DE1535466A1 - Textile fabric with stretch properties - Google Patents

Description

MUNICH ö 2 9. f-üV-

PAltrlTANWÄLTE MÜLLERSTR. 31

DR .-! NG. H. FINCKE 1535-66

DIPL. -IMG. H. 5OM ?. I 0 0 0 ^ 0 O

DlPL-ING C. oTAEGEÄ M 19 472

I.CZ. Case F, 16468

description for patent application

the company IMPERIAL CHEMICAL INDUSTRIES LIMITED, London, S.W.1., Great Britain

concerning

ΐext11κ «weave with stretch properties

Priority: November 30, 1962 - No. 45 345/62 - Great Britain

The invention relates to textile fabrics with Streokelgensohaften or elastic stretchability.

There are textile fabrics with Streokeigenachaften in the Sohuss- or chain direction known. They can be made na oh an sioh avowed methods by nan

(a) Oarne dea during weaving incorporated, have the Faiern or Paden with elastic properties, BB · fibers or threads made of rubber or stretchable elaitlsohen ajn thetieohen polyurethanes;

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(b) by incorporating a yarn made from crimped fibers. Examples of this are "Ban-Lon", a thread yarn _t crimped in the stuffer box, "Helnnca", a crimped thread, and "Crimplene", a stabilized, falsely twisted, crimped pade thread j

(c) by subjecting a textile fabric to a treatment, which causes Grafh ripple, whereupon this ripple is called chemically fixed.

It was stated that with certain types of thermoplastic fibers which can be mixed with natural or other synthetic fibers, chemical treatment is not required if instead a larger proportion of such suitable thermoplastic fibers is used Cewebe incorporated and this fabric is heated to fix the stretch properties.

According to the invention, a textile fabric is made available »- beaitst the track properties and that with a load of 2. kg on a 50.8 mm strip of textile fabric » in one direction, i.e. either in the weft or in the Chain direction can stretch by at least $ 10, due to a Garnkräuselunf, which by Krause, exchange between sswel Sets or systems of yarns and by a war-

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mebehendlung fixed wu3 * de. Pie yarns with the yarn crimp contain synthetic thermoplastic fibers with a transition temperature from vitreous to elastic in the moist state above 80 ° C.

The yarns of the first set with the yarn crimp are practically parallel, each cn the crimps in neighboring yarns are out of phase. The yarns of the first set * loop around the yarns of the second set according to the weaving pattern. The yarns of the second half lie in practically parallel straight lines all in one plane when the fabric lies on a flat, even surface.

The transition temperature of the synthetic thermoplastic fibers from the glassy to the elastic state was determined by the dynamic stretching method; PR Pinnook and IM Ward, Proc. Pi-cye. Soc, Vol. 81, Part 2, No. 520, 3pages 260 to λ 275 (1963).

Suitable 3ynthetiäche thermoplastic fibers are polyester fibers based on terephthalic acid, particularly polyethylene terephthalate, and other Paeern from fiber-forming polymers having a plastic memory and a conversion * · temperature in a moist state above 80 ⁰ C. The Ausdruok "fibers" noKiieflt also staple fiber! uud threads, unless otherwise ancle res. is specified.

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The invention also provides a process for disposal to textile fabrics to impart Streckeigenechaften containing synthetic thermoplastic fibers having a TJmwandlungstemperatur in the moist state above 80 ⁰ C, and virtually no long float (floate) which preferably has a simple weave and daa optionally can be colored. The method iat characterized in that the Textilg e one honeycomb in the direction einee set of parallel yarns suitably by at least 5 to 15 $ and EO cut as possible stretched without the yarns au break while allowing the yarns in the other direction relax appropriate at least 10 bit 30 ^ _{t in} order to cause yarn curling exchange between the yarns in both directions of the textile fabric, and qao nan heated the textile fabric for a sufficient time to a suitable temperature to heat set the yarns, which see a proportion of the suitable synthetic thermoplastics Fibers must contain at least in the direction in which no drying took place, whereupon the textile fabric is allowed to cool in this configuration before a significant proportion of the stretching forces are eliminated in order to maintain the crimping.

The term "scattering property" means that one can Textile fabric in at least one direction, i.e. in the coastal or SchuSri.chfcungf can stretch by at least 1C $, and that this Stretching be! a load that is below the elastic limit de * Must be curled up and no break in the pasern Hervox-rr-ufon may, to an extent of at least 83 ^ themselves

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can recover, that is, when the stretching force is released, the tissue will quickly take on its original shape and form. A suitable value for the minimum load is 2 kg for a 50 ₅ G mm strip of the textile fabric.

Most tissues can be stretched and stretched from recover from stretching »but the extent of the stretching is only about 1 to 5 "/" The textile fabrics produced according to the invention with the defined route characteristics, after the treatment, however not prior to treatment to a value of at least 10 #, preferably 15 to 30 #, can be stretched.

It was found that simple work processes in production increase the yarn crimp, which results in streokelgeno-adhesions. If chain tension is required, chain tension must be increased. This can be done by stretching the textile fabric in width so that the weft pucker is removed. This causes an increase in the warp pucker and the amount of oversupply due to the kinky interchangeability of the textile fabric; the length of the fabric shortens as the warp pucker develops.

The Wärroofxxierung can vörfolgen useful during dt * Stenterns (sttntering) and is to be well below eohärferen conditions as if being · Major subsequent manufacturing

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direction or washing treatments may occur. Temperatures from 130 to 220 ⁰ C, preferably between about 180 to 200 EEO ⁰ C at a Behandlungedauer of 30 to 60 are ale sufficient to look for the erfindungegemäfl used Paeern. Under wet conditions and in the steam Bind lower temperatures sufficient, and temperatures can "wipe the transition temperature and 30 ⁰ C are employed below the Sohmelzpunktee the Faaern.

Venn one Schußatreckung required iat _t nut dae fabric in the warp direction and stretched in the weft direction relax be left · AUOH counter has the new configuration fabric heat set.

It was found that the route characteristics are "loh change with the construction of the weave. For example is the effect of looker woven schirting is considerably greater than a tightly woven fabric for rainwear. If necessary, the chain and SohuSdlohten (factory setts) be modified so that the required finished construction is obtained.

For example, if a pretreated fabric has little or no crimp in the weft direction, it may not work can be stretched in the direction of the stroke and therefore Do not pucker the yarn in the warp direction, in the warp

Btrsokung and vice versa.

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Very strong fabrics, such as fabrics for rainwear, are difficult to warp and therefore difficult to convert into the fabric according to the invention with stretch properties.

The Qarra in the textile fabrics must be thermoplastic, that is, they must have taken place after the Kraueelauetaueoh must be heat-set, and this deformation of the crimped yarn must be elastic, so that when a load of 2 kg is applied to a 50.8 mm strip of fabric after removing the weight ·· the textile fabric is again contracts due to the recovery of the bending · of the heat-set yarns. The scatter properties of the tissue are based specifically on the bending of the heat-set yarn and less on the stretching of one thread, either through development of the crimp or actual elastic stretch, as is the case with known streok fabrics consist of stretchable fibers such as rubber barrels or crimped yarns.

It is sensiohtlioh that the pulp should be high

elastic recovery when bending, the yarns must be bendable without separating the individual fiber or pad parts. In other words, yarns with a substantially circular cross-section are obtained. The yarns can be warped or plied yarns, dooh ought to be the individual yarns have a circular cross-section.

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Therefore, spun staple yarns are preferred. If thread yarns are used, these should be manufactured in such a way that they retain their practically krelsföxmigen cross-section by twisting them 3.B ₀ or by adding a cover.

After the treatment according to the invention, an examination of the results heat-set thermoplastic yarns have a sinusoidal crimp in one plane with a high level of birefringence oriented drawn threads in the yarn and a tall crystal linittitsgrad, while the yarns in the transverse direction pr share oh straight, especially if they are also made of thermoplastic yarns.

Natural or non-thermoplastic fibers can also be used the transverse direction should be used if lower trajectory properties can be tolerated.

The condition for the heat setting of the yarn · in the fabric, if it is stretched in one direction depends on the polymer from which the thermoplastic yarns are made. 3) 1 Temperature conditions can be selected according to the resistance of the fibers, which are rermisoht with the contact which wioht for the Streok "igensohaft" n and da · G " des Textil ^ ewcbes are responsible to tin enough To enable penetration. It is a different type of drink

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Is it that the treatment temperature should be higher than they are in subsequent processing, in use and in

Wear can occur

As already mentioned, spun yarns are preferred over thread yarns in order to give the textile fabric a stretch to lend. For maximum stray properties, «in is possible large amount of ripple exchange is required, and this " takes place with yarns, which, as already stated, their circular crosswise without knitting under cross pressure against neighboring game maintained. When using thread yarns with a low Degree of twisting results in a flattening and thereby thread separation at the bends. The result is that it is solo During the subsequent stretching process, textile fabrics do not generate any high yarn puckering due to gauze dew, since the "threads" tend to open each other.

For practical reasons, the erforderliohen voltages can be sufficiently accurate beetimmt "by dl · elongation under stress measures ι the natürlioh lower its BtlMsn than those which the fabric duroh break eineein · * ■ yarns only Qv en vUrden. Elongations τοη 10 to 209t la tine * lichtung with a relaxation of the textile fabric · in the Qusrrlohtun «, in which the thermoplastic heat-fixable ta * · gate» lie, by about 15 to 40 * are door 41 · invented «» fm * ien Fabric suitable.

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Such textile fabrics should have strewn properties of at least 10 # after the treatment. They can stretch in the warp or weft direction when they are with a weight of 2 kg on a 50.8 mm strip of the textile fabric can be tested

To achieve the required stretching in a textile. weave according to the curling method according to the invention which has a strong sinusoidal yarn crimp that crosses the transversely Threads are lent, the simple web constructions become with approximately the same pad spacing both in the weft- «La as well preferred in chain direction

Fabric with a cover factor of 1? Bind outstandingly suitable, if they are woven from 67/33 terylene cotton fabrics.

The cover factor D denotes the Ansahl and the ^ Titer of the yarn in the weft and warp direction dta fabric.

(inoh \ jj _ * nd · or ploks per / j _t Vootton oount /

The sliding ability of the yarns in fabrics is important. The tension required to produce a load exchange is lower when the friction between the fibers and the yarn is low. Precautionary measures are Tertile lubricants, containing silicones, used

8AD

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The yarn crimp in the textile fabric increases with the warp and weft density of the fabric (fabric sett) and it has its own. highest value for a simple web construction, which is therefore preferred. For example, a poplin fabric made of terylene cotton is suitable for rainwear with a solid construction, since it only gives a 5 # stretch after the treatment. Stretching in one direction and heat setting while relaxed in the other direction across it are unsuitable.

When you? Kräu.3elaustauseh takes place, the eohwach wavy parallel yarns in one direction of the textile fabric practically drawn straight and at the same time the parallel yarns are drawn closer together in the other direction and the undulating path over and under the practically straight yarns in the other direction is very reinforced. Ea is understandable that the following requirements must be met in the manufacture of Textilßcw.ebes so that this KräuaelauBtauach is possible:

(a) The ab3ta: id between the yarns in both directions should be such that the yarns lie in a wavy path due to the interlacing at practically a right angle to one another;

(b) The distance between the yarns should be such * that the yarns are able to move in the transverse direction when the other tJatz of yarns under high tension au straight lines ^ e is oii'en /;

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(ο) The distance between the yarns should not be too great, but there should be a noticeable undulation to cause the yarn to move in the other direction, when straightening a set of yarns *

(d) To support the movement between the yarns, the surface of the yarns must be provided with a lubricant.

(e) During the heat setting in the tensioned state, the corrugated yarns should have a greater proportion of fibers or Contain pads which can be heat set in this position under conditions such that this heat set becomes practically irreversible during any subsequent processing or use.

Wat the point (s) concerned, so, it was found that synthetic parsers are not offer any particular advantage with a UmwandlungBtemperatur below 80 ⁰ C), when used in the erfindungegemäßen tissues because the imparted heat setting is not permanent and subsequent heat treatment at temperatures is canceled even under the heat fixation atemperatuxi in a moist state. Soiebsynthet: The polyamides and iotactic polypropylene are threads and fibers. On the other hand, polyester fibers based on terephthalic acid, in particular polyethylene fiber or copolyesteciQscxn, are suitable.

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- contain fit components, as well as polyacrylic / nitrile fibers and threads with at least 80 # polyacrylonitrile, since the stretch properties that are conferred in the method according to the invention are subsequently heat treated; at least at temperatures up to 80 ⁰ C / ie below ler conversion temperature are not noticeably impaired. There must be no significant warping / of the textile fabric * during any subsequent heat treatment at temperatures above the treatment aperatu *.

From the above :! is possible there. ' the denier of the yarn has an effect on the amount of stretch that can be obtained in a special textile fabric: i. In order for the treatment to be effective, the tissues according to the invention have a characteristic appearance when the fids in the tissue are observed, preferably under slight magnification. The yarns or threads in one direction are practically straight and show a crimp elongation or corrugation of less than # at a load of 0.5 g / den, while the games, which emphasize the stretching properties in textile fabrics, a crimp elongation of at least 15 pounds and up to show 5Ofi with the same load. The corrugations which are shown in the drawing are substantially less varied

Path and the angle of the straight lines swisohen the tips of the Corrugations or ripples are preferably less than a 90 ° angle.

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If the process according to the invention is carried out continuously and as a commercial measure on a "pin stenter", and if, for example, one wants to give the fabric stretch properties in the warp direction, the stenter is adjusted so that it results in a high 3-shot voltage and increases the overfeed until ripple is observed along the ridges of the appropriate fabric. The overfeed is then reduced until the little one just disappears. In a suitable fabric, crimp exchange takes place "if the shoe tension is sufficient, i.e. the weft yarns come to lie in a single plane in practically parallel straight lines" while before this weft tension the weft yarns lie in a wavy, practically straight path.

Instead, it is also possible to apply tension to the tissue impart by creating warp tension and weft relaxation. When a "pin stenter" or "clip stenter ** is used

the tissue should be stretched to the fullest extent required before it is clamped. If this is not done, the pins or clamps will prevent the chain from stretching. It is desirable to increase the grip of the feeder batteries.

Once the usual tension has been applied to induce the herbal exchange, the tissue in this state is heat set and cooled before it is allowed to relax.

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Instead of a stent, one can use cylinder fixation machines, in which the tissue is held on cylinders that rotate at progressively faster speeds, while ee is pressed against the cylinder, for example by pressure belts. Such machines are commercially available. My type is the Bates-li-cylinder machine. It requires some modifications ₉ ind-am to yield trees at the feed end provides · In this case, fixation takes place on the cylinders, the μ are heated to a suitable temperature to the fabric to a temperature up to about 200 ⁰ C, preferably 18O ⁰ C , see below, depending on a given speed and the heat transfer properties of the tissue.

When using Fasarn which have a conversion ateaperatur in the moist state above 60 ⁰ C, such as polyethylene terephthalet fibers, it was surprisingly found that fabrics which contain a predominant proportion of such fibers, for example at a first temperature up to about 30 ⁰ C below the melting point Fibers that can be heat set Thereafter, the treatment according to the invention closes with a lower / second temperature, i.e. below the conversion temperature and at least 60 ⁰ O below the melting point. On that

the tissues are cooled to room temperature and thereafter

possibly a third time to a temperature, which is below the wide temperature, but without application any tension in the stretching direction of the fabric,

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- 16 - which was treated according to the method according to the invention.

This is of considerable practical importance because such a textile fabric is heat-set and anti-wrinkling. can be stabilized at 180 ⁰ C, whereupon it after erflndung "- gemäQen method to be treated and a sweitee time from 30 sec ZeB. can be heated to 18O ⁰ C in order to give the textile fabric stretch properties. The ee is then cooled while maintaining the conversion temperature. If the fabric then iu clothes! is trousers to be processed, for example, one may for example attach during a einminlitigen treatment without the tissue to versiehen insgeeamt on a Hoffman press a crease at 135 ⁰ O. The result is a garment with a permanent palte and stray properties in one direction that is stabilized against shrinkage.

The invention therefore provides a method by means of which textile fabrics can be imparted in one direction of streoke properties, which textile fabric consists of polyester fibers in at least the direction in which one wants to develop streoke properties. The method is characterized in that the fabric is heat-set at a temperature of 30 ⁰ O above the 4 transformation temperature and at least 30 ⁰ O below the 8 ohmic temperature of the polyester, the fabric is stretched in one direction and it is allowed to relax in the other direction, whichever Direction contains a predominant proportion of polyester fibers or threads in order to evoke the exchange of kinks, so that the yarns in the stray direction in a practical one

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BATH

A single plane along practically straight parallel lines come to lie that the tissue is ^{heated in this state to a temperature above the transition temperature and 30 0} O below the melting temperature, the tissue is cooled in this state and ea, if necessary, a subsequent third heating to a temperature above the transformation temperature and possibly below the "wide temperature", but without exerting any general tension on the fabric, for example to iron or pleat it, but not to apply stretching in the direction in which the stretch properties were imparted to the fabric. . .

The required percentage of synthetic thermoplastic Passing depends on a number of non-"μ" factors, such as the structure of the tertiary fabric and the yarn and the intended use of the textile fabric. Is can a proportion of 35 * are used in mixtures with full, dooh also higher proportions, i.e. a predominant proportion, including 100% of the synthetic / asers, have given excellent results.

In the drawings, a preferred embodiment dsr Invention reproduced. Plgur 1 ssigtsematisoh lengths faithfully an untreated textile fabric in a greatly enlarged Scale,

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Figure 2 is schematic dine lüngentreue Anaioht of Tertilgewebea of Figure 1 as ea au33leht during or after the heat treatment.

Pigur 3 is an end view in cross section of the textile fabric of Figures 1 and 4 is an end view in cross section of the textile fabric according to FIG. 2.

Figure 5 is a schematic side view of a cylinder fixing machine on a greatly reduced scale.

In Fitfur 1 the yarns 1, 2 and 3 are interwoven with the O ame η 5, 6, 7 and 8. You can see that yarns 1, 2 and 3 are slightly offset due to the interaction with yarn 5 (in the warp), which can also be seen in FIG. 3, in which a further yarn 4 is shown. When you put a solo tissue on a stenter Overfeed in the chain direction and then in the weft direction stretches, the 3ohu8 yarns become practically straight lines stretched out, as can be seen in FIG. 2, while the yarns are offset in the warp direction by means of a frizzy rope. The curls have been removed from the weft yarns and in the chain direction of yarn 5, 6, 7, 8 and 9 raised, fig 4, which is a bit like the textile fabric figure 2 along the Oarn 5, is clearly the larger crimp, dia is given to yarn 5, and it further shows that the yarns 1, 2, 3 and 4 in the chain direction are now practical lying in a boar *

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In Figure 5, a suitable textile fabric is unwound from a Tuoh tree 10 and guided over an adjustable stretching device , the eus square trees 11, 12, 13, H and 15 be, the two trees 12 and 13 around the axis 16 with the help of a Handwheel 17 can be pivoted rotatably. From the tree 15 the textile fabric is picked up by the loading orphans 1Θ and 19, followed by a spreader roller 20 for spreading the textile fabric before it is picked up by the heated cylinders 21 and 'sZ, against which the textile fabric is driven under a higher pressure by the Transportwal zen 23 and 24 is pressed. Further rollers 25, 26, 27 and 28 are covered with two rows of aprons 29 and 30, which help to press the textile fabric against the cylinders 21 and 22. The delivery roller 31 guides the textile fabric into a cooling zone 33, in which it is expediently cooled to room temperature with an air jet before it is wound onto the fabric beam 34 with the winding roller *

The invention is further illustrated by the following examples.

Example 1 .

A curly simple terylene fabric made of 2/50 '(cotton count) yarn was pulled 10J in the weft direction and allowed to relax in the kcrit direction by 15 #. The textile fabric; \ IIRD 30 lake hot fixed at 20O ⁰ C.

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initially

Chain and protective sleeves each 2.54 om

58 χ 48

after treatment 52 χ 57

f> Qarnkrtuelung

in dtr chain; in SoImB

1996 in the chain; in SohuQ

The treatment resulted in more than 12% elongation in the warp, which was durable when washed and exhibited good brewing properties.

Example 2

Sin plain weave terylene aua 67/33 cotton from a 1/12 × (cotton count) yarn was 30 eee at 180 ⁰ O 20 £ strength Überspeißung and # 15 strength stretching gee-tentert in Schus. The treatment gave 15 # elongation in the chain with good recovery and tear durability.

initially

after treatment

Chain and SohuQ density each 2.54

56 χ 40 48 χ 50

i · Yarn nibbling

% in the chain17 * in the sole

16jl in the chain; 2> in Sohufl

btreokung a t> 0.8 mm Strip weighing 2 kg

Recovery before the 3rd stretch

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Example 3

A plain weave from 67/33 Terylen viscose from a 1/16 × (cotton count) yarn with a Bedeckungefaktor (cover factor) of 13 _t 2 was on a tenter for 30 seconds at 180 S ⁰ O treated. A stretch of 8ji was induced in the chain direction. The weft direction was allowed to contract by 28 ° C., WS3 can be seen from the table below , which also lists the properties of the fabric before and after the treatment .

Warp and weft density each 2.54 cm

i » Yarn puckering

i » Stretching with a load of 2 kg / 5018 ms strips

i » Recovery from the stretch

Elongation in the chain - θ £

Contraction in the weft direction »

before naoh

the treatment

56 x.50 8x7

72 x 46 1 χ 30

example 4th

A camouflage fabric made of 55/45 lerylene wool with a single weave with a weight of 11 ounces / 58 inches wide and χ 32 feet per 2.54 cm was modeled on a

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Batea cylinder fixing machine at 17O ⁰ C and a Yorso lifting speed of the textile fabric 3 of 2.8 m / min. A contact time of about 30 seconds was obtained. Before winding and releasing the tension, the tissue was cooled.

After this treatment, the fabric exhibited a 98 year recovery with a 17 # stretch in the weft direction and a warp and weft densities of 45 x 31 threads / 2.54 cm.

Example 5

A worsted twill fabric of 55/45 terylene wool weighing 12 ^1/2 ounces / 58 inches wide and 65 x 60 threads per 2.54 cm was treated according to Example 4. After the treatment, the fabric had an elongation of 145 * and 75 χ 56 threads per 2.54 cm. When repeatedly strewn and unloaded with a weight of 2 kg on a 50.8 mm strip of the fabric, a recovery of 9 GjS with 14 # stretching in the weft direction could be obtained.

Bas called terylene is a polyethylene terephthalate fiber with a transformation temperature in the feuohtem state from 109 ⁰ C.

Patent retirement

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Claims (13)

Godparents taiio prUchc 1. Textile fabric nit Strockeigenschaften that kg at a load of 2 at elnom LO _t 8 mm strip of Tertilgswebea in a Iliehtung, DH> JLN either the chain were -.- stretched or 3 in the weft direction by at least 10 $ can, due to a GarnkraiiB clung that imparted by Kräunalungsnustausch and zwif by heat treatment? ohen swoi records or Syateraen was fixed yarns _t wherein the yarns included with the Gamkrüuselung oynthetisohe therroplnotioche Paaorn with a conversion temperature in -'euchtsn state above 80 ⁰ C. " according to claim 1, in which the yarns • In the first set, which the yarn crimping HUfVeIBOn ₁ practically parallel union, but the crimps in Va: non phaoenvenchoben bind, the yarns of the right-hand rst Gatnea the yarns dco second set after the weave -'Under the loop and lay the yarns do3 in the second set in straight lines essentially in a plane 7, where the textile fabric rests on a flat, even surface. 3. Textile fabric according to Anopruoh 1 or 2, daduroh Marked that the synthetic thenaoplastiac> ion Paper also polyeoteric fibers based on Tere ~ BATH OC9850 / 035 3 phthalic acid, polyethylene terephthalate, copolyester fiber !! old up to 1 (0 of a second component, polyacrylonitrile fibers, fibers that contain at least 80 $ polyacrylonitrile, or a mixture thereof, exist, which fibers have a plaetisohee memory. 4 «textile fabric according to claim 1 to 3, characterized p. gokennsei chnet that it is due to the turning a which has three-dimensional properties of the heat-fixed yarns, without the individual fibers or thread components separate » 5 η textile fabric according to claim 1 to 3 4, characterized gelee η η ζ ei chnet that the yarns essentially have a croissant-shaped cross-section. 6. Textile fabric according to claim 1 to 5, characterized gekennz oi chnet that the yarns individually one ™ Sinusoidal ripple in a plane with high birefringence of oriented drawn fibers in the yarn and exhibit a high degree of crystallinity. 7. Textile fabric according to claim 1 to 6, daduroh It signifies that it is a simple weave construction with approximately the same thread length both in the warp direction and in the weft direction with cross-crossing F adf in owns r 009850/0353 8. Textile fabric according to claim 1 to 7 «characterized in that it contains yarns that after Removal from the tissue and during the test "a herbaceous Elongation elongation of at least 155 * and up to 50% with one Have a load of 0.5 g / den. 9. Process for the production of a textile fabric with stretch properties, the synthetic thermoplastic Pa- | contains fibers with a transformation temperature into the moist state above 80 ⁰ O, which has practically no long floats, preferably of a simple weave is and can optionally be colored, thereby marked that the textile fabric is stretched as much as possible in the direction of a set or system of parallel yarns without breaking the yarns, while the yarns are allowed to relax in the other direction of the textile fabric and this exchanges Krauselungseuetausch f between the yarns in the two directions of the textile fabric, and that the textile fabric is heated to a suitable temperature in sufficient time to reach the temperature To fix yarns in the warmth, which · yarn «has a share of suitable synthetic thermoplastic fibers must at least contain in the direction in which none Stretching takes place, whereupon aas textile fabric under the Transformation temperature of the Fasarn In this configuration from « cool loudly before nan a significant proportion of the Stretching force to oelzubt- keep. ^Α * 009850/0353 10. Method according to Anapruoh 9 »thereby It is rewarded that the textile fabric runs in the direction of a set or system of parallels Stretches yarns by at least 5 to 15 #. 11. The method according to claim 9 or 10, characterized gek e η η ζ calibrates that the yarns in the other direction of the textile fabrico by at least 10 to 30j ( can relax to bring about the yarn puckering exchange. 12. The method according to claim 9 to 11, characterized in that the heat setting is carried out at temperatures between 150 and 220 ⁰ C during the stentem. 13th Method according to claim 9 to 11, characterized marked denies that the heat setting is carried out on a cylinder fixing machine, the bit Spanning beams at the loading end is provided H. Process for the production of a textile fabric old stretch properties in one direction from polyester fibers at least in the direction in which one wants to cause the Streokeigeneohaften, thereby geke β η ζ e lean t, 'one ate the textile fabric at a temperature of 30 ⁰ O above the UBnnuidlun £ «te» perfect- 009850/0353 ° ° ^? ^ ''"' door and at least 3O ⁰ C below the melting temperature. dee polyester heat-fixed, stretched dae textile fabric in one direction and can ea relax in the other direction, which Riohtung contains a greater proportion of polyester fibers or filaments, to the Ki'äuselungaaustßUBch cause, so that the yarns in the direction of stretching wrπentliehen jm in a single level straight along substantially parallel lines come to lie in that now the like the textile fabric in dieaem state call a temperature above the Umwandlungateraperatur uid 30 ⁰ C uhterhaüb the Ocliaelztemperatur heated, cools the textile fabric in dieson state and optionally a third time to a temperature Heated above the conversion temperature and, if necessary, below the temperature used for the two-tone flashing, without, however, being heated - νηre in order to iron or plieslere C3 if necessary, but without stretching ea in the direction in which the straw inherent properties of the textile fabric became. PATRNTANWXlTE DR ING. H- FlNCKE. DIPl.-ΙΝΘ. H. Β «« &. SIMM * 6AD OBlGlNAL 009850/0353