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DE800500C - Process for the production of endless structures from thread-forming, stretchable high polymers - Google Patents

Process for the production of endless structures from thread-forming, stretchable high polymers

Info

Publication number
DE800500C
DE800500C DEP12368A DEP0012368A DE800500C DE 800500 C DE800500 C DE 800500C DE P12368 A DEP12368 A DE P12368A DE P0012368 A DEP0012368 A DE P0012368A DE 800500 C DE800500 C DE 800500C
Authority
DE
Germany
Prior art keywords
thread
production
forming
high polymers
stretchable high
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
DEP12368A
Other languages
German (de)
Inventor
Erich Dr Schwartz
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEP12368A priority Critical patent/DE800500C/en
Priority to FR1010842D priority patent/FR1010842A/en
Application granted granted Critical
Publication of DE800500C publication Critical patent/DE800500C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00Other features of manufacture
    • D01D11/06Coating with spinning solutions or melts
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/28Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30Conjugate filaments; Spinnerette packs therefor
    • D01D5/34Core-skin structure; Spinnerette packs therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Materials For Medical Uses (AREA)

Description

Für viele Zwecke haben sich monofile fadenförmige Gebilde aus Hochpolymeren, z. B. Polyamiden, Polyestern oder Polyurethanen, infolge ihrer glatten Oberfläche sehr bewährt. Ein Nachteil dieser Fäden ist jedoch oft ihre Steifheit und ihre schlechte Knotbarkeit.For many purposes, monofilament thread-like structures made of high polymers, e.g. B. polyamides, Polyesters or polyurethanes, thanks to their smooth surface, have proven their worth. A disadvantage however, one of these threads is often their stiffness and poor knotability.

Es wurde nun gefunden, daß man ein biegsames Material mit glatter Oberfläche und großer mechanischer Festigkeit erhält, wenn man um eine großeIt has now been found that a flexible material with a smooth surface and great mechanical Strength is obtained when one is around a large one

ίο Anzahl sehr dünner Fasern aus fadenbildenden Hochpolymeren, die in der üblichen Weise kalt oder warm verstreckt worden sind, einen Schlauch des gleichen oder ähnlichen Materials aus Lösung oder Schmelze spinnt, der seinerseits nicht verstreckt worden ist.ίο number of very thin fibers from thread-forming High polymers that have been cold or warm stretched in the usual way make a tube of the same or similar material spins from solution or melt, which in turn does not stretch has been.

Läßt man die Einzelfasern vor dem Umspinnen mit dem Schlauch in paralleler Lage, so erhält man bändchenartige Gebilde. Gibt man den Fasern eine leichte Drehung oder verzwirnt sie, so ergeben sich Gebilde von rundem Querschnitt. Die Masse des Schlauches beträgt in der Regel etwa 2 bis 10% der Gesamtmasse des Fadens. Die so erhaltenen Fäden lassen sich ausgezeichnet knoten und eignen sich beispielsweise als Nähmaterial für chirurgische Zwecke.If the individual fibers are left in a parallel position before being spun around with the hose, then this is obtained one ribbon-like structure. If you give the fibers a slight twist or twist them, they result form with a round cross-section. The mass of the hose is usually around 2 to 10% of the total mass of the thread. The threads obtained in this way can be knotted excellently and are suitable, for example, as suturing material for surgical purposes.

Die Abbildung veranschaulicht eine Vorrichtung, wie sie beispielsweise zur Herstellung der Fäden benutzt werden kann:The figure illustrates a device such as that used, for example, for the production of the Threads can be used:

Das geschmolzene Polymere wird bei A mit konstanter Geschwindigkeit in die elektrisch geheizte Spinnvorrichtung eingepreßt und verläßt diese durch den ringförmigen Spalt B, der eine Breite von 0,1 mm hat. Das zu umspinnende Faserbündel C tritt durch ein Führungsrohr D und die öffnung £ in die Mitte des aus flüssigem Spinnmaterial bestehenden Hohlkegels F ein. Der beim gemeinsamen Abziehen mit dem Faserbündel C sich aus dem Kegel F bildende Schlauch legt sich fest um das Faserbündel.The molten polymer is pressed at A at constant speed into the electrically heated spinning device and leaves it through the annular gap B, which has a width of 0.1 mm. The fiber bundle C to be spun passes through a guide tube D and the opening E into the center of the hollow cone F made of liquid spinning material. The tube that forms from the cone F when it is pulled off together with the fiber bundle C is firmly attached to the fiber bundle.

Beispielexample

Ein verstrecktes paralleles Bündel von Polyamidfasern aus f-Caprolactam mit 150 Einzelfasern und einem Gesamttiter von 450 den. wird mit einer Geschwindigkeit von 100 m in der Minute durch die Teile D und E der in der Abbildung wiedergegebenen Apparatur gezogen. Gleichzeitig wird bei A in der Minute 0,5 g geschmolzenes polymeres £-Caprolactam (Eigenviskosität von 0,9) bei etwa 2300 eingepreßt. Der aus der ringförmigen öffnung austretende Schlauch wird gemeinsam mit dem Faserbündel mit der angegebenen Geschwindigkeit abgezogen. Man erhält ein glattes flexibles Bändchen, dessen Umhüllung 10% des Fadengewichtes ausmacht. A drawn parallel bundle of polyamide fibers made from f-caprolactam with 150 individual fibers and a total denier of 450 denier. is pulled through parts D and E of the apparatus shown in the figure at a speed of 100 m per minute. At the same time 0.5 g of molten polymeric £ -caprolactam (intrinsic viscosity of 0.9) is pressed at approximately 230 0 at A in the minute. The tube emerging from the annular opening is pulled off together with the fiber bundle at the specified speed. A smooth, flexible ribbon is obtained, the envelope of which makes up 10% of the weight of the thread.

Verwendet man statt eines Bündels paralleler Fasern ein solches, das 10 Drehungen je Meter erhalten hat, so erhält man ein Gebilde von rundem Querschnitt.Instead of a bundle of parallel fibers, use one that has 10 twists per meter has a structure with a round cross-section.

An Stelle von Polyamid kann man als Rohstoff für das Fadenbündel auch Polyurethan oder eine verstreckbare Polyvinylverbindung benutzen. Bündel und Haut können auch aus verschiedenem Material sein.Instead of polyamide, you can use polyurethane or a Use stretchable polyvinyl compound. Bundles and skin can also be made of different materials be.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung endloser Gebilde aus fadenbildenden, verstreckbaren Hochpolymeren, dadurch gekennzeichnet, daß man ein Bündel von verstreckten Einzelfasern mit einem Schlauch des unverstreckten gleichen oder ähnlichen Materials überzieht.Process for the production of endless structures from thread-forming, stretchable high polymers, characterized in that a bundle of drawn individual fibers with a Coated tube of the same or similar material undrawn.
DEP12368A 1948-10-02 1948-10-02 Process for the production of endless structures from thread-forming, stretchable high polymers Expired DE800500C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEP12368A DE800500C (en) 1948-10-02 1948-10-02 Process for the production of endless structures from thread-forming, stretchable high polymers
FR1010842D FR1010842A (en) 1948-10-02 1948-11-10 Process of making endless bodies from highly polymeric products which can be drawn into threads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12368A DE800500C (en) 1948-10-02 1948-10-02 Process for the production of endless structures from thread-forming, stretchable high polymers

Publications (1)

Publication Number Publication Date
DE800500C true DE800500C (en) 1950-11-09

Family

ID=7364030

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12368A Expired DE800500C (en) 1948-10-02 1948-10-02 Process for the production of endless structures from thread-forming, stretchable high polymers

Country Status (2)

Country Link
DE (1) DE800500C (en)
FR (1) FR1010842A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895261C (en) * 1951-07-01 1953-11-02 Aurnhammer Geb Towing rope for motor vehicles and process for its manufacture
DE1238648B (en) * 1958-10-03 1967-04-13 Dr Irmgard Moeller Geb Maag Tool for inserting a cylindrical dowel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895261C (en) * 1951-07-01 1953-11-02 Aurnhammer Geb Towing rope for motor vehicles and process for its manufacture
DE1238648B (en) * 1958-10-03 1967-04-13 Dr Irmgard Moeller Geb Maag Tool for inserting a cylindrical dowel

Also Published As

Publication number Publication date
FR1010842A (en) 1952-06-16

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