DE3137839A1 - Design of a flat structure for the absorption and storage of liquid - Google Patents

Design of a flat structure for the absorption and storage of liquid

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Publication number
DE3137839A1
DE3137839A1 DE19813137839 DE3137839A DE3137839A1 DE 3137839 A1 DE3137839 A1 DE 3137839A1 DE 19813137839 DE19813137839 DE 19813137839 DE 3137839 A DE3137839 A DE 3137839A DE 3137839 A1 DE3137839 A1 DE 3137839A1
Authority
DE
Germany
Prior art keywords
liquid
use according
absorbent layer
sealing layer
storing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19813137839
Other languages
German (de)
Inventor
Jan 2127 Rullstorf Prahl
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.)
IPOS GmbH and Co KG
Original Assignee
IPOS GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IPOS GmbH and Co KG filed Critical IPOS GmbH and Co KG
Priority to DE19813137839 priority Critical patent/DE3137839A1/en
Publication of DE3137839A1 publication Critical patent/DE3137839A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/5323—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having absorbent material located in discrete regions, e.g. pockets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/48—Devices for preventing wetting or pollution of the bed
    • A61F5/485—Absorbent protective pads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means

Abstract

The invention relates to the use of a flat structure consisting of a suction layer made of a silicone rubber which produces a capillary effect and has foam-encapsulated, liquid-storing sections, and of a liquid-impermeable sealing layer covering the suction layer on one side for the production of hygienic covers and supports, such as babies' napkins, bedsheets or the like. <IMAGE>

Description

Es ist bekannt, Zellstoffauflagen und Auflagen aus It is known to make pulp pads and pads

Polyurethanschäumen und auch hieraus hergestellte Flächengebilde aufgrund ihrer Saugwirkung zur Aufnahme von Flüssigkeiten zu verwenden. So ist beispielsweise die Verwendung von Zellstoffauflagen als Windeln u.dgl. bekannt.Polyurethane foams and flat structures made therefrom due to to use their suction to absorb liquids. So is for example the use of pulp pads as diapers and the like is known.

Nachteilig ist jedoch hierbei, daß die von den Zellstoffauflagen und den Auflagen aus Polyurethanschäumen aufgesogene Flüssigkeit aus den Auflagen bei Ausübung eines Druckes ododgl. wieder herausgedrückt werden kann. Hinzu kommt, daß diese bekannten Zellstoffauflagen keine ausreichende Flüssigkeitsspeicherung über einen längeren Zeitraum ermöglichen, ohne daß es hier zu irgendeiner Beeinträchtigung beispielsweise der eine derartige Zellstoffauflage tragenden Person kommt. The disadvantage here, however, is that the pulp coverings and the pads made of polyurethane foams, liquid absorbed from the pads when exerting a pressure or the like. can be pushed out again. Come in addition, that these known pulp coverings do not have sufficient liquid storage Allow for a longer period of time without causing any impairment for example, the person wearing such a pulp pad comes.

Die Erfindung sieht die Verwendung eines Flächengebildes aus einer Saugschicht aus einem geschäumten, additionsvernetzten, einen Kapillareffekt hervorrufenden Slilicon-Kautschuk mit eingeschäumten, flüssigkeitsspeichernden Abschnitten aus einem stark hygroskopisch wirkenden Material und aus einer die Saugschicht einseitig abdeckenden, flüssigkeitsundurchlässigen Abdichtschicht zur Herstellung von hygienischen Auf- und Unterlagen, wie Windeln, Bettücher od.dgl. mit einem hohen Saug-und Speichereffekt für Flüssigkeiten, vor. The invention provides for the use of a sheet-like structure from a Absorbent layer made of a foamed, addition cross-linked, causing a capillary effect Silicone rubber with foamed-in, liquid-storing sections a strongly hygroscopic material and a one-sided absorbent layer covering, liquid-impermeable sealing layer for the production of hygienic On and documents, such as diapers, sheets or the like. with a high suction and storage effect for liquids.

überraschenderweise hat es sich gezeigt, daß ein derart erfindungsgemäß ausgebildetes Flächengebilde einen hohen Saug- und Speichereffekt für Flüssigkeiten besitzt und daß die aufgesogene Flüssigkeit bei Bewegung oder Druck auf das verwendete Flächengebilde aus diesem nicht herausdrückbar ist. Insbesondere durch die Verwendung von geschäumtem, additionsvernetztem Silicon-Kautschuk als Saugschicht wird die Saugschicht mit einem Kapillarwirkungseffekt versehen, der ein Aufsaugen von Flüssigkeiten ermöglicht. Die Flüssigkeit wird durch die in der Saugschicht ausgebildeten Kapillarkanälchen bis in die flüssigkeitsspeichernden Abschnitte befördert, die aus einem stark hygroskopisch wirkenden Material bestehen und somit die Eigenschaft haben, die Flüssigkeit nicht nur aufzusaugen, sondern auch zu speichern, mit der Folge, daß bei der Ausübung eines Druckes auf die Saugschicht Flüssigkeit nicht heraustreten kann, da diese von den flüssigkeitsspeichernden Abschnitten aufgesogen und festgehalten wird. Surprisingly, it has been shown that such an inventive formed sheet-like structure a high suction and storage effect for liquids and that the liquid absorbed when moving or Pressure on the flat structure used cannot be pushed out of this. In particular through the use of foamed, addition-crosslinked silicone rubber as Absorbent layer, the absorbent layer is provided with a capillary effect, the allows liquids to be sucked up. The liquid is through the in the Capillary tubules formed in the absorbent layer down to the liquid-storing ones Conveyed sections that consist of a strongly hygroscopic material and thus have the property of not only absorbing the liquid, but also also to save, with the result that when a pressure is exerted on the absorbent layer Liquid cannot escape because it is from the liquid-storing sections is absorbed and held.

Durch das in der Saugschicht ausgebildete Kapillar-Wirkungs-System nimmt diese eine bestimmte Menge Gewebeflüssigkeit auf, die jedoch bei Bewegung und Druck nicht aus dem als Schwamm wirkenden Kompressionsteil herausgedrückt werden kann, da die Flüssigkeit von den flüssigkeitsspeichernden Abschnitten aufgenommen und in diesen festgehalten wird.Through the capillary action system formed in the absorbent layer it absorbs a certain amount of tissue fluid, but it does so when you move and pressure are not squeezed out of the compression part acting as a sponge can, as the liquid is absorbed by the liquid-storing sections and is held in these.

Das zur Anwendung kommende Flächengebilde ist in der Zeichnung beispielsweise dargestellt, und zwar zeigt F i g. 1 ein kissenförmiges Flächengebilde in einer Ansicht von oben und F i g. 2 einen senkrechten Schnitt gemäß Linie II-II in Fig. 1 in einer vergrößerten Wiedergabe. The planar structure used is shown in the drawing, for example shown, namely shows F i g. 1 a pillow-shaped sheet-like structure in one View from above and FIG. 2 shows a vertical section along line II-II in FIG. 1 in an enlarged reproduction.

Das beispielsweise in Form eines Kissens ausgebildete Flächengebilde besteht gemäß Fig. 1 und 2 aus einer Saugschicht 20 aus einem geschäumten, additionsvernetzten Silicon-Kautschuk, der der Saugschicht 20 einen Kapillarwirkungseffekt verleiht. Dieser Kapillarwirkungseffekt wird bei der Verwendung eines geschäumten, additionsvernetzten Silicon-Kautschuks erhalten, jedoch besteht auch die Möglichkeit, einen additionsvernetzten Silicon-Kautschuk-Schaum zu verwenden, in dem feinste, nebeneinander angeordnete Kapillar-Röhrchen ausgebildet sind, so daß aufgrund der Kapillarwirkung bei dünnen Röhrchen der Saugeffekt erhalten wird. Diese saugfähigen Kapillarkanälchen bzw. -Röhrchen sind in Fig. 2 bei 25 angedeutet. The flat structure, for example in the form of a cushion consists according to FIGS. 1 and 2 of an absorbent layer 20 made of a foamed, addition-crosslinked Silicone rubber, which gives the absorbent layer 20 a capillary effect. This capillary effect is achieved when using a foamed, addition-crosslinked Silicone rubber obtained, but there is also the possibility of an addition-crosslinked To use silicone rubber foam in the finest, juxtaposed Capillary tubes are formed so that due to the capillary action when thin Tube the suction effect is obtained. These absorbent capillary tubules or Tubes are indicated at 25 in FIG. 2.

Mit in die Saugschicht 20 sind flüssigkeitsspeichernde Abschnitte 30 mit eingeschäumt, die aus einem stark hygroskopisch wirkenden Material, z.B. Zellstoff od.dgl., bestehen, wobei jedoch auch andere Stoffe und chemische Verbindungen verwendet werden können, die stark hygroskopisch wirkende Eigenschaften aufweisen. Die flüssigkeitsspeichernden Abschnitte 30 sind in der Saugschicht 20 beispielsweise in Form von streifenförmigen Abschnitten 30a integriert, wobei es vorteilhaft ist, die flüssigkeitsspeichernden Abschnitt 30 im Randbereich der Saugschicht 20 anzuordnen, worauf nachstehend noch näher eingegangen wird. Also in the absorbent layer 20 are liquid-storing sections 30 with foamed, which are made of a strongly hygroscopic material, e.g. Cellulose or the like., There are, however, other substances and chemical compounds can be used, which have strongly hygroscopic properties. The liquid-storing portions 30 are in the absorbent layer 20, for example integrated in the form of strip-shaped sections 30a, it being advantageous to arrange the liquid-storing section 30 in the edge region of the absorbent layer 20, which will be discussed in more detail below.

Anstelle von streifenförmigen Abschnittn 30a können die flüssigkeitsspeichernden Abschnitte 30 aus perlenform- artigen Körpern 30b bestehen, die über den Innenraum der Saugschicht 20 verteilt in dieser mit eingeschäumt sind. Instead of strip-shaped sections 30a, the liquid-storing Sections 30 made of bead-shaped like bodies 30b exist, the are distributed over the interior of the absorbent layer 20 in this with foamed.

Auch eine flächenmäßige Ausbildung, beispielsweise in Form einer Zwischenschicht, mit Saug- und Speicherschichteigenschaften, ist möglich. Darüber hinaus können auch gitterförmig ausgebildete flüssigkeitsspeichernde Abschnitte verwendet werden, wobei das Gitter dann ebenfalls aus einem stark hygroskopisch wirkenden Material besteht.A planar design, for example in the form of an intermediate layer, with suction and storage layer properties is possible. In addition, can also Lattice-shaped liquid-storing sections are used, wherein the grid then also consists of a strongly hygroscopic material.

Die Saugschicht 20des Flächengebildes 100 ist einseitig mit einer Abdichtschicht 40 abgedeckt, die den Innenraum der Saugschicht 20 außenseitig abdichtet. Diese Abdichtschicht 40 besteht vorzugsweise ebenfalls aus additionsvernetztem, homogenem Silicon, wodurch die Wirkung des Saugmaterials noch wesentlich verbessert wird. Die flüssigkeitsspeichernden Abschnitte 30 sind dann in der Saugschicht 20 benachbart zur Abdichtschicht 40 angeordnet, wobei die Abdichtschicht 40 den äußeren Abschluß des Flächengebildes darstellt. Diese Abdichtschicht bzw. -haut 40 und die Saugschicht 20 sind über eine bei 50 in Fig. 1 angedeutete Verzapfung miteinander verbunden. The absorbent layer 20 of the sheet 100 is one-sided with a Sealing layer 40 covered, which seals the interior of the absorbent layer 20 on the outside. This sealing layer 40 preferably also consists of addition-crosslinked, homogeneous silicone, which significantly improves the effect of the absorbent material will. The liquid-storing sections 30 are then in the absorbent layer 20 arranged adjacent to the sealing layer 40, the sealing layer 40 being the outer Represents completion of the fabric. This sealing layer or skin 40 and the Absorbent layer 20 are connected to one another via a mortise indicated at 50 in FIG. 1 tied together.

Der Schwammeffekt der Saugschicht 20 ist in Fig. 2 bei 20a angedeutet. The sponge effect of the absorbent layer 20 is indicated in FIG. 2 at 20a.

Um den Saugeffekt der flüssigkeitsspeichernden Abschnitte 30 zu erhöhen, kann in der Abdichtschicht 40 des Flächengebildes ein Absaugventil 60 vorgesehen sein, so daß die flüssigkeitsspeichernden Abschnitte 30 mit einem leichten Vakuum versehen werden können, was durch Verwendung z.B. In order to increase the suction effect of the liquid-storing sections 30, For example, a suction valve 60 can be provided in the sealing layer 40 of the sheet-like structure be so that the liquid storage portions 30 with a slight vacuum can be provided, which can be achieved by using e.g.

eines kleinen Gummiballes oder Gummikissens als Absaug- ventil 40 erhältlich ist, der mit in die Abdichtschicht 40 so eingearbeitet ist, daß er überhaupt nicht aufträgt (Fig. 2). Durch Einwirkung eines Druckes auf den Gummiball oder -kissen und Aufhebung des Druckes wird nach erfolgter überführung des Gummiballes oder -kissens in seine Ausgangsstellung das jeweils gewünschte Vakuum erzeugt.a small rubber ball or rubber cushion as a suction Valve 40 is available, which is incorporated into the sealing layer 40 so that he does not apply at all (Fig. 2). By applying pressure to the rubber ball or cushion and the pressure is released after the rubber ball has been transferred or cushion in its initial position generates the respectively desired vacuum.

Aufgrund des vorgesehenen Rückschlagventils wird eine Verbindung zur Außenluft verhindert, so daß das ausgebildete Vakuum in den flüssigkeitsspeichernden Abschnitten 30 erhalten bleibt.Due to the non-return valve provided, a connection to the Outside air prevented, so that the vacuum formed in the liquid-storing Sections 30 is preserved.

Das erfindungsgemäß ausgebildete Flächengebilde ist überall dort anwendbar, wo es als hygienische Auf- und Unterlage zum Einsatz gelangen kann, um auftretende oder entstehende Flüssigkeiten aufzusaugen. Auch eine Verwendung des Flächengebildes in Haushalten als Haushaltstücher u.dgl. ist möglich. The planar structure formed according to the invention is everywhere there applicable where it can be used as a hygienic pad and pad in order to to suck up occurring or developing liquids. Also a use of the Flat structure in households as household towels and the like is possible.

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Claims (7)

Ausbildung eines Flächengebildes zur Flüssigkeitsaufnahme und -speicherung Patentansprüche: 1. Verwendung eines Flächengebildes aus einer Saugschicht (20) aus einem geschäumten, additionsvernetzten, einen Kapi ilaref fekt hervorrufenden Silicon-Kautschuk mit eingeschäumten, flüssigkeitsspeichernden Abschnitten (30) aus einem stark hygroskopisch wirkenden Material und aus einer die Saugschicht (20) einseitig abdeckenden, flüssigkeitsundurchlässigen Abdichtschicht (40) zur Herstellung von hygienisch Auf- und Unterlagen, wie Windeln, Bettücher od.dgl. mit einem hohen Saug- und Speichereffekt für Flüssigkeiten.Formation of a flat structure for absorbing and storing liquids Claims: 1. Use of a flat structure made of an absorbent layer (20) from a foamed, addition cross-linked, causing a capillary defect Silicone rubber with foamed-in, liquid-storing sections (30) made of a strongly hygroscopic material and of an absorbent layer (20) one-sided covering, liquid-impermeable sealing layer (40) for production of hygienic on and documents, such as diapers, sheets or the like. with a high Suction and storage effect for liquids. 2. Verwendung nach Anspruch l von streifenförmig ausgebildeten, flüssigkeitsspeichernden Abschnitten (30). 2. Use according to claim l of strip-shaped, liquid-storing Sections (30). 3. Verwendung nach Anspruch 1 von perlenformartig ausgebildeten, flüssigkeitsspeichernden Abschnitten (30) . 3. Use according to claim 1 of pearl-shaped, liquid storage sections (30). 4. Verwendung nach Anspruch 1 von als gitterförmige Flächenkörper ausgebildeten, flüssigkeitsspeichernden Abschnitten (30). 4. Use according to claim 1 of as a lattice-shaped sheet formed, liquid-storing sections (30). 5. Verwendung nach den Ansprüchen 1 bis 4, von in der Saugschicht (20) benachbart zur Abdichtschicht (40) angeordneten, flüssigkeitsspeichernden Abschnitten (30). 5. Use according to claims 1 to 4 of in the absorbent layer (20) adjacent to the sealing layer (40) arranged, liquid-storing sections (30). 6. Verwendung nach den Ansprüchen 1 bis 5 von einer aus additionsvernetztem, homogenen Silicon bestehenden Abdichtschicht (40). 6. Use according to claims 1 to 5 of one of addition-crosslinked, homogeneous silicone existing sealing layer (40). 7. Verwendung nach den Ansprüchen 1 bis 6 von einer Abdichtschicht (40) mit einem in diese mündenden Absaugventil (60). 7. Use according to claims 1 to 6 of a sealing layer (40) with a suction valve (60) opening into this.
DE19813137839 1981-09-23 1981-09-23 Design of a flat structure for the absorption and storage of liquid Withdrawn DE3137839A1 (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
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EP0228353A1 (en) * 1985-12-20 1987-07-08 Lars Mattsson A device for collecting and absorbing liquid, and a method of manufacturing an absorption and spreading layer intended for liquid
WO1995003020A2 (en) * 1993-07-23 1995-02-02 Paul Hartmann Aktiengesellschaft Absorbent body, in particular for diapers, sanitary towels, panties protections and the like, and process for producing the same
US8715256B2 (en) 2007-11-21 2014-05-06 Smith & Nephew Plc Vacuum assisted wound dressing
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US9198801B2 (en) 2004-04-05 2015-12-01 Bluesky Medical Group, Inc. Flexible reduced pressure treatment appliance
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EP0228353A1 (en) * 1985-12-20 1987-07-08 Lars Mattsson A device for collecting and absorbing liquid, and a method of manufacturing an absorption and spreading layer intended for liquid
WO1995003020A2 (en) * 1993-07-23 1995-02-02 Paul Hartmann Aktiengesellschaft Absorbent body, in particular for diapers, sanitary towels, panties protections and the like, and process for producing the same
WO1995003020A3 (en) * 1993-07-23 1995-03-16 Hartmann Paul Ag Absorbent body, in particular for diapers, sanitary towels, panties protections and the like, and process for producing the same
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US10058642B2 (en) 2004-04-05 2018-08-28 Bluesky Medical Group Incorporated Reduced pressure treatment system
US10105471B2 (en) 2004-04-05 2018-10-23 Smith & Nephew, Inc. Reduced pressure treatment system
US11730874B2 (en) 2004-04-05 2023-08-22 Smith & Nephew, Inc. Reduced pressure treatment appliance
US10842919B2 (en) 2004-04-05 2020-11-24 Smith & Nephew, Inc. Reduced pressure treatment system
US9198801B2 (en) 2004-04-05 2015-12-01 Bluesky Medical Group, Inc. Flexible reduced pressure treatment appliance
US10363346B2 (en) 2004-04-05 2019-07-30 Smith & Nephew, Inc. Flexible reduced pressure treatment appliance
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