US2477675A - Nonwoven fabric and method for making same - Google Patents

Nonwoven fabric and method for making same Download PDF

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Publication number
US2477675A
US2477675A US786662A US78666247A US2477675A US 2477675 A US2477675 A US 2477675A US 786662 A US786662 A US 786662A US 78666247 A US78666247 A US 78666247A US 2477675 A US2477675 A US 2477675A
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US
United States
Prior art keywords
web
screen
fibers
fibres
duct
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
US786662A
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English (en)
Inventor
Charles C Wilson
Herschel H Cudd
Denzil V Probasco
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.)
West Point Manufacturing Co
Original Assignee
West Point Manufacturing Co
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 West Point Manufacturing Co filed Critical West Point Manufacturing Co
Priority to US786662A priority Critical patent/US2477675A/en
Priority to GB20232/48A priority patent/GB659088A/en
Priority to US80502A priority patent/US2478148A/en
Priority to FR982788D priority patent/FR982788A/fr
Priority to CH290553D priority patent/CH290553A/fr
Priority to NL145430A priority patent/NL72169C/xx
Priority to BE488099D priority patent/BE488099A/xx
Application granted granted Critical
Publication of US2477675A publication Critical patent/US2477675A/en
Priority to US185590A priority patent/US2648876A/en
Priority to FR63214D priority patent/FR63214E/fr
Priority to GB20738/51A priority patent/GB703574A/en
Priority to BE505773D priority patent/BE505773A/xx
Priority to NL163958A priority patent/NL80534C/xx
Priority to CH302111D priority patent/CH302111A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—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

  • This invention relates to unwoven fabrics; a method of forming such fabrics, and equipment for practicing the method and producing the fabrics.
  • Fabrics of this type are formed by depositing fibers drawn from any suitable source, such as a hopper, a card, or a dofier, in random fashion on a suitable foraminous receiving member in closely interlaced relation, the object being to secure textural uniformity and strength in all directions. Satisfactory results cannot, however, be obtained without particular attention to the removal of the fibers from the source; their distribution on the receiving member, and, as it is preferable in many cases, subjecting the web thus formed to a bonding treatment to stabilize the fibers and produce a web of proper density, uniformity, and stability, insofar as fiber relations are concerned.
  • any suitable source such as a hopper, a card, or a dofier
  • the fibers In unwoven webs of the prior art, the fibers have been in some instances so laid as to parallel them either warpwise or fillingwise, resulting in a fabric of unequal strength in different directions as distinguished from the fabric of the present invention, in which the fibers are disposed in uniformly random fashion, free from knots or tangles, so that textural uniformity in all directions results.
  • the speed of the fiber carrying instrumentality which, in the present disclosure, is a doffer, must be considerably increased over the normal speeds in equipment of this kind as heretofore developed, the reason for this increased speed being that the fibers will be more completely and uniformly separated on the dofier and the knots and tangles straightened out, so that delivery from the fiber-carrying instrumentality to the fiber-receiving and web-forming instrumentalities results in a web of more uniform density and strength than under the slow speed equipment heretofore used.
  • a fiber transfer duct which leads to a movable fiber receiving member, here shown as a screen cylinder, upon which the fibers are laid in random fashion and in losely matted relation.
  • the thickness of the web following the method and using the equipment hereinafter described, may be readily varied by regulating the speed of the movable fiber-receiving members so as to permit greater or less amounts of fiber to be deposited in a given period of time.
  • the width of the webs formed on the receiving surface may be varied so as to form a web of a width equal to the full length of the fiber receiving member, or fibers may be deposited on the receiving member in less than the full length of that member so as to form narrow webs or slivers.
  • the present disclosure shows the removal of fibers directly from a dofier by air currents, the dotfer being supplied in the usual manner from a card, but it will be understood that the removal of the fibers may be made directly from the card cylinder or other suitable source without the interposition of a dofier if desired.
  • Figure 1 is a view in side elevation showing the feed-in roller, the card, the dofier, the duct for removing the fiberfrom the doffer, and the fiberreceiving and web-forming screen.
  • Figure 2 is a sectional View of the equipment shown in Figure 1 with the web bonding instrumentalities and the web-drying equipment added.
  • Figure 3 is a view in plan showing the dofier, the duct,.the fiber-receiving screen, the spraying chamber, and the web-receiving roller, the driving gears for operating the parts being shown.
  • Figure 4 is an enlarged detail view, substantially on the line 4--4 of Figure 3, showing a portion of the dofier, the air duct which removes the fibers from the doifer, and the screen cylinder to which the fibers are delivered and on which the web is formed.
  • Figure 5 is a longitudinal sectional view of the web-forming screen on substantially the line 5-5 of Figure 4.
  • Figure 6 is a cross sectional view on substantially the line 6-4 of Figure 5.
  • Figure 7 is a detail view showing the end of the screen housing. 7
  • Figure 8 is a detail view substantially on the line 8--8 of Figure 4.
  • Figure 9 is a sectional view substantially on the line 99 of Fi ure 4.
  • Figure 10 is a view substantially on the line Ill-Ill of Figure 4.
  • Figure 11 is a detail view substantially on the line ll-H of Figure 9.
  • the frame 10 of any suitable or usual construction, carries the lap H, the feed roller l2, the taker-in I6, and the card cylinder H, as in the usual carding engine cnstructi0n.
  • the frame 10 carries the lap H, the feed roller l2, the taker-in I6, and the card cylinder H, as in the usual carding engine cnstructi0n.
  • These parts are all driven from any suitable source of power, a motor l8 being here shown from which power is supplied to drive the various instrumentalities through suitable belting and gears. This being the usual construction of carding engines, further detailed description of it is not necessary.
  • Adjacent the card cylinder I1 is a dofi'er 20, this doffer being driven from the card cylinder by means of the cross belt 2
  • the doifer rotates at a speed which is normally from 3 to 18 R. P; M., thus producing an attenuation or draft from 90 to 140 on the stock, with draft being defined as the peripheral speed of the clutter divided by the peripheral speed of the feed-in roll.
  • the speed of the doffer must be higher relative to the speed of the feed-in roll and the card cylinder, and drafts from 500 to 1500 are necessary, a mean of 980 having been found to be a satisfactory draft, although it will be understood that the draft may be varied to some extent from the preferable mean.
  • the card cylinder deposits the fibers on the doffer in a completely separated condition with each fiber being separate from the others and not gathered together in groups, bunches, or clumps of many fibers as are ordinarily present in equipment of this charcter when low speed dofling instrumentalities are used, so the fibers are laid on the doffer in an evenly distributed, well separated manner.
  • a fiber transfer air duct 25 On the side of the doifer opposite its contact point with the card is provided a fiber transfer air duct 25, preferably of uniform dimension throughout its length, the doifer end of the duct 25 being placed in close relation to the teeth of the dofier and preferably the duct 25 will be slightly above the horizontal center of the doifer roll, as shown in Figure 2. It is desirable that the duct 25 which constitutes a confined uninterrupted path be of equal area in cross section throughout its length in order that there may be a uniform and even flow of air and fiber through the duct and turbulence caused by cross currents or swirls which might affect proper transmission of the fibers through the duct if it was of varying cross section, are avoided.
  • the duct 25 may be provided, preferably on its upper side, with an air inlet 26, which inlet may be regulated by means of a gate 21 adjusted in any suitable manner as by the adjusting screw 28, so as to vary the size of the inlet 26 as may be desired.
  • the duct 25 may be constructed in any suitable manner and is supported by means of a frame 29 secured to supporting side plates 30 mounted at one end on the dofler frame and at the other end on the screen housing, presently to be described.
  • the duct supporting frame 29 may be provided with transparent panels 3
  • the delivery end of the duct 23 passes through a housing 32 having upper and lower sections in which is mounted a foraminous receiving surface, here shown as a revolving cylindrical screen 33 to which the duct delivers, the screen 33 being mounted to revolve on a fixed shaft 34.
  • Screen 33 is driven by a pinion 35 carried on the shaft of gear 36, which gear 38 engages gear teeth on the screen cylinder, as shown in Figure 1.
  • Gear 36 is driven by the gear 31 on pulley 38 belted by belt 39 to a gear assembly 40 driven from the motor 4!.
  • the gear assembly 40 is made up of a gear box having provision for interchanging the gears to vary speeds in the usual manner of changeable speed gear boxes.
  • a fixed shield 42 supported by shaft 34 and having an air-receiving opening 43 in line with the delivery end of the duct 25, as shown in Figure 4, and through which opening 43 the blast of air passes after it has deposited the fibers on the screen 33.
  • the fixed shield 42 prevents any disturbance of the web laid upon the screen, the air being drawn out of the shield through exhaust connections 44 which open at their upper ends into the shield and the lower ends of which engage a fan casing 45 having a fan 46, conventionally shown, which fan is driven from any suitable source of power and creates a strong suction through the escape passage 44; the duct 25, and the air inlet 26.
  • the air current created by the fan strips the fibers directly from the dofier 20, the usual doifer comb being dispensed with, and carries them in suspended and separated condition through the duct and deposits them on the screen 33.
  • the speed of rotation of the screen may be varied through the change gear box or assembly 40 so as to give difierent screen speeds.
  • the thickness of the web formed by the fibers deposited on the screen may be widely varied. If a thin web is desired, the screen cylinder will be revolved at relatively high speed so that a thin layer of fibers is deposited on it. If a thicker web is desired, the speed of the screen may be slowed down and a thicker web results.
  • the delivery end of the duct 25 will be sealed off from the screen in any suitable manner as for example, by the flexible seals 41', as shown in Figure 4, or by means of the sealing oif roller 48, which sealing of! roller is mounted for free revolution by reason of its contact with the screen surface, this roller being preferably mounted in an adjustable spring mounting 49, as shown in Figures 9 and 11, so that its tension against the screen surface may be varied.
  • the screen 33 which is mounted to revolve on the fixed shaft 34, is carried by the spokes mounted on the hub 5
  • the shield 42 is supported by the spokes 53 carried by the hub 54 which is pinned to the shaft 34 so as to hold the shield 42 in fixed p sition.
  • the shield 42 is sealed oi! at its ends from the screen 33 by the sealing strips 55 so as to confine the suction through the shield and permit its escape only through the connections 44.
  • the machine is set to form a narrow fabric or sliver, which sliver is dolled from the revolving screen 33 by means of a dofling roll 56, as shown in Figure 1, driven from pinion 35, from which doffing roll it passes to the drawing-off rolls 5! driven from any suitable source, and then passes to a sliver-receiving head 58, from which it is deposited in a sliver can 59.
  • the machine is shown with means for bonding the web with any suitable bonding solution.
  • Any convenient or desired bonding equipment can be used.
  • it comprises a supporting stand 60 having at its upper end a housing 6i in which are disposed spray heads connected to a pipe 62, which pipe may be supplied from any suitable source with the bonding solution.
  • the web will be removed from the screen cylinder 33 and brought to the bonding area by a belt 83 mounted on rollers driven from any suitable source of power, so that, as the belt is driven, the web will be carried forward to drying instrumentalities hereinafter described.
  • the belt may be formed of any suitable flexible and porous material such as cloth, woven wire, and the like.
  • Any suitable means such, for example, as suction tube 65 may be provided to draw the bonding solution through and thoroughly impregnate the web. Any excess solution from the belt 63 will be caught by a drainage shelf 63 having a discharge tube 64' through which excess solution or overflow from the belt 63 will be delivered to any suitable receptacle.
  • the web passes from the belt 63 to drying and curing means as shown in Figure 2.
  • This drying and curing equipment may be made up in different ways, but is here shown as an electrical dryer. It comprises a stand 66 having a heated box B1 in which is mounted for rotation rollers 68 having a carrier belt 69 to which the web is delivered from the belt 63.
  • Heating and drying elements Hi conventionally shown as electrical heating elements to which current is supplied from any suitable source, are disposed above and below the belt 69 so that the web is subjected to complete drying and curing and then passes over a roller ii and is delivered in bonded and dried condition.
  • non-woven fabric characterized by uniform density and texture and of equal strength in all directions, free from imperfections caused by knots and tangles, and of superior appearance ray be produced.
  • the method of forming non-woven fabrics which comprises carding fibres and thus continuously providing a source of fibre supply of carded fibres, continuously delivering the said carded fibres from a supply to a foraminous fibre receiving member to form on such member a web, said delivery being accomplished by passing the carded fibres from said supply to the foraminous member by means of an air current through a confined uninterrupted path of equal area in cross section throughout its length, the fibres being suspended in said air current during travel in said path to the foraminous fibre receiving member, forming a web on said member, and removing the web from said member.
  • the method of forming non-woven fabrics which comprises carding fibres and thus continuously providing a source of fibre supply of carded fibres, continuously delivering the said carded fibres from a supply to a foraminous fibre receiving member to form on such member a web, said delivery being accomplished by passing the carded fibres from said supply to the foraminous member by means of an air current through a confined uninterrupted path of equal area in cross section throughout its length, the fibres being suspended in said air current during travel in said path to the foraminous fibre receiving member, forming a web on said member, removing the web from said member, and bonding the web.
  • the method of forming non-woven fabrics which comprises carding fibres and thus continuously providing a source of fibre supply of carded fibres, continuously delivering the said carded fibres from a supply to a foraminous fibre receiving member to form on such member a web, said delivery being accomplished by passing the carded fibres from said supply to the foraminous member by means of an air current through a confined uninterrupted path of equal area in cross section throughout its length, the fibres being suspended in said air current during travel in said path to the foraminous fibre receiving member, forming a web on said member, removing the web from said member, bonding the Web, and drying the Web.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
US786662A 1947-11-18 1947-11-18 Nonwoven fabric and method for making same Expired - Lifetime US2477675A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US786662A US2477675A (en) 1947-11-18 1947-11-18 Nonwoven fabric and method for making same
GB20232/48A GB659088A (en) 1947-11-18 1948-07-29 Improved production of unwoven fabrics
US80502A US2478148A (en) 1947-11-18 1949-03-09 Machine for producing unwoven fabrics
FR982788D FR982788A (fr) 1947-11-18 1949-03-10 Procédé et machine pour la fabrication d'étoffes non tissées
NL145430A NL72169C (xx) 1947-11-18 1949-03-16
CH290553D CH290553A (fr) 1947-11-18 1949-03-16 Procédé pour la fabrication de voiles de fibres non tissées, et machine pour la mise en oeuvre de ce procédé.
BE488099D BE488099A (xx) 1947-11-18 1949-03-25
US185590A US2648876A (en) 1947-11-18 1950-09-19 Method and machine for producing unwoven fabrics
FR63214D FR63214E (fr) 1947-11-18 1951-09-03 Procédé et machine pour la fabrication d'étoffes non tissées
GB20738/51A GB703574A (en) 1947-11-18 1951-09-03 Improved method and apparatus for producing fibrous webs
BE505773D BE505773A (xx) 1947-11-18 1951-09-12
NL163958A NL80534C (xx) 1947-11-18 1951-09-13
CH302111D CH302111A (fr) 1947-11-18 1951-09-19 Procédé pour former une étoffe fibreuse, et machine pour sa mise en oeuvre.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US786662A US2477675A (en) 1947-11-18 1947-11-18 Nonwoven fabric and method for making same
US80502A US2478148A (en) 1947-11-18 1949-03-09 Machine for producing unwoven fabrics
US185590A US2648876A (en) 1947-11-18 1950-09-19 Method and machine for producing unwoven fabrics

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US2477675A true US2477675A (en) 1949-08-02

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US786662A Expired - Lifetime US2477675A (en) 1947-11-18 1947-11-18 Nonwoven fabric and method for making same
US80502A Expired - Lifetime US2478148A (en) 1947-11-18 1949-03-09 Machine for producing unwoven fabrics
US185590A Expired - Lifetime US2648876A (en) 1947-11-18 1950-09-19 Method and machine for producing unwoven fabrics

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US80502A Expired - Lifetime US2478148A (en) 1947-11-18 1949-03-09 Machine for producing unwoven fabrics
US185590A Expired - Lifetime US2648876A (en) 1947-11-18 1950-09-19 Method and machine for producing unwoven fabrics

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US (3) US2477675A (xx)
BE (2) BE488099A (xx)
CH (2) CH290553A (xx)
FR (2) FR982788A (xx)
GB (2) GB659088A (xx)
NL (2) NL72169C (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648876A (en) * 1947-11-18 1953-08-18 West Point Mfg Co Method and machine for producing unwoven fabrics
US2676364A (en) * 1949-02-23 1954-04-27 Chicopee Mfg Corp Method and apparatus for making fabrics
US2676363A (en) * 1949-02-23 1954-04-27 Chicopee Mfg Corp Method and apparatus for making fabrics
US2695855A (en) * 1949-11-23 1954-11-30 Gustin Bacon Mfg Co Fibrous mat
US2719337A (en) * 1949-05-28 1955-10-04 Int Cellucotton Products Method of making non-woven fabric
US2731679A (en) * 1952-06-03 1956-01-24 Chicopee Mfg Corp Method of making nonwoven fabric
US2825389A (en) * 1949-11-23 1958-03-04 Gustin Bacon Mfg Co Process of making a mat or felted structure
US2841204A (en) * 1953-02-05 1958-07-01 Joshua H Goldman Method of manufacturing a non-woven fibrous sheet
US2990004A (en) * 1956-07-12 1961-06-27 Johns Manville Fiber Glass Inc Method and apparatus for processing fibrous material
US3017918A (en) * 1957-07-29 1962-01-23 Manuf De Feutres De Mouzon Sa Apparatus for manufacturing nonwoven textile articles
US3443286A (en) * 1966-09-07 1969-05-13 Wellman Ind Textile card and lap feeding means
DE1510427B1 (de) * 1966-11-02 1970-10-08 Schickedanz Ver Papierwerk Verfahren und Vorrichtung zum Herstellen von Faserstoff-Formkoerpern,insbesondere Saugkoerpern fuer Damenbinden

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US2861299A (en) * 1958-11-25 Apparatus for and method of cleaning lint cotton
US2777779A (en) * 1949-01-21 1957-01-15 Kimberly Clark Co Faced textile material
US2751633A (en) * 1949-09-10 1956-06-26 Dick Co Ab Method and apparatus for removing dense from lighter material
US2931421A (en) * 1950-05-04 1960-04-05 Schuller Werner Apparatus for the production of a thin sheet or mat from glass fibres
US2788547A (en) * 1952-06-11 1957-04-16 Stearns & Foster Company Carding machine
US3010161A (en) * 1954-02-16 1961-11-28 Wood Conversion Co Method and means for producing mixed fiber suspensions in air and felts therefrom
US2986780A (en) * 1954-04-07 1961-06-06 Kimberly Clark Co Method and apparatus for forming patterned webs
US2914422A (en) * 1954-09-03 1959-11-24 Celanese Corp Batting material and process for producing same
DE1031188B (de) * 1955-04-15 1958-05-29 Aschaffenburger Zellstoffwerke Vorrichtung zum Herstellen eines gleichmaessigen Wattevlieses
US2893043A (en) * 1956-06-04 1959-07-07 West Point Mfg Co Vacuum extraction tube
US2910731A (en) * 1956-10-30 1959-11-03 Vernon P Moore Textile fiber sorter
US2877739A (en) * 1956-12-07 1959-03-17 West Point Mfg Co Impregnating apparatus
BE564412A (xx) * 1957-02-01 1900-01-01
US3016582A (en) * 1957-02-14 1962-01-16 Falls Paper & Power Company Batt or mat forming apparatus
US3066359A (en) * 1957-11-05 1962-12-04 Chicopee Mfg Corp Methods and apparatus for producing fibrous webs
DE1219833B (de) * 1957-11-16 1966-06-23 Ferdinand Reiterer Karde mit pneumatischem Abzug des Fasergutes vom Tambour
DE1101341B (de) * 1958-09-10 1961-03-09 West Point Mfg Company Saugkammer zum Absaugen von Impraegniermittel aus Faserstoffbahnen
US2993351A (en) * 1959-11-12 1961-07-25 Du Pont Fiber recovery unit for knitting machine
US3256569A (en) * 1963-09-24 1966-06-21 Proctor And Schwartz Inc Web density control means for web forming apparatus
US3319302A (en) * 1964-04-16 1967-05-16 Inst Textiltechnologie Der Che Apparatus for sliver formation in carding machines
US3641627A (en) * 1965-11-10 1972-02-15 Int Paper Co Forming apparatus
US3501813A (en) * 1965-11-10 1970-03-24 Int Paper Canada Method of forming a continuous fibrous web
FR1587056A (xx) * 1968-05-03 1970-03-13
US3543351A (en) * 1968-09-24 1970-12-01 Riegel Textile Corp Machine for forming a random fiber web
US3748693A (en) * 1971-03-26 1973-07-31 Georgia Pacific Corp Apparatus for making nonwoven fibrous webs
US3932915A (en) * 1974-08-09 1976-01-20 E. I. Du Pont De Nemours & Company Air-laydown apparatus for forming uniform webs of staple fibers
DE4103005C2 (de) * 1990-02-12 1996-07-11 Fehrer Ernst Vorrichtung zum Herstellen eines Faservlieses
US5093059A (en) * 1991-01-18 1992-03-03 Shell Oil Company Method for the transport of a homogeneous mixture of chopped fibers
US7962993B2 (en) 2005-09-30 2011-06-21 First Quality Retail Services, Llc Surface cleaning pad having zoned absorbency and method of making same
US7694379B2 (en) 2005-09-30 2010-04-13 First Quality Retail Services, Llc Absorbent cleaning pad and method of making same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB220149A (en) * 1923-07-21 1924-08-14 John Hamer Improvements in machines for cleaning cotton-waste and other fibrous substances
GB217476A (en) * 1923-09-04 1924-06-19 Thomas Pennington Barlow Improvements in machines for opening and cleaning cotton, cotton waste and other fibrous material
US1710977A (en) * 1924-02-15 1929-04-30 Cons Mattress Co Method of and apparatus for producing felt and product obtained therefrom
US2001687A (en) * 1930-07-07 1935-05-14 Whitin Machine Works Picker
US2146698A (en) * 1936-01-14 1939-02-07 Redding Sims Lint flue and condenser
US2244544A (en) * 1938-11-05 1941-06-03 Continental Gin Co Apparatus for collecting and blending lint
US2396178A (en) * 1940-07-08 1946-03-05 Frank H Lee Company Hatmaking apparatus and method of operating same
GB545638A (en) * 1941-01-25 1942-06-05 Abraham Marshall Improvements in exhaust openers and lap machines, scutchers and other machines used in the preparation of cotton and other fibrous materials

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648876A (en) * 1947-11-18 1953-08-18 West Point Mfg Co Method and machine for producing unwoven fabrics
US2676364A (en) * 1949-02-23 1954-04-27 Chicopee Mfg Corp Method and apparatus for making fabrics
US2676363A (en) * 1949-02-23 1954-04-27 Chicopee Mfg Corp Method and apparatus for making fabrics
US2719337A (en) * 1949-05-28 1955-10-04 Int Cellucotton Products Method of making non-woven fabric
US2695855A (en) * 1949-11-23 1954-11-30 Gustin Bacon Mfg Co Fibrous mat
US2825389A (en) * 1949-11-23 1958-03-04 Gustin Bacon Mfg Co Process of making a mat or felted structure
US2731679A (en) * 1952-06-03 1956-01-24 Chicopee Mfg Corp Method of making nonwoven fabric
US2841204A (en) * 1953-02-05 1958-07-01 Joshua H Goldman Method of manufacturing a non-woven fibrous sheet
US2990004A (en) * 1956-07-12 1961-06-27 Johns Manville Fiber Glass Inc Method and apparatus for processing fibrous material
US3017918A (en) * 1957-07-29 1962-01-23 Manuf De Feutres De Mouzon Sa Apparatus for manufacturing nonwoven textile articles
US3443286A (en) * 1966-09-07 1969-05-13 Wellman Ind Textile card and lap feeding means
DE1510427B1 (de) * 1966-11-02 1970-10-08 Schickedanz Ver Papierwerk Verfahren und Vorrichtung zum Herstellen von Faserstoff-Formkoerpern,insbesondere Saugkoerpern fuer Damenbinden

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NL80534C (xx) 1956-02-15
BE505773A (xx) 1951-09-29
BE488099A (xx) 1949-04-15
FR982788A (fr) 1951-06-14
US2648876A (en) 1953-08-18
CH290553A (fr) 1953-05-15
GB659088A (en) 1951-10-17
GB703574A (en) 1954-02-03
FR63214E (fr) 1955-09-12
CH302111A (fr) 1954-10-15
NL72169C (xx) 1953-04-15
US2478148A (en) 1949-08-02

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