US3512218A - Machine for forming random fiber webs - Google Patents

Machine for forming random fiber webs Download PDF

Info

Publication number
US3512218A
US3512218A US699213A US3512218DA US3512218A US 3512218 A US3512218 A US 3512218A US 699213 A US699213 A US 699213A US 3512218D A US3512218D A US 3512218DA US 3512218 A US3512218 A US 3512218A
Authority
US
United States
Prior art keywords
feed
air
fibers
lickerins
machine
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
US699213A
Other languages
English (en)
Inventor
Howard H Langdon
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.)
Curlator Corp
Original Assignee
Curlator Corp
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 Curlator Corp filed Critical Curlator Corp
Application granted granted Critical
Publication of US3512218A publication Critical patent/US3512218A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D04H1/70—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

Definitions

  • FIG. 1
  • the fibers are doifed from the lickerins by centrifugal force and by an air stream flowing through a balancing chamber disposed centrally between the two condensers and their feed plates. This stream is split by a saber, which is disposed between the two lickerins, so that it flows past the two lickerins.
  • the split air stream (now two streams) delivers the fibers doffed from the lickerins onto an endless condenser belt on which the fibers are laid down in random fashion to form the random fiber web.
  • This invention relates to apparatus for producing random fiber webs, that is, for producing textile articles without spinning, Weaving, or knitting operations.
  • the invention relates to organized machines of the general type disclosed in the patents of Buresh and Langdon Nos. 2,700,188, 2,744,294, 2,876,- 500 and of Langdon et a1. 2,890,497.
  • One object of the present invention is to provide a machine capable of forming random fiber webs faster than prior such machines. To this end it is an object of the invention to provide apparatus for more efficiently producing random fiber webs, in which the product flow rate is increased.
  • Another object of the invention is to provide a machine of the character described suited to form random fiber webs With the best widthwise uniformity.
  • FIG. 1 is a fragmentary side elvational view, with parts broken away and shown in section, showing a random fiber web forming machine built according to one embodiment of this invention
  • FIG. 2 is an elevational view, taken at right angles to FIG. 1 and partly broken away, showing fragmentarily the pneumatic feed system for supplying fibers to this machine;
  • FIG. 3 is an enlarged fragmentary sectional view showing, somewhat diagrammatically and on an enlarged scale, the structure of the lower part of the machine of FIG. 1;
  • FIG. 4 is a side elevation on a somewhat reduced scale of the machine
  • FIG. 5 is a plan view of this machine
  • FIG. 6 is a fragmentary View on an enlarged scale taken at the base of the machine and illustrating the mounting of the condenser screen on which the random fiber web is laid down;
  • FIG. 7 is a fragmentary sectional view on a still further enlarged scale showing the connection of the air exhaust duct to the condenser.
  • FIG. 8 is a side elevation, with parts broken away, showing how hopper type feed mechanisms, instead of a pneumatic feed system, may be connected to the machine for feeding fibers to the machine.
  • 10 denotes a pneumatic system for supplying fibers to the random fiber web forming machine, designated as a whole at 11.
  • This fiber supply system may be similar to that disclosed in applicants pending application, Ser. No. 521,267, filed Jan. 18, 1966. It comprises a main line duct 12 which may be used to supply a line of machines, and which is connected by supply ducts 13 and 14 and by return ducts 15 and 16 to machine 11.
  • the main duct 12 may be fed from any suitable source as, for instance, a conventional opener.
  • the ducts 13 and 14 deliver the air-conveyed fibers to trumpets 17 and 18, which form parts of the air bridge system conveying the fibers from the fiber supply source to rotary feed condensers 20 and 22.
  • the condensers may be of conventional construction, and comprise rotary screens 24 and 26 (FIG. 3) carried by end plates 28 and 30, respectively (FIG. 1) which revolve about fixed suction tubes 32 and 34, respectively.
  • Each tube is slotted, as indicated at 35 (FIG. 3) in the case of the tube 32, along its length to suck the air through the screen 20 into the tube.
  • the fibers are deposited on the screen.
  • Doffing rolls 36 and 38 are disposed in co-ntiguity to the condenser screens to doif from the screens onto feed plates 44 and 46' (FIG. 3), the mats of fibers laid down on the screens.
  • Feed plates 44 and 46 are extensions of the plates that bound one side of the trumpets 17 and 18.
  • the mats are picked up by feed rolls 40 and 42, which feed the mats over the feed plates 44 and 46, and nose bars 48 and 50, respectively, to the rotary lickerins 52 and 54, respectively.
  • feed rolls 40 and 42 which feed the mats over the feed plates 44 and 46, and nose bars 48 and 50, respectively, to the rotary lickerins 52 and 54, respectively.
  • These lickerins are of standard construction, as are the feed plates and the feed rolls.
  • the lickerins have peripheral teeth which comb fibers from the mats as the lickerins revolve.
  • the lickerins are driven at high speed according to conventional practice; and the fibers are dotted from the teeth of the lickerins by centrifugal force and by air streams flowing over the teeth.
  • the air streams for dotting the fibers from the lickerins are supplied through an intake duct 60 (FIG. 3) which passes through each side wall of the machine and may be fed by a pressure fan or fans.
  • a restrictive slot 62 is provided in this duct 60 to equalize the widthwise flow into the chamber 64 through which the duct 60 extends.
  • This chamber is of generally rectangular cross-section, and has ports 66 in its bottom through which the air flows to a balancing chamber 70 that is bounded by the downwardly converging walls 71, 72, and the side walls of the machine.
  • a saber 74 Mounted at the bottom of the chamber 70 is a saber 74, which is cylindrical in shape and is removable endwise.
  • the air velocity is a maximum normal to the lickerins to aid in dofling of the fibers from the teeth of the lickerins.
  • the fibers are then carried by the air streams through passages and 76 formed between cover plates 77 and 78 and the side walls 80, 82, respectively, of a chamber 83.
  • the cover 77 may be relatively fixed but may be pivoted for cleaning about the axis of a doffing roll 84 that is contiguous to lickerin 52.
  • the cover 78 is made in two parts hingedly connected to one another.
  • a doffing roll 86 It pivots at one end about the axis of a doffing roll 86; and it pivots intermediate at its ends on hinge 79. It is adjustable by adjustment of its lower part 81 for thickness or weight of the web being formed. Both covers preferably have Plexiglas or other transparent windows in them for observation purposes during operation, or may be made completely of Plexiglas.
  • the dofiing rolls 84 and 86 aid in conventional manner the doffing of the fibers from the lickerins. They set up rotating swirls of air currents which materially aid the dofling of the fibers from the teeth of the lickerins.
  • the fibers doffed from the lickerins are deposited by the air stream on a condenser 85 which comprises an endless screen belt 90 that may be made of Fourdrinier screening and that travels over two pulleys 92 and 94 (FIG. 1) carried by rotary shafts 96 and 98, respectively.
  • the undersurface 100 of cover section 81 has sealing engagement on its bottom surface with the top of the web carried by screen 90.
  • a suction box 102 which extends between the pulleys 92 and 94 (FIG. 1). It has sealing pads 104 on its upper surface which engage the inside of the screen as its upper reach moves over them, to insure optimum suction through the screen. It has a port 106 in its top into which the air streams flow by operation of a suction fan.
  • the rolls 92, 94, over which the condenser screen 90 travels are journaled by their shafts in frame plates 167 (FIG. 6) which carry stub shafts 171 on which are journaled rollers 173 that ride on rails 175 which are secured on top of the base of the machine.
  • the random fiber web condenser can be slid, as a unit, out of the machine for cleaning or replacement.
  • the drive motor 170 (FIGS. 4 and for the condenser belt 90 is preferably a variable speed motor (FIG. 5) and may drive the belt through a belt and pulley, or chain and sprocket drive, or through gearing.
  • Fans mounted in housings 110 and 112 create the high velocity air stream for doffing the fibers from the lickerins 52, 54 and for depositing the fibers in random fashion on the product condenser screen 90.
  • These fans are connected to opposite sides of the suction box 102 (FIG. 3) by ducts 114 (FIG. 4), and deliver the air by ducts 116 and 118, respectively (FIG. 5) to opposite ends of the tube 60 (FIG. 3).
  • the air box 83 serves to aid in streamlining the airfiber flow from the saber to the condenser 90. If this air box were not provided there could be a serious turbulence pocket below the saber, upsetting the product web quality.
  • This air box due to clearance at 122, 124- between the saber tube and the side plates 80 and 82 of the air box also performs an important function with respect to product web quality.
  • the clearance between the plate end and the saber is adjustable on each side of the saber and ordinarily is from .016" to .062".
  • the air jets using full air pressure from the fans act to spill this turbulence pocket, with marked improvement in total air flow as well as in web quality.
  • the fans are driven by direct connected motors 126, 128. 1
  • the lickerins 52, 54 are driven by separate directconnected motors 130, 132 (FIG. 5).
  • the variable-speed, feed roll drive motor unit 176, 178 (FIG. 5) is located on top of the air box 64 and is connected to the feed rolls 40, 42 (FIG. 3) through gearing (not shown).
  • the suction on the feed condensers which assists in deposit of the fibers thereon from the trumpets 17 and 18 (FIG. 3), is generated by fans 134, 136, respectively,
  • FIG. 2 driven by motors 138 and 140, respectively, which are mounted on top of the chamber 64.
  • the fans 134,136 suck the air through each of the feed condensers 20, 22 to one end thereof, and then through the ducts 142, 144 (FIG. 4), respectively; and the exhaust air is delivered by the fans 134, 136 to ducts 15 and 16 (FIG. 1), respectively, which return the air through connecting ducts 145, 146, respectively, to ports 147, 148, respectively, which communicate with the main duct 12 at the top thereof.
  • a vane or damper (FIG.
  • the feed plates-48 and 50 are of so substantial depth and are disposed to constitute extensions of trumpets 17 and 18, respectively, and of side walls 71 and 72, respectively, of balancing chamber 70. They form stabilizing members between the side plates 71 and 72 of the balancing chamber 70 and the opposed walls 73 and 75, respectively, of the trumpets 17 and 18, respectively.
  • the base section of the machine has a box section framework with cover plates top and bottom; and the longitudinal box sections are used as suction air ducts from the condenser unit to the inlets of the webber fans 110 and 112.
  • the return air stream may be humidified with spray jets to eliminate static electricity so far as possible in the fiber flow, similar to the arrangement disclosed in the Buresh and Langdon Pat. No. 2,700,188, granted Jan. 25, 1955.
  • FIG. 8- discloses alternate methods for feeding the random fiber web machine.
  • two different hopper feeders 190, 192 are shown to illustrate the scope of possible use of the machine.
  • Each hopper feeder is similar, in general, to the feed mechanism disclosed in the Langdon et al. Pat. No. 2,890,497, granted June 16, 1959.
  • Each feed mechanism comprises a hopper 194, an endless floor apron or conveyor belt 195, traveling over pulleys 196 and 197.
  • This conveyor belt carries the stock material in the hopper to an elevating apron or conveyor 198 which is mounted to travel over pulleys 200, 201, and which may be made of a plurality of slats in which there are embedded pins 202.
  • a stripping apron 204 which travels over pulleys 205 and 206, and which is also provided with slats that carry pins, is mounted in cooperative relation to the elevator to strip fibers from the elevator apron.
  • feeder 190 incorporates feed rolls 222 and 224 and an oscillating gate 225, which is pivotally mounted in the side walls of this feeder, which is actuated by pressure of stock in the feeder to effect closure of a clutch to drive the feed rolls 222, 224 to cause these rolls to feed stock from the reserve box 220 into the hopper 194 in a manner similar to the feed rolls 46 of the Auten and Langdon Pat. No. 3,326,609, granted June 20, 1967.
  • the fibers are stripped from the elevating aprons 198 by an air stream traveling over the pins 202 by the suction in the ducts 13', 14' which deliver the fibers to the condensers 20', 22'.
  • FIG. 8 Parts of the machine shown in FIG. 8, which are similar to the parts of the machine previously described are designated by the same reference numerals but primed.
  • the air is drawn by suction from the base 160' of the machine through ducts 210 to the pressure fans 212, which are connected by ducts 214 to the two ends of the air duct'60 in the balancing chamber 64'.
  • the ducts 142 and 144 connect to motor driven fans 134, 136', respectively; but these merely exhaust to atmosphere.
  • a humidifier may be put in the box 161'.
  • the stock material may be dumped into feeder 192. It may be fed to feeder 190 pneumatically through the reserve box 220.
  • the product flow rate can be doubled as compared with prior machines through use of two feed systems, two rotaryv condensers, two lickerins, a single air stream split to doff fibers from the two lickerins, and a single product web.
  • the web weight is readily adjustable by adjustment of the position of cover section 81 (FIG. 3) with reference to the product condenser screen 90.
  • the feed con densers 24, 26 are part of the web-forming unit instead of, as previously, being part of feeder mechanism, such as shown at 190, 192'.
  • This change makes it possible to form the feed mats close to the feed rolls.
  • the air bridges function to strip the fiber tufts from the elevator aprons as needed, and these tufts drop vertically by combined gravity and air flow to the trumpets 17, 18. This insures widthwise uniformity in the product.
  • This arrangement contrasts with prior constructions in which the feed condenser and associated parts are disposed at the air bridge and the feed mat has then to be transferred by conveying means to the feed roll for the lickerin.
  • the separation of the air bridge and trumpet as shown in FIG. 8 makes it possible to form a very uniform feed mat, and hence a very uniform product web.
  • a machine for forming a random fiber web comprising:
  • a machine for forming a random fiber web comprising:
  • a movable product condenser disposed downstream of said lickerins on which the fibers doffed from the two lickerins are deposited in random fashion to form thereon a single random fiber web
  • said air stream directing means comprising a chamber disposed between said condensers and into which air is flowed and opening at its bottom between said lickerins, and
  • a saber disposed at the bottom of said chamber to split the air stream flowing from said chamber into two streams flowing, respectively, past the two lickerins.
  • a second chamber is disposed beneath said saber
  • ports are provided in said second chamber adjacent opposite sides of said saber to direct jets of air at spaced points against said saber.
  • a mainline duct for carrying air and fibers
  • a random fiber web forming machine comprising two feed condensers rotatable about spaced, parallel axes,
  • a feed roll associated with each feed plate for feeding a mat therefrom to the associated lickerin so that the lickerin in its rotation will comb fibers from the mat
  • a saber disposed at the open lower end of said chamber between said lickerins to divide the air stream issuing from the chamber and pass it by the two lickerins
  • a portion, at least, of one of the walls bounding the space between said lickerin and said product condenser is adjustable relative to said product condenser to control the thickness of the web laid down on said product condenser.
  • a hopper associated with each duct for holding a supply of fibers
  • a rotary feed roll associated with each feed plate to feed the mat of fibers from the associated feed condenser over said feed plate to the associated lickerin to comb fibers from the mat
  • said saber operating to divide the air sucked bysaid means into two air streams flowing past the two lickerins to doff fibers therefrom.
  • justable means is provided for controlling the thickness of the webs laid down on said product condenser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
US699213A 1968-01-19 1968-01-19 Machine for forming random fiber webs Expired - Lifetime US3512218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69921368A 1968-01-19 1968-01-19

Publications (1)

Publication Number Publication Date
US3512218A true US3512218A (en) 1970-05-19

Family

ID=24808387

Family Applications (1)

Application Number Title Priority Date Filing Date
US699213A Expired - Lifetime US3512218A (en) 1968-01-19 1968-01-19 Machine for forming random fiber webs

Country Status (6)

Country Link
US (1) US3512218A (de)
AT (1) AT305095B (de)
DE (1) DE1815021C3 (de)
FR (1) FR1598092A (de)
GB (1) GB1218226A (de)
NL (1) NL6818529A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2202955A1 (de) * 1971-01-21 1972-08-10 Johnson & Johnson Bahn,insbesondere Faservliesbahn,und Verfahren zu ihrer Herstellung
US3772739A (en) * 1971-01-21 1973-11-20 Johnson & Johnson Web forming apparatus
US3862472A (en) * 1973-01-05 1975-01-28 Scott Paper Co Method for forming a low basis weight non-woven fibrous web
US3914822A (en) * 1974-03-14 1975-10-28 Rando Machine Corp Machine for forming random fiber webs
US3972092A (en) * 1973-03-01 1976-08-03 Rando Machine Corporation Machine for forming fiber webs
US4223677A (en) * 1979-05-11 1980-09-23 Scott Paper Company Absorbent fibrous structure and disposable diaper including same
US4240180A (en) * 1979-02-07 1980-12-23 Rando Machine Corporation Fiber feeding apparatus for carding machines and the like
US4519114A (en) * 1982-12-15 1985-05-28 Rhyne Fibers, Inc. Apparatus and method for cleaning textile fiber
DE3832098A1 (de) * 1987-09-22 1989-05-03 Johnson & Johnson Vorrichtung und verfahren zur herstellung eines faserkissens
US4904439A (en) * 1988-07-18 1990-02-27 Johnson & Johnson Method of making a non-woven fiber web using a multi-headed ductless webber
US4921659A (en) * 1987-09-22 1990-05-01 Chicopee Method of forming a fibrous web using a variable transverse webber
US20020007169A1 (en) * 1996-12-06 2002-01-17 Weyerhaeuser Company Absorbent composite having improved surface dryness
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
DE3824570B4 (de) * 1987-07-20 2004-07-15 Johnson & Johnson Vorrichtung zur Herstellung einer Faserbahn
DE3824569B4 (de) * 1987-07-20 2004-07-15 Johnson & Johnson Vorrichtung zur Herstellung einer Faserbahn
EP1672110A1 (de) 2004-12-16 2006-06-21 Asselin-Thibeau Verfahren und Vorrichtung zum Transport eines Krempelvlies oder eines Vliesgewebe nach dem Airlaidverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704862A (en) * 1951-08-09 1955-03-29 Ennis E Moss Jr Cotton lint cleaners
US2807054A (en) * 1947-04-18 1957-09-24 Kimberly Clark Co Fluff making method
US3010161A (en) * 1954-02-16 1961-11-28 Wood Conversion Co Method and means for producing mixed fiber suspensions in air and felts therefrom
US3210128A (en) * 1962-08-07 1965-10-05 Daiwa Spinning Co Ltd Apparatus for delivering fiber material coming out of a blowing machine to carding engines
US3370327A (en) * 1967-03-06 1968-02-27 Lummus Cotton Gin Co Apparatus for cleaning lint cotton and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807054A (en) * 1947-04-18 1957-09-24 Kimberly Clark Co Fluff making method
US2704862A (en) * 1951-08-09 1955-03-29 Ennis E Moss Jr Cotton lint cleaners
US3010161A (en) * 1954-02-16 1961-11-28 Wood Conversion Co Method and means for producing mixed fiber suspensions in air and felts therefrom
US3210128A (en) * 1962-08-07 1965-10-05 Daiwa Spinning Co Ltd Apparatus for delivering fiber material coming out of a blowing machine to carding engines
US3370327A (en) * 1967-03-06 1968-02-27 Lummus Cotton Gin Co Apparatus for cleaning lint cotton and the like

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2202955A1 (de) * 1971-01-21 1972-08-10 Johnson & Johnson Bahn,insbesondere Faservliesbahn,und Verfahren zu ihrer Herstellung
US3768118A (en) * 1971-01-21 1973-10-30 Johnson & Johnson Web forming process
US3772739A (en) * 1971-01-21 1973-11-20 Johnson & Johnson Web forming apparatus
US3862472A (en) * 1973-01-05 1975-01-28 Scott Paper Co Method for forming a low basis weight non-woven fibrous web
US3972092A (en) * 1973-03-01 1976-08-03 Rando Machine Corporation Machine for forming fiber webs
US3914822A (en) * 1974-03-14 1975-10-28 Rando Machine Corp Machine for forming random fiber webs
US4240180A (en) * 1979-02-07 1980-12-23 Rando Machine Corporation Fiber feeding apparatus for carding machines and the like
US4223677A (en) * 1979-05-11 1980-09-23 Scott Paper Company Absorbent fibrous structure and disposable diaper including same
US4519114A (en) * 1982-12-15 1985-05-28 Rhyne Fibers, Inc. Apparatus and method for cleaning textile fiber
DE3824570B4 (de) * 1987-07-20 2004-07-15 Johnson & Johnson Vorrichtung zur Herstellung einer Faserbahn
DE3824569B4 (de) * 1987-07-20 2004-07-15 Johnson & Johnson Vorrichtung zur Herstellung einer Faserbahn
DE3832098A1 (de) * 1987-09-22 1989-05-03 Johnson & Johnson Vorrichtung und verfahren zur herstellung eines faserkissens
US4921659A (en) * 1987-09-22 1990-05-01 Chicopee Method of forming a fibrous web using a variable transverse webber
US4904439A (en) * 1988-07-18 1990-02-27 Johnson & Johnson Method of making a non-woven fiber web using a multi-headed ductless webber
US20020007169A1 (en) * 1996-12-06 2002-01-17 Weyerhaeuser Company Absorbent composite having improved surface dryness
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
WO2002088441A1 (fr) * 2001-04-26 2002-11-07 Thibeau Machine pour la fabrication d'un non-tisse par voie aeraulique, comportant une chambre de dispersion des fibres dont la paroi avant est poreuse en partie basse
EP1672110A1 (de) 2004-12-16 2006-06-21 Asselin-Thibeau Verfahren und Vorrichtung zum Transport eines Krempelvlies oder eines Vliesgewebe nach dem Airlaidverfahren
CN1789534B (zh) * 2004-12-16 2010-05-05 阿瑟兰-蒂博公司 传送无纺布的方法和装置

Also Published As

Publication number Publication date
DE1815021A1 (de) 1969-08-28
AT305095B (de) 1973-02-12
FR1598092A (de) 1970-06-29
GB1218226A (en) 1971-01-06
DE1815021B2 (de) 1974-06-06
DE1815021C3 (de) 1975-01-23
NL6818529A (de) 1969-07-22

Similar Documents

Publication Publication Date Title
US3512218A (en) Machine for forming random fiber webs
US3972092A (en) Machine for forming fiber webs
US2890497A (en) Machine for forming random fiber webs
US3918126A (en) Method and machine for forming random fiber webs
US2703441A (en) Machine for forming composite fiber webs
US3010161A (en) Method and means for producing mixed fiber suspensions in air and felts therefrom
US2648876A (en) Method and machine for producing unwoven fabrics
US3535187A (en) Apparatus for manufacturing nonwoven textile articles
US2460899A (en) Method of mat formation
GB1477520A (en) Method and apparatus for producing blended textile fibrous materials
US4534086A (en) Apparatus for making fibrous webs
US4583267A (en) Apparatus for making a fibrous web
US3567288A (en) Pneumatic fiber conveying system
US3435484A (en) Fiber distributing system
AU608867B2 (en) Multi-headed ductless webber
US3029477A (en) Automatic carding plant
US3755028A (en) Method for manufacturing non-woven textile articles
US2876500A (en) Machine for fiber cleaning
US3914822A (en) Machine for forming random fiber webs
US5093963A (en) Ductless webber
US5442836A (en) Apparatus for making a nonwoven web by sucking fibers from a carding drum onto a moving fiber collecting surface
JP4444449B2 (ja) 少なくとも１つの矩形状断面のほぼ垂直な中空筒を有する、綿塊からフリースを形成するための装置
US2071438A (en) Method of and means for producing slivers or ends of fibrous materials
US3680175A (en) Linear apparatus for the production of non-woven fabrics
US3766607A (en) Apparatus for transferring and compacting fiber material