EP0111255A1 - Toilet paper and method and device for producing it - Google Patents

Toilet paper and method and device for producing it Download PDF

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Publication number
EP0111255A1
EP0111255A1 EP83112043A EP83112043A EP0111255A1 EP 0111255 A1 EP0111255 A1 EP 0111255A1 EP 83112043 A EP83112043 A EP 83112043A EP 83112043 A EP83112043 A EP 83112043A EP 0111255 A1 EP0111255 A1 EP 0111255A1
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EP
European Patent Office
Prior art keywords
web
toilet paper
rollers
paper
layer
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
EP83112043A
Other languages
German (de)
French (fr)
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EP0111255B1 (en
Inventor
Horst Dr. BÄHRING
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Individual
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Individual
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Publication date
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Priority to AT83112043T priority Critical patent/ATE36946T1/en
Publication of EP0111255A1 publication Critical patent/EP0111255A1/en
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Publication of EP0111255B1 publication Critical patent/EP0111255B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24215—Acute or reverse fold of exterior component
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24215—Acute or reverse fold of exterior component
    • Y10T428/24223—Embedded in body of web

Definitions

  • the invention relates to toilet paper. This is usually produced as a roll; however, the rolls are cut into pieces of a suitable size for rarer applications.
  • Conventional toilet paper consists of crepe or tissue paper in one or more layers.
  • An essential criterion for the quality of the paper is the tear strength when wet. This strength is inadequate for standard toilet paper. The disadvantages caused by this are obvious and do not require any further explanation.
  • a toilet paper according to the invention in that the toilet paper from one or consists of several individual strips, of which at least one strip has a much greater thickness in the central region than in the edge region, the greater thickness being formed by the material of this strip.
  • the invention further relates to advantageous devices for producing a toilet paper with double folding and devices for performing this method.
  • Fig. 2 shows another way of reinforcing the middle area.
  • the paper layer 4B is pre-applied folded twice on the paper layer 4A, so that the central area has a total of four times the strength as the right edge and twice the thickness as the left edge.
  • the middle region can be strengthened to three times the thickness of the edge region by double folding a web 4. If a double-layered web is used, then, as indicated in FIG. 4, the web 4A can be continued smoothly, whereas the web 4B can be folded twice, so that the central region 2 has twice the thickness as the edge zone.
  • FIG. 5 shows an embodiment that is particularly easy to produce, in which the central region 2 has three folds of thickness as the edge zone due to the double folding of the strips 4A and 4B.
  • the two outer webs 4A and 4B can be carried out smoothly and the middle web 4C can be folded twice and the central region 2 can thereby also be considerably strengthened.
  • the toilet paper contains a continuous, that is not folded, web from the left edge to the right edge. This also ensures good strength in the transverse direction. This strength in the transverse direction can be increased if, as shown in the embodiment according to FIG. 6, both outer webs pass through without folding from right to left.
  • the device for carrying out the multiple folding in the longitudinal direction of the paper web shown in FIG. 7 contains two perpendicular to the paper longitudinal direction AB and perpendicular to each other standing roller pairs 11, 11 'and 12, 12'. Unfolded, the paper web 13 enters the arrangement at the pair of rollers 11, 11 'and, after passing through the pair of rollers 12, 12', leaves the device folded in the longitudinal direction. In order to better illustrate this folding, the surface of the paper 13 in FIG. 7 is covered with a stripe pattern 14. In the space between the roller pairs 11, 11 'and 12, 12', two sheets are provided for paper guidance. The guide plates are not shown in FIG. 7, because they are easier to present. Cuts through the guide plates perpendicular to the paper longitudinal direction AB are shown in FIGS. 8 and 9.
  • Both guide plates 15, 15 ' have the same shape and are arranged at a short distance from one another. They delimit a narrow space 16 in which the paper 13 is guided. As the paper lengthways advances, the shape of both guide plates changes continuously.
  • the guide plates Immediately behind the pair of rollers 11, 11 ', the guide plates have two flat sections 17, 17' (FIG. 8) lying parallel to one another, which continuously merge into curved surfaces with a section according to FIG. 9 immediately in front of the pair of rollers 12, 12 '.
  • the pair of rollers 11, 11 'of the arrangement primarily takes over the advancement of the paper 13, the pair of rollers 12, 12' performs the longitudinal folding in cooperation with the guide plates 15, 15 '.
  • the guide plates 15, 15 in particular facilitate the commissioning of the device. If the device is in operation, it can be at least partially removed.
  • the rollers 12 and 12 ' are expediently formed from three individual rollers 12A, 12B, 12C and 12A', 12B ', 12C', respectively.
  • the roller pairs lying on the two paper edges 18, 18 ' are dimensioned in such a way that they only grasp the single-layer region 19, 19' of the paper 13, the roller pair 12B and 12B 'lying in the middle between these two roller pairs. is dimensioned such that it only covers the three-layer central region 20 of the paper 13.
  • This middle pair of rollers then performs the longitudinal folding, while the other two pairs of rollers lying on the paper edges 18, 18 'perform control functions.
  • a device with paper guide rails is advantageously used, as shown in FIG. 10 and the associated cross sections 10A, 10B, 10C.
  • a wide strip 13 of suitable absorbent paper is inserted into the device from the left and leaves it after passing through the guide rails 15 and 15 1 on the right + nn side with several Z-folds in the longitudinal direction,
  • this wide strip is cut into several narrower strips, each of which has a Z-fold in the longitudinal direction.
  • 10A, 10B and 10C show cross sections of the guide rails along the line A-A ', or B-B', or C-C '.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sanitary Thin Papers (AREA)
  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The invention concerns toilet paper as it is usually manufactured in rolls. Considering that in use the central area of the paper is particularly subject to tearing and strain, the toilet paper of this invention has a central area which is significantly thicker than its edges. The greater thickness in the central area can be achieved, for example, by having normal width or by Z-folding a paper strip such that the overlap created by the Z-fold lies on the longitudinal axis of the strip. A manufacturing method and equipment using rollers and guides particularly suited for the performance of the manufacturing method are described.

Description

Die Erfindung bezieht sich auf Toilettenpapier. Dieses wird üblicherweise als Rollenware hergestellt; doch werden für seltenere Anwendungszwecke die Rollen in Stücke passender Größe geschnitten.The invention relates to toilet paper. This is usually produced as a roll; however, the rolls are cut into pieces of a suitable size for rarer applications.

Toilettenpapier herkömmlicher Art besteht aus Krepp- oder Seidenpapier in einer oder mehreren Lagen. Ein wesentliches Kriterium für die Güte des Papiers ist die Reißfestigkeit in feuchtem Zustand. Bei den handelsüblichen Toilettenpapieren ist diese Festigkeit ungenügend. Die dadurch bedingten Nachteile liegen auf der Hand und bedürfen keiner näheren Erläuterung.Conventional toilet paper consists of crepe or tissue paper in one or more layers. An essential criterion for the quality of the paper is the tear strength when wet. This strength is inadequate for standard toilet paper. The disadvantages caused by this are obvious and do not require any further explanation.

Um diesen Mangel zu beheben, muß der Benutzer mehrere Blätter übereinander falten. Eine Abhilfe wäre auch dadurch möglich, daß bereits bei der Herstellung mehr Lagen, als bisher üblich, verarbeitet würden. Beide Möglichkeiten sind jedoch wegen des erhöhten Papierbedarfs unwirtschaftlich.In order to remedy this deficiency, the user has to fold several sheets over one another. A remedy would also be possible if more layers were processed during production than was previously the case. However, both options are uneconomical due to the increased paper requirement.

Es ist Aufgabe der Erfindung ein Toilettenpapier anzugeben, das bei ausreichender Reißfestigkeit weniger Rohmaterial erfordert.It is an object of the invention to provide a toilet paper that requires less raw material with sufficient tear strength.

Diese Aufgabe wird bei einem Toilettenpapier gemäß der Erfindung dadurch gelöst: daß das Toilettenpapier aus einem oder mehreren einzelnen Streifen besteht, von denen wenigstens ein Streifen im mittleren Bereich eine wesentlich größere Stärke hat als im Randbereich, wobei die größere Stärke durch das Material dieses Streifens gebildet wird.This object is achieved in a toilet paper according to the invention in that the toilet paper from one or consists of several individual strips, of which at least one strip has a much greater thickness in the central region than in the edge region, the greater thickness being formed by the material of this strip.

Hierdurch wird der wesentliche Vorteil erzielt, daß sowohl der im Gebrauch wesentlich höher auf Beanspruchung und Reißfestigkeit beanspruchte mittlere Bereich als auch der weniger hoch beanspruchte Randbereich eine für den Verwendungszweck ausreichende Festigkeit haben, jedoch das Gewicht und die Papiermenge geqenüber der herkömmlichen Ausführungsform mit über die ganze Breite praktisch gleichbleibender Dicke wesentlich verringert wird. Da Toilettenpapier laufend in größerer Menge hergestellt und verbraucht wird, fällt die Ersparnis von etwa 30 % der zur Herstellung erforderlichen Holzmenge wirtschaftlich bedeutend ins Gewicht.This has the essential advantage that both the middle area, which is subject to greater stress and tensile strength in use, and the less highly stressed edge area have sufficient strength for the intended use, but the weight and the amount of paper compared to the conventional embodiment include the whole Width practically constant thickness is significantly reduced. Since toilet paper is continuously produced and consumed in large quantities, the saving of around 30% of the amount of wood required for production is economically significant.

Es ist vorteilhaft, wenn die Verstärkung des mittleren Bereichs durch zweifache Faltung einer Papierbahn erzielt wird.It is advantageous if the reinforcement of the central region is achieved by folding a paper web twice.

Die Erfindung betrifft ferner vorteilhafte Einrichtungen zur Herstellung eines Toilettenpapiers mit doppelter Faltung sowie Vorrichtungen zur Durchführung dieses-Verfahrens.The invention further relates to advantageous devices for producing a toilet paper with double folding and devices for performing this method.

Weitere Fortbildungen und Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet und werden nachstehend in Verbindung mit den Ausführungsbeispiele darstellenden, zum Teil schematisch vereinfachten Figuren beschrieben. In diesen sind einander entsprechende Teile mit gleichen Bezugszeichen versehen, und es sind alle zum Verständnis der Erfindung nicht notwendigen Einzelheiten fortgelassen worden.Further developments and refinements of the invention are characterized in the subclaims and are described below in connection with the exemplary embodiments, partially schematically simplified figures described. In these, corresponding parts are provided with the same reference numerals, and all details which are not necessary for understanding the invention have been omitted.

Es zeigt:

  • Fig. 1 einen Querschnitt durch ein gemäß der Erfindung ausgeführtes Toilettenpapier;
  • Fig. 2 eine weitere Ausführungsform mit einem durch Faltung einer Bahn gebildeten verstärkten mittleren Bereich, im Querschnitt;
  • Fig. 3 eine durch zweifache Faltung einer Papierbahn gebildete Ausführungsform, im Querschnitt; !
  • Fig. 4 eine zweilagige Ausführungsform, bei der eine Bahn doppelt gefaltet ist, im Querschnitt;
  • Fig. 5 eine zweilagige Ausführungsform, bei der beide Bahnen zweimal gefaltet sind, im Querschnitt;
  • Fig. 6 eine dreilagige Ausführungsform, bei der die Mittellage zweimal gefaltet ist, im Querschnitt;
  • Fig. 7 eine zeichnerisch stark vereinfachte Darstellung einer Vorrichtung zur Herstellung von Toilettenpapier, in isometrischer Darstellung;
  • Fis. 8 als konstruktives Detail einen senkrecht zur Transportrichtung entlang der Ebene AB geführten Schnitt durch die leitschiene zur Führung der Papierbahn;
  • Fig. 9 als konstruktives Detail einen senkrecht zur Transportrichtung entlang der Ebene D-D geführten Schnitt durch die Leitschiene zur Führung der Papierbahn;
  • Fig. 10 eine andere Vorrichtung zur Herstellung von Toilettenpapier in Draufsicht;
  • Fig. 10A einen Schnitt durch die Leitschiene zur Führung der Papierbahn entlang der Linie A-A' der Fig.10;
  • Fig. 10B einen Schnitt durch die Leitschiene zur Führung der Papierbahn entlang der Linie B-B' der Fig.10;
  • Fig. 10C einen Schnitt durch die Leitschiene zur Führung der Papierbahn entlang der Linie C-C' der Fig.10.
It shows:
  • 1 shows a cross section through a toilet paper designed according to the invention.
  • 2 shows a further embodiment with a reinforced central region formed by folding a web, in cross section;
  • 3 shows an embodiment formed by double folding a paper web, in cross section; !
  • 4 shows a two-layer embodiment, in which a web is folded twice, in cross section;
  • 5 shows a two-layer embodiment in which both webs are folded twice, in cross section;
  • 6 shows a three-layer embodiment, in which the middle layer is folded twice, in cross section;
  • 7 is a highly simplified representation of an apparatus for producing toilet paper, in an isometric representation;
  • Fi s . 8 as a structural detail, a section through the guide rail for guiding the paper web, which section is made perpendicular to the transport direction along the plane AB;
  • 9 shows, as a constructional detail, a section through the guide rail for guiding the paper web perpendicular to the transport direction along the plane DD;
  • 10 shows another device for producing toilet paper in plan view;
  • 10A shows a section through the guide rail for guiding the paper web along the line AA 'of FIG. 10;
  • 10B shows a section through the guide rail for guiding the paper web along line BB 'of FIG. 10;
  • 10C shows a section through the guide rail for guiding the paper web along line CC 'of FIG. 10.

In Fig. 1 ist das Prinzip der Erfindung dargestellt. Wenn das Papier im mittleren Bereich 2 verstärkt ist, beispielsweise durch entsprechende Steuerung des Herstellungsprozesses der Papierbahn, dann wird in dem besonders beanspruchten mittleren Bereich eine höhere Festigkeit erzielt, während in den beiden Randzonen 3 auch eine geringere Stärke bereits für die dort auftretende Beanspruchung ausreichend ist. Gegenüber einer.Ausführung herkömmlicher Art, welche über den ganzen Querschnitt die gleiche Stärke besitzt, wird eine erhebliche Papierersparnis erreicht, die über 30% betragen kann. Hierdurch wird der Holzbedarf zur Herstellung des in sehr großen Mengen erzeugten Toilettenpapiers wesen lich verringert.1 shows the principle of the invention. If the paper is reinforced in the central area 2, for example by correspondingly controlling the manufacturing process of the paper web, then a higher strength is achieved in the particularly stressed central area, while a lower thickness in the two edge zones 3 is already sufficient for the stress occurring there . Compared to a conventional design, which has the same thickness over the entire cross-section, considerable paper savings can be achieved, which can be over 30%. As a result, the wood requirement for producing the toilet paper produced in very large quantities is essentially reduced.

Fig. 2 zeigt eine andere Möglichkeit zur Verstärkung des mittleren Bereichs. Die Papierlage 4B wird vordem Aufbringen auf die Papierlage 4A zweimal gefaltet, so daß der mittlere Bereich insgesamt viermal größere S tärke hat wie der rechte Rand und doppelte Stärke wie der linke Rand.Fig. 2 shows another way of reinforcing the middle area. The paper layer 4B is pre-applied folded twice on the paper layer 4A, so that the central area has a total of four times the strength as the right edge and twice the thickness as the left edge.

Eine Verstärkung des mittleren Bereichs auf die dreifache Stärke des Randbereichs ist, wie aus Fig. 3 zu ersehen, durch doppelte Faltung einer Bahn 4 möglich. Wird eine doppellagige Bahn verwendet, dann kann, wie in Fig. 4 angedeutet, die Bahn 4A glatt weitergeführt, hingegen die Bahn 4B zweimal gefaltet werden, so daß der mittlere Bereich 2 die doppelte Stärke besitzt wie die Randzone.As can be seen from FIG. 3, the middle region can be strengthened to three times the thickness of the edge region by double folding a web 4. If a double-layered web is used, then, as indicated in FIG. 4, the web 4A can be continued smoothly, whereas the web 4B can be folded twice, so that the central region 2 has twice the thickness as the edge zone.

Fig. 5 zeigt eine besonders einfach herzustellende Ausführungsform, bei welcher der mittlere Bereich 2 durch doppelte Faltung der Streifen 4A und 4B die dreifache Stärke besitzt wie die Randzone.FIG. 5 shows an embodiment that is particularly easy to produce, in which the central region 2 has three folds of thickness as the edge zone due to the double folding of the strips 4A and 4B.

Wird eine dreilagige Bahn zur Herstellung des Toilettenpapiers vorgesehen, so können, wie in Fig. 6 angedeutet, die beiden äußeren Bahnen 4A und 4B glatt durchgeführt werden und die mittlere Bahn 4C zweimal gefaltet werden und dadurch der mittlere Bereich 2 ebenfalls erheblich verstärkt werden.If a three-layer web is provided for the production of the toilet paper, then, as indicated in FIG. 6, the two outer webs 4A and 4B can be carried out smoothly and the middle web 4C can be folded twice and the central region 2 can thereby also be considerably strengthened.

Bei den Ausführungsformen gemäß Fig. 2 und 4 enthält das Toilettenpapier eine vom linken Rand zum rechten Rand durchgehende, also nicht gefaltete Bahn. Dadurch wird auch in Querrichtung eine gute Festigkeit gewährleistet. Diese Festigkeit in Querrichtung kann noch erhöht werden, wenn, wie in der Ausführungsform nach Figur 6 gezeigt, beide Außenbahnen ohne Faltung von rechts nach links durchlaufen.In the embodiments according to FIGS. 2 and 4, the toilet paper contains a continuous, that is not folded, web from the left edge to the right edge. This also ensures good strength in the transverse direction. This strength in the transverse direction can be increased if, as shown in the embodiment according to FIG. 6, both outer webs pass through without folding from right to left.

Die in Fig. 7 dargestellte Vorrichtung zur Durchführung der Mehrfachfaltung in Längsrichtung der Papierbahn enthält zwei senkrecht zur Papierlängsrichtung AB und senkrecht zueinander stehende Walzenpaare 11, 11' und 12, 12'. Die Papierbahn 13 tritt ungefaltet bei Walzenpaar 11, 11' in die Anordnung ein und verläßt nach Durchtritt durch das Walzenpaar 12, 12' in Längsrichtung gefaltet die Vorrichtung. Um diese Faltung besser darstellen zu können, ist die Oberfläche des Papiers 13 in Fig. 7 mit einem Streifenmuster 14 überzogen. Im Raum zwischen den Walzenpaaren 11, 11' und 12, 12' sind zwei Bleche zur Papierführung vorgesehen. Die Führungsbleche sind in Fig. 7, der einfacheren Darstellbarkeit wegen, nicht eingezeichnet. Schnitte durch die Führungsbleche senkrecht zur Papierlängsrichtung AB sind in den Fig. 8 und 9 wiedergegeben.The device for carrying out the multiple folding in the longitudinal direction of the paper web shown in FIG. 7 contains two perpendicular to the paper longitudinal direction AB and perpendicular to each other standing roller pairs 11, 11 'and 12, 12'. Unfolded, the paper web 13 enters the arrangement at the pair of rollers 11, 11 'and, after passing through the pair of rollers 12, 12', leaves the device folded in the longitudinal direction. In order to better illustrate this folding, the surface of the paper 13 in FIG. 7 is covered with a stripe pattern 14. In the space between the roller pairs 11, 11 'and 12, 12', two sheets are provided for paper guidance. The guide plates are not shown in FIG. 7, because they are easier to present. Cuts through the guide plates perpendicular to the paper longitudinal direction AB are shown in FIGS. 8 and 9.

Beide Führungsbleche 15, 15' haben die gleiche Form und sind in geringem Abstand voneinander angeordnet. Sie begrenzen einen schmalen Zwischenraum 16, in dem das Papier 13 geführt wird. Beim Fortschreiten in Papierlängsrichtung ändert sich die Form beider Führungsbleche kontinuierlich. Unmittelbar hinter dem Walzenpaar 11, 11' weisen die Führungsbleche zwei parallel zueinander liegende ebene Abschnitte 17, 17' auf (Fig. 8), die kontinuierlich übergehen in gekrümmte Flächen mit einem Schnitt nach Fig. 9 unmittelbar vor dem Walzenpaar 12, 12'. Das Walzenpaar 11, 11' der Anordnung übernimmt vorrangig den Vorschub des Papiers 13, das Walzenpaar 12, 12' führt in Zusammenwirkung mit den Führungsblechen 15, 15' die Längsfaltung durch.Both guide plates 15, 15 'have the same shape and are arranged at a short distance from one another. They delimit a narrow space 16 in which the paper 13 is guided. As the paper lengthways advances, the shape of both guide plates changes continuously. Immediately behind the pair of rollers 11, 11 ', the guide plates have two flat sections 17, 17' (FIG. 8) lying parallel to one another, which continuously merge into curved surfaces with a section according to FIG. 9 immediately in front of the pair of rollers 12, 12 '. The pair of rollers 11, 11 'of the arrangement primarily takes over the advancement of the paper 13, the pair of rollers 12, 12' performs the longitudinal folding in cooperation with the guide plates 15, 15 '.

Die Führungsbleche 15, 15' erleichtern insbesondere das Inbetriebsetzen der Vorrichtung. Bei einer in Gang befindlichen Vorrichtung können sie zumindest teilweise wieder entfernt werden.The guide plates 15, 15 'in particular facilitate the commissioning of the device. If the device is in operation, it can be at least partially removed.

In einer technischen Ausführung der Vorrichtung werden die Walzen 12 und 12' zweckmäßig aus je drei Einzelwalzen 12A, 12B, 12C bzw. 12A', 12B', 12C', ausgebildet. Die an den beiden Papierrändern 18, 18' liegenden Walzenpaare werden dabei so in ihrer Länge ..bemessen, daß sie nur den einlagigen Bereich 19, 19' des Papiers 13 erfassen, das in der Mitte zwischen diesen beiden Walzenpaaren liegende Walzenpaar 12B und 12B' wird so bemessen, daß es nur den dreilagigen mittleren Bereich 20 des Papiers 13 erfaßt. Dieses mittlere Walzenpaar führt dann die Längsfaltung durch, während die beiden anderen, an den Papierrändern 18, 18' liegenden Walzenpaare Steuerfunktionen übernehmen. In Zusammenwirken mit den in Fig. 7 angedeuteten, die Ränder 18, 18' des Papiers 13 abtastenden Sensoren 21, 21' kann man dann durch leichtes Verschwenken dieser Steuerwalzen 12A, 12C bzw. 12A', 12C' in Richtung der Pfeile 22 aus ihrer Normallage heraus die Breite des einlagigen Papierbereichs 19, 19' bei Bedarf nachregeln.In a technical embodiment of the device, the rollers 12 and 12 'are expediently formed from three individual rollers 12A, 12B, 12C and 12A', 12B ', 12C', respectively. The roller pairs lying on the two paper edges 18, 18 'are dimensioned in such a way that they only grasp the single-layer region 19, 19' of the paper 13, the roller pair 12B and 12B 'lying in the middle between these two roller pairs. is dimensioned such that it only covers the three-layer central region 20 of the paper 13. This middle pair of rollers then performs the longitudinal folding, while the other two pairs of rollers lying on the paper edges 18, 18 'perform control functions. In cooperation with the sensors 21, 21 'indicated in FIG. 7, which scan the edges 18, 18' of the paper 13, one can then easily swivel these control rollers 12A, 12C or 12A ', 12C' in the direction of the arrows 22 from them Adjust the normal position out of the width of the single-layer paper area 19, 19 'if necessary.

Durch geeignete Formgebung der Führungsbleche 15 und 15' erreicht man, je nach beabsichtigtem Verwendungszweck, anstelle der im Ausführungsbeispiel der Vorrichtung nach Fig. 7 angegebenen Zweifachfaltung auch andere Faltungen, beispielsweise eine Vierfachfaltung.By suitable shaping of the guide plates 15 and 15 ', depending on the intended use, other folds, for example a quadruple fold, are achieved instead of the double fold indicated in the exemplary embodiment of the device according to FIG. 7.

Für die Herstell ung verschiedener spezieller Arten von Toilettenpapier, insbesondere für die Faltung, beispielsweise Doppel - Z - Faltung oder für die Herstellung von parallelen Längsfalten des Papierstreifens, wird mit Vorteil eine Vorrichtung mit Papierleitschienen verwendet, wie sie in Fig. 10 und den zugehörigen Querschnitten 10A, 10B, 10C dargestellt ist. In dieser Vorrichtung wird ein breiter Streifen 13 aus geeignetem saugfähigem Papier von links in die Vorrichtung eingeführt und verläßt diese nach Durchlaufen der Leitschienen 15 und 151 auf der rech+nn Seite mit mehreren Z-Faltungen in Längsrichtung,For the production of various special types of toilet paper, in particular for folding, for example double-Z folding or for the production of parallel longitudinal folds of the paper strip, a device with paper guide rails is advantageously used, as shown in FIG. 10 and the associated cross sections 10A, 10B, 10C. In this device, a wide strip 13 of suitable absorbent paper is inserted into the device from the left and leaves it after passing through the guide rails 15 and 15 1 on the right + nn side with several Z-folds in the longitudinal direction,

Um aus diesem Streifen Toilettenpapier üblicher Art herzustellen, wird dieser breite Streifen im mehrere schmälere Streifen geschnitten, deren jeder eine Z-Faltung in Längsrichtung hat. In Fig. 10A, 10B und 10C zeigen Querschnitte die Leitschienen entlang der Linie A-A', bzw. B-B', bzw. C-C'.In order to produce toilet paper of the usual type from this strip, this wide strip is cut into several narrower strips, each of which has a Z-fold in the longitudinal direction. 10A, 10B and 10C show cross sections of the guide rails along the line A-A ', or B-B', or C-C '.

Claims (16)

1. Toilettenpapier, bestehend aus nur einer oder aus mehreren aufeinanderliegenden Bahnen Papier, dadurch gekennzeichnet , daß wenigstens eine Bahn im mittleren Bereich des Toilettenpapiers eine durch das Material dieser Bahn bewirkte größere Dicke hat.1. Toilet paper, consisting of only one or more sheets of paper lying on top of one another, characterized in that at least one sheet in the central region of the toilet paper has a greater thickness caused by the material of this sheet. 2. Toilettenpapier nach Anspruch 1, dadurch gekennzeichnet, daß der mittlere Bereich (2) eine um wenigstens 30 % größere Stärke als der Randbereich hat.2. Toilet paper according to claim 1, characterized in that the central region (2) has at least 30% greater thickness than the edge region. 3. Toilettenpapier nach Anspruch 1 und 2, dadurch gekennzeichnet, daß es aus einzelnen, vorzugsweise entlang Perforationen oder anderen Verbindungsmitteln zusammenhängenden Blättern besteht.3. Toilet paper according to claim 1 and 2, characterized in that it consists of individual sheets, preferably connected along perforations or other connecting means. 4. Toilettenpapier nach Anspruch 1, 2 und 3, dadurch gekennzeichnet, daß der Bereich größerer Dicke einen durch Faltung gebildeten, vorzugsweise streifenförmigen Teil einer Papierbahn aufweist.4. toilet paper according to claim 1, 2 and 3, characterized in that the region of greater thickness has a fold-formed, preferably strip-shaped part of a paper web. 5. Toilettenpapier nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die zusätzliche Lage zwischen zwei äußeren Lagen (4A, 4B) angeordnet ist (Figur 2, Figur 6).5. Toilet paper according to claim 3 or 4, characterized in that the additional layer between two outer layers (4A, 4B) is arranged (Figure 2, Figure 6). 6. Toilettenpapier nach Anspruch 5, dadurch qekennzeichnet, daß der zwischen den äußeren Lagen (4A, 4B) befindliche Streifen (5) mit einer äußeren Lage (4B) einstückig im Material verbunden ist (Figur 2).6. Toilet paper according to claim 5, characterized in that the strip (5) located between the outer layers (4A, 4B) with egg ner outer layer (4B) is integrally connected in the material (Figure 2). 7. Toilettenpapier nach Anspruch 6, dadurch gekennzeichnet, daß der mittlere Streifen (5) an seinen gefalteten Begrenzungen mit der die Randzone bildenden Papierlage (4) einstückig im Material verbunden ist (Figur 3).7. toilet paper according to claim 6, characterized in that the central strip (5) is integrally connected at its folded boundaries with the paper layer forming the edge zone (4) in the material (Figure 3). 8. Toilettenpapier nach Anspruch 1, dadurch gekennzeichnet, daß der mittlere Bereich (2) als doppellagige Papierschicht ausgebildet ist, die an einer Längsseite durch die äußere Kante einer Längsfaltung der Bahn begrenzt ist und an der anderen Längsseite eben in eine einstückig im Material verbundene Außenbahn bzw. über eine Faltung in einen Teil dieser Außenbahn übergeht (Figur 4).8. Toilet paper according to claim 1, characterized in that the central region (2) is designed as a double-layer paper layer which is delimited on one long side by the outer edge of a longitudinal fold of the web and on the other long side just in an outer web integrally connected in the material or merges into part of this outer web via a fold (FIG. 4). 9. Toilettenpapier nach Anspruch 1, dadurch gekennzeichnet, daß es aus einer doppellagigen Bahn besteht und der zur Verstärkung vorgesehene mittlere Streifen (5) ebenfalls doppellagig ist und jede Lage des mittleren Streifens (5) beidseitig mit je einer der die Randzonen (3) bildenden Bahnen (4A, 4B) einstückig im Material verbunden ist (Figur 5).9. Toilet paper according to claim 1, characterized in that it consists of a double-layered web and the central strip (5) provided for reinforcement is also double-layered and each layer of the central strip (5) on both sides with one of the edge zones (3) Lanes (4A, 4B) is integrally connected in the material (Figure 5). 10. Toilettenpapier nach Anspruch 1, dadurch gekennzeichnet, daß es aus einer aus drei Lagen (4A, 4B, 4C) gebildeten Bahn besteht und der verstärkte mittlere Bereich (2) durch drei aufeinanderliegend gefaltete Zonen der mittleren Lage gebildet ist (Figur 6).10. Toilet paper according to claim 1, characterized in that it consists of a web formed from three layers (4A, 4B, 4C) and the reinforced central region (2) is formed by three zones of the middle layer folded onto one another (FIG. 6). 11. Verfahren zum Herstellen von Toilettenpapier nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß eine Papierbahn zweimal in zwei beiderseits im Abstand von der Mittellinie des fertigen Produktes liegenden Bereichen in Längsrichtung um 180 derart gefaltet wird, daß beide Faltungen im gleichen Sinn verlaufen.11. A method for producing toilet paper according to one of claims 1 to 10, characterized in that a paper web is folded twice in two on both sides at a distance from the center line of the finished product in the longitudinal direction by 180 such that both folds run in the same sense . 12. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Faltung mittels Walzen erfolgt.12. The method according to claim 1, characterized in that the folding takes place by means of rollers. 13. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß eine aus zwei Lagen bestehende Bahn gefaltet wird.13. The method according to claim 11, characterized in that a web consisting of two layers is folded. 14. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß sie aus zwei von der Bahn nacheinander durchlaufenden, mit ihren Achsen senkrecht zueinander stehenden Walzenpaaren (11, 11' bzw. 12, 121) besteht, zwischen denen vorzugsweise als Leitschienen ausgeführte Falzvorrichtungen angeordnet sind, welche den auf einer Seite der Mittellinie (AB) liegenden Randbereich der Bahn in einer zur Walzenrichtung der ersten Walzen (11, 11') senkrechten Richtung verschieben und den anderen, auf der anderen Seite der Mittellinie (AB) der Bahn liegenden Randbereich in entgegengesetzte Richtung verschieben (Figur 9).14. An apparatus for performing the method according to any one of claims 10 to 12, characterized in that it consists of two pairs of rollers (11, 11 'and 12, 12 1 ) passing through one after the other from the web and perpendicular to one another, between which are preferably arranged as guide rails, which shift the edge area of the web lying on one side of the center line (AB) in a direction perpendicular to the roll direction of the first rolls (11, 11 ') and the other, on the other side of the center line ( AB) move the edge area of the web in the opposite direction (Figure 9). 15. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß jede Walze des zweiten Walzenpaares (12, 12') vorzugsweise aus drei Teilwalzen (12A, 12B, 12C bzw. 12A', 12B', 12C') besteht und die Achsen der äußeren Walzen (12A, 12C bzw. 12A', 12C') wahlweise in Richtung der Transportbewegung der Bahn und entgegen dieser Richtung verschwenkbar angeordnet sind (Pfeile 22).15. The apparatus according to claim 14, characterized in that each roller of the second pair of rollers (12, 12 ') preferably consists of three partial rollers (12A, 12B, 12C or 12A', 12B ', 12C') and the axes of the outer rollers (12A, 12C or 12A ', 12C') are optionally arranged to be pivotable in the direction of the transport movement of the web and counter to this direction (arrows 22). 16. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß nach dem zweiten Walzenpaar (12, 12') Sensoren vorgesehen sind, welche die Breite der das zweite Walzenpaar (12, 121) verlassenden-Papierbahn überwachen und bei überschreiten der vorgesehenen Breite der gewalzten Bahn die Achsen der äußeren Teilwalzen (12A, 12C bzw. 12A', 12C') derart verschwenken, daß die äußeren Enden der äußeren Teilwalzen relativ zu den inneren Enden dieser äußeren Teilwalzen in Transportrichtung verschoben werden und bei Unterschreiten der vorgegebenen Breite entgegen der Transportrichtung verschoben werden.16. The apparatus according to claim 15, characterized in that after the second pair of rollers (12, 12 ') sensors are provided which monitor the width of the second roller pair (12, 12 1 ) leaving-paper web and exceed the intended width of the rolled Track pivot the axes of the outer sub-rollers (12A, 12C or 12A ', 12C') such that the outer ends of the outer sub-rollers are displaced relative to the inner ends of these outer sub-rollers in the transport direction and shifted against the transport direction when the specified width is undershot will.
EP83112043A 1982-12-03 1983-12-01 Toilet paper and method and device for producing it Expired EP0111255B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112043T ATE36946T1 (en) 1982-12-03 1983-12-01 TOILET PAPER AND METHOD AND APPARATUS FOR ITS MANUFACTURE.

Applications Claiming Priority (2)

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DE3244721 1982-12-03
DE3244721A DE3244721C2 (en) 1982-12-03 1982-12-03 Toilet paper and method and apparatus for its manufacture

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EP0111255A1 true EP0111255A1 (en) 1984-06-20
EP0111255B1 EP0111255B1 (en) 1988-09-07

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EP (1) EP0111255B1 (en)
AT (1) ATE36946T1 (en)
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EP0823391A2 (en) * 1996-08-09 1998-02-11 BIELOMATIK LEUZE GmbH + Co. Device for the treatment of ply-material, particularly for the folding of paper

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US8147473B2 (en) * 2005-02-17 2012-04-03 The Procter & Gamble Company Folded fibrous structures
ITMI20060144A1 (en) * 2006-01-27 2007-07-28 Paper Converting Machine Co DEVICE AND METHOD OF IRRIGIDATION OF A TAPE INTENDED TO BE WRAPPED IN LOG
WO2009076160A1 (en) * 2007-12-06 2009-06-18 The Procter & Gamble Company A display assembly of folded rolled paper products
US20100038265A1 (en) * 2007-12-06 2010-02-18 Noel Mathey Geoffroy Display assembly of folded rolled paper products
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EP0823391A2 (en) * 1996-08-09 1998-02-11 BIELOMATIK LEUZE GmbH + Co. Device for the treatment of ply-material, particularly for the folding of paper
EP0823391A3 (en) * 1996-08-09 1998-11-11 BIELOMATIK LEUZE GmbH + Co. Device for the treatment of ply-material, particularly for the folding of paper

Also Published As

Publication number Publication date
EP0111255B1 (en) 1988-09-07
DE3244721A1 (en) 1984-06-07
ATE36946T1 (en) 1988-09-15
DE3244721C2 (en) 1985-09-19
US4582743A (en) 1986-04-15

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