EP0081218A2 - Process for the production of a fleece web - Google Patents

Process for the production of a fleece web Download PDF

Info

Publication number
EP0081218A2
EP0081218A2 EP82111235A EP82111235A EP0081218A2 EP 0081218 A2 EP0081218 A2 EP 0081218A2 EP 82111235 A EP82111235 A EP 82111235A EP 82111235 A EP82111235 A EP 82111235A EP 0081218 A2 EP0081218 A2 EP 0081218A2
Authority
EP
European Patent Office
Prior art keywords
fibers
mat
binder
interwoven
transverse direction
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.)
Granted
Application number
EP82111235A
Other languages
German (de)
French (fr)
Other versions
EP0081218B1 (en
EP0081218A3 (en
Inventor
Miichiro Kawamura
Mitsuru Fujihashi
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0081218A2 publication Critical patent/EP0081218A2/en
Publication of EP0081218A3 publication Critical patent/EP0081218A3/en
Application granted granted Critical
Publication of EP0081218B1 publication Critical patent/EP0081218B1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means

Definitions

  • the invention relates to a process for the production of a nonwoven fabric, in which the fibers used are gathered together flatly to form a mat, interwoven by jets of a fluidic medium directed against the surface and then glued.
  • the invention has for its object to show a method for producing a dimensionally stable nonwoven that ensures the achievement of a high modulus. This is to be understood as the force required for a 5% stretch.
  • This object is achieved according to the invention in a method of the type mentioned at the outset by impregnating the fiber mat consisting of interwoven fibers with a binder, linearly stretching it at least 20% linearly at least in the transverse direction and drying it while solidifying the binder.
  • the proposed method is particularly suitable for the manufacture of dimensionally stable nonwovens with a weight per unit area of 20 to 80 g / m 2 , and in addition to good tensile stability, they are notable for particularly low elongation in the width direction.
  • the high dimensional stability enables the nonwovens to be mechanically bonded to a synthetic material by means of a needling process.
  • they can serve as stiffening materials in this case, but when using chemically activatable fibers they can also be used as binding materials for the subsequent laminating of the laminate onto a carrier.
  • An embodiment which has been found to be particularly suitable for this purpose can be obtained if the interwoven fiber mat is produced from hot water-soluble polyvinyl alcohol fibers, if it is impregnated with the aqueous solution of a water-soluble resin and linearly stretched at least 20% at least in the transverse direction, and if below the softening temperature of the fibers is dried.
  • the softening temperature of the aforementioned fibers in hot water is approximately in the range between 40 and 90 ° C. The drying must therefore be carried out in such a way that the said temperature interval is not reached.
  • the solubility in water can be increased by adding alkali-saponified polyvinyl acetate. This can be mixed with other resins to further increase solubility.
  • the hot-water-soluble polyvinyl alcohol fibers are flatly assembled into a mat by known methods, for example using a carding machine or an air layer.
  • the thus formed, uncompressed and relatively unstable mat is exposed to the action of liquid or gas jets directed against the surface.
  • the fiber mat thus obtained is then sprayed or impregnated with the aqueous solution of a water-soluble resin or the like. It is then stretched by at least 20% at least in the transverse direction, preferably by 40% or more.
  • the forces exerted on the fiber mat by the stretching process result in a particularly large elongation of the fibers in the loosened surface areas and thus a strong increase in tensile strength and elongation stability in these areas.
  • the other areas in which significantly more fibers are gathered together in a very small space, are characterized by the greater effectiveness of capillary forces a strong accumulation of binding agent, overall seen through a strong material agglomeration, which is stabilized by the drying process and also results in high stretch stability.
  • the binder content be at least 60% by weight, preferably at least 70%.
  • the fibers contained in the surface areas of a high fiber density are not significantly stretched by the at least transverse stretching of the fiber mat used. They have a large residual elongation and are able to withstand the mechanical stress caused by the needles penetrating during a subsequent needling process without damage and breakage. Even a needling process is therefore not able to significantly alter the nonwovens obtainable by the proposed method with regard to their elongation modulus.
  • the binders used in the proposed process are preferably water-soluble resins such as polyvinyl alcohol, polyethylene oxide, hydroxyalkyl cellulose, carboxymethyl cellulose, polyacrylamide, polyvinyl pyrrolidone, polyacrylate, starch and the like.
  • Polyvinyl alcohol is considered with regard to the film-forming properties, the dissolution time, the treatability of the solution and preferred because of similar advantages, particularly in relation to the treatment of fiber mats made of polyvinyl alcohol fibers.
  • the nonwovens obtainable by the proposed method achieve an elongation of 10% only when loaded with 1 kg / cm or more. They are undesirably stretched or changed in shape and are less suitable as binding materials if a corresponding stretch already occurs at a lower load.
  • the resulting mat was transferred to a 30 mesh wire screen and exposed to water jets to intertwine the fibers.
  • the water had a pressure of 40 kg / cm 2 . It was directed through nozzles against the surface of the mat, which was 0.3 mm in diameter.
  • the self-stable fiber mat thus obtained was then impregnated with a 1.5% strength aqueous solution of water-soluble polyvinyl alcohol resin, stretched 50% in the transverse direction and dried in this form.
  • the nonwoven fabric obtained is excellently suitable as a binding material and shows a 10% elongation only when loaded with 1.5 kg / cm. The elongation at break was 15%.
  • the needles inserted during the needling process are not significantly deflected laterally, which results in a precise needling pattern while avoiding frequent needle breaks.
  • the nonwoven fabric is distinguished by a high modulus of elasticity and can be dissolved in a remarkably short time by activating its adhesive forces, which is advantageous in relation to the lamination of substrates with a laminate needled with the nonwoven fabric.
  • the nonwovens obtainable by the proposed method are therefore extremely suitable for such chemical bonding purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Decoration Of Textiles (AREA)
  • Automatic Embroidering For Embroidered Or Tufted Products (AREA)

Abstract

Verfahren zur Herstellung eines Vliesstoffes, bei dem die verwendeten Fasern flächenhaft zu einer Matte zusammengelagert, durch gegen die Oberfläche gerichtete Strahlen eines fluidischen Mediums verflochten und anschließend verklebt werden, wobei die aus verflochtenen Fasern bestehende Fasermatte mit einem Bindemittel imprägniert, wenigstens in Querrichtung um weningstens 20% linear gedehnt und unter Verfestigung des Bindemittels getrocknet wird. Sowohl hinsichtlich der verwendeten Fasern als auch hinsichtlich des verwendeten Bindemittels kommt vorzugsweise Polyvinylalkohol zur Anwendung.Process for the production of a nonwoven, in which the fibers used are gathered together to form a mat, interwoven by jets of fluidic medium directed against the surface and then glued, the fiber mat consisting of interwoven fibers being impregnated with a binder, at least in the transverse direction by at least 20 % linearly stretched and dried while solidifying the binder. Polyvinyl alcohol is preferably used both with regard to the fibers used and with regard to the binder used.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Vliesstoffes, bei dem die verwendeten Fasern flächenhaft zu einer Matte zusammengelagert, durch gegen die Oberfläche gerichtete Strahlen eines fluidischen Mediums verflochten und anschließend verklebt werden.The invention relates to a process for the production of a nonwoven fabric, in which the fibers used are gathered together flatly to form a mat, interwoven by jets of a fluidic medium directed against the surface and then glued.

Ein solches Verfahren ist aus DE-PS 11 57 513 bekannt. Die damit erhaltenen Vliese zeichnen sich durch eine große Dehnung und eine dementsprechend geringe Dehnstabilität aus, d. h. durch eine unbefriedigende Formhaltung.Such a method is known from DE-PS 11 57 513. The nonwovens thus obtained are notable for great elongation and, accordingly, low elongation stability. H. due to unsatisfactory shape keeping.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines formbeständigen Vliesstoffes zu zeigen, das die Erzielung eines hohen Moduls gewährleistet. Zu verstehen ist hierunter die Kraft, die für eine Dehnung um 5 % benötigt wird.The invention has for its object to show a method for producing a dimensionally stable nonwoven that ensures the achievement of a high modulus. This is to be understood as the force required for a 5% stretch.

Diese Aufgabe wird erfindungsgemäß bei einem Verfahren der eingangs genannten Art dadurch gelöst, daß die aus verflochtenen Fasern bestehende Fasermatte mit einem Bindemittel imprägniert, wenigstens in Querrichtung um wenigstens 20 % linear gedehnt und unter Verfestigung des Bindemittels getrocknet wird.This object is achieved according to the invention in a method of the type mentioned at the outset by impregnating the fiber mat consisting of interwoven fibers with a binder, linearly stretching it at least 20% linearly at least in the transverse direction and drying it while solidifying the binder.

Das vorgeschlagene Verfahren eignet sich besonders für die Hersaellung von formbeständigen Vliesen mit einem Flächengewicht von 20 bis 80 g/m2, und diese zeichnen sich neben einer guten Zugstabilität durch eine besonders geringe Dehnung in Breitenrichtung aus.The proposed method is particularly suitable for the manufacture of dimensionally stable nonwovens with a weight per unit area of 20 to 80 g / m 2 , and in addition to good tensile stability, they are notable for particularly low elongation in the width direction.

Die hohe Dimensionsstabilität ermöglicht es, die Vliese durch einen Nadelungsvorgang mechanisch mit einem Dberstoff zu verbinden. Sie können in Abhängigkeit von der Art der verwendeten Fasern in diesem Falle als Versteifungsmaterialien dienen, jedoch bei Verwendung von chemisch aktivierbaren Fasern auch als Bindematerialien für das nachträgliche Aufkaschieren des Laminates auf einen Trägerstoff. Als besonders geeignet hat sich hierfür eine Ausführung erwiesen, die erhalten werden kann, wenn die aus verflochtenen Fasern bestehende Fasermatte aus heißwasserlöslichen Polyvinylalkoholfasern hergestellt wird, wenn diese mit der wässrigen Lösung eines wasserlöslichen Harzes imprägniert und wenigstens in Querrichtung um wenigstens 20 % linear gedehnt wird und wenn unterhalb der Erweichungstemperatur der Fasern getrocknet wird. Die Erweichungstemperatur der vorgenannten Fasern in heißem Wasser liegt etwa im Bereich zwischen 40 und 90° C. Die Trocknung muß deshalb so vorgenommen werden, daß das genannte Temperaturintervall nicht erreicht wird.The high dimensional stability enables the nonwovens to be mechanically bonded to a synthetic material by means of a needling process. Depending on the type of fibers used, they can serve as stiffening materials in this case, but when using chemically activatable fibers they can also be used as binding materials for the subsequent laminating of the laminate onto a carrier. An embodiment which has been found to be particularly suitable for this purpose can be obtained if the interwoven fiber mat is produced from hot water-soluble polyvinyl alcohol fibers, if it is impregnated with the aqueous solution of a water-soluble resin and linearly stretched at least 20% at least in the transverse direction, and if below the softening temperature of the fibers is dried. The softening temperature of the aforementioned fibers in hot water is approximately in the range between 40 and 90 ° C. The drying must therefore be carried out in such a way that the said temperature interval is not reached.

Die Löslichkeit in Wasser läßt sich steigern durch Zusatz von alkaliverseiftem Polyvinylacetat. Dieses kann mit anderen Harzen gemischt werden, um die Löslichkeit weiter zu steigern.The solubility in water can be increased by adding alkali-saponified polyvinyl acetate. This can be mixed with other resins to further increase solubility.

Die heißwasserlöslichen Polyvinylalkoholfasern werden nach bekannten Verfahren flächenhaft zu einer Matte zusammengelagert, beispielsweise unter Verwendung einer Krempelanlage oder eines Luftlegers. Die so gebildete, unverdichtete und relativ unstabile Matte wird der Einwirkung von gegen die Oberfläche gerichteten Flüssigkeits- oder Gasstrahlen ausgesetzt. Diese führen zu einer gegenseitigen Verschlingung und Verflechtung der Fasern in Abstände voneinander aufweisenden Flächenbereichen, so daß die erhaltene, eigenstabile Matte neben relativ schwach verschlungenen, aufgelockerten Bereichen solche einer hohen Faserdichte aufweist, in denen die Fasern intensiv verflochten und verknäult sind. Die Abstände sind sehr gering, jedoch mit bloßem Auge ohne weiteres erkennbar.The hot-water-soluble polyvinyl alcohol fibers are flatly assembled into a mat by known methods, for example using a carding machine or an air layer. The thus formed, uncompressed and relatively unstable mat is exposed to the action of liquid or gas jets directed against the surface. These lead to a mutual intertwining and interweaving of the fibers at spaced surface areas, so that the inherently stable mat obtained, in addition to relatively weakly intertwined, loosened areas, has a high fiber density in which the fibers are intensely intertwined and convoluted. The distances are very small, but can easily be seen with the naked eye.

Die so erhaltene Fasermatte wird anschließend mit der wässrigen Lösung eines wasserlöslichen Harzes oder dergleichen besprüht oder imprägniert. Sie wird danach um wenigstens 20 % wenigstens in Querrichtung verstreckt, vorzugsweise um 40 % oder mehr.The fiber mat thus obtained is then sprayed or impregnated with the aqueous solution of a water-soluble resin or the like. It is then stretched by at least 20% at least in the transverse direction, preferably by 40% or more.

Die durch den Verstreckungsvorgang auf die Fasermatte ausgeübten Kräfte haben in den aufgelockerten Flächenbereichen eine besonders große Dehnung der Fasern zur Folge und damit in diesen Bereichen einen starken Anstieg der Zugfestigkeit und Dehnungsstabilität. Die übrigen Bereiche, in denen wesentlich mehr Fasern auf engstem Raum zusammengelagert sind, zeichnen sich demgegenüber infolge der größeren Wirksamkeit von Kapillarkräften durch eine starke Anreicherung an Bindemittel aus, somit insgesamt gesehen durch eine starke Materialzusammenballung, die durch den Trocknungsvorgang stabilisiert wird und hier ebenfalls eine hohe Dehnungsstabilität zur Folge hat.The forces exerted on the fiber mat by the stretching process result in a particularly large elongation of the fibers in the loosened surface areas and thus a strong increase in tensile strength and elongation stability in these areas. The other areas, in which significantly more fibers are gathered together in a very small space, are characterized by the greater effectiveness of capillary forces a strong accumulation of binding agent, overall seen through a strong material agglomeration, which is stabilized by the drying process and also results in high stretch stability.

Voraussetzung für die Erzielung dieses Effektes ist selbstverständlich, daß die Fasern unter den zur Entfernung des Wassers angewendeten Bedingungen eine Schädigung nicht erfahren. In Fällen, in denen heißwasserlösliche Fasern zur Anwendung kommen, darf die Trocknungstemperatur die Löslichkeitsschwelle der Fasern nicht überschreiten.A prerequisite for achieving this effect is, of course, that the fibers are not damaged under the conditions used to remove the water. In cases where hot water-soluble fibers are used, the drying temperature must not exceed the solubility threshold of the fibers.

In bezug auf die Erzielung eines guten Dehnungsmoduls ist es wichtig, daß der Gehalt des Bindemittels wenigstens 60 Gew.-% beträgt, vorzugsweise wenigstens 70 %.In order to achieve a good elongation modulus, it is important that the binder content be at least 60% by weight, preferably at least 70%.

Die in den Flächenbereichen einer großen Faserdichte enthaltenen Fasern werden durch die mindestens in Querrichtung vorgenommene Verstreckung der eingesetzten Fasermatte nicht nennenswert gedehnt. Sie haben eine große Restdehnung und vermögen der mechanischen Belastung durch die bei einem nachträglichen Nadelungsvorgang eindringenden Nadeln ohne Schädigung und Bruch zu widerstehen. Auch ein Vadelungsvorgang vermag daher die nach dem vorgeschlagenen Verfahren erhältlichen Vliesstoffe hinsichtlich ihres Dehnungsmoduls nicht in wesentlichem Maße nachteilig zu verändern.The fibers contained in the surface areas of a high fiber density are not significantly stretched by the at least transverse stretching of the fiber mat used. They have a large residual elongation and are able to withstand the mechanical stress caused by the needles penetrating during a subsequent needling process without damage and breakage. Even a needling process is therefore not able to significantly alter the nonwovens obtainable by the proposed method with regard to their elongation modulus.

Die bei dem vorgeschlagenen Verfahren verwendeten Bindemittel sind vorzugsweise wasserlösliche Harze wie beispielsweise Polyvinylalkohol, Polyäthylenoxid, Hydroxyalkylcellulose, Carboxymethylcellulose, Polyacrylamid, Polyvinylpyrrolidon, Polyacrylat, Stärke und dergleichen.The binders used in the proposed process are preferably water-soluble resins such as polyvinyl alcohol, polyethylene oxide, hydroxyalkyl cellulose, carboxymethyl cellulose, polyacrylamide, polyvinyl pyrrolidone, polyacrylate, starch and the like.

Polyvinylalkohol wird in Hinblick auf die Filmbildenden Eigenschaften, die Lösungszeit, die Behandelbarkeit der Lösung und wegen ähnlicher Vorteile bevorzugt benutzt, insbesondere in bezug auf die Behandlung von Fasermatten aus Polyvinylalkoholfasern.Polyvinyl alcohol is considered with regard to the film-forming properties, the dissolution time, the treatability of the solution and preferred because of similar advantages, particularly in relation to the treatment of fiber mats made of polyvinyl alcohol fibers.

Die nach dem vorgeschlagenen Verfahren erhältlichen Vliesstoffe erreichen eine Dehnung von 10 % erst bei einer Belastung mit 1 kg/cm oder mehr. Sie sind unerwünscht gedehnt oder in ihrer Form verändert und weniger gut als Bindematerialien geeignet, wenn eine entsprechende Dehnung bereits bei geringerer Belastung auftritt.The nonwovens obtainable by the proposed method achieve an elongation of 10% only when loaded with 1 kg / cm or more. They are undesirably stretched or changed in shape and are less suitable as binding materials if a corresponding stretch already occurs at a lower load.

Der Gegenstand der vorliegenden Erfindung wird nachfolgend anhand eines Beispieles näher erläutert:

  • Mit Hilfe einer Krempelanlage wurde.aus heißwasserlöslichen Polyvinylaikohalfasern eine Matte aus lose zusammengelagerten Fasern gebildete die ein Flächengewicht von 50 g/m2 aufwies. Die Fasern hatten bei zwei denier eine Schittlänge von 51 mm.
The subject matter of the present invention is explained in more detail below using an example:
  • With the help of a carding machine, a mat of loosely assembled fibers was formed from hot water-soluble polyvinyl alkali fibers, which had a basis weight of 50 g / m 2 . The fibers had a cut length of 51 mm for two deniers.

Die entstehende Matte wurde auf ein Drahtsieb von 30 mesh überführt und der Einwirkung von Wasserstrahlen zur gegenseitigen Verflechtung der Fasern ausgesetzt. Das Wasser hatte einen Druck von 40-kg/cm2. Es wurde durch Düsen gegen die Oberfläche der Matte gerichtet, die einen Durchmesser von 0,3 mm hatten.The resulting mat was transferred to a 30 mesh wire screen and exposed to water jets to intertwine the fibers. The water had a pressure of 40 kg / cm 2 . It was directed through nozzles against the surface of the mat, which was 0.3 mm in diameter.

Anschließend wurde die so erhaltene, eigenstabile Fasermatte mit einer 1,5 %igen, wässrigen Lösung aus wasserlöslichem Polyvinylalkoholharz imprägniert, in Querrichtung um 50 % verstreckt und in dieser Form getrocknet.The self-stable fiber mat thus obtained was then impregnated with a 1.5% strength aqueous solution of water-soluble polyvinyl alcohol resin, stretched 50% in the transverse direction and dried in this form.

Der erhaltene Vliesstoff eignet sich ausgezeichnet als Bindematerial und zeigt eine 10 %ige Dehnung erst bei einer Belastung mit 1,5 kg/cm. Die Bruchdehnung betrug 15 %.The nonwoven fabric obtained is excellently suitable as a binding material and shows a 10% elongation only when loaded with 1.5 kg / cm. The elongation at break was 15%.

Diese Werte sind außerordentlich bemerkenswert, und sie gewährleisten, daß ein nachträglich durchgeführter Nadelungsvorgang, beispielsweise in Hinblick auf die Verbindung mit einem Oberstoff eine Dimensionsveränderung praktisch nicht zur Folge hat.These values are extremely remarkable, and they ensure that a subsequent needling process, for example with regard to the connection to an outer fabric, does not practically result in a dimensional change.

Die während des Nadlungsvorgangs eingestochenen Nadeln werden nicht in nennenswertem Maße seitlich abgelenkt, wodurch ein präzises Nadelungsmuster erhalten wird unter Vermeidung häufiger Nadelbrüche.The needles inserted during the needling process are not significantly deflected laterally, which results in a precise needling pattern while avoiding frequent needle breaks.

Der Vliesstoff zeichnet sich trotz seines geringen Flächengewichtes durch einen hohen Dehnungsmodul aus und läßt sich unter Aktivierung seiner Klebkräfte in bemerkenswert kurzer Zeit auflösen, was vorteilhaft ist in bezug auf die Kaschierung von Trägerstoffen mit einem mit dem Vliesstoff vernadelten Laminat. Die nach dem vorgeschlagenen Verfahren erhältlichen Vliesstoffe sind daher ausgezeichnet für derartige chemische Bindungszwecke geeignet.Despite its low basis weight, the nonwoven fabric is distinguished by a high modulus of elasticity and can be dissolved in a remarkably short time by activating its adhesive forces, which is advantageous in relation to the lamination of substrates with a laminate needled with the nonwoven fabric. The nonwovens obtainable by the proposed method are therefore extremely suitable for such chemical bonding purposes.

Claims (3)

1. Verfahren zur Herstellung eines Vliesstoffes, bei dem die verwendeten Fasern flächenhaft zu einer Matte.zusammengelagert, durch gegen die Oberfläche gerichtete Strahlen eines fluidischen Mediums verflochten und anschließend verklebt werden, dadurch gekennzeichnet, daß die aus verflochtenen Fasern bestehende Matte mit einem Bindemittel imprägniert, wenigstens in Querrichtung um wenigstens 20 % linear gedehnt und unter Verfestigung des Bindemittels getrocknet wird.1. A process for producing a nonwoven fabric, in which the fibers used are assembled to form a mat, intertwined by jets of fluidic medium directed against the surface and then glued, characterized in that the mat consisting of interwoven fibers is impregnated with a binder, linearly stretched at least 20% at least in the transverse direction and dried while solidifying the binder. 2. Verfahren zur Herstellung eines Vliesstoffes, bei dem die verwendeten Fasern flächenhaft zu einer Matte zusammengelagert, durch gegen die Oberfläche gerichtete Strahlen eines fluidischen Mediums verflochten und anschließend verklebt werden,, dadurch gekennzeichnet, daß die aus verflochtenen Fasern bestehende Fasermatte aus heißwasserlöslichen Polyvinylalkohol fasern hergestellt wird, daß sie wenigstens in Querrichtung um wenigstens 20 % linear gedehnt, mit der wäßrigen Lösung eines wasserlöslichen Harzes imprägniert und unterhalb der Erweichungstemperatur der Fasern getrocknet wird2. A method for producing a nonwoven fabric, in which the fibers used are assembled to form a mat, interwoven by jets of fluidic medium directed against the surface and then glued, characterized in that the fiber mat made of interwoven fibers is made of hot water-soluble polyvinyl alcohol fibers is that it is linearly stretched by at least 20% at least in the transverse direction, impregnated with the aqueous solution of a water-soluble resin and dried below the softening temperature of the fibers 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die mit dem Bindemittel imprägnierte Matte wenigstens in Querrichtung um wenigstens 40 % linear gedehnt wird.3. The method according to claim 1 or 2, characterized in that the mat impregnated with the binder is linearly stretched by at least 40% at least in the transverse direction.
EP82111235A 1981-12-07 1982-12-04 Process for the production of a fleece web Expired EP0081218B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56197461A JPS5898464A (en) 1981-12-07 1981-12-07 Production of base fabric for chemical lace
JP197461/81 1981-12-07

Publications (3)

Publication Number Publication Date
EP0081218A2 true EP0081218A2 (en) 1983-06-15
EP0081218A3 EP0081218A3 (en) 1983-11-30
EP0081218B1 EP0081218B1 (en) 1985-03-20

Family

ID=16374881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111235A Expired EP0081218B1 (en) 1981-12-07 1982-12-04 Process for the production of a fleece web

Country Status (4)

Country Link
US (1) US4570311A (en)
EP (1) EP0081218B1 (en)
JP (1) JPS5898464A (en)
DE (1) DE3262715D1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411752A1 (en) * 1989-06-30 1991-02-06 The Dexter Corporation Method for hydroentangling non-woven fibrous sheets
NL1006059C2 (en) * 1997-05-14 1998-11-17 Geest Adrianus F Van Der Method and device for manufacturing a shaped body.
EP1170413A2 (en) * 2000-07-05 2002-01-09 Firma Carl Freudenberg Water-soluble interlining for an embroidery base fabric
TR200101685A1 (en) * 2001-06-21 2002-11-21 Carl Freudenberg Water-soluble embroidery fixing filling.
WO2005007959A1 (en) * 2003-07-16 2005-01-27 Fleissner Gmbh Synthetic cloth, method and system for the production of said cloth

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162850A (en) * 1984-01-30 1985-08-24 金井　宏之 Water-soluble fiber sheet
US5062161A (en) * 1988-12-16 1991-11-05 Golden Needles Knitting And Glove Co., Inc. Method of making garment, garment and strand material
US5111760A (en) * 1989-06-22 1992-05-12 Garzone Jr Raymond G Double-embroidered lace
US5060350A (en) * 1990-11-08 1991-10-29 Milliken Research Corporation Method to manufacture tubular woven fabric
FR2679573B1 (en) * 1991-07-25 1993-09-24 Perfojet Sa PROCESS FOR THE MANUFACTURE OF A WASHABLE, COTTON-BASED TABLECLOTH, AND TABLECLOTH THUS OBTAINED.
JP2755361B2 (en) * 1993-06-30 1998-05-20 徹 糸井 Method for manufacturing multiple woven fabrics
JP2002540317A (en) * 1999-03-26 2002-11-26 アイソライザー カンパニー，インコーポレイティド Spunlaced poly (vinyl alcohol) cloth
US6420284B1 (en) 1999-03-26 2002-07-16 Isolyser Company, Inc. Poly (vinyl alcohol) wipes
US7378360B2 (en) * 2003-12-17 2008-05-27 Kimberly-Clark Worldwide, Inc. Water dispersible, pre-saturated wiping products
JP4796571B2 (en) * 2005-03-25 2011-10-19 株式会社クラレ Chemical lace base fabric and method for producing the same
DE102009049802A1 (en) * 2009-10-16 2011-04-21 Carl Freudenberg Kg Water-soluble adhesive coating for water-soluble interlinings
US10487480B2 (en) 2015-11-03 2019-11-26 Monk Intellectual Properties, Llc Water leak detection and prevention device
US10876646B2 (en) 2015-11-03 2020-12-29 Monk Intellectual Properties, Llc Leak detection and prevention device
CN112442771B (en) * 2020-11-13 2022-03-08 浙江羊绒世家服饰股份有限公司 Water-soluble fiber and high count cashmere yarn spinning process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005747A1 (en) * 1979-02-15 1980-08-28 Chicopee WOVEN FIBER FABRIC AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365315A (en) * 1942-04-10 1944-12-19 Du Pont Manufacture of fabrics
US3315329A (en) * 1963-10-21 1967-04-25 Kurashiki Rayon Co Process for the manufacture of chemical lace
US3377678A (en) * 1965-12-27 1968-04-16 Nihon Vinylon Co Ltd Half-soluble special fabric and a method of manufacturing embroidery lace thereon
US3917785A (en) * 1971-01-27 1975-11-04 Johnson & Johnson Method for producing nonwoven fabric
GB1460381A (en) * 1973-06-22 1977-01-06 Houdaille Industries Inc Torsional vibration dampers
US3966522A (en) * 1974-05-23 1976-06-29 Hitco Method of making woven acoustical panel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005747A1 (en) * 1979-02-15 1980-08-28 Chicopee WOVEN FIBER FABRIC AND METHOD FOR THE PRODUCTION THEREOF

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411752A1 (en) * 1989-06-30 1991-02-06 The Dexter Corporation Method for hydroentangling non-woven fibrous sheets
NL1006059C2 (en) * 1997-05-14 1998-11-17 Geest Adrianus F Van Der Method and device for manufacturing a shaped body.
WO1998051477A1 (en) * 1997-05-14 1998-11-19 Geest Adrianus Franciscus V D Method and device for producing a shaped body
US6403002B1 (en) 1997-05-14 2002-06-11 Buss Muller Technology Gmbh Method and device for producing a shaped body
EP1170413A2 (en) * 2000-07-05 2002-01-09 Firma Carl Freudenberg Water-soluble interlining for an embroidery base fabric
EP1170413A3 (en) * 2000-07-05 2002-09-04 Carl Freudenberg KG Water-soluble interlining for an embroidery base fabric
TR200101685A1 (en) * 2001-06-21 2002-11-21 Carl Freudenberg Water-soluble embroidery fixing filling.
WO2005007959A1 (en) * 2003-07-16 2005-01-27 Fleissner Gmbh Synthetic cloth, method and system for the production of said cloth

Also Published As

Publication number Publication date
US4570311A (en) 1986-02-18
JPS5898464A (en) 1983-06-11
JPH0118182B2 (en) 1989-04-04
EP0081218B1 (en) 1985-03-20
EP0081218A3 (en) 1983-11-30
DE3262715D1 (en) 1985-04-25

Similar Documents

Publication Publication Date Title
EP0081218B1 (en) Process for the production of a fleece web
DE69925846T2 (en) VLIESSTOFFE
DE2422975C2 (en) Use of a textile-like nonwoven layer as a dressing material for surgical purposes
DE3390079C2 (en) Multi-layered wipe
EP0435001B1 (en) Laminat
DE69127428T2 (en) Nonwoven and its manufacturing process
DE69310167T2 (en) PATTERNED HYDRAULIC FASTENED FABRICS FROM WOOD PULP AND / OR WOOD PULP-FIBER
DE69005524T2 (en) Non-woven wiping cloth and process for its manufacture.
DE2435376C2 (en) Paper machine felt
DE69400490T2 (en) Filter material, in particular for filtration of blood
DE1065364B (en) Non-woven fiber
DE69421612T2 (en) Manufacturing process for a nonwoven layer made of bound filaments and balm thus produced
DE69316337T2 (en) Nonwoven made from very fine fibers and manufacturing process for it
DE69729936T2 (en) HIGH PRECISION FILTER
DE2718581A1 (en) FILTER CLOTH AND PROCESS FOR ITS MANUFACTURING
DE3733097A1 (en) Tearable nonwoven nonwoven web and process for its production
DE2410346C3 (en) Nonwoven fabric of great maturity and method of its manufacture
DE2232785C3 (en) Porous needle felt as well as related manufacturing processes and applications
DE3103116A1 (en) FIBER FLEECE IMPREGNATED WITH HEAT-RESISTABLE RESIN, METHOD FOR THE PRODUCTION THEREOF AND ITS USE
DE69716689T2 (en) Absorbent composite nonwoven fabric with a soft surface and a rough surface and method of manufacture
DE4125250C2 (en) Air filter material for use in an air filter
DD274061A5 (en) UNWOVEN FIBER PRODUCT
DE1106285B (en) Non-woven washable fiber
DE69002389T2 (en) Textile reinforcement for the manufacture of various complexes and processes for their manufacture.
DE2026070A1 (en) Carbonaceous non-woven cloth

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19831006

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 3262715

Country of ref document: DE

Date of ref document: 19850425

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19911113

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19911204

Year of fee payment: 10

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19921204

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19921204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941124

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950610