DE1660582A1 - Synthetic fiber and its manufacture - Google Patents

Description

The invention relates to improved fibers © of the threads made of acrylonitrile polymers and products made from them.

Various egg fibers have a superior smoothness, which is largely based on the freedom from sharp bends or crimps. Such a fiber is difficult to process in ordinary text processing because it lacks the fiber-fiber bonding strength that is required in the early stages of batch processing, such as opening, carding and initial warping, are needed. For the same reason, such a fiber goes out goods made with it often to an exaggerated degree lost (excessive "spending"). In addition, the noblest fibers with the property of smooth handling, such as mohair and cashmere, natural surface modifiers which "soften" the fiber, from which a somewhat ruthless

• ■■■ " ¹ '" .. 109818/1191

A-579-K / A-666-R _

Excellent grip results. From this combination of straightness and surface modification si © li explains the essential advantage that certain natural fibers have over synthetic fibers on high-quality product markets of major economic importance in spite of the practical high parts that result from the low fiber-fiber binding power.

Acrylonitrile polymer fibers c. are more woolly than most other synthetic fibers. They offer many advantages over wool, such as the possibility of waxing without shrinking, their insect resistance and their easy dyeability in luminous. and real shades.

The acrylonitrile fibers previously used in classic, knitted sweaters However, have resulted in a garment that, due to the abrasive effect that occurs when asking, on the surface is defaced (forms pills). The pill are small fiber balls. or tufts that are fairly firm to the surface be held and in this way spoil the appearance of the garments. The acrylic polymer fibers are also lacking the smooth, gliding handle of various natural fibers.

Many attempts have been made to pilling synthetic fibers to overcome. DaB pilling can be done by turning up the yarn reduce, which in turn, the bulkiness and Deokkraft greatly reduced and the aesthetic properties of knitwear heavily modified. Trials with gliding and anti-gliding pre-

- 2 - 100818/1090

A-579-R / A-666-R λ

Parations have only produced a slight »improvement · Jegliohe Such an improvement is only temporary, as generally available preparations with such properties have already passed a few laundry or chemical cleaning treatments are removed.

According to the invention, these disadvantages of previously known fibers made of acrylonitrile polymers are mil; overcome a fiber made of Aerylnitrilpolymeren, which gives a straightness factor of 0.70 to 1.5 when boiled and has an initial shrinkage temperature of at least 145 ^a C and a maximum shrinkage force factor of not more than 0.9.

This fiber is obtainable if freshly spun aeryl nitrile polymer threads are washed and stretched to 120 to 450 $, preferably 120 to 300 $> their length in the spun state, and the stretched threads upon exposure; a BsXtekpaft of at least j | 5 mg / den at least 0.5 seconds. Plai.tifig±@2 suspends> © n acting conditions and in this catfish to 2 vorsjagsweiee to 4O ₉ 15 ^ 40 # is her! Anise in entangled 2ust £ .nd entspanat · The relaxed threads k then men when gewünsoht _s meshmmigeM g © teae ^ the Elder and rgeführt Uebi-in staple commodities.

e were.the threads mechanically ^ @ 1 © lass · temperature _ι: the

Value τοη 20 ° C uat © r .d © r. Ül e ^ gaiagsteiipa ^ mttei ⁵ , further order

1 11 I.

A-579-R / A-666-R.

(Freeze tempera door) the thread's light over-eared, crimped to 1.2 to 6 crimps / cm " ^:

Under the term of the fiber made of acrylonitrile polymer or aeryl resin fiber a fiber is to be understood that is at least 85 wt having polymerized acrylonitrile in the polymer.

The properties of the fiber according to the invention are on a Determines fiber material that is stretched, relaxed (as described above) and crimped to 1.2 to 6 crimps / om.

The straightness factor (straight newe factor) is determined as follows

1 «About ig of the ssu testing batch material with a Son length v®a about 7, i> cm is carded by hand.

2. One weighs out geaam O, § g F @ serma *; erial. 5 -.- Pour approximately 25% of water into a 400 ml beaker and let ate -eissgewogea® bevel sample be as open as possible on & j.e. ¥ ater © "fe © rflä © & © fs! 3. @ a _o IM iiosem point can, special ± n & © g @ aw © 2» t eiaes hy & f ⁵ «» paste® surface nodification aitt © i @ 9 eia Imgats ! 5 'R © some pf © m © Hetsmitt necessary s®in, -. inter alia, a volletlmiig © Beaetauiig cles ⁵ F ^ ofe ©

4 ·. 2Mb viewer glass ^? Iri s
sturdy in the © i® W

5 β ^ a © mtmlESt iss iQgitQ ^ gles am © ö © a ¥ eg @ @g amf 30®, ö

. ■ - ■ "-. ■■ 1680582

A-579-R / A-666-B

6. The Pi'obe is removed from the 3 @ © & ®rglaa with a glass rod, without any change, its (reatalt on © in a paper towel and left to dry.

7. One chooses arbitrarily from the dried fiber aeratorial (re-

gelless) 8 thread clumps and lay mim on a black velvet surface. © in Laden is taken from each bundle.

8. Pieces of masking tape are machined to such a size that that their weight is 2 fflg / ätin (calculated on the su testing thread). To every Sii & e of all eight chosen threads a piece of tape is attached.

9 · Bines of the pieces of tape with the ®its®nd © a thread attached to it is attached to one end of a slide »Ita leaves the thread hanging under the weight & ® & the second piece of tape, and then attaches it to the slide» on the Fade a piece of a flat "flexible Folit with rakes provided in the AbetämSem clay 2.54 cm and the FaSea under the microscope with the representations of partial circles with operation of 0.635t, 0.318, 0.159, O, O794t-0.0397» 0, 0198, 0.0099 Wd 0.0050 cm (marked with! © innumerable 8 Me 1) on a transparent, overlying a measuring stick compared «

10 »Each on a 2.54-cm-Längsgtüfik ά <^ τ fiber sample festausteilenden curvature with einsm represents St & äWgBn etc. ^ on the darüberllegenden H ^ estab geteaekt in accordance with and indicated by the reference £% hl.

11, One calculates the mean curvature j © i © ^ f®®es "<» Binsselprobe as the average value of the iron od @ r aQte © ^ © ®, Denneehleh, die

A-579-B / A-666-R £

determined according to the curvatures determined. It also shows the number of curvatures observed in each sample recorded. '

12. By notifying the middle in curvatures of the 8 threads will be the mean curvature (R) of the Gaa & atprobe is calculated.

13. By reporting the number of bends per 2.54 ca thread the mean frequency (f) of the curvatures of the total sample is calculated for the 8 threads.

14 · The greatness factor, SF, wi:? D according to the formula

the

calculated.

Zar determining the Schrumpfanfangstemper®tür, IS attached to won eir fiber bundles approximately 100 to diverge between the clamps of an Instron Prüfgeräteg nnä leaves the terminals, indicating to the unit sine tensile stress of about 0.3. 3 While the terminal ;, will be held in this position, it is approximately raises the temperature of surrounding the fiber bundle air old 10 ° O / LLLN, Man the voltage and the temperature ale function records the time and further din temperature (t) versus the voltage on . The temperature (T) at which additional stress occurs for the first time is recorded on the curve. The initial shrinkage temperature (IS) is then calculated as follows

".. - 6 -. 1-09818 / 1888

A-579-R / A-666-R h

IS ■ β T + 10 (3 JJL - ' ¹ )

the

It can also be observed that the stress that develops with the increase in temperature reaches a maximum, whereupon a further increase in temperature, probably due to Sr and intermolecular rearrangements, leads to a lower stress. The value of the tension helmet maximum is used to calculate the maximum shrinkage * force factor, MSI ?, according to the formula:

Maximum tension (oms.) BundlesTsr (denJ

! The Paser.i according to the Erfiadumg se igen © in the © remarkable. Resistance to: i the formation eim-sr crinklingM ^ ge ¥ © nn one lets the chucking under the action of imss ³ holding force toa at least 5 »typically 5 to 30 mg / é ai uid under conditions acting on the flux _B ^ i @ by means of fe © & @ i & t®m Walaem, hot air, steam or-umtgr Ifioxlamf ®t <Dli @ Bi © m © rganigehen Steaming j are XmtenBpan & ungsm ^ smincidrt © i © s> ^ © SQitigt and results in a straight shape _o self "at @ tn @ w MsohmilaGhen crimps retain the fibers ite © "B® £ 'i £ u. @? m, g _v i £ © s © E ^ äisQQlmmg fe @ i an inferring Hei3s-Hase-B @ MMlissag; gtsa. g ^ igist © ®. Seil @ ä @ r completely ^ fiedsE ¹ 'to give up * Bi @ © mtsgsnahmea W & mw® g®aä @ s of the invention g © l © toen · see also
from mater 5 $ ₀ .

A-579-R / A-666-R

Due to their unique property of assuming an essentially straight shape in a hot-hare treatment, the pasern gexnäee of the invention achieve an ideal suitability for the production of bulky yarns that have significantly improved pilling properties and a smooth, gliding handle (Smooth, Slick Feel), as is typical for various animal fibers. These yarns are obtained by mixing at least 25% by weight of 56 fibers according to the invention with other fibers of a higher body. According to the invention, the fibers preferably have a mechanical initial crimp. This is of value in textile processing, such as carding and spinning, but when the mixed yarn containing these fibers is subjected to Helss-Nase treatments, such as in dyeing, the fibers according to the invention orient themselves as frizz-free fibers predominantly to and near the surface of the yarn, which becomes fluffy with the retraction of the more shrinking pases *. Because the straight fibers orient themselves to the surface of the yarn ©, products manufactured from such yarns have substantially a gl®tten ₉ gl © © n it®nd handle, and since the fibers straight, B, @ tg @ s i © © lb © träehlleh less about tangles and the formation of pill "than is typical for curled fibers"

The second fiber in & bt blend can be any high strength fiber that is relatively capable of shrinkage. Examples of usable fibers fia <ä © m bsi d®m Aerjl- and Hodecrylharsfaaero j which close to the stretching ^- aur part © m spans the e ©

"- 8 -. 108818/1938

A-579-R / A-666-R _fl

j ■

That essentially all of her been handled while the shrinkage developed by the stretching treatment is retained. On the other hand, you can be completely relaxed Thread cable on the turbo stacker, the £ ®oifie-Gonverter or another device of this type eu a hoohechrurapfenden Process the sliver and mix it with the fiber according to the invention without prior relaxation. E.g. is particularly suitable

■■■ -. ■ "■ ■ ■ i

a fiber composed of a copolymer of acrylonitrile and sodium- ^ btyrenesulfonate in the ratio of 94; 6 to 99 ' V and also from the copolymers of acrylonitrile and a vinyl pyridine, the terpolymers of acrylonitrile _? Methyl aerylate and sodium styrene sulfonate; there. Modacrylharse, to substantially a © to as 15 # with a nonionic modifier _s wi © vinyl acetate, methyl acrylate, vinylidene chloride, styrene and other vinyl active mischpoiyinerieierbaren monomers or lonladh & n Modiflzierungsmitteln as latriumstyrolsulfonat or © inen vinylpyridine, may be modified and mehrkomponentidg © V @ rbmiiSfäden that w®väen so -ä manufactured and solch® 25uaasüs © ms © tsmiag have to the action of a kochenden- W @ ®ehfl®tt <@ sslbstferäueelfähig sina can -. will also verweaiat "" Pas w @ © © all requirement ordered sarin that dl® higher shrinkage ®M @ Wbq @ t in the form in d © r si® in the mixture v®rf, i <igt, @ ± n | p®% Qai © s Schxtoapfacity 2 ^ s> Urzeugung d @ 8 wüaseljten BsmsieMigissitggraiee has. Vorzpgswei ©uchte the height © rsohrmsff®ade W & mi? in the © imos »M © ag® of at least 10 § © w.fS before _e with 15 to 50 @ow _o ^ üqw Mtosotourapienden Pea © 3p © ÄS11 »man special? © gKt® S2t? g © teis © © o

'·. 9 ■. «1ΘΙΙ11 / 1 i®S

A-579-B / A-666-E

The horn-socking fiber has a shrinkage of at least 15 % -'Within the determination of the shrinkage, boiling in water for at least 15 minutes and then drying. In the case of two-component materials, the shrinkage means the effect of the distortion through contraction and the shortening, which biologically results in the formation of the spiral curl that is characteristic of single fibers.

As explained in the examples, the desired properties (^ ktllität) of the fibers, seeds and. Goods according to the invention can be further improved by using a suitable surface modification agent. The application of drying agents of this type, which can be relatively easily removed by washing or dry cleaning, is known. According to the invention, the modifying agent is preferably selected from among agents which the fiber during its textile processing and wäfereEi! This washing and chemical cleaning of the goods made from it maintains / through the combination of the exceptionally straight, surface-oriented fibers according to the invention and a partially ₍ washable surface-M @ Si> fizierungsiBittel® _B dag © ia®n smooth or gliding handle o is a® set ®t © 3fl £ @ Amraiheruag on ü% ® handle units of the

Hardly ft ^ <äi © & -j © qIss äqs ⁵ Mwf & MänuQ ®it Advantage Querschnitte® QinQQ ^ sm® ui © s

_ö ® _o

109818/1998

A-579-R / A-666-R

Cross-section and collar cross-section with fine notches, but it it has been shown that by applying a drelfltigellgen (trilobal) or cloverleaf-shaped cross-section a south-eastern one Improvement .ng of certain aesthetic properties is possible.

The term elasticity is used here in the sense of resilience.

Percentage and partial data are, unless otherwise stated » au .. 'related to weight.

Ex IELT

1. Ss we a mixed polymer with a content of 96 JS of acrylonitrile and manufactured at Natriumstyrolsulf © net 4 #> "A 27 $ strength by weight solution of the copolymer in dimethylformamide is dry-spun in Wesent cozy 'United States Patent 2,615,198, Me at allendan Threads are under vers-treeirang on the 2.5fac5ie lh: he spun length in'Was β er washed from 95 ° G and then through an overheated ?! Water vapor yöu 130 ° G containing chamber led, in the in. 3? 75 S © ko t® ± a tensile stress of 10 mg / den a desspammra £ (relaxation) of 33 % with the formation of vtη 12-denier threads *. IiB label i © r threads with an 'Oeeamtviter of 470 000 aw are then crimped in the edging chamber to 2 crimps / cm ^ and a Kraus.e3.in.dex voa 3 ₈ T and then with a-Gleltpräpmr & tlon d @ -s H®nfi @ ls treated and cut into stacks »darere. .Length syiach © .n 7o5 "a ^ d 12.5 cm vari-

1.09 8-18 / 1998

A-579-H / A-666-B

iert »the stacked goods dried at 130 ° C tmd on a comb ·» Gara-Kreaipel processed into a sliver of 9.θ g / m. the obtained fiber (A) has the following properties:

Straightness factor 0.82

Initial ear neck temperature 165 Maximum ear neck force factor O ₉ 3

In the same treatment levels as with Paaer A, but below Omission of the relaxation level becomes one. Obtain fiber with the following properties:

Straightness factor 0.58

Initial shrinkage temperature 140 Maximum shrinkage force factor 1.3

2. Similarly, another thread of a terpolymer of 89.6 1 »acrylonitrile, spun 5.7 i> Kethylacrylat and 4.7 £ 2-methyl-5-vinylpyridine. The washed threads are drawn to the fourfold of their expended length, with 3-denier threads being obtained? curls the load as a cable in the stuffer box, then dries it in a tunnel oven at 150 ° C, then processes the dried quay on the turbo forklift below? Hot stretching to 1.78 times at 138 ° C., cools, the thread material undergoes stretch breaking and mechanical crimping to form a sliver of 8.3 g / m (fiber B).

* ¹² '109818/1998

A-579-3 / A-066-R - -

33 Afetoca soot hull of fiber A is $ 1, the very hull of

Fiber B 40 fS,

10 slivers of fiber A are combined with 5 slivers of fiber B and the combined slivers are reduced to a maximum staple length of 15 cm or less on a hood doubler. The animal and the resulting slivers are combined and processed into a sliver on a pin brafter, and four of the slivers obtained in this way are passed through a different pisces draft and senile to a 2/9 (worsted count) am with 2 S-Drelun = * gen / cm., ler individual yarns and 1 S -turn / cm @ s © esamtgarns spun, strands of this yarn are dyed at cooking temperature, with m-ra siar coloring of both-.F-asera both acid dye and basic dye used, laughing in the sroclmen, this saree is processed on © inar 3 i / 2-§ttt- ¥ irte! aschin @ & ®v Bauart Stoll au einis Itorlfanggewirk (Half ^ Car-Jigan.).

By dyeing at Koohtemperatu ^ koBMt the J? ^a aser B gum shrinking and "-trigrates mm Sera-des- 6arms-, while" the. laser A on the 3barflä <3li @ gab likewiseSat- wi? d _e Bi © finished goods are elastic "and baixsohig (loftf) miä dead - & tnmt smooth _9th sliding handle») he o'erfläehei & fesern stoi at was very " gerimges Iran

naoh AS'iM-'Prßfnoffla B-1375 C "AB Kl-Sisandaris ³⁸ _p E3pg ^ siamg 1959? S @ il 10, S« 173) results- © im © Iswrliisg? si 3 «5 = (at & ± <® b®t ' Prüwl. -d the Sahl i®r Sills - Js ^ mairatmil C6 ₉ 45 cm) fe @ ©' feisiait

■■ -. ■■ - uv loti '

BATH ORIGINAL

A-579-R / A-666-R

A-

and the Wara is rated on a scale from 1 to 5 , on which 5 "no pilling ^{! I} and t means" heavy pilling "; a product with a rating equal to 5 or" better is considered unsatisfactory ·)

4. A surface-modifying agent is applied to the cable of the present example as follows s -Mm-belt 10 parts 100 $> commercial epoxy to 257 volumes of water fine and stir until the dissolution is complete except for a slight cloudiness, then 133 ropes of one 5Q-igem silicone fluid in an aqueous dispersion) should be stirred in. This © Eanilgioti. is applied to the crimped iTOOOO-den ^ spring cable A »whereby the amount of emulsion applied corresponds to approximately 1 part ^ enlsion / 10 parts cable (calculated in such a way that 1 $> silicone and 0.25> * Bpoxyd remain on the fiber). Bas risBse Kabe is then 5 gesciiBitten on stack of 7 to 12.5 * om and 15 min. Heating to 130 ° G dried (fiber A

Goods made from the surface modified fibers from Blmü Maren

the precious animal fibers in the .Griffig @ nseteft @ n closer .approached «tucks desired, gstfeetise & ea

t®B prove themselves with multiple® Gheiaiscte®iuiis © ® imA} »sm» od © r

Wash as permanent.

1 09818/189:

A-579-B / A-666-R

ils

Example 2

1. It is prepared a mixed polymer containing 96 # acrylonitrile and 4 f> Hatriumetyroleulfonat. A 27 solution of the copolymer in dimethylformamide is spun as in Example 1. Washing the filaments obtained under the stretching to 1.8 times the as-spun length in water of 95 ° C ₉ it passes through a superheated steam of 130 ° C containing chamber in which a tension of 10 mg at / in the 1.04 sec. relaxation of 28 i 'with the formation of 3,5-enters the yarns which Pas he curls in the form eines'Kabels with a total titre of 470 000 as the _f in example 1, part 1, in the stuffer box 3 * 4 crimps / cm and a Krätiselindex of 4.8 and subjects them to the surface modification according to part 4 of example 1.

The cable is cut on stapal «their length of 7.5 varies to 12.5 om, and the stacked goods are dried and placed on a Kammgariakrempel processed into a sliver of 9.8 g / m (Paser C-M).

A similar fiber is produced with the modification that the £ ntspsnnung in taut condition is removed, and dried at 130 ° C;.., Wherein a-Ee st pf string of less than 4 4> is obtained. Thread properties:

¹⁵ - 109818/1998

A-579-H / A-666-R

Fiber C-M Not relaxed

———— ™ —- fiber,

Straightness factor 0.99 0.60

Initially? Iä6 £ c-iiri vaccination temperature 145 125

Maximum hull strength

factor 0.8 1 »5

2. In a similar way, pads are made from a mixed polymer 96 56 acrylonitrile and 4 # ΝβΐΓΐιΐιη8 · δ # τοΐ3μ1Γοηβΐ spun. Man washes the threads and stretches on the 2,3faehe of the spun Length, whereby 6-denier threads arise, curls the threads as cables in the storage room, subjects them to the surface modification according to example 1, feil 4 * cuts to 7.5 to 12.5 em stacks, dries in a fan oven for 15 minutes at 70 to 75 ° C uncl -processed the dried staple material on a worsted card to a sliver of 8.3 g / m (fiber D-M).

The fiber CK results in an Abioeh visual hull of 1 # «We fiber D = M hs ύ a visual hull in front of * 27 ^ and a serousness factor of 0.58,

3- Vian unites ten slivers of fiber GM with 5 slivers of fiber EM, guides the unified bearers through a pin-drafter, cleans four of the slivers obtained and transfers them to a pin to form a sliver, leads four of the slivers that are thereby eriialten D ir another pin-drawer

" ¹⁶ " 109818/1998

and finally spun on an Öara old with a cotton count of 12 and 3 2 "twist # n / eia. The yarn is processed on an Ig-Cut jacquara knitting machine in a loose weave (4 rows of stitches / em). The goods are dyed at the boiling point, using basic dyes for the dyeing of both pairs.

By dyeing at Kodhtoaperatur the 'faeer DM tufts and gum yarn core-g migrates while ä% ® fiber SM bulges on the surface. The finished goods are © lastisefe and bulky with a smooth @ n ₈ glsitemdam G? Iff- · The surface fibers have only one * eeh? g © i? iHg® crimp on »The test for pilling authenticity (ASfl-t ^ Üfnorm D-1375) © r gives a rating of 3» 0 *

Another in the same way ₉

dar Paser, di® ä © r Enisfüiaauamg im ge®teüfft © a .toatasi has not been subjected to _s SBSt ^ lall goods produced by Easer GH are w @ nlg @ T @ l @ & tlaeh lamS teuseMg ^ Mt ®ia @ m weaaiger smooth »gliding feÄi © a S ^ iff mmi kema h®i ü @% - examination euf filling authenticity only

5. i SLJB '± © 1

in the case of ©! 2 ₉ . foil 1

• ι © i © 1

BAD ORiG | _NAL

1880582

4-579-RA-666-H

6 den »the KrauselfreQ.uens 2,3 / os and the Kräuaellndax 4,5. Bit Entepanmmgefeaälngungen cones 1.8 sec. On action.

This product (fiber B) ttnd a similar one, without sntspaanimg manufactured fiber baben concluding properties:

Seradness factor

Starting temperature

Maximum cim suction force factor

fiber S Slightly relaxed __ fiber

0.93 0.55

150 123

0.6 2.4

2; According to Baiepiel 2, part 2 (fiber B-H).

3 · As in Be Game 2, Part 3. Slivers are combined and a 2/9 (worsted count) (far with 2 Z- χ 1 S-Breausig / c spönnen «Bae yarn is processed on a 3 1/2 cut WUpkfflaeohin.e construction type Stell to a loose Berlfang knitted fabric. The War® wlri fe®i E & oliteBperatur u ^ ter
dye-stuffed etuolc-dyed. Bureb die FfirtoebfthsEdlltssg UIb _ ? © e © r BH imS wandert mm Qh@rfl3.Qh® hmusQht. Si®

BAD ORiaiNAL

'108818/139

Μ © HsFStQllvmg ircm Aerylla & rsfeserii ,. oils% -oa Batur'aus just si® € _P i. Ii. feed Bfl> i-MSl © a Befeuefetemgs «=» unüüürockeiisy cycles. no SkMsqI tsai. SLm & s esitw ± @ l: © lm _f requires - © te © leiataittg ä © r Easer- ■ -Befeai? .9j.iaigsseit issä "Slästifici @ 3? Ungg1> aäiitgttiigöii in öer

astrnfi? * Di © B®äiiipiEg © m _e ii @ imm sur Br ^ eugsing by cTs-iBa * sue gei'aÄe-. Fe sera! • "aitigtg wlvä bxlgL · Tsa exerts cooperation ■ Β% ΊΏΦΜξζ_ § & s Isr^3.pcljme3?®ub©@£ssfIisset _s au © i@rn.ii6 Mien gespon-

le im " mm £ ®2 &'- m & ®n ¥ © rsisslies ITgJU SaImIX = SI) .salted fa-

• f-sä. geaa ^ atsm polymers fe @ s? gg © t © llt. gate

ii «s? never

im * @ t ₂ .. isss fii® fiber mut ~ ä

im ä @ r Stsiaofeife ^ aei * weak

109818/1998

A-579-H / A-666-R

■ 3,

S * 4

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CVl C4 C ^ CVI CSJ r - r-

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Example 5

How to slit the first te? Pdl $ ffier-es im. Example 4 illustrates speak einig® Aerjrl & M SRSF © u isit slightest § © HSLT mm ₉ - g * © isden® ':? _E hydrophilic Mom © s © ^ ®m on dia © tig there @ w siit®n _s fe @ GR® ®st® & W & sserdanpf-BatspaianmgsfeeliamdliiEg © »ale & fr.an · Ils aB # © r®« - ¥ # r £ ateen sur But »spenmmg Sieeesr -AeiylM ^^ flid® Ismf siela il® -l% weBSnng S®r Baispf® one © eaiseli © ® vos Waisaf ismi © in © ® SSeniiggMittelg for nasty polymers

Bie FäSes flbp Al · Prflttsüjg © »| fmä @ 2i @ II) w © fien tsmd each to äa @ i ₈ ff £

by AnMag © m T @ ia @ © ^? i @ & t®a g © ggammt ms! daom 5 S © k ·. the

8 ©

fern g © femoiiet

ta soig © ®0 g> © £ © ht © im ©

Straightness factor

Ö15- »

epaime ag / de »

© toe I

g g taut stand

0.56

0.49

after 5 seconds exposure to steam » over boiling Pioet & ylform-50/50

0.65 0.85 0.79 0.76

0.61 0.76 0.82

Dlaethylform-80/20

0.56

0.88 0.79

• 0.62 *

0.82 0.77 **

VO

as cn

A ~ 579-B / A- € 66 ~ B BC ₁ I s P ₁ i * "1 6

For an explanation of the influence of the hoelscIiruffipfeB & en fiber on the aesthetic grip properties of goods, the fiber Ö-M of Example 2 is used _for 1, comparison-In sw »! ttLsolningen «Inge-»! am aiscM »this IPaser aft of a fiber" with a © ® Sinssel-

foa S ä © s ₃ di © la fitoigen Äer Faa @ r ait sitiea fadentiter iron 3 den vim ® © i © pl © l 1 _S ϊβΐΐ 2, satsprlelity tmdstelXt en © diesel ^ aserasisotaag as in. Bsispi®! - 2 _S f @ iX 3 »© War © Sse ^ _o Ms ¥ ®r" e feat 2ii-Amf "®a ^ a. ErwösiBcht®m lf der but aa © Sa kerzss'l ^ lfem * frag © ® (29 «Stfi ·) vied @ rv

is * 11 © feasi © g € iii @ i, 1l d © r ti @ © M® © lirurapf © ai © a f & ser of example 2 vl ^ ä äatoa © rlämt ^ ffej iäsaii © ¥ @ re that B a% ts? aktii? © ii äBtteti © eMem Mgease ^ iftoia tu

■ by Me su J

td.

Bsi ä-an ec & wa $ hg @ drekt @ n, teiaseMgen @ss? Nea ₉ With && nm the goods from example -2 and the above-goods &# rg @ are presented «'works itself during 4 © b asking! ^! ! äer Eei3 © ä i © r GeselsrusBpften Kör ^ if & ae3 * r, ssur Ifarenoberfläehe before. Bies © S-Ernstaseienden halsen eia? ^{? t} Vö diinnm ^ ^ g ⁵¹ aer geraSen - Oberfläeihenfaseni aur follow _β Venn the Kernfg ^ ara itself irerliältaismäBsig gsrsäe Sibi _s inaüescndere auofe oberfläenen-modif iz-ated warden eimäl _s äisdert si © a '* of goods gi * l £ f \ Fenig, w-sna dagegen.di © JCumfaseHi looks straight © are, mr Oberfläclte occurs at their Sisteprarfeeitem% a rasehe Yeränöerung äm & l®r @ isgriffs. "

- 23 *

109818/1998

Α-579-ΒΛ-666-! Vf

Measurements of the faeer seradness result in the pair which corresponds to B of example 1, but has a titer τοη 6 den, 0 # 43 and in the case of the fiber which corresponds to BM from example Z sit the stipulation of a titer τοη β am , 0.58 *

B & i a P ₁ i , el , 7 - -

1. One spins a terpolymer made from 89 $ 6 # acrylonitrile 5.7 methyl acrylate nn & 4.7 S ^ 2-MeShyl-5-vinylpyridine threads, washed the thread material and stretched it to 1 × 6 times the ereponing length it enters through (iin superheated steam of 130 ° C Bfemiaer containing, in the 5 * 75 sec. at a tension of 15 mg / ö @ B a J3ntspannung of 18 ^ with the formation of 12-den-Fädeis crepes the 470000- the ^l-t adenkabel then Stanehkammer in the cuts and then ai? f stack äeren length of? _S varies 5 to 12.5 cm, and dried at 130 ° ö «3> ie Fasor thus obtained (?) het of a Geradheitsfaktor 0.92 _f an initial shrinkage temperature of 170 and a maximum crimp shock factor of 0.5.

In further experiments, further fiber gobs are produced under different time, tempering and tensile stress conditions, the conditions and the resulting straightness factors being summarized in the table below.

24 -

109818/1998

ti

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force factor

, 59

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1680582

A-579-R / A-666-R

3. Slivers from lasers F and G turn separately in each Stuf @ ® on the pin brafter warped «with men adjusting the sliver weights at the last barcfegeag so that the sliver made from fiber F has a weight of 83 g / aes Around that of fiber S a weight of 0.35 g / st Mat «Biea® fe @ ii © ti slivers are combined while being fed to the tensioning machine and form a yarn with 2 Z twists / em and a lassngarnniimser (Worsted Ccmnt) of 9

" is working. Two mddfae yarns with S-1 Dreiiung / m plied Sas erMltene _f faxed yarn vrird at Kochtemperatnr in "strand dyed with $ sau both acid dye and basic dye used" to both fibers to color · Make the Trooß »» n®n the yarn on a 5 1 / ^ -.. cut-knitting machine of the type barn in elaei * loose effect bonding processes as a result <AE® ^ StysmgfärMsg at high temperature shrinking fiber G and migrates-ZUS (3anil £ € I3M ₉ during Faster F bamseht and on the surface Söhling @ s forms. The finished goods are "bauschi elastic wmn. Is a £ 0 att-Gr! ®it-handle ·

fspinnen load from eiaeiä Misefepol ^ aig ^ om ¥ «sb fs lmtriiSB9tjroIsa! i @ aet _s v © sp®is.i (gt iie

¥ 0® about 10 00 © den mmö fufert iss Wmt ^ i £ wr-®k mfm® "RqT & q di © ffessei * if @ m §5 to gS® S © sttele © s« Wll ^ ais ^ ä @ g Biar ^ f s- ^: "iureSä iie system aiieböR fai & s wisS iss Ifes, ^ © !, am & @ ln®a .L

18/19 St BAD ORlGtNAL.

! »And during the office run through the

fee idem last f & nks and a® excluded water vapor chamber of 1CS Ms 1ß5 ^e G eissh by various amounts between about 3 xmä 22'fa of his ⁵ magic in the stray sun & *. Pie % -®gB $ BLmnvmg of the saber is "with these conditions in lereiek tob 10 Ms 15'mg / den (Brf ahnmgewert). it curls in the cable bucket Et © @ s isciikaiiM ° 9 cuts on stack, the length of 7T5 Ms 12 ₅ 5 esa -variiert _s Umä treekmet at 130 ° C .'- Pie accrues' »« ümi St © iS®lfasersi _s . Which a ts-eraötisiitgfekior swisehen 0 _? 82 and 1.05 & vif% v® ^m l & ® & » will in a ratio of 70 ι 30 ait of the fiber B from Bsisplal ΐ sinks and as in rope 3 tone example .1- au knitted.

. The effect Äafeeis Erwtesöht © Bausehigkeits- »" BIa--

our aesthetic

aias ei®®® $ lieüi & ji © lps @ r @ m of 96- ^ Acrylonitrile IT,! © 4 $ Est ^ tnastfrolgmlfomats !. - «extends the threads seen suf iss * _s 5 ^ © ofc- =? iärer he © pc "n1a @ Issen" MNGE and divided-wet, FaS ^ -sgmt in dr @ i ropes. The eim® item is at a ten 10 2ig / d © tt iuröh © ine Kassaier gefUhr *. " the over = sff το? ι 13ö ^e G contains »vmbei a lat tension void 2" ⁱ p © i '.- ^ s'itt »Iier sw @ it @" Pcsten viird Sursh - a' ¥ orri <shtung GefISsriSp läii siali from © iis @ Ei Ssti Sosier ^ EuftQüirw ^ lssmi six ge »söhwitsSigksiter-igelliaren, b @ feeis" t © n Welsen lamd iron Packing-Aufwiekle? zuaaisssBsetst, violbei nan nmch adjustment of the rollers

1 09818/1998 BAD OFt

A-579 ° R / A-666-R ti

temperature to 175 ° G adjusts the speeds so that a relaxation of the tightened "thread material of $ 26>occurs". The third item is not subjected to any relaxation in the tightened state. All fiber gobs are gently crimped in a stuffer box, in stacks of about 10 cm. cut to length and dried at 130 ° G «

Di® staple fibers have the following straightness factors

Factog

. Ota, ® relaxation - 0.62. . ...

Relaxation 0.94

Relaxation on heated

Walgen, '".-. 0.79

As in rope 3 of example 1, these fibers are mixed with the high-shrinking fiber τοη Example 1 § @ work h © rg © ~ represents. The goods that are marked with ä @ n in steam or "on the heat * tem rollers relaxed fibers are obtained are smoother-and more slippery and have better bulkiness and elasticity than those with fibers that are not relaxed when they are stretched manufactured goods.

B ^ e i s pi e 1 10 -

1. Nanh fter procedure of US Patent 3,038,236 a composite yarn using (I) 100 polyacrylonitrile,

^ 28 »■. / 1.0881 8/1 998

A-579-H / ^A " ⁶⁶⁶ " ^B

(II) a copolymer spun from 96% acrylonitrile and 4 $ ifodium styrenesulfonate

Spin the two polymer sauces together side by side in approximately equal proportions by weight to composite thread, washes the threads while bracing them to 4 times their spun length in hot water and dries. The dried cable (single thread denier 6 denier, total titer 470,000 denier) is used on the turbo stacker to 2.12 pounds near its previous length in the stretched position Warm stretched condition. When a sample of this fiber (H) is boiled off, a shrinkage of 20 # is obtained.

2 «According to ifeiapiel 2, part 1.

3. Combine Bin sliver of fiber H and a sliver of the laser-0 ~ M, and supplies the material to the mixture and to break a "i3tapi? Llänge of below 15 cm by Hood ° Doubler.

The resulting fiber sliver, etc. && 60 parts fiber CM and 40 lugs fiber H is formed, is combined with four other corresponding fiber ribbons and passed through a pin drafter '' banks "" / ©, purified. Then again four slivers and executes them duroli den Pin-Drafter and vssrapinnt schlieaslieli au 30-taxftarnen (Ootton ßount 20j with 4.4 % turns / cm, folds two such * same and turns with 1, S S-turns / m and acts on a 2.1- ^ g - Ccttonmaschine a were »The finished product

BATH

29 ■ »" 1098 18/1 99 8

1 & S0582

A-579-R / A-666-R

has a plate weight of 234 g / »and has 25 masonry rows χ 17 sticks up.

According to ASTM test standard D-1375, the pilling resistance of this product is 4.6. The goods have a pleasing »smooth, gliding handle.
»

Example If *

Following the procedure of Example 10, a composite thread is spun using (Z) 100 pounds of polyacrylonitrile nn (II) a copolymer of 94.45 $ acrylonitrile and 5.55 $ sodium ethyrenesulfonate.

Mim weaves the two Polymermfiesen together side by side in a ratio of about 3 parts I to 1 part II au composite threads which W is in hot water "wash to the 2 _P 1 times erspounenen projecting stretches of them, on stack of 7.5 to"! 2 , 5 cm cuts and

dries at 140 ° 0. Further slopes of the spun threads will be Washed in hot water for as much as 2% of their spared stretched in length, cut into stacks of 7.5 to 12.5 cm and dried. In all cases the faduatiter is 3 den.

Some of the threads are drawn through a chamber after they have been drawn out, which contains superheated steam of 130 ° C, wherein a controlled relaxation of 25 ^ is allowed to occur.

- 30 - 109818/1998

16S0582

A-579-R / A-666-R Al

These variations in stretching and in steam relaxation in the tightened state lead sv. Composite threads which, after boiling, give different crimp frequency and crimp index values

The curling frequency means the number of curls per centimeter (k / cm). The curl index (KI) let is defined as follows:

Fiber length in Aue _ fiber length in the de-curl index = ^GEB trekked state ° * stressed state _χ | q ₀

Fiber length in the extended state

Mixtures of these composite fibers with the fiber CH from Example 2 with a composite fiber content of 30 pounds are produced and these are processed as in Example 2 to give yarns with 2.8 Z twists / cm and a cotton number (Cotton Count) of 10 ₉ die are again processed on a 12-cut Wildman knitting machine at 6 courses / cm. The goods obtained are piece-dyed at boiling temperature using basic dyes. As a result of the dyeing hair treatment, the composite fibers develop a crimp, the effect of which is similar to that of the shrinkage in the mixed yarns.

The finished knitted fabrics are compared by a test committee and evaluated for softness and blasticity (results see Tatöl? .e IV). All goods have a surface area of 217 to

g / m ²

- 31 ^ 1 0 981 8/1

Table IV

Fibers in the mixture

Composite fiber variable tip-in stretch · water-visual wind behavior nis voltage mpm in ge

taut condition

70/30 · F & aer D-M Example II / composite fiber

70/30 fiber C-M example II / Verbun * f; aeer

K / 32Ki

^s 70/30 fiber CM example !! / composite fiber

! / Composite fiber

'/ <am ** 6 , Q, KI-19 41!

Mix of

C ₀ * } reference values ϊ softness of co wool * s 0, ron cashmere = reference value elasticity of

Wool a 5, cashmere * 2, cotton «

no

MiBc hwar e evaluations VJ WeToH-! Eiaeti- vo unity ») ity *«) ta

2.1 25? I at 130 ⁰ C 5

no

A-579-R / A-666-R Example 12

Triggered by “vimg © a of Acrylonitril-Miaalapol; / m @ r®B in M® © thy! For & amld, Faeera will be able to enjoy” their cross-directional tread, roughly equivalent to a flattened sole, which corresponds to a ratio of Brett® to a thickness of around 3 3 t ^: . . ! These fibers show a lb © v © rsiagte bending plane and therefore do not show the stiffness and elasticity of fibers symBetrivehervr Queiceohnlttsformneii '·

Stiffness and elasticity

altttf mmi ii © ani ± @@ <a @ around

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109818/1998

A-579-R / A-666-E

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- 34 -

1098 18/1998

Me erspoKneneia Fadenmaterialieix with a percentage of tri-Eäd @ n of the melir as 90 96. are stretching to the their eyes in the spun state in water at 95 ° C

I carried out a Kamaier containing superheated steam at 130 ° G, with a relaxation of 32 $ in 3.15 seconds at a tensile stress of 10 mg / pn, with the formation of 12 "= den-threads" ai.Tfitrittj In general, the shape of a cable in the stuffer box is cut to about 2 and 4 kinks / em kräueel-t “on-IQ-cm-stack and at

130 ° C dried.

Terarfeeiten-a mieehung with ^ as © r B to Sam and

en e5, n €>? » What · © as in Example 1 obtained goods are ela-

© ti eslier than the Viar @ n of example 1 .. ... "

1098 18/1998

Claims (6)

Claims 1. Acrylic resin fiber characterized by a straightness B factor in the boiled state from 0.70 to 1.5, an initial shrinkage a temperature of at least 145 ° C and a ■ maximum shrinkage force factor of not more than 0.9. 2. A method for producing the fiber according to claim 1, characterized in that characterized in that freshly spun acrylic resin threads are washed and spun to 120 to 450 j £ of their length in the spun State, drawn, the drawn threads by action plasticizing conditions of at least 0.5 seconds duration with a holding force of at least 5 mg / den relaxed by 2 to 40 36 of their length in the pre-stretched state, if desired, mechanically crimps the relaxed threads and converts them into staple fibers 3. The method according to claim 2, characterized in that one mechanically crimps the threads to 1.2 to 6 crimps / cm. 4 «Use of the fiber according to claim 1 for the production of a yarn, characterized in that at least 25 wt. the fiber of claim 1 having a higher shrinkage fiber mixes. - 36 - -.:■·, 10Θ818 / 1998 5. Use according to claim 4 »characterized in that the Paser higher shrinkage a multi-component composite fiber is i 6. Use according to claim 5, characterized in that the higher shrinkage fiber made from (a) polyacrylonitrile and (b) a copolymer of acrylonitrile and. Sodium styrenesulfonate spun side by side composite thread is