DE7005397U - MULTIPLE YARN CONSTRUCTION. - Google Patents

Description

PROF. OR. DR. J. REITSTÖTTHR DR.-ING. WOLFRAM BUNTE DR. KARL GEORG LÖSCH D - SOOO MONCHIN 11, BAUKRaTRAMK at.PMNNiIF IOM1> ST · ■ ·>

Munich, February 16, 1970 M / 9923

GERRIT VAN DELDEN & CO. 4-432 Gronau in Westphalia

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The present invention relates to a twisted yarn consisting of at least two twisted yarns Multiple yarn construction, t

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Multiple yarn constructions made from twisted yarns have so far been using twisted starting threads or yarns have been produced with the same direction of rotation, which are then twisted together with the opposite direction of rotation to form the finished multiple yarn. In this case with the direction of rotation of the output threads the twisting process running in the opposite direction of rotation, the twisted output threads are partially untwisted or opened again. In the case of textile fabrics in which a pole is formed, or in which it is a

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is pure flat woven fabric, there is, however, a need for multiple yarns that are not smooth in the usual way are, but rather bring about special effects. The present invention is based on the object of creating such an effective multiple yarn which has the good physical properties of a smooth multiple yarn.

This object is achieved according to the invention with a multiple yarn construction of the type described at the outset, in which at least one output yarn has a direction of rotation that corresponds to the direction of rotation of the multiple yarn construction and at least one output yarn has an opposite direction of rotation. In this case, to achieve the desired effect and to avoid the "Kringelns of the finished multi Zwirnes ^{n is} the twist number per meter of the starting threads or yarns, and the rotation speed of the plied yarn to be properly matched. According to one embodiment of the present invention, the rotation numbers per 'meters of At least some of the starting threads or yarns exhibiting opposite directions of twist are of the same size and the number of twists per meter used in the production of the multiple yarn from the twisted starting threads is also the same as the number of twists per meter of the starting threads. However, embodiments are also possible in which the number of twists per meter of the starting threads or yarns having at least partially the opposite direction of twist are of different magnitudes, the number of twists per meter used in the production of the multiple yarn from the twisted starting threads also being different i st like the number of turns per meter of the output threads. For example, with a two-ply multiple yarn construction, three different numbers of turns per meter can be used.

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The coordination of the speeds per meter is, as already mentioned above, important in order to avoid "curling" of the finished multiple thread or game, since this "ringing" brings with it certain difficulties in the further processing of the finished multiple yarn. The "curling ¹ *" occurs in particular with a yarn that is not twisted, for example by steaming or fixing. By correctly coordinating the number of twists per meter in the starting yarns and in the twisting process for producing the finished multiple yarn, it is possible according to the invention to cut the yarns and to process multiple yarns without reducing the twist, which is extremely advantageous.

The Mehrfaohgarn Konstruktlera according to the invention, 'the so-called "Differential-Twist" is produced in such a way that at least two twisted starting yarns are produced in a manner known per se twisted with each other, the direction of rotation during the twisting process with the direction of rotation of at least one starting yarn matches and is different from the direction of rotation of at least one starting yarn. This is how it comes to the Appearance that. the yarn twisted in the direction of rotation of the finished multiple yarn continues to twist, while the opposite twisted yarn opens again - which is why the term "differential twist" was chosen.

The starting threads used for the multiple yarn according to the invention can be made from spun yarns from the two- or three-cylinder area as well as endlessly textured Threads or bundles of capillaries exist. The multiple yarns or differential twists according to the invention can, as already mentioned above, be used in all textile fabrics in which a pile is formed, or in which it is a pure flat woven fabric.

The following are embodiments of the invention Multiple construction based on the drawing in detail explained «Show:

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Fig. 1 shows a thread construction according to the prior art and

Pig. 2 to 6 different embodiments of the multiple yarn construction according to the invention.

In Pig. 1 is a schematic representation of a thread construction according to the prior art, which is made by twisting two twisted starting yarns, wherein the two output threads have been twisted with one another with the same direction of rotation (S or Z twist), while the direction of rotation during the twisting process for the finished multiple yarn is opposite to the direction of rotation of the output threads.

In Hg. 2 is a according to the invention in a schematic manner Figure 3 illustrates a multiple yarn construction formed from two parent yarns having 150 turns per meter (150 T / m) are pre-twisted, but one output thread has an S twist and the other output thread has a Z twist. The finished multiple yarn is obtained from these starting threads by twisting them with 150 turns per meter in an S-twist.

One according to Pig's scheme. 2 formed according to the invention Multiple yarn construction consists of two Ferlon threads with 1140 den / 1 and beige or gray parbe, whereby the beige Thread with 120 turns per meter in S-twist and the gray thread also with 120 turns per meter, but in Z-twist are pre-turned. The finished end thread with 1140 den / 2 is made from the above-mentioned starting threads by twisting with them Obtained 120 turns per meter in the S-twist. Two samples of this multi-yarn construction after processing too a textile fabric are submitted attached.

In Fig. 3, a multi-strand yarn construction according to the invention is illustrated in a schematic manner, which is formed from two starting threads, which with different Twists per meter [Vorzwirn I with 150 T / m Z (or S) and Vorzwirn

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twist II with 120 T / m S (or Z)] are pre-twisted, whereby the one output thread has an S twist and the other output thread has a Z twist. The finished multiple yarn is made from these Outgoing threads are obtained by twining with 100 twists per meter in an S twist (or in a Z twist).

In Fig. A to 6 further multiple yarn structures according to the invention, which are formed from more than two starting yarns, illustrated in a schematic manner. "S" and "Z" mean S-twist or Z-twist, while "xT / rn" expresses that the respective starting yarns or multiple yarns have been pre-twisted or twisted at the same speed per meter. The embodiments according to FIGS. 4 to 6 can, however, also be formed in such a way as is illustrated in FIG. 3, that is to say with different numbers of turns of the initial threads and the finished multiple yarn construction. As can be seen in particular from FIGS. 5 and 6, in the production of the multiple yarn constructions according to the invention, multiple yarns produced by twisting twisted starting threads can be used in which the direction of rotation of the starting threads is the same and the direction of rotation during the twisting process is opposite to this direction of rotation of the starting threads, as it is the case with the embodiment illustrated in FIG. 5, or in which these multiple yarns used as starting material have themselves been produced by the method according to the invention, ie using twisted starting threads with opposite directions, the direction of rotation during the twisting process with the direction of rotation of one output thread and the direction of rotation of the other output thread is opposite. Such multiple yarns are used, for example, in the multiple yarn construction according to the invention illustrated in FIG. 6. In the multiple yarn construction according to the invention, different multiple yarns produced according to the above variants can be combined. The inventive

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moderate Mehrfachgarakonstruktior, kar <; thus from different Multiple cooks are formed «* ve.-ohe in turn consist of at least two twisted starting threads, which according to have been twisted according to the prior art or according to the present invention. All such combinations that result for the person skilled in the art without any inventive step, fall within the scope of the present invention.

The correct coordination of the number of twists per meter of the starting threads or yarns and required according to the invention the number of turns of the multiple yarn on each other depends on the thread or yarn material used, the desired extent of the differential twist effect and the like and can by the person skilled in the art based on the teaching according to the invention can be determined in any given case without any inventive step, possibly on the basis of simple experiments with different speeds of rotation. The number of turns of the starting threads or yarns and the number of turns of the multiple yarn construction must, as already mentioned above, be coordinated with one another in such a way that, on the one hand, the desired Differential! Dwi8t effect achieved and on the other hand a Curling of the finished multiple yarn construction is avoided.

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Claims (7)

| Cl Mil H I · I ti · »I ■ | ll I · · · J • • III ··! / CLAIM 1. Consists of at least two twisted yarns through Multiple yarn construction produced by twisting, characterized in that at least one starting yarn has one with the Direction of rotation of the multiple yarn construction has the same direction of rotation and at least one output yarn one has opposite direction of rotation. 2. Multiple yarn construction according to claim 1, characterized in that that the starting yarns have been twisted with the same number of twists per meter y & r. 3. Multiple yarn construction according to claim 2, characterized in that that the multiple yarn construction twists with the same number of twists per meter as the starting yarns has been. 4. Mehrfachgam construction according to claim 1, characterized in that, that the starting yarns have been twisted with different numbers of twists per meter. 5. Mehrfachgam construction according to claim 4, characterized in that, that the multi-yarn construction twists with a different number of twists per meter than all of the original yarns has been. .6. Multiple yarn construction according to one of the preceding claims, characterized in that the starting yarn is a multiple yarn twisted from twisted starting yarns is used. 7. - Multiple yarn construction according to claim 6, characterized in that that the multiple yarn used as the starting yarn is a multiple consolidation according to claims 1 to 5.