EP0083543B1 - Verfahren und Vorrichtung zur Herstellung von Faservliesen - Google Patents

Verfahren und Vorrichtung zur Herstellung von Faservliesen Download PDF

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Publication number
EP0083543B1
EP0083543B1 EP82402386A EP82402386A EP0083543B1 EP 0083543 B1 EP0083543 B1 EP 0083543B1 EP 82402386 A EP82402386 A EP 82402386A EP 82402386 A EP82402386 A EP 82402386A EP 0083543 B1 EP0083543 B1 EP 0083543B1
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EP
European Patent Office
Prior art keywords
screens
gases
screen
fibers
induced
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Expired
Application number
EP82402386A
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English (en)
French (fr)
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EP0083543A1 (de
Inventor
Jean A. Battigelli
Guy Berthier
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Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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Application filed by Saint Gobain Isover SA France filed Critical Saint Gobain Isover SA France
Priority to AT82402386T priority Critical patent/ATE18781T1/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the invention relates to the production of a veil of fibers by drawing thermoplastic materials using gas streams.
  • the material in the molten state passes through a die.
  • the threads delivered by the die are entrained and drawn between two substantially parallel gas streams. These currents are directed in the direction of flow of the threads on either side thereof.
  • the emission of gas streams and the drawing of the nets are carried out in a confined space mainly delimited by two walls forming a sort of channel.
  • the fibers formed, conveyed by the gas streams, are directed to a receiving member constituted by a conveyor belt permeable to gases.
  • the fibers are retained on the carpet. The movement of the latter leads to the formation of a continuous veil of fibers of small thickness.
  • the main patent notably presents systems for adjusting the spacing of the walls confining the gas streams in the drawing phase. To a certain extent, differences in the spacing of the walls of what is also called the "skirt make it possible to modulate the flow of the drawing gases and consequently that of the fibers formed. These modifications made to the fiberizing assembly are reproduced up to the receiving member.
  • the addition to the patent relates to the spreading of the flow of fibers on very wide conveyor belts.
  • the gas flow leaving the drawing member passes through a device called a shaper. Between these two devices a relatively large space is left to allow the entrainment of a large amount of ambient air.
  • the conformator is essentially constituted by two flat walls between which the gas streams circulate.
  • the interval between the walls is reduced as one approaches the receiving member, leaving at this level only a relatively narrow opening. This narrowness of the opening is compensated by spreading the flow over a large width.
  • the spacing of the walls of the shaper is adjustable, and, at the same level, different spacings can be established locally to increase or reduce the gas flow.
  • An object of the invention is in particular to provide means which make it possible to modify the distribution very locally.
  • the invention results from the observation that it is possible to modify the distribution of the fibers in the web formed in a localized and relatively precise manner by acting on the gas streams which are not those used to stretch the fibers.
  • These gas streams are those which combine with the drawing gases after they have left the drawing device.
  • a first effect of the induced gases is to slow down the fibers.
  • the drawing gases are still at very high speed.
  • the ambient air entrainment considerably reduces the speed of the assembly. This reduction is necessary.
  • the projection of the fibers onto the receiving member at the speeds which are those of the drawing gases would break them, thereby undesirably reducing the mechanical properties of the web.
  • Air induction allows the speed to be reduced to values of the order of a few meters per second. Under these conditions the impact of the fibers on the receiving mat is done without damage.
  • Another effect of these induced gases is to increase the volume of the gases carrying the fibers, which makes distribution over large widths easier.
  • the induction of ambient air mainly occurs in the area between the skirt and the upper part of the shaper.
  • it is intended to multiply the induction zones by providing openings at different levels of the walls of the shaper. At these levels, however, the induction is significantly lower.
  • the shaper allows the passage of induced air only at its upper part and to a lesser extent on its sides.
  • the invention consists in locally modifying the flow of induced gases which combine with the drawing gases. This modification is undertaken in the zone where the induced currents are the most intense, that is to say between the skirt and the conformator.
  • Figures 1 and 2 show a traditional glass fiber fleece production unit.
  • the glass usually comes from a melting furnace. It is led into the fore-body or crucible 1 at the base of which is a die 2.
  • the glass is melted directly in the crucible.
  • the die 2 is provided with one or more rows of orifices 3 from which flow glass filaments F.
  • a drawing device 16 comprising a blowing assembly extended by a skirt.
  • the blowing assembly has two symmetrical parts each comprising a tube 5 which conducts the pressurized gas used for drawing. It is usually compressed air or steam.
  • the glass nets F flow from the die into the opening 4 of the drawing device.
  • the gases blown from the lips 6 suck in ambient air through the opening 4. This stream of sucked air promotes the entrainment of the glass filaments in the direction of the opening 4.
  • the gas speed remains very high throughout the channel 7 formed by the two walls 8.
  • the length of the skirt is chosen so that it approximately corresponds to the stretching phase. A shorter length would result in an early deceleration of the gases and a slightly less extensive stretch. Conversely, a longer skirt could adversely affect the quality of the auger fibers. both the risk of impact on the walls 8.
  • FIG. 1 Three adjustment knobs for the spacing of the walls are shown diagrammatically in FIG. 1. Apart from the adjustments made by means of these knobs, the walls of the skirt are substantially parallel.
  • the gases and the fibers coming from the drawing device are directed towards the shaper essentially constituted by the two walls 11 and 12. These are flat except at the curved upper part to facilitate the guiding of the gases.
  • the walls 11 and 12 widen and approach each other from top to bottom. Their width at the top is practically that of the stretching device, while at the bottom it roughly corresponds to the width of the conveyor belt shown diagrammatically at 13.
  • the means for adjusting the spacing of the walls are not shown.
  • the drawing gases induce ambient air.
  • the current lines of the induced gases are represented by arrows I in FIG. 2.
  • air is also induced on the sides of the shaping device, but most of it penetrates into the open upper part 10.
  • the induction depends on the pulse of the inducing gas, it is also in this zone that the most intense induction develops. It is therefore between the skirt and the shaping device that it is desirable to have the means according to the invention for modifying the induced currents.
  • the principle of the invention is based on the fact that a modification of the currents induced upstream of the shaping machine results in a modification of the characteristics of the gases circulating in the shaping machine and finally at the level of the conveyor belt in the veil of fibers deposited.
  • Screens 14 are arranged between the skirt of the drawing device and a wall of the shaper, locally obstructing the passage of induced air.
  • This edge effect may be due to swirling movements which develop on the internal face of the screen as shown in Figure 4 and Figures 5b and 5c.
  • the diagram of these figures represents a section of the gaseous stretching current G between the skirt and the shaper. This current is represented by its limits. Points situated at regular intervals (fig. 5a) between these two limits represent the distribution of the fibers in the current G.
  • the induced currents are represented by the lines of currents I regularly spaced.
  • Figure 5a shows the shape of the current lines as they can develop in the absence of a screen. These lines are regular and go towards the gas layer G.
  • FIG. 5b shows the modifications introduced in the presence of a screen of small width arranged near the current G (screen E i ) and at a distance from this current (screen E0.
  • FIG. 5c shows the modification caused by a screen of large width E 3 .
  • the intensity and the definition of the induced currents is all the less strong as one is located further from the field current and the vortices resulting from the edge effect are therefore weaker, and on the other hand, these less powerful vortices are at a distance from the current and have less or no effect on the latter. In this case the distribution of the fibers is little or not modified.
  • the screen In order for the effects of the modifications of the induced currents on the distribution of the fibers to be very noticeable, the screen must be placed near the gaseous drawing currents. When you dismiss the screen, the effect decreases and quickly becomes imperceptible. It is however possible according to the invention to modulate the action of the screen by varying its distance from the drawing current.
  • FIG. 3 An arrangement of this type is shown in FIG. 3.
  • the screen 15 is separated from the skirt.
  • Another way to modulate the screen effect is to vary the surface which prevents the passage of induced air. We will see about the tests how the effect of the screen changes according to the dimensions.
  • the variation of the surface can be obtained in particular by using screens of different widths 1.
  • FIG. 6 A type of embodiment of this kind is shown in FIG. 6.
  • the screen elements 17 can be combined in any useful combination.
  • the elements 17 are fixed to the end of the rim of the shaper. They are movable around an axis carried by this rim.
  • the arrangement mode represented in FIG. 6 or any other similar mode can be associated with an automatic control device.
  • a detector controlling the density of the fibers in the veil triggers, via the appropriate circuits and mechanisms, the installation or removal of the elementary screens according to instructions stored in memory.
  • the screen or screens obstruct the circulation of the induced gases along the faces of the device. In some cases it may be advantageous to also intervene at the ends, the induction developing of course all around the gaseous stretching current.
  • Figure 7 shows a mode of use of a screen 18 on one side of the device.
  • FIG. 8a A situation of this type is shown in FIG. 8a in which the gas layer is materialized by the current lines.
  • a wall of the shaper is removed to show the path of the gases.
  • Figure 8b shows the same set but with the addition of a screen on the left side. The fiber sheet is moved to the side carrying the screen.
  • the length of the die is approximately 350 mm and reception is carried out on a conveyor belt over a width of 1,600 mm.
  • the representation of the results is graphic. In all cases it is a measure of fiber density on the conveyor belt. These measurements are made at regular intervals in a transverse direction on the carpet. They are expressed as percentages above or below the average value for the entire width of the sample studied.
  • the density of the veil at the point considered is 20% greater than the average density calculated over the entire width of the veil.
  • the abscissa axis represents the relative position of the different measurement points across the width of the web.
  • the variations in density are plotted on the ordinate.
  • the positions and dimensions of the screens E are reproduced on the scale of the conveyor belt by a homothetic projection, to conveniently bring out the effect of the screen on the veil of fibers in the wake which corresponds to it.
  • the dotted curve represents the distribution of the fibers obtained in the absence of any screen. It is found that the product has a density significantly higher than the average in the vicinity of the center of the web and on the other hand a low density on the sides, in particular on the right side.
  • the curve which, in a way, represents the amount of fibers on a cross section of the web is almost flat.
  • Curve 1 is used as a reference. It represents the distribution obtained without a screen.
  • curve 2 corresponds to the installation of a 25 mm screen
  • curve 3 to that of two identical screens placed symmetrically on either side of the fiberizing device.
  • curve 2 corresponds to a single screen and curve 3 to two screens opposite one another.
  • the modification is analogous to that observed with the 25 mm screen.
  • the increase in density is spread over a greater width.
  • Curve 2 which corresponds to the presence of a single screen, shows a split effect.
  • the two peaks of fiber density increase correspond approximately to the edges of the screen while in the center, on the contrary, the density is significantly reduced.
  • Industrial production lines generally include several devices for forming associated fibers to form a single web.
  • the devices are aligned along the receiving member transversely to the latter.
  • the veil is thus formed by the superposition of fibers coming from the different fiberizing devices of the line.
  • the installation may comprise from 6 to 12 fiber-forming devices of the type described above.
  • the multiplicity of fiber layers statistically ensures better uniformity of the web. Defects originating from a layer of fibers are proportionally less significant in the full veil.
  • the implementation of the invention remains very useful for further improving the quality of the product.
  • the defects are detected after the deposition of all the layers of fibers, for example by means of a ray probe. It is also an overall correction which is normally carried out. It is possible to modify the distribution of the fibers only on one of the devices without taking into account whether or not the irregularities observed originate from this specific device. It is also possible according to the invention to modify the regime of several fiber forming devices of the production line.
  • the possibility of working on a single fiber formation device is particularly advantageous in the event of an automation of the correction of density defects. It is thus possible to limit the complexity of the mechanical assemblies responsible for ensuring the movement of the elementary screens.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Inorganic Fibers (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)

Claims (14)

1. Verfahren zur Herstellung einer Faserbahn durch Verziehen eines Schmelzenmaterials, bei dem Fäden (F) des Materials durch Auslauf des Materials aus Öffnungen einer Wanne (2) gebildet werden, die Fäden (F) mittels Gasströmen verzogen werden, die zu beiden Seiten der Materialfäden im Inneren eines Zerfaserungsaggregats angeordnet sind, welches die Strömungen im wesentlichen in Laufrichtung der Fäden kanalisiert, bei dem Umgebungsluft am Ausgang des Zerfaserungsaggregats (16) mitgerissen wird, und bei dem die Gesamtheit der so erzeugten Gasströme mittels eines Leitschachtes geführt und verteilt wird, wobei die Ströme ein für Gas durchlässiges und die Fasern zurückhaltendes Aufnahmeorgan (13) durchsetzen, dadurch gekennzeichnet, daß die induzierte Sekundärströmung der Gase zwischen dem Zerfaserungsaggregat (16) und dem Leitschacht lokal modifiziert wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Modifikation einer örtlichen Begrenzung der Sekundärluftströmung entspricht.
3. Verfahren nach Anspruch 1 oder nach Anspruch 2, bei dem die Vielzahl der verzogenen Fasern ausgerichtet wird und das die Fasern mitführende Auszieh-Gas eine Schichtströmung bildet, dadurch gekennzeichnet, daß die Modifikation der Sekundärströmungen entlang wenigstens einer Seitenfläche der Schichtströmung auf ihrem Weg zwischen dem Zerfaserungsaggregat (16) und dem Leitschacht durchgeführt wird.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Modifikation der Sekundärströmungen symmetrisch auf beiden Seiten der Schichtströmung des Auszieh-Gases durchgeführt wird.
5. Verfahren nach Anspruch 1 oder nach Anspruch 2, bei dem die Vielzahl der verzogenen Fasern ausgerichtet wird und das die Fasern mitführende Auszieh-Gas eine Schichtströmung bildet, dadurch gekennzeichnet, daß die Modifikation der Sekundärströmungen an einem Ende der Schichtströmung des Auszieh-Gases durchgeführt wird.
6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur lokalen Erhöhung der Faserdichte" auf dem Ablageorgan (13) die Strömungsrichtung des Sekundärgases in der entsprechenden Zone zwischen dem Zerfaserungsaggregat (16) und dem Leitschacht umgekehrt wird.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die lokale Strömungsrichtungsumkehr der Sekundärströmungen durch die Anordnung eines oder mehrerer Blenden (14, 15) erreicht wird.
8. Vorrichtung zur Erzeugung einer Faserbahn durch Zerfaserung von Schmelzenmaterial, mit einer Wanne (2) zur Lieferung von Fäden (F) des Materials, mit einem Zerfaserungsaggregat (16) mit Mitteln (5) für den Austritt von zwei Gasstrahlen auf beiden Seiten der Fäden (F) in einem von zwei Fäden (8) begrenzten Raum, mit einem zwei Wände (11, 12) aufweisenden Leitschacht zur Ausrichtung der Gasströme und zu deren seitlicher Verteilung auf einem Förderband (13), welches für Gas durchlässig ist und auf dem sich die Faserbahn bildet, dadurch gekennzeichnet, daß eine oder mehrerer Blenden (14, 15) in dem Bereich zwischen dem Zerfaserungsaggregat (16) und dem Leitschacht angeordnet sind.
9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Blende(n) (14) durch Platten gebildet ist (sind), die sich einerseits am Leitschacht und andererseits am Zerfaserungsaggregat (16) abstützen.
10. Vorrichtung nach Anspruch 9, dadurch gekenzeichnet, daß die Blende(n) (14) entlang der Länge der Seitenflächen des Zerfaserungsaggregats und des Leitschachtes angeordnet ist (sind).
11. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Blende(n) an wenigstens einem Ende des Zerfaserungsaggregats und des Leitschachts angeordnet ist (sind).
12. Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Blenden aus einer Mehrzahl von Seite an Seite angeordneten Blendenelementen (17) gebildet sind.
13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Blendenelemente (17) über die gesamte Breite des in der Nachbarschaft des Zerfaserungsaggregates befindlichen Teiles des Leitschachtes beweglich gelagert sind, wobei die Bildung der erforderlichen Blenden durch die Überführung der entsprechenden Blendenelemente in die Arbeitsstellung oder eine Ruhestellung gebildet werden.
14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Bewegung der Blendenelemente automatisch in Abhängigkeit von Signalen gesteuert wird, die ein Detektor für die Faserdichte der Faserbahn liefert.
EP82402386A 1981-12-28 1982-12-27 Verfahren und Vorrichtung zur Herstellung von Faservliesen Expired EP0083543B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82402386T ATE18781T1 (de) 1981-12-28 1982-12-27 Verfahren und vorrichtung zur herstellung von faservliesen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8124318 1981-12-28
FR8124318A FR2519036A1 (fr) 1981-12-28 1981-12-28 Perfectionnements aux techniques de formation de voiles de fibres

Publications (2)

Publication Number Publication Date
EP0083543A1 EP0083543A1 (de) 1983-07-13
EP0083543B1 true EP0083543B1 (de) 1986-03-26

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EP82402386A Expired EP0083543B1 (de) 1981-12-28 1982-12-27 Verfahren und Vorrichtung zur Herstellung von Faservliesen

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US (1) US4487622A (de)
EP (1) EP0083543B1 (de)
AT (1) ATE18781T1 (de)
CA (1) CA1189664A (de)
DE (1) DE3270191D1 (de)
DK (1) DK547982A (de)
ES (1) ES518571A0 (de)
FR (1) FR2519036A1 (de)
NO (1) NO824343L (de)
PL (1) PL135627B1 (de)

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DE3309989A1 (de) * 1983-03-19 1984-10-11 Bayer Ag, 5090 Leverkusen Verfahren und vorrichtung zur reduktion der geschwindigkeit von stroemenden medien
DE3509426A1 (de) * 1985-03-15 1986-09-18 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Einrichtung zur herstellung von mineralfasern aus silikatischen rohstoffen, insbesondere basalt mit einem modularen viskositaetsmodul von mindestens 1,5, nach dem duesenblasverfahren
US4600423A (en) * 1985-05-01 1986-07-15 Owens-Corning Fiberglas Corporation Method and apparatus for producing a continuous glass filament mat
US4838918A (en) * 1987-12-01 1989-06-13 Alcatel Na Inert atmosphere cooler for optical fibers
DE4011884A1 (de) * 1990-04-12 1991-10-17 Bayer Ag Verfahren zur herstellung von dickstellenarmen mineralwollefasern
US5123983A (en) * 1990-08-24 1992-06-23 E. I. Du Pont De Nemours And Company Gas management system for closely-spaced laydown jets
DE4141659A1 (de) * 1991-12-17 1993-06-24 Gruenzweig & Hartmann Verfahren und vorrichtung zur kontinuierlichen herstellung von mineralwollevliesen
ATE191245T1 (de) * 1995-06-02 2000-04-15 Du Pont Gerät und verfahren zur herstellung einer faserstoffbahn

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FR1438277A (fr) * 1965-01-21 1966-05-13 Saint Gobain Perfectionnements à la fabrication de voiles ou mèches formés de fibres de matières thermoplastiques, telles que fibres de verre
FR2085525B1 (de) * 1970-04-29 1975-01-10 Saint Gobain Pont A Mousson
FR2112074B1 (de) * 1970-09-18 1975-01-10 Saint Gobain

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US4487622A (en) 1984-12-11
EP0083543A1 (de) 1983-07-13
ES8308945A1 (es) 1983-10-16
PL239653A1 (en) 1983-07-04
NO824343L (no) 1983-06-29
PL135627B1 (en) 1985-11-30
FR2519036A1 (fr) 1983-07-01
DK547982A (da) 1983-06-29
ATE18781T1 (de) 1986-04-15
DE3270191D1 (en) 1986-04-30
ES518571A0 (es) 1983-10-16
FR2519036B1 (de) 1984-03-23
CA1189664A (en) 1985-07-02

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