DE3037032A1 - Sterile absorbent dressing - has local needle bonding points to secure nonwoven layer to impermeable plastics film - Google Patents

Sterile absorbent dressing - has local needle bonding points to secure nonwoven layer to impermeable plastics film

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Publication number
DE3037032A1
DE3037032A1 DE19803037032 DE3037032A DE3037032A1 DE 3037032 A1 DE3037032 A1 DE 3037032A1 DE 19803037032 DE19803037032 DE 19803037032 DE 3037032 A DE3037032 A DE 3037032A DE 3037032 A1 DE3037032 A1 DE 3037032A1
Authority
DE
Germany
Prior art keywords
plastic film
cloth according
nonwoven
cloth
web
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
DE19803037032
Other languages
German (de)
Other versions
DE3037032C2 (en
Inventor
Karl-Heinz Dr. 4802 Halle Sengewald
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.)
SENGEWALD VERPACKUNGEN GmbH 33790 HALLE DE
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19803037032 priority Critical patent/DE3037032A1/en
Publication of DE3037032A1 publication Critical patent/DE3037032A1/en
Application granted granted Critical
Publication of DE3037032C2 publication Critical patent/DE3037032C2/de
Granted legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Abstract

The absorbent non-woven layer and the impermeable plastics film layer are bonded together by heat seals, distributed evenly as points over their surfaces. The local bonding points are circular with a dia. of 2-4 mm., equally spaced from each other by 5-10 mm. Polypropylene is pref. for the film layer. A non-woven can be applied to both sides of the film layer, secured by local bonding points, with a thicker non-woven on one side than the other. Designed for use as an absorbent material which can be sterilised in steam; the process gives a low-cost mfr., and allows a non-woven to be applied to both sides of the film.

Description

"Saugfähiges Tuch""Absorbent cloth"

Die Erfindung betrifft ein saugfähiges und sterilisierbares Tuch, bestehend aus einer flüssigkeitsundurchlässigen Kunststoffolie und einem damit verbundenen Vliesstoff.The invention relates to an absorbent and sterilizable cloth, consisting of a liquid-impermeable plastic film and an associated one Non-woven fabric.

Ein saugfähiges und sterilisierbares Tuch mit den vorgenannten Merkmalen ist auf dem Markt bekannt und vorgesehen insbesondere im medizinischen Bereich als Unterlage für Instrumente und als Abdecktuch bei Operationen. Es besteht zunächst aus einer mittigen dünnen-Folie aus Polypropylen, die flüssigkeitsundurchlässig ist. Die Folie ist beidseitig karoförmig mit einem Klebstoff-Auftrag versehen, damit die anschließend auf jeder Seite angebrachten Stoffbahnen aus einem Vliesstoff durch Klebung mit der Kunststoffolie verbunden werden. Nachteil dieser Verbindung ist, daß beim nachträglichen Dampfsterilisieren bei einer Temperatur von etwa 1200C der Klebstoff, der auch teilweise in das Vlies oder in die Zellulose gezogen ist und welcher auf wasserlöslicher Basis besteht, einen Verhärtungsprozeß durchmacht und somit zunächst durch seine Anwesenheit in dem Vliesstoff dessen Saugfähigkeit behindert. Da zugleich der Leimauftrag durch sich kreuzende Linien erfolgt - diese ergeben das vorerwähnte Karomuster -sind die Folienbahn und die Vliesstoffbahnen nicht nur auf diesen Flächenbereichen durch Klebstoff verbunden, sondern es ergibt sich auch, sofern ein örtlicher Punkt betrachtet wird, daß dieser von einer die beiden Lagen verbindenden Klebstoffschicht umgrenzt ist. Sofern somit auf diesen Punkt der Vliesstoff-Bahn ein Flüssigkeitstropfen fällt, dann wird er im wesentlichen nur aufgesogen von der Fläche innerhalb der Begrenzung, weil die Begrenzung durch den Klebstoff eine Sperre für den Abfluß in seitliche Bereiche darstellt, so daß nebenliegende Flächen auf den Flüssigkeitsanfall keinen Sog ausüben.An absorbent and sterilizable wipe with the aforementioned features is known on the market and intended especially in the medical field as Pad for instruments and as a drape for operations. It consists initially made of a central thin film made of polypropylene, which is impermeable to liquids is. The film is diamond-shaped on both sides with an adhesive application, so the then on each side attached strips of fabric made of one Nonwoven can be connected to the plastic film by gluing. Disadvantage of this Connection is that with subsequent steam sterilization at one temperature from about 1200C the adhesive, which is also partly in the fleece or in the cellulose is drawn and which is on a water-soluble basis, a hardening process goes through and thus initially through its presence in the nonwoven its absorbency with special needs. Since at the same time the glue is applied through intersecting lines - this one result in the aforementioned checked pattern - are the film web and the nonwoven webs not only connected by glue on these surface areas, but it results also, insofar as a local point is considered, that this is from a die two layers connecting adhesive layer is delimited. If so on this If a drop of liquid falls on the nonwoven web, then it becomes essentially only absorbed by the plane within the limit because the limit is through the adhesive is a barrier to the drainage in the side areas, so that Do not exert any suction on the adjacent surfaces.

Ein weiterer Nachteil ist, daß die Anbringung des Klebstoffes nicht nur teuer, sondern auf beiden Seiten der Kunststoffolie auch umständlich ist.Another disadvantage is that the application of the adhesive does not only expensive, but also cumbersome on both sides of the plastic film.

Die vorliegende Erfindung geht von der Aufgabe aus, ein saugfähiges und sterilisierbares Tuch, betstehend aus einer flüssigkeitsundurchlässigen Kunststoffolie und einem damit verbundenen Vliesstoff zu schaffen, der für eine- Dampfsterilisation geeignet ist und bei kostengünstiger Herstellung eine hohe Saugwirkung zeigt, wobei zugleich mit einfachen Mitteln beide Seiten der Kunststoffolienlage mit einer Vliesstoff-Bahn belegt sein können.The present invention is based on the object of an absorbent and a sterilizable cloth consisting of a liquid-impermeable one Plastic film and an associated nonwoven fabric suitable for steam sterilization is suitable and shows a high suction effect with inexpensive production, wherein at the same time with simple means both sides of the plastic film layer with a nonwoven web can be occupied.

Zur Lösung dieser Aufgabe wird bei einem saugfähigen und sterilisierbaren Tuch, bestehend aus einer flüssigkeitsundurchlässigen Kunststoffolie und einem damit verbundenen Vliesstoff erfindungsgemäß vorgeschlagen, daß die Kunststoffolie und der Vlies stoff über deren Flächen gleichmäßig verteilt punktförmig durch Heißsiegelung verbunden sind.To solve this problem, an absorbent and sterilizable Cloth, consisting of a liquid-impermeable plastic film and one with it connected nonwoven according to the invention proposed that the plastic film and the nonwoven fabric is evenly distributed over their surfaces in a punctiform manner by means of heat sealing are connected.

Durch die erfindungsgemäße Lösung, die Kunststoffolie und den Vliesstoff punktförmig durch Heißsiegelung zu verbinden, ergibt sich zunächst durch die Heißsiegelung, daß kein Klebstoff notwendig ist, weil bei der Erhitzung des Kunststoffes unter Anwendung von Druck der erhitzte Kunststoff mit der Vliesstoff-Bahn eine Verbindung eingeht, die einer Klebung entspricht. Dadurch ist an örtlichen Stellen der unter Druck erfolgenden Erhitzung die Kunststoffolie zugleich Klebstoff für den Vliesstoff. Weiterhin ist die Verbindung punktförmig angeordnet, so daß sich keine abgegrenzten Flächenbereiche bzw. Höfe ergeben, so daß die Flüssigkeit durch die Kapillarwirkung der angrenzenden Bereiche seitlich fortgezogen werden kann. Dadurch entsteht nicht lediglich eine Saugwirkung in Richtung zur Kunststoffolie hin, sondern insbesondere die Saugwirkung zur Seite hin.With the solution according to the invention, the plastic film and the nonwoven fabric to connect pointwise by heat sealing, results first of all by heat sealing, that no glue is necessary because under the heating of the plastic Applying pressure to connect the heated plastic to the nonwoven web is received, which corresponds to a bond. As a result, the under Pressure taking place heating the plastic film at the same time adhesive for the nonwoven fabric. Furthermore, the connection is arranged in a punctiform manner so that there are no delimited ones Surface areas or courtyards result, so that the liquid through the capillary action the adjacent areas can be pulled away to the side. This does not arise just a suction in Towards the plastic film, but rather especially the suction to the side.

In weiterer erfindungsgemäßer Ausgestaltung wird vorgeschlagen, daß die punktförmigen Verbindungen Kreisflächen sind, die in weiterer Ausgestaltung einen gleichbleibenden Abstand zueinander haben. Durch die Bindung auf Kreisflächen ergeben sich strömungstechnische Vorteile beim Aufsaugen.In a further embodiment of the invention it is proposed that the point-like connections are circular areas, which in a further embodiment have a constant distance from one another. By binding on circular areas there are fluidic advantages when sucking up.

Die punktförmigen Verbindungen haben vorzugsweise einen Durchmesser von 2 bis 4 mm und einen jeweiligen Abstand von 5 bis 10 mm.The point-like connections preferably have a diameter from 2 to 4 mm and a respective distance of 5 to 10 mm.

Die Kunststoffolie kann aus solchen thermoplastischen Folien bestehen, die unter Anwendung von Hitze und Druck mit dem Zellulosevlies verkleben.The plastic film can consist of such thermoplastic films, which stick to the cellulose fleece with the application of heat and pressure.

Die erfindungsgemäße Lösung ist besonders vorteilhaft in Verbindung mit der Maßgabe, das die Kunststoffolie beidseitig mit einem Vliesstoff belegt ist, weil durch Anwendung von Hitze und Druck auf nur einer Seite beide Vliestoff-Bahnen mit der Kunststoffolie punktförmig verbunden werden.The solution according to the invention is particularly advantageous in conjunction with the proviso that the plastic film is covered on both sides with a non-woven fabric, because by applying heat and pressure on only one side both webs of non-woven fabric be connected to the plastic film at points.

Das erfindungsgemäße Tuch wird besonders vorteilhaft in der Weise hergestellt, daß eine Kunststoff-Bolien-Bahn und eine Vliesstoff-Bahn in einem Kalander, bestehend aus einer unteren Walze mit weicher Oberfläche und einer mit kleinen erhizten Stempeln versehenen Prägewalze geführt und durch die Erhitzung der Stempel die Vliesstoff-Bahn mit der Kunststoffolien-Bahn durch Heißsiegelung verbunden wird.The cloth of the invention is particularly advantageous in that way manufactured that a plastic Bolien web and a nonwoven web in a calender, consisting of a lower Roller with a soft surface and one with small heated stamps provided embossing roller and guided through the heating the stamp the nonwoven web with the plastic film web by heat sealing is connected.

Die Erfindung ist in der Zeichnung anhand eines Ausführungsbeispieles näher erläutert. Es zeigen: Fig. 1 ein saugfähiges Tuch in der Ansicht von oben, Fig. 2 einen Schnitt durch das Tuch nach Fig. 1, entsprechend der dortigen Linie II-II, Fig. 3 das Tuch nach Fig. 2 in größerer Darstellung, Fig. 4 das Tuch in weiterer Darstellung, Fig. 5 einen Schnitt durch ein aus drei Lagen bestehenden Tuches, Fig. 6 Verfahren und Vorrichtung zur Herstellung des Tuches, im wesentlichen in schematischer Darstellung.The invention is shown in the drawing using an exemplary embodiment explained in more detail. They show: FIG. 1 an absorbent cloth in a view from above, FIG. 2 shows a section through the cloth according to FIG. 1, corresponding to the line there II-II, FIG. 3 shows the cloth according to FIG. 2 in a larger view, FIG. 4 shows the cloth in another Representation, FIG. 5 a section through a cloth consisting of three layers, FIG. 6 Process and device for the production of the cloth, essentially in schematic form Depiction.

Nach den Figuren 1 bis 3 besteht das saugfähige Tuch 10 aus einer Kunststoffolie 11, besonders vorteilhaft aus Polypropylen. An diesem ist befestigt eine Bahn 12 aus einem Zellulose-Vlies. Die Verbindung erfolgt über deren Flächen gleichmäßig verteilt über Punkte 13, 13a, 13b durch Heißsiegelung, über einen Kalander nach Fig. 6 bestehend aus einer oberen Walze 14 mit einer Vielzahl von erhitzten kleinen Stempeln 15, 15a, 15b, die die vorerwähnten punktförmigen Verbindungen 13, 13a, 13b bewirken, sobald die Bahnen 11 und 12 zwischen der mit Stempeln versehenen Walze 14 und einer Gegenwalze 16 hindurchgeführt werden. Diese Gegenwalze 16 ist mit einer weichen Oberfläche 17 versehen. Dies kann geschehen durch eine Auflage aus Gummi oder auch Papier. Die Behandlung durch den Kalander 14, 16 ergibt, daß die kleinen erhitzten Stempel 15, 15a, 15b usw. nach ihrer Einwirkung auf die beiden Bahnen. 12 und 13 in der Vliesstoff-Bahn 12 Vertiefungen 17, 17a, 17b hinterlassen, die auch als Näpfchen bezeichnet werden können. Die ausgeprägten Vertiefungen führen dazu, daß sich eine Flüssigkeit in diesen sammelt oder an diesen haften. bleibt. Diese Vertiefungen führen ebenfalls zu einer Verbesserung der Saugwirkung. Die erhizten kleinen Stempel 15 bewirken, daß Zellulose-Vlies und Kunststoffolie durch thermische Aktivität miteinander an den Punkten entsprechend der Flächen der kleinen Stempel miteinander verbunden werden, und zwar lediglich in den sehr nahen Grenzbereichen von Folie und Vlies, so daß nach Fig. 1 ein an einer Stelle x vorhandener Flüssigkeitstropfen, wie'die dargestellten Pfeile 18 bis 18c zeigen, nach allen Richtungen seitlich in den Vlies abfließen kann.According to Figures 1 to 3, the absorbent towel 10 consists of a Plastic film 11, particularly advantageously made of polypropylene. It is attached to this a web 12 made of a cellulose fleece. The connection is made via their surfaces evenly distributed over points 13, 13a, 13b by heat sealing, over a calender according to Fig. 6 consisting of an upper roller 14 with a plurality of heated small punches 15, 15a, 15b, which the aforementioned punctiform Connections 13, 13a, 13b effect as soon as the tracks 11 and 12 between the with Stamping provided roller 14 and a counter roller 16 are passed through. These Counter roll 16 is provided with a soft surface 17. This can be done with a pad made of rubber or paper. Treatment by the calender 14, 16 shows that the small heated punches 15, 15a, 15b etc. after their action on the two tracks. 12 and 13 in the nonwoven web 12 depressions 17, 17a, 17b, which can also be referred to as pans. The pronounced Depressions cause a liquid to collect in or on them be liable. remain. These depressions also lead to an improvement in the suction effect. The heated small punches 15 cause cellulose fleece and plastic film by thermal activity with each other at the points corresponding to the areas of the small stamps are connected to each other, and only in the very close ones Border areas of film and fleece, so that according to FIG. 1 an existing at a point x Drops of liquid, as shown by the arrows 18 to 18c shown, after all Directions can flow laterally into the fleece.

Fig. 4 zeigt, daß bei Vorhandensein einer Kunst.st9ffolienlage 11 und der Vliesstoff-Bahn 12 bei Anwendung einer mit nachgiebiger Oberfläche versehenen Gegenwalze 16 die Kunststofffolie 11 im Bereich der punktförmigen Verbindungen geringförmig nach außen vorstehende Erhebungen hat.Fig. 4 shows that in the presence of a plastic film layer 11 and the nonwoven web 12 using a compliant surface Counter roller 16 the plastic film 11 in the area of punctiform Connections has slightly outwardly protruding elevations.

Fig. 5 zeigt, daß die Kunststoffolienlage 11 auf der einen Seite, an der die Stempel 15 der Kalanderwalze 14 angreifen, eine Vliesstoff-Bahn von größerer Dicke hat als die an der anderen Seite anliegende Vliesstoff-Bahn 19.Fig. 5 shows that the plastic film layer 11 on one side, on which the punch 15 of the calender roll 14 attack, a nonwoven web of larger Thickness than the nonwoven web 19 lying on the other side.

Die erfindungsgemäße Lösung macht es möglich, daß durch Anwendung der kleinen erhitzten Stempel 15, auf einer Seite der Vliesstoff-Bahn auch die gegenüberliegende Vliesstoff-Bahn 19 mit der Kunststoffolie 11 verbunden wird, weil die Stempel auf die Vliesstoffbahnen einen Druck ausüben.The solution according to the invention makes it possible that by application the small heated stamp 15, on one side of the nonwoven web also the opposite Nonwoven web 19 is connected to the plastic film 11 because the stamp on the nonwoven webs exert a pressure.

Fig. 6 zeigt die Bewegungsrichtung der Bahnen und verdeutlicht, daß die erfindungsgemäße Verbindung der Lagen, die das saugfähige Tuch ergeben, einfach und sauber sowie zuverlässig verstellbar ist.Fig. 6 shows the direction of movement of the webs and makes it clear that the connection according to the invention of the layers that make up the absorbent wipe is simple and can be adjusted cleanly and reliably.

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Claims (9)

Patentansprüche 1. Saugfähiges und sterilisierbares Tuch, bestehend aus einer flüssigkeitsundurchlässigen Kunststoffolie und einem damit verbundenen Vliesstoff d a d u r c h g e k e n n z e i c h n e t , daß die Kunststofffolie (11) und der Vliesstoff (12) über deren Fläche gleichmäßig verteilt punktförmig durch Heißsiegelungen (13) verbunden sind.Claims 1. Absorbent and sterilizable cloth, consisting made of a liquid-impermeable plastic film and an associated one Non-woven fabric that the plastic film (11) and the nonwoven fabric (12) distributed uniformly over its surface in a punctiform manner Heat seals (13) are connected. 2. Tuch nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die punktförmigen Verbindungen (13) Kreisflächen sind.2. Cloth according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the point-like connections (13) are circular areas. 3. Tuch nach Anspruch 1 und gegebenenfalls Anspruch-2, d a d u r c h g e k e n n z e i c h n e t , daß die punktförmigen Verbindungen (13) einen gleichbleibenden Abstand zueinander haben.3. Cloth according to claim 1 and optionally claim 2, d a d u r c h g e k e n n n e i c h n e t that the point-like connections (13) a constant Have a distance to each other. 4. Tuch nach den Ansprüchen 1 bis 4, d a d u r c h g e k e n n z e i c h n e t , daß die punktförmigen Verbindungen (13) einen Durchmesser von 2 bis 4 mm und einen jeweiligen Abstand von 5 bis 10 mm haben.4. Cloth according to claims 1 to 4, d a d u r c h g e k e n n z e i c h n e t that the point-like connections (13) have a diameter of 2 to 4 mm and a distance of 5 to 10 mm. 5. Tuch nach Anspruch 1 und einem oder mehreren der Ansprüche 2 bis 4, d a d u r c h g e k e n n z e i c h -n e t , daß die Kunststoffolie (11) aus Polypropylen besteht.5. Cloth according to claim 1 and one or more of claims 2 to 4, that the plastic film (11) is made of Made of polypropylene. 6. Tuch nach Anspruch 1 und einem oder mehreren der Ansprüche 2 bis 5, d a d u r c h g e k e n n -z e i c h n e t , daß die Kunststoffolie (11) beidseitig mit einem Vlies (12,19) belegt und durch Heißsiegelung mit diesen Vliesstoffen (12,19) verbunden ist.6. Cloth according to claim 1 and one or more of claims 2 to 5, that the plastic film (11) is on both sides covered with a fleece (12,19) and heat-sealed with these fleece materials (12,19) connected is. 7. Tuch nach Anspruch 6, d a d u r c h g e -k e n n z e i c h n e t , daß der Vliesstoff (12) an der einen Seite der Stoffolie (11) eine größere Dicke als der Vliesstoff (19) an der anderen Seite der Kunststoffolie hat.7. Cloth according to claim 6, d a d u r c h g e -k e n n z e i c h n e t that the nonwoven fabric (12) on one side of the fabric film (11) has a greater thickness than the nonwoven fabric (19) on the other side of the plastic film. 8. Tuch nach den Ansprüchen 6 und 7, d a d u r c h g e k e n n z e i c h n e t , daß in der dickeren Vliesstofflage (12) an den Stellen der Verbindung (13) zwischen Vliesstoff (12) und Kunststoffolie (11) Vertiefungen angeordnet sind.8. Cloth according to claims 6 and 7, d a d u r c h g e k e n n z e i c h n e t that in the thicker nonwoven layer (12) at the points of connection (13) between nonwoven fabric (12) and plastic film (11) depressions are arranged. 9. Verfahren zur Herstellung des Tuches nach den Ansprüchen 1 bis 8, d a d u r c h g e k e n n z e i c h -n e t , daß eine Kunststoffolien-Bahn (11) und eine Vliesstoff-Bahn (12,19) in einen Kalander, bestehend aus einer unteren Walze (16) mit weicher Oberfläche (17) und einer mit kleinen Stempeln (15) versehenen Prägewalze (14) geführt und durch die Erhitzung der Stempel (15) die Vliesstoff-Bahn (12,19) mit der Kunststoffolien-Bahn (11) durch Heißsiegelung verbunden werden.9. A method for producing the cloth according to claims 1 to 8, d a d u r c h e k e n n n z e i c h -n e t that a plastic film web (11) and a nonwoven web (12, 19) in a calender consisting of a lower one Roller (16) with a soft surface (17) and one with small punches (15) Embossing roller (14) and the nonwoven web by heating the stamp (15) (12,19) are connected to the plastic film web (11) by heat sealing.
DE19803037032 1980-10-01 1980-10-01 Sterile absorbent dressing - has local needle bonding points to secure nonwoven layer to impermeable plastics film Granted DE3037032A1 (en)

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DE19803037032 DE3037032A1 (en) 1980-10-01 1980-10-01 Sterile absorbent dressing - has local needle bonding points to secure nonwoven layer to impermeable plastics film

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DE19803037032 DE3037032A1 (en) 1980-10-01 1980-10-01 Sterile absorbent dressing - has local needle bonding points to secure nonwoven layer to impermeable plastics film

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DE3037032A1 true DE3037032A1 (en) 1982-05-06
DE3037032C2 DE3037032C2 (en) 1987-12-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724510A1 (en) * 1987-07-24 1989-02-09 Reifenhaeuser Masch Nonwoven textile web of thermoplastic material and manufacture thereof
US5288348A (en) * 1990-12-14 1994-02-22 Hercules Incorporated Method of making high loft and high strength nonwoven fabric
US5415640A (en) * 1991-07-17 1995-05-16 Kimberly-Clark Corporation Bodyside cover for an absorbent article
US6117523A (en) * 1991-11-11 2000-09-12 The Procter & Gamble Company Absorbent article with comfortable and rapid acquisition topsheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9109198U1 (en) * 1991-07-25 1991-10-10 Helbig, Otto, O-5210 Arnstadt, De
DE4321155C2 (en) * 1993-06-25 2003-10-30 Procter & Gamble Flat, non-woven fiber layer material for use in hygiene articles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1831403A (en) * 1930-05-02 1931-11-10 Lewis C Van Riper Method of reenforcing porous paper
DE2342340A1 (en) * 1972-09-04 1974-03-21 Bunzl & Biach Ag Disposable diapers prodn from superposed webs - with water-permeable and waterproof webs joined along longitudinal edges
US4041203A (en) * 1972-09-06 1977-08-09 Kimberly-Clark Corporation Nonwoven thermoplastic fabric

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1831403A (en) * 1930-05-02 1931-11-10 Lewis C Van Riper Method of reenforcing porous paper
DE2342340A1 (en) * 1972-09-04 1974-03-21 Bunzl & Biach Ag Disposable diapers prodn from superposed webs - with water-permeable and waterproof webs joined along longitudinal edges
US4041203A (en) * 1972-09-06 1977-08-09 Kimberly-Clark Corporation Nonwoven thermoplastic fabric

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724510A1 (en) * 1987-07-24 1989-02-09 Reifenhaeuser Masch Nonwoven textile web of thermoplastic material and manufacture thereof
US5288348A (en) * 1990-12-14 1994-02-22 Hercules Incorporated Method of making high loft and high strength nonwoven fabric
US5470640A (en) * 1990-12-14 1995-11-28 Hercules Incorporated High loft and high strength nonwoven fabric
US5415640A (en) * 1991-07-17 1995-05-16 Kimberly-Clark Corporation Bodyside cover for an absorbent article
US6117523A (en) * 1991-11-11 2000-09-12 The Procter & Gamble Company Absorbent article with comfortable and rapid acquisition topsheet

Also Published As

Publication number Publication date
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Owner name: SENGEWALD VERPACKUNGEN GMBH, 33790 HALLE, DE

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