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EP0398221B2 - Garn aus Kern-Mantel-Fäden und Verfahren zu dessen Herstellung - Google Patents

Garn aus Kern-Mantel-Fäden und Verfahren zu dessen Herstellung Download PDF

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Publication number
EP0398221B2
EP0398221B2 EP90109044A EP90109044A EP0398221B2 EP 0398221 B2 EP0398221 B2 EP 0398221B2 EP 90109044 A EP90109044 A EP 90109044A EP 90109044 A EP90109044 A EP 90109044A EP 0398221 B2 EP0398221 B2 EP 0398221B2
Authority
EP
European Patent Office
Prior art keywords
sheath
core
filaments
yarn
yarn according
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
EP90109044A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0398221B1 (de
EP0398221A1 (de
Inventor
Franciscus Arnoldus Theresia Lijten
Johannes Jacobus Meerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
diolen Industrial Fibers Bv
Original Assignee
Akzo Nobel NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25880894&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0398221(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3915819A external-priority patent/DE3915819A1/de
Application filed by Akzo Nobel NV filed Critical Akzo Nobel NV
Publication of EP0398221A1 publication Critical patent/EP0398221A1/de
Publication of EP0398221B1 publication Critical patent/EP0398221B1/de
Application granted granted Critical
Publication of EP0398221B2 publication Critical patent/EP0398221B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/06—Distributing spinning solution or melt to spinning nozzles

Definitions

  • the invention relates to a yarn made from core-sheath threads the core and sheath of the core-sheath threads by extrusion are produced, and a method for the production thereof.
  • Core-sheath threads and their manufacturing processes are numerous known.
  • special spinning devices are required are to prevent the occurrence of so-called homo threads even at low To avoid the proportion of sheath.
  • the known spinning device can not be avoided that core-sheath threads in the yarn obtained are included, the fluctuating coat proportion exhibit, even sections without a jacket occur, and that in the yarn obtained, the fluctuation range of the sheath portion of the core-sheath threads among themselves strongly fluctuates.
  • a method according to the preamble of claim 12 is based DE-B-1 158 205.
  • yarns made from core-sheath threads should be the desired ones Properties of the core material (strength, shrinkage, Elongation, birefringence, etc.), the sheath other properties of the yarn (adhesion to others Materials, dyeability, grip, chemical or mechanical resistance, etc.) improved.
  • the average coat proportion must be used 20 vol .-% and more can be chosen to the fluctuation of the To keep the coat proportion within limits and the properties of the Core material based on the total cross-section of the core-sheath thread to get reasonably even.
  • the object of the present invention is to use new ones more suitable yarns from core-sheath threads are available to provide, if necessary, one-component threads (Homo threads) included, in which the core and sheath of the core-sheath threads made by extruding spinnable polymers are, and at least almost all core-sheath threads have a full coat.
  • the yarns are said to be one better utilization of the properties of the core-shell material without deteriorating the properties of the Ensure jacket material.
  • the sheath portion of the core-sheath threads should also be more uniform below 20% by volume can be achieved.
  • M ⁇ 0.1 M means that for the determination of A all core-sheath threads are taken into account, the M vol .-% Jacket based on the total volume of each Have core sheath thread, wherein in determining the Jacket portion M a range of ⁇ 10% is taken into account. Because the above conditions are met at the same time , it follows that M can only assume such values where A becomes 100% at most.
  • yarns according to the invention have, A ⁇ 40 + 7 (0.1 M) 8th , prefers A ⁇ 50 + 100 (0.1 M) 8th applies excellent properties.
  • such yarns show significantly improved specific properties.
  • the specific strength (cN / dtex) is significantly higher for yarns according to the invention than for the known ones Yarns made from core-sheath threads, and also higher than monocomponent yarns, which only consist of the core polymer.
  • the threads of the yarn according to the invention can have practically all known cross-sectional shapes.
  • threads with round cross-section are preferred for tire cords, while for emphasis of light effects that may be desired, for example, in carpet yarns, threads with a trilobal cross section to be favoured.
  • Certain properties of the yarn become particularly good with one Yarn in which the threads, in particular the core-sheath threads, have a trilobal cross-section.
  • the following polymers have proven particularly useful as a polymer combination for core and sheath: core coat Polyethylene terephthalate (PET) Polyamide 66 (PA 66) Polyethylene terephthalate (PET) Mixture of polyamide 66 (PA 66) and poly (m-xylylene adipamide) Polyamide 46 (PA 46) Polyamide 66 (PA 66) Polyethylene terephthalate (PET) with high viscosity Low viscosity polyethylene terephthalate (PET) Polyethylene terephthalate (PET) Mixture of polyethylene terephthalate (PET) and polyvinyl difluoride (PVDF) Polyethylene naphthalate (PEN) Polyamide 66 (PA66) Polyethylene naphthalate (PEN) Polyamide 46 (PA46)
  • the yarns according to the invention have a variety of uses.
  • Sewing threads made of conventional polymers in the core can be resistant to high temperatures Polymers are coated, and are therefore suitable for very high sewing speeds with ropes and nets
  • the sheath can be made of yarns for chemical resistance, UV resistance or temperature resistance improve.
  • Driving belts or conveyor belts can be used an improvement in adhesion due to the sheath of the core-sheath threads between the core and the elastomer. Also at fiber-reinforced plastics can do that Adhesion between yarn and plastic improved become.
  • the core-sheath threads can be over the sheath the dyeability of the threads can be improved, even if the Core made of highly conductive material to improve the antistatic Properties exist, the color of which is very often dark and difficult to dye with other colors.
  • the Core made of highly conductive material to improve the antistatic Properties exist, the color of which is very often dark and difficult to dye with other colors.
  • By Choice of different shrinking material between Core and sheath material can be used when using such yarns for the production of carpets by exposure to heat in the finished Carpet or in textile products a significant ripple of the yarns are caused. Improve profiled yarns the scattering of light.
  • special selection of the Sheath material of the core-sheath threads can change the fire behavior and / or the pollution behavior from such Core-coat threads made carpets or textiles be significantly improved. Also mold or Rotting behavior can be reduced.
  • a hydrophobic coat can absorb moisture can be effectively prevented by the core-sheath threads. This is particularly interesting when using the invention Yarns in the textile sector. It is also possible already polymer mixed with color pigments as a sheath component to spin, creating spun-dyed core-sheath threads surrender.
  • the object of the invention is also achieved by a Process for producing the yarns according to the invention the core component in a manner known per se (EP-A-0 011 954) via a first spinneret plate to a second Spinneret plate is fed in several individual streams, being between the first and second spinneret plates each core component single stream flowing around it Sheath component is supplied, both components together be spun, stretched and wound, whereby at least around the area of Single streams of the core component around the cladding component is exposed to a flow resistance which is thereby is characterized by the fact that a mesh is used as flow resistance is used, which has a hole for each individual stream having.
  • the method according to the invention can be carried out in one step (without Intermediate winding) or multi-stage (with intermediate winding) be performed.
  • the mesh is the whole Clearance between the first and second spinneret plates with the exception of the holes for the individual flows.
  • Other flow resistances such as porous, for example Plates can be used.
  • Through the mesh can also be used with spinneret plates of larger dimensions The distance between the two spinneret plates is the same everywhere be kept large because the mesh at the same time serves as a spacer plate.
  • targeted core-sheath threads can be produced by Have different sheath proportions of thread to thread.
  • different ones are used for the individual core flows Resistors selected for the sheath currents. Will the resistance chosen so high that a flow around the jacket material to avoid a special core current causes one-component threads in a simple manner.
  • Such meshes have proven particularly useful, which are commercially available under the name R.V.S. X mesh rolled, where x assumes values from 30 to 500 are available.
  • R.V.S. means that it is stainless steel while x mesh means x wires per inch (2.54 cm) in can be selected in both directions in the sieve, the Wires are interwoven and have a diameter of Have 0.5 to 0.025 mm.
  • the permeability K of the flow resistance to be used is preferably between 10 -11 to 3 ⁇ 10 -10 m 2 .
  • a core-sheath single thread be made by a coat of very uniform thickness over the circumference and over the length of the Core-sheath single thread.
  • FIG. 1 shows which area is covered by the yarns according to the invention made from core-sheath threads can be. It shows a diagram in which on the Abscissa of the mantle fraction in vol Share A in% of the core-sheath threads with a sheath share M ⁇ 0.1 M of all core-sheath threads in the yarn are.
  • the distribution possible in the prior art results hatched from the state of the art Area.
  • FIG. 1 A basic process scheme is shown schematically in FIG shown for producing the yarns of the invention.
  • 1 denotes a spinneret pack which flanged a spinneret plate combination 2 3, 4, 5 and 6 is explained in more detail.
  • the spinneret pack 1 are more common Way upstream of extruder and melt lines, (in the Figure not shown).
  • a stretching unit 3, 4 fed and then on a bobbin 6 wound as a finished yarn.
  • FIG 3 is a section of a from the state of the Technically known spinneret shown in which a first Spinneret plate with 10 and a second spinneret plate with 11 is designated.
  • the core melt flow is over Spinnerets 12 through the first spinneret plate 10 of the supplied second spinneret plate 11 and opens into the spinneret cup 13.
  • the jacket stream flows into the Space between the nozzle plate 10 and 11 and flows around thus each core stream coming from a nozzle 12. To this way, each core component individual stream flows around it supplied the jacket component, after which both components together through the nozzle cup 13 into the spinneret opening 14 flow, from which these are extruded.
  • elevations 15 are provided on the second nozzle plate 11.
  • a first spinneret plate is 20, one second spinneret plate designated 21.
  • the feeding of the The core component takes place via opening 26 in a nozzle channel 22, which is in the second nozzle plate 21 as a channel 23 continues.
  • the jacket component is via ring channels 28 evenly distributed between nozzle plate 20 and 21, wherein the space between the nozzle plate 20 and 21 with a Metal wire mesh 27 is filled in such a way that the nozzle channels 22 and 23 remain free throughout.
  • the jacket component is thus from the ring channel 28 over the metal wire mesh 27 fed around the core component.
  • the metal wire mesh acts on the sheath component as Flow resistance.
  • the core and sheath components become common spun over the nozzle 24.
  • FIGS. 5 and 6 show an embodiment of a spinneret, as they use for the inventive method 5, a longitudinal section and FIG. 6 a Represents cross section.
  • the core component is channel 32 of the first spinneret plate 20 while the Sheath component via channel 33 (continuation is dashed shown because channel 33 runs outside the drawing plane) via its continuation 34 through the first spinneret plate 20 into the ring channels (not designated) between the first and second spinneret plate.
  • the flow resistance 27 is inserted, which at the same time as a spacer between the first and second nozzle plate 20 and 21 acts.
  • At 31 are centering pins and designated with 30 seals.
  • Bushes 35 prevent one Leakage of the jacket component between channel plate 29 and first spinneret plate 20.
  • Figure 7 is a partial cross section of a yarn made of core-sheath threads shown as it is according to the prior art is available.
  • the coat is 37 and the core is 36 designated.
  • core is 36 designated.
  • core and Vary the surface area from thread to thread.
  • Shell and / or core surfaces can be determined.
  • Figure 8 is a corresponding partial cross section yarns according to the invention shown. Here falls the Uniformity of the core surface 38 and the outer surface 39.
  • Examples 1 to 9 show the range of variation, within which the yarns of the invention are made can.
  • a polyester was used as the core polymer with a relative viscosity typical for textile yarns (1 g polymer in 100 g m-cresol, measured at 25 ° C), in the Examples 4 to 6 a polyester with a for technical Yarns low relative viscosity, and in the examples 7 to 9 a high viscosity polyester as he used for example for tire cords or for sewing threads is selected. In all cases it was used as a jacket material Polyamide 66 (PA66) used.
  • PA66 Polyamide 66
  • the core-sheath threads were made by a process as explained in more detail above with reference to FIG. 2 has been. However, there was no stretching.
  • the procedural conditions and the polymers used result from Table 1.
  • Table 1 also shows what percentage (A (%)) of the core-sheath threads M Vol .-% sheath (taking into account all core sheath threads, the (M ⁇ 0.1 M)% coat) of the total volume of each Have thread.
  • the specification of A (%) is around statistical mean values of 10 cross-sectional measurements different places of the respective yarn.
  • the values of A prove the uniformity with which the yarns according to the invention can be made available, and the diameters D of the individual core-sheath threads in the yarn can also be described as very uniform, because these also lie in a range of approximately (D. ⁇ 0.1 D).
  • a coat material was in Examples 10 and 11 polyamide 66 (PA66) and in Examples 12 to 15 a mixture of polyamide 66 and 0.3 % By weight poly (m-xylylene adipamide) (in the table with "PA66 + Addition "designated) used.
  • PA66 polyamide 66
  • m-xylylene adipamide poly (m-xylylene adipamide)
  • Each core-shell combination was once at 900 m / min once wound at 500 m / min without stretching, whereby again a method according to FIG. 2 was carried out.
  • Flow resistance became a mesh with the designation "R.V.S. 60 mesh rolled" used. This mesh So it was made of stainless steel wire. As well in Longitudinally and transversely, there were 60 wires per inch (2.54 cm) interwoven.
  • the spinneret used corresponded to that shown in FIGS. 4 to 6 shown.
  • Example 14 a 0.4 m long heating tube was used directly to maintain a slow cooling in the course of the process while maintaining the spinneret.
  • the selected process conditions are shown in Table 2.
  • the yarns obtained were then on a drawing machine stretched.
  • the yarn ran from the spinning bobbin in a first trio. From the trio, the yarn was over one Septet fed to a second trio and then through a 10 m long steam treatment section, in which the yarn with steam treated with a temperature of 250 ° C, a third Trio fed and then maintaining the stretching speed wound up.
  • the septet was at a temperature kept at 75 ° C.
  • the draw ratios and draw speeds selected for the yarns according to Examples 10 to 15 are shown in Table 3.
  • the draw ratio of the septet means the draw ratio which was applied to the yarn as it passed through the septet.
  • the total draw ratio results from the speed difference between the first and third trio. example 10th 11 12th 13 14 15
  • Aspect ratio of septet 2.48 3.30 2.51 3.10 3.21 3.70 Total stretch ratio 3.80 5.45 3.80 5.10 5.15 6.50 Stretching speed (m / min) 138 185 138 144 185 184
  • LASE means 1% (N) the strength of the yarn in (N) at a given Elongation of 1% (Load at specific elongation).
  • LASE 2% and LASE 5% correspond to LASE 2% and LASE 5%.
  • HAS 4 '/ 160 ° C (hot air shrinkage 4 min at 160 ° C) gives that Hot air shrinkage of the yarn when the yarn is under a 4 min Exposed to 5 m N / tex at a temperature of 160 ° C becomes.
  • the properties the tire cord with this construction are under the Designation "cord” also listed in Table 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
EP90109044A 1989-05-16 1990-05-14 Garn aus Kern-Mantel-Fäden und Verfahren zu dessen Herstellung Expired - Lifetime EP0398221B2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3915819 1989-05-16
DE3915819A DE3915819A1 (de) 1989-05-16 1989-05-16 Garn aus kern-mantel-faeden und verfahren zu dessen herstellung
DE3926246 1989-08-09
DE3926246 1989-08-09

Publications (3)

Publication Number Publication Date
EP0398221A1 EP0398221A1 (de) 1990-11-22
EP0398221B1 EP0398221B1 (de) 1993-06-23
EP0398221B2 true EP0398221B2 (de) 2000-03-15

Family

ID=25880894

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90109044A Expired - Lifetime EP0398221B2 (de) 1989-05-16 1990-05-14 Garn aus Kern-Mantel-Fäden und Verfahren zu dessen Herstellung
EP90907033A Pending EP0425629A1 (de) 1989-05-16 1990-05-14 Garn aus kern-mantel-fäden und verfahren zu dessen herstellung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP90907033A Pending EP0425629A1 (de) 1989-05-16 1990-05-14 Garn aus kern-mantel-fäden und verfahren zu dessen herstellung

Country Status (13)

Country Link
EP (2) EP0398221B2 (pt)
JP (2) JP3391789B2 (pt)
KR (1) KR0140074B1 (pt)
CN (1) CN1021581C (pt)
AR (1) AR245232A1 (pt)
BR (1) BR9006770A (pt)
CZ (1) CZ278383B6 (pt)
DE (1) DE59001843D1 (pt)
ES (1) ES2041468T5 (pt)
HU (1) HU210409B (pt)
MX (1) MX174104B (pt)
SK (1) SK238890A3 (pt)
WO (1) WO1990014452A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107956127A (zh) * 2017-12-12 2018-04-24 浙江华峰氨纶股份有限公司 一种具有皮芯结构聚氨酯弹性纤维的制备方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2084866C (en) * 1992-06-18 2000-02-08 Matthew B. Hoyt Reduced staining carpet yarns and carpet
MX9304488A (es) 1992-08-10 1994-02-28 Akzo Nv Hilo de poliester con buena adhesion al caucho y procedimiento para su preparacion.
ATE165647T1 (de) * 1993-02-19 1998-05-15 Hoechst Celanese Corp Heterofasern für verstärkungsseile in treibriemen
US5447794A (en) * 1994-09-07 1995-09-05 E. I. Du Pont De Nemours And Company Polyamide sheath-core filaments with reduced staining by acid dyes and textile articles made therefrom
US20050133948A1 (en) * 2003-12-22 2005-06-23 Cook Michael C. Apparatus and method for multicomponent fibers
CN101880920B (zh) * 2010-06-30 2011-09-07 盐城市中联复合纤维有限公司 尼龙66/增粘聚酯复合皮芯纤维的制备方法
US9022229B2 (en) * 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
KR101537260B1 (ko) * 2013-03-14 2015-07-16 코오롱패션머티리얼(주) 신축성 및 냉감이 우수한 나일론 잠재권축사
CN105274649A (zh) * 2015-11-24 2016-01-27 马海燕 一种大直径pvdf-pa6皮芯型复合单丝及其生产方法
CN105401234B (zh) * 2015-12-29 2019-07-12 重庆市大通茂纺织科技有限公司 一种复合纤维的螺杆挤压方法
CN106945321A (zh) * 2016-01-06 2017-07-14 余姚市创辉树脂笔头厂 一种微孔纤维棒料制作方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL123334C (pt) * 1955-06-30
US3704971A (en) * 1969-06-16 1972-12-05 Du Pont Spinneret assembly
DE2964229D1 (en) * 1978-11-30 1983-01-13 Ici Plc Apparatus for spinning bicomponent filaments
JPS63190007A (ja) * 1987-01-27 1988-08-05 Kuraray Co Ltd 芯鞘型複合紡糸口金装置
JPH06163708A (ja) * 1992-11-26 1994-06-10 Kawasaki Steel Corp 金属膜の堆積方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107956127A (zh) * 2017-12-12 2018-04-24 浙江华峰氨纶股份有限公司 一种具有皮芯结构聚氨酯弹性纤维的制备方法

Also Published As

Publication number Publication date
EP0398221B1 (de) 1993-06-23
SK278606B6 (en) 1997-11-05
HU904475D0 (en) 1991-07-29
CN1021581C (zh) 1993-07-14
SK238890A3 (en) 1997-11-05
HU210409B (en) 1995-04-28
DE59001843D1 (de) 1993-07-29
KR920701538A (ko) 1992-08-12
MX174104B (es) 1994-04-21
HUT65386A (en) 1994-06-28
CN1049193A (zh) 1991-02-13
KR0140074B1 (ko) 1998-07-01
WO1990014452A1 (de) 1990-11-29
EP0398221A1 (de) 1990-11-22
CZ278383B6 (en) 1993-12-15
ES2041468T5 (es) 2000-07-16
EP0425629A1 (de) 1991-05-08
JP2001226828A (ja) 2001-08-21
BR9006770A (pt) 1991-08-06
CZ238890A3 (en) 1993-01-13
JPH03506053A (ja) 1991-12-26
AR245232A1 (es) 1993-12-30
JP3391789B2 (ja) 2003-03-31
ES2041468T3 (es) 1993-11-16

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