WO2005090662A2 - Procede de melange de fils continus - Google Patents

Procede de melange de fils continus Download PDF

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Publication number
WO2005090662A2
WO2005090662A2 PCT/EP2005/002670 EP2005002670W WO2005090662A2 WO 2005090662 A2 WO2005090662 A2 WO 2005090662A2 EP 2005002670 W EP2005002670 W EP 2005002670W WO 2005090662 A2 WO2005090662 A2 WO 2005090662A2
Authority
WO
WIPO (PCT)
Prior art keywords
filament yarn
filaments
filament
yarns
consisting essentially
Prior art date
Application number
PCT/EP2005/002670
Other languages
German (de)
English (en)
Other versions
WO2005090662B1 (fr
WO2005090662A3 (fr
Inventor
Freddy Marinus Johannes Tijink
Henricus Hubertus Wilhelmus Feijen
Ronald Stiefelhagen
Christian Vieth
Johannes Petrus Maria Dortmans
Maarten Oosterbroek
Original Assignee
Diolen Industrial Fibers B.V.
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
Application filed by Diolen Industrial Fibers B.V. filed Critical Diolen Industrial Fibers B.V.
Publication of WO2005090662A2 publication Critical patent/WO2005090662A2/fr
Publication of WO2005090662A3 publication Critical patent/WO2005090662A3/fr
Publication of WO2005090662B1 publication Critical patent/WO2005090662B1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • the present invention is directed to a method for varying the working capacity of a filament yarn.
  • the force-strain curve (KD curve) is plotted in a right-angled coordinate system, the force (F) being plotted upwards, the strain ( ⁇ L) plotted to the right. 1 shows an example of such a KD curve.
  • the tensile strength test is generally continued until the material to be tested breaks, the maximum force that occurs is called the breaking force, the associated change in length is called the elongation at break.
  • the tensile work of a material is the work in the tensile test until a certain tensile force is reached or its associated change in length in the physical sense (as the path integral of the force, in Fig. 1, i.e. the area OFDO) and can thus be derived from a KD curve be determined.
  • a certain tensile force is reached or its associated change in length in the physical sense (as the path integral of the force, in Fig. 1, i.e. the area OFDO) and can thus be derived from a KD curve be determined.
  • the pulling work that is required to achieve the Tear strength must be applied. This pulling work (area OF ma> cBO) is called work capacity (W) and is characteristic of the material to be tested.
  • the determination of the force-strain curve and the derivation of the physically relevant quantities is known to the person skilled in the art and is carried out in accordance with DIN 53857.
  • the working capacity (W) can be calculated from the force-strain curve using the following simplified formula:
  • a filament yarn that was in the range of aramid yarns in terms of its modulus, but rather had the properties of polyester yarns in terms of its elongation.
  • the initial load would initially be absorbed by the very high modulus of such a material, but would then be absorbed by the high elasticity inherent in this material as the load progressed.
  • BPC Ballistic Protection-Capability
  • V SO n the speed at which the energy progresses through the fiber.
  • module is also known per se to the person skilled in the art.
  • a tangent is applied to the very first part of the curve, where it is still practically linear, and elongated up to 100%.
  • the force associated with this stretch (100%) is called the module, also the initial module or Young's module.
  • KD curve linear part of the force-strain curve
  • a high initial modulus combined with a high elongation would therefore lead to a high work capacity.
  • the object of the present invention is therefore to provide such a method.
  • a filament yarn as described in the preamble of claim 1 or in the introductory paragraph, is initially combined with at least one further filament yarn, which differs from the first filament yarn in terms of its force-elongation behavior, then that the first is intermingled with the at least one further filament yarn, preferably at elevated temperature, and the two filament yarns are finally followed by tinning the first filament yarn with the at least one further filament yarn or by applying sizing agents and / or adhesives to the filament yarn or yarns a subsequent hardening of the sizing agent or the adhesives, or that after the intermingling a thermal aftertreatment is carried out, the filaments of the intermingled yarns being melted in whole or in part, or that after the Ve Whirl the first filament yarn with which at least one further filament yarn is twisted and then a thermal aftertreatment is carried out, the filaments of the intermingled yarns being melted in whole or in part.
  • filament yarn is to be understood as the term otherwise used for "practically endless thread-like structure made from finite fibers or from one or more practically endless filaments".
  • a combination of swirling with subsequent dimming or hardening of previously applied sizing agents and / or adhesives leads to a fusion of the materials in a simple but unexpected manner KD curves of the merged yarns, so that essentially a common KD diagram is created.
  • a particular advantage of the method according to the invention is that the force-elongation behavior of the yarns combined in this way is very uniform, that is to say the individual values have a significantly lower scatter. To a certain extent, this results in a homogenization of these values in comparison to a mere merging of the yarns without the further steps, swirling and twisting or loading with sizing agents and / or adhesives.
  • At least one of the filament yarns contains essentially only high modulus filaments. In this way you get a high module and thus often the desired high initial slope in the diagram.
  • the work capacity can be controlled in a targeted manner by adjusting the degree of diminution.
  • the degree of diminution Within a certain range it applies that as the number of twists increases, the fusion of the KD curves of the two or more twisted yarns increases more and more, so that from a certain degree of twisting a practically uniform diagram is obtained.
  • the threading of the filament yarns together is carried out between about 10 and about 400 turns. If sizing agents and / or adhesives are applied, it is preferred if one or more substances are selected from the group comprising polyesters (resins), polyurethanes, waxes, polyacrylates, epoxides and blocked isocyanates.
  • These substances are preferably cured in a separate step at elevated temperature.
  • the method can be carried out particularly inexpensively if the coating or loading with sizing agents and / or adhesives takes place following a swirling or weaving of the yarns, which is carried out at a higher temperature.
  • the method according to the invention is therefore particularly advantageously suitable as a component of a stretching or spin-stretching process, in the course of which it can be installed.
  • it is proposed to feed the further filament game (s) in the course of the relaxation step of the first filament game, which is necessary anyway in the stretching process, and then to swirl and twist them together.
  • the heat used in the course of the relaxation step has an advantageous effect on the further process steps.
  • the method according to the invention aims at a variation in the work capacity, it is generally preferred if this variation is aimed at increasing this work capacity.
  • the high modulus filaments used are preferably filaments which are produced from the group of filament-forming compounds comprising aromatic and partially aromatic polyesters, aramid, carbon, glass, rayon and polyolefin.
  • High-modulus filaments such as those that essentially consist of copper.
  • the term “high modulus filaments” is intended to mean filament games whose individual filaments have an initial modulus of at least 50 GPa, preferably of at least 80 GPa.
  • At least one of the filament yarns consists essentially only of thermoplastic filaments.
  • thermoplastic filaments are those filaments which are made from the group of filament-forming compounds comprising polyesters, polyamides, polyolefins, polyvinyls, polyacrylates and copolymers thereof.
  • connection between the polymers can be supported by carrying out a temperature treatment in a separate step, at least briefly, the temperature used being higher than the melting temperature of the lower-melting thermoplastic filament.
  • thermoplastic filaments are those filaments which consist essentially of polyethylene terephthalate.
  • thermoplastic filament yarn Because of the easily adjustable property profiles, combinations of a high modulus filament yarn with a thermoplastic filament yarn are preferred for the method according to the present invention.
  • the first filament yarn is a filament yarn which essentially consists of polyethylene terephthalate, which is combined with a further filament yarn which essentially Chen aramid is connected.
  • a special embodiment of the method consists if the first filament yarn is a filament yarn which consists essentially of polyethylene terephthalate, which is connected to a further filament yarn which essentially consists of rayon.
  • the first filament yarn is a filament yarn which essentially consists of polyethylene terephthalate, which is connected to a further filament yarn which essentially consists of polyethylene.
  • the first filament yarn is a filament yarn consisting essentially of polyethylene terephthalate, which is combined with another filament yarn consisting essentially of polyvinyl chloride.
  • the invention is also directed to such mixtures of two or more filament yarns which can be obtained by means of the method according to the present invention.
  • Such filament yarn blends are particularly well suited for use in antiballistic applications, but also as reinforcing filaments for tire cords, in conveyor belts or for the manufacture of sails.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un procédé de variation de la capacité de travail d'un fil continu. Ce procédé est caractérisé en ce que ce fil continu est réuni avec au moins un autre fil continu ayant un comportement traction-allongement différent de celui du premier fil continu ; puis le premier fil continu est tourbillonné avec le ou les autres fils continus, de préférence à une température élevée et enfin le premier fil continu est retordu avec le ou les autres fils continus. Ou bien ce procédé est caractérisé en ce qu'un retraitement thermique est effectué après le tourbillonnement, les filaments des fils tourbillonnés étant amenés à la fusion partielle ou totale. Ou encore ce procédé est caractérisé en ce qu'au terme du tourbillonnement, le premier fil continu est retordu avec le ou les autres fils continus puis un retraitement thermique est effectué, les filaments de fils tourbillonnés étant amenés à la fusion partielle ou totale.
PCT/EP2005/002670 2004-03-18 2005-03-12 Procede de melange de fils continus WO2005090662A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04006472 2004-03-18
EP04006472.7 2004-03-18

Publications (3)

Publication Number Publication Date
WO2005090662A2 true WO2005090662A2 (fr) 2005-09-29
WO2005090662A3 WO2005090662A3 (fr) 2005-11-24
WO2005090662B1 WO2005090662B1 (fr) 2006-01-12

Family

ID=34924512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/002670 WO2005090662A2 (fr) 2004-03-18 2005-03-12 Procede de melange de fils continus

Country Status (1)

Country Link
WO (1) WO2005090662A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156600A1 (fr) * 1984-03-15 1985-10-02 Celanese Corporation Mélanges de différentes fibres
US5293676A (en) * 1990-04-30 1994-03-15 Hoechst Aktiengesellschaft Intermingled multifilament yarn comprising high modulus monofilaments and production thereof
US6109016A (en) * 1996-04-09 2000-08-29 Hoechst Trevira Gmbh & Co. Kg Low-shrinkage hybrid yarns production thereof and use thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156600A1 (fr) * 1984-03-15 1985-10-02 Celanese Corporation Mélanges de différentes fibres
US5293676A (en) * 1990-04-30 1994-03-15 Hoechst Aktiengesellschaft Intermingled multifilament yarn comprising high modulus monofilaments and production thereof
US6109016A (en) * 1996-04-09 2000-08-29 Hoechst Trevira Gmbh & Co. Kg Low-shrinkage hybrid yarns production thereof and use thereof

Also Published As

Publication number Publication date
WO2005090662A3 (fr) 2005-11-24

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