EP0290926B1 - Falschdralltexturiertes voluminöses Multifilamentgarn, Verfahren zu seiner Herstellung sowie Verwendung dieses Garns - Google Patents

Falschdralltexturiertes voluminöses Multifilamentgarn, Verfahren zu seiner Herstellung sowie Verwendung dieses Garns Download PDF

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Publication number
EP0290926B1
EP0290926B1 EP88107091A EP88107091A EP0290926B1 EP 0290926 B1 EP0290926 B1 EP 0290926B1 EP 88107091 A EP88107091 A EP 88107091A EP 88107091 A EP88107091 A EP 88107091A EP 0290926 B1 EP0290926 B1 EP 0290926B1
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EP
European Patent Office
Prior art keywords
filaments
fld2
yarn
groups
linear density
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88107091A
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German (de)
English (en)
French (fr)
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EP0290926A2 (de
EP0290926A3 (de
Inventor
Günther Bauer
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Hoechst AG
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Hoechst AG
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Publication date
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Publication of EP0290926A3 publication Critical patent/EP0290926A3/de
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    • 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
    • D02G3/24—Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns

Definitions

  • the invention relates to a false twist textured voluminous synthetic multifilament yarn made of a uniform raw material, consisting of at least two filament groups with different, but essentially identical individual titers ET 1 and ET 2.
  • the invention further relates to a method for producing and the use of such a multifilament yarn.
  • EP-OS 0 124 869 discloses a water-repellent, high-density textile fabric in which, according to some exemplary embodiments, a synthetic multifilament yarn made from two filament groups of different individual deniers is used, the individual denier of one filament group being extremely fine and the individual denier of the other filament group being significantly coarser .
  • this is not a false twist textured multifilament yarn. Rather, the unification of the finer and coarser filament groups takes place, among other things. when triggering their different shrinkages. This process is therefore complex, both in its implementation and in the finishing of the fabrics made from these yarns, since they have a minimal shrinking force.
  • a synthetic multifilament yarn from a uniform raw material, consisting of at least two filament groups with different, but essentially identical, individual titer are already known.
  • the two filament groups are jointly stretch-textured after spinning using the false twist process.
  • the two filament groups are pre-oriented differently so that the draw ratio of the filament group with coarser single titer is smaller than that of the filament group with finer single titer.
  • the draw ratio is to be understood as the draw ratio in which a draw texturing of each of the individual filament groups has a maximum tensile strength extension of 25% (compare e.g. DE-OS 23 08 031, Lenzinger reports, issue 47, 1979, p.
  • a false-twist textured yarn which preferably consists of bundles with different capillary thicknesses, is given a fiber-yarn-like character in that it is rotated alternately in the S and Z directions due to the extremely low outlet tension during texturing and the associated slipping of the twist (see DE-OS 29 34 762 and EP-OS 0 022 065).
  • these yarns similar to staple fiber yarns, these yarns have only a small volume due to their high twist and are unsuitable for the intended use.
  • the invention has for its object to provide a false twist textured voluminous synthetic fine capillary, lint and loop free and inexpensive to manufacture multifilament yarn and a method for producing such a multifilament yarn.
  • a false twist textured voluminous synthetic multifilament yarn made of a uniform raw material, consisting of at least two filament groups with different, but essentially the same single titer ET1 and ET2 according to the invention characterized in that for the finer single titer ET2 ⁇ 1 dtex and for the total titer T. of the textured yarn T> 100 x ET2 applies.
  • the individual titer of the two filament groups By selecting the individual titer of the two filament groups, it is possible to overcome the "lobed" grip of fabrics that consist only of multifilament yarns with a single titer smaller than 1 dtex.
  • the filament yarns according to the invention are bulky. They have no alternating S and Z filament groups or core and sheath filament groups.
  • the filament yarns according to the invention are twist-free.
  • a round cross section is used for the individual capillaries of the finer filament group and a profiled cross section for the individual capillaries of the coarser filament group, for example in the form of a pronounced Y. Since the profiled cross section already gives the multifilament yarn increased rigidity, the titer ratio should be in this case 1.5 ⁇ ET1 / ET2 ⁇ 4 to get voted.
  • the synthetic polymers used can be pure or modified polyesters or polyamides.
  • the polyesters can be subjected to direct esterification or transesterification and subsequent Condensation have been produced.
  • ethylene glycol other diols, such as 1,3-propanediol, 1,4-butanediol, etc., and other dicarboxylic acids, such as isophthalic acid, adipic acid, etc., can also be used instead of terephthalic acid.
  • the polyamides can be either type 6 or 6.6 or their copolymers.
  • the degree of orientation of the two filament groups and the draw ratio when stretch texturing together are selected so that the co-texturing involves drawing the two filament groups under essentially the same tension.
  • co-texturing in contrast to the previously known cotexturing processes which aim to produce loops or protruding fiber ends, it has been possible to produce a false-twist textured, fine-capillary, lint-free and loop-free multifilament yarn.
  • the method according to the invention is characterized by low manufacturing costs.
  • the raw material granules are dried, melted, filtered and pressed through spinnerets in accordance with the generally customary yarn production process.
  • the resulting multifilament yarns are cooled by an air stream, provided with a spin finish, swirled and wound up.
  • the different pre-orientation of the two filament groups can be achieved by spinning at different spinning take-off speeds on different spinning systems. In this case, the two filament groups are only combined during stretch texturing.
  • the different pre-orientation of the two filament groups by means of suitable procedural measures at adjacent spinning positions, that is to say with the same spinning take-off speed, so that the two filament groups are combined after preparation and then swirled and wound up together.
  • These procedural measures for a higher pre-orientation of the coarser filament group can consist in profiling the cross-section of the individual capillary.
  • Another possibility is an additional heat treatment of the filament group in question in a tube heated to 80 ° C to 150 ° C, which is attached in the area between the blowing and preparation, such as in EP-OS 0 013 101, examples 5 and 6 and figure 2 described.
  • Preferred areas of application of the multifilament yarn according to the invention are water-repellent fabrics, clean room clothing and the conductive component in sports clothing. If only one heater is heated during stretch texturing, high-shrinking multifilament yarns are created, which are particularly suitable for the production of fine-pored textile fabrics for rainwear and cleanroom clothing.
  • a yarn according to the invention with a shrinkage ⁇ 10% at 130 ° C. is suitable for use in double-surface articles which contain a conductive and a sorptive component for reasons of clothing physiology, which is obtained by additionally heating the second heater during stretch texturing.
  • the individual titer of the Spinning thread (spinning titer), measured in dtex, applied on a logarithmic scale.
  • the ordinate shows the draw ratio of the filament, starting at 1: 1.0 in the origin.
  • a measure of the degree of orientation of a spun fabric is the stretching ratio VE used in the stretch texturing of the outlet speed at the delivery unit 2 to the inlet speed at the delivery unit 1 on the stretch texturing machine.
  • the draw ratio is to be understood as the draw ratio which leads to a maximum tensile force elongation of the draw textured yarn of approximately 25%.
  • the curves a, b, c shown in the diagram represent the relationship between the draw ratio and the spinning titer, curve a for a spinning yarn with a spinning take-off speed of 4000 m / min with a round cross-section of the individual capillary, curve b for a spinning yarn with a spinning take-off speed of 3000 m / min with a round cross section of the individual capillaries and curve c for a spinning yarn with a spinning take-off speed of 3000 m / min with a Y cross section of the individual capillaries.
  • the diagram allows the spin filament for the two filament groups to choose the respective pre-orientation of the filament groups so that their draw ratios are the condition VE2 - VE1 ⁇ 0.1 fulfill.
  • a spinning thread 1 made of PET is produced with a conveyance of 28 g / min by spinning from 22 round bores at a spinning take-off speed of 4000 m / min.
  • This spinning thread 1 with the titer 70f22 is presented as a trial to a stretch texturing machine, the stretching ratio of which is set to 1: 1.28 and the iron temperature of which is set to 195 ° C., and stretch textured at 400 m / min winding speed.
  • the tensile force of the yarn after leaving the texturing spindle is 24 cN.
  • the subsequent tear test the following measured values were obtained: tenacity 36 cN / tex, maximum tensile elongation 24%.
  • a spinning thread 2 is produced from the same raw material with a conveyance of 20 g / min, a number of round bores of 88 and a spinning take-off speed of 3000 m / min.
  • the drawing texturing of the spinning thread 2 on the same drawing texturing machine at the same temperature and winding speed as the spinning thread 1, but with a drawing ratio of 1: 1.34, the tensile force of the yarn being 23 cN after leaving the texturing spindle, the following measured values result : Fineness 37 cN / tex, maximum tensile elongation 25%.
  • the draw ratio of the two spun threads 1 and 2 differs by 5%, so the difference is less than 0.1.
  • both spun threads 1 and 2 are used together on one Texturing point under the conditions of the filament 1 stretch textured.
  • the tensile force of the yarn after leaving the texturing spindle is 51 cN. This creates a loop-free, lint-free, voluminous multifilament yarn with the following properties: Fineness 37 cN / tex, maximum tensile elongation 22%, shrinkage of 41% at 130 ° C.
  • the multifilament yarn has a total titer of 116 dtex and contains 88 single capillaries with a single titer ET2 of 0.6 dtex and 22 single capillaries with a single titer ET1 of 2.5 dtex.
  • the data of the filaments 1 and 2 are entered as points A and B in the diagram of the single figure.
  • the stretching ratios for the individual titers can be found from lines a and b.
  • single capillaries with a round cross section are used for the spinning thread 2 with a finer single titer and single capillaries with a profiled cross section, for example in the form of a Y, for the spinning thread 1 with a coarser single titer.
  • the data for the two strands 1 (corresponding to point C of the diagram) and 2 are as follows:
  • the two spinning threads 1 and 2 are spun on side by side spinnerets of the same spinning system, that is to say with the same spinning take-off speed. After this Cooling and preparation of the two previously running spun threads are brought together and swirled together before winding.
  • the combined spun thread thus obtained is stretch-textured under the conditions of the spinning thread 1.
  • the tensile force of the yarn after leaving the texturing spindle is 51 cN.
  • the yarn thus obtained is lint and loop free and has the following properties: tenacity 35 cN / tex, maximum tensile elongation 20%, shrinkage of 45% at 130 ° C.
  • the multifilament yarn has a total titer of 122 dtex and contains 88 single capillaries with a round cross section with a single titer ET2 of 0.6 dtex and 60 single capillaries with a Y cross section with a single titer ET1 of 0.9 dtex.
  • the stiffness of the yarn is increased according to the points B 'and C' in the figure.
  • spinning pumps with different feed per revolution are used for the spun threads 1 and 2 spun next to one another.
  • the data for the two strands are as follows:
  • the swirled combined spun thread 1 + 2 is textured with the draw ratio 1: 1.36 and otherwise at the same temperature and speed as in Example I.
  • the tensile force of the yarn after leaving the texture spindle is 52 cN.
  • the voluminous multifilament yarn thus obtained is lint and loop free and has the following data: tenacity 36 cN / tex, maximum tensile elongation 23%, shrinkage 42% at 130 ° C.
  • the titer is 118 dtex.
  • the multifilament yarn contains 40 individual capillaries with a round cross section with a single titer ET2 of 0.8 dtex and 48 individual capillaries with a Y cross section with a single titer ET1 of 1.3 dtex.
  • Two spinning bobbins of the spinning thread 2 from Example I with the titer 67f88 are textured together with the draw ratio 1: 1.34 and, moreover, under the conditions described there. A fluffy yarn is created. This result is also obtained when the stretching texture ratio is gradually reduced to 1: 1.28, 1: 1.24 or 1: 1.20, i.e. no suitable texturing conditions can be found for this yarn.
  • the spun threads 1 and 2 described in Example I are simultaneously on two adjacent texturing points under the texturing conditions specified in Example I, namely with the stretching ratios 1: 1.28 or 1: 1.34 textured. This ensures that both capillary bundles are fed with the same tension from the texturing zone of the winding. Despite these optimal conditions, it was not possible to mix both yarns as intensely as required for a suitable warp yarn by swirling in an air stream. Already after the texturing process, the yarn 2 with the fine single titer 0.6 dtex is mixed so intensively that it can no longer be opened in the air stream to the extent necessary for a thorough mixing of the two yarns.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP88107091A 1987-05-13 1988-05-03 Falschdralltexturiertes voluminöses Multifilamentgarn, Verfahren zu seiner Herstellung sowie Verwendung dieses Garns Expired - Lifetime EP0290926B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715971 DE3715971A1 (de) 1987-05-13 1987-05-13 Falschdralltexturiertes multifilamentgarn, verfahren zu seiner herstellung sowie verwendung dieses garns
DE3715971 1987-05-13

Publications (3)

Publication Number Publication Date
EP0290926A2 EP0290926A2 (de) 1988-11-17
EP0290926A3 EP0290926A3 (de) 1991-01-16
EP0290926B1 true EP0290926B1 (de) 1993-11-10

Family

ID=6327450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107091A Expired - Lifetime EP0290926B1 (de) 1987-05-13 1988-05-03 Falschdralltexturiertes voluminöses Multifilamentgarn, Verfahren zu seiner Herstellung sowie Verwendung dieses Garns

Country Status (5)

Country Link
US (1) US4845934A (enrdf_load_stackoverflow)
EP (1) EP0290926B1 (enrdf_load_stackoverflow)
JP (1) JPS63303136A (enrdf_load_stackoverflow)
KR (1) KR880014151A (enrdf_load_stackoverflow)
DE (2) DE3715971A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659669B1 (fr) * 1990-03-16 1992-06-12 Rhone Poulenc Fibres Fil a aspect file de fibres a base de polyamide.
DE9302437U1 (de) * 1993-02-19 1993-04-15 Stanitzok, Horst, 7811 St. Peter Vorrichtung zur kosmetischen Schälung der Haut
US5593751A (en) * 1995-06-02 1997-01-14 Monsanto Company Nylon fiber blends for saxony carpets
US5652038A (en) * 1995-07-12 1997-07-29 Springs Industries, Inc. Yarn and tufted fabric for use in a bathroom rug
RU2209729C1 (ru) * 2001-12-21 2003-08-10 Открытое акционерное общество "ВАТИ" Способ изготовления фрикционного изделия
CN112513351A (zh) * 2018-09-10 2021-03-16 通用纤维公司 仿羊毛合成复丝纱线

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461094A (en) * 1944-04-12 1949-02-08 American Viscose Corp Method of making lightweight filamentous structures
US3033240A (en) * 1958-12-19 1962-05-08 Celanese Corp Pile carpet
GB1074681A (en) * 1963-02-21 1967-07-05 Chemstrand Ltd Improvements in or relating to the production of bulked yarns
US3472017A (en) * 1964-08-10 1969-10-14 Asahi Chemical Ind Specific filament yarns
CH426089A (de) * 1965-01-13 1967-06-15 Heberlein & Co Ag Verfahren zur Herstellung eines elastischen Textilgarns
US3608296A (en) * 1966-07-13 1971-09-28 Du Pont Polyester yarn with silk-like appearance
GB1234250A (enrdf_load_stackoverflow) * 1967-08-17 1971-06-03
DE2308031B2 (de) * 1973-02-19 1976-02-26 Hoechst Ag, 6000 Frankfurt Voluminoeses falschdrahttexturiertes filamentgarn und verfahren zu seiner herstellung
US4287714A (en) * 1978-08-31 1981-09-08 Oda Gosen Kogyo Kabushiki Kaisha False-twisting system
JPS5927410B2 (ja) * 1978-12-15 1984-07-05 帝人株式会社 多層構造嵩高紡績糸およびその製造方法
US4262481A (en) * 1979-02-21 1981-04-21 Toray Industries, Inc. Spun yarn-like high bulky textured yarns and process for producing same
CH624527B (de) * 1979-06-07 Schweizerische Viscose Falschdralltexturiertes filamentgarn aus synthetischen polymeren.
CA1235044A (en) * 1983-05-04 1988-04-12 Fumio Shibata High density, water-repellent textile fabric
US4712366A (en) * 1985-12-28 1987-12-15 Nippon Ester Co., Ltd. Denier-mixed composite yarn, denier-mixed special thick and thin yarn, false twist yarn and denier-mixed shrinkage-mixed composite yarn

Also Published As

Publication number Publication date
EP0290926A2 (de) 1988-11-17
EP0290926A3 (de) 1991-01-16
US4845934A (en) 1989-07-11
KR880014151A (ko) 1988-12-23
JPS63303136A (ja) 1988-12-09
DE3885505D1 (de) 1993-12-16
DE3715971A1 (de) 1988-12-01
DE3715971C2 (enrdf_load_stackoverflow) 1990-03-22

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