WO2000000681A1 - Elastanfäden und verfahren zu ihrer herstellung - Google Patents
Elastanfäden und verfahren zu ihrer herstellung Download PDFInfo
- Publication number
- WO2000000681A1 WO2000000681A1 PCT/EP1999/004178 EP9904178W WO0000681A1 WO 2000000681 A1 WO2000000681 A1 WO 2000000681A1 EP 9904178 W EP9904178 W EP 9904178W WO 0000681 A1 WO0000681 A1 WO 0000681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elastane
- dtex
- threads
- elastane threads
- titer
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
Definitions
- the invention relates to multifilament elastane threads with a total titer of up to 2500 dtex with high surface gloss and a band-shaped cross section formed from interconnected individual filaments, in which the individual filaments have an oval to circular cross section, in which the width of the elastane threads in cross section is at least four times the thickness the elastane threads is.
- Elastane threads are synthetic filament yarns. which are produced as mono- or multifilaments depending on the intended use with a total titer in the titer range from 11 to approx. 2500 dtex. Most elastane threads are glued multifilament yarns and, with their grooved or grooved surface, have a very specific textile character (compare P.A. Koch "Elastane fibers" in chemical fibers / textile industry Feb. 1979, pages 97-98).
- the cross-sectional shape of elastane threads largely depends on the manufacturing process. In the case of elastane threads spun using the dry spinning process, the cross-sectional shape sometimes changes considerably with the overall titer. whereby with finer titers mostly round and with coarser titers from approx. 500 dtex mostly oval to dumbbell-shaped cross-sections occur. This is presumably due to differences in the degree of evaporation of the spinning solvent under the respective spinning conditions. The respective spinning conditions thus influence the start of the coagulation and thus also the degree of shrinkage in the thread cross section.
- REPLACEMENT BLA ⁇ (RULE 26) While in the dry spinning of elastane threads for medium and coarse titers from approx. 160 dtex, multifilaments bonded from nozzles with several nozzle holes with averaged over the entire cross-section, mostly rounded to oval overall cross-sectional shapes are obtained, in the wet spinning process from medium titers there are usually ribbon-shaped cross-sections Multiple rows as if strung on a string of pearls.
- the ribbon-shaped cross sections can be of advantage and disadvantage in the desired end article.
- the ribbon shape is particularly disadvantageous when it comes to wide goods, e.g. in large articles if their glitter effect is undesirable.
- ribbon-shaped cross sections are also advantageous, for example for the production of diapers. Because of the wide cross-sectional shape, it is particularly easy to apply adhesive to the threads, which leads to good integration and adhesion of the elastic threads in the diaper article.
- the single spin titer is usually between 15 and 25 dtex.
- the known elastane threads also have a comparatively dull surface due to the surface and cross-sectional structure of their
- the object of the invention is to provide elastane threads with a total titer of up to 2500 dtex and a process for their production which have comparable mechanical properties to known elastane threads, a band-shaped one
- Elastane threads with a particularly uniform surface quality are those in which the individual spider titer of the individual filaments is at most 10 dtex, preferably at most 5 dtex.
- the elastane threads are preferably composed such that their threads consist of polyurethane with a proportion of at least 85% by weight of segmented polyurethane.
- Segmented polyurethane is in particular one that is produced on the basis of polyethers, polyesters, polyether esters, polycarbonates or on the basis of mixtures of these polymers.
- Another object of the invention is a wet spinning process for the production of multifilament elastane threads with a total titer up to 2500 dtex, with high surface gloss and a ribbon-shaped cross-section, by spinning a particularly at least 25% by weight elastane solution in a precipitation bath, washing and optionally stretching the threads formed , Drying, fixing, preparing and winding the threads, characterized in that the individual filaments with a
- the single filament titer of the single filaments is at most in the preferred method
- the elastane threads are additionally pressed onto the deflecting roller with a pressure roller after being brought together on the deflecting roller in the precipitation bath.
- the contact pressure of the pressure roller in the precipitation bath is preferably 1 to 5 bar (0.1 to 0.5 Mpa), for elastane threads with a total titer of up to 1000 dtex, in particular 2 to 3 bar (0.2 to 0.3 MPa).
- round single-filament cross sections are obtained when wet-spinning an 800 dtex elastane thread from a 385-hole nozzle with a single-spin titer of 4.2 dtex.
- elastane threads The surface of such elastane threads is smoother, has a smaller groove depth and therefore has a particularly high gloss. While an 800 dtex elastane thread, spun from a 172-hole nozzle with a single spin titer of 9.4 dtex, has a gloss number of 60, the gloss number increases to 100 with a single spin titer of 4.1 dtex (cf. Table II, examples 6 and 8).
- the significantly higher gloss of the elastane threads according to the invention. which is particularly evident in flat articles is based on the fact that the surface of the filaments is smooth and not fibrillated.
- the elastane threads also show furrows that run only parallel to the fiber axis and are not interrupted, so that the light striking the elastane threads is reflected in a directed manner by the individual filaments.
- Compressed air can be controlled pneumatically.
- Another object of the invention is the use of the elastane threads according to the invention for the production of textile goods, preferably flat goods, in particular for the production of knitted fabrics, woven or knitted fabrics.
- the invention also relates to the use of the wet-spun elastane threads according to the invention for the production of disposable hygiene articles, in particular for the production of diapers.
- the ribbon width in the examples is given in "microns" ( ⁇ m). 1 cm corresponds to 10,000 microns each.
- Z number of nozzle holes The single spin titer is a measured variable which indicates the thread weight immediately after the spinning solution has escaped into the precipitation bath.
- the elastane threads are wound flat on black metal plates so that the surface of the plate is completely covered with elastane threads.
- the luminance of the thread windings is measured with the goniophotometer depending on the scattering angle.
- the angle of incidence is 45 °.
- a barium sulfate plate serves as a non-glossy standard.
- Figure lb the cross section through an elastane thread with a total titer of
- FIG. 2a shows the part of a cross section through an elastane thread with a total titer of 800 dtex formed from 96 individual filaments
- Figure 2c the part of a cross section through an elastane thread with a
- DE-A-42 22 772 which was pretreated with 0.5% diethylamine for approx. 10 min at 140 ° C and had a spinning viscosity of 18 Pa.s, measured at 50 ° C, was removed from a 397-hole nozzle with 0, 08 mm bore diameter spun in a precipitation bath with 20% DMAC water solution.
- the precipitation bath temperature was 85 ° C.
- the threads were carried over a deflection roller that was just above the precipitation bath liquid
- a squeezing roller which only presses on the elastane threads which leave the washing roller in the direction of the dryer fixing rollers, was placed on the upper washing roller.
- the contact pressure of the squeeze roller was IO N.
- the wash bath temperature was 95 ° C.
- the squeeze roller has a hardness of 70 Shore and a contact pressure of 2 N / cm roller width. The contact pressure can be regulated by applying different counterweights.
- the twisted threads were then run over two heated rollers by looping the two heated rollers 12 times and treated at 240 ° C., which corresponds to a contact time of approx. 5 seconds. It was then prepared and the twisted thread was wound onto a winder at 120 m / min.
- the thread with the titer 795 dtex had a thread strength of 0.86 cN / dtex and one
- the single spin titer (EST) was 2.7 dtex.
- the microscopic evaluation shows a ribbon-shaped filament cross-section with round individual filaments.
- the ribbon width is 1,310 microns.
- the ribbon width is thus approximately 38% larger than in Example 2 of Table 1, where an analog titer was spun from a 96-hole nozzle.
- the thread surface is smooth and almost free of furrows and grooves. The only slightly pronounced longitudinal grooves run parallel to the fiber axis.
- the elastane threads have a significantly higher gloss level than the elastane threads according to Example 2.
- the gloss number is 230!
- Table 1 summarizes further examples of wet-spun elastane threads with a titer of 800 dtex, produced according to Example 1, but spun from different number of holes and spun at a rate of 60 m / min. As can be seen in Table 1, the ribbon width increases significantly with a finer single spinning titer (see Examples 3 - 5).
- Part of the spinning solution was, as described in Example 1, from 172 holes or
- Table 2 shows that the ribbon width increases by using a squeeze roller on the deflection roller in the precipitation bath by up to 40% of the original starting length.
- the shape of the individual filaments and the thread surface correspond to the information in Example 1.
- the gloss number increases significantly with finer individual spinning titers, whereas the
- Ribbon width has no influence on the gloss number.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/720,768 US6492021B1 (en) | 1998-06-30 | 1999-06-17 | Elastane fiber |
EP99927998A EP1095176A1 (de) | 1998-06-30 | 1999-06-17 | Elastanfäden und verfahren zu ihrer herstellung |
IL13987599A IL139875A0 (en) | 1998-06-30 | 1999-06-17 | Elastane fiber and method of production |
CA002336012A CA2336012A1 (en) | 1998-06-30 | 1999-06-17 | Elastane fiber and method of production |
AU45145/99A AU4514599A (en) | 1998-06-30 | 1999-06-17 | Elastane fiber and method of production |
JP2000557028A JP2002519528A (ja) | 1998-06-30 | 1999-06-17 | エラスタン繊維および製造方法 |
BR9911726-6A BR9911726A (pt) | 1998-06-30 | 1999-06-17 | Fios de elastano e processo para a sua preparação |
KR1020007015032A KR20010053304A (ko) | 1998-06-30 | 1999-06-17 | 엘라스탄 섬유 및 그의 제조 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19829164.7 | 1998-06-30 | ||
DE19829164A DE19829164A1 (de) | 1998-06-30 | 1998-06-30 | Elastanfäden und Verfahren zu ihrer Herstellung |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/720,768 A-371-Of-International US6492021B1 (en) | 1998-06-30 | 1999-06-17 | Elastane fiber |
US10/209,042 Division US6699414B2 (en) | 1998-06-30 | 2002-07-31 | Method of producing elastane fiber by wet spinning |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000000681A1 true WO2000000681A1 (de) | 2000-01-06 |
Family
ID=7872501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/004178 WO2000000681A1 (de) | 1998-06-30 | 1999-06-17 | Elastanfäden und verfahren zu ihrer herstellung |
Country Status (12)
Country | Link |
---|---|
US (2) | US6492021B1 (de) |
EP (1) | EP1095176A1 (de) |
JP (1) | JP2002519528A (de) |
KR (1) | KR20010053304A (de) |
AR (2) | AR019168A1 (de) |
AU (1) | AU4514599A (de) |
BR (1) | BR9911726A (de) |
CA (1) | CA2336012A1 (de) |
DE (1) | DE19829164A1 (de) |
IL (1) | IL139875A0 (de) |
TW (1) | TW548355B (de) |
WO (1) | WO2000000681A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000063472A1 (de) * | 1999-04-19 | 2000-10-26 | Bayer Faser Gmbh | Elastanspule |
WO2005035842A1 (fr) * | 2003-10-15 | 2005-04-21 | Albis | Procede et installation pour la fabrication d’un fil elastomere multifilamentaire plat |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829063A1 (de) * | 1998-06-30 | 2000-01-05 | Bayer Faser Gmbh | Elastane mit grobem Titer und Naßspinnverfahren zu ihrer Herstellung |
FI122332B (fi) * | 2008-10-20 | 2011-12-15 | Valtion Teknillinen | Kuitutuote sekä menetelmä läpinäkyvien alueiden muodostamiseksi kuitutuotteeseen |
CN111194364B (zh) | 2017-10-18 | 2022-07-26 | 旭化成株式会社 | 聚氨酯弹性纤维、其绕纱体、及包含其的制品 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526689A (en) * | 1968-04-03 | 1970-09-01 | Union Carbide Corp | Fused multifilament round spandex yarn |
US5007193A (en) * | 1990-01-17 | 1991-04-16 | E. I. Du Pont De Nemours And Company | Fishing lure with improved elastomeric skirt |
DE19504316C1 (de) * | 1995-02-10 | 1996-08-01 | Bayer Faser Gmbh | Verfahren zur Herstellung von mehrfädigen, naßgesponnenen Elastanfäden |
JPH1072726A (ja) * | 1996-07-02 | 1998-03-17 | Du Pont Toray Co Ltd | マルチフィラメント弾性糸の製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2951803A1 (de) | 1979-12-21 | 1981-07-02 | Bayer Ag, 5090 Leverkusen | Feinsttitrige synthesefasern und -faeden und trockenspinnverfahren zu ihrer herstellung |
DE4222772A1 (de) | 1992-07-10 | 1994-01-13 | Bayer Ag | Verfahren zur Herstellung von viskositätsstabilen, gelarmen hochkonzentrierten Elastan-Spinnlösungen |
DE4330725A1 (de) * | 1993-09-10 | 1995-03-16 | Bayer Ag | Verfahren zur Herstellung von Elastanfasern durch Einspinnen einer Kombination von PDMS und ethoxyliertem PDMS |
DE19829063A1 (de) * | 1998-06-30 | 2000-01-05 | Bayer Faser Gmbh | Elastane mit grobem Titer und Naßspinnverfahren zu ihrer Herstellung |
-
1998
- 1998-06-30 DE DE19829164A patent/DE19829164A1/de not_active Withdrawn
-
1999
- 1999-06-17 EP EP99927998A patent/EP1095176A1/de not_active Withdrawn
- 1999-06-17 JP JP2000557028A patent/JP2002519528A/ja active Pending
- 1999-06-17 IL IL13987599A patent/IL139875A0/xx unknown
- 1999-06-17 CA CA002336012A patent/CA2336012A1/en not_active Abandoned
- 1999-06-17 KR KR1020007015032A patent/KR20010053304A/ko not_active Application Discontinuation
- 1999-06-17 BR BR9911726-6A patent/BR9911726A/pt not_active IP Right Cessation
- 1999-06-17 WO PCT/EP1999/004178 patent/WO2000000681A1/de not_active Application Discontinuation
- 1999-06-17 US US09/720,768 patent/US6492021B1/en not_active Expired - Fee Related
- 1999-06-17 AU AU45145/99A patent/AU4514599A/en not_active Abandoned
- 1999-06-17 TW TW088110143A patent/TW548355B/zh not_active IP Right Cessation
- 1999-06-28 AR ARP990103108A patent/AR019168A1/es active IP Right Grant
-
2000
- 2000-08-24 AR ARP000104389A patent/AR025374A2/es active IP Right Grant
-
2002
- 2002-07-31 US US10/209,042 patent/US6699414B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526689A (en) * | 1968-04-03 | 1970-09-01 | Union Carbide Corp | Fused multifilament round spandex yarn |
US5007193A (en) * | 1990-01-17 | 1991-04-16 | E. I. Du Pont De Nemours And Company | Fishing lure with improved elastomeric skirt |
DE19504316C1 (de) * | 1995-02-10 | 1996-08-01 | Bayer Faser Gmbh | Verfahren zur Herstellung von mehrfädigen, naßgesponnenen Elastanfäden |
JPH1072726A (ja) * | 1996-07-02 | 1998-03-17 | Du Pont Toray Co Ltd | マルチフィラメント弾性糸の製造方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 098, no. 008 30 June 1998 (1998-06-30) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000063472A1 (de) * | 1999-04-19 | 2000-10-26 | Bayer Faser Gmbh | Elastanspule |
US6774064B1 (en) | 1999-04-19 | 2004-08-10 | Bayer Faser Gmbh | Elastane package |
WO2005035842A1 (fr) * | 2003-10-15 | 2005-04-21 | Albis | Procede et installation pour la fabrication d’un fil elastomere multifilamentaire plat |
FR2861091A1 (fr) * | 2003-10-15 | 2005-04-22 | Albis | Fil elastomere multifilamentaire plat, procede et installation pour la fabrication dudit fil |
Also Published As
Publication number | Publication date |
---|---|
KR20010053304A (ko) | 2001-06-25 |
CA2336012A1 (en) | 2000-01-06 |
US20030068494A1 (en) | 2003-04-10 |
DE19829164A1 (de) | 2000-03-30 |
TW548355B (en) | 2003-08-21 |
IL139875A0 (en) | 2002-02-10 |
EP1095176A1 (de) | 2001-05-02 |
BR9911726A (pt) | 2001-03-20 |
AR025374A2 (es) | 2002-11-20 |
JP2002519528A (ja) | 2002-07-02 |
AU4514599A (en) | 2000-01-17 |
US6699414B2 (en) | 2004-03-02 |
AR019168A1 (es) | 2001-12-26 |
US6492021B1 (en) | 2002-12-10 |
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