EP0928840B1 - Verfahren und Vorrichtung zum Herstellen eines strangartigen Faserverbundes und Faserverbund in Strangform - Google Patents

Verfahren und Vorrichtung zum Herstellen eines strangartigen Faserverbundes und Faserverbund in Strangform Download PDF

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Publication number
EP0928840B1
EP0928840B1 EP98124638A EP98124638A EP0928840B1 EP 0928840 B1 EP0928840 B1 EP 0928840B1 EP 98124638 A EP98124638 A EP 98124638A EP 98124638 A EP98124638 A EP 98124638A EP 0928840 B1 EP0928840 B1 EP 0928840B1
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EP
European Patent Office
Prior art keywords
additional material
fibre composite
glass fibers
glass fibres
opening
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
EP98124638A
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German (de)
English (en)
French (fr)
Other versions
EP0928840A2 (de
EP0928840A3 (de
Inventor
Paul Hahmann
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.)
Johns Manville Europe GmbH
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Johns Manville Europe GmbH
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Publication date
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Publication of EP0928840A2 publication Critical patent/EP0928840A2/de
Publication of EP0928840A3 publication Critical patent/EP0928840A3/de
Application granted granted Critical
Publication of EP0928840B1 publication Critical patent/EP0928840B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D02G3/18—Yarns or threads made from mineral substances from glass or the like
    • D02G3/182—Yarns or threads made from mineral substances from glass or the like the glass being present only in part of the structure
    • D02G3/187—Yarns or threads made from mineral substances from glass or the like the glass being present only in part of the structure in the sheath
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • the invention relates to a method for producing a strand-like fiber composite of glass fibers and at least one additional material, in which a plurality of glass fibers are passed into a substantially rotationally symmetrical, at least in the circumferential direction to an insertion closed space in which they form a fiber vortex, the a front side of the room is withdrawn as a sliver, and the additional material is introduced into the room.
  • the invention relates to an apparatus for producing a strand-like fiber composite of glass fibers and at least one additional material with a spinning funnel having an elongated feed opening in its peripheral wall and a discharge opening on one end face, and with a trigger device.
  • the invention relates to a fiber composite in strand form of glass fibers and plastic, in which the plastic is formed as the soul of the fiber composite, which is wound by the glass fibers.
  • Glass fibers have proven themselves for many applications. When processed into sheet materials, such as woven or nonwoven fabrics, they often form a support for a coating. Examples include roofing membranes or floor coverings. To fulfill the carrier function certain requirements are placed on the fiber composites formed from glass fibers, in particular on the ductility and the tear strength. Similar requirements exist even if the fiber composites with glass fibers are present only in strand form, for example as roving or yarn.
  • fiber composites consisting only of glass fibers and fabrics made from them have very high dimensional stability under varying thermal conditions. They are also generally highly tear-resistant, but they can almost not be stretched. For this reason, it is known to combine glass fibers with plastic or synthetic fibers.
  • fabric carrier webs it is known, for example, to make them multi-layered, specifically a layer of glass fiber fabric and a layer of synthetic fiber fabric. Synthetic fibers are characterized by high elongation. However, they have only a small dimensional stability. Due to temperature fluctuations then expands the Sytheseliceur, and there are the smallest waves, since the glass fiber carrier web does not stretch and does not shrink. Moisture can penetrate into the waves, so that leaks may occur in roofing membranes, for example.
  • US Pat. No. 3,625,809 A shows a fiber composite in strand form of glass fibers and plastic, in which the plastic is formed as the core of the fiber composite, which is wound by glass fibers.
  • the glass fibers are continuous glass filaments.
  • EP 0 498 216 A1 shows a yarn which is formed from several layers.
  • a plastic core is surrounded by two plastic layers.
  • On these plastic layers comes a third layer of a wire, which is formed for example of stainless steel.
  • This layer is in turn wrapped by a fourth layer of polyester and a fifth layer of another polyester fiber.
  • Glass fibers can also be used as a core or cladding.
  • US 3 938 313 A shows a reinforcement for tires and a method for their manufacture.
  • a soul which may be formed of a plastic thread or of staple fibers or of continuous fibers is of continuous glass filaments wound helically. For this purpose, it is necessary that the donor organs for the glass fibers continuously rotate relative to the soul.
  • US Pat. No. 3,620,280 A shows another fiber composite for reinforcing certain articles, for example tires.
  • the fiber composite comprises a core of organic fibers on which a glass of continuously present fibers is wound on the outside.
  • the invention has for its object to be able to better control the structure of the fiber composite.
  • This object is achieved in a method of the type mentioned above in that the additional material is introduced from the front side, which is opposite to that from which the sliver is withdrawn.
  • the additional material is present as a strand.
  • This strand for example, a fiber composite of staple fibers or filaments öder a single monofilament, can then be selectively combined with the glass fibers, so as to obtain a fiber composite of the fluidized glass fibers and the strand-like filler.
  • the glass fibers then provide within the fiber composite for a certain dimensional stability, while the additional material can cause other properties, such as improved elasticity.
  • the additional material is guided substantially centrally through the room.
  • the additional material then facilitates the removal of the glass fibers from the room. But of particular advantage but then the properties of the resulting fiber composite.
  • the fiber composite has a core of the additional material which is surrounded by the glass fibers.
  • the soul or the core is protected by the glass fibers.
  • the core is made of a combustible material, then due to the cladding of the glass fibers, it is possible to achieve a better fire behavior in a carrier made by means of such a fiber composite, ie, such a material can withstand fire exposure longer.
  • the additive material is formed from a plurality of filaments. This improves the connection between the glass fibers and the filler material. During turbulence, the filaments of the additional material slightly separate from each other and thus allow the glass fibers can then be easily held.
  • the additional material is surface-treated. Such a surface treatment serves to increase the adhesiveness of the glass fibers to the filler material.
  • the additional material is textured.
  • the texturing itself is known to increase the volume of the additive material. In the present case, however, it is also advantageously possible to use it to improve the contactability of the glass fibers to the additional material.
  • the additional material may be provided with an adhesion promoter.
  • the glass fibers then adhere to the surface of the additive material.
  • the fiber composite can be heat treated in a preferred embodiment.
  • the glass fibers can fuse with the additional material.
  • a intimate merging is neither necessary nor desirable in many cases. It is usually sufficient if the glass fibers adhere to the additional material after the heat treatment.
  • the additional material is a plastic.
  • plastics as a filler is known per se.
  • it has hitherto been limited because the combination of the glass fibers with the plastic has produced a fire protection behavior which no longer met many requirements. If you now encase the plastic with the glass fibers, so to speak, then you can dramatically improve the fire protection and enjoy the rest of the benefits of a combination of glass fibers and plastics, namely a high dimensional stability at varying temperatures while being stretchable under mechanical stress.
  • Such a fiber composite is protected, for example, against flying sparks and radiant heat, so that the fiber composite can also be used for the production of roofing membranes, when initially a flat carrier material is made from the fiber composite.
  • the plastic used is polyester.
  • Polyester has proven itself for the combination due to its mechanical properties, in particular due to its ductility.
  • the object is achieved in a device of the type mentioned above in that at the exhaust port opposite end face a feeder is arranged for at least one additional material.
  • the structure of the fiber composite can be controlled with the feed device. Due to the arrangement of the feed device on the end face of the spinning funnel, the additional material can be fed in a relatively targeted manner so that the additional material is at a predetermined position in the cross section of the fiber composite.
  • the feeding device has a thread dispenser.
  • a thread dispenser issues a thread.
  • the additional material can then be present as a "thread" and later wound by the glass fibers.
  • the "thread” can be present in many different forms. It may be a monofilament, but it may also be filaments of multiple filaments or staple fibers. It may also be a relatively looser composite of individual fibers. Finally, one can also use a wire, such as a copper wire.
  • the feed device preferably has a swirling device.
  • the swirling device can ensure that these filaments are slightly detached from one another, so that later the retention of the glass fibers is facilitated.
  • a heat treatment device is arranged behind the outlet opening. So you can heat the fiber composite, for example, to melt a plastic core or soften. In this case, the glass fiber can adhere better.
  • the improvement of the structure is achieved in that the glass fibers surround the soul as a fiber vortex.
  • the plastic core or the plastic core are protected by the surrounding glass fibers, for example, from flying sparks.
  • the glass fibers also shield radiant heat so that one can perceive the benefits of combining fiberglass and plastic without having to put up with the most disadvantages.
  • the fiber composite obtained is a roving, i. a relatively large volume fiber composite. This facilitates later the production of surface materials, because this one can achieve a higher area coverage.
  • the plastic core is not completely covered here.
  • the design in which the glass fibers are arranged around the soul as a fiber vortex is sufficient to achieve the desired properties, in particular with regard to the fire protection behavior.
  • the plastic is formed as a filament or Stapelmaschinevorgarn or Stapelmaschinegarn.
  • the glass fibers that are added during swirling then have the opportunity to adhere to the surface of the plastic.
  • the weight ratio between glass fibers and plastic is in the range of 5:95 to 80:20. It is thus relatively flexible to adapt the fiber composite to different requirements.
  • the invention also relates to a fabric made of a fiber composite, which is manufactured and constructed as described above. Such a fabric has a relatively good fire protection behavior.
  • a coating for example bitumen, a roofing membrane.
  • This is dimensionally stable and remains tight for a long time even with changing environmental temperatures.
  • it has a sufficient fire protection performance to meet safety requirements.
  • the glass fibers are transported on the spinning drum 2 or an air layer adhering thereto up to a lifting device 4, for example a doctor blade.
  • the lifting device 4 lifts the crowd of glass fibers from the spinning drum 2, which rotates in the direction of an arrow 5 from.
  • the glass fibers 3 are then introduced into a spinning hopper 6, which has an insertion opening 7 arranged in its peripheral wall for this purpose. Otherwise, the spinning hopper 6 is closed in the circumferential direction. It thus encloses a space in which the glass fibers 3 are swirled and form a fiber vortex.
  • the spinning hopper 6 has at its end with a smaller diameter an end opening 8, which forms a vent opening. At the opposite end side, a feed opening 9 is arranged. In order to form the fiber vortex, the spinning hopper 6 can be blown from the feed opening 9 to the discharge opening 8 with air or another gas.
  • the device 1 and the feasible with her manufacturing method corresponds to the procedure described in DE 36 34 904 A1.
  • a feeder 10 is now arranged in front of the feed opening 9, which has a thread dispenser 11 which emits a plastic thread 12.
  • the plastic thread 12 is formed of a plurality of fibers which may be formed either as filaments or as staple fibers.
  • the plastic thread is a thread made of polyester. Instead, a monofilament or a wire may be used.
  • the plastic thread 12 passes through a turbulizer 13, in which it is textured.
  • the texturing leads to an increase in volume and at the same time opens the surface of the plastic bag 12, ie its fibers are loosened.
  • the plastic thread 12 is passed through the spinning cone 6. This can be done before the glass fibers 3 are introduced. Since the plastic thread 12 is guided substantially centrally through the spinning hopper 6, the glass fibers 3 are placed around it during swirling. So they form a fiber vortex of glass fibers, which has a core of the plastic thread 12.
  • the fiber composite 14 thus has a relatively large volume, so that its processing to a tissue offers, because you can achieve a relatively high coverage here.
  • the fiber composite 14 can be guided by a further swirling device 15 in which mechanical cohesion between the plastic thread 12 or its fibers and the glass fibers 3 is further improved. Finally, the fiber composite 14 can also be guided by a heater 16 in which it can be heated so that the plastic thread 12 softens. This also leads to an improved connection between the glass fibers 3 and the plastic thread 12. The fiber composite 14 is then wound up in a winding device 17.
  • plastic thread 12 with an adhesion promoter before it enters the spinning hopper 6 in order to improve the adhesion of the glass fibers 3 to the plastic strand 12.
  • a fabric made from the fiber composite 14 has a fire protection performance that is better than that of the conventionally used plastic-glass fiber combinations. It is particularly protected against flying sparks and radiant heat, so that it can be used preferably for roofing membranes in which the fabric is provided with a coating of bitumen or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Woven Fabrics (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Reinforced Plastic Materials (AREA)
  • Inorganic Fibers (AREA)
EP98124638A 1998-01-12 1998-12-23 Verfahren und Vorrichtung zum Herstellen eines strangartigen Faserverbundes und Faserverbund in Strangform Expired - Lifetime EP0928840B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19800725A DE19800725C2 (de) 1998-01-12 1998-01-12 Faserverbund in Strangform und Verfahren und Vorrichtung zu seiner Herstellung
DE19800725 1998-01-12

Publications (3)

Publication Number Publication Date
EP0928840A2 EP0928840A2 (de) 1999-07-14
EP0928840A3 EP0928840A3 (de) 2003-04-09
EP0928840B1 true EP0928840B1 (de) 2007-04-18

Family

ID=7854328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124638A Expired - Lifetime EP0928840B1 (de) 1998-01-12 1998-12-23 Verfahren und Vorrichtung zum Herstellen eines strangartigen Faserverbundes und Faserverbund in Strangform

Country Status (6)

Country Link
EP (1) EP0928840B1 (cs)
AT (1) ATE360110T1 (cs)
CZ (1) CZ299376B6 (cs)
DE (2) DE19800725C2 (cs)
DK (1) DK0928840T3 (cs)
ES (1) ES2281118T3 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915955C2 (de) 1999-04-09 2001-09-13 Schuller Gmbh Vorrichtung und Verfahren zum Herstellen eines strangartigen Faserverbundes aus Glasfasern
DE19919297C2 (de) * 1999-04-28 2002-01-24 Schuller Gmbh Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern
FR2817548B1 (fr) * 2000-12-05 2003-01-10 Saint Gobain Vetrotex Procede et dispositif de fabrication d'une meche comportant des filaments de verre

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675267C (de) * 1937-08-25 1939-05-04 Actien Ges Der Gerresheimer Gl Verfahren zum Erzeugen eines Vorgarns oder Garns aus Glasfasern o. dgl.
DE825456C (de) * 1946-01-30 1951-12-20 Werner Schuller Verfahren und Vorrichtung fuer die Herstellung eines Vorgarnes aus Glas
US3938313A (en) * 1967-08-29 1976-02-17 Owens-Corning Fiberglas Corporation Reinforcement for tires and method of making same
US3620280A (en) * 1968-04-16 1971-11-16 Owens Corning Fiberglass Corp Multifilament reinforcement yarns and articles containing same
US3625809A (en) * 1970-02-24 1971-12-07 Owens Corning Fiberglass Corp Filament blend products
DE3634904A1 (de) * 1986-10-14 1988-04-28 Schuller Gmbh Glaswerk Verfahren zur herstellung eines mischfaserbandes aus glasfasern und fasern oder faeden anderen materials
DE69205848T2 (de) * 1991-02-06 1996-07-04 Bettcher Industries Verbessertes Garn und Schutzkleidung.
DE19513506A1 (de) * 1995-04-10 1996-10-17 Hoechst Ag Hybridgarn und daraus hergestelltes permanent verformbares Textilmaterial, seine Herstellung und Verwendung

Also Published As

Publication number Publication date
DE19800725A1 (de) 1999-07-15
ATE360110T1 (de) 2007-05-15
CZ9900060A3 (cs) 2000-11-15
CZ299376B6 (cs) 2008-07-09
EP0928840A2 (de) 1999-07-14
DK0928840T3 (da) 2007-09-03
DE59813974D1 (de) 2007-05-31
DE19800725C2 (de) 2001-06-13
ES2281118T3 (es) 2007-09-16
EP0928840A3 (de) 2003-04-09

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