzen durchgeführt werden, die, wie Phasph:ate, Oxalate, Metaphosphate, Borate, Silicoaluminate, Hyposulfite, Aluminate u. dgl., ein unlösliche Kalksailze bildendes Anion enthalten. Auch Seife kann man der Viscose zugeben, um den gleichen Effekt zu erzielen.In order to suppress the formation of the gay lussite crystals, one has already suggested to remove your lime, which is in the viscose, as early as possible in the manufacture of the viscose remove by treating the lime as insoluble Salt precipitates and then the precipitate is removed in the usual filtration. This precipitation can be carried out with a number of salts which, like Phasph: ate, Oxalates, metaphosphates, borates, silicoaluminates, hyposulfites, aluminates and the like, contain an anion forming insoluble calcium salts. You can also use soap from the viscose admit to get the same effect.

Die Bildung der Gay-Lus.sit-Kristalle! hat man ferner dadurch hintanzuhalten versucht, daB man möglichst kalkfreie gereinigte Zellstoffe benutzte.The formation of the Gay-Lus.sit crystals! one also has to hold back tries to use purified cellulose that is as free of lime as possible.

Nach der Erfindung indessen. braucht man weder einen: besonders gereinigten. kalkfreien Zellstoff zu benutzen noch Zusätze zur Viscose zu machen, um die Bildung von Gay-Lussit-Kristallen zu unterdrücken. Im vorliegenden Fall verhindert man das Entstehen solcher Kristalle in einfacher Weise dadurch, daß man die für die-, Herstellung der Hohlräume in den Fäden oder Fasern verantwortliche AlkaJicarbanatlösung der Viscose nicht schon im Mischer einverleibt, sondern erst unmittelbar vor dem Verspinnen. Dabei geht man zweckmäßig sovor, daß man der Spinnmaschine einen mit einem Rührwerk und (bzw. oder) mit einet T-TmpumpvoR-richtung versehenen Kessel vorschaltet und in diesen einerseits die, Vi-scose, deren Dosierung von der Spinnmaschine, geregelt wird, sowie andererseits eine entsprechend bemessene alkalicarbona,thadtige, insbesondere sodahaltige Lösung unter Druck zuführt. Da von der Einverleibung des Allealicarbonats bis zum Verspinnen der Spinnlösung nur wenige Minnten, vergehen, können sich die obengenannten, den Spinnvorgang störenden Kristalle, wie sich gezeigt hat, nicht mehr ausbilden.According to the invention, however. you don't need one: specially cleaned. To use lime-free pulp nor to make additives to the viscose to the formation of gay lussite crystals to suppress. In the present case one prevents the formation of such crystals in a simple manner by that one those responsible for the production of the voids in the threads or fibers AlkaJicarbanat solution of the viscose not already incorporated in the mixer, but first immediately before spinning. It is advisable to go so that the spinning machine one with a stirrer and (or or) with a T-pump flow device Upstream boiler and in these on the one hand the, Vi-scose, whose dosage of the Spinning machine, is regulated, and on the other hand an appropriately sized alkalicarbona, thadtige, in particular, supplies a solution containing soda under pressure. Since the incorporation of the Allealicarbonate only takes a few minutes until the spinning solution is spun, The above-mentioned crystals which interfere with the spinning process can develop, as has been shown did not train anymore.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verhinderung der Gay-Lussit-Kristallbildung beim Spinnen von. Vismse mit Alkalicarbonatzu.satz, dadurch gekennzeichnet, daß die Alkalicarbonatlösung der Spinnlösungsleitung dort zugegeben wird, wo die alkalicarbonathaltige Viscose bis zur Düse einen kurzen und für die Strömung unbehinderten Weg zurücklegt. Angezogene Druckschriften Französische Patentschriften Nr. 725 385, 644485-PATENT CLAIM: Process for preventing gay lussite crystal formation when spinning. Vismse with alkali carbonate additive, characterized in that the alkali carbonate solution is added to the spinning solution line where the alkali carbonate viscose covers a short path that is unobstructed for the flow to the nozzle. Referred publications French patents nos. 725 385, 644485-
DEV1102D 1943-07-04 1943-07-04 Process for improving the production of hollow or artificial viscose threads or fibers containing chambers Expired DE924527C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV1102D DE924527C (en) 1943-07-04 1943-07-04 Process for improving the production of hollow or artificial viscose threads or fibers containing chambers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV1102D DE924527C (en) 1943-07-04 1943-07-04 Process for improving the production of hollow or artificial viscose threads or fibers containing chambers

Publications (1)

Publication Number Publication Date
DE924527C true DE924527C (en) 1955-03-03

Family

ID=7569445

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV1102D Expired DE924527C (en) 1943-07-04 1943-07-04 Process for improving the production of hollow or artificial viscose threads or fibers containing chambers

Country Status (1)

Country Link
DE (1) DE924527C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR644485A (en) * 1927-01-15 1928-10-09 Courtaulds Ltd Improvements in the manufacture of yarns, filaments, ribbons and the like
FR725385A (en) * 1930-10-29 1932-05-11 Method and apparatus for the manufacture of artificial filaments, films and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR644485A (en) * 1927-01-15 1928-10-09 Courtaulds Ltd Improvements in the manufacture of yarns, filaments, ribbons and the like
FR725385A (en) * 1930-10-29 1932-05-11 Method and apparatus for the manufacture of artificial filaments, films and the like

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