EP0141226A2 - Method and apparatus for the heat treatment of fibre fleeces - Google Patents
Method and apparatus for the heat treatment of fibre fleeces Download PDFInfo
- Publication number
- EP0141226A2 EP0141226A2 EP84111228A EP84111228A EP0141226A2 EP 0141226 A2 EP0141226 A2 EP 0141226A2 EP 84111228 A EP84111228 A EP 84111228A EP 84111228 A EP84111228 A EP 84111228A EP 0141226 A2 EP0141226 A2 EP 0141226A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fleece
- pair
- drum
- heated
- nonwovens
- 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.)
- Withdrawn
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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
- D04H1/40—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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1023—Surface deformation only [e.g., embossing]
Definitions
- the invention relates to a method for the heat treatment of nonwovens which contain melt fibers, bicomponent fibers or other thermoplastic fibers for solidification, in that the nonwoven is transported through a heated pair of press rolls, and to an apparatus for carrying out this method.
- the basis weights of, for example, carded nonwovens range from 12 to 600 g per m 2 .
- the fleece passes through the nip of a pair of press rolls, which consists of internally heated rolls.
- a cooling sieve drum can also be connected to the pair of cooling rollers to ventilate the fleece with cold air.
- Nonwovens with a weight per unit area of, for example, 12 g / m 2 are passed through a heated pair of press rolls which, if necessary, simultaneously carry out an embossing process.
- at least one roller of the calender is profiled / provided.
- This calendering for consolidating light nonwovens has become established in practice since light nonwovens cannot be pressed sufficiently on the sieve drum.
- the delivery speed depends on the type of manufacture of the nonwovens. Carded nonwovens, spunbonded nonwovens or also such nonwovens produced by the wet nonwoven laying process can be used.
- the delivery speeds are currently up to 200 m / min.
- the delivery speed of the respective fleece is important because the pressure in the pair of calender rolls must be higher if the delivery speed increases. It had to be determined that at delivery speeds over 100 m / min. the pressure in the pair of calender rolls must be set so high to achieve a nonwoven bonding that the delivered product has a board failure even with light nonwovens. In order to obtain a sufficient strengthening of the nonwovens, the compression pressure was partially adjusted so high that an additional cold deformation of the fibers could be determined.
- the temperature of the rolls must be run considerably higher than the melting temperature of the fibers. As a result, this quickly leads to product damage if the system should slow down due to some greens.
- the object of the invention is to develop a method by means of which nonwovens delivered at high speed can be consolidated and embossed under the influence of heat, without the need for excessive pressures with rollers heated up too high have to.
- the invention provides that the fleece is first heated to at least 70-80% of the solidification temperature on a through-flow dryer, on which it is held both during treatment and through which hot treatment gases flow, and immediately thereafter by The pair of press rolls runs, being pressed evenly across the working width and embossed with the addition of temperature.
- the embossing process is therefore carried out on one Press roll pair carried out while the heating of the fleece is transferred from the pair of calender rolls to an immediately upstream flow dryer.
- light nonwovens with a delivery speed of 200 m / min. and more on the screen drum first heated to the necessary solidification temperature and then only brought into the desired configuration on the pair of embossing rollers. Now only a small pressure needs to be generated in the embossing roller pair to produce the desired pattern, so that the fleece automatically receives a light, voluminous handle.
- the device for carrying out the method consists at least of a heatable pair of press rolls, which is directly preceded by a screen drum device. It is possible to surround the sieve drum with an endless sieve pressing the fleece onto the sieve drum, and not to be able to hold the fleece to the sieve drum, but only to prevent the fleece from shrinking.
- the device screening drum and pair of press rolls are not two individual units connected in series, but because of the method according to the invention, this entire device is a unit. If possible, the pair of press rolls should be arranged within the screen drum device so that the fleece heated on the screen drum has no possibility of cooling until embossing.
- the sieve drum device consists of a heat-insulated housing 1, in which a sieve drum 2 is rotatably mounted.
- the fan 3 shown in FIG. 2 is arranged in a separate fan chamber 4 and puts the inside of the screening drum 2 under negative pressure.
- the fan 3, driven by the motor 5, blows the treatment air on all sides in the direction of the arrows shown around the sieve drum into the treatment chamber 6, which is separated from the sieve drum 2 by a sieve cover 7 to equalize the air flow.
- the screen drum 2 according to FIG. 1 is surrounded by an endless screen 8 which presses the product lying on the screen drum to prevent shrinkage against the screen drum.
- the endless belt 8 can, however, also be omitted.
- a pair of calender rolls 9 is arranged directly below the screening drum 2, through whose pair of squeeze rolls the textile product runs.
- the pair of squeeze rollers is formed from internally heated cylinders and serves to emboss the continuous fleece 10.
- the fleece 10 reaches the surface of the sieve drum 2 through which the circulating air flows, via an endless belt 11 approximately at the level of the axis of the sieve drum, and is guided upward around the sieve drum due to the rotation 12 of the sieve drum.
- a reverse direction of rotation of the screening drum 2 and the pair of press rollers in the area of the incoming goods is also conceivable.
- the fleece 10 is flowed through by the air heated by the heating device 13 and heated in the process. After rotating the screen drum 2 of almost 270 °, the suction is interrupted due to the inner cover 14, the fleece will detach from the screen drum and run around the upper roller of the pair of press rollers 9, which is also heated. It then passes through the nip 15 where it is embossed with the desired surface.
- An outgoing endless screen 16 carries the finished fleece to the next processing station.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Das Verfahren nach der Erfindung dient im wesentlichen zum Thermoverfestigen von Leichtvliesen. Dazu wird das Vlies mittels einer Durchbelüftung auf einem Siebtrommeltrockner auf einen hohen Prozentsatz der Verfestigungstemperatur aufgeheizt und gleich anschließend in dem Quetschwalzenspalt eines Kalanders mit innenbeheizten Walzen geprägt. Die zur Durchführung des Verfahrens vorgesehene Vorrichtung besteht aus einer Siebtrommelvorrichtung, in der der Kalander zum Prägen angeordnet ist.
Description
Die Erfindung bezieht sich auf ein Verfahren zum Wärmebehandeln von Vliesen, die zum Verfestigen Schmelzfasern, Bikomponenten-fasern oder sonstige thermoplastische Fasern enthalten, indem das Vlies durch ein aufgeheiztes Preßwalzenpaar transportiert wird, und auf eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for the heat treatment of nonwovens which contain melt fibers, bicomponent fibers or other thermoplastic fibers for solidification, in that the nonwoven is transported through a heated pair of press rolls, and to an apparatus for carrying out this method.
Die Flächengewichte von z.B. Krempelvliesen erstrecken sich von 12 - 600 g pro m2. Damit die Vliese der genannten Art bei der praktischen Verwendung eine genügende Festigkeit aufweisen, ist es notwendig, sie einer Wärmebehandlung zu unterziehen. Es ist bekannt, diese Wärme durch Kalandrieren auf das Vliesprodukt zu bringen. Dabei durchläuft das Vlies den Quetschspalt eines Preßwalzenpaares, das aus innen beheizten Walzen besteht. Da mit dieser Wärmebehandlung im Griff brettige, steife Vliese erzeugt werden, ist es bei voluminösen Vliesen bekannt, diese auf einer unter Saugzug stehenden Siebtrommel mit umlaufendem Endlosband auf die notwendige Erweichungstemperatur der thermoplastischen Faser zu erhitzen und im Anschluß an den Wärmebehandlungsvorgang durch ein gekühltes Preßwalzenpaar zu führen, das die Aufgabe hat, das Vlies über die Breite zu egalisieren und die Struktur einzufrieren. Nach der DE-OS 16 60 791 kann sich an das Kühlwalzenpaar auch noch eine kühlende Siebtrommel zur Durchlüftung des Vlieses mit Kaltluft anschließen.The basis weights of, for example, carded nonwovens, range from 12 to 600 g per m 2 . In order for the nonwovens of the type mentioned to have sufficient strength in practical use, it is necessary to subject them to a heat treatment. It is known to apply this heat to the nonwoven product by calendering. The fleece passes through the nip of a pair of press rolls, which consists of internally heated rolls. Since this heat treatment produces stiff, non-woven webs in the handle, it is known in the case of voluminous nonwovens to heat them to the necessary softening temperature of the thermoplastic fiber on a suction drum with a continuous belt, and then to heat the heat treatment process by means of a cooled pair of press rollers that has the task of leveling the fleece across the width and freezing the structure. According to DE-OS 16 60 791, a cooling sieve drum can also be connected to the pair of cooling rollers to ventilate the fleece with cold air.
Das Behandlungsverfahren nach der genannten Offenlegungsschrift hat sich zur Behandlung von voluminösen Vliesen durchaus bewährt. Im Gegensatz dazu ist das Verfestigungsverfahren für Leichtvliese noch heute allein auf die Kalandrierung beschränkt. Vliese mit einem Flächengewicht von z.B. 12 g/m2 werden dabei durch ein erhitztes Preßwalzenpaar gefahren, das ggf. gleichzeitig einen Prägevorgang durchführt. Dazu ist zumindest eine Walze des Kalanders mit einer Profilierung/Versehen.The treatment method according to the mentioned publication has proven itself for the treatment of voluminous nonwovens. In contrast, the consolidation process for lightweight nonwovens is still limited to calendering today. Nonwovens with a weight per unit area of, for example, 12 g / m 2 are passed through a heated pair of press rolls which, if necessary, simultaneously carry out an embossing process. For this purpose, at least one roller of the calender is profiled / provided.
Dieses Kalandrieren zum Verfestigen von Leichtvliesen hat sich in der Praxis durchgesetzt, da Leichtvliese auf der Siebtrommel nicht genügend gepreßt werden können. Die Liefergeschwindigkeit hängt von der Herstellungsart der Vliese ab. Es kommen Krempelvliese, Spinnvliese oder auch solche nach dem Naßvlieslegeverfahren hergestellte Vliese in Frage. Die Liefergeschwindigkeiten betragen zur Zeit bis zu 200 m/min. Von Bedeutung ist die Liefergeschwindigkeit des jeweiligen Vlieses insofern, weil der Preßdruck im Kalanderwalzenpaar höher sein muß, wenn die Liefergeschwindigkeit steigt. Es mußte festgestellt werden, daß bei Liefergeschwindigkeiten über 100 m/min. der Preßdruck im Kalanderwalzenpaar zur Erzielung einer Vliesverfestigung derart hoch angesetzt werden muß, daß das gelieferte Produkt auch bei Leichtvliesen einen brettigen Ausfall hat. Um eine ausreichende Verfestigung der Vliese zu erhalten, ist teilweise der Preßdruck so hoch justiert worden, daß eine zusätzliche Kaltverformung der Fasern festgestellt werden konnte.This calendering for consolidating light nonwovens has become established in practice since light nonwovens cannot be pressed sufficiently on the sieve drum. The delivery speed depends on the type of manufacture of the nonwovens. Carded nonwovens, spunbonded nonwovens or also such nonwovens produced by the wet nonwoven laying process can be used. The delivery speeds are currently up to 200 m / min. The delivery speed of the respective fleece is important because the pressure in the pair of calender rolls must be higher if the delivery speed increases. It had to be determined that at delivery speeds over 100 m / min. the pressure in the pair of calender rolls must be set so high to achieve a nonwoven bonding that the delivered product has a board failure even with light nonwovens. In order to obtain a sufficient strengthening of the nonwovens, the compression pressure was partially adjusted so high that an additional cold deformation of the fibers could be determined.
Weiterhin muß bei hohen Liefergeschwindigkeiten die Temperatur der Walzen erheblich höher gefahren werden, als die Schmelztemperatur der Fasern beträgt. Dies führt folglich schnell zu Warenschädigungen, falls die Anlage aus irgendwelchen Grünen einmal langsamer fahren sollte.Furthermore, at high delivery speeds, the temperature of the rolls must be run considerably higher than the melting temperature of the fibers. As a result, this quickly leads to product damage if the system should slow down due to some greens.
Ausgehend von dem Verfahren anfangs genannter Art liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zu entwickeln, mit dem auch mit hoher Geschwindigkeit angelieferte Leichtvliese unter Wärmeeinwirkung verfestigt und geprägt werden können, und zwar ohne daß dazu zu hohe Preßdrucke mit zu hoch aufgeheizten Walzen aufgewandt werden müssen.Based on the method mentioned at the outset, the object of the invention is to develop a method by means of which nonwovens delivered at high speed can be consolidated and embossed under the influence of heat, without the need for excessive pressures with rollers heated up too high have to.
Zur Lösung der gestellten Aufgabe sieht die Erfindung vor, daß das Vlies zunächst auf einem Durchströmtrockner, auf dem es sowohl während der Behandlung festgehalten als auch quer von heißen Behandlungsgasen durchströmt wird, mindestens bis auf 70 - 80 % der Verfestigungstemperatur aufgeheizt und sofort anschließend durch das Preßwalzenpaar läuft,dabei gleichmäßig über die Arbeitsbreite gepreßt und unter Temperaturzufuhr geprägt wird. Bei dem Verfahrei nach der Erfindung wird also der Prägevorgang allein auf einem Preßwalzenpaar durchgeführt, während die Erhitzung des Vlieses von dem Kalanderwalzenpaar auf einen unmittelbar vorgeordneten Durchströmtrockner übertragen wird. Mit Hilfe dieses Verfahrens können Leichtvliese mit einer Liefergeschwindigkeit von 200 m/min. und mehr auf der Siebtrommel zunächst auf die notwendige Verfestigungstemperatur aufgeheizt und dann lediglich auf dem Prägewalzenpaar in die gewünschte Konfiguration gebracht werden. Jetzt braucht im Prägewalzenpaar nur noch ein geringer Druck zur Erzeugung des gewünschten Musters erzeugt werden, so daß automatisch das Vlies einen leichten, voluminösen Griff erhält.To achieve the object, the invention provides that the fleece is first heated to at least 70-80% of the solidification temperature on a through-flow dryer, on which it is held both during treatment and through which hot treatment gases flow, and immediately thereafter by The pair of press rolls runs, being pressed evenly across the working width and embossed with the addition of temperature. In the procedure according to the invention, the embossing process is therefore carried out on one Press roll pair carried out while the heating of the fleece is transferred from the pair of calender rolls to an immediately upstream flow dryer. With the help of this process, light nonwovens with a delivery speed of 200 m / min. and more on the screen drum first heated to the necessary solidification temperature and then only brought into the desired configuration on the pair of embossing rollers. Now only a small pressure needs to be generated in the embossing roller pair to produce the desired pattern, so that the fleece automatically receives a light, voluminous handle.
Die Vorrichtung zur Durchführung des Verfahrens besteht zumindest aus einem heizbaren Preßwalzenpaar, dem unmittelbar eine Siebtrommelvorrichtung vorgeschaltet ist. Es ist dabei möglich, die Siebtrommel von einem das Vlies an die Siebtrommel drückenden Endlossieb zu umgeben, und zwar nicht um das Vlies an der Siebtrommel halten zu können, sondern nur um einen ev. Schrumpf des Vlieses zu verhindern.The device for carrying out the method consists at least of a heatable pair of press rolls, which is directly preceded by a screen drum device. It is possible to surround the sieve drum with an endless sieve pressing the fleece onto the sieve drum, and not to be able to hold the fleece to the sieve drum, but only to prevent the fleece from shrinking.
Es ist hervorzuheben, daß die Vorrichtung Siebtrommel und Preßwalzenpaar nicht zwei hintereinander geschaltete einzelne Aggregate sind, sondern daß aufgrund des Verfahrens nach der Erfindung diese gesamte Vorrichtung eine Einheit darstellt. Das Preßwalzenpaar ist nach Möglichkeit innerhalb der Siebtrommelvorrichtung anzuordnen, so daß das auf der Siebtrommel aufgeheizte Vlies keine Möglichkeit hat, bis zum Prägen abzukühlen.It should be emphasized that the device screening drum and pair of press rolls are not two individual units connected in series, but because of the method according to the invention, this entire device is a unit. If possible, the pair of press rolls should be arranged within the screen drum device so that the fleece heated on the screen drum has no possibility of cooling until embossing.
In der Zeichnung ist ein Ausführungsbeispiel der Vorrichtung nach der Erfindung dargestellt. Es zeigen:
- Figur 1 im Querschnitt eine Siebtrommelvorrichtung mit unmittelbar nachgeordnetem Prägewalzenpaar und
Figur 2 die Vorrichtung nach Figur 1 im Längsschnitt.
- Figure 1 in cross section a screen drum device with a immediately downstream pair of embossing rollers and
- Figure 2 shows the device of Figure 1 in longitudinal section.
Die Siebtrommelvorrichtung besteht aus einem wärmeisolierten Gehäuse 1, in dem eine Siebtrommel 2 drehbar gelagert ist. An der einen Stirnseite der Siebtrommel 2 ist der aus Figur 2 ersichtliche Ventilator 3 in einem eigenen Ventilatorraum 4 angeordnet und setzt das Innere der Siebtrommel 2 unter Unterdruck. Der mittels des Motors 5 angetriebene Ventilator 3 bläst die Behandlungsluft allseitig in Richtung der dargestellten Pfeile um die Siebtrommel in den Behandlungsraum 6, der zur Vergleichmäßigung der Luftströmung durch eine Siebdecke 7 von der Siebtrommel 2 abgetrennt ist. Die Siebtrommel 2 nach Figur 1 ist von einem Endlossieb 8 umgeben, das das auf der Siebtrommel aufliegende Produkt zur Verhinderung eines Schrumpfes gegen die Siebtrommel drückt. Das Endlosband 8 kann jedoch auch entfallen. Unmittelbar unterhalb der Siebtrommel 2 ist ein Kalanderwalzenpaar 9 angeordnet, durch dessen Quetschwalzenpaar das textile Produkt läuft. Das Quetschwalzenpaar ist aus innen geheizten Zylindern gebildet und dient zum Prägen des durchlaufenden Vlieses 10.The sieve drum device consists of a heat-insulated housing 1, in which a
Gemäß der Darstellung nach Figur 1 gelangt das Vlies 10 über ein Endlosband 11 etwa in Höhe der Achse der Siebtrommel auf die von der Umluft durchströmte Oberfläche der Siebtrommel 2 und wird aufgrund der Drehung 12 der Siebtrommel nach oben um die Siebtrommel geführt. Eine umgekehrte Drehrichtung der Siebtrommel 2 und dem Preßwalzenpaar im Bereich des Wareneinlaufs ist ebenso denkbar. Beim Transport um die Siebtrommel wird das Vlies lO von der mittels der Heizeinrichtung 13 aufgeheizten Luft durchströmt und dabei erhitzt. Nach Umlaufen der Siebtrommel 2 von fast 270 ° wird der Saugzug aufgrund der Innenabdeckung 14 unterbrochen, das Vlies wird sich von der Siebtrommel lösen und um die obere Walze des Preßwalzenpaares 9 laufen, welches ebenfalls beheizt ist. Im Anschluß daran gelangt es durch den Quetschwalzenspalt 15, wo es mit der gewünschten Oberfläche geprägt wird. Ein auslaufendes Endlossieb 16 trägt das fertige Vlies zur nächsten Bearbeitungsstation.According to the illustration according to FIG. 1, the
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3334787 | 1983-09-26 | ||
| DE19833334787 DE3334787A1 (en) | 1983-09-26 | 1983-09-26 | METHOD AND DEVICE FOR HEAT TREATING FLEECES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0141226A2 true EP0141226A2 (en) | 1985-05-15 |
| EP0141226A3 EP0141226A3 (en) | 1988-08-17 |
Family
ID=6210089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84111228A Withdrawn EP0141226A3 (en) | 1983-09-26 | 1984-09-20 | Method and apparatus for the heat treatment of fibre fleeces |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4812284A (en) |
| EP (1) | EP0141226A3 (en) |
| DE (1) | DE3334787A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0719887A3 (en) * | 1994-12-13 | 1998-04-01 | FLEISSNER GmbH & Co. KG Maschinenfabrik | Method and process for the finishing of carded webs |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1233086B (en) * | 1989-05-31 | 1992-03-14 | Claudio Governale | Consolidating loose fibrous nonwoven structures into web |
| US5399174A (en) * | 1993-04-06 | 1995-03-21 | Kimberly-Clark Corporation | Patterned embossed nonwoven fabric, cloth-like liquid barrier material |
| US5599420A (en) * | 1993-04-06 | 1997-02-04 | Kimberly-Clark Corporation | Patterned embossed nonwoven fabric, cloth-like liquid barrier material and method for making same |
| DE19755229A1 (en) * | 1997-12-12 | 1999-06-24 | Johannes Kloeber | Device and method for producing a breathable underlayment |
| US6036896A (en) * | 1998-05-21 | 2000-03-14 | Lear Corporation | Method for preheating permeable, thermoformable material |
| US6202998B1 (en) | 1999-12-03 | 2001-03-20 | Lear Corporation | Apparatus for supporting a sheet material along its peripheral edges |
| US6872233B2 (en) | 2002-01-31 | 2005-03-29 | Bha Technologies, Inc. | High efficiency particulate air rated vacuum bag media and an associated method of production |
| US20030194547A1 (en) * | 2002-04-15 | 2003-10-16 | Fuhrmann Louis P. | Membrane composite structure and method of production |
| US20030192294A1 (en) * | 2002-04-16 | 2003-10-16 | Alan Smithies | Filter medium |
| US20060128247A1 (en) * | 2004-12-14 | 2006-06-15 | Kimberly-Clark Worldwide, Inc. | Embossed nonwoven fabric |
| US10589134B2 (en) * | 2008-01-30 | 2020-03-17 | Kimberly-Clark Worldwide, Inc. | Hand health and hygiene system for hand health and infection control |
| US9949906B2 (en) * | 2008-07-11 | 2018-04-24 | Kimberly-Clark Worldwide, Inc. | Substrates having formulations with improved transferability |
| US11234905B2 (en) * | 2008-07-11 | 2022-02-01 | Kimberly-Clark Worldwide, Inc. | Formulations having improved compatibility with nonwoven substrates |
| CN103498284A (en) * | 2013-09-29 | 2014-01-08 | 无锡众望四维科技有限公司 | Drum-type drying machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1909345A1 (en) * | 1968-02-14 | 1970-09-10 | Vepa Ag | Random fleece and process for its production |
| DE2207896A1 (en) * | 1966-05-31 | 1973-08-23 | Vepa Ag | SCREEN DRUM DEVICE FOR CONSOLIDATING NEEDLE FELT, FELT AND SIMILAR PRODUCTS |
| EP0070164A2 (en) * | 1981-07-10 | 1983-01-19 | Chicopee | Absorbent nonwoven fabric containing staple length polyester/polyethylene conjugate fibers and absorbent fibers |
| EP0105730A2 (en) * | 1982-09-30 | 1984-04-18 | Chicopee | Open mesh belt bonded fabric |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1282103A (en) * | 1960-12-07 | 1962-01-19 | Process and machine for the manufacture of a web of textile fibers agglomerated by a binder | |
| DE1660791A1 (en) * | 1966-05-31 | 1972-02-17 | Vepa Ag | Method and device for consolidating needle felt, felt and similar products |
| US3811988A (en) * | 1968-02-14 | 1974-05-21 | Vepa Ag | Apparatus for continuous bonding of felt materials by sequential heating and cooling operations |
| CH616183A5 (en) * | 1977-03-18 | 1980-03-14 | Rieter Ag Maschf | Process for forming a lap web of constant weight per unit length and an apparatus for carrying out the process |
-
1983
- 1983-09-26 DE DE19833334787 patent/DE3334787A1/en not_active Withdrawn
-
1984
- 1984-09-20 EP EP84111228A patent/EP0141226A3/en not_active Withdrawn
-
1986
- 1986-11-21 US US06/933,162 patent/US4812284A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2207896A1 (en) * | 1966-05-31 | 1973-08-23 | Vepa Ag | SCREEN DRUM DEVICE FOR CONSOLIDATING NEEDLE FELT, FELT AND SIMILAR PRODUCTS |
| DE1909345A1 (en) * | 1968-02-14 | 1970-09-10 | Vepa Ag | Random fleece and process for its production |
| EP0070164A2 (en) * | 1981-07-10 | 1983-01-19 | Chicopee | Absorbent nonwoven fabric containing staple length polyester/polyethylene conjugate fibers and absorbent fibers |
| EP0105730A2 (en) * | 1982-09-30 | 1984-04-18 | Chicopee | Open mesh belt bonded fabric |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0719887A3 (en) * | 1994-12-13 | 1998-04-01 | FLEISSNER GmbH & Co. KG Maschinenfabrik | Method and process for the finishing of carded webs |
Also Published As
| Publication number | Publication date |
|---|---|
| US4812284A (en) | 1989-03-14 |
| DE3334787A1 (en) | 1985-04-11 |
| EP0141226A3 (en) | 1988-08-17 |
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