BE455878A - - Google Patents

Info

Publication number
BE455878A
BE455878A BE455878A BE455878A BE455878A BE 455878 A BE455878 A BE 455878A BE 455878 A BE455878 A BE 455878A BE 455878 A BE455878 A BE 455878A BE 455878 A BE455878 A BE 455878A
Authority
BE
Belgium
Prior art keywords
emi
bath
viscose
threads
liquid
Prior art date
Application number
BE455878A
Other languages
French (fr)
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 filed Critical
Publication of BE455878A publication Critical patent/BE455878A/fr

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials For Medical Uses (AREA)

Description

       

  Procédé de fabrication de produits artificiels tels que fils,.fibres etc. présentant de bonnes propriétés d'usage, à. partir de viscose.

  
Dans un brevet antérieur, il a été décrit un procédé de fabrication, à partir de viscose, de produits artificiels tels que fils, fibres etc. présentant de bonnes propriétés d'usage. La caractéristique du procédé doit être considérée dans le fait que l'on façonne (profile) de la. viscose peu mûrie, présentant une relativement faible viscosité de filage, dans un bain de filage ordinaire d'acide sulfurique contenant des sels, que l'on

  
 <EMI ID=1.1> 

  
plastifie ensuite à nouveau, et qu'on soumet ces fils à un étirage poussé et les fixe immédiatement âpres.. Dans'la mise en oeuvre du procédé, on file dans un bain de décomposition une

  
 <EMI ID=2.1>  

  
 <EMI ID=3.1> 

  
amélioration des propriétés textiles telles que l'allongement et

  
 <EMI ID=4.1> 

  
qualités restant égales, lorsqu'on emploie, peur un haut degré de polymérisation (d'environ 400), de la cellulose utilisée, des

  
 <EMI ID=5.1> 

  
La concentration de la viscose également a en l'occurence une importance décisive. Ainsi qu'on a en effet pu l'établir

  
 <EMI ID=6.1> 

  
 <EMI ID=7.1> 

  
sensiblement avec la concentration de la solution et avec elle

  
 <EMI ID=8.1> 

  
 <EMI ID=9.1> 

  
la rassure où cette structure apparaît, se modifient également

  
 <EMI ID=10.1>  

  
 <EMI ID=11.1> 

  
tent considérablement. Il faut remarquer en l'espèce que, par suite de la modification irrégulière ces résistances à l'état sec et à l'état humide, les résistances relatives à l'état humi&#65533;.

  
 <EMI ID=12.1> 

EXEMPLES. 

  
 <EMI ID=13.1> 

  
de 30 mètres par minute, la vitesse de sortie (extrudage) de la viscose et.la vitesse d'entraînement devant être égales. Apres que l'on a fait passer le fil par un bain d'eau à 35[deg.], pour écarter l'excès de liquide du 'bain, on le fait passer par un entonnoir de filage qui est traversé par un liquide qui fait gon-

  
 <EMI ID=14.1> 

  
traînement rapide du faisceau de fils par le liquide dans l'entonnoir, il est nécessaire de maintenir le titre total en des-

  
 <EMI ID=15.1> 

  
pérature que le bain de précipitation.

  
2) On procède comme dans l'exemple 1, mais avec cette, différence que le troisième bain, servant au durcissement, est fai-.

  
 <EMI ID=16.1> 



  Manufacturing process of artificial products such as threads, fibers etc. having good properties of use, to. from viscose.

  
In an earlier patent, a manufacturing process was described, from viscose, of artificial products such as threads, fibers, etc. exhibiting good usage properties. The characteristic of the process must be considered in the fact that one shapes (profile) of the. poorly ripened viscose, exhibiting a relatively low spinning viscosity, in an ordinary spinning bath of sulfuric acid containing salts, which are

  
 <EMI ID = 1.1>

  
then plasticized again, and that these threads are subjected to a thorough drawing and fixed immediately after. In carrying out the process, a mixture is spun in a decomposition bath.

  
 <EMI ID = 2.1>

  
 <EMI ID = 3.1>

  
improvement of textile properties such as elongation and

  
 <EMI ID = 4.1>

  
qualities remaining equal, when using, for a high degree of polymerization (about 400), of the cellulose used, of the

  
 <EMI ID = 5.1>

  
The concentration of the viscose is also of decisive importance here. As we have indeed been able to establish

  
 <EMI ID = 6.1>

  
 <EMI ID = 7.1>

  
noticeably with the concentration of the solution and with it

  
 <EMI ID = 8.1>

  
 <EMI ID = 9.1>

  
reassures her where this structure appears, are also modified

  
 <EMI ID = 10.1>

  
 <EMI ID = 11.1>

  
try considerably. It should be noted in this case that, as a result of the irregular modification of these resistances in the dry state and in the wet state, the relative resistances in the wet state.

  
 <EMI ID = 12.1>

EXAMPLES.

  
 <EMI ID = 13.1>

  
of 30 meters per minute, the output speed (extrusion) of the viscose and the driving speed must be equal. After having passed the yarn through a water bath at 35 [deg.], To remove the excess liquid from the bath, it is passed through a spinning funnel which is crossed by a liquid which do gon-

  
 <EMI ID = 14.1>

  
rapid dragging of the wire bundle by the liquid in the funnel, it is necessary to keep the total titer below

  
 <EMI ID = 15.1>

  
temperature than the precipitation bath.

  
2) The procedure is as in Example 1, but with the difference that the third bath, used for hardening, is made.

  
 <EMI ID = 16.1>


    

Claims (1)

<EMI ID=17.1> <EMI ID = 17.1> <EMI ID=18.1> <EMI ID = 18.1> <EMI ID=19.1> <EMI ID = 19.1>
BE455878A 1943-03-26 1942-12-15 BE455878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE904302X 1943-03-26

Publications (1)

Publication Number Publication Date
BE455878A true BE455878A (en) 1944-06-30

Family

ID=6861810

Family Applications (1)

Application Number Title Priority Date Filing Date
BE455878A BE455878A (en) 1943-03-26 1942-12-15

Country Status (2)

Country Link
BE (1) BE455878A (en)
FR (1) FR904302A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL227978A (en) * 1957-06-21

Also Published As

Publication number Publication date
FR904302A (en) 1945-11-02

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