WO2002000973A1 - Synthetic fibre, nozzle and method for manufacturing the same and thereof - Google Patents

Synthetic fibre, nozzle and method for manufacturing the same and thereof Download PDF

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Publication number
WO2002000973A1
WO2002000973A1 PCT/NL2001/000490 NL0100490W WO0200973A1 WO 2002000973 A1 WO2002000973 A1 WO 2002000973A1 NL 0100490 W NL0100490 W NL 0100490W WO 0200973 A1 WO0200973 A1 WO 0200973A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibre
chamber
core
walls
nozzle
Prior art date
Application number
PCT/NL2001/000490
Other languages
French (fr)
Other versions
WO2002000973B1 (en
Inventor
Gerardus Martinus Antonius Joris
Original Assignee
R-R & D Centre N.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 R-R & D Centre N.V. filed Critical R-R & D Centre N.V.
Priority to AU2001269622A priority Critical patent/AU2001269622A1/en
Publication of WO2002000973A1 publication Critical patent/WO2002000973A1/en
Publication of WO2002000973B1 publication Critical patent/WO2002000973B1/en

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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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins

Definitions

  • the present invention relates to a fibre comprising a profile of at least one synthetic material.
  • the invention further relates to a woven fabric or a mat comprising such a synthetic fibre.
  • the invention relates to a nozzle for manufacturing such 0 synthetic fibres.
  • the invention also relates to a method for manufacturing such synthetic fibres, as well as the use of the synthetic fibres.
  • Fibres the use of fibres and the manufacture of fibres are generally known. Fibres are known with a 5 round, trilobal or delta profile.
  • Synthetic fibres have sound-damping properties which are not optimal.
  • Glass fibre, rock wool and natural fibres have negative properties, such as odour, fogging, or inhaling of fine hard fibres (glass fibres) .
  • the invention now has for its object to provide a fibre of the type specified in the preamble which combines the positive properties of a synthetic fibre with sound-damping properties.
  • the surface area of the cross-section of a fibre is on the one hand hereby enlarged, wherein more sound energy is absorbed, and in addition chambers are formed which result in a damping of the sound.
  • the profile of the fibre according to the invention comprises at least one chamber. Each chamber has at least one opening.
  • One embodiment according to the invention is a fibre with a cross-section corresponding with the letter ' C or ' U' . Such a C-shaped or U-shaped profile 5 comprises one chamber with one opening.
  • the measure of claim 2 is preferably applied.
  • the peripheral edge of the chamber i.e. the length of the inner wall of a chamber, comprises more than 80% of the peripheral edge of the chamber if the opening were closed, if the outer ends of the chamber opening were mutually connected.
  • the opening comprises less than 10% of the peripheral edge of the chamber, preferably less than 5% of the peripheral edge of the chamber.
  • the core is a central, not necessarily middle, part of the fibre. From the core, which has a round or square or similar form, it is favourable to arrange at least two protruding walls.
  • the lateral walls are provided with at least one transverse wall .
  • This transverse wall is situated on the end of the lateral wall or protruding from a part of the lateral wall .
  • Two lateral walls and at least one transverse wall form a chamber with at least one opening.
  • a core according to the invention of a fibre comprises 2, 3, 4, 5, 6 or more protruding lateral walls.
  • Each of such lateral walls comprises 1, 2, 3 or more transverse walls, which protrude from the lateral wall such that the transverse wall with another transverse wall or a lateral wall define a chamber.
  • the transverse wall protrudes freely, and therefore ends with the opening of a chamber.
  • a preferred embodiment of the fibre according to the invention defines a profile with a core which comprises four lateral walls protruding in substantially uniform distribution around the core.
  • the lateral walls therefore form two intersecting lines, wherein the intersection of the lines is the core.
  • Each lateral wall comprises on the outer end two transverse walls, which preferably protrude perpendicularly to the lateral walls.
  • a fibre is thus formed with a profile comprising four rectangular chambers, each having one opening. The openings are situated at the corner points of the rectangular profile of the fibre. The opening is formed between two protruding transverse walls of mutually adjacent lateral walls .
  • a second preferred embodiment according to the invention comprises a hollow C-shaped core.
  • This core already forms per se a chamber with an opening.
  • Three lateral walls protrude from the core in substantially uniform distribution around the core.
  • On the outer ends of the lateral walls protrude two curved transverse walls.
  • the curvature of the transverse wall corresponds concentrically with the curvature of the C-shaped hollow core.
  • the transverse walls protruding toward each other of mutually adjacent lateral walls form an opening of a chamber.
  • three chambers are formed adjacently of the hollow C-shaped core chamber.
  • the peripheral edge of one of three chambers comprises a part of the C-shaped core, two lateral walls and two transverse walls.
  • the fibre material preferably comprises a polyolefin such as polypropylene, polyethylene, polyamide, polyacryl, as well as polyester.
  • the fibre comprise material which has a sound-absorbing effect.
  • the sound-damping properties are thus further improved.
  • a composite with cotton fibres is preferably employed.
  • the sound-damping effect of the fibre according to the invention is thus combined with the good acoustic properties of the cotton fibre.
  • the invention likewise relates to and provides a woven fabric.
  • the woven fabric is manufactured in usual manner and comprises a fibre according to the invention.
  • the invention relates to and provides a mat.
  • the mat is manufactured as a non-woven and comprises at least the fibre according to the invention.
  • the invention also relates to and provides a nozzle for manufacturing a fibre according to the invention.
  • the nozzle is a plate with recesses and is characterized by a recess which defines at least one chamber.
  • a nozzle is suitable for the extrusion of a fibre, wherein a fibre according to the invention is formed with one chamber and an opening.
  • the connection between the chamber and the plate provides the opening of the chamber of the fibre according to the invention during extrusion.
  • the nozzle preferably comprises a core recess from which at least two side recesses protrude.
  • the side recess comprises at least one transverse recess .
  • the side recess and the transverse recess define at least two chambers with openings .
  • the invention likewise relates to and provides a spinning plate for manufacturing fibres .
  • the spinning plate comprises at least two nozzles which are employed systematically in a spinning plate in usual manner.
  • the invention also relates to and provides a method for manufacturing a fibre by means of an extrusion, wherein a plastic obtains the fibre profile according to the invention by means of a nozzle or a spinning plate.
  • Figure 1 shows an extrusion device for fibres.
  • Figure 2 shows a nozzle and a fibre according to a first embodiment.
  • Figure 3 shows a nozzle and a fibre according to a second embodiment.
  • Figure 4 shows a nozzle and a fibre according to a third embodiment .
  • Figure 5 shows a graph with the sound absorption properties of the fibre according to the third embodiment .
  • Figure 1 shows schematically an extrusion device for fibres .
  • Extrusion device 1 comprises a casing 2 with a drive for extruding plastic added through opening 3 to a fibre in usual manner.
  • the fibre acquires a profile corresponding with the recesses of nozzle 4 placed on extrusion nozzle 5.
  • nozzle 4 is replaced by a spinning plate with a plurality of recesses .
  • transverse walls 58 and 59 are provided on the end with transverse walls 58 and 59.
  • the outer ends of the transverse walls protrude toward each other and form openings 60 of chambers 61.
  • Chambers 61 have a rectangular form. Openings 60 are situated at the corner points of profile 52.
  • Fibre 62 which is obtained by extrusion of a plastic using nozzle 51, defines a profile with four chambers 63 and openings 64.
  • Chambers 63 are formed by four lateral walls 66-69 protruding from a core 65.
  • Each lateral wall 66-69 has two transverse walls 70 and 71.
  • the peripheral edge of a chamber 63 is formed by transverse walls 70 and 71 and two lateral walls 66-69.
  • Core 65 is not thicker than lateral walls 66-69.
  • Core 65 is only the point of intersection of lateral walls 66-69.
  • Figure 5 shows a graph with the absorption coefficient plotted against the frequency of sound.
  • a mat is manufactured in typical manner from: - the fibre according to the third embodiment; - the cotton fibre; and - a polypropylene fibre with a round cross-section.
  • Graph 81 shows the absorption coefficient of a mat manufactured from the fibre according to the third embodiment according to the invention.
  • Graph 82 shows the absorption coefficient of a mat manufactured from cotton fibres,
  • graph 83 shows the sound absorption of a mat manufactured from fibres with a round cross-section.
  • the mat manufactured from fibres according to the invention has an improved sound absorption at all frequencies.
  • Each of the embodiments of the fibre can be manufactured from a plastic or a composite of a number of materials.
  • the retention value of such a fibre is 95%, while the conventional value lies at about 80%.
  • the specific surface area of the fibre according to the third embodiment according to the invention is 1.8 times larger relative to the round fibre.
  • the ramification factor 0 3 /S is 2.8 times greater relative to the round fibre.
  • the mat according to the invention embodied with fibres according to the third embodiment has particular properties in respect of the absorption of media. Such a non-woven mat absorbs 98% of the oil in a 75-25 water/oil mixture. The water is not absorbed into the non-woven.
  • Applications for the fibre, a mat or a woven fabric according to the invention are:
  • the manufactured fibre has a D-Tex lying between 10 and 2500 D-Tex (G/lOKm) , preferably between 10 and 1000 D-Tex, in particular 100 and 500.
  • the specific surface area lies between 1 and 10 M 2 /Kg, preferably between 1 and 5 M 2 /Kg, in particular between 2 and 3 2 /Kg.
  • the size of the fibre core a round section of between 5 and 1000 ⁇ m, preferably 10 and 250 ⁇ m, in particular 20 and 150 ⁇ m; square between 5 and 1000 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 20 and 150 ⁇ m; rectangular varying between 5 and 1000 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 20 and 150 ⁇ m.
  • the hollow embodiment of the core of the fibre has an outer diameter of between 7 and 500 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 20 and 150 ⁇ m; the inner diameter of the hollow chamber is between 2 and 495 ⁇ m, preferably between 2 and 245 ⁇ m, in particular between 15 and 145 ⁇ m.
  • the number of chambers which are defined lies between 1 and 12, preferably between 2 and 6, in particular 3 or 4.
  • the number of lateral walls from the core amounts to between 2 and 12, preferably between 2 and 6, in particular 3 or 4.
  • the length of the lateral walls from the core is between 10 and 1000 ⁇ m, preferably between 20 and 100 ⁇ m, in particular 20 and 50 ⁇ m.
  • the moulded lateral walls on the core form an angle lying between 10° and 170° and can vary per lateral wall in one fibre, preferably between 45° and 135°, in particular 80° and 100°.
  • the moulded transverse walls on lateral walls form an angle lying between 10° and 170° and can vary per transverse wall in one fibre, preferably between 45° and 135°, in particular 80° and 100°.
  • the thickness of the lateral walls is of a magnitude lying between 5 and 500 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 10 and 50 ⁇ m.
  • the thickness of the transverse walls is of a magnitude lying between 5 and 500 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 10 and 50 ⁇ m.
  • the opening between the transverse walls is of a magnitude lying between 5 and 500 ⁇ m, preferably between 10 and 250 ⁇ m, in particular between 10 and 50 ⁇ m.
  • the transverse walls can assume any linear form between the end points, both straight and a curve varying between 0° and 180°.
  • the lateral walls can assume any linear form between the end points, both straight and a curve varying between 0° and 180°.
  • the transverse walls can be placed symmetrically or asymmetrically on the chamber walls with between 5 and 500 ⁇ m of asymmetry, preferably 10 and 200 ⁇ m, in particular 10 and 50 ⁇ m.
  • the surface area of the chamber determines the specific properties of the fibre and has a surface area between 0.5 and 6 0 3 /S, wherein O is the peripheral profile and S the area cross-section, preferably between 1 and 4.5.
  • the fibre cross-section can eventually acquire a round open structure with a diameter cross-section between 5 and 1000 ⁇ m, preferably between 10 and 500 ⁇ m, in particular between 10 and 100 ⁇ m.
  • the rigidity of the fibre lies between 0.4 and 1, preferably between 0.5 and 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The present invention relates to a fibre comprising a profile of at least one synthetic material. The invention further relates to a woven fabric or a mat comprising such a synthetic fibre. In addition, the invention relates to a nozzle for manufacturing such synthetic fibres. The invention also relates to a method for manufacturing such synthetic fibres, as well as the use of the synthetic fibres. The profile of the fibre according to the invention comprises at least one chamber. The surface area of the cross-section of a fibre is on the one hand hereby enlarged, wherein more sound energy is absorbed, and in addition chambers are formed which result in a damping of the sound. The nozzle is a plate with recesses and is characterized by a recess which defines at least one chamber.

Description

SYNTHETIC FIBRE, NOZZLE AND METHOD FOR MANUFACTURING THE SAME AND THEREOF
5 The present invention relates to a fibre comprising a profile of at least one synthetic material. The invention further relates to a woven fabric or a mat comprising such a synthetic fibre. In addition, the invention relates to a nozzle for manufacturing such 0 synthetic fibres. The invention also relates to a method for manufacturing such synthetic fibres, as well as the use of the synthetic fibres.
Fibres, the use of fibres and the manufacture of fibres are generally known. Fibres are known with a 5 round, trilobal or delta profile.
Synthetic fibres have sound-damping properties which are not optimal. Glass fibre, rock wool and natural fibres have negative properties, such as odour, fogging, or inhaling of fine hard fibres (glass fibres) . 0 The invention now has for its object to provide a fibre of the type specified in the preamble which combines the positive properties of a synthetic fibre with sound-damping properties.
This object is achieved with the fibre according to 5 the invention as characterized in claim 1. The surface area of the cross-section of a fibre is on the one hand hereby enlarged, wherein more sound energy is absorbed, and in addition chambers are formed which result in a damping of the sound. 0 The profile of the fibre according to the invention comprises at least one chamber. Each chamber has at least one opening. One embodiment according to the invention is a fibre with a cross-section corresponding with the letter ' C or ' U' . Such a C-shaped or U-shaped profile 5 comprises one chamber with one opening.
The measure of claim 2 is preferably applied. The peripheral edge of the chamber, i.e. the length of the inner wall of a chamber, comprises more than 80% of the peripheral edge of the chamber if the opening were closed, if the outer ends of the chamber opening were mutually connected. According to a further preferred embodiment the opening comprises less than 10% of the peripheral edge of the chamber, preferably less than 5% of the peripheral edge of the chamber. Such measures have a positive effect on the sound-damping action of a fibre.
It is favourable to characterize the cross-section of a fibre according to the invention with a core. The core is a central, not necessarily middle, part of the fibre. From the core, which has a round or square or similar form, it is favourable to arrange at least two protruding walls.
The lateral walls are provided with at least one transverse wall . This transverse wall is situated on the end of the lateral wall or protruding from a part of the lateral wall . Two lateral walls and at least one transverse wall form a chamber with at least one opening. A core according to the invention of a fibre comprises 2, 3, 4, 5, 6 or more protruding lateral walls. Each of such lateral walls comprises 1, 2, 3 or more transverse walls, which protrude from the lateral wall such that the transverse wall with another transverse wall or a lateral wall define a chamber. The transverse wall protrudes freely, and therefore ends with the opening of a chamber.
A preferred embodiment of the fibre according to the invention defines a profile with a core which comprises four lateral walls protruding in substantially uniform distribution around the core. The lateral walls therefore form two intersecting lines, wherein the intersection of the lines is the core. Each lateral wall comprises on the outer end two transverse walls, which preferably protrude perpendicularly to the lateral walls. A fibre is thus formed with a profile comprising four rectangular chambers, each having one opening. The openings are situated at the corner points of the rectangular profile of the fibre. The opening is formed between two protruding transverse walls of mutually adjacent lateral walls .
A second preferred embodiment according to the invention comprises a hollow C-shaped core. This core already forms per se a chamber with an opening. Three lateral walls protrude from the core in substantially uniform distribution around the core. On the outer ends of the lateral walls protrude two curved transverse walls. The curvature of the transverse wall corresponds concentrically with the curvature of the C-shaped hollow core. The transverse walls protruding toward each other of mutually adjacent lateral walls form an opening of a chamber. According to this preferred embodiment three chambers are formed adjacently of the hollow C-shaped core chamber. The peripheral edge of one of three chambers comprises a part of the C-shaped core, two lateral walls and two transverse walls.
The fibre material preferably comprises a polyolefin such as polypropylene, polyethylene, polyamide, polyacryl, as well as polyester.
It is favourable to have the fibre comprise material which has a sound-absorbing effect. The sound-damping properties are thus further improved.
A composite with cotton fibres is preferably employed. The sound-damping effect of the fibre according to the invention is thus combined with the good acoustic properties of the cotton fibre.
The invention likewise relates to and provides a woven fabric. The woven fabric is manufactured in usual manner and comprises a fibre according to the invention.
In addition, the invention relates to and provides a mat. The mat is manufactured as a non-woven and comprises at least the fibre according to the invention.
The invention also relates to and provides a nozzle for manufacturing a fibre according to the invention. The nozzle is a plate with recesses and is characterized by a recess which defines at least one chamber. Such a nozzle is suitable for the extrusion of a fibre, wherein a fibre according to the invention is formed with one chamber and an opening. The connection between the chamber and the plate provides the opening of the chamber of the fibre according to the invention during extrusion. The nozzle preferably comprises a core recess from which at least two side recesses protrude. The side recess comprises at least one transverse recess . The side recess and the transverse recess define at least two chambers with openings . The invention likewise relates to and provides a spinning plate for manufacturing fibres . The spinning plate comprises at least two nozzles which are employed systematically in a spinning plate in usual manner.
The invention also relates to and provides a method for manufacturing a fibre by means of an extrusion, wherein a plastic obtains the fibre profile according to the invention by means of a nozzle or a spinning plate.
The invention is further elucidated on the basis of the accompanying embodiments and figures in which several preferred embodiments of the invention are shown.
Figure 1 shows an extrusion device for fibres.
Figure 2 shows a nozzle and a fibre according to a first embodiment.
Figure 3 shows a nozzle and a fibre according to a second embodiment.
Figure 4 shows a nozzle and a fibre according to a third embodiment .
Figure 5 shows a graph with the sound absorption properties of the fibre according to the third embodiment .
Figure 1 shows schematically an extrusion device for fibres . Extrusion device 1 comprises a casing 2 with a drive for extruding plastic added through opening 3 to a fibre in usual manner. The fibre acquires a profile corresponding with the recesses of nozzle 4 placed on extrusion nozzle 5. In another embodiment nozzle 4 is replaced by a spinning plate with a plurality of recesses . LO to M to H H
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provided on the end with transverse walls 58 and 59. The outer ends of the transverse walls protrude toward each other and form openings 60 of chambers 61. Chambers 61 have a rectangular form. Openings 60 are situated at the corner points of profile 52.
Fibre 62, which is obtained by extrusion of a plastic using nozzle 51, defines a profile with four chambers 63 and openings 64. Chambers 63 are formed by four lateral walls 66-69 protruding from a core 65. Each lateral wall 66-69 has two transverse walls 70 and 71. The peripheral edge of a chamber 63 is formed by transverse walls 70 and 71 and two lateral walls 66-69. Core 65 is not thicker than lateral walls 66-69. Core 65 is only the point of intersection of lateral walls 66-69. Figure 5 shows a graph with the absorption coefficient plotted against the frequency of sound. A mat is manufactured in typical manner from: - the fibre according to the third embodiment; - the cotton fibre; and - a polypropylene fibre with a round cross-section. Graph 81 shows the absorption coefficient of a mat manufactured from the fibre according to the third embodiment according to the invention. Graph 82 shows the absorption coefficient of a mat manufactured from cotton fibres, graph 83 shows the sound absorption of a mat manufactured from fibres with a round cross-section. The mat manufactured from fibres according to the invention has an improved sound absorption at all frequencies.
Each of the embodiments of the fibre can be manufactured from a plastic or a composite of a number of materials.
Other particular properties of the fibre according to the invention are the retention value of such a fibre. The retention value of the fibre according to the invention is 95%, while the conventional value lies at about 80%.
The specific surface area of the fibre according to the third embodiment according to the invention is 1.8 times larger relative to the round fibre. The ramification factor 03/S is 2.8 times greater relative to the round fibre. The thermal conductivity of a round fibre with reference value λ =1 is λ =0.9 for the fibre according to the third embodiment of the invention. The mat according to the invention embodied with fibres according to the third embodiment has particular properties in respect of the absorption of media. Such a non-woven mat absorbs 98% of the oil in a 75-25 water/oil mixture. The water is not absorbed into the non-woven. Applications for the fibre, a mat or a woven fabric according to the invention, are:
- clothing
- outer and underclothing (underwear)
- sports and leisure clothing - socks, stockings
- technical and industrial (textile)
- filter systems (water and oil contaminants, cigarette filters, aerosols, gas filters)
- composites (for instance, strengthening material in bumpers, cement...)
- artificial turf
- cleaning cloths for lenses, photocopying machines, household, industry)
- bags - geo-textile and agro-textile
- non-wovens
- cords, ropes
- bags, packaging material
- household textiles - rugs, carpets
- wall covering (fabric wallpaper)
- furniture fabrics
- curtain fabrics
- mattress fabrics - automobile sector (sound-damping)
- medical and hygienic textile
- diapers, pampers, incontinence articles
- surgical cloths - gowns - absorption of media
The properties of the fibre, the fibre material, and the nozzle are specified hereinbelow:
The manufactured fibre has a D-Tex lying between 10 and 2500 D-Tex (G/lOKm) , preferably between 10 and 1000 D-Tex, in particular 100 and 500.
The specific surface area lies between 1 and 10 M2/Kg, preferably between 1 and 5 M2/Kg, in particular between 2 and 3 2/Kg.
The size of the fibre core; a round section of between 5 and 1000 μm, preferably 10 and 250 μm, in particular 20 and 150 μm; square between 5 and 1000 μm, preferably between 10 and 250 μm, in particular between 20 and 150 μm; rectangular varying between 5 and 1000 μm, preferably between 10 and 250 μm, in particular between 20 and 150 μm.
The hollow embodiment of the core of the fibre has an outer diameter of between 7 and 500 μm, preferably between 10 and 250 μm, in particular between 20 and 150 μm; the inner diameter of the hollow chamber is between 2 and 495 μm, preferably between 2 and 245 μm, in particular between 15 and 145 μm. The number of chambers which are defined lies between 1 and 12, preferably between 2 and 6, in particular 3 or 4.
The number of lateral walls from the core amounts to between 2 and 12, preferably between 2 and 6, in particular 3 or 4.
The length of the lateral walls from the core is between 10 and 1000 μm, preferably between 20 and 100 μm, in particular 20 and 50 μm.
The moulded lateral walls on the core form an angle lying between 10° and 170° and can vary per lateral wall in one fibre, preferably between 45° and 135°, in particular 80° and 100°. The moulded transverse walls on lateral walls form an angle lying between 10° and 170° and can vary per transverse wall in one fibre, preferably between 45° and 135°, in particular 80° and 100°. The thickness of the lateral walls is of a magnitude lying between 5 and 500 μm, preferably between 10 and 250 μm, in particular between 10 and 50 μm.
The thickness of the transverse walls is of a magnitude lying between 5 and 500 μm, preferably between 10 and 250 μm, in particular between 10 and 50 μm.
The opening between the transverse walls is of a magnitude lying between 5 and 500 μm, preferably between 10 and 250 μm, in particular between 10 and 50 μm.
The transverse walls can assume any linear form between the end points, both straight and a curve varying between 0° and 180°.
The lateral walls can assume any linear form between the end points, both straight and a curve varying between 0° and 180°. The transverse walls can be placed symmetrically or asymmetrically on the chamber walls with between 5 and 500 μm of asymmetry, preferably 10 and 200 μm, in particular 10 and 50 μm.
Owing to the chosen variables in length and thickness of the walls of the chamber and the form of the walls the surface area of the chamber determines the specific properties of the fibre and has a surface area between 0.5 and 6 03/S, wherein O is the peripheral profile and S the area cross-section, preferably between 1 and 4.5.
Owing to the chosen form of the transverse walls the fibre cross-section can eventually acquire a round open structure with a diameter cross-section between 5 and 1000 μm, preferably between 10 and 500 μm, in particular between 10 and 100 μm.
The rigidity of the fibre lies between 0.4 and 1, preferably between 0.5 and 1.

Claims

1. Fibre comprising a profile of at least one synthetic material, characterized in that the profile defines at least one chamber with at least one opening.
2. Fibre as claimed in claim 1, characterized in that the chamber is practically closed and the opening comprises less than 20% of the peripheral edge of the chamber.
3. Fibre as claimed in claim 1, characterized in that the fibre comprises a core, at least two lateral walls protruding from the core and provided with at least one transverse wall, wherein the walls are arranged such that at least two chambers with openings are defined.
4. Fibre as claimed in claim 3, characterized in that the chamber is practically closed and the opening comprises less than 10% of the peripheral edge of the chamber .
5. Fibre as claimed in any of the foregoing claims, characterized in that the profile comprises a core with four lateral walls distributed substantially uniformly around the core, wherein a lateral wall comprises on the outer end two transverse walls protruding substantially perpendicularly to the wall such that four chambers with openings are formed, wherein the peripheral edge of one chamber comprises two lateral walls and two transverse walls .
6. Fibre as claimed in any of the foregoing claims, characterized in that the profile comprises a C-shaped hollow core which defines a chamber with an opening, having connected to the core three lateral walls protruding in substantially uniform distribution around the core, wherein a lateral wall comprises on the outer end two curved transverse walls protruding substantially perpendicularly to the wall such that three chambers with openings are formed, wherein the peripheral edge of one chamber comprises two lateral walls, two transverse walls and a part of the C-shaped hollow core.
7. Fibre as claimed in any of the foregoing claims, characterized in that the fibre comprises a polyolefin.
8. Fibre as claimed in any of the foregoing claims, characterized in that the fibre also comprises a material with sound-absorbing effect.
9. Woven fabric, characterized in that the woven fabric is a fibre as claimed in any of the claims 1-8.
10. Mat, characterized in that the mat is manufactured as a non-woven from a fibre as claimed in any of the claims 1-8.
11. Nozzle for extruded manufacture of a fibre, comprising a plate with recesses, characterized in that the recess defines at least one chamber with opening.
12. Nozzle as claimed in claim 11, characterized in that the recess defines a core recess with at least two protruding side recesses, wherein a side recess comprises at least one transverse recess such that at least two chambers with openings are defined.
13. Spinning plate for manufacturing fibres, characterized in that the spinning plate is employed with at least two nozzles as claimed in claim 10 or 11.
14. Method for manufacturing a fibre, wherein a plastic is extruded with a nozzle or a spinning plate as claimed in claims 11-13.
15. Composite material comprising a binder and a strengthening material, characterized in that the strengthening material comprises a fibre as claimed in any of the claims 1-8.
PCT/NL2001/000490 2000-06-29 2001-06-29 Synthetic fibre, nozzle and method for manufacturing the same and thereof WO2002000973A1 (en)

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Cited By (8)

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WO2006010401A1 (en) * 2004-07-23 2006-02-02 Wabco Gmbh & Co. Ohg Fibre for an acoustic insulating material, especially for sound dampers in compressed air devices
NL1028224C2 (en) * 2005-02-08 2006-08-09 Ten Cate Thiolon Bv Plastic fiber of the monofilament type for use in an artificial grass sports field as well as an artificial grass mat suitable for sports fields provided with such plastic fibers.
US8006801B2 (en) 2004-07-24 2011-08-30 Wabco Gmbh Noise damper for a compressed air device
US8215448B2 (en) 2008-06-20 2012-07-10 Wabco Gmbh Sound damper for vehicle compressed air systems
US8557363B2 (en) 2005-02-28 2013-10-15 Ten Cate Thiolon B.V. Artificial grass turf system
US8568852B2 (en) 2004-06-17 2013-10-29 Ten Cate Thiolon B.V. Artificial grass turf and infill for sports fields
US8986807B2 (en) 2011-04-18 2015-03-24 Tarkett Inc. Fire resistant artificial turf
US9469921B2 (en) 2009-01-14 2016-10-18 Ten Cate Thiolon B.V. Artificial grass fibre and artificial lawn comprising such a fibre

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568852B2 (en) 2004-06-17 2013-10-29 Ten Cate Thiolon B.V. Artificial grass turf and infill for sports fields
WO2006010401A1 (en) * 2004-07-23 2006-02-02 Wabco Gmbh & Co. Ohg Fibre for an acoustic insulating material, especially for sound dampers in compressed air devices
DE102004036030A1 (en) * 2004-07-23 2006-02-16 Wabco Gmbh & Co.Ohg Thread for acoustic insulation material, in particular for silencers in compressed air devices
US8006801B2 (en) 2004-07-24 2011-08-30 Wabco Gmbh Noise damper for a compressed air device
NL1028224C2 (en) * 2005-02-08 2006-08-09 Ten Cate Thiolon Bv Plastic fiber of the monofilament type for use in an artificial grass sports field as well as an artificial grass mat suitable for sports fields provided with such plastic fibers.
WO2006085751A1 (en) * 2005-02-08 2006-08-17 Ten Cate Thiolon B.V. Artificial fibre for use in an artificial grass sport field
US8530026B2 (en) 2005-02-08 2013-09-10 Ten Cate Thiolon B.V. Artificial fiber for use in an artificial grass sports field
EP2796618A1 (en) * 2005-02-08 2014-10-29 Ten Cate Thiolon B.V. Monofilament artificial grass fibre
US8557363B2 (en) 2005-02-28 2013-10-15 Ten Cate Thiolon B.V. Artificial grass turf system
US8215448B2 (en) 2008-06-20 2012-07-10 Wabco Gmbh Sound damper for vehicle compressed air systems
US9469921B2 (en) 2009-01-14 2016-10-18 Ten Cate Thiolon B.V. Artificial grass fibre and artificial lawn comprising such a fibre
US8986807B2 (en) 2011-04-18 2015-03-24 Tarkett Inc. Fire resistant artificial turf

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