EP0331817B1 - Cylinder arrangement for the consolidation of fibre fleeces - Google Patents
Cylinder arrangement for the consolidation of fibre fleeces Download PDFInfo
- Publication number
- EP0331817B1 EP0331817B1 EP88121888A EP88121888A EP0331817B1 EP 0331817 B1 EP0331817 B1 EP 0331817B1 EP 88121888 A EP88121888 A EP 88121888A EP 88121888 A EP88121888 A EP 88121888A EP 0331817 B1 EP0331817 B1 EP 0331817B1
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- EP
- European Patent Office
- Prior art keywords
- cylinder
- knops
- knobs
- cylinders
- flanks
- 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
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—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
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- 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]
-
- 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
- Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
Definitions
- the invention relates to a roller arrangement with two rollers oriented in parallel with respect to their axis of rotation for strengthening nonwoven or the like between them by means of heat and / or by means of solvents, the rollers on their surface being engraved with a weld spot or weld line with the weld spot surfaces following the roller surface on the top of individual knobs and the knobs stand up at a distance from each other relative to the actual roll surface and the knobs of one roll fit between those of the other without contact and in each case the top of the knobs of the rolls up to close to or up to the smooth surface of the counter roll at the foot of their knobs between them pass.
- Such a roller arrangement is known from US Pat. No. 3,616,157, in addition to a plate arrangement.
- the fleece is solidified exclusively on the respective surface of a knob and only in the exceptional case of the embodiment according to FIG. 17 in the web areas connecting these.
- the rows of the knobs of the one roller are laterally offset from the rows of the knobs of the other roller.
- the welding points and welding points of the different levels are so far apart from one another that there is a risk that they will be deformed into a common level during stacking and storage.
- the purpose of achieving the thickest, fluffy nonwoven that is nevertheless highly stable is not achieved.
- the stability can only be achieved by the additional measure according to FIG. 17 can be achieved that bonding webs connect the welding points located in different planes, but then some of the fluffy areas must also be solidified.
- the invention is therefore based on the object of providing a roller arrangement of the type mentioned at the outset, with which the respective consolidation points are met with great precision even with very large rollers and a precise processing of a nonwoven is possible, the end result nevertheless being between the consolidation points should remain fluffy and loose, whereby additional strengthening of the welded area and good stability of the processed fleece should be achieved.
- the knobs of one roller intervene between those of the other with their flanks adjacent to one another, wherein between the flanks of the knobs of one roller and those of the knobs of the other roller in the engaged position, at least approximately the thickness of the fleece Appropriate distance is provided, which is greater than a joint or a distance between the top of the one knob against the smooth surface of the counter-roller, that the flanks of the knobs run obliquely towards the base in the sense of a widening of the knobs and that the helix angle of the one another Gripping knobs of the two rollers are each the same and the flanks of the knobs of one roller run approximately parallel to the respective flanks of the knobs of the other roller in the respective engagement area.
- this arrangement makes it possible to take into account possible deflections of the rollers by appropriate dimensions of the knobs and above all their heights. Since the knobs engage each other, only slight deformation forces are to be expected on the rollers. Since the consolidation points come to lie in two different planes, in spite of the additional consolidation mentioned, a fleece of great softness and fluffiness results that has good absorbency. This is favored by the uniform spacing of the sloping flanks of the knobs, because the transition and thus the deformation of the fleece from one consolidation point in one plane to an adjacent consolidation point in another plane is not too strong.
- the flank angle of the knobs with respect to a perpendicular to the roller surface can be an acute angle of at least 15 ° to 45 °, preferably of about 20 ° or 30 °.
- a preferred embodiment with good results at the consolidation points can consist in that the knobs are approximately frustoconical and are round, oval or rectangular, in particular square, at their base and possibly also at their upper knob surface. This not only results in knobs that are relatively easy to produce, but in this way the knobs can also be distributed very regularly on the roller surface and also allow good embossing of the consolidation points on the respective fleece to be created.
- a diagonal can be arranged in the circumferential direction of the rollers through the layout of the knobs.
- a modified roller arrangement can be characterized in that for imitating a fabric structure on the Surface of the fleece the surfaces of the knobs are elongated and are of equal or unequal length and may have a rounded, square or oval outline, the larger length extension on one roller being perpendicular to that on the other roller.
- the larger length extension on one roller can be oriented parallel to its axis and on the other roller in the circumferential direction. Especially when using surface areas of different sizes, it is also possible to imitate tissue structures that have apparent irregularities.
- the diagonals of square knobs or the greatest length extension of elongated knob surfaces can be oriented obliquely to the axial direction and obliquely to the circumference of the roller.
- the overall result is a roller surface, in which the individual consolidation points of a nonwoven between protruding knobs and a smooth surface of a counter roller can be pressed and consolidated, but the areas of the nonwoven located between them are not rolled. Nevertheless, an above-average effort is avoided, as it would be required if the relatively small and numerous nub surfaces of both rollers always had to meet exactly or should even be slightly offset from one another, which would hardly be feasible with large rollers.
- a roller arrangement for solidifying a nonwoven 1 has two rollers 3 and 4 oriented parallel with respect to its axes of rotation 2, between which the nonwoven 1 is to be solidified at individual points or locations by means of heat and / or solvents. So that the fleece 1 can be solidified at fastening points or points, but remains fluffy and loose, the rollers 3 and 4 have a welding spot or weld line engraving on their surfaces with the roller surface following welding spot surfaces 5 and 6 on the top of individual knobs 7 and 8.
- the knobs 7 and 8 are each high with respect to the actual roller surface 9 and 10. It can be seen above all in FIGS.
- knobs 7 of one roller 3 fit between the knobs 8 of the other roller 4 and engage in use without touching on their flanks 13, and that the top side in each case 5 and 6 of the knobs 7 and 8 of the rollers 3 and 4 up to close to or up to the smooth surface 9 and 10 of the respective counter-roller at the foot of the knobs between them. This becomes particularly clear in FIG. 2.
- the fleece 1 is, as shown in Fig. 2, pressed and consolidated between the knob surfaces 5 and 6 and the closely spaced surfaces 9 and 10 of the rollers 3 and 4, these consolidation points 11 due to this special arrangement and Interlocking of the knobs 7 and 8 according to FIGS. 5 and 8 come to lie in two parallel planes, while the areas 12 of the nonwoven located between them remain loose and soft.
- a distance is provided, which is preferably at least approximately the thickness of the Fleece 1 corresponds. This distance is greater than a joint or a distance between the top 5 or 6 of the respective knob 7 or 8 relative to the smooth surface 9 or 10 of the respective counter roller.
- the flanks 13 of the knobs 7 and 8 run obliquely towards their base 7a and 8a in the sense of widening the knobs 7 and 8.
- the helix angles of the interlocking knobs 7 and 8 of the two rollers 3 and 4 are each the same according to FIGS. 2, 4 and 7 and in the respective engagement area the flanks 13 of the knobs 7 and 8 each run approximately parallel to one another.
- the flank angle of the knobs 7 and 8 with respect to a perpendicular to the roller surface 9 or 10 is in each case an acute angle of 15 to 45 °, FIG. 2 such an angle of approximately 20 °, FIG. 4 such an angle of approximately over 30 ° , namely approximately 35 ° and FIG. 7 shows such an angle of somewhat less than 30 °, namely approximately 25 °.
- the result of this is that there are options here depending on the requirements for the nonwoven and possibly also depending on the height of the knobs.
- the knobs 7 and 8 can each preferably have the shape of a truncated cone or pyramid, with FIGS. 3 and 6 showing that they are on their base 7a and 8a and possibly also on their upper knob surface can be rectangular or square.
- Fig. 6 also shows that one diagonal can be arranged in the circumferential direction by the layout of the knobs and thus the other in the longitudinal direction of the rollers.
- the solution according to FIGS. 3 and 4 is particularly suitable, in which the surfaces 5 and 6 of the knobs 7 and 8 are elongated and have the same length. However, they could also be of unequal length for the imitation of a coarsely structured fabric.
- knob surfaces 5 and 6 could have a rounded, square or oval outline, the larger length of these knob surfaces 5 and 6 on one roller being oriented at right angles to that on the other roller in order to simulate the crossing warp and weft threads of a fabric.
- Fig. 3 an arrangement is shown in which the knob surfaces 5 and 6 are rectangles and the larger length extension on one roller is oriented parallel to its axis and on the other roller in the circumferential direction.
- the diagonals of the knobs 7 and 8 shown there in plan, or also the greatest length extension of the elongated knobs surfaces 7 and 8 according to FIG. 3, could be oriented obliquely to the axial direction and obliquely to the circumference of the rollers be.
- the consolidation points 11 thereby also reach two parallel planes, so that such a fleece already has a certain thickness, which benefits its softness and suppleness. This is promoted by the fact that the transition regions 12 of the nonwoven located between the consolidation points 11 are practically not loaded during its processing with the two rollers 3 and 4.
- Another advantage of this arrangement and shape of the fleece is that at a pressure approximately perpendicular to the planes in which the consolidation points 11 are located, the loose and fluffy areas 12 are even compressed and possibly enlarged in their actual thickness, so that their absorbency can even increase somewhat.
- the top 5 of the knobs 7 and the top 6 of the knobs 8 of the rollers 3 and 4 each close to or up to the smooth surface 9 or 10 of the respective counter-roller at the foot of their knobs between them and further characterized in that between the flanks 13 of the knobs 7 of the one roller 3 and those of the knobs 8 of the another roller 4 in the engaged position a distance is provided which is greater than a joint which occurs with an interposed fleece between the top 5 or 6 of the knobs 7 or 8 with respect to the smooth surface 9 or 10 of the respective counter-roller, can at these limited points the desired high pressure is generated, which, in cooperation with the heat of the heated rolls, brings about a desired welding to welding points at these points.
- the fleece In the area of the larger flank spacings, however, the fleece remains fluffy, but at the same time it is deformed in the direction of bevel of these flanks so that no embossing is required in the end product being produced, but this end product is nevertheless due to the loose fibers and their oblique course and the two parallel ones Flat spot welds has a fluffy and thick volume.
- a relatively thick, fluffy end product can thus be formed from the starting product without the need for additional embossing after solidification by welding points.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
- Woven Fabrics (AREA)
Abstract
Description
Die Erfindung betrifft eine Walzenanordnung mit zwei bezüglich ihrer Drehachse parallel orientierten Walzen zum Verfestigen von Vlies oder dergleichen zwischen ihnen mittels Wärme und/oder mittels Lösungsmitteln, wobei die Walzen an ihrer Oberfläche eine Schweißpunkt- oder Schweißliniengravur mit der Walzenoberfläche folgenden Schweißpunktflächen an der Oberseite einzelner Noppen haben und die Noppen mit Abstand zueinander gegenüber der eigentlichen Walzenoberfläche hochstehen und die Noppen der einen Walze zwischen die der anderen berührungsfrei passen und jeweils die Oberseite der Noppen der Walzen bis nahe an oder bis zu der glatten Oberfläche der Gegenwalze am Fuß von deren Noppen zwischen diese reichen.The invention relates to a roller arrangement with two rollers oriented in parallel with respect to their axis of rotation for strengthening nonwoven or the like between them by means of heat and / or by means of solvents, the rollers on their surface being engraved with a weld spot or weld line with the weld spot surfaces following the roller surface on the top of individual knobs and the knobs stand up at a distance from each other relative to the actual roll surface and the knobs of one roll fit between those of the other without contact and in each case the top of the knobs of the rolls up to close to or up to the smooth surface of the counter roll at the foot of their knobs between them pass.
Eine derartige Walzenanordnung ist aus der US-A 3 616 157 - neben einer Plattenanordnung - bekannt. Dabei ist eine Verfestigung des Vlieses jeweils ausschließlich an der jeweiligen Oberfläche einer Noppe und nur im Ausnahmefall der Ausführungsform nach Fig. 17 in diese verbindenden Stegbereichen vorgesehen. Die Reihen der Noppen der einen Walze sind dabei gegenüber den Reihen der Noppen der anderen Walze seitlich versetzt. Somit haben auch die Schweißpunkte und Schweißstellen der unterschiedlichen Ebenen gegeneinander einen derart großen Abstand, daß die Gefahr besteht, daß sie beim Stapeln und Lagern in eine gemeinsame Ebene verformt werden. Somit wird der Zweck, ein möglichst dickes, flauschiges Vlies von dennoch hoher Stabilität zu erreichen, nicht erfüllt. Die Stabilität kann nur durch die zusätzliche Maßnahme gemäß Fig. 17 erreicht werden, daß Verfestigungsstege die in unterschiedlichen Ebenen befindlichen Schweißstellen verbinden, wodurch dann aber ein Teil der flauschigen Bereiche ebenfalls verfestigt werden muß.Such a roller arrangement is known from US Pat. No. 3,616,157, in addition to a plate arrangement. In this case, the fleece is solidified exclusively on the respective surface of a knob and only in the exceptional case of the embodiment according to FIG. 17 in the web areas connecting these. The rows of the knobs of the one roller are laterally offset from the rows of the knobs of the other roller. Thus, the welding points and welding points of the different levels are so far apart from one another that there is a risk that they will be deformed into a common level during stacking and storage. The purpose of achieving the thickest, fluffy nonwoven that is nevertheless highly stable is not achieved. The stability can only be achieved by the additional measure according to FIG. 17 can be achieved that bonding webs connect the welding points located in different planes, but then some of the fluffy areas must also be solidified.
Der Erfindung liegt deshalb die Aufgabe zu Grunde, eine Walzenanordnung der eingangs erwähnten Art zu schaffen, mit welcher die jeweiligen Verfestigungsstellen mit großer Präzision auch bei sehr großen Walzen getroffen werden und eine präzise Bearbeitung eines Vlieses möglich ist, wobei dieses dennoch im Endergebnis zwischen den Verfestigungsstellen flauschig und locker bleiben soll, wobei eine zusätzliche Verfestigung der verschweißten Stelle und eine gute Stabilität des bearbeiteten Vlieses erreicht werden soll.The invention is therefore based on the object of providing a roller arrangement of the type mentioned at the outset, with which the respective consolidation points are met with great precision even with very large rollers and a precise processing of a nonwoven is possible, the end result nevertheless being between the consolidation points should remain fluffy and loose, whereby additional strengthening of the welded area and good stability of the processed fleece should be achieved.
Die Lösung dieser Aufgabe besteht darin, daß die Noppen der einen Walze zwischen die der anderen mit ihren Flanken jeweils einander benachbart eingreifen, wobei zwischen den Flanken der Noppen der einen Walze und denen der Noppen der anderen Walze in Eingriffstellung ein wenigstens etwa der Dicke des Vlieses entsprechender Abstand vorgesehen ist, der größer als eine Fuge oder ein Abstand zwischen der Oberseite der einen Noppe gegenüber der glatten Oberfläche der Gegenwalze ist, daß die Flanken der Noppen in Sinne einer Verbreiterung der Noppen zu ihrer Basis hin schräg verlaufen und daß die Schrägungswinkel der ineinander greifenden Noppen der beiden Walzen jeweils gleich sind und im jeweiligen Eingriffsbereich die Flanken der Noppen der einen Walze etwa parallel zu den ihnen jeweils benachbarten Flanken der Noppen der anderen Walze verlaufen.The solution to this problem is that the knobs of one roller intervene between those of the other with their flanks adjacent to one another, wherein between the flanks of the knobs of one roller and those of the knobs of the other roller in the engaged position, at least approximately the thickness of the fleece Appropriate distance is provided, which is greater than a joint or a distance between the top of the one knob against the smooth surface of the counter-roller, that the flanks of the knobs run obliquely towards the base in the sense of a widening of the knobs and that the helix angle of the one another Gripping knobs of the two rollers are each the same and the flanks of the knobs of one roller run approximately parallel to the respective flanks of the knobs of the other roller in the respective engagement area.
Auf diese Weise ergeben sich Verfestigungsstellen des Vlieses jeweils in unterschiedlichen Höhenlagen, die einander benachbart sind und wobei die Übergangsbereiche zwischen den Verfestigungsstellen flauschig bleiben, da sie in den Zwischenräumen zwischen den Noppen keiner Verpressung ausgesetzt werden. Dabei ergibt sich als weiterer Vorteil, daß durch die Schrägverformung der Fasern des Vlieses die Innenseiten der jeweils durch die Noppen geformten hohlen Bereiche nahe dem Schweißpunkt trotz des Flankenabstandes noch mit einer gewissen Kraft gegen die Oberseite den noppennahen Flankenbereiche gezogen werden, so daß die verschweißte Stelle jeweils an der Innenseite des hohlen Verformungsbereiches zusätzlich verfestigt wird. Die dieser inneren Verfestigungsstelle gegenüberliegende Außenseite bleibt jedoch flauschig, weil dort gerade keine Berührung mit Flanken von Nachbarnoppen auftritt.In this way, there are consolidation points of the nonwoven at different heights, which are adjacent to one another and the transition regions between the consolidation points remain fluffy, since they are not subjected to compression in the spaces between the knobs. Another advantage is that the oblique deformation of the fibers of the fleece pulls the inside of the hollow areas formed by the knobs near the welding point with a certain force against the upper side of the flank areas despite the flank spacing are, so that the welded point is additionally solidified on the inside of the hollow deformation area. However, the outside of this inner hardening point remains fluffy because there is no contact with flanks of neighboring knobs.
Gleichzeitig ist es durch diese Anordnung möglich, durch entsprechende Abmessungen der Noppen und vor allem ihrer Höhen eventuelle Durchbiegungen der Walzen zu berücksichtigen. Da die Noppen jeweils ineinander greifen, ist auch nur mit geringen Verformungskräften auf die Walzen zu rechnen. Da die Verfestigungspunkte jeweils in zwei verschiedenen Ebenen zu liegen kommen, ergibt sich trotz der erwähnten zusätzlichen Verfestigung insgesamt ein Vlies großer Weichheit und Flauschigkeit, daß eine gute Saugfähigkeit hat. Dies wird durch den gleichmäßigen Abstand der schrägverlaufenden Flanken der Noppen begünstigt, denn der Übergang und somit die Verformung des Vlieses von einer Verfestigungsstelle in einer Ebene zu einer benachbarten Verfestigungsstelle in einer anderen Ebene fällt dadurch nicht zu starkt aus.At the same time, this arrangement makes it possible to take into account possible deflections of the rollers by appropriate dimensions of the knobs and above all their heights. Since the knobs engage each other, only slight deformation forces are to be expected on the rollers. Since the consolidation points come to lie in two different planes, in spite of the additional consolidation mentioned, a fleece of great softness and fluffiness results that has good absorbency. This is favored by the uniform spacing of the sloping flanks of the knobs, because the transition and thus the deformation of the fleece from one consolidation point in one plane to an adjacent consolidation point in another plane is not too strong.
Der Flankenwinkel der Noppen gegenüber einer senkrechten zur Walzenoberfläche kann ein spitzer Winkel von wenigstens 15° bis 45°, vorzugsweise von etwa 20° oder 30° sein.The flank angle of the knobs with respect to a perpendicular to the roller surface can be an acute angle of at least 15 ° to 45 °, preferably of about 20 ° or 30 °.
Eine bevorzugte Ausführungsform mit guten Ergebnissen an den Verfestigungsstellen kann darin bestehen, daß die Noppen etwa kegelstumpfförmig ausgebildet sind und an ihrer Basis und ggfs. auch an ihrer oberen Noppenfläche rund, oval oder rechteckig, insbesondere quadratisch sind. Dies ergibt nicht nur relativ einfach herstellbare Noppen, sondern auf diese Weise lassen sich auch die Noppen sehr regelmäßig an der Walzenoberfläche verteilen und erlauben außerdem die Schaffung guter Prägebilder der Verfestigungsstellen an dem jeweiligen Vlies.A preferred embodiment with good results at the consolidation points can consist in that the knobs are approximately frustoconical and are round, oval or rectangular, in particular square, at their base and possibly also at their upper knob surface. This not only results in knobs that are relatively easy to produce, but in this way the knobs can also be distributed very regularly on the roller surface and also allow good embossing of the consolidation points on the respective fleece to be created.
Dabei kann eine Diagonale durch den Grundriß der Noppen in Umfangsrichtung der Walzen angeordnet sein.A diagonal can be arranged in the circumferential direction of the rollers through the layout of the knobs.
Eine abgewandelte Walzenanordnung kann dadurch gekennzeichnet sein, daß zum Imitieren einer Gewebestruktur an der Oberfläche des Vlieses die Oberflächen der Noppen länglich und dabei gleich oder ungleich lang sind und ggfs. einen gerundeten, eckigen oder ovalen Umriß haben, wobei die größere Längenausdehnung an der einen Walze rechtwinklig zu der an der anderen Walze orientiert sein kann. Beispielsweise kann die größere Längenausdehnung an der einen Walze parallel zu deren Achse und an der anderen Walze in Umfangsrichtung orientiert sein. Vor allem bei Verwendung unter Umständen auch verschieden großer Noppenoberflächen lassen sich so auch Gewebestrukturen imitieren, die scheinbare Unregelmäßigkeiten aufweisen.A modified roller arrangement can be characterized in that for imitating a fabric structure on the Surface of the fleece the surfaces of the knobs are elongated and are of equal or unequal length and may have a rounded, square or oval outline, the larger length extension on one roller being perpendicular to that on the other roller. For example, the larger length extension on one roller can be oriented parallel to its axis and on the other roller in the circumferential direction. Especially when using surface areas of different sizes, it is also possible to imitate tissue structures that have apparent irregularities.
Bei einer wiederum abgewandelten Ausführungsform können die Diagonalen quadratischer Noppen oder die größte Längenausdehnung von länglichen Noppenoberflächen schräg zur Achsrichtung und schräg zum Umfang der Walze orientiert sein.In another modified embodiment, the diagonals of square knobs or the greatest length extension of elongated knob surfaces can be oriented obliquely to the axial direction and obliquely to the circumference of the roller.
Insgesamt ergibt sich eine Walzenoberfläche, bei welcher zwar die einzelnen Verfestigungsstellen eines Vlieses zwischen vorstehenden Noppen und einer glatten Oberfläche einer Gegenwalze gepreßt und verfestigt werden können, die dazwischen befindlichen Bereiche des Vlieses aber nicht gewalzt werden. Dennoch ist ein überdurchschnittlicher Aufwand vermieden, wie er erforderlich wäre, wenn die jeweils relativ kleinen und zahlreichen Noppenoberflächen beider Walzen immer genau aufeinandertreffen müssten oder sogar noch etwas gegeneinander versetzt sein sollten, was bei großen Walzen kaum durchführbar wäre.The overall result is a roller surface, in which the individual consolidation points of a nonwoven between protruding knobs and a smooth surface of a counter roller can be pressed and consolidated, but the areas of the nonwoven located between them are not rolled. Nevertheless, an above-average effort is avoided, as it would be required if the relatively small and numerous nub surfaces of both rollers always had to meet exactly or should even be slightly offset from one another, which would hardly be feasible with large rollers.
Nachstehend ist die Erfindung mit ihren ihr als wesentlich zugehörenden Einzelheiten anhand der Zeichnung noch näher beschrieben.The invention is described in more detail below with its details that are essential to it, using the drawing.
Es zeigt in schematisierter Darstellung:
- Fig. 1
- eine Ansicht einer Walzenanordnung mit zwei parallelen Walzen und einem zwischen diesen hindurchgeführten Vliesstück,
- Fig. 2
- in stark vergrößertem Maßstab einen Längsschnitt durch einen Bereich der Berührstelle der beiden Walzen etwa gemäß der in Fig. 1 durch den strichpunktierten Kreis markierten Einzelheit, wobei jeweils Noppen der einen Walze bis nahe zu der glatten Oberfläche der jeweils anderen Walze reichen und dort das hindurchgeführte Vlies verfestigen, welches jedoch im Bereich der Flanken der Noppen praktisch "unbehelligt" bleibt,
- Fig. 3
- eine Draufsicht eines Walzenbereiches mit jeweils gegeneinander versetzten Reihen von Noppen und Zwischenräumen dazwischen, wo gestrichelt die Noppen der Gegenwalze angedeutet sind,
- Fig. 4
- einen der Fig. 2 entsprechenden Längsschnitt durch einen Teil des Berührbereiches zweier Walzen mit Noppen gemäß Fig. 3, deren Oberflächen länglich und somit in der einen Richtung länger als ind er anderen Richtung sind,
- Fig. 5
- ein mit Hilfe eines Walzenpaares gemäß den
Figuren 3 und 4 bearbeitetes Vlies, - Fig. 6
- eine Ansicht der Oberfläche einer Walze mit kelgelstumpfförmigen Noppen mit quadratischer Basis und kleinerer quadraticher Oberfläche, wobei wiederum strichpunktiert die entsprechenden Noppen der Gegenwalze jeweils in den Zwischenräumen zwischen den Noppen der Walze angedeutet sind,
- Fig. 7
- einen Längsschnitt durch den Berührbereich zweier Walzen gemäß Fig. 6 analog der Darstellung der Fig. 4 und
- Fig. 8
- ein mit Hilfe der Walzenanordnung nach Fig. 6 und 7 bearbeitetes Vlies.
- Fig. 1
- 1 shows a view of a roller arrangement with two parallel rollers and a nonwoven piece passed between them,
- Fig. 2
- on a greatly enlarged scale, a longitudinal section through an area of the contact point of the two rollers, approximately according to the detail marked by the dash-dotted circle in FIG. 1, knobs of one roller each reaching close to the smooth surface of the other roller and the fleece passed therethrough solidify, which remains practically "undisturbed" in the area of the flanks of the knobs,
- Fig. 3
- 2 shows a plan view of a roller region with rows of knobs and spaces between them offset in each case, where the knobs of the counter-roller are indicated by dashed lines,
- Fig. 4
- 3 shows a longitudinal section corresponding to FIG. 2 through part of the contact area of two rollers with knobs according to FIG. 3, the surfaces of which are elongated and thus longer in one direction than in the other direction,
- Fig. 5
- a fleece processed with the aid of a pair of rollers according to FIGS. 3 and 4,
- Fig. 6
- a view of the surface of a roller with truncated cone-shaped knobs with a square base and a smaller square surface, with the corresponding knobs of the counter-roller in each case in dash-dot lines in each case Gaps between the knobs of the roller are indicated,
- Fig. 7
- a longitudinal section through the contact area of two rollers according to FIG. 6 analogous to the representation of FIGS. 4 and
- Fig. 8
- a processed with the help of the roller arrangement according to FIGS. 6 and 7 fleece.
Eine Walzenanordnung zum Verfestigen eines Vlieses 1 weist zwei bezüglich ihrer Drehachsen 2 parallel orientierte Walzen 3 und 4 auf, zwischen denen das Vlies 1 mittels Wärme und/oder Lösungsmitteln an einzelnen Punkten oder Stellen verfestigt werden soll. Damit dabei das Vlies 1 an Befestigungspunkten oder -stellen verfestigt werden kann, im übrigen aber flauschig und locker bleibt, haben die Walzen 3 und 4 an ihren Oberflächen eine Schweißpunkt oder Schweißliniengravur mit der Walzenoberfläche folgenden Schweißpunktflächen 5 und 6 an der Oberseite einzelner Noppen 7 und 8. Die Noppen 7 und 8 stehen gegenüber der eigentlichen Walzenoberfläche 9 und 10 jeweils hoch. Dabei erkennt man vor allem in den Figuren 2, 4 und 7, daß die Noppen 7 der einen Walze 3 zwischen die Noppen 8 der anderen Walze 4 passen und in Gebrauch eingreifen, ohne sich an ihren Flanken 13 zu berühren, und daß jeweils die Oberseite 5 u.6 der Noppen 7 u.8 der Walzen 3 u.4 bis nahe an oder bis zu der glatten Oberfläche 9 bzw. 10 der jeweiligen Gegenwalze am Fuß von deren Noppen zwischen diesen reichen. Besonders deutlich wird dies in Fig. 2.A roller arrangement for solidifying a nonwoven 1 has two
Das Vlies 1 wird also, wie in Fig. 2 verdeutlicht, jeweils zwischen den Noppenoberflächen 5 und 6 und den in geringem Abstand dazu angeordneten Oberflächen 9 und 10 der Walzen 3 und 4 gepreßt und verfestigt, wobei diese Verfestigungsstellen 11 aufgrund dieser speziellen Anordnung und des Ineinandergreifens der Noppen 7 und 8 gemäß Fig. 5 und 8 in zwei parallelen Ebenen zu liegen kommen, während die dazwischen befindlichen Bereiche 12 des Vlieses locker und weich bleiben.The
Wichtig ist dabei, daß zwischen den Flanken 13 der Noppen 7 der einen Walze 3 und denen der Noppen 8 der anderen Walze 4 in Eingriffstellung - wie vor allem in Fig. 2 deutlich erkennbar - ein Abstand vorgesehen ist, der vorzugsweise wenigstens etwa der Dicke des Vlieses 1 entspricht. Dieser Abstand ist dabei größer als eine Fuge oder ein Abstand zwischen der Oberseite 5 bzw. 6 der jeweiligen Noppe 7 bzw. 8 gegenüber der glatten Oberfläche 9 bzw. 10 der jeweiligen Gegenwalze. Dadurch wird in erwünschter Weise erreicht, daß an den vorgegebenen Stellen jeweils an den Oberseiten 5 und 6 der Noppen höhenmäßig gegeneinander versetzt die verfestigten Stellen 11 des Vlieses entstehen, die dazwischen befindlichen Bereich 12 des Vlieses 1 aber unbehelligt bleiben und praktisch nicht gewalzt und verändert werden. Dabei verlaufen die Flanken 13 der Noppen 7 und 8 im Sinne einer Verbreiterung der Noppen 7 und 8 zu ihrer Basis 7a und 8a hin schräg. Die Schrägungswinkel der ineinandergreifenden Noppen 7 und 8 der beiden Walzen 3 und 4 sind dabei gemäß den Figuren 2, 4 und 7 jeweils gleich und im jeweiligen Eingriffsbereich verlaufen die Flanken 13 der Noppen 7 und 8 jeweils etwa parallel zueinander. Der Flankenwinkel der Noppen 7 und 8 gegenüber einer Senkrechten zur Walzenoberfläche 9 bzw. 10 ist dabei jeweils ein spitzer Winkel von 15 bis 45°, wobei Fig. 2 einen solchen Winkel von etwa 20°, Fig. 4 einen solchen von etwa über 30°, nämlich ungefähr 35° und Fig. 7 einen solchen Winkel von etwas unter 30°, nämlich etwa von 25° zeigt. Daraus ergibt sich also, daß hier je nach Anforderungen an das Vlies und unter Umständen auch je nach Höhe der Noppen Wahlmöglichkeiten bestehen.It is important that between the
Anhand der Figuren 2 bis 7 erkennt man, daß die Noppen 7 und 8 jeweils bevorzugt kegel- oder pyramidenstumpfförmig ausgebildet sein können, wobei Fig. 3 und 6 zeigt, daß sie dabei an ihrer Basis 7a und 8a und ggfs. auch an ihrer oberen Noppenoberfläche rechteckig oder quadratisch sein können. Fig. 6 zeigt dabei außerdem, daß eine Diagonale durch den Grundriß der Noppen in Umfangsrichtung und somit die andere in Längsrichtung der Walzen angeordnet sein kann. Zum Imitieren einer Gewebestruktur an der Oberfläche des Vlieses 1 ist vor allem die Lösung nach Fig. 3 und 4 geeignet, bei welcher die Oberflächen 5 und 6 der Noppen 7 und 8 länglich und dabei gleich lang sind. Sie könnten aber auch für die Imitation eines grobstrukturierten Gewebes ungleich lang sein. Dabei könnten sie einen gerundeten, eckigen oder ovalen Umriß haben, wobei die größere Längenausdehnung dieser Noppen-Oberflächen 5 und 6 an der einen Walze rechtwinklig zu der an der anderen Walze orientiert ist, um die sich kreuzenden Kett- und Schußfäden eines Gewebes zu simulieren. In Fig. 3 ist eine Anordnung dargestellt, bei welcher die Noppen-Oberflächen 5 und 6 Rechtecke sind und die größere Längenausdehnung an der einen Walze parallel zu deren Achse und an der anderen Walze in Umfangsrichtung orientiert ist.On the basis of FIGS. 2 to 7 it can be seen that the
Im Gegensatz zu der Anordnung nach Fig. 6 könnten die Diagonalen der dort dargestellten, im Grundriß quadratischen Noppen 7 und 8 oder auch die größte Längenausdehnung der länglichen Noppen-Oberflächen 7 und 8 gemäß Fig. 3 schräg zur Achsrichtung und schräg zum Umfang der Walzen orientiert sein.In contrast to the arrangement according to FIG. 6, the diagonals of the
Insgesamt ergibt sich eine Walzenanordnung, bei welcher bewußt der bisherige Weg verlassen wird, die Noppen der beiden Walzen mit ihren Oberflächen aufeinanderstoßen zu lassen und dazwischen ein Vlies zu verfestigen.Stattdessen greifen die Noppen 7 und 8 jeweils in die Zwischenräume zwischen ihnen und ragen bis nahe zu der Oberfläche 9 und 10 der jeweiligen Gegenwalze, wo dann das Vlies jeweils verfestigt wird. Somit ist es nicht erforderlich, daß die mit Noppen versehenen Walzen und deren relativ kleine Noppen-Oberflächen mit höchster Präzision und unter Berücksichtigung von Verformungen der Walzen gefertigt werden, sondern es kann mit der erforderlichen Sicherheit damit gerechnet werden, daß alle Noppen die jeweiligen Verfestigungen an einem Vlies 1 bewirken.Overall, this results in a roller arrangement in which the previous path is deliberately abandoned, letting the knobs of the two rollers meet with their surfaces and solidifying a fleece in between The
Wie in Fig. 5 und 8 dargestellt, gelangen dadurch außerdem die Verfestigungsstellen 11 in zwei parallele Ebenen, so daß ein solches Vlies schon dadurch eine gewisse Dicke hat, was seiner Weichheit und Geschmeidigkeit zugute kommt. Dies wird dadurch gefördert, daß die zwischen den Verfestigungsstellen 11 jeweils befindlichen Übergangsbereiche 12 des Vlieses während seiner Bearbeitung mit den beiden Walzen 3 und 4 praktisch nicht belastet werden.As shown in FIGS. 5 and 8, the consolidation points 11 thereby also reach two parallel planes, so that such a fleece already has a certain thickness, which benefits its softness and suppleness. This is promoted by the fact that the
Ein weiterer Vorteil dieser Anordnung und Form des Vlieses besteht noch darin, daß bei einem Druck etwa senkrecht zu den Ebenen, in denen die Verfestigungsstellen 11 liegen, die lockeren und flauschigen Bereiche 12 sogar gestaucht und in ihrer eigentlichen Dicke evtl. doch vergößert werden, so daß ihre Saugfähigkeit sogar noch etwas zunehmen kann.Another advantage of this arrangement and shape of the fleece is that at a pressure approximately perpendicular to the planes in which the consolidation points 11 are located, the loose and
Dadurch, daß die Noppen 7 der einen Walze 3 zwischen die Noppen 8 der anderen Walze 4 passen, jeweils die Oberseite 5 der Noppen 7 bzw. die Oberseiten 6 der Noppen 8 der Walzen 3 und 4 bis nahe an oder bis zu der glatten Oberfläche 9 bzw. 10 der jeweiligen Gegenwalze am Fuß von deren Noppen zwischen diese reichen und ferner dadurch, daß zwischen den Flanken 13 der Noppen 7 der einen Walze 3 und denen der Noppen 8 der anderen Walze 4 in Eingriffsstellung ein Abstand vorgesehen ist, der größer als eine bei zwischenliegendem Vlies auftretende Fuge zwischen der Oberseite 5 bzw. 6 der Noppen 7 bzw. 8 gegenüber der glatten Oberfläche 9 bzw. 10 der jeweiligen Gegenwalze ist, kann an diesen begrenzten Stellen der gewünschte hohe Druck erzeugt werden, der im Zusammenwirken mit der Wärme der beheizten Walzen eine angestrebte Verschweißung zu Schweißpunkten an diesen Stellen bewirkt. Im Bereich der größeren Flankenabstände bleibt jedoch das Vlies flauschig, wird aber gleichzeitig so in die Schrägungsrichtung dieser Flanken verformt, daß es bei dem entstehenden Endprodukt keiner Prägung mehr bedarf, dieses Endprodukt aber trotzdem durch die locker liegenden Fasern und deren Schrägverlauf sowie die in zwei parallelen Ebenen befindlichen Schweißpunkte ein flauschiges und dickes Volumen hat. In vorteilhafter Weise kann somit aus dem Ausgangsprodukt ein relativ dickes flauschiges Endprodukt gebildet werden, ohne daß es nach dem Verfestigen durch Schweißpunktenoch einer zusätzlichen Prägung bedarf.Because the
Claims (7)
- A cylinder arrangement with two cylinders (3, 4) which are oriented parallel with respect to the axis of rotation (2) thereof and serve for fleece (1) or the like to be consolidated between them by means of heat and/or by means of solvents, the cylinders (3, 4) having on the surface thereof an engraving composing welding spots or welding lines and having welding spot faces (5, 6) which follow the cylinder surface and are located at the upper side of individual knops (7, 8) and the knops (7, 8) standing up relative to the cylinder surface proper in spaced relationship to one another and the knops (7, 8) of the one cylinder (3) fitting without contact between those of the other cylinder and in each case the upper side (5, 6) of the knops (7, 8) of the cylinders (3, 4) coming close to or up to the smooth surface (9, 10) of the mating cylinder at the foot of and inbetween the knops thereof, characterized in that the knops (7, 8) of the one cylinder (3) engage between those of the other cylinder with the flanks (13) thereof in each case adjacent to one another, in the position of engagement there being provided between the flanks (13) of the knops (7, 8) of the one cylinder (3) and those of the knops (7, 8) of the other cylinder (4) a space which corresponds at least approximately to the thickness of the fleece (1) and is greater than a gap or space between the upper side (5, 6) of the one knop (7,8) relative to the smooth surface (9, 10) of the mating cylinder, that the flanks (13) of the knops (7, 8) run at an angle for widening the knops (7,8) towards their base (7a, 8a) and that the angles of inclination of the inter-engaging knops (7, 8) of the two cylinders (3,4) are the same in each case and in the respective area of engagement the flanks (13) of the knops (7, 8) of the one cylinder run approximately parallel to the flanks in each case adjacent thereto belonging to the knops of the other cylinder.
- A cylinder arrangement as claimed in claim 1, characterized in that the flank angle of the knops (7, 8) relative to a perpendicular to the cylinder surface (9, 10) is an acute angle of at least 15° to 45°, preferably of about 20° or 30° .
- A cylinder arrangement as claimed in claim 1 or claim 2, characterized in that the knops (7, 8) are configured to be approximately in the shape of a truncated cone or truncated pyramid and are round, oval or rectangular, particularly square, at their base and possibly also ar the upper knop surface.
- A cylinder arrangement as claimed in any one of claims 1 to 3, characterized in that a diagonal through the horizontal projection of the knops (7, 8) is arranged in the circumferential direction of the cylinders (2, 3).
- A cylinder arrangement as claimed in any one of claims 1 to 4, characterized in that to imitate a texture of fabric at the surface of the fleece (1), the surfaces (5, 6) of the knops (7, 8) are elongate and in addition are of the same or different length and possibly have a rounded, circular, angular or oval contour, the greater linear dimension on the one cylinder being oriented at right angles to that on the other cylinder.
- A cylinder arrangement as claimed in claim 5, characterized in that the greater linear dimension of the surfaces (5, 6) of the knops (7, 8) of the one cylinder is oriented parallel to the axis (2) thereof and on the other cylinder is oriented in the circumferential direction.
- A cylinder arrangement as claimed in any one of claims 1 to 6, characterized in that the diagonals of square knops (7, 8) or the greatest linear dimension of elongate knop surfaces are oriented slantwise to the axial direction and slantwise to the circumference of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88121888T ATE76910T1 (en) | 1988-02-13 | 1988-12-30 | ROLLER ARRANGEMENT FOR CONSOLIDATION OF FIBER NON-WOVEN. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3804611A DE3804611A1 (en) | 1988-02-13 | 1988-02-13 | ROLLER ARRANGEMENT FOR STRENGTHENING FLEECE OR THE LIKE. |
| DE3804611 | 1988-02-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0331817A2 EP0331817A2 (en) | 1989-09-13 |
| EP0331817A3 EP0331817A3 (en) | 1990-05-16 |
| EP0331817B1 true EP0331817B1 (en) | 1992-06-03 |
Family
ID=6347415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88121888A Expired - Lifetime EP0331817B1 (en) | 1988-02-13 | 1988-12-30 | Cylinder arrangement for the consolidation of fibre fleeces |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4913911A (en) |
| EP (1) | EP0331817B1 (en) |
| AT (1) | ATE76910T1 (en) |
| CA (1) | CA1276440C (en) |
| DE (2) | DE3804611A1 (en) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383778A (en) * | 1990-09-04 | 1995-01-24 | James River Corporation Of Virginia | Strength control embossing apparatus |
| US5269983A (en) * | 1991-02-04 | 1993-12-14 | James River Corporation Of Virginia | Rubber-to-steel mated embossing |
| US5356364A (en) * | 1991-02-22 | 1994-10-18 | Kimberly-Clark Corporation | Method for embossing webs |
| AU646746B2 (en) * | 1991-02-22 | 1994-03-03 | Kimberly-Clark Worldwide, Inc. | Method for embossing webs |
| DE69210801T2 (en) * | 1992-03-06 | 1996-11-07 | Sommer Sa | Embossed textile product, process for its production and devices therefor |
| FR2700496B1 (en) * | 1993-01-15 | 1995-02-17 | Kaysersberg Sa | Method of embossing a sheet with one or more plies, sheet of embossed paper. |
| USD436738S1 (en) | 1993-03-29 | 2001-01-30 | Fort James Corporation | Embossed paper product |
| US5458950A (en) * | 1993-03-29 | 1995-10-17 | The James River Corporation | Paper towel with dual level diagonal infundibulate striae of slitted elongate hexagonal bosses |
| DE19547319A1 (en) * | 1995-12-19 | 1997-06-26 | Hcd Gmbh | Process for the production of a structured, voluminous fleece |
| DE19725749B4 (en) * | 1995-12-19 | 2004-04-22 | Advanced Design Concepts Gmbh | Embossing process for the production of a structured, voluminous fleece |
| US5954625A (en) * | 1997-06-04 | 1999-09-21 | Industrial Engraving & Manufacturing, Corp. | Method and apparatus for embossing continuous paper webs |
| DE29720192U1 (en) | 1997-11-14 | 1999-03-25 | Eduard Küsters, Maschinenfabrik, GmbH & Co. KG, 47805 Krefeld | Calender for treating a web |
| AU6039698A (en) * | 1998-01-23 | 1999-08-09 | Procter & Gamble Company, The | Method for making a stable nonwoven web having enhanced extensibility in multiple direction |
| US6726870B1 (en) * | 1998-01-23 | 2004-04-27 | The Procter & Gamble Company | Method for making a bulked web |
| USD430734S (en) * | 1998-08-07 | 2000-09-12 | Fort James Corporation | Pattern for an embossed paper product |
| DE19856223B4 (en) * | 1998-12-04 | 2004-05-13 | Advanced Design Concepts Gmbh | Method and device for producing a structured, voluminous nonwoven web or film |
| USD459897S1 (en) | 2000-07-25 | 2002-07-09 | Fort James Corporation | Paper towel |
| DE10156734A1 (en) * | 2001-11-19 | 2003-05-28 | Truetzschler Gmbh & Co Kg | Device for consolidating a conveyable nonwoven fabric |
| US6846172B2 (en) * | 2002-06-07 | 2005-01-25 | The Procter & Gamble Company | Embossing apparatus |
| US7115089B2 (en) * | 2003-02-24 | 2006-10-03 | Rutgers, The State University Of New Jersey | Technology for continuous folding of sheet materials |
| US20050247397A1 (en) * | 2003-09-29 | 2005-11-10 | The Procter & Gamble Company | Process for producing embossed products |
| US7374638B2 (en) * | 2003-09-29 | 2008-05-20 | The Procter & Gamble Company | High bulk strong absorbent single-ply tissue-towel paper product |
| US7314663B2 (en) * | 2003-09-29 | 2008-01-01 | The Procter + Gamble Company | Embossed multi-ply fibrous structure product and process for making same |
| CN101124363A (en) * | 2004-02-17 | 2008-02-13 | 宝洁公司 | Deep-nested embossed paper products |
| US20050247416A1 (en) * | 2004-05-06 | 2005-11-10 | Forry Mark E | Patterned fibrous structures |
| US7413629B2 (en) * | 2004-05-21 | 2008-08-19 | The Procter & Gamble Company | Process for producing deep-nested embossed paper products |
| US7435313B2 (en) * | 2004-05-21 | 2008-10-14 | The Procter & Gamble Company | Process for producing deep-nested embossed paper products |
| US7968025B2 (en) * | 2004-07-29 | 2011-06-28 | Ahlstrom Corporation | Method for manufacturing a particularly soft and three-dimensional nonwoven and nonwoven thus obtained |
| US7669250B2 (en) | 2004-10-14 | 2010-03-02 | Nike, Inc. | Article of apparel incorporating an embossed material |
| US20060141217A1 (en) * | 2004-12-29 | 2006-06-29 | Ellis Clifford J | Deep patterned nonwoven fabrics and method of making them |
| US7597777B2 (en) | 2005-09-09 | 2009-10-06 | The Procter & Gamble Company | Process for high engagement embossing on substrate having non-uniform stretch characteristics |
| US8336117B2 (en) * | 2005-10-19 | 2012-12-25 | Nike, Inc. | Article of apparel with material elements having a reversible structure |
| US20070096366A1 (en) * | 2005-11-01 | 2007-05-03 | Schneider Josef S | Continuous 3-D fiber network formation |
| US11020932B2 (en) | 2017-06-30 | 2021-06-01 | The Procter & Gamble Company | Tip bonded formed laminates of film |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3051608A (en) * | 1958-04-18 | 1962-08-28 | Jack C Gordon | Resilient article and method of manufacture thereof |
| US3616157A (en) * | 1969-08-08 | 1971-10-26 | Johnson & Johnson | Embossed nonwoven wiping and cleaning materials |
| US4005169A (en) * | 1974-04-26 | 1977-01-25 | Imperial Chemical Industries Limited | Non-woven fabrics |
| US4088726A (en) * | 1974-04-26 | 1978-05-09 | Imperial Chemical Industries Limited | Method of making non-woven fabrics |
| GR70771B (en) * | 1978-07-24 | 1983-03-22 | Thprocter & Gamble Company | |
| DE3326281C1 (en) * | 1983-07-21 | 1984-12-20 | Robert Casaretto KG, 7889 Grenzach-Wyhlen | Roller for consolidating fleece or the like |
-
1988
- 1988-02-13 DE DE3804611A patent/DE3804611A1/en active Granted
- 1988-12-30 AT AT88121888T patent/ATE76910T1/en not_active IP Right Cessation
- 1988-12-30 DE DE8888121888T patent/DE3871775D1/en not_active Expired - Lifetime
- 1988-12-30 EP EP88121888A patent/EP0331817B1/en not_active Expired - Lifetime
-
1989
- 1989-02-10 CA CA000590707A patent/CA1276440C/en not_active Expired - Fee Related
- 1989-02-10 US US07/309,381 patent/US4913911A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA1276440C (en) | 1990-11-20 |
| DE3871775D1 (en) | 1992-07-09 |
| DE3804611C2 (en) | 1992-01-23 |
| US4913911A (en) | 1990-04-03 |
| EP0331817A2 (en) | 1989-09-13 |
| EP0331817A3 (en) | 1990-05-16 |
| DE3804611A1 (en) | 1989-08-24 |
| ATE76910T1 (en) | 1992-06-15 |
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