EP0980926A1 - Compressed nonwoven wipe and method for its production - Google Patents

Compressed nonwoven wipe and method for its production Download PDF

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Publication number
EP0980926A1
EP0980926A1 EP99115287A EP99115287A EP0980926A1 EP 0980926 A1 EP0980926 A1 EP 0980926A1 EP 99115287 A EP99115287 A EP 99115287A EP 99115287 A EP99115287 A EP 99115287A EP 0980926 A1 EP0980926 A1 EP 0980926A1
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EP
European Patent Office
Prior art keywords
nonwoven
nonwoven fabric
compressed
cloths
compression
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
EP99115287A
Other languages
German (de)
French (fr)
Other versions
EP0980926B2 (en
EP0980926B1 (en
Inventor
Michael Holtmann
Werner Haag
Waldemar Pawlowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imeco GmbH and Co KG
Original Assignee
Imeco Einwegprodukte GmbH and Co KG
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Publication date
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/28—Presses specially adapted for particular purposes for forming shaped articles
    • 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
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series

Definitions

  • the invention relates to compressed nonwoven wipes as well a process for their manufacture.
  • Nonwoven wipes are known as such and are used, for example widely used as cosmetic wipes.
  • the known nonwoven wipes it is disadvantageous that this has a relatively large volume in stockpiling ingest, resulting in a relatively large packaging and Warehousing leads.
  • the present invention is therefore based on the object To create nonwoven wipes that are in stockpiling take up relatively small volume, as well as a procedure specify their manufacture, the inexpensive to do is.
  • the task is related to the manufacturing process of the nonwoven cloths by the features of claim 1 and with regard to the nonwoven cloths by the characteristics of Claim 7 solved.
  • the invention is based on the knowledge that through introduction the nonwoven cloths in a compression form and then compressing the nonwoven cloths can achieve particularly high packing density. This is done the compression of the nonwoven wipes according to the invention such a high compression pressure that the nonwoven cloths not by itself, but only after one De-moisten with a liquid.
  • the Nonwoven wipes can therefore be packaged in a high density be packed and stored in a space-saving manner. First immediately before using the nonwoven wipes again by moistening it with a liquid unfolded. By moistening the non-woven cloths decompressed again so that it is essentially of develop themselves or at least without major ones Let difficulties unfold.
  • Claims 2 to 6 relate to advantageous developments of the method according to the invention.
  • the nonwoven fabric is advantageous according to claim 2 a supply roll and can be drawn in an endless process to be edited.
  • Non-woven wipes for example face masks
  • a suitable application for example a punching tool or a cutting tool.
  • the nonwoven cloths are preferred according to claim 4 by a plunger into the compression mold introduced and according to claim 5 in the dry Condition condensed.
  • Claims 8 to 11 relate to advantageous ones Developments of the nonwoven fabric according to the invention.
  • the nonwoven fabric can have the shape according to claim 8 have a face mask. There are two eye openings and a mouth opening provided from the nonwoven cloth are separated out. Furthermore, according to claim 9 a nasal perforation can be provided which is a nasal lobe separates from the main part of the nonwoven fabric, the Nose lobes when wearing the face mask on the nose like this rests that the nostrils are exposed. It is advantageous according to claim 10, the nasal perforation to be interrupted by two webs, which can be used without further can be separated. It has been shown that the processing of the nonwoven fabric in particular in the Process step of compacting through these webs is relieved.
  • the nonwoven fabric preferably consists according to claim 11 made of a fibrous material, for example viscose and / or polypropylene and / or polyester and / or cellulose. According to a preferred embodiment the non-woven cloth made of 100% viscose.
  • the nonwoven fabric 1 is first of deducted a rotatably suspended supply roll 2 and a folding device 3 supplied. With the nonwoven it is a fibrous material.
  • the nonwoven fabrics according to the invention in a particularly preferred embodiment from 100% Viscose exist. In principle, however, any is suitable fibrous, at least to a small extent absorbent material.
  • the nonwoven web 10 is on the folding device 3 folded in the middle, which is illustrated by the arrow 4 is.
  • a folding shoulder 5 is used can of course also be arranged vertically.
  • the Nonwoven web 10 can also be folded several times to enable multi-layer processing.
  • the Fabric panels are smoothed by guide rollers 6 and 7 and fixed to each other before being punched 8 be fed.
  • the punching device 8 comprises a punching tool 9 made of the two-layer nonwoven web 10 in the embodiment Non-woven cloths 11 punched out in the desired shape.
  • the illustrated embodiment is the Nonwoven wipes 11 around a face mask shown in FIG. 1 for better illustration in the unfolded state is shown, although after punching it out around her The axis of symmetry is simply folded.
  • the punch 9 comprises only one half of symmetry of the nonwoven fabric 11 to be punched out, the axis of symmetry 12 of the nonwoven cloth 11 or the face mask with the folded edge 13 of the two-layer nonwoven web coincides. This has the advantage that the punching out with a high manufacturing effectiveness and at the same time the nonwoven cloth 11 before the compression to be described is already pre-folded.
  • the Nonwoven wipes 11 or the face masks, however unfolded from the nonwoven or the multilayer nonwoven web 10 are punched out.
  • a multilayer Nonwoven web 10 would have the advantage that with each Punching process of several nonwoven cloths or face masks 11 are punched, which also leads to high manufacturing effectiveness leads.
  • the nonwoven cloths 11 or in the embodiment Face masks can, for example, by means of a conveyor belt 14 are removed after punching.
  • nonwoven cloths 11 from the nonwoven web 10 to apply by punching can also be, for example Ultrasonic cutting, thermal cutting with one Heating wire or the like can be used.
  • FIG. 2A and 2B illustrate the process step compressing the nonwoven cloths 11.
  • Fig. 2A process step shown Nonwoven cloths 11 introduced into a compression mold 20.
  • this is done using a plunger 21, which when inserted into the Compression 20 takes the nonwoven cloth 11 and in the Compression form 20 brings.
  • It is preferably located Nonwoven cloth 11 contrary to the illustration in Fig. 2A at Insert into the compression mold 20 in one order Axis of symmetry 12 simply folded state what that Introducing into the compression mold 20 facilitated.
  • the Nonwoven cloth can also be placed in the Compression form 20 can be folded and defined multiple times another defined folded position in the compression form 20 be introduced if this is advantageous in individual cases.
  • the introduction into the compression mold 20 can also be done by other measures, for example by means of suction a negative pressure.
  • a Insertion piston 21 is the diameter of the insertion piston 21 compared to the diameter of the compression mold smaller to avoid jamming of the nonwoven fabric 11 between the wall of the compression mold 20 and the Avoid insertion piston 21. When inserting arises a random multiple folding of the nonwoven cloth 11.
  • the compression takes place in the compression form 20 nonwoven fabric 11 located Compression piston 22 introduced into the compression mold 20 and applied with a high compression pressure.
  • Advantageous are in the compression form 20 or in the compression piston 22 one or more holes to escape the enclosed Air provided.
  • This is done according to the invention Compacting the nonwoven cloths 11 under such a high Compression pressure at a given given Temperature that the nonwoven cloths 11 are not itself, but only after moistening with a Can unfold liquid again.
  • a compression pressure of more than 20 bar, preferably more than 50 bar, required if the non-woven cloths are made of 100% viscose.
  • the fibers of the nonwoven fabric are then ready after this compression networked with each other that the nonwoven cloths in cannot unfold dry again by itself.
  • the compression form 20 has a round cross section, so that the nonwoven cloths 11 into a tablet-like shape be compressed.
  • 2C is a nonwoven cloth 11 in shown in a compressed, tablet-shaped state. These tablet-shaped non-woven wipes are, for example can be packed in tablet tubes.
  • Fig. 3 shows an enlarged view of an embodiment an unfolded nonwoven cloth 11 in Shape of a face mask.
  • a punch 8 from which has the shape of a human face Face mask two eye openings 24 and one mouth opening 25 punched out.
  • There is also a nose perforation 26 die-cut a nasal lobe 27 from the body 28 of the Face mask separates.
  • the nasal lobe 27 is over a Connection 29 and two webs 30 with the main part 28 of the Face mask connected.
  • the webs 30 serve the Further processing after punching, especially that To facilitate insertion into the compression mold 20.
  • the Bridges 30 can in the damp state can be severed easily, so that when using the face mask of the nasal lobes 26 rests on the nose and releases the nostrils.
  • the Eye openings 24, mouth opening 25 and the nasal perforation 26 can also be created with a cutting tool.
  • Unfolding the nonwoven cloths compressed according to the invention 11 can, for example, by means of water, however by means of any other liquid or pharmaceutical or cosmetic solution.
  • the invention is not based on the illustrated embodiment limited. This is particularly suitable Methods according to the invention also for producing compressed nonwoven wipes in a different form, from others Materials and for other uses.

Abstract

The nonwoven disposable tissues (11) are produced from a nonwoven web in stamped or cut outline shapes. The cut or stamped sections are compressed in a compressing mold (20) by a compression piston (22) working at a high pressure. The compressed tissue remains in a compact structure, and only opens out when wetted with a fluid. The nonwoven material is drawn from a supply roll. Where axially symmetrical tissues are to be produced, the material is folded along the center and moved to give only one symmetrical half to view. The tissue section is forced into the mold (20) by a piston (21), and compressed while dry. Or the material can be compressed while wet, to be dried during or after the compression stage. An Independent claim is included for a disposable tissue (11) in the form of a face mask, with openings cut out for the eyes, nose and mouth. Preferred Features: The nose opening can be interrupted by two bars.

Description

Die Erfindung betrifft komprimierte Vliesstofftücher sowie ein Verfahren zu deren Herstellung.The invention relates to compressed nonwoven wipes as well a process for their manufacture.

Vliesstofftücher sind als solches bekannt und werden beispielsweise als kosmetische Reinigungstücher vielfältig eingesetzt. Bei den bekannten Vliesstofftüchern ist nachteilig, daß diese bei der Bevorratung ein relativ großes Volumen einnehmen, was zu einem relativ großen Verpackungs- und Lagerhaltungsaufwand führt.Nonwoven wipes are known as such and are used, for example widely used as cosmetic wipes. In the known nonwoven wipes it is disadvantageous that this has a relatively large volume in stockpiling ingest, resulting in a relatively large packaging and Warehousing leads.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, Vliesstofftücher zu schaffen, die bei der Bevorratung ein relativ geringes Volumen einnehmen, sowie ein Verfahren zu deren Herstellung anzugeben, das kostengünstig ausführbar ist.The present invention is therefore based on the object To create nonwoven wipes that are in stockpiling take up relatively small volume, as well as a procedure specify their manufacture, the inexpensive to do is.

Die Aufgabe wird hinsichtlich des Verfahrens zur Herstellung der Vliesstofftücher durch die Merkmale des Anspruchs 1 und hinsichtlich der Vliesstofftücher durch die Merkmale des Anspruchs 7 gelöst.The task is related to the manufacturing process of the nonwoven cloths by the features of claim 1 and with regard to the nonwoven cloths by the characteristics of Claim 7 solved.

Der Erfindung liegt die Erkenntnis zugrunde, daß durch Einbringen der Vliesstofftücher in eine Komprimierform und anschließendes Verdichten der Vliesstofftücher sich eine besonders hohe Packungsdichte erreichen läßt. Dabei erfolgt das Verdichten der Vliesstofftücher erfindungsgemäß unter einem derart hohen Kompressionsdruck, daß sich die Vliesstofftücher nicht von selbst, sondern erst nach einem Befeuchten mit einer Flüssigkeit wieder entfalten. Die Vliesstofftücher können daher in einer hohen Packungsdichte platzsparend verpackt und bevorratet werden. Erst unmittelbar vor der Benutzung der Vliesstofftücher werden diese durch ein Befeuchten mit einer Flüssigkeit wieder entfaltet. Durch das Befeuchten werden die Vliesstofftücher wieder dekomprimiert, so daß sie sich im wesentlichen von selbst entfalten oder sich zumindest ohne größere Schwierigkeiten entfalten lassen.The invention is based on the knowledge that through introduction the nonwoven cloths in a compression form and then compressing the nonwoven cloths can achieve particularly high packing density. This is done the compression of the nonwoven wipes according to the invention such a high compression pressure that the nonwoven cloths not by itself, but only after one De-moisten with a liquid. The Nonwoven wipes can therefore be packaged in a high density be packed and stored in a space-saving manner. First immediately before using the nonwoven wipes again by moistening it with a liquid unfolded. By moistening the non-woven cloths decompressed again so that it is essentially of develop themselves or at least without major ones Let difficulties unfold.

Die Ansprüche 2 bis 6 betreffen vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens.Claims 2 to 6 relate to advantageous developments of the method according to the invention.

Der Vliesstoff wird entsprechend Anspruch 2 vorteilhaft von einer Vorratsrolle abgezogen und kann in einem Endlosverfahren bearbeitet werden. Zum Herstellen von axialsymmetrischen Vliesstofftüchern, beispielsweise Gesichtsmasken, ist es entsprechend Anspruch 3 vorteilhaft, den Vliesstoff mittig zu falten und die Vliesstofftücher mittels eines Ausbringzeugs auszubringen, das nur eine Symmetriehälfte des Vliesstofftuchs umfaßt. Auf diese Weise wird bei einer rationellen Fertigung eine hohe Symmetriegenauigkeit der Vliesstofftücher erreicht. Als Ausbringzeug eignet sich beispielsweise ein Stanzwerkzeug oder ein Schneidwerkzeug.The nonwoven fabric is advantageous according to claim 2 a supply roll and can be drawn in an endless process to be edited. For producing axially symmetrical Non-woven wipes, for example face masks, it is advantageous according to claim 3 Fold the nonwoven in the middle and use the nonwoven cloths to apply a spreading tool that only has one half of symmetry of the nonwoven cloth. This way a rational manufacturing a high degree of symmetry the non-woven cloths reached. A suitable application for example a punching tool or a cutting tool.

Die Vliesstofftücher werden entsprechend Anspruch 4 vorzugsweise durch einen Einbringkolben in die Komprimierform eingebracht und entsprechend Anspruch 5 in dem trockenen Zustand verdichtet. Alternativ ist es entsprechend Anspruch 6 auch möglich, die Vliesstofftücher vor dem Verdichten zu befeuchten, im befeuchteten Zustand zu verdichten und während des Verdichtens oder im Anschluß daran zu trocknen. Der Kompressionsdruck kann dann geringer sein.The nonwoven cloths are preferred according to claim 4 by a plunger into the compression mold introduced and according to claim 5 in the dry Condition condensed. Alternatively, it is according to claim 6 also possible to close the nonwoven cloths before compacting humidify, compress in the moistened state and dry during compaction or afterwards. The compression pressure can then be lower.

Die Ansprüche 8 bis 11 betreffen vorteilhafte Weiterbildungen des erfindungsgemäßen Vliesstofftuches.Claims 8 to 11 relate to advantageous ones Developments of the nonwoven fabric according to the invention.

Das Vliesstofftuch kann entsprechend Anspruch 8 die Form einer Gesichtsmaske haben. Dabei sind zwei Augenöffnungen und eine Mundöffnung vorgesehen, die aus dem Vliesstofftuch herausgetrennt sind. Ferner kann entsprechend Anspruch 9 eine Nasenperforation vorgesehen sein, die einen Nasenlappen von dem Hauptteil des Vliesstofftuchs trennt, wobei der Nasenlappen beim Tragen der Gesichtsmaske auf der Nase so aufliegt, daß die Nasenöffnungen freiliegen. Dabei ist es entsprechend Anspruch 10 vorteilhaft, die Nasenperforation durch zwei Stege zu unterbrechen, die bei der Benutzung ohne weiteres aufgetrennt werden können. Es hat sich gezeigt, daß die Verarbeitung des Vliesstofftuchs insbesondere bei dem Verfahrensschritt des Verdichtens durch diese Stege erleichtert ist.The nonwoven fabric can have the shape according to claim 8 have a face mask. There are two eye openings and a mouth opening provided from the nonwoven cloth are separated out. Furthermore, according to claim 9 a nasal perforation can be provided which is a nasal lobe separates from the main part of the nonwoven fabric, the Nose lobes when wearing the face mask on the nose like this rests that the nostrils are exposed. It is advantageous according to claim 10, the nasal perforation to be interrupted by two webs, which can be used without further can be separated. It has been shown that the processing of the nonwoven fabric in particular in the Process step of compacting through these webs is relieved.

Das Vliesstofftuch besteht entsprechend Anspruch 11 vorzugsweise aus einem faserigen Material, beispielsweise Viskose und/oder Polypropylen und/oder Polyester und/oder Zellstoff. Entsprechend einem bevorzugten Ausführungsbeispiel besteht das Vliesstofftuch zu 100% aus Viskose.The nonwoven fabric preferably consists according to claim 11 made of a fibrous material, for example viscose and / or polypropylene and / or polyester and / or cellulose. According to a preferred embodiment the non-woven cloth made of 100% viscose.

Die Erfindung wird nachstehend unter Bezugnahme auf die Zeichnung anhand eines Ausführungsbeispiels näher beschrieben. In der Zeichnung zeigen:

Fig. 1
eine Skizze zur Erläuterung eines Ausführungsbeispiels eines ersten und zweiten Verfahrensschritts des erfindungsgemäßen Verfahrens;
Fig. 2A
eine Skizze zur Erläuterung eines dritten Verfahrensschritts des erfindungsgemäßen Verfahrens;
Fig. 2B
eine Skizze zur Erläuterung eines vierten Verfahrensschritts des erfindungsgemäßen Verfahrens;
Fig. 2C
das komprimierte Vliesstofftuch am Ende des erfinungsgemäßen Herstellungsverfahrens; und
Fig. 3
ein Ausführungsbeispiel eines erfindungsgemäßen Vliesstofftuchs in Form einer Gesichtsmaske in seinem entfalteten Zustand.
The invention is described below with reference to the drawing using an exemplary embodiment. The drawing shows:
Fig. 1
a sketch to explain an embodiment of a first and second method step of the method according to the invention;
Figure 2A
a sketch to explain a third process step of the method according to the invention;
Figure 2B
a sketch to explain a fourth method step of the method according to the invention;
Figure 2C
the compressed nonwoven fabric at the end of the manufacturing process according to the invention; and
Fig. 3
an embodiment of a nonwoven fabric according to the invention in the form of a face mask in its unfolded state.

Das erfindungsgemäße Verfahren wird nachfolgend unter Bezugnahme auf die Fig. 1, 2A und 2B beschrieben. The method according to the invention is described below with reference 1, 2A and 2B.

Wie aus Fig. 1 erkennbar, wird der Vliesstoff 1 zunächst von einer drehbar aufgehängten Vorratsrolle 2 abgezogen und einer Falteinrichtung 3 zugeführt. Bei dem Vliesstoff handelt es sich um ein faseriges Material. Neben Viskose sind auch Polypropylen, Polyester und Zellstoff besonders geeignet, wobei die erfindungsgemäßen Vliesstofftücher in einem besonders bevorzugten Ausführungsbeispiel aus 100 % Viskose bestehen. Geeignet ist jedoch grundsätzlich jedes faserige, zumindest im geringen Umfang saugfähige Material.As can be seen from Fig. 1, the nonwoven fabric 1 is first of deducted a rotatably suspended supply roll 2 and a folding device 3 supplied. With the nonwoven it is a fibrous material. In addition to viscose polypropylene, polyester and cellulose are also special suitable, the nonwoven fabrics according to the invention in a particularly preferred embodiment from 100% Viscose exist. In principle, however, any is suitable fibrous, at least to a small extent absorbent material.

An der Falteinrichtung 3 wird die Vliesstoffbahn 10 im Ausführungsbeispiel mittig gefaltet, was durch den Pfeil 4 veranschaulicht ist. Dazu dient eine Faltschulter 5, die selbstverständlich auch vertikal angeordnet sein kann. Die Vliesstoffbahn 10 kann auch mehrfach gefaltet werden, um eine mehrlagige Weiterverarbeitung zu ermöglichen. Die Stoffbahnen werden durch Führungsrollen 6 und 7 geglättet und zueinander fixiert, bevor sie einer Stanzeinrichtung 8 zugeführt werden.In the exemplary embodiment, the nonwoven web 10 is on the folding device 3 folded in the middle, which is illustrated by the arrow 4 is. For this purpose, a folding shoulder 5 is used can of course also be arranged vertically. The Nonwoven web 10 can also be folded several times to enable multi-layer processing. The Fabric panels are smoothed by guide rollers 6 and 7 and fixed to each other before being punched 8 be fed.

Die Stanzeinrichtung 8 umfaßt ein Stanzwerkzeug 9, das aus der im Ausführungsbeispiel zweilagigen Vliesstoffbahn 10 die Vliesstofftücher 11 in der gewünschten Form herausstanzt. Im dargestellten Ausführungsbeispiel handelt es sich bei den Vliesstofftüchern 11 um eine Gesichtsmaske, die in Fig. 1 zur besseren Veranschaulichung im entfalteten Zustand dargestellt ist, wenngleich sie nach dem Ausstanzen um ihre Symmetrieachse einfach gefaltet vorliegt. Im Ausführungsbeispiel umfaßt das Stanzwerkzeug 9 nur eine Symmetriehälfte des auszustanzenden Vliesstofftuchs 11, wobei die Symmetrieachse 12 des Vliesstofftuchs 11 bzw. der Gesichtsmaske mit der Faltkante 13 der zweilagigen Vliesstoffbahn zusammenfällt. Dies hat den Vorteil, daß das Ausstanzen mit einer hohen Fertigungseffektivität erfolgt und zugleich das Vliesstofftuch 11 vor dem noch zu beschreibenden Verdichten bereits einfach vorgefaltet ist. Alternativ könnten die Vliesstofftücher 11 bzw. die Gesichtsmasken jedoch auch ungefaltet aus dem Vliesstoff bzw. der mehrlagigen Vliesstoffbahn 10 ausgestanzt werden. Bei einer mehrlagigen Vliesstoffbahn 10 hätte dies den Vorteil, daß mit jedem Stanzvorgang mehrere Vliesstofftücher bzw. Gesichtsmasken 11 gestanzt werden, was ebenfalls zu einer hohen Fertigungseffektivität führt.The punching device 8 comprises a punching tool 9 made of the two-layer nonwoven web 10 in the embodiment Non-woven cloths 11 punched out in the desired shape. in the The illustrated embodiment is the Nonwoven wipes 11 around a face mask shown in FIG. 1 for better illustration in the unfolded state is shown, although after punching it out around her The axis of symmetry is simply folded. In the embodiment The punch 9 comprises only one half of symmetry of the nonwoven fabric 11 to be punched out, the axis of symmetry 12 of the nonwoven cloth 11 or the face mask with the folded edge 13 of the two-layer nonwoven web coincides. This has the advantage that the punching out with a high manufacturing effectiveness and at the same time the nonwoven cloth 11 before the compression to be described is already pre-folded. Alternatively, the Nonwoven wipes 11 or the face masks, however unfolded from the nonwoven or the multilayer nonwoven web 10 are punched out. With a multilayer Nonwoven web 10 would have the advantage that with each Punching process of several nonwoven cloths or face masks 11 are punched, which also leads to high manufacturing effectiveness leads.

Die Vliesstofftücher 11 bzw. im Ausführungsbeispiel die Gesichtsmasken können beispielsweise durch ein Förderband 14 nach dem Stanzen abgefördert werden.The nonwoven cloths 11 or in the embodiment Face masks can, for example, by means of a conveyor belt 14 are removed after punching.

Anstatt die Vliesstofftücher 11 aus der Vliesstoffbahn 10 durch Stanzen auszubringen, kann beispielsweise auch ein Ultraschallschneiden, ein thermisches Schneiden mit einem Hiztdraht oder dergleichen zum Einsatz kommen.Instead of the nonwoven cloths 11 from the nonwoven web 10 to apply by punching can also be, for example Ultrasonic cutting, thermal cutting with one Heating wire or the like can be used.

Die Fig. 2A und 2B veranschaulichen den Verfahrensschritt des Verdichtens der Vliesstofftücher 11. Durch den in Fig. 2A dargestellten Verfahrensschritt werden die Vliesstofftücher 11 in eine Komprimierform 20 eingebracht. Im dargestellten Ausführungsbeispiel erfolgt dies mittels eines Einbringkolbens 21, der beim Einbringen in die Komprimierform 20 das Vliesstofftuch 11 mitnimmt und in die Komprimierform 20 einbringt. Vorzugsweise befindet sich das Vliesstofftuch 11 entgegen der Darstellung in Fig. 2A beim Einbringen in die Komprimierform 20 in einem um seine Symmetrieachse 12 einfach gefalteten Faltzustand, was das Einbringen in die Komprimierform 20 erleichtert. Das Vliesstofftuch kann auch vor dem Einbringen in die Komprimierform 20 mehrfach definiert gefaltet werden und in einer anderen definierten Faltlage in die Komprimierform 20 eingebracht werden, wenn dies im Einzelfall vorteilhaft ist. Das Einbringen in die Komprimierform 20 kann auch durch andere Maßnahmen, beispielsweise durch Einsaugen mittels eines Unterdrucks erfolgen. Beim Einbringen mittels eines Einbringkolbens 21 ist der Durchmesser des Einbringkolbens 21 gegenüber dem Durchmesser der Komprimierform deutlich geringer zu bemessen, um ein Verklemmen des Vliesstofftuchs 11 zwischen der Wandung der Komprimierform 20 und dem Einbringkolben 21 zu vermeiden. Beim Einbringen entsteht eine zufällige Vielfachfaltung des Vliesstofftuchs 11. 2A and 2B illustrate the process step compressing the nonwoven cloths 11. By the in Fig. 2A process step shown Nonwoven cloths 11 introduced into a compression mold 20. In the illustrated embodiment, this is done using a plunger 21, which when inserted into the Compression 20 takes the nonwoven cloth 11 and in the Compression form 20 brings. It is preferably located Nonwoven cloth 11 contrary to the illustration in Fig. 2A at Insert into the compression mold 20 in one order Axis of symmetry 12 simply folded state what that Introducing into the compression mold 20 facilitated. The Nonwoven cloth can also be placed in the Compression form 20 can be folded and defined multiple times another defined folded position in the compression form 20 be introduced if this is advantageous in individual cases. The introduction into the compression mold 20 can also be done by other measures, for example by means of suction a negative pressure. When using a Insertion piston 21 is the diameter of the insertion piston 21 compared to the diameter of the compression mold smaller to avoid jamming of the nonwoven fabric 11 between the wall of the compression mold 20 and the Avoid insertion piston 21. When inserting arises a random multiple folding of the nonwoven cloth 11.

Bei dem in Fig. 2B schematisch dargestellten Verfahrensschritt erfolgt das Verdichten des sich in der Komprimierform 20 befindlichen Vliesstofftuchs 11. Dabei wird ein Komprimierkolben 22 in die Komprimierform 20 eingebracht und mit einem hohen Kompressionsdruck beaufschlagt. Vorteilhaft sind in der Komprimierform 20 oder in dem Komprimierkolben 22 eine oder mehrere Bohrungen zum Entweichen der eingeschlossenen Luft vorgesehen. Erfindungsgemäß erfolgt das Verdichten der Vliesstofftücher 11 unter einem derart hohen Kompressionsdruck bei einer bestimmten vorgegebenen Temperatur, daß sich die Vliesstofftücher 11 nicht von selbst, sondern erst nach einem Befeuchten mit einer Flüssigkeit wieder entfalten können. Wie Versuche der Anmelderin gezeigt haben, ist ein Kompressionsdruck von mehr als 20 bar, vorzugsweise mehr als 50 bar, erforderlich, wenn die Vliesstofftücher aus 100 % Viskose bestehen. Die Fasern des Vliesstoffes sind nach dieser Kompression dann soweit miteinander vernetzt, daß sich die Vliesstofftücher im trockenen Zustand nicht wieder von selbst entfalten können.In the method step shown schematically in FIG. 2B the compression takes place in the compression form 20 nonwoven fabric 11 located Compression piston 22 introduced into the compression mold 20 and applied with a high compression pressure. Advantageous are in the compression form 20 or in the compression piston 22 one or more holes to escape the enclosed Air provided. This is done according to the invention Compacting the nonwoven cloths 11 under such a high Compression pressure at a given given Temperature that the nonwoven cloths 11 are not itself, but only after moistening with a Can unfold liquid again. How attempts the Applicant has shown is a compression pressure of more than 20 bar, preferably more than 50 bar, required if the non-woven cloths are made of 100% viscose. The fibers of the nonwoven fabric are then ready after this compression networked with each other that the nonwoven cloths in cannot unfold dry again by itself.

Versuche haben gezeigt, daß eine Verdichtung im trockenen Zustand der Vliesstofftücher 11 am geeignetsten ist, wenn auch der benötigte Kompressionsdruck relativ hoch ist. Um den Kompressionsdruck zu vermindern, können die Vliesstofftücher 11 auch in einem angefeuchteten Zustand verdichtet und gleichzeitig oder anschließend getrocknet werden.Experiments have shown that compression in the dry Condition of the nonwoven cloths 11 is most suitable if the compression pressure required is also relatively high. Around to reduce the compression pressure Nonwoven cloths 11 also in a moistened state compressed and dried simultaneously or subsequently become.

Im in den Fig. 2A und 2B dargestellten Ausführungsbeispiel weist die Komprimierform 20 einen runden Querschnitt auf, so daß die Vliesstofftücher 11 zu einer tablettenförmigen Form verdichtet werden. In Fig. 2C ist ein Vliesstofftuch 11 in einem komprimierten, tablettenförmigen Zustand dargestellt. Diese tablettenförmigen Vliesstofftücher sind beispielsweise in Tablettenröhrchen verpackbar. An dem Komprimierkolben 22 kann unterseitig eine Aufschrift vorgesehen sein, die in die komprimierten Vliesstofftücher 11 eine Aufschrift 23, beispielsweise eine Marke oder einen Verwendungshinweis, einprägt. Grundsätzlich ist es auch möglich, die Vliesstofftücher 11 in jede beliebige andere Form zu verdichten.In the embodiment shown in FIGS. 2A and 2B the compression form 20 has a round cross section, so that the nonwoven cloths 11 into a tablet-like shape be compressed. 2C is a nonwoven cloth 11 in shown in a compressed, tablet-shaped state. These tablet-shaped non-woven wipes are, for example can be packed in tablet tubes. On the compression piston 22 an inscription can be provided on the underside, which in the compressed nonwoven cloths 11 an inscription 23, for example a brand or a usage note, impresses. In principle, it is also possible to use the nonwoven cloths 11 to compress into any other shape.

Fig. 3 zeigt in einer vergrößerten Darstellung ein Ausführungsbeispiel eines entfalteten Vliesstofftuchs 11 in Form einer Gesichtsmaske. Durch die Stanzeinrichtung 8 sind aus der die Form eines menschlichen Gesichts aufweisenden Gesichtsmaske zwei Augenöffnungen 24 und eine Mundöffnung 25 herausgestanzt. Ferner ist eine Nasenperforation 26 gestanzt, die einen Nasenlappen 27 von dem Hauptteil 28 der Gesichtsmaske trennt. Der Nasenlappen 27 ist über eine Verbindung 29 und zwei Stege 30 mit dem Hauptteil 28 der Gesichtsmaske verbunden. Die Stege 30 dienen dazu, die Weiterverarbeitung nach dem Stanzen, insbesondere das Einbringen in die Komprimierform 20 zu erleichtern. Die Stege 30 können nach dem Entfalten der Gesichtsmaske im feuchten Zustand ohne weiteres durchtrennt werden, so daß bei der Anwendung der Gesichtsmaske der Nasenlappen 26 auf der Nase aufliegt und die Nasenöffnungen freigibt. Die Augenöffnungen 24, Mundöffnung 25 und die Nasenperforation 26 können auch mit einem Schneidwerkzeug erstellt werden.Fig. 3 shows an enlarged view of an embodiment an unfolded nonwoven cloth 11 in Shape of a face mask. Through the punch 8 from which has the shape of a human face Face mask two eye openings 24 and one mouth opening 25 punched out. There is also a nose perforation 26 die-cut a nasal lobe 27 from the body 28 of the Face mask separates. The nasal lobe 27 is over a Connection 29 and two webs 30 with the main part 28 of the Face mask connected. The webs 30 serve the Further processing after punching, especially that To facilitate insertion into the compression mold 20. The Bridges 30 can in the damp state can be severed easily, so that when using the face mask of the nasal lobes 26 rests on the nose and releases the nostrils. The Eye openings 24, mouth opening 25 and the nasal perforation 26 can also be created with a cutting tool.

Das Entfalten der erfindungsgemäß verdichteten Vliesstofftücher 11 kann beispielsweise mittels Wasser, jedoch auch mittels jeder anderen Flüssigkeit oder pharmazeutischen oder kosmetischen Lösung erfolgen.Unfolding the nonwoven cloths compressed according to the invention 11 can, for example, by means of water, however by means of any other liquid or pharmaceutical or cosmetic solution.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Insbesondere eignet sich das erfindungsgernäße Verfahren auch zum Herstellen von komprimierten Vliesstofftüchern in anderer Form, aus anderen Materialien und für andere Anwendungszwecke.The invention is not based on the illustrated embodiment limited. This is particularly suitable Methods according to the invention also for producing compressed nonwoven wipes in a different form, from others Materials and for other uses.

Claims (11)

Verfahren zum Herstellen von komprimierten Vliesstofftüchern (11) mit folgenden Verfahrensschritten: Ausbringen (8) der gewünschten Form der Vliesstofftücher (11) aus einer Vliesstoffbahn (10), Einbringen der ausgebrachten oder zugeschnittenen Vliesstofftücher (11) einzeln in eine Komprimierform (20), und Verdichten der Vliesstofftücher (11) mittels eines mit der Komprimierform (20) zusammenwirkenden Komprimierkolbens (22) unter einem hohen Kompressionsdruck, wobei der Kompressionsdruck so bemessen ist, daß sich die Vliesstofftücher (11) nicht von selbst, sondern erst nach einem Befeuchten mit einer Flüssigkeit wieder entfalten. Process for producing compressed nonwoven cloths (11) with the following process steps: Dispensing (8) the desired shape of the nonwoven cloths (11) from a nonwoven web (10), Introducing the applied or cut nonwoven cloths (11) individually into a compression mold (20), and Compacting the nonwoven cloths (11) by means of a compression piston (22) which interacts with the compression mold (20) under a high compression pressure, the compression pressure being such that the nonwoven cloths (11) do not move by themselves, but only after they have been moistened with a liquid unfold again. Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß der Vliesstoff (11) von einer Vorratsrolle (2) abgezogen wird. Method according to claim 1,
characterized by that the nonwoven fabric (11) is pulled off a supply roll (2). Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Vliesstoff (1) zum Herstellen von axialsymmetrischen Vliesstofftüchern (11) vor dem Ausbringen (8) mittig gefaltet wird und jedes Vliesstofftuch (11) mittels eines Ausbringwerkzeugs (9) ausgebracht wird, das nur eine Symmetriehälfte des Vliesstofftuchs (11) umfaßt. The method of claim 1 or 2,
characterized by that the nonwoven fabric (1) for the production of axially symmetrical nonwoven fabrics (11) is folded in the middle before being deployed (8) and each nonwoven fabric (11) is applied by means of a dispensing tool (9) which comprises only one half of the symmetry of the nonwoven fabric (11). Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Vliesstofftücher (11) mittels eines Einbringkolbens (21) in die Komprimierform (20) eingebracht werden. Method according to one of claims 1 to 3,
characterized by that the nonwoven cloths (11) are introduced into the compression mold (20) by means of an insertion piston (21). Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Vliesstofftücher (11) im trockenen Zustand verdichtet werden. Method according to one of claims 1 to 4,
characterized by that the nonwoven cloths (11) are compressed in the dry state. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Vliesstofftücher (11) vor dem Verdichten angefeuchtet werden, im angefeuchteten Zustand verdichtet werden und während des Verdichtens oder im Anschluß daran getrocknet werden. Method according to one of claims 1 to 4,
characterized by that the non-woven cloths (11) are moistened before compaction, are compacted in the moistened state and are dried during the compaction or afterwards. Komprimiertes Vliesstofftuch (11) herstellbar durch folgende Verfahrensschritte: Ausbringen (8) der gewünschten Form des Vliesstofftuchs (11) aus einer Vliesstoffbahn (10), Einbringen des ausgebrachten oder zugeschnittenen Vliesstofftuchs (11) in eine Komprimierform (20), und Verdichten des Vliesstofftuchs (11) mittels eines mit der Komprimierform (20) zusammenwirkenden Komprimierkolbens (22) unter einem hohen Kompressionsdruck, wobei der Kompressionsdruck so bemessen ist, daß sich das Vliesstofftuch (11) nicht von selbst, sondern erst nach einem Befeuchten mit einer Flüssigkeit wieder entfaltet. Compressed nonwoven fabric (11) can be produced by the following process steps: Dispensing (8) the desired shape of the nonwoven fabric (11) from a nonwoven web (10), Introducing the applied or cut nonwoven cloth (11) into a compression mold (20), and Compacting the nonwoven cloth (11) by means of a compression piston (22) which interacts with the compression mold (20) under a high compression pressure, the compression pressure being such that the nonwoven cloth (11) does not move by itself, but only after it has been moistened with a liquid unfolded again. Komprimiertes Vliesstofftuch nach Anspruch 7,
dadurch gekennzeichnet, daß das Vliesstofftuch (11) die Form einer Gesichtsmaske hat mit zwei Augenöffnungen (24) und einer Mundöffnung (25), die aus dem Vliesstofftuch (11) herausgetrennt sind. Compressed nonwoven fabric according to claim 7,
characterized by that the nonwoven fabric (11) has the shape of a face mask with two eye openings (24) and a mouth opening (25) which are separated from the nonwoven fabric (11). Komprimiertes Vliesstofftuch nach Anspruch 8,
dadurch gekennzeichnet, daß das Vliesstofftuch (11) eine Nasenperforation (26) aufweist, die einen Nasenlappen (27) von dem Hauptteil (28) des Vliesstofftuchs (11) trennt. Compressed nonwoven fabric according to claim 8,
characterized by that the nonwoven fabric (11) has a nose perforation (26) which separates a nosepiece (27) from the main part (28) of the nonwoven fabric (11). Komprimiertes Vliesstofftuch nach Anspruch 9,
dadurch gekennzeichnet, daß die Nasenperforation (26) durch zwei Stege (30) unterbrochen ist. Compressed nonwoven fabric according to claim 9,
characterized by that the nose perforation (26) is interrupted by two webs (30). Komprimiertes Vliesstofftuch nach einem der Ansprüche 7 bis 10,
dadurch gekennzeichnet, daß das Vliesstofftuch (11) aus einem faserhaltigen Material, insbesondere Viskose und/oder Polypropylen und oder Polyester und/oder Zellstoff besteht. Compressed nonwoven fabric according to one of claims 7 to 10,
characterized by that the nonwoven cloth (11) consists of a fibrous material, in particular viscose and / or polypropylene and or polyester and / or cellulose.
EP99115287A 1998-08-19 1999-08-02 Compressed nonwoven wipe and method for its production Expired - Lifetime EP0980926B2 (en)

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EP0980926B2 (en) 2005-08-03
EP0980926B1 (en) 2002-04-03
ATE215627T1 (en) 2002-04-15
DE19837648A1 (en) 2000-04-27
DE19837648C2 (en) 2003-10-30

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