DE1660151A1 - Method and device for producing a twisted living yarn and the yarn thus produced - Google Patents

Description

DR. E. JUNG AND DR. VOLKER VO88IU8 PATCNTANWKLTC

MÖNCHEN 23 SIEGESSTRASSE 26. TELEPHONE 345067 · TELEGRAM ADDRESS: INVENT / MONCHEN

September 13, 1965

AKlT 982

Dr. Expl.

ALGEMEHE KUNSTZIJOE UIiIE H.V. Iq Arnhem (Holland)

Method and device for the production of a twisted wire Yarn and that ap manufactured yarn

Priority; September 14, 1964 / USA Registration Mr. 335 9ST

The invention relates to a method and a device Manufacture of a two-ended yarn from a thermoplastic resin Polymers «in which a high thread temporarily pressed * on the running thread by Bückatifen is heat-set whereupon the yarn after cooling its high Thread loses and is caught up.

009851/1862 bathroom "WM".

Because of their elasticity, “zwirnelastleoht” yarns are used in the textile industry for products such as stockings, hooks, women's underwear, support garments, shirts, sportswear, etc. For other types of application, the elasticity of the twisted yarn may not be as great as is necessary for support hosiery, for example, but it may be sufficient to achieve a general improvement in the fit of the garments.

Twisted yarns of the type mentioned above can be used in various ways known methods can be produced. An ioloaea procedure consists, for example, in »putting a high swim on the thread, to be fixed and twisted back in packet fors by heat treatment. Another known method consists in temporarily twisting the yarn with the help of a false twisting device is added to the high-twisted state and is thus fixed.

Both processes have the disadvantage that in addition to production of the yarns require additional process steps which require special equipment and treatment. This makes the yarn more expensive, especially because the production speed is lower than in other crimping processes. The above ala known method is that a twisted yarn through one or more twisting barriers is pulled, whereby the ia

009851/1962 bad original

■ -3- '

(tern hinge! "thread" urüek-striped "lyd. Brat when the iurlidkgeetxeifte Zwirn has earned a high IiTeau, is «in

"j

part clay him binter dl · twist barriers or barriers soblüpfen and ee will «In equilibrium between dom ZwimnlTeau Tor and made near the twisted barrier.

Although through the fixation of this high thread «in twelve living areas · Yarn can be made, dleeee process has dooh too concerning the Haohteile.

Zunäahst it is necessary _t assume a twisted yarn, so the yarn Torgezwirnt be aufi. But this yore-twisting was very expensive, especially when it was done in a separate work step.

The invention is now based on the object of a Terfahren lur To provide that can only be carried out with a few additional resources and without additional procedures? «NaaOhritt · enables the production of a twine-living yarn that practically brewable for all types of application of such a yarn is. Another object of the invention is to produce such a yarn at high speed and at low cost.

009851/19 »?

Daa-Yerfahren according to the invention let known thereby,. da6 dl · Placement dee through the fan of a ringwire spindle Surüok-striped high threads takes place in a zone filier at least a part of the thread runs freely over the surface kannι whereupon the yarn is collected on the ring spindles ·

The Zv, irn can most easily surüeklauf if according to the invention the thread tension hardly or at all during the fixation does not increase, for example what daduro * can be achieved can therefore increase the fixation on a slightly curved one Plate or in a heated straight pipe. A certain twisted liveliness can also be preserved, if the thread is fixed in yarn on a heated pin in order to which the yarn is led around. This yarn is also suitable for various types of application *

According to the invention, the yarn is given a considerably higher twist liveliness when the heat setting of the surface is met Twisting takes place immediately after the yarn has been subjected to a Streokproseee. Such a Streokprosess is one of the necessary treatments of by melt spinning a thermoplastic polymer made yarn. That Stretching brings about an orientation of the polymer molecules in the yarn «which contributes considerably to the dexterity of the yarn. In the

009851/1982 bad original

Heg ·! the stretching is carried out on an aogeisasitttae swirnnaeohlne, on which the Q®m «oeret is stretched and then on a twisting spindle as Garopiekel tingaji. — It is.

7m very much alive 0 @ rn instead of a smoothea garnea eu "MUST inherit" as atissser the already necessary scattering environment not subjected to any susätslleJisn treatment »« It is sufficient if one the yarn * after it asked the draw roller yerlaa ^ ta and before it is added to the balloon of the ring-spinning spindle, via or through which a medical organ leads

It is also ain Yerfabren beJe & nnt * "at weloham % in .Sam thereby zwirnleh & naig geinaclit% ird, ü && aen it from * ln ^ r over © in Heisorgan, duroh ei © Swirnbarri # rs isd eu a ^ r ring-spinning spindle for this ^ QTt & imen e should the yarn still be a bit soft when it leaves the Znirnbarrier. As a result, the thread at this stall® reaches an approximately higher level than the thread, which is given the ring twisting spindle to the Gern duirah. A disadvantage of this known process is that The twine is less legal in the method according to the invention and is only fixed within a very short state at a falling temperature, consequently the vitality of this twine is very low

009851 Mt *! ^BATH

• ttlerue * tas known · Terf ehren not in combination ait a ·· 8treekprose £ feasible, or at least not carried out, requires a special stage of treatment, which moreover, the yarn only has a low elasticity τ · γ, which disappears very quickly with use,

The results achieved with the method according to the invention mainly depend on where the runner is can hold back a high thread. Venn the runner a higher husuae? has and, as a result, lighter and thinner let, this should give better. However, if the runner is so easy there may be difficulties in winding up »«

It was aun gsfunujn, iaü even without the need for an easier one Nevertheless, the runner's thread should be streaked back on a hire can, that is holier than usual, pies can be done with the invention can be achieved by rersohiedene measures that are either separated or can be used in combination with one another. One method is that the yarn is guided through a runner, which at the point where the yarn is lined sharp edge provided 1st.

Another method is to run the yarn in the circumferential direction of the runner threaded into this and then turned around the yarn exiting the balloon around to the ring twisting spindle to be led.

0Qt * S1Mlt2

BATH ORIGINAL

Finally, a third method for finding threads consists in giving at least one of the threads an out-of-round shape with at least a flattened side before the thread is pressed on. JSlneelftt the old one solölien unru & äen Quereehsitt can be obtained through various processes that are known to themselves. Examples of individual processes sisjds the SohMlsepisiMra τοη outline single threads from non-circular spinnerets "deformation for single threads snisoben ^ reSwaleen or Zisiiea the same over sin" or several sharp edges.

Ba the likes of the invention treated in their production less subject to mechanical and thermal treatments than other yarns with the same twisted liveliness, they show less quality deficiency than the known yarns, what means a significant advantage.

The invention also relates to devices with a resistance to pressure of the described procedure, especially on an 8treok * - zwirnoasshine, with we! rather between the Streekwalse and the upper ones Thread guide of the twisting spindle at a certain distance A heating element is provided by the drafting roller. As mentioned earlier, let this heating element preferably be a shelf or a hot pipe. The rotor of the ring twisting spindle is preferably designed in such a way that it is at the point of contact with the yarn

009851/1912

* AD ORIGlNAt

• has a sharp edge.

Ia the drawing let the subject matter of the invention on tape as an example Execution forms schematisoh veraneohaulioht.

FIG. 1 shows a goal direction with a marriage pen and FIG shows a variant with a shark plate.

In both figures, a non-stretched polyamide yarn is nit (I) beseichnet that from a spool (2) to a feed roller (3) runs. The yarn is placed in several soles around the roller and the associated tension roller and then su a Streokwalse (4) led »around which there are similar catfish in several loops walking around.

The stretching point of the game is located on a stretching pin (5), around which the yarn runs in one direction. The yarn (6), which rerläSt the draw roller, runs through an upper thread guide (?) And a traveler (8) of a ring spindle before it opens an avenue supported by the hanging spindle (9) is wound up

Between the draw roller (4) and the upper thread guide (7) is the thread passed over a heated organ. In the case of the one shown in FIG Device, the heated organ is a pin (10) around which the yarn is guided. In the case of the in Flg. 2 shown

00985W1962

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th Yorriohtung 1st fti * of this purpose a plate (12) is provided, which is slightly curved and electrically heated. On the 1st a thread guide (11) provided so that the thread (6) over ale plate (12) runs on a »prescribed route.

The thread, which is given to the piece of yarn in front of him by the movement of the traveler, can only then be passed over the traveler slip when he is on a level that is much higher than that of the twist that remains in the wound yarn. Much of this high Twist can run over the heating pin (10) or the flat (12), so that it is possible to fix this thread well 'Since the thread fixed in the yarn is higher than the second thread in it, there is a reed twist in the end product, which makes the thread liveliness certainly.

The following examples explain the effect of the lower ones Remaining twist in the finished yarn. A kuree follows for this purpose Description of the procedure used to determine the Reetdrale is used in various yarn samples · Ib Bsadel are UUcro balances available, which are used to determine the twist in thread structures, e.g. in a synthetic yarn, to serve on electrical power. For example, the Cahn-Instrument Company in Paramount, California, an electric balance that can be converted se that one end of a twisted yarn on an Indian

009851/1912 Sad original

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tornadel can be inflated, whereas the other · Sud · dee Oar « η ·· β · § · η rotation is secured. A heat present in the yarn * . twist causes a deflection of the ladel out of its full position. I apply a current to one of the coil arranged in the load the twist dea Garaea can be balanced and the needle in hers lullet position to be returned.

The current strength required to bring the slide back into its full position is directly proportional to the residual twist present in the yarn sample.

Duroh balancing the measuring device in its filling position Before each test, any external magnetic disturbance is withheld.

In all of the following Baiepiele, the twist values are given by the stroke strengths in ttikroaapwre. If desired, these values can be converted into a twist guard in Hilligraaa centimeters by multiplying the clock factor 0.15. Since the numbers are, however, needed only to the Garnproduktee genäB of the present invention to ansugaben since · ratio of the residual torque values to those of the usual Falsohewirngarna, the twist is not specified in more conventional units. Each twist reading given in the following was obtained by twisting five pieces of thread into a strand, one end of the

009851/1982

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Strand fixed and the opposite end, never described above, attached to a measuring needle. As far as possible, all yarn samples were prepared and tested in the same way .

Example. 1:

In order to obtain a comparative benchmark, samples were made in strand form from a 15 denier honofilanent itylon yarn which had been falsified in the usual way and tested for the above-mentioned manner. The values obtained appear in the following tables. The samples were performed with yarns described as "~ direction falechgezwirnt were both" S "in Z ^n.

Tabel

Try Mr.

Thatched twist

^M S "» thread "Z" -2wira 1 109 96 2 112 107 3 130 119 4th 119 103 5 120 102 Average 118 105

009851/1962

BATH ORIGINAL

Both false twisting methods result in "a product whose twisted liveliness is aimrelative" for the desired purpose. Dleae manufacturing methods however, they are time consuming and therefore expensive. Therefore, the production of a living yarn with a larger production twist offers a divergent process openly "irtao-like advantages"

Example 2s

In a first series of tests, a 15/1 nylon yarn, corresponding to that of the previous example, was treated with neon using the method according to the invention. Since the yarn is processed in a conventional stretch twisting machine, which can be modified by applying a hot plate which has been kept at 160 ° C. Different samples of dleoes Garnee were treated, whereby "S" - old also "Z ^M -Zwira" was fixed.

The results obtained are the following

Table II

Yerouch Wr.

1 2 3 4 mean

reel ^ft S "twist buxom • ι 99 Il ^^ Φμ§ 4 4% Μ
jr. -mW φφ ΛΜψ§ JLJ ^ AJ 104 96 104 91 114 105 104 99 107 98

009851/1962

r 13 -

Each 4 * τ above entry represents the ttttelwt twist and the bottom row etellt d «s *, e ** einf *** e Af» iv ₅ . tel all · * Uhtersuohungen, both the "S ¹¹ - as the cloth for" I 'stow. The old duality obtained by the method according to the invention is in comparison to dom Beetdrell dee wnixrt? living yarn of the Belapiele 1, «elohee eaf ttbliohe way produced hurdle, very satisfactory.

Beiöpiel3x

A 15/5 polyester yarn was used by Tersohiedenen Teoperaturen Hot Plate Treated To The General Bfi ^ eaa Of Ivirs Liveliness this yarn is the ratio to which in example 1 τβπ »ended customary faleohwisted uylon yarn. Both "E" as auoh "Z" -placed yarns were used at low temperatures checked? the results are shown in Table IXX.

IaUUe III . ·

Vtreuoh Sr, ■ S. 150 ⁰ O Z Bed « rallr S. 180 ⁰ O Z 91 67 89 92 88 66 97 82 1 80 68 91 90 ? 89 69 100 80 3 88 76 - 82 85 4th 87 69 92. 87 5 Average

009851/1902

BATH ORIGINAL

This results in these versions, because the swirl bead corresponds to the polyether thread not but that of the Wy- ' longarae of Examples 1 and 2.

Example 4 »

A single thread of 40 denier propylene yarn (4qb) was examined in order to determine the timing of the fixation. At a look! of yarns of high twist during stretching or dee was afterward immediately fixed at 16O ⁰ C.

For comparison, the yarn samples were prepared in The white that was first stretched the yarn and wound up without twist "ee was then stored for 24 hours and sehlleSlioh fixed according to the invention also at 160 ⁰ C, a high thread.

The results of this series of tests are shown in the following table

Table 17

Attempt Kr. 1 Reat twist Z not cont inulerlioh 2 continually S. Z 3 S. 69 ο 68 40 41 86C 5 72 76 36 42 cn Average 60 75 45 44 77 61 43 45 co 76 74 45 46 α » 75 42 44 72

Similar results were obtained and Ontereohiede old elnea 40/6 and a 15 / L-Xjloa & srx _f * β in the "* 180 ⁰ C fixed me · the. Obviously, the deadness of the co-continuously treated yarn is "significantly * higher than that of the" inte discontinuously treated yarn "

Example «

A sample of the 40/6 Hylon in the device was shown to be included in the device. I and another sample of 40/8 nylon yarn “it dar Torriohtung ait Heiaplatte gaste fig. 2 treated. The stylus shown had a Durobaeaser tou 60 aa and the plate eggs had a wide design afora 20 ea long. 8owohl represents AUOH pin old plate were erhitat to 160 ⁰ O. VIa from «· *» abaUe areichtlloh, is the vitality of the old dar flat fixed Oarnee beeser as that of the old daa pin fixed yarn. In addition, da · au · daa Oarn hargeatelle Qene »· is more uniform than the yarn made from dta old pen beba & deltan yarn. This is on the Teteache mrttoksufUhran »that the plate fixes the thread over a greater length of thread as the pin.

009851/1962

T a b β 1 1

Yereuoh Ir. Heetdi plate Pen 90 1 51 92 2 56 90 3 57 87 4th 5? 80 5 51 80 6th 49 87 • 7 53 89 β 50 88 9 49 90 IO 45 87 11th 42

Examples »

La finer further row of rows north of 4 BinfIuB of the 8treekung The invention dealt with the twisted viability of the invention earae · checked. A 4/8-nylon thread was made into a Latin-style Aueaafr struck and indelibly afterwards the one who had been pulled back by the runner became Zwirn la Gern fixed. In the table below, each slide represents 1 Iv? it t a duration τ of five different Measurements.

009851/19 * 2

BATH

SaNUe VI

Stretch ratio

-S- ^ lrii "S ** l" ira 2.60: X 86 88 2.90 j 1 87 89 3.00: 1 85 86 3.10 ι 1 79 83. 3 »Γ: 3 t 1 7 * 76 5.30 ι 1 69 72 3.40; 1 - 69 67

The best results were with a clay draw ratio about 2.90: 1, which is also preferable for this type of yarn for other reasons.

Example 7 «

The influence of the fixing temperature only de means of a selection from tests with 40/8 and 15/1 nylon yarns beatiaat, oil were treated in the device according to FIG. Each · the Test result recorded in the following table M. represents the third average of the results obtained on six Points of a draw twisting machine were determined.

009851/1962

BAD ORtGINAt

f ft b 1 1V VII

Temperature (° β) 40/8 Hfrlon % Best twist 15Λ Mylon 8th 79 S. Z 150 50 78 60 60 155 74 93 71 74 160 81 92 76 85 165 82 91 79 86 170 94 89 82 87 175 73 82 84 88 180 80 94 70 81 185 86 96 86 78 190 76 81 80

This table shows that for both types of genes there is less thread liveliness is obtained when calibrating the fixation door in Range from 165 to 175 ° C moved «Stockings made from these yarns raise a * better site and an advantageous tree Ausoenen. , '

Examples

In the following series of tests, it was investigated whether «wipe

the weight of the traveler * and the quality of the yarn produced

009851/1962

BATH ORIGINAL

ordered an admission. It has been found that this term is not characteristic, ie that η which was found in the series of tests described above. Dooh therefrom can "ground concluded that the use of sound behaves nienäJ let voreueiehen ig laiohten Ll.ufern to a gewifien degrees.

Using a # 24 runner (40 mgr.) Resulted in a dual liveliness that was $ 7 to $ 8 greater than that "recovered from a # 18 (100 mgr.) Runner" old. This difference is not primarily due to the weight loss of the runner's ears, but to the diaensioaen. Of the same on the base of the yarn. This could be confirmed by the chiseled treatment of a yarn under the same conditions, but for the further treatment of the runners by removing i ^ teriol in places where the earn does not come into contact with the runners. It was found that this a.ie Zv, inlived it does not affect the yarn produced.

Bite game9 *

Bb it can be shown that the way in which the yarn is guided around the runner and around the runner has a negative influence on the life of the thread. In an attempt with a <0/8 nylon thread, the runner was threaded in a.iei different ways. In both cases the thread was used as usual

0 0 9 8 5 1/19 6 2 bad original

Way of the ball by the runner in its movement eriontung led, but in the first case the yarn was then directly good Spindle guided, whereas ee in Pell dee "reverse" threading « zuerat auaeen was wrapped around the balloon thread, beror t su got the spindle. As a result, the degree of Garouato conglomeration bigger by the runner.

The results obtained are shown in the table below.

Table H. Runner Ho. 'Reetdrall

normal threaded reversed

threaded

20 98 150

22 100 142

The "reverse threading ¹¹ generates a tatsäohlloh beträohtliohe improvement which must be attributed to the increased friction between the yarn and the rotor. As a result of this increased friction, the rotor eurüokstrelfen the twist in the yarn better.

009851/1962

BATH

The last-mentioned effect can also be achieved by other means, e.g. by using single threads with a flatter surface. The spinning of threads with out-of-round · * cross-grain is a process that is well known and is also known to produce single threads with a flattened contour by pulling them over a hard object or by deforming them between nip rollers «

An improved pulling back of the thread by the traveler can also be achieved by changing its shape.

Example 10:

A 40/8 nylon yarn and a 15/1 nylon yarn were treated on an apparatus according to the invention using runners with matched weights (ie runner numbers) and shapes. In addition to normal, commercially available travelers, travelers have also been used which have a sharp edge worked in at the point where the yarn comes into contact.

The following table shows the results that were obtained in several tests in which both ¹¹ S "and" Z ^{rt "} threads were fixed in the yarn.

009851/1962 bad original

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Table X

modified runner Z Balloon tension normal runner Z Balloon tension Runner Ho. keet twist (Gram) Bed twist (Grama) S. 63 S. 61 40/8 nylon 82 55 · 86 75 18th 66 30th 57 50 20th 92 105 37 85 15/1 Hylon 99 11th 94 19th 23 * 114 14th 38 22nd 24 104 97

Obviously, the herabeeteung has won the runner and the So hardening of the running edge has the same effect on the manufactured Yarn. This could expect herds, since a more lucrative runner made of steel wire and a smaller thermoset

Example 11:

In the last series of tests, the influence of the various fixing devices on the course of the thread in the yarn was determined, both in an embodiment in which the yarn was treated immediately after it was stretched, and in an embodiment in which it was previously stored

009851/196 2

The experiment was carried out with O / 8 nylon yarns that were heated to about 180 ° C on a Hoizatlft with 30 mn Durohme3eer "or on a heating · plate were fixed, carried out »

Table Xl

Fair parts

Twists per inch Continually Discontinuous

50 at the pin above below Heigplat above below

above 1 below 24 Heating plate »

Your results show that the heat if the twisted IiB yarn Above the LHufere not completely reoccupied. Consequently a considerable amount of thread is already fixed on the post. The hot plate otellfc, on the other hand, for the Twist represents an even less obstacle. Ea is therefore not possible Surprisingly, that in Example 5, the twisted liveliness it of the of the thread fixed on the plate was larger than that of the thread fixed on the pin.

009851/1962

BATH ORIGINAL

Claims (1)

FatmtBDBprUoht ι 1 · Process for dividing a twine-living thread into a thermoplastic polymer »in which a high thread temporarily printed on the running thread through RUokstrelfen is heat-deficient, before the earn close to the Ah ·· cool its high thread is lost and collected, because it is marked, that the fixation de * a Ringcwiroapindel zurüokgeetreiften high yarns takes place duroh the runner in a zone can free surUoklaufen beyond which at least part of the threads · "what daa yarn is eingeeejoeelt on the Ringwiraepindel. 2. Method according to claim I ₁ because the thread is fixed with a minimal decrease in tension. 3 * Method according to claim 2, which is known without> since the fixation takes place on a slightly curved, obtained plate. 4. The method according to claim 2, characterized in that the Fixation in a heated straight drill. 5 » Method according to one of claims 1 to 4, characterized in that the fixing of the twisted thread 0 ° 98 ^51/1962 BAD ORIGINAL takes place immediately after the yarn a Streokprozees was submerged » w - 6. Method na oh one dtr claims ^x l to 5 »daduroh characterized that the · yarn duroh a runner is guided, which lets the yarn with a sharp fuse at the contact point bit« 7. The method according to one of the approaches 1 to 6 »daduroh marked, that the yarn is threaded into the runner in the direction of rotation of the runner and then around the runner leaving the balloon Thread is fed around to the ring spindle. 8. Method naoh one of claims 1 to 7t daduroh gekem >> records that at least part of the individual threads of the cooking ·? is given a neck unrundar cross-section with at least one flat side before it is of high twisting listed A suppressed. 9. Stretch twisted machine for the production of a twisted one Yarn according to the method according to one of claims 1 to β, daduroh characterized that between the drawing roller (4) and the upper thread guide (7) of the ring twisting spindle (9) in one a certain distance from the stretching roller (4) a heating element (10 or 12) is arranged * . BATH ORIGINAL 10. The device according to claim 9 t daduroh paid, OaB tee He! «organ tint Btieplattt (12) 1st. 11. Device naoh Anepruoh 9 "daduroh gtktnoitiohntt that there" Htitorgan is tin hot tube. 12. Device naoh einea dar Anaprüohe 9 bla 11, thereby gtkennstlohnet, · that dtr Läuter (8) represent Blnganlnuiplndal (9) at the Bertihrungeetelle “It dan gladly bit one aohartan Kantf: adore is BATH ORIGINAL 003051/1162