US3792943A - Dry fiber distribution - Google Patents

Dry fiber distribution Download PDF

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Publication number
US3792943A
US3792943A US00183120A US3792943DA US3792943A US 3792943 A US3792943 A US 3792943A US 00183120 A US00183120 A US 00183120A US 3792943D A US3792943D A US 3792943DA US 3792943 A US3792943 A US 3792943A
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Prior art keywords
distribution chamber
screen
gas
inlet opening
wall member
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US00183120A
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English (en)
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J Helgesson
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INGENJORSFA AB
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INGENJORSFA AB
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or 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
    • D04H1/70—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
    • D04H1/736—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

  • This invention relates to the manufacture of more or less felted fiber products from natural or artificial fibers, such as wood fibers, textile fibers, glass and mineral wool fibers, asbestos fibers and the like, and more particularly the invention is concerned with the production of webs of such fibers on a gas-permeable screen, commonly made of wire fabric, while applying a so-called dry process in which flowing gas is used as a medium to sort, transport and distribute the fibers.
  • the dry process referred to comprises two main steps, viz.
  • the use of a gas instead of water or other liquid as a suspension medium for the fibers to be distributed over a wire offers many advantages. This is true not only fromm the viewpoint of safe-guarding the environment but in particular in those cases where the fibers themselves contain liqud-soluble matters which would contaminate the water or where the fibrous material for one reason or the other isintermixed with soluble impurities that are difficult to remove.
  • the wet process commonly requires preparatory drying of the produced web, before the latter can be subjected to the pressing, with or without heating, which is usually required for finishing the product.
  • the wet process is objectionable, when it is desirable e.g. to impregnate the fibers or to cover them with adhesive before the web is being formed, because in such a case large quantities of impregnating agent or adhesive will be lost in the carrier liquid.
  • the invention consists, primarily, in a method of distributing fibers suspended in a vertically rising gas stream over a gas-permeable screen being advanced at the bottom of a distribution chamber and having its underside exposed to a negative pressure, the rising fiber-carrying gas stream being admitted into the distribution chamher in a substantially horizontal direction.
  • the invention also consists in an improved apparatus for producing fiber webs in a dry process by carrying out the beforementioned method.
  • the invention overcomes the inconveniences referred to hereinbefore by suggesting that additional gas streams should be used for controlling the fiber-carrying gas stream as it enters the distribution chamber from the vertical shaft or duct, and also for controlling the pattern according to which the fibers are distributed and deposited over and on the wire or screen within said distribution chamher.
  • FIG. 1 shows a slightly diagrammatic sectional elevation of an apparatus embodying the invention and useful for distributing fibers suspended in a gas stream over a movable, endless wire or screen
  • FIG. 2 is a fragmentary front view of the apparatus as seen from the line IIII in FIG. 1.
  • the section in FIG. 1 is taken in the running direction of the wire, and it shold be understood that the wire can, of course, have any desired width, whereas the width of the fiber distributing means forming part of the apparatus can be adapted either to the entire width of the wire or to the width of a selected part thereof, if it is desirable to form a fiber web that is narrower than the wire itself.
  • an endless, flexible and gas permeable screen 1 suitably of close-meshed wire cloth, runs over conducting and supporting rollers 2, 3 and 4 and passes over an upwardly open suction box 5, the interior of which is connected to a suction source, not shown, e.g. in the form of a suction ventilator having a relatively large capacity, so that a negative pressure can be maintained in the suction box under the wire 1.
  • a suction source not shown, e.g. in the form of a suction ventilator having a relatively large capacity, so that a negative pressure can be maintained in the suction box under the wire 1.
  • Suitable means are provided for driving the wire at a preferably adjustable speed.
  • a distribution chamber Above the section of the wire that passes over the suction box there is arranged a distribution chamber, genhorizontal, movable bottom of a generally rectangular shape in the distribution chamber.
  • the wire 1 is supposed to move from the left to the right as indicated by an arrow but, as it will appear from the following, it is also possible to reverse the moving direction thereof in order to achieve special productional results.
  • the required seal between the wire 1 and the wall portions of the distribution chamber 6 extending across the wire is obtained by means of rollers 7 which are movable towards and away from the wire and against which lean sealing flaps 8 hinged to the outer sides of the respective distribution chamber walls.
  • One of the rollers 7 will then come to roll in direct engagement with the wire 1, as shown to the left in FIG. 1, whereas the other one will roll on top of the fiber web 9 formed on the wire, as shown to the right in FIG. 1.
  • the distribution chamber 6 has a vertical crosssection as seen in the running direction of the wire, FIG. 1, that generally takes the form ofa sector ofa circle, the one bounding radius of said sector being represented by the section of the wire 1 extending over the suction box 5, the other bounding radius being represented by a vertical wall member 10 extending across the wire, and the bounding are being represented by a curved cap or hood 11.
  • the latter forms the top and the right hand wall of the distribution chamber 6 and has approximately at the middle of its are, a slot-shaped opening 12 extending in the entire width of the distribution chamber, i.e., perpendicularly to the plane of the drawing.
  • This elongate opening 12 is provided with an upper adjustable damper plate 13 extending along the entire length thereof and also with a horizontal series of lower damper plates 14 mounted adjacent each other in successive order and being individually adjustable in the direction towards and away from the upper damper plate 13 for varying, section by section, the width and, hence, to a certain extent also of the configuration of the opening 12, as can be seen from FIG. 2.
  • the opening 12 puts the interior of the distribution chamber 6 in communication either with the external air as shown, or with a duct for closed delivery of gas, not shown.
  • the upper part or top of the hood 11 is extended towards the left beyond the wall member 10 and is separated from the upper edge of the latter by an opening 15 that in the plane of the wall member 10 is rectangular and has a length corresponding to the width of the distribution chamber 6 across the running direction of the wire 1.
  • the portion or extension 11 of the hood ll projecting outside the wall member 10 forms an upper, substantially flat and horizontal top cover for a shaft or vertical duct 16 of substantially rectangular horizontal cross section, said shaft having also a length corresponding to the width of the distribution chamber 6.
  • the uppermost portion of the wall member 10 is common to both the shaft 16 and the distribution chamber 6, i.e., the wall member 10 forms a partition between the shaft and the distribution chamber.
  • the shaft 16 and the distribution chamber 6 also have a common end walls 17 which in the illustrated form of apparatus extend downwardly on each one side of the wire 1 and, in fact, represent the supporting end walls of the entire apparatus.
  • the vertical shaft 16 is, on the side facing away from the distribution chamberr 6, bounded by a vertical wall member 18, the upper edge of which is spaced from the hood extension 11' by a slot-shaped opening 19 extending horizontally between the end walls 17.
  • the size of this opening is variable by means of a vertically adjustable damper plate 20. lf desired, this single damper plate may be replaced by a series of smaller damper plates resembling the damper plates 14 previously described, and in such a case not only the size but also the configuration of the opening 19 may be varied, which sometimes can be advantageous. It is also possible to make and attach the damper plate 20 in such a manner that the configuration of the opening 19 can be varied by tilting the damper plate in the plane of the wall member 18.
  • the vertical shaft 16 has its lower end connected to a chamber 21, at the bottom of which there is arranged a conveyor screw 22 for the removal of any such fiber material that is not carried upwards by the gas stream passing through the chamber 21 and the shaft 16.
  • the chamber 21 has a gas inlet opening 23 through which the main flow of air or gas enters the apparatus and the size of which is variable by means of an adjustable damper device 24.
  • the gas inlet opening 23 can be connected to the external air, as shown, or both openings can communicate with a closed gas delivery duct e.g. from the suction source, if a closed gas circuit is desired.
  • a feed chute 25 into which more or less matted together fiber bundles are supplied at a suitable, preferably adjustable rate such as by means of a belt conveyor indicated at 26.
  • a rotary disintegrator 27 in the form of a roller having a plurality of radially projecting pins thereon. This roller is rotated in the clockwise direction at a rather high speed for disintegrating the fiber bundles received in the chute 25 and for throwing out the separated, free fibers into the lower part of the shaft 16 and into the chamber 21 from which the shaft proceeds upwards.
  • a small amount of air also enters the apparatus through the feed chute 25, but this can be avoided, if desired, by delivering the fiber bundles into the chute through an air lock arrangement well known in itself but not shown.
  • the fiber bundles received in the feed chute 25 are broken up by the rotating disintegrator 27 and the free fibers are caught and carried along upwards by the gas stream passing through the chamber 21 and rising through the shaft 16.
  • Such fiber material that, for one reason or another, is not carried away by the rising gas stream gathers at the bottom of the chamber 21 and is removed by means of the conveyor screw 22 which, of course, can be replaced by any other suitable feedingout device.
  • the removed residue of the fiber material may, if desired, be returned to the feeding-in conveyor 26.
  • the feed chute 25 and the disintegrator 27 have a length corresponding to the length of the chamber 21 and that of the horizontal cross-section of the shaft 16, whereby a good distribution of the fibers in the entire shaft is achieved.
  • an important fiber sorting will take place, whereby heavy fibers as well as unresolved fiber bundles and at least certain heavy im purities become separated, because the rising gas stream is unable to carry them upwards through the shaft 16.
  • the deflection of the fibre-carrying gas stream through the opening 15 into the distribution chamber 6 is greatly improved.
  • the fact that the wall member forms only a thin partition between the distribution chamber and the shaft 16 assists in preventing uncontrolable fiberdeposits.
  • the second gas stream admitted through the opening 19 causes the fiber-carrying vertical gas stream to follow a path resembling a trajectory when entering the interior of the distribution chamber and continuing towards the wire 1.
  • the thickness of the fiber web formed on the wire 1 may be controlled in the transverse direction of the latter to a certain degree.
  • Such transversal thickness control is, however, accomplished with better accuracy by means of the additional gas stream entering the upper part of the distribution chamber 6 through the opening 12. This will result from the fact that the lastmentioned gas stream, although having a main direction from above and downwards in the distribution chamber, will also have a certain component of movement in a direction which more or less crosses the fibercarrying gas stream and thereby disturbs its trajectory.
  • sensing means indicated at 28 By sensing the thickness of the fiber web 9 in a plurality of points spaced in the transverse direction of the wire 1 by means of sensing means indicated at 28, which is suitably done slightly before the fiber web is leaving the distribution chamber 6, and by letting these sensing means 28 govern the operation of small actuators 29 adjusting the positions of the lower damper plates 14, possible tendencies of thickness variations in the fiber web can be inhibited, so that, from a practical point of view, a uniform thickness of the fiber web is achieved over the entire width of the wire 1. If, on the other hand, it is desirable to produce a fiber web having a thickness that varies in the transverse direction of the wire 1, a similar control may be used, of course, in order to obtain a desired corrugation of the upper side of the fiber web. In fact, the possibility of varying andd correcting the thickness of the fiber web in the way described is very striking and surprising.
  • the gas-suspended fibers entering the distribution chamber 6 through the opening will follow a trajectory starting in a substantially horizontal direction. As known per se, this will result in a certain and frequently very desirable separation or sorting of the fibers according to size and weight. More particularly, the coarser and heavier fibers will be thrown farther away from the entrance opening 15, while the finer and lighter fibers will be sucked down the shortest way towards the wire 1, i.e., be deposited on the wire closer to the wall member 10. This effect can, if desired, be utilized for achieving a certain Stratification of differently sized fibers in the fiber web. Thus, if the wire 1 is driven as illustrated in FIG.
  • the lighter and finer fibers will collect at the bottom of the fiber web, closest to the wire, while the heavier and coarser fibers will be deposited on top of the lighter ones.
  • the stratification effect may to a certain degree be controlled by more or less disturbing the flow of gas inside the distribution chamber 6 which is also effected by means of the gas streams entering through the opening 12. If a very marked disturbance of this kind is desirable, additional gas-admitting, slot-shaped openings may be provided in the hood 11, preferably above the opening 12. It is also possible to change the position of the opening 12 in the hood in order to vary the distribution pattern of the fibers.
  • the invention offers surprising possibilities for the control and variation of the operation of the apparatus, whereby the advantages of the basic operating principle may be fully utilized.
  • the apparatus itself is nevertheless relatively simple from a structural point of view and, before all, it is reliable in operation and capable of producing fiber webs of a high quality and of a great accuracy in thickness at a high speed from most types of fibers which at all lend themselves to transportation by means of gas streams.
  • said vertical shaft being generally rectangular in horizontal cross section and extending across the full width of said distribution chamber and being separated from said distribution chamber by a substantially upright partition wall member extending transversely of the running direction of said screen, said partition wall member forming the rear wall of the distribution chamber, said distribution chamber having a section extending in the running direction of said screen that resembles a sector of a circle, of which one bounding radius is represented by said screen, the other bounding radius is represented by said partition wall member and the arc is represented by curved wall member forming part of said hood-like cover, said curved wall member being extended beyond the upper edge of said partition wall member to form a substantially horizontal top cover for said vertical shaft and being vertically spaced from said partition wall member so as to define with the latter and above the same an opening extending in a vertical plane and representing said fiber inlet opening of the distribution chamber, a slot-like gas inlet opening being provided at the upper end of said vertical shaft and horizontally opposite to said fiber inlet opening for the introduction of a second stream of gas in a substantially horizontal direction across
  • said vertical shaft being generally rectangular in horizontal cross section and extending across the full width of said distribution chamber and being separated from said distribution chamber by a substantially upright partition wall member extending transversely of the running direction of said screen, said partition wall member forming the rear wall of the distribution chamber, said distribution chamber having a section extending in the running directionn of said screen that resembles a sector ofa circle, of which one bounding radius is represented by said screen, the other bounding radius is represented by said partition wall member and the arc is represented by a curved wall member forming part of said hood-like cover, said curved wall member being extended beyond the upper edge of said partition wall member to form a substantially horizontal top cover for said vertical shaft and being vertically spaced from said partition wall member so as to define with the latter and above the same an opening extending in a vertical plane and representing said fiber inlet opening of the distribution chamber, an adjustable slot-like gas inlet opening being provided at the upper end of said vertical shaft and horizontally opposite to said fiber inlet opening for the introduction of a second stream of gas in a substantially horizontal
  • each of said at least one gas inlet opening of the distribution chamber is variable as to its size.
  • each of said at least one gas inlet opening of the distribution chamber is adjustable as to its position.
  • each of said at least one gas inlet opening of the distribution chamber is variable as to its configuration.
  • said distribution chamber is provided with a roller that is movable towards and away from said screen and adapted to ride on said fiber web, and a hinged flap connected in sealing engagement with a transverse wall member of said distribution chamber rests on said roller.
  • said means for suspending fibers in the gas stream rising through said shaft comprises a rotary disintegrator for breaking up collections of tangled fibers and for throwing the freed fiber into said vertical shaft and wherein the lower end of said vertical shaft is connected to a chamber, at the bottom of which conveyor means are provided for removing residues of fiber material which the rising stream of gas in said shaft is unable to carry upwardly into said distribution chamber.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00183120A 1970-10-14 1971-09-23 Dry fiber distribution Expired - Lifetime US3792943A (en)

Applications Claiming Priority (1)

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SE13882/70A SE343243B (es) 1970-10-14 1970-10-14

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DE (1) DE2149892A1 (es)
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SE (1) SE343243B (es)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874831A (en) * 1973-08-09 1975-04-01 Fibre Formations Inc Machine for producing pulp bats
US4035121A (en) * 1976-02-25 1977-07-12 Rando Machine Corporation Machine for forming lignocellulosic fiber mats
US4060360A (en) * 1975-05-29 1977-11-29 Karl Kroyer St. Anne's Limited Apparatus for dry forming a layer of fiber
US4351793A (en) * 1979-02-21 1982-09-28 Kimberly-Clark Corporation Method for dry forming a uniform web of fibers
US4495119A (en) * 1982-07-12 1985-01-22 Raymond Chung Method for producing homogeneous batts of air-laid fibers
US4624819A (en) * 1983-12-23 1986-11-25 Svenska Traforskningsinstitutet Method for producing layers of dry fibres on a forming surface
US4627953A (en) * 1983-01-25 1986-12-09 The James River Corporation Method for forming dry laid webs
US4662032A (en) * 1985-05-08 1987-05-05 Kmw Aktiebolag Method and apparatus for forming a web
WO1989007674A1 (en) * 1988-02-17 1989-08-24 Oy Scanwoven Ab Non-woven article made of a heat-resisting material, method for manufacturing the article and apparatus for implementing the method
US4865798A (en) * 1987-05-25 1989-09-12 Carl Schenck Ag Process and apparatus for producing a fiber web
US4927346A (en) * 1986-12-08 1990-05-22 Nordson Corporation Apparatus for depositing particulate material into a pad of fibrous material in a forming chamber
US4948542A (en) * 1986-12-11 1990-08-14 Sunds Defibrator Aktiebolag Method and device for manufacturing fibre board
US4956896A (en) * 1989-05-03 1990-09-18 Phoenix Associates Method and apparatus for forming nonwoven fiber webs
US5017324A (en) * 1986-12-08 1991-05-21 Nordson Corporation Method for depositing particulate material into a pad of fibrous material in a forming chamber
US5028224A (en) * 1990-01-09 1991-07-02 Kimberly-Clark Corporation Apparatus for intermittently depositing particulate material in a substrate
US5065479A (en) * 1989-04-06 1991-11-19 Claudio Governale Venturi-type conveyor for fiber laying in nonwoven material production
US5102585A (en) * 1990-01-09 1992-04-07 Kimberly-Clark Corporation Method for intermittently depositing particulate material in a substrate
WO1993001341A1 (en) * 1991-07-10 1993-01-21 Cotton Unlimited, Inc. Method for making insulation
US5303455A (en) * 1990-11-13 1994-04-19 Trutzschler Gmbh & Co. Kg Apparatus for making a fiber lap
WO1997007947A1 (en) * 1995-08-25 1997-03-06 The Procter & Gamble Company Apparatus for sorting substrate components according to size, and method of sorting substrate components therewith
FR2768440A1 (fr) * 1997-09-13 1999-03-19 Truetzschler Gmbh & Co Kg Dispositif pour la production d'une nappe de fibres
US6267575B1 (en) * 1998-12-11 2001-07-31 Kimberly Clark Worldwide, Inc. Apparatus for the uniform deposition of particulate material in a substrate
FR2824082A1 (fr) * 2001-04-26 2002-10-31 Thibeau Machine pour la fabrication d'un non-tisse par voie aeraulique, comportant une chambre de dispersion des fibres la paroi avant est poreuse en partie basse
EP1464240A1 (de) 2003-04-03 2004-10-06 Hauni Maschinenbau AG Verfahren und Vorrichtung zur Herstellung eines Vlieses für die Herstellung von Filterstäben
EP1464241A1 (de) 2003-04-03 2004-10-06 Hauni Maschinenbau AG Verfahren zur Herstellung eines Vlieses für die Herstellung von Filtern der tabakverarbeitenden Industrie sowie Filterstrangherstelleinrichtung
EP1464239A1 (de) 2003-04-03 2004-10-06 Hauni Maschinenbau AG Verfahren und Einrichtung zur Herstellung eines Filterstranges
EP1464238A1 (de) 2003-04-03 2004-10-06 Hauni Maschinenbau AG Verfahren zur Aufbereitung endlicher Fasern und Aufbereitungseinrichtung für endliche Fasern zur Verwedung bei der Herstellung von Filtern
US20120190262A1 (en) * 2009-07-31 2012-07-26 Gorm Rosenberg Method for manufacturing a mineral fiber-containing element and element produced by that method
WO2012104255A1 (en) * 2011-01-31 2012-08-09 Rockwool International A/S Method and apparatus for removing shot from mineral fibre material
CN103221599A (zh) * 2010-11-19 2013-07-24 欧瑞康纺织有限及两合公司 用于纤维网的干法成网的设备
US20130221567A1 (en) * 2010-07-30 2013-08-29 Rockwool International A/S Method for Manufacturing a Fibre-Containing Element and Element Produced by that Method
US8793840B2 (en) 2010-08-31 2014-08-05 Oerlikon Textile Gmbh & Co. Kg Method and device for the dry forming of a fiber web
CN104169484A (zh) * 2011-12-30 2014-11-26 3M创新有限公司 用于制备非织造纤维网的方法和设备
CN104220661A (zh) * 2011-12-30 2014-12-17 3M创新有限公司 用于制备非织造纤维网的设备和方法
RU2542545C1 (ru) * 2011-01-31 2015-02-20 Роквул Интернэшнл А/С Способ изготовления элемента, содержащего минеральное волокно, и элемент, изготовленный этим способом
WO2023046972A3 (de) * 2021-09-26 2023-08-03 Dieffenbacher GmbH Maschinen- und Anlagenbau Windstreukammer und verfahren zum streuen und formen eines rieselfähigen materials auf einem formband

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DE3325669C2 (de) * 1982-08-16 1986-05-28 Armstrong World Industries, Inc., Lancaster, Pa. Verfahren und Vorrichtung zur kontinuierlichen Herstellung einer Faservliesbahn
DE102011109961A1 (de) * 2011-08-11 2013-02-14 Peter Kohl Nachfolger Franz Kohl KG Verfahren zur Aufbereitung von Regeneratfasern

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US2219346A (en) * 1936-08-19 1940-10-29 Owens Corning Fiberglass Corp Method and apparatus for producing fibrous material
US3635627A (en) * 1969-09-05 1972-01-18 Franklin E Palmer Calender sheeting thickness correction control system
US3671210A (en) * 1969-09-15 1972-06-20 Richardson Service Inc Method and apparatus for fiberizing molten mineral materials

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US2219346A (en) * 1936-08-19 1940-10-29 Owens Corning Fiberglass Corp Method and apparatus for producing fibrous material
US3635627A (en) * 1969-09-05 1972-01-18 Franklin E Palmer Calender sheeting thickness correction control system
US3671210A (en) * 1969-09-15 1972-06-20 Richardson Service Inc Method and apparatus for fiberizing molten mineral materials

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874831A (en) * 1973-08-09 1975-04-01 Fibre Formations Inc Machine for producing pulp bats
US4060360A (en) * 1975-05-29 1977-11-29 Karl Kroyer St. Anne's Limited Apparatus for dry forming a layer of fiber
US4035121A (en) * 1976-02-25 1977-07-12 Rando Machine Corporation Machine for forming lignocellulosic fiber mats
US4102963A (en) * 1976-02-25 1978-07-25 Rando Machine Corporation Method of forming lignocellulosic fiber mats
US4351793A (en) * 1979-02-21 1982-09-28 Kimberly-Clark Corporation Method for dry forming a uniform web of fibers
US4495119A (en) * 1982-07-12 1985-01-22 Raymond Chung Method for producing homogeneous batts of air-laid fibers
US4627953A (en) * 1983-01-25 1986-12-09 The James River Corporation Method for forming dry laid webs
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CA957141A (en) 1974-11-05
FI49991C (fi) 1975-11-10
DE2149892A1 (de) 1972-04-20
FI49991B (es) 1975-07-31
SE343243B (es) 1972-03-06

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