DE1949538A1 - Process for texturing yarns - Google Patents

Description

PATENT ANWViTI. ,

DR.-ING. BY KREISLER DR.-ING. BEAUTIFUL FOREST DR.-ING. TH. MEYER DR. FUES DIPL.-CHEM. ALEK VON KREISLER DlPL.-CHEM. CAROLA KELLER DR.-ING. KLÖPSCH

KDLN 1, DEICHMANNHAUS.

Cologne, September 25, 1969 Ee / Ax / Hz

Celanese Corporation ,

522 Fifth Avenue, New York / N.Y. 10036 (V.St.A.l.

Process for texturing yarns

The invention relates to an improved method for Texturing or bulking yarn. In particular, the invention relates to a method of making a improved continuous filament yarns, one Combination of a yarn consisting of a cellulose ester, preferably cellulose triacetate, and a nylon yarn, is preferably of nylon 6,6 made by combining, e.g., plying.

The texturing or bulking of yarns turned out to be beneficial to increase the maturity and to improve the handle, the drapability, the covering power and construction of fabrics that are textured from these Yarns can be produced · For example, under Use of textured yarns fabric are manufactured, which have higher opacity and maturity when given The weight of the yarn is known when using non-textured yarn, or a lower amount of weight of the yarn used to achieve the desired level of opacity and maturity.

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Outside the front rushing. genaimtett Yörteilea jiabeii fabrics . the textured yarns generally have greater covering power and improved moisture wicking, excellent pleasing appearance and dimensional stability in use. 5 same as fabrics made from non-textured yarn., The fabrics also have a better »lint« · and pilling resistance- - can be used as fabrics from · spun yarn · ■. · ■ · -. · ■

In the production of textured bicomponent yarns from a cellulose ester such as cellulose triacetate and nylon like nylon 6,6, various difficulties are encountered. It It has been shown that in certain cases the yarn does not have good filling properties, gaps or tight and tight spots occur and numerous broken threads are formed. During the subsequent processing of the yarn often results in poor processing efficiency. In addition, it was often stated that the physical properties of the yarn, e.g. strength, are too poor as a result of texturing

The biggest problem that occurs when texturing yarn Cellulose esters and nylon occurs is the fact that the cellulose ester yarn does not move after texturing billows ("bloom") · This problem is due to the different behavior of nylon yarn and cellulose tea yarn returned during heating «The cellulose ester yarn, e.g. made from cellulose triacetate, expands to accommodate the adapt helical thread path when twisting. When turning back, the greater part of the axial tension is released worn through the nylon. Hence it is in the gelulose ester yarn ■ insufficient axial tension available to complete To achieve turning back. The consequence is that short pieces d · * Yarns retain the texturing S-twist and are longer Pieces of yarn twisted beyond the Hullag in the Z direction will. This effect occurs as a series of tight or lean spots close together

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1949531

The invention relates to an improved textured Yarn made from a cellulose ester yarn and a nylon yarn consists·

The invention also relates to a method for texturing a bicomponent yarn made of a cellulose ester and nylon, products with improved Properties. Preserved and low strength and subsequent processing difficulties are avoided.

The method according to the invention is applicable to yarns composed of a cellulose ester yarn and a nylon yarn a proportion of about 50 to 95% of the cellulose ester yarn and about 9 to 30% of the nylon yarn is made up (these percentages are based on the denier and are hereinafter referred to as denier / percent) and a total denier of from about 50 to 300, preferably from about 100 to 225. The yarn is twisted by a false twisting device in such a way that that it contains a wrong wire, which is derived from the formula

Twist ■ KA / Denier

is calculated, where K is in the range from about 400 to 750 · For most yarn titers, the twist can be in the range from about 1380 to 2360 T / m. While the yarn is highly twisted in this condition, it is heated to a temperature of about 160 to 200 ⁰ C, preferably about 175 to 190 ⁰ C for a time of 0.25 to 2 seconds, preference - about 0.5 to Heated for 1 second, especially about 0.75 to T, 25 seconds. This deviates from the conditions for texturing nylon alone, eg nylon 6,6, which is heated to a temperature of at least 225 ° C. ,

The temperature zone is on the path of the yarn in front of the Point at which the twist is introduced into the yarn, for example by a twisting device, e.g. a false twist spindle will. The twist runs back along the yarn in the direction of the fed yarn to a point where the twist in the yarn, for example, from delivery godets

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is held ■ or a brake (snubbing device). When leaving The yarn is made from the temperature zone and twisting device, for example by means of delivery godets at one speed from about 95 to 110%, preferably about 98 to 105% The speed at which it is fed to the temperature zone is continued. The latter preferred Values are also used as a feed of around + 2% to -5% to that of the temperature zone and swirl device downstream Delivery plant, e.g. delivery godets.

The yarn can be delivered from the delivery plant directly to the take-up device, e.g. one or more packages of yarn, which the yarn at a speed of about 98 to 80%, preferably about 95 to 84% of the speed at which the yarn is delivered through the delivery plant, take up, d.iu it is worked with a preferred lead of about 5 to 16% to the take-up coil.

Yarn textured in the manner described above can have a degree of liveliness sufficient to cause certain difficulties in subsequent handling and processing of the yarn. The textured yarn can advantageously be subjected to a heat treatment or treatment in an autoclave in order to largely eliminate the tendency to twist caused by the vitality of the yarn (non-torque). If the vitality of the yarn is to be reduced at least partially, the yarn is subjected to a heat treatment at a temperature of about 75 to 90 ^° C. and at about normal pressure for about 50 to 100 minutes after it has been taken up. The heat treatment may be a steam treatment followed! Evacuation and additional dry heat treatment at about 75 btisi 90 ⁰ C over a period of about 5 to 30 minutes. The last-mentioned treatment can be carried out by external heating, for example with electrical heating elements, with suction of the steam from the treatment chamber, which is not completely sealed off from the atmosphere * In this way

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the steam drawn off is replaced by hot air. It is it is also possible to dry the yarn to a temperature for 0.5 to 2.5 seconds, preferably immediately before winding to be heated from about 170 to 195 ° 0.

It has been found that within the above ranges, the temperature to which the yarn is heated in a highly twisted condition, the speed at which the yarn is delivered by the feed system _f and the height of the yarn imparted swirl important parameters for achieving a textured yarn with high or maximum maturity indicated by the crimp contraction. In addition, the range of speed at which the yarn is delivered through the delivery mechanism downstream of the first temperature zone and twisting device, the temperature to which the yarn is heated, and the above-mentioned range for the twist in turns / meter in the heated yarn are important for the achievement of a textured yarn of high or maximum tensile strength. Texturing outside the scope of the method according to the invention results in poor processability, especially in knitting and knitting.

The method is suitable for treating non-textured yarn consisting of a gelulose ester yarn, preferably cellulose triacetate yarn, and a nylon yarn, preferably nylon 6,6, with a total denier in the range from about 50 to 300, an initial twist in the range from about 0 to 3 ⁰ A ϊ / m, preferably about 60 to 197 T / m and preferably consists of about 15 to 75 individual threads.

Any false twisting devices, e.g. a friction false twisting device, can be used, but ■ a high-speed false-wire spindle is preferably used various known types are used. The spindle rotates at a speed in the range of about 30,000 to 350,000 rpm, preferably from about 85,000 to 280,000 IJpIi. In the case of a yarn made by plying

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. the twist generated by this spindle should preferably run in a direction which is opposite to the direction of the shed twist of the yarn presented · Ein im Starting yarn, any remaining twist should be used during operation the false twisting device according to the invention are taken into account, so that the yarn in the temperature ζ one the desired Has twist to get a yarn that is the one you want Has a degree of twist.

The method according to the invention is suitable for texturing of yarn at a speed based on yarn delivery in the range of about 18.3 to 160 m / minute, preferably about 36.6 to 146 m / minute, especially from about 46 to 137 m / minute.

To the due date, which is described by the above bene procedure results in essentially preserving preferably under the textured yarn during coning kept a low and even tension. It is beneficial to keep the yarn under a Tension in the range of about 0 to 15 g »preferably about 7 to 10 g and the pressure of the bail roll As low as possible, preferably around 0.9 to 1.4 kg to hold at the beginning · During the ooning, the spindle speed is reduced preferably held at about 1000 to 2000 rpm. Care must be taken to avoid excessive or concentrated tension is avoided, as a result a pulling back of the cellulose ester yarn on the nylon yarn can be caused

The textured yarn according to the invention is particularly suitable in knitted fabrics that can be produced with any single, double or left-left circular knitting machines or flat knitting machines maintain to keep mögliehst small and good maturity "During the activity, the yarn is preferably uniform with a possible

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Tension of about 1 to 5 g »preferably about 2 to 4 g »The yarn is preferred to the needles of the knitting machine Forcibly fed by delivery godets to keep the tension even. Tissues can be made from the * textured yarn according to the invention can also be made.

The yarn can be undyed or already dyed according to the above described method are textured. The coloring can be carried out according to known methods, e.g. using emulsion paints for the cellulose triacetate component and acidic dyes for the nylon 6,6 component. .

The following typical dye combinations show the versatility of dyeing combined yarns made from cellulose triacetate and nylon 6,6 is possible. The percentages of the dye are based on that Weight of the yarn based.

Turquoise (solid color)

Disperse Blue 87 0.30%

Disperse Blue 60 0.87%

Disperse Yellow 42 0.06%

Black (solid color)

Disperse Black 9 1.0%

Acid Black 107 1 »2%

Black and yellow (nylon black / triacetate yellow) Acid Black 107 1.2%

Disperse Yellow 42 0.66%

Red and white (nylon dyed / triacetate reserved) Acid Red 252 1.6%;

The fabric obtained can be colored, but is preferred the yarn after texturing is bobbin-dyed. That Yarn can also be dyed before texturing · The

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The package or the fabric is preferably made with a aqueous solution of a suitable disperse dye and a suitable acid dye in one bath. At the Dyeing of the textured yarn is preferably a careful one Subsequent washing is carried out especially for medium and strong shades to remove non-fixed dyes to remove and to ensure good lightfastness. the Liquor contains about 0.1 to 12 wt .-% dye, and the Coloring can be done at a temperature of about 50 to 120 ° 0 be performed.

The invention is further elucidated in connection with FIG. 1. In the device described there, non-textured yarn 1 is removed from the delivery bobbin 2, passed through the pigtail guide 3, around the pigtail guide and the knot guard 4 and transported on through the delivery godets 5. The yarn is then passed through a first temperature one 6 and turned up by the false wire spindle 7, ^{from which the} twist runs back to the delivery godets 5. From the false wire spindle 7, the yarn is passed on through the godets 8, from which the yarn can take one of two routes. If it is not necessary to reduce the liveliness of the yarn, or if the liveliness is to be reduced in a subsequent treatment and not as part of the texturing process, the yarn can take path A, being directly from godets 8 to pigtail guides 9 and is guided to the guide rods 10 and 11 and taken up by the take-up reel 12.

If a yarn with a reduced vibrancy is required directly from the texturing process, the yarn takes the Path B, where it goes through a second temperature zone 13 to the godets 14 and then to the guide 9 to the guide rods 10 and 11 and to the yarn take-up bobbin 12 is performed. Both route A and route B is the actual one Twist introduced by the false wire spindle 7

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by the time the yarn reaches the godets 8, is essentially eliminated.

The following table shows the twist, the value of K (Twist factor), the titer and the square root of the titer given for all yarns that are textured according to the false twisting method described in Examples 1 to 10 became"

denier denier Twist E (twist example Point in T / m factor) Mr. 5 ¹ Ik. 2 75 8.7 2087 460 6th F. 105 10.3 2170 566 5 E. 130 11.4 1838 525 4th D. 180 13.4 1752 600 1 A. 180 13.4 1840 630 7th G 180 13.4 1969 670 8th H 180 13.4 2047 700 10 J " 180 13.4 2130 725 3 σ 220 14.8 1480 560 9 I. 220 14.8 1811 680 2 B.

In Fig. 2, the twist is a function of the square root of the denier for the yarns mentioned in Examples 1 to 10. This graphic representation shows the values of the twist factor E for the yarns of Examples 1 to 10. It also shows that the twist factor K can be between about 400 and 750, as with the procedure is required according to the invention. The reference points A, B, O, D, E, F, G, H, Ϊ and J represent the value of the twist factor for example © 1 to 10.

With the yarns according to the invention substances produced are suitable for a variety of uses and have high maturity, excellent grip _for excellent opacity and bulk · They are particularly suitable for the production of garments such as outerwear, sweaters, skirts and blouses ·

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As used herein the term "cellulose triacetate" refers to cellulose acetate having less than about 0.29 », preferably less than 0.12 free hydroxyl groups per anhydroglucose unit of the cellulose molecule, _e £ u d with a bound ■ 5 as acetic calculated acetyl value of at least 50 wt .-% _t preferably at least about 61% by weight .

The "employed herein the term" nylon "is used for nylon 6,6, polyhexamethylene adipamide and the derivatives thereof, eg _e copolymers having a minor content of nylon 6 contains" The term also refers to nylon ie, polycaprolactam and its derivatives, including copolymers having a minor .Content of nylon 6,6.

The expression "LTDZ" used in the examples denotes a yarn that has a metier twist of about 5 * 9 to 9 »S T / m in Z-caution.

Example 1 .

In the embodiment shown in Figure "1 && £ device ws a plied yarn auÄndlosfädsa consisting of 83 ^ 150 nevertheless / LTDZ / 22 cellulose triacetate and 1? den-% 30/1 / 2Z / 10 nylon 6,6, a total denier of 180 den and a twist of

79 T / m in Z-direction, * # &&& through godets 5 of the first temperature zone, ie * the heater 6 and the false wire spindle 7 with one? Speed of 65 »8 m / minute fed. The wrong wire spindle 7 runs at 115,000 rpm. > 25 As a result, the yarn between the spindle 7 and the delivery belt "" 5 sews on a twist of 1752 I / i in the S-direction. The Gsom is heated to a temperature of 185 ° 0 for 1.0 second with this twist.

The yarn from the false twist spindle 7 loses most of its twist and. is through the godet »8 (first® infeed) at a speed of 67? 2 m / Miaut® corresponding to 102% of the delivery speed of the godet ^. continued. This corresponds to a feed to the delivery plant 8 with a lag (delayed © feed)

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of 2%. From the delivery godets 8 the yarn takes the path A via the pigtail guide 9 and the guide rods 10 and 11 to Garnaufnähme spool 12, where the yarn is picked up at a speed of 62.15 m / minute corresponding to 92? / O the delivery speed of the godets 8 . This corresponds to a feed to the take-up reel 12 with BP / o lead.

The wound on the spool 12 textured yarn is scoured for 15 minutes at 71 ⁰ O. Using a suitable dispersion dye and a suitable acid dye in the present Lall Disperse Yellow 42 and Acid Black 107, the yarn is dyed coil for 1.5 hours at 120 ⁰ O eiribadig. The nylon 6,6 turns black and the cellulose triacetate turns yellow. The yarn is then washed for 20 minutes at ^ Q ⁰ G. A lubricant is applied at the final rinse of the dyeing bath, is dried after which the yarn is at 100 ⁰ C.

The dried yarn is then prepared for knitting by pulling it overhead from the dye bobbins onto conical yarn body is wrapped. The textured yarn is wound at a speed of 1500 RPM, with a Starting tension of 10 g applied and the tension to Compensation for the increasing yarn speed is steadily reduced. For a package of 680 to 907 g the tension is reduced to 8 g. During winding, a suitable lubricant is applied to the yarn, to facilitate the work

A double-knitted Swiss piqué is made from the textured yarn using a knitting machine in which the yarn tension constant at 2 to 4 g and as much as possible is held evenly. The yarn goes into the knitting machines Forcibly fed in by delivery godets, which helped to maintain even tensions will.

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In order to develop the fullness and to relax the mesh of the fabric, it is treated for 3Q minutes at 105 ° C in a hot air tumbler. This machine is provided with a drum, each 18 seconds clockwise and ent ge gene. Revolves clockwise * The product is cooled with continued rolling at 60 ⁰ O before it is removed from the machine.

The goods slit open and 20 seconds at 195 ° C im Frame thermoset *

The method described above yields an active ingredient of high bulk, excellent handle, excellent Desk power and bulk »

■ Example 2

A multi-filament pinned continuous yarn consisting of 91 denier% 2Q0 / LTDZ / 34 ~ gelulose triacetate and 9 denier% 20/1 / 2Z / 7 nylon 6,6, 41 threads with a total denier of 220 and a twist provided. 79 T / m in Z-direction is made by the godets f? the first temperature ζ one, ie the heating :? and the false wire spindle 7, fed at a speed of 74 m / minute. The false-wire spindle 7 is operated at 135 * 000 rpm. This gives the yarn between the spindle 7 and the delivery godets 5 a twist of 1811 T / m in the S direction. The yarn with this twist is ^{heated to a temperature of 185 °} C. for 0.58 seconds. The yarn from the false twist spindle 7 loses most of its twist and is continued through the delivery godets 8 (first feed) at a speed of 75 m / minute, corresponding to 101% of the delivery speed of the godets 5 * This corresponds to a feed to the

Galettes 8 with 1% lag. /

The gate from the delivery plant 8 takes the path A to the pigtail guide 9 and to dea. Guide rods 10 and 11. The thread is then from the spool of thread 12 at $ 92 the speed (Coil feed), with which it is

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delivers is recorded.

The textured yarn is steamed for 75 minutes at 85 ° 0 and then at a speed of 1150 rpm "with a start-up tension of 10 g and steady tension reduction to compensate for the increasing yarn speed wound a conical package. The tension is 680 to 90? g reduced to 8 g. A lubricant is applied during the winding process to make it easier to use.

A fully formed knitted fabric is produced by two individual textured yarns of the 21 gauge full fashion warp knitting machine are fed. The fully formed knitted fabric is processed into garments, which are then removed for removal be dampened by wrinkles. The garments are then kept in the autoclave at 1.9 kg / cm for 10 minutes.

The garments are then loosely washed in a paddle dyeing machine for 25 minutes at 80 ° C. The washed garments are dyed loose at 100 ⁰ C for 1.5 hours in one bath in the manner described in Example 1. They are rewashed for 20 minutes at 65.degree. C., excess moisture being removed by centrifugation. The items of clothing are treated in a tumbler, ^{dried at 101 °} C. and steamed to remove wrinkles.

Example 5

The yarn mentioned in Example 1 is textured using the folding wire method at a spindle speed of 135,000 rpm, whereby a twist of 2130 T / m is incorporated in the S direction. With this twist, the yarn becomes 0.6? Heated to a temperature of 185 ° 0 seconds. It is continued with a first feed with a 29 / o lag and taken up by the package with 64 m / minute or 8% lead.

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The textured yarn is then applied to that described in Example 1 Way before washed, dyed, wound on conical bobbins and processed into knitted goods

Example 4

An endless, multi-ply plied yarn that consists of 77 den-% 100 / LO? DZ / 26 gelulose triacetate and 23 denier% 30/1 / 2Z-10 nylon 6.6 consists, 36 threads with a total denier of and a twist of 79 T / m ia. Is approved by the gaIe 5 of the first temperature zone, i.e. the heater 6 and the false wire spindle 7 at one speed at a rate of 46.6 m / minute. The false wire spindle 7 rotates at 86..000 ITpM, which means that the yarn is between the spindle 7 and the godets 5 have a twist of 1838 T / m in S-direction. With this twist, the yarn becomes 1.35

Heated to a temperature of 185 ° 0 for 1.5 seconds.

The yarn is fed through the godets 8 at a speed of 45.6 m / minute, corresponding to 100% of the delivery speed the godets 5 continued. It takes from the godets 8 the path Δ over the pigtail guide 9 and the guide rods 10 and 11 for receiving coil 12 where it at a speed of 42.95 m / minute accordingly 92% of the speed at which it is passed through the godets 8 delivers is recorded. The textured yarn is prewashed, dyed, wound on conical bobbins and processed into knitted fabrics.

Example 5

An endless plied yarn consisting of 71 »5 denier% ^ / LTDZ / ^ O-cellulose triacetate and 28.5 denier% 30/1 / 2Z-10 nylon 6,6, contains 30 threads, a total denier of 105 and a twist of 79 ^T / m, is delivered with the godets in the first temperature zone j ie · to the heater 6 and to the false-twist spindle 7 and a speed of 53 m / minute. The false twist spindle is operated at 115,000 • 35 rpm, whereby the yarn between the spindle 7

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and the godets 5 have a twist of 2170 T / m in the S direction assumes · The yarn will go with this. Twist heated to a temperature of 185 ° C for 1.2 seconds

The yarn is passed on through the delivery godets 8 at a first speed of 55 μm / minute, corresponding to 100% of the delivery speed of the delivery godets 5. The yarn takes the path A from the godets 8 via the pigtail guide 9 Ona. the guide rods 10 and 11 to the take-up reel 12, where it is taken up at a speed of 48.4 m / minute corresponding to the delivery speed of the godets 8. This corresponds to a feed to the take-up coil 12 with an 8% lead.

The textured yarn is then applied to that described in Example 1 Prewashed, dyed, wound on conical bobbins and processed into knitted fabrics

Example 6

An endless multi-ply plied yarn that consists of 75 »2 den-% 55 / LTDZ / 15 gelulose triacetate and 26.8 denier% 20/1 / 2Z / 7 nylon 6.6 consists, contains 22 threads and a total tit he of 75 den and has a Z-twist of about 78 ff / m through the delivery godets 5 of the first temperature zone, i.e. the heater 6 and the false-twist spindle 7 at one speed fed at 55 m / minute · The false twist spindle 7 is operated at 115,000 rpm, whereby the yarn between the spindle 7 and the delivery godets 5 assumes an S twist of 2086 T / m · The yarn is twisted with this twist Heated to 1 £ 5 ° G for 1.16 seconds.

The yarn is from the false twist spindle 7 through the godets 8 at a speed of 55 m / minute corresponding to 100% of the delivery speed of the godets 5 continued. The yarn from the godets 8 takes the path A via the pigtail guide 9 and the guide rods 10 and 11 to the take-up spool 12, where it is at a speed of 49.4 m / l limit corresponding to 94% of the delivery speed.

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Speed of the godets 8 is taken up ^: This corresponds to a feed to the take-up reel 12 with 6% lead.

The textured yarn is based on that described in Example 1 Way prewashed, dyed, on cone-shaped bobbins wrapped and processed into knitted fabrics.

Example 7

The yarn mentioned in Example 1 is textured using the false twist method at a spindle speed of 44,000 rpm. Here, the yarn between the spindle 7 and the godets 5 assumes an S twist of 1840 T / m. The yarn is heated to a temperature of 185 ^° C. for 0.7 seconds with this twist.

The yarn is from the false twist spindle 7 through the delivery godets 8 continued at a speed of 102% of the delivery speed of the godets5. This matches with a feed into the delivery godets 8 with 2% Chocking.

The yarn decreases from the delivery ergaletten 8 and the path B is 1.40 seconds at 185 ⁰ C heat-set with dry heat. After this fixation, the yarn is continued through the godets 14 at a speed of 80% of the delivery speed of the godets 8. It is then taken up by the take-up reel 12 at a speed of 23.8 m / minute, which corresponds to 84.9% of the delivery speed of the godets 8 (4.9% multiple pitch). The yarn is then wound onto conical bobbins in the manner described in Example 1, processed into knitted goods and dyed.

Example 8

The yarn mentioned in Example 1 becomes the first temperature zone fed at a speed of 64 m / minute and at a spindle speed of 210,000 rpm at which it S-twist of 1970 T / m, textured by false twist. With this twist, the yarn is 0.58 seconds on a

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Temperature of 185 ⁰ G heated. With a first feed it is continued with a lag of 2? / O and taken up by the take-up reel at a speed of 106 m / minute or SP / o lead.

The textured yarn is then applied to that described in Example 1 Pre-washed, dyed, wound on cone-shaped bobbins and processed into knitted fabrics.

Example 9

The non-textured yarn described in Example 2 is passed through the godets 5 at a speed of 23.8 m / Minute in the first temperature zone, i.e. to the heater 6 and to the false-wire spindle 7. The false-wire spindle 7 is operated at 115 * 000 rpm, whereby the yarn between the spindle 7 and the godets 5 has an S twist of 1480 T / m accepts. The yarn is heated to a temperature of 180 C for 0.72 seconds with this twist.

The yarn coming from the false twist spindle 7 loses most of its twist and is passed through the godets 8 (first feed) at a speed of 24.7 in / Minute corresponding to 104% of the delivery speed of the godets 5 continued * This corresponds to a feed into the godets 8 with 4% lag.

The yarn from the delivery godets 8 takes the path A to the pigtail guide 9 and to the guide rods 10 and 11. It is taken up by the take-up bobbin 12 at a speed of 93% of the delivery speed of the godets 8. The yarn is kept ^{at 80 0} O with steam for 75 minutes. The steam is then evacuated and the yarn is ^{kept at 80 0} O for about 15 minutes with dry heat. After heating, the yarn is prewashed, dyed, wound on conical bobbins and processed into knitted goods in the manner described in Example 2.

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. Example 10

The yarn mentioned in Example 1 is wrongly twisted at a spindle speed of 280,000 rpm, at which it assumes an S-twist of 204-7 T / m, textured. The yarn is brought to a temperature of 0.7 seconds with this twist 185 ° 0 heated · It is delivered with a delay of 5% and taken up by the take-up spool at a speed of 137 m / minute corresponding to 8% lead. ·

The yarn is then made in the manner described in Example 1 pre-washed, dyed, wound on cone-shaped bobbins and processed into knitted fabrics.

Example 11

The yarn mentioned in Example 1 is based on that described there Way textured. The yarn is then autoclaved as follows:

1) 5 minutes pre-vacuum at a pressure of 660 mm Hg;

2) 10 minutes of steaming at 1.9 kg / cm ² and 132 ° G;

3) lowering the pressure to 0 to 0.21 kg / cm;

4 ·) 10 minutes steam treatment at 1.9 kg / cm ² and 132 ⁰ G;

5) decrease the pressure to 0 to 0.21 kg / cm;

6) Steam treatment for 10 minutes at 1.9 kg / cm ² and 132 ° C and

7) 5 minutes vacuum of 660 mm Hg.

The yarn is then wound on cone bobbins and processed into knitted goods in the manner described in Example 1. The goods are then prewashed at 70.degree. C. for 15 minutes. Using a suitable Djtspersionsfarbstoffs and a suitable acid dye, in this case, Disperse Black 9 and Acid Black 107, the product is colored for 1.5 hours at 120 ⁰ O. The goods are uni colored black and washed for 20 minutes at 70 ⁰ G.

009815/1779

Claims (6)

Claims Method for texturing plied yarn made from consists of a cellulose seater yarn and a nylon yarn, characterized in that ' a) the yarn from a supply spool at a first speed through a temperature zone into a swirl zone delivers, ' b) the yarn up to one expressed in turns / inch Spin up, the one out of the formula Twist = where K ranges from about 400 to 750 lies, the twist along the yarn in the temperature zone runs back, c) the twisted yarn is heated in the temperature zone for about 0.25 to 2 seconds to a temperature of about 160 to 210 ⁰ O, d) ^ arn rotates back substantially and at a rate of about 95 ^O i ^S 110% of the first velocity from the impact zone, and e) the twisted back yarn at a speed of winds up about 98 to 80% of the second speed. 2. The method according to claim 1, characterized in that a plied yarn made from cellulose triacetate yarn and nylon , 6.6 yarn is textured. 3 · Method according to claim 1, characterized in that the Yarn with a spindle rotating at about 30,000 to 350,000 rpm, is turned up. 4-. Process according to claim 3 »characterized in that one twists the yarn up to 1380 to 2360 turns / m, the twisted yarn for about 0.5 to 1.5 seconds at a temperature heated from about 175 to 190 ° 0, the yarn with a 0 0981 5/1779 1549538 • Two teaGeschwindigkeit of about 98 Ms 1O5 $> the first speed continued to run 'one and seiiiifiadigk the Garnmit a% ince of about 95 to $ 84 the second Oeschwin- ■■■■■ aptitude · ---./■ '- ■ .. -. "' -. ■■.. ■ ': ■"...--''- 5. The method according to claim 3, characterized in that a sam is processed that has an iDiter of around 50 at 300 den, an erall of about 0 "to 394 turns / m before texturing and has a total of $ 1 to 75 threads consists". 6. The method according to claim 3, da & uroh characterized in that the yarn at a speed of about 18.3 Ms 160 m / Minute, based on the delivery of the yarn, textured will· 7 · Procedure ne & h Assprusfe 3 * characterized by the further Measure that mas. Das & arn immediately before winding about 0.5 to 2.5 seconds of heat treatment subjected at a temperature of sirra 1? 0 to 195 ° C, 8, A method according to ikasprueh 3, gekeimzeichnet by the further step that the yarn winding stabbed about 50 to 100 minutes at fOemperatur bucket of about 75 to 9O ⁰ C holds " 9 »Procedure naeii claim 3» geksmiseielmet by the Measure that the textured yarn is to be used after opening Ik autoclave «» 10 «Ver« lar92i xtacii Ajaspraek 3 «gskaaaize you? Anyway the further measure that bks &. & *» Texturiert® 0asm sslt one of about 1000 to 2QG0 TFpM tasid occurred Spammng νοη about O to 15 S stimf ^ oniseh © Spulen wiekell? <> 11 * Vftrfaiix'er, next. Aneprueh 11 »gskefinssiohaet by the further lfea & i, ahsis that one dme ßsra under © im®: ir Spaaa \ mg of about 1 to 5 g zti fabrics 009815/1779 Blank page