DE346830C - Artificial thread - Google Patents

Description

GERMAN EMPIRE

ISSUED JANUARY 9, 1922

R EI CH S PATE NT OFFICE

PATENT LETTERING

- ■ te 34683.0- CLASS 29 b GROUP 3

Lazare Drut in Villeurbanne, Rhone, France.

Artificial thread. Patented in the German Empire on May 16, 1920.

According to the Union Treaty of June 2, 1911, priority is due to this application of the application in France on May 13, 1919.

The previously known hollow artificial threads are tubular in shape, d. H. they have a continuous tube cavity. The subject of the invention is a hollow artificial thread, whose characteristic is that

it is not a continuous tube-like cavity, but a series of small independent ones Has cavities caused by the creation of bubbles in the during its manufacture mass forming it are generated. These

So bubbles, even if they are elongated in shape, are separated from one another by partitions separated, which prevent the thread from being flattened when drying. To make the air bubble trapping Any solution that lends itself to artificial fabrication can be used for artificial thread Fasem is suitable. So you can use for the production of the new hollow synthetic thread, for example Use viscose, copper ammonia cellulose solutions, collodion, gelatin, cellulose acetate, etc.

To date, all textile products made using such solutions have existed from full threads. The trapping of air bubbles inside each synthetic thread completely changes the appearance of the threads or the goods processed from them and gives them the same properties and virtues that full synthetic threads lack. So are z. B. the known artificial silk is heavy and translucent and also feels cold to the touch. In contrast, the new thread is light, opaque, and feels great warm on.

Of course, when making the thread, one can determine the amount to be introduced into its mass Dose air bubbles or the like at will and in this way give the thread a wide variety of properties. Goes for example, from the solutions customary for the production of rayon, see above you get a textile product that has exactly the appearance of wool and looks exactly like it Wool to the touch.

Any other can be used in place of air

use suitable gas or mixture of gases.

Of course you have to use gases that have no effect on the solutions used,

z. B. Oxygen, Hydrogen, Nitrogen, etc.

The introduction of air or gas bubbles

into the threads can be done using known means, e.g. B. by changing the chosen Solution emulsified with air. This emulsion

♦ 5 can be prepared using the means customary in industrial practice,

z. B. by blowing air directly into the solution or by means of known emulsifying apparatus or by means of injectors, by impact, etc.

The emulsion obtained in this way has sufficient resistance to produce the threads by means of ordinary spinnerets, such as those commonly used for the production of rayon to enable. The resistance of the emulsion can also be increased by substances such as soap, egg white, gelatin, etc. are added to the spinning fluid.

Of course, the process does not only extend to the production of threads, but also on the production of panels, strips, tapes, films, etc., which contain air bubbles o. The like. Included.

The artifact which is the subject of the invention can be just like the ordinary Artificial silk can be subjected to the action of dye baths.

The process described relates to the production of continuous cohesive Synthetic threads. But it can also be used for the production of unrelated textile fibers are used, which are spun into threads by mechanical means.

Claims (3)

Patent Claims ». 1. From the solutions used for the production of artificial fibers, in particular from viscose solutions, copper ammonia solutions, collodion, gelatine, cellulose acetate etc. manufactured synthetic thread, characterized in that the same in its' whole extent or only partially air or Contains gas bubbles, which are separated from each other by partitions and during the manufacture of the thread in this be generated. 2. A method for producing synthetic threads according to claim 1, consisting in that the solution intended for the production of the threads with air or gas or an indifferent one Emulsified gas mixture and then the emulsion thus formed extends through nozzles to fine threads, which partially or are completely riddled with bubbles. 3. The method according to claim 2, consisting in that the emulsion to be uninterrupted Products such as B. panels, strips, ribbons, fumes, etc., stretched out or closed Disjointed fibers are processed, which are mechanically spun into threads will.