US3914080A - Apparatus for the high speed production of non-woven fabrics - Google Patents

Apparatus for the high speed production of non-woven fabrics Download PDF

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Publication number
US3914080A
US3914080A US051967A US5196770A US3914080A US 3914080 A US3914080 A US 3914080A US 051967 A US051967 A US 051967A US 5196770 A US5196770 A US 5196770A US 3914080 A US3914080 A US 3914080A
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United States
Prior art keywords
belt
section
tubularized
nozzle means
nozzle
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
US051967A
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English (en)
Inventor
Ewald A Kamp
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Glad Products Co
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Priority to US051967A priority Critical patent/US3914080A/en
Priority to ZA713849A priority patent/ZA713849B/xx
Priority to CA116,380A priority patent/CA1045361A/en
Priority to CS4846A priority patent/CS166027B2/cs
Priority to CH970871A priority patent/CH596368B5/xx
Priority to CH970871D priority patent/CH970871A4/xx
Priority to SE7108547A priority patent/SE394897B/xx
Priority to PL1971149188A priority patent/PL82065B1/pl
Priority to AT571371A priority patent/AT352069B/de
Priority to CH1213672A priority patent/CH540371A/fr
Priority to GB3835973A priority patent/GB1357804A/en
Priority to IL37204A priority patent/IL37204A/en
Priority to GB3078171A priority patent/GB1357802A/en
Priority to NO02517/71*[A priority patent/NO129006B/no
Priority to GB4220872A priority patent/GB1357803A/en
Priority to JP46047745A priority patent/JPS5022635B1/ja
Priority to CH1472572A priority patent/CH536892A/fr
Priority to BE769381A priority patent/BE769381A/xx
Priority to DE19712132777 priority patent/DE2132777C3/de
Priority to FR7124176A priority patent/FR2097139B1/fr
Priority to NL7109112A priority patent/NL7109112A/xx
Priority to SU7101675815A priority patent/SU583766A3/ru
Priority to US380963A priority patent/US3882211A/en
Priority to AT771475A priority patent/AT344657B/de
Application granted granted Critical
Publication of US3914080A publication Critical patent/US3914080A/en
Assigned to FIRST BRANDS CORPORATION, 39 OLD RIDGEBURY RD., DANBURY, CT 06817 A CORP OF DE reassignment FIRST BRANDS CORPORATION, 39 OLD RIDGEBURY RD., DANBURY, CT 06817 A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE CORPORATION, A CORP OF NY
Assigned to MANUFACTURERS HANOVER TRUST COMPANY reassignment MANUFACTURERS HANOVER TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIRST BRANDS CORPORATION, A CORP OF DE
Assigned to CONNECTICUT NATONAL BANK, THE reassignment CONNECTICUT NATONAL BANK, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIRST BRANDS CORPORATION, A CORPORATION OF DE
Assigned to FIRST BRANDS CORPORATION reassignment FIRST BRANDS CORPORATION RELASE OF SECURITY INTEREST RECORDED AT REEL 4645 AND FRAME 280-363 ON 12-08-1986. Assignors: MANUFACTURERS HANOVER TRUST COMPANY
Assigned to CIT GROUP/SALES FINANCING, INC., CIT GROUP/EQUIPMENT FINANCING, INC., THE reassignment CIT GROUP/SALES FINANCING, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIRST BRANDS CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • ABSTRACT A method of making a non-woven fibrous web comprises providing a fluid stream, incorporating fibers in that stream, continuously directing the stream into a centrifugal flow, collecting the fibers from the flow as a substantially endless tubular web and flattening the web.
  • Apparatus for producing a non-woven fibrous web comprises a flexible, endless foraminous belt, fore and aft guide means for tubularizing and detubularizing a section of the belt, and an exhaust plenum surrounding a portion of the tubularized section to apply suction to the surface of the belt.
  • a nozzle arrangement is positioned to direct a suspension of fibers toward the tubularized section of the belt.
  • This invention relates generally to the manufacture of non-woven fabrics and more particularly to the manufacture of such products by substantially dry procedures.
  • carding machines operate too slowly, require relatively long staple fiber and are restricted in practical width.
  • Rando-Webber machines are capable of handling inexpensive, short-staple fibers but are limited in width.
  • an important object of the present invention is to provide apparatus for producing a non-woven fibrous web at high speeds and in substantial width.
  • a more general object of the invention is to provide new and improved apparatus and methods for producing a non-woven fibrous web.
  • FIG. 1 is a diagramatic perspective view of apparatus embodying the principles of the present invention
  • FIG. 2 is a view similar to the showing of FIG. 1 but with the suction plenum and other equipmenmt removed to show the tubularization of the fiber collecting belt;
  • FIG. 3 is a view similar to the showing of FIG. 1 but with the suction plenum removed and a portion of the belt broken away to show the fiber spray nozzle arrangement, the binder spray nozzle and the complementary air flow system;
  • FIG. 4 is an elevational view of the head pulley used in the apparatus of FIG. 1;
  • FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. 4 with the fiber-collecting belt removed;
  • FIG. 6 is an elevational view of the tail pulley used in the apparatus of FIG. 1;
  • FIG. 7 is an enlarged cross-sectional view taken through the exhaust plenum
  • FIG. 8 is a further enlarged cross-sectional view showing the channels used in tubularizing the travelling belt
  • FIG. 9 is an enlarged fragmentary view showing the interior of the exhaust plenum and details of its construction.
  • FIG. 10 is a fragmentary perspective view showing details of the construction of the travelling belt
  • FIG. 11 is an enlarged elevational view of the binder spray nozzle used in the apparatus of FIG. 1;
  • FIG. 12 is a central cross-sectional view of the binder spray nozzle of FIG. 11;
  • FIG. 13 is an enlarged perspective view of a part of the fiber distributing unit used in the apparatus of FIG.
  • FIG. 14 is an enlarged longitudinal sectional view taken through the exhaust plenum
  • FIG. 15 is a diagramatic view relating to the process of the present invention.
  • FIG. 16 is a view similar to the showing of FIG. 14 but illustrating a modified embodiment of the invention.
  • FIG. 17 is a cross-sectional view taken substantially along the line 17-17 FIG. 16;
  • FIG. 18 is a fragmentary elevational view of a further modified embodiment.
  • the present invention contemplates injecting a fiberair suspension onto the inside of a porous tube formed by curling a section of a foraminous belt and subsequently flattening out the belt so that the formed and finished web may be lifted off and transferred to subsequent processing stations.
  • This arrangement facilitates uniform distribution of the fibers and promotes application of bonding agents in liquid form.
  • apparatus for producing a non-woven fibrous web is indicated by the reference numeral 20; and the apparatus 20 broadly comprises a flexible, endless foraminous belt 22, a guide unit 24, a fiber supply arrangement 26 and an air exhaust plenum system 28.
  • a drive arrangement which will be described more fully hereinafter, causes continuous, longitudinal movement of the belt 22 in the direction of arrow 30 and between a head pulley 32 and a tail pulley 34.
  • the guide unit 24 includes a fore section 36 which tubularizes the foraminous belt and an aft section 38 which de-tubularizes the belt.
  • the guide unit 24 additionally includes an intermediate guide section 40 which corresponds with the tubularized length of the belt.
  • the edge strips 46 are provided with mutually interengageable aligning means comprising a pair of spaced, resiliently convergible blades 48 fashioned on one edge strip and a mating groove 50 fashioned in the opposite edge strip. Upon the two edge strips being brought forcibly together, the blades 48 wedge into the groove 50 and provide alignment and a seal.
  • Carrier elements are mounted on the edge strips 46 for use in directing the foraminous belt in its tubularizing and detubularizing movements.
  • button rollers 52 are affixed to the edge strips 46 at spaced intervals by means of a bushing 54 and a rivet 56.
  • Reinforcing bands 58 and 60 are situated within the edge strips on opposite sides of the belt 22 in the vicinity of the rivets 56.
  • the botton rollers 52 travel in inverted channel members or rails 62 forming the respective sections of the guide unit.
  • gear teeth 64 are fashioned on appropriate surfaces of the flexible edge strips 46; and turning to FIG. 6, the tail pulley 34 includes a pair of spur gears 66 which meshably engage the gear teeth of the respective edge strips 46.
  • the head pulley 32 includes a pair of spur gears 68 which mesh with the gear teeth 64.
  • Power is supplied to the drive arrangement by means of a sprocket 70 and a drive chain 72, sprocket 70 being attached to the head pulley 32 by means of a shaft 74 and the chain 72 being drivingly connected with a suitable motor, not shown.
  • head pulley 32 comprises a perforated metal drum 76 that is arranged coaxially with an air duct 78.
  • the duct 78 includes a central cylindrical portion and a radially extending vent portion 80 which communicates the central portion with the perforated surface of drum 76. If desired, the duct 78 may be arranged to be rotated to position the vent portion 80 for maximum effectiveness.
  • the plenum 28 comprises an outer shell 82 and a suitable number of suction lines 84.
  • the exhaust plenum 28 additionally comprises a cylindrical perforated inner shell 86 which is spaced apart from the outer shell 82 by ribs 88.
  • rectangular spacer bars 90 with rounded, smoothly polished edges are secured to the inner shell 86 to extend radially inwardly toward the belt 22.
  • the bars 90 are hardened or hard-coated. As is best seen in FIG. 9, the spacer bars 90 are situated at a shallow angle with respect to the direction of belt travel 30 in order to avoid blank spots in the fiber deposit; and the bars 90 on opposite sides of the shell 86 are oppositely angled to avoid inducing rotation of the belt.
  • a conduit 92 delivers a suspension of suitably opened fibers to the tubularized section of the foraminous belt.
  • Numerous types of fibers may be employed in the invention, such as wood, synthetic cellulose, cotton, synthetic polymers, asbestos and glass; and these fibers are opened to the point where each fiber is detached from the others and becomes a separate entity.
  • Long staple can be fluffed up and separated by well known devices such as opening pickers, cards and garnetts while wood cellulose is generally provided in sheet form that can be fluffed up by equipment such as hammer mills, special cards arranged for that purpose, and disc grinders.
  • the fibers are mixed with flowing air delivered by a fan 94 shown in FIG. 15.
  • the fiber supply conduit 92 terminates at the tubularized section of the foraminous belt in a nozzle arrangement 96 which releases the suspension into a tapering angular chamber defined between an upstream conical member 98 and a downstream conical member 100.
  • a series of deflector vanes 102 are mounted between the conical members 98 and 100 to produce a swirl flow in a substantially tangential direction along the inside of the foraminous belt. The shaping of the vanes 102 is shown in greater detail in FIG. 13.
  • a binder supply conduit 104 for liquid binder material is arranged coaxially with the fiber sup- 1 ply conduit 92.
  • a rotating nozzle ring 106 carries a suitable number .of radially disposed spray nozzles 108 and surrounds a stationary ring 110.
  • Liquid binder material flows from the conduit 104 to a rotating toroidal manifold 112 through a suitable number of flaring pipes 114 which also serve as the mechanical connection between ring 106 and a swivel joint 116.
  • a suitably energized drive motor 118 is provided with a spur gear 120 on its output shaft, and the spur gear 120 meshes with a second spur gear 122 mounted on the swivel joint 116.
  • the swivel joint 116 includes a rotary liquid cou-. pling to make a leak-tight seal between the conduit 104 and the pipes 114.
  • each of the binder spray nozzles 108 communicates with the manifold 112 through a stub conduit 124, and a shut-off needle 126 is slidably disposed in a nozzle bore intercepting the conduit 124 at right angles thereto.
  • the needle 126 biases the needle generally away from the stub conduit.
  • the needle 126 terminates in the radially inward direction in a heel plate 130 which is positioned to engage a stationary cam 132 on the ring 110 once each revolution.
  • the nozzles are shut off periodi-. cally; and this has been found to create surge loads having a tendency to clear the nozzles of incipient coagus lants.
  • the narrow region where no spray occurs is advantageously arranged to coincide with the united edge strips 46 in the tubularized section of the foraminous belt, shown for example in FIG. 7. It will be appreciated that no substantial fiber deposit occurs on these edge strips because there is no suction behind them.
  • the fibrous web is formed initially with a longitudinal discontinuity which permits flattening without cutting.
  • the exhaust plenum 28 is advantageously divided into three separate sections by means of annular bulkheads 134 and 136.
  • the leading section becomes a fiber air returnythe intermediate section, a binder air return; and the trailing section, a dryer air return.
  • an imperforate tubular chamber 138 desirably penetrates the first section of the exhaust plenum so that an air stream may be injected generally in the direction of belt travel.
  • the upstream section of the exhaust plenum is advantageously penetrated by a tubular duct 140 so that an air stream may be injected in the downstream direction generally op posite the stream delivered through the tube 138.
  • a diffuser unit 142 is secured to the bulkhead 136 in alignment with the duct 140 to direct the air stream in a gen erally outward direction.
  • the two air streams that are. injected into the intermediate exhaust plenum section cooperate both in directing binder material awayfrom.
  • an annular chamber 144 shown in FIG. 14, is arranged to receive a supply of heated air from a fan 146 and heaters 148, shown in FIG. 15, the annular chamber 144 being defined by a perforated metal tube 150 and the duct 140. Electromagnetic drying may be used in place of heated air, and the cylindrical shape of the tubularized section of belt 22 presents an ideal configuration for radio frequency drying.
  • fibers are introduced into the inlet fiber supply conduit 92 by suspending them uniformly in a moving air stream.
  • the resultant suspension is a function of the nature of the fiber or fibers involved, a high density, thick fiber generally requiring more air than a light, thin and irregularly shaped fiber.
  • the suspension has a density of not less than 30 cubic feet of air per pound of fiber, preferably between 50 and 200 cubic feet of air per pound of fiber.
  • the velocity to which the suspension is adjusted is also a function of fiber characteristics.
  • the minimum velocity to maintain the fibers in suspension and prevent any undesirable degree of fiber agglomeration is approximately 1,500 feet per minute and preferably in the range of about 3,000 to about 5,000 feet per minute.
  • the suspension is directed toward the moving foraminous belt 22 is a centrifugal flow by the nozzle arrangement 96, the suspension being volumetrically expanded in a substantially uniform manner until its average velocity at right angles through the belt is less than about 1,000 feet per minute and preferably less than about 300 feet per minute.
  • the vanes 102 act to direct the suspension in successive streams whereby to provide commingling layers of deposited fibers.
  • Suction from the exhaust plenum 28 cooperates in the volumetric expansion of the suspension flow and promotes uniformity in the fiber deposit by tending to draw more fiber toward thin areas than those where the deposit is thicker.
  • Belt speed, suspension density and suspension velocity determine the weight of the deposited web.
  • binder is sprayed onto the resultant web by means of the spinning nozzles 108 while the web and the foraminous belt are still in tubularized form, air assist from both the upstream and the downstream direction promoting rapid efficient binder deposition. Thereafter, and in continued tubularization of the foraminous belt, heated air from the fan 146 is delivered to the dryer section through the perforated drum 150 for curing the binder material.
  • the foraminous belt 22 After exiting from the final section of the exhaust plenum 28, the foraminous belt 22 is de-tubularized by the channels 62 of aft guide section 38, and the bonded fibrous web is lifted from the head pulley 32 by air from the duct 78, as is shown in FIG. 3, for such finishing operations as additional bonding, coating, printing and embossing. After it has passed from the head pulley 32, the belt 22 may be backwashed with air, scrubbed with solvent, brushed and dried, during its return trip to tail pulley 34.
  • FIGS. 16 and 17 While a particular embodiment of the invention has been thus far shown and described, it should be understood, of course, that the invention is not limited thereto since many modifications may be made.
  • one such modified form of the invention has been illustrated in FIGS. 16 and 17. Since many of the elements of this modified embodiment are similar to those shown and described with reference to FIGS. l-l5, like parts have been identified with like numerals, the suffix letter a being employed to distinguish those elements associated with the embodiment of FIGS. 16 and 17.
  • FIGS. 16 and 17 The embodiment of FIGS. 16 and 17 is distinguished by the manner in which the fiber suspension is directed toward the foraminous belt. More specifically, a plurality of fiber dispensing nozzles are focused toward the foraminous belt and are continuously directed in a path of movement generally away from the point of instantaneous impingment at the belt. Structurally, a nozzle unit 152 is disposed within the tubularized section of the foraminous belt coaxially therewith, the nozzle unit 152 being provided with an upstream collar 154 which fits rotatably over a fiber delivery conduit 156. The collar 154 supports the nozzle unit 152 from the conduit 158 and establishes an end seal therewith.
  • motor 118a may drive both the nozzle unit 152 and the rotary binder spray arrangement
  • motor 118a is displaced upstream from the nozzle unit 152; and the swivel joint 116 is replaced by a simple support ring which is connected to a drive sleeve 158.
  • a spur gear 160 is mounted on the sleeve 158 to be drivingly coupled to the motor 118a through a meshing pinion gear 162.
  • Rotary motion is imparted to the nozzle unit 152 by means of a pinion gear 164 which meshes with the pinion gear 162 and which powers the nozzle unit by means of a ring gear 166 fashioned on the nozzle unit and a pinion gear 168 carried on a common, journaled shaft 170.
  • the nozzle unit 152 is provided with a suitable number of discharge orifices 172 which open to the delivery conduit 156 through respective, arcuate channels 174.
  • An aerodynamic shroud 176 is located upstream from the drive motor 118a to minimize disturbances in the movement which might otherwise be caused by the drive arrangement; and in order to promote uniform volumetric expansion of the suspension, the nozzle unit 152 is rotated in the direction of arrow 178 generally in a direction opposite to the tangential velocity vector of the individual exiting streams.
  • Spin rates on the order of 1,500 rpm. have proved useful in a specific embodiment of the invention where the tubularized section of the belt took a diameter of 1 foot. Slower spin rates have proved useful with larger diameter sections.
  • Air supply for the binder is provided exclusively from the tubular conduit a.
  • the discharge from nozzle unit 152 is substantially radial whereas the discharge from nozzle arrangement 96 is more nearly a downstream divergent, hollow, conical flow.
  • the apparatus of FIGS. 16 and 17 is constructed and operates similarly to the apparatus 6f FIGS. l-15.
  • FIG. 18 A modified form of rotating discharge member is shown in FIG. 18 where slots 1721: of nozzle unit 152b are flared in the upstream direction in order to level fiber discharge, the general direction of air travel being shown by arrow 180.
  • An electrostatic field may be included in the apparatus of the invention for enhancing fiber deposit and is of special advantage in that it will permit electrostatic flocking at high machine speed and accomplish flocking with long staple fibers.
  • Apparatus for producing a non-woven fibrous sheet-like web comprising: a flexible, endless foraminous belt; drive means for causing continuous longitudinal movement of said belt; fore and aft guide means engaging said belt for tubularizing and de-tubularizing a section of said belt; supply means for providing a suspension of fibers in air; nozzle means connected to said supply means and positioned intermediate said guide means within the tubularized section of said belt for directing a flow of said fibers toward the interior surface of said tubularized section of said belt; and exhaust means mounted in substantially coaxial relationship with at least a portion of the tubularized section of said belt in cooperative relationship with said nozzle means to apply suction to the exterior surface of said belt for promoting rapid deposit of fibers on said belt in the form of a substantially hollow tubular web, said nozzle means including a plurality of orifices which are focused toward said belt, said apparatus further including drive means for rotating said nozzle means in a path of movement generally away from the point of instantaneous impingement at said belt.
  • said belt comprises a fabric of first and second interwoven strands, said first strands being disposed at a first angle with respect to the longitudinal axis of said belt and said second strands being disposed at a second angle with respect to said axis and generally across said first strands, whereby to permit said belt to flex internally upon executing tubularization movements.
  • said belt comprises a central permeable band and flexible edge strip secured to the opposite edges of said band.
  • said guide means include a pair of channel members and wherein said belt further includes carrier elements mounted on said edge strips and rollably engaging said channel members.
  • each of said edge strips includes a plurality of gear teeth and wherein said drive means includes gear means meshing with said gear teeth.
  • said belt includes carrier members mounted at the opposite edges thereof and wherein said guide means includes a pair of channel members transportably engaging said carrier members.
  • dryer means encircling said tubularized belt section downstream from said binder nozzle means in the direction of belt travel in the tubularized section.
  • Apparatus according to claim 9 which further comprises air supply means disposed downstream from said fiber delivery nozzle means in the direction of belt travel in the tubularized section and including an outlet positioned to direct a stream of air towardssaid binder nozzle means whereby to promote uniform distribution of binder material.
  • Apparatus according to claim 11 which further comprises a second air supply means disposed vupstream from said fiber delivery nozzle means in the direction of belt travel in the tubularized section and in- I cluding an outlet positioned to direct a stream of air toward said binder nozzle means whereby to promote uniform distribution of binder material.
  • Apparatus for producing a non-woven fibrous web comprising: a flexible, endless foraminous belt; drive means for causing continuous, longitudinal movement of said belt; supply means forproviding a suspension of fibers in air; nozzle means connected to said supply means and including a plurality of arcuately spaced orifices focused toward said belt for providing overlapping discharge patterns; and means for rotating said nozzle means in a path of movement generally away from the point of instantaneous impingement at such belt; drive means for causing continuous.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Closures For Containers (AREA)
  • Woven Fabrics (AREA)
US051967A 1970-07-02 1970-07-02 Apparatus for the high speed production of non-woven fabrics Expired - Lifetime US3914080A (en)

Priority Applications (24)

Application Number Priority Date Filing Date Title
US051967A US3914080A (en) 1970-07-02 1970-07-02 Apparatus for the high speed production of non-woven fabrics
ZA713849A ZA713849B (en) 1970-07-02 1971-06-14 Apparatus and method for the high speed production of non-woven fabrics
CA116,380A CA1045361A (en) 1970-07-02 1971-06-23 Apparatus and method for the high speed production of non-woven fabrics
DE19712132777 DE2132777C3 (de) 1970-07-02 1971-07-01 Verfahren zur Herstellung eines Wirrfaservliesstoffs und Vorrichtung zur Durchführung des Verfahrens
CH970871D CH970871A4 (de) 1970-07-02 1971-07-01
SE7108547A SE394897B (sv) 1970-07-02 1971-07-01 Sett och apparat for tillverkning av fibertyg
PL1971149188A PL82065B1 (de) 1970-07-02 1971-07-01
AT571371A AT352069B (de) 1970-07-02 1971-07-01 Verfahren und vorrichtung zur herstellung eines faservliesstoffes
CH1213672A CH540371A (fr) 1970-07-02 1971-07-01 Procédé pour former une bande de particules agglomérées
GB3835973A GB1357804A (en) 1970-07-02 1971-07-01 Apparatus for the manufacture of non-woven fabrics
IL37204A IL37204A (en) 1970-07-02 1971-07-01 A device and method for the production of non-woven fabrics at high speed
GB3078171A GB1357802A (en) 1970-07-02 1971-07-01 Method for the manufacture of non-woven webs
NO02517/71*[A NO129006B (de) 1970-07-02 1971-07-01
GB4220872A GB1357803A (en) 1970-07-02 1971-07-01 Apparatus for the manufacture of non-woven fabrics
CS4846A CS166027B2 (de) 1970-07-02 1971-07-01
CH1472572A CH536892A (fr) 1970-07-02 1971-07-01 Procédé pour former une bande fibreuse non tissée
BE769381A BE769381A (fr) 1970-07-02 1971-07-01 Appareil et procede pour la production a grande vitesse de tissus non tisses
CH970871A CH596368B5 (de) 1970-07-02 1971-07-01
FR7124176A FR2097139B1 (de) 1970-07-02 1971-07-01
NL7109112A NL7109112A (de) 1970-07-02 1971-07-01
JP46047745A JPS5022635B1 (de) 1970-07-02 1971-07-01
SU7101675815A SU583766A3 (ru) 1970-07-02 1971-09-24 Установка дл изготовлени нетканного волокнистого материала
US380963A US3882211A (en) 1970-07-02 1973-07-20 Method for the high speed production of non-woven fabrics
AT771475A AT344657B (de) 1970-07-02 1975-10-09 Verfahren und vorrichtung zum herstellen eines faservliesstoffes

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US051967A US3914080A (en) 1970-07-02 1970-07-02 Apparatus for the high speed production of non-woven fabrics

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US3914080A true US3914080A (en) 1975-10-21

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US051967A Expired - Lifetime US3914080A (en) 1970-07-02 1970-07-02 Apparatus for the high speed production of non-woven fabrics
US380963A Expired - Lifetime US3882211A (en) 1970-07-02 1973-07-20 Method for the high speed production of non-woven fabrics

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Application Number Title Priority Date Filing Date
US380963A Expired - Lifetime US3882211A (en) 1970-07-02 1973-07-20 Method for the high speed production of non-woven fabrics

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US (2) US3914080A (de)
JP (1) JPS5022635B1 (de)
AT (2) AT352069B (de)
BE (1) BE769381A (de)
CA (1) CA1045361A (de)
CH (4) CH536892A (de)
CS (1) CS166027B2 (de)
FR (1) FR2097139B1 (de)
GB (3) GB1357803A (de)
IL (1) IL37204A (de)
NL (1) NL7109112A (de)
NO (1) NO129006B (de)
PL (1) PL82065B1 (de)
SE (1) SE394897B (de)
SU (1) SU583766A3 (de)
ZA (1) ZA713849B (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032274A (en) * 1974-01-25 1977-06-28 Union Carbide Corporation Linear apparatus for high speed production of air-laid non-woven webs
US4842749A (en) * 1988-09-30 1989-06-27 Cox Clyde H Inversion tube press
US4921659A (en) * 1987-09-22 1990-05-01 Chicopee Method of forming a fibrous web using a variable transverse webber
US5052545A (en) * 1989-10-31 1991-10-01 Hokoku Kogyo Co., Ltd. Apparatus for conveying grain
US5445768A (en) * 1992-12-10 1995-08-29 Firma Carl Freudenberg Method and device for manufacturing a spun fleece
WO2000061354A1 (en) * 1999-04-09 2000-10-19 Bki Holding Corporation Distribution unit for dry forming of web material
US6146540A (en) * 1998-06-24 2000-11-14 Omega Co., Ltd. Dehydration of sludge by injecting sludge into a sequentially connected series of permeable bags and then squeezing the bags
US6555013B2 (en) 2000-05-08 2003-04-29 Omega Co., Ltd. Treatment method for things like sludge and treatment apparatus
US6726461B2 (en) 1999-05-27 2004-04-27 Bki Holding Corporation Screen pipe for dry forming web material
US20040124565A1 (en) * 2002-12-26 2004-07-01 Schiffer Daniel Kenneth Method for treating fibrous web materials
US20050244639A1 (en) * 2004-04-01 2005-11-03 Marin Robert A Rotary process for forming uniform material
US20060141084A1 (en) * 2003-04-03 2006-06-29 Armantrout Jack E Rotary process for forming uniform material
US20070202764A1 (en) * 2005-04-01 2007-08-30 Marin Robert A Rotary process for forming uniform material
US20070292547A1 (en) * 2004-08-05 2007-12-20 Christensen Kenn M Former Head With Rotary Drum
US7314141B1 (en) * 1998-08-06 2008-01-01 Paul Hedley Day Folding belt filter
US20100159199A1 (en) * 2007-06-26 2010-06-24 Gilanberry Trading Ltd. Apparatus and method for continuously forming an element made of expanded plastic material and construction element
WO2012120324A1 (en) * 2011-03-10 2012-09-13 Ocv Intellectual Capital, Llc Apparatus and method for producing a fibrous product

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JPS5474486U (de) * 1977-11-04 1979-05-26
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US4564486A (en) * 1984-03-19 1986-01-14 Owens-Corning Fiberglas Corporation Curing fibrous mineral material
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GB2203982A (en) * 1987-04-22 1988-11-02 Robert Strachan A granular filled and woven fibre or mat sheathed pultrusion
US4952128A (en) * 1987-09-22 1990-08-28 Chicopee Transverse web forming apparatus
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DE4117252A1 (de) * 1991-05-27 1992-12-03 Winkler Duennebier Kg Masch Vorrichtung zum aufloesen von flockenverklumpungen
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Cited By (29)

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US4032274A (en) * 1974-01-25 1977-06-28 Union Carbide Corporation Linear apparatus for high speed production of air-laid non-woven webs
US4921659A (en) * 1987-09-22 1990-05-01 Chicopee Method of forming a fibrous web using a variable transverse webber
US4842749A (en) * 1988-09-30 1989-06-27 Cox Clyde H Inversion tube press
WO1990003211A1 (en) * 1988-09-30 1990-04-05 Cox Clyde H Inversion tube press
US5052545A (en) * 1989-10-31 1991-10-01 Hokoku Kogyo Co., Ltd. Apparatus for conveying grain
US5445768A (en) * 1992-12-10 1995-08-29 Firma Carl Freudenberg Method and device for manufacturing a spun fleece
US6146540A (en) * 1998-06-24 2000-11-14 Omega Co., Ltd. Dehydration of sludge by injecting sludge into a sequentially connected series of permeable bags and then squeezing the bags
US7314141B1 (en) * 1998-08-06 2008-01-01 Paul Hedley Day Folding belt filter
WO2000061354A1 (en) * 1999-04-09 2000-10-19 Bki Holding Corporation Distribution unit for dry forming of web material
EP1177089A4 (de) * 1999-04-09 2002-08-07 Bki Holding Corp Verteilungs-einrichtung zum trocken-formen von flächigen faser-produkten
EP1177089A1 (de) * 1999-04-09 2002-02-06 BKI Holding Corporation Verteilungs-einrichtung zum trocken-formen von flächigen faser-produkten
US6726461B2 (en) 1999-05-27 2004-04-27 Bki Holding Corporation Screen pipe for dry forming web material
US6555013B2 (en) 2000-05-08 2003-04-29 Omega Co., Ltd. Treatment method for things like sludge and treatment apparatus
US7001562B2 (en) 2002-12-26 2006-02-21 Kimberly Clark Worldwide, Inc. Method for treating fibrous web materials
US20040124565A1 (en) * 2002-12-26 2004-07-01 Schiffer Daniel Kenneth Method for treating fibrous web materials
US7118698B2 (en) 2003-04-03 2006-10-10 E. I. Du Pont De Nemours And Company Rotary process for forming uniform material
EP2264230A2 (de) 2003-04-03 2010-12-22 E. I. du Pont de Nemours and Company Rotationsverfahren zur Herstellung von gleichmässigem Material
US20060154549A1 (en) * 2003-04-03 2006-07-13 Armantrout Jack E Rotary process for forming uniform material
US7786034B2 (en) 2003-04-03 2010-08-31 E.I. Du Pont De Nemours And Company Rotary process for forming uniform material
US7621731B2 (en) 2003-04-03 2009-11-24 E.I. Du Pont De Nemours And Company Rotary process for forming uniform material
US20060141084A1 (en) * 2003-04-03 2006-06-29 Armantrout Jack E Rotary process for forming uniform material
US7582240B2 (en) 2004-04-01 2009-09-01 E. I. Du Pont De Nemours And Company Rotary process for forming uniform material
US20050244639A1 (en) * 2004-04-01 2005-11-03 Marin Robert A Rotary process for forming uniform material
US20070292547A1 (en) * 2004-08-05 2007-12-20 Christensen Kenn M Former Head With Rotary Drum
US20070202764A1 (en) * 2005-04-01 2007-08-30 Marin Robert A Rotary process for forming uniform material
US20100159199A1 (en) * 2007-06-26 2010-06-24 Gilanberry Trading Ltd. Apparatus and method for continuously forming an element made of expanded plastic material and construction element
US8936453B2 (en) * 2007-06-26 2015-01-20 Gilanberry Trading Ltd. Apparatus and method for continuously forming an element made of expanded plastic material and construction element
WO2012120324A1 (en) * 2011-03-10 2012-09-13 Ocv Intellectual Capital, Llc Apparatus and method for producing a fibrous product
US9353470B2 (en) 2011-03-10 2016-05-31 Ocv Intellectual Capital, Llc Apparatus and method for producing a fibrous product

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Publication number Publication date
CA1045361A (en) 1979-01-02
FR2097139B1 (de) 1974-05-31
JPS5022635B1 (de) 1975-08-01
SU583766A3 (ru) 1977-12-05
GB1357803A (en) 1974-06-26
CS166027B2 (de) 1976-01-29
CH596368B5 (de) 1978-03-15
AT352069B (de) 1979-08-27
CH540371A (fr) 1973-09-28
CH970871A4 (de) 1977-02-28
US3882211A (en) 1975-05-06
NL7109112A (de) 1972-01-04
DE2132777B2 (de) 1975-09-25
ZA713849B (en) 1972-02-23
BE769381A (fr) 1972-01-03
ATA571371A (de) 1979-02-15
FR2097139A1 (de) 1972-03-03
SE394897B (sv) 1977-07-18
GB1357804A (en) 1974-06-26
IL37204A (en) 1974-12-31
GB1357802A (en) 1974-06-26
NO129006B (de) 1974-02-11
IL37204A0 (en) 1971-10-20
AT344657B (de) 1978-08-10
PL82065B1 (de) 1975-10-31
DE2132777A1 (de) 1972-03-09
CH536892A (fr) 1973-06-29
ATA771475A (de) 1977-12-15

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