DE3002136A1 - Liquid absorbent bandage - has supporting layer coated with swelling absorbent powder and thermoplastic powder and covering layer - Google Patents

Liquid absorbent bandage - has supporting layer coated with swelling absorbent powder and thermoplastic powder and covering layer

Info

Publication number
DE3002136A1
DE3002136A1 DE19803002136 DE3002136A DE3002136A1 DE 3002136 A1 DE3002136 A1 DE 3002136A1 DE 19803002136 DE19803002136 DE 19803002136 DE 3002136 A DE3002136 A DE 3002136A DE 3002136 A1 DE3002136 A1 DE 3002136A1
Authority
DE
Germany
Prior art keywords
powder
absorbent
thermoplastic
absorbent body
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19803002136
Other languages
German (de)
Inventor
Rudolf 4150 Krefeld Clausen
Franziska Schütze
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.)
Stockhausen GmbH and Co KG
Original Assignee
Chemische Fabrik Stockhausen GmbH
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 Chemische Fabrik Stockhausen GmbH filed Critical Chemische Fabrik Stockhausen GmbH
Priority to DE19803002136 priority Critical patent/DE3002136A1/en
Publication of DE3002136A1 publication Critical patent/DE3002136A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • A61F13/01008—
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/1565—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers of fibrous material between webs, e.g. wrapping layers of fibrous material
    • 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
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • 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
    • A61L15/24—Macromolecular compounds obtained 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
    • A61L15/22—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
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
    • A61F13/2002—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the use
    • A61F13/202—Catamenial tampons
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00731—Plasters means for wound humidity control with absorbing pads
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • 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
    • A61F2013/530131—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 being made in fibre but being not pulp
    • 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/53051—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 superabsorbent materials, i.e. highly absorbent polymer gel materials being only in particular parts or specially arranged
    • 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
    • A61F2013/53445—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 from several sheets
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • A61F2013/5395—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 characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat

Abstract

The absorbent body, for use as a bandage etc, comprises a supporting layer to which a liquid-absorbent one is secured. The supporting layer is coated with swelling absorbent powder (5) and thermoplastic material in powder form, over which is a layer of covering material. The supporting and/or covering layers can be cloths of cellular or synthetic fibre material, typically creped. The swelling powder is pref. a polymer, mixed with the plastic powder and scattered on the supporting layer, or alternatively the thermoplastic powder can be applied first.

Description

Beschreibung description

Die Erfindung betrifft einen Saugkörper mit wenigstens einer Trägerschicht und einer fest mit dick er verbunden'n flüssigkeitabsorbierenden Schicht, sowie ein Verfahren zur Herstellung derselben.The invention relates to an absorbent body with at least one carrier layer and a liquid-absorbing layer that is firmly connected to a thick layer, as well a method of making the same.

Derartige Saugkörper finden insbesondere Anwendung auf dem Gebiet der Medizin und der Hygiene. Beispielsweise werden derartige Saugkörper für saugfähige Verbände, Windeln, Damenbinden und Tampons verwendet. Saugkörper dieser Art müssen die Eigenschaften haben, Körperexsudate wie Blut, Schweiß oder Urin aufzusaugen und zu speichern.Such absorbent bodies are used in particular in the field medicine and hygiene. For example, such absorbent bodies are used for absorbent Bandages, diapers, sanitary napkins and tampons are used. Must have absorbent bodies of this type have the ability to absorb body exudates such as blood, sweat or urine and save.

Saugkörper der eingangs genannten Art haben üblicherweise einen solchen Aufbau, daß wenigstens eine Lage oder eine Schicht, die zur Flüssigkeitsabsorption bestimmt ist, aus Zellstoff oder Baumwolle-Linters besteht. Ferner ist es auch bekannt, diese flüssigkeitsabsorbierenden Schichten zusätzlich derart weiterzubehandeln, daß sie die auf zusaugende Flüssigkeit besser und schneller aufnehmen.Absorbent bodies of the type mentioned at the beginning usually have one Construction that at least one ply or layer that is used for liquid absorption is made of cellulose or cotton linters. It is also known to further treat these liquid-absorbing layers in such a way that that they absorb the liquid to be sucked on better and faster.

Auch ist es darüberhinaus aus der DE-OS 27 22 860 bekannt, den Saugkörper so auszulegen, daß die aufgesaugte Flüssiqkeit von der Haut ferngehalten wird und nicht zur Haut zurückströmen kann. Hierdurch werden möglicherweise auftretende Hautreizungen oder Entzündungen vermieden.It is also known from DE-OS 27 22 860, the absorbent body designed in such a way that the absorbed liquid is kept away from the skin and cannot flow back to the skin. This may cause Skin irritation or inflammation avoided.

In der DE-OS 27 40 169, der DE-AS 22 o8 126, der DE-PS 2 o48 721 und der DE-AS 16 42 o72 sind Maßnahmen angegeben, die das Flüssigkeitsabsorptionsvermöqen derartiger Saugkörper weiter verbessern und auch das Aufsaugen größerer Flüssigkeitsmengen gestatten. Diese Druckschriften geben saugaktive oder absorbierende Stoffe an, die als Zusätze in Saugkörpern verwendet werden können. Insbesondere kommen als derartige Stoffe vernetzte Polyacrylate, Polyacrylamide, vernetzte sulfonierte Polystyrole oder vernetzte Polyäther in Betracht.In DE-OS 27 40 169, DE-AS 22 o8 126, DE-PS 2 o48 721 and the DE-AS 16 42 o72 measures are given that the liquid absorption capacity such absorbent bodies further improve and also the suction of larger amounts of liquid allow. These publications indicate absorbent or absorbent substances that can be used as additives in absorbent bodies. In particular, come as such Substances cross-linked polyacrylates, polyacrylamides, cross-linked sulfonated polystyrenes or crosslinked polyethers.

Alle diese zur Steigerung des Absorptionsvermögens des Suugkörpers dienenden Stoffe wurden bisher 'immer in Verbindung mit Schichten aus Zellstoff oder Baumwoll-Linters verwendet.All of these to increase the absorption capacity of the suction body Serving substances were previously 'always in connection with layers of cellulose or cotton linters are used.

Diese das Absorptionsvermögen des Saugkörpers verbessernden Stoffe werden in dem Grundkörper des Saugkörpers beispielsweise dadurch festgehalten, daß sie in die Schicht aus Watte und/oder zwischen Schichten aus Watte und/oder Vliesstoffen eingelagert werden. Die vorstehend genannten Stoffe können auch in Pulverform auf ein mit Klebstoff beschichtetes Vlies gestreut werden, so daß die einzelnen Stoffpartikel auf der Klebstoffbeschichtung des Vlieses haften. Alle bisher bekannten Saugkörper sind in Abhängigkeit von ihrem Fassungsvermögen relativ dick bemessen und können nur umständlich hergestellt werden.These substances improve the absorption capacity of the absorbent body are held in the base body of the absorbent body, for example, in that them in the layer of wadding and / or between layers of wadding and / or nonwovens be stored. The substances mentioned above can also be in powder form a fleece coated with adhesive are scattered, so that the individual fabric particles adhere to the adhesive coating of the fleece. All previously known absorbents are dimensioned and can be relatively thick depending on their capacity can only be made cumbersome.

Die Erfindung zielt daher darauf ab, einen Saugkörper der eingangs genannten Art zu schaffen, der Körperexsudate, wie Blut, Schweiß oder Urin aufnimmt und so fest bindet, daß die aufgesaugte Flüssigkeit nicht zu der darunterliegenden Haut zurückströmen kann.The invention therefore aims to provide an absorbent body of the initially called type that absorbs body exudates such as blood, sweat or urine and binds so tightly that the absorbed liquid does not get to the underlying liquid Skin can flow back.

Gleichzeitig soll im Hinblick auf das Anwendungsgebiet der Hygiene ein verbesserter Tragkomfort erreicht und die Herstellung insgesamt vereinfacht werden.At the same time, with a view to the area of application of hygiene an improved wearing comfort is achieved and the production is simplified overall will.

Erfindungsgemäss zeichnet sich ein Saugkörper der eingangs genannten Art durch eine Beschichtung'der Trägerschicht mit einem saugaktiven, quellbaren Pulver und Thermoplasten in Pulverform und eine darüberliegende Deckschicht aus. Diese erfindungsgemäss auf der Traerschicht anqebrachte Beschichtung erfüllt eine Doppelfunktion. Einerseits enthält sie das saugaktive, quellbare Pulver,für das die an sich auf diesem Gebiet bekannten vernetzten Polymere verwendet werden können, und das die aufgesaugte Flüssigkeit bindet, und andererseits enthält sie auch einen Thermoplasten in Pulverform, der sowohl zur Fixierung der saugaktiven, quellbaren Pulverpartikel als auch zur Verbindung von Trägerschicht mit Beschichtung und Deckschicht dient.According to the invention, an absorbent body of the type mentioned at the beginning is distinguished Kind by coating the carrier layer with an absorbent, swellable one Powder and thermoplastics in powder form and an overlying top layer. This coating applied to the carrier layer according to the invention fulfills one Dual function. On the one hand, it contains the absorbent, swellable powder for the the crosslinked polymers known per se in this field can be used, and that binds the absorbed liquid, and on the other hand it also contains one Thermoplastics in powder form, both for fixing the absorbent, swellable Powder particles as well as for connecting the carrier layer with the coating and top layer serves.

Durch diese erfindungsgemässe Auslegung des Saugkörpers wird erreicht, daß die einzelnen Schichten wesentlich dünner bemessen werden können, so daß der Saugkörper insgesamt dünner ist, wodurch der Tragkömfort verbessert wird. Da zusätzlich bei dem erfindüngsgemässen Saugkörper eine über der Beschichtung liegende Deckschicht vorhanden ist, wird zusätzlich sichergestellt, daß die mit dem saugaktiven, quellbaren Pulver der Beschichtung aufgesaugte Flüssigkeit nicht zur Hautpartie zurückströmen kann, gegen die die Trägerschicht oder Deckschicht anliegt.This inventive design of the absorbent body is achieved that the individual layers can be made much thinner, so that the Absorbent body is overall thinner, whereby the Tragkömfort is improved. There in addition in the case of the absorbent body according to the invention, a cover layer lying over the coating is present, it is also ensured that the absorbent, swellable Powder of the coating does not allow liquid absorbed to flow back to the skin area can against which the carrier layer or cover layer rests.

Erforderlichenfalls können die absorbierenden Stoffe zusammen mit feinverteilter Kieselsäure verwendet werden.If necessary, the absorbent materials can be used together with finely divided silica can be used.

Als Thermoplaste sind insbesondere solche geeignet, die auch zum Heißsiegeln von Materialbahnen, wie z.B. Polyolefine, Polyamide, Äthylenvinylacetate, Polyester, Cellulosederivate usw. verwendet werden.Particularly suitable thermoplastics are those that are also suitable for heat sealing of material webs such as polyolefins, polyamides, ethylene vinyl acetates, polyesters, Cellulose derivatives, etc. can be used.

In Abhängigkeit von dem Anwendungsgebiet kann die Trägerschicht und/oder die Deckschicht ein Vlies aus Zellstoff und/oder Synthesefasern sein.Depending on the field of application, the carrier layer and / or the cover layer can be a fleece made of cellulose and / or synthetic fibers.

Vorzugsweise ist das Vlies ein Kreppvlies.The fleece is preferably a crepe fleece.

Zweckmässigerweise besteht die saugaktives, quellbares Pulver und den Thermoplasten in Pulverform enthaltende Beschichtung aus einem Pulvergemisch. Wenn, wie in Anspruch 6 dieses saugaktive, quellbare Pulver und der Thermoplast in der Pulverform als Pulvergemisch aufgestreut werden, vereinfacht sich der Ablauf des Herstellungsverfahrens wesentlich, da keine zusätzlichen Behandlungen mehr erforderlich sind. Zur Verbesserung der Haftung der Beschichtung mit der Trägerschicht und/oder der Deckschicht wird vorzugsweise der Thermoplast in der Pulverform zuerst gesondert aufgebracht, bevor das saugaktive, quellbare Pulver aufgebracht wird. Hierdurch ergibt sich die Möglichkeit, daß der Thermoplast in Pulverform beliebig oder in regelmässiger geometrischer Zuordnung aufgebracht werden kann. Gleichzeitig kann der Thermoplast in Pastenform oder als Dispersion verarbeitet werden. Durch diese vielseitigen Möglichkeiten zum Aufbringen des Thermoplasten in Pulverform wird erreicht, daß man ohne Schwierigkeiten das saugaktive, quellbare Pulver zwischen zwei oder mehreren Schichten aus Zellstoff und/oder Vlies aus Synthesefasern einlagern und fixieren kann.Appropriately there is the absorbent, swellable powder and Coating made of a powder mixture containing the thermoplastic in powder form. If, as in claim 6, this absorbent, swellable powder and the thermoplastic are sprinkled in the powder form as a powder mixture, the process is simplified of the manufacturing process, since additional treatments are no longer required are. To improve the adhesion of the coating to the carrier layer and / or The thermoplastic in powder form is preferably first separated from the cover layer applied before the absorbent, swellable powder is applied. Through this there is the possibility that the thermoplastic in powder form or in any regular geometric assignment can be applied. At the same time can the thermoplastic can be processed in paste form or as a dispersion. Through this versatile possibilities for applying the thermoplastic in powder form is achieved, that you can easily place the absorbent, swellable powder between two or more Store and fix layers of cellulose and / or fleece made of synthetic fibers can.

Derartige Saugkörper dienen insbesondere als Ersatz für die sonst übliche Zellwatte in Windeln, Damenbinden, saug-#fähigen Verbänden und Tampons.Such absorbent bodies serve in particular as a replacement for the otherwise Usual cell wadding in diapers, sanitary napkins, absorbent dressings and tampons.

Wenn wie in Anspruch 8 angegeben, der Thermoplast in Form von Punkten und/oder unterbrochenen Linien aufgebracht wird, ergibt sich der Vorteil, daß sich die Flüssigkeit über die Fläche ungehindert ausbreiten kann. Zudem bleibt der Saugkörper auch im vollgesaugten Zustand weich.If as stated in claim 8, the thermoplastic is in the form of dots and / or broken lines is applied, there is the advantage that the liquid can spread unhindered over the surface. In addition, the absorbent body remains soft even when fully sucked.

Die Erfindung wird nachstehend anhand der beigefügten Zeichnung und an Beispielen näher erläutert.The invention is explained below with reference to the accompanying drawings and explained in more detail with examples.

In der Zeichnung zeigt: Fig. 1 eine vergrößerte perspektivische Ansicht eines Saugkörpers zur Verdeutlichung seines Aufbaues in einer Grundausführungsform, Fig. 2 eine schematische Ansicht zur Verdeutlichung eines ersten Verfahrensablaufes zur Herstellung eines Saugkörpers nach der Erfindung, Fig. 3 eine schematische Ansicht zur Verdeutlichung eines zweiten Verfahrensablaufs zur Herstellung eines Saugkörpers nach der Erfindung und Fig. 4 eine vergrößerte Ausschnittsansicht eines Beispiels, in welcher Weise der Thermoplast in Pulverform auf die Trägerschicht aufgebracht werden kann.The drawing shows: FIG. 1 an enlarged perspective view an absorbent body to illustrate its structure in a basic embodiment, 2 shows a schematic view to illustrate a first process sequence for the production of an absorbent body according to the invention, Fig. 3 a schematic view to illustrate a second process sequence for production an absorbent body according to the invention and FIG. 4 shows an enlarged detail view an example of how the thermoplastic in powder form is applied to the carrier layer can be applied.

In seiner Grundausführungsform weist der in Fig. 1 insgesamt mit 1 bezeichnete Saugkörper eine Trägerschicht 2, eine Beschichtung 3 und eine Deckschicht 4 auf. Die Trägerschicht 2 und/oder die Deckschicht 4 können beispielsweise ein Vlies aus Zellstoff und/oder Synthesefasern sein. Auf der Trägerschicht-2 ist die insgesamt mit 3 bezeichnete'Beschichtung aufgebracht, Diese Beschichtung 3 umfaßt saugaktives, quellbares Pulver 5 und einen Thermoplasten 6 in Pulverform.In its basic embodiment, the 1 in FIG designated absorbent body has a carrier layer 2, a coating 3 and a cover layer 4 on. The carrier layer 2 and / or the cover layer 4 can, for example, a Be nonwoven made of cellulose and / or synthetic fibers. On the carrier layer-2 is the a total of 3 designated'Beschichtung applied, This coating 3 comprises absorbent, swellable powder 5 and a thermoplastic 6 in powder form.

Beispiel 1 Auf ein Vlies als Trägerschicht 2 wird ein Pulvergemisch aus Polyäthylen als Thermoplast 6 und vernetztes Polyacrylat als saugaktives, quellbares Pulver 5 in einem Verhältnis von 1:4 mit 1o g/m2 aufgestreut. Dieser Arbeitsschritt ist in Fig. 2 mit lo bezeichnet. Mittels eines Kaschierwerkes 11 oder einer beheizten Kalanderwalze 12 wird anschließend ein zweites Vlies als Deckschicht 4 aufgebracht. Diesen Vorgang bezeichnet man auch als Kaschieren. Example 1 A powder mixture is applied to a fleece as the carrier layer 2 made of polyethylene as thermoplastic 6 and cross-linked polyacrylate as absorbent, swellable Powder 5 sprinkled on in a ratio of 1: 4 with 10 g / m2. This step is designated in Fig. 2 with lo. By means of a laminating unit 11 or a heated one A second fleece is then applied as a cover layer 4 to the calender roll 12. This process is also known as lamination.

Beispiel 2 Auf ein Vlies als Trägerschicht 2 wird, wie in Fig. 3 angedeutet, als Thermoplast 6 in Pulverform Polyäthylen mit Hilfe eines-Druckaggregats 13 als Punkt aufgebracht, wobei der Thermoplast 6 in Pulverform bei dieser Auftragsweise auch pastös sein kann. In Fig. 4 ist die Trägerschicht 2 mit einem beispielsweise punktförmig aufgebrachten Thermoplasten 6 in vergrößerter Dars-tellung gezeigt. Die Punkte sind hierbei rautenförmig auf der Oberfläche der Trägerschicht 2 angeordnet und die Kantenlänge der Rauten beträgt beispielsweise 8 mm. Nach Fig. 3 wird anschließend, wie mit 14 bezeichnet, der aufgebrachte Thermoplast in einem Abschnitt mit Infrarotbeheizung angesintert. Wie in Fig. 3 mit 15 bezeichnet, wird dann vernetztes Acrylatpulver als saugaktives, quellbares Pulver 5 über die ganze Fläche der Trägerschicht 2 und des darauf aufgebrachten Thermoplasten 6 mit ca. 40 g/m2 gestreut. Anschließend wird mittels eines mit Infrarotbeheizung arbeitenden Kaschierwerks 16 oder beheizten Kalanderwalzen 17 ein zweites Vlies als Deckschicht 4 aufgebracht. Example 2, as in FIG. 3, is applied to a fleece as the carrier layer 2 indicated as thermoplastic 6 in powder form polyethylene with the help of a pressure unit 13 applied as a point, the thermoplastic 6 in powder form in this application can also be pasty. In Fig. 4, the carrier layer 2 is provided with an example Thermoplastics 6 applied punctiformly shown in an enlarged representation. The points are here arranged in a diamond shape on the surface of the carrier layer 2 and the edge length of the diamonds is 8 mm, for example. According to Fig. 3 is then, as indicated by 14, the applied thermoplastic in a section with infrared heating sintered. As indicated by 15 in FIG. 3, then crosslinked acrylate powder is formed as an absorbent, swellable powder 5 over the entire surface of the carrier layer 2 and of the thermoplastic 6 applied thereon with approx. 40 g / m2. Afterward is heated by means of a laminating unit 16 or working with infrared heating A second fleece is applied as cover layer 4 to calender rolls 17.

In den Fig. 2 und 3 ist die Bewegungsrichtung der'Trägerschicht 2 mit einem Pfeil angedeutet. Diese Bewegungsrichtung entspricht der Herstellungsrichtung-eines Saugkörpers 1 nach der Erfindung.In FIGS. 2 and 3, the direction of movement of the carrier layer 2 is indicated with an arrow. This direction of movement corresponds to the direction of manufacture-one Absorbent body 1 according to the invention.

Claims (9)

Saugkörper und Verfahren zur Herstellung derselben." Patentansprüche 1. Saugkörper mit wenigstens einer Trägerschicht und einer fest mit dieser verbundenen, flüssigkeitsabsorbierenden Schicht, g e k e n n z e i c h n e t durch eine Beschichtung (3) der Trägerschicht (2) mit einem saugaktivon, quellbaren Pulver (5) und Thermoplasten (6) in E>ulverform, und eine darüberliegende Deckschicht (4).Absorbent bodies and method of making same. "Claims 1. Absorbent body with at least one carrier layer and one firmly connected to it, liquid-absorbing layer, not shown by a coating (3) the carrier layer (2) with an absorbent, swellable powder (5) and thermoplastics (6) in E> ulverform, and an overlying cover layer (4). 2. Saugkörper nach Anspruch, dadurch g e k e n n -z e i c h n e t , daß die Trägerschicht (2) und/oder die Deckschicht (4) ein Vlies aus Zellstoff und/oder Synthesefasern ist oder sind.2. Absorbent body according to claim, characterized in that g e k e n n -z e i c h n e t that the carrier layer (2) and / or the cover layer (4) is a fleece made of cellulose and / or synthetic fibers is or are. 3. Saugkörper nach Anspruch 2, dadurch g e k e n n -z e i c h n e t, daß das Vlies ein Kreppvlies ist.3. absorbent body according to claim 2, characterized in that g e k e n n -z e i c h n e t that the fleece is a crepe fleece. 4. Saugkörper nach einem der Ansprüche 1 bis 3, dadurch g e k e n n z e i c h n e t , daß das saugaktive, quellbare Pulver (5) ein Polymer ist.4. absorbent body according to one of claims 1 to 3, characterized g e k e n It is noted that the absorbent, swellable powder (5) is a polymer. 5. Saugkörper nach einem der Ansprüche 1 bis 4, dadurch q e k e n n z e i c h n e t , daß die saugaktives, quellbares Pulver (5) und den Thermoplasten (6) in Pulverform enthaltende Beschichtung (3) aus einem Pulvergemisch besteht.5. absorbent body according to one of claims 1 to 4, characterized q e k e n It is noted that the absorbent, swellable powder (5) and the thermoplastic (6) powder-containing coating (3) consists of a powder mixture. 6. Verfahren zur Herstellung eines Saugkörpers nach einem der Ansprüche 1 bis 5, dadurch g e k e n n z e i c h n e t, daß das saugaktive, quellbare Pulver und der Thermoplast in Pulverform, vorzugsweise als Pulvergemisch auyesreu werden.6. A method for producing an absorbent body according to one of the claims 1 to 5, characterized in that the absorbent, swellable powder and the thermoplastic in powder form, preferably as a powder mixture, be auyesreu. 7., Verfahren zur Herstellung eines Saugkörpers nach einem der Ansprüche 1 bis 5,.dadurch q e k e n n Z c i C 01 n e t, daß zuerst der Thermoplast in Pulverform und#dann das sauaktive, quellbare Pulver aufgebracht wird.7. A method for producing an absorbent body according to one of the claims 1 to 5, .due q e k e n n Z c i C 01 n e t that first the thermoplastic in powder form and # then the acid-active, swellable powder is applied. 8. Verfahren zur Herstellung eines Saugkörpers -nach Anspruch 7, dadurch g e k e n n z e i c h n e t , daß der Thermoplast in Pulverform in Form von beliebiq oder geometrisch einander zugeordneten unterbrochenen Linien oder Punkten aufgebracht wird und daß die Trägerschicht und Deckschicht miteinander verkiebt werden.8. A method for producing an absorbent body -according to claim 7, characterized it is noted that the thermoplastic in powder form in the form of any or broken lines or points that are geometrically assigned to one another are applied and that the carrier layer and cover layer are cemented together. 9. Verfahren zur Herstellung eines Saugkörpers nach Anspruch 7 oder Anspruch 8, dadurch g e k e n n z e i c h -n e t , daß der Thermoplast in. Pulverform als Paste oder Dispersion aufgebracht wird.9. A method for producing an absorbent body according to claim 7 or Claim 8, characterized in that the thermoplastic is in powder form is applied as a paste or dispersion.
DE19803002136 1980-01-22 1980-01-22 Liquid absorbent bandage - has supporting layer coated with swelling absorbent powder and thermoplastic powder and covering layer Ceased DE3002136A1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578163A1 (en) * 1985-03-01 1986-09-05 Beghin Say Sa ABSORBENT STRUCTURE FOR SINGLE USE ARTICLE.
EP0218361A1 (en) * 1985-09-02 1987-04-15 PTM, Inc. Improved absorbent napkin, particularly for infants' diaper pads
EP0273141A2 (en) * 1986-12-08 1988-07-06 Steen & Co. GmbH Superabsorbent fibre flocks, method for making them and their use
EP0304536A2 (en) * 1987-08-25 1989-03-01 The B.F. Goodrich Company Polymeric wound dressings
EP0612533A1 (en) * 1993-02-24 1994-08-31 SANYO CHEMICAL INDUSTRIES, Ltd. Water absorbent composition and material
EP0875225A1 (en) * 1997-04-30 1998-11-04 The Procter & Gamble Company Individual layered structures containing particulate material, and process for manifacturing said structures
EP0706364B2 (en) † 1993-06-28 2001-03-21 Mölnlycke AB A method of manufacturing absorbent articles, such as absorbent towels, surgical towels or the like, and an article manufactured in accordance with the method
WO2010015630A1 (en) * 2008-08-04 2010-02-11 Asap-Norway As Fluid absorbing sheet
WO2010028749A1 (en) 2008-09-11 2010-03-18 Carl Freudenberg Kg Insert having distance-keeping cells

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578163A1 (en) * 1985-03-01 1986-09-05 Beghin Say Sa ABSORBENT STRUCTURE FOR SINGLE USE ARTICLE.
WO1986005089A1 (en) * 1985-03-01 1986-09-12 Beghin-Say Sa Absorbing structure for a disposable article
EP0218361A1 (en) * 1985-09-02 1987-04-15 PTM, Inc. Improved absorbent napkin, particularly for infants' diaper pads
EP0273141A2 (en) * 1986-12-08 1988-07-06 Steen & Co. GmbH Superabsorbent fibre flocks, method for making them and their use
EP0273141A3 (en) * 1986-12-08 1989-08-30 Hanfspinnerei Steen & Co. Gmbh Superabsorbent fibre flocks, method for making them and their use
US5002814A (en) * 1986-12-08 1991-03-26 Hanfspinnerei Steen & Co., Gmbh Superabsorbent fibre flocks, methods for their production and application
EP0304536A2 (en) * 1987-08-25 1989-03-01 The B.F. Goodrich Company Polymeric wound dressings
EP0304536A3 (en) * 1987-08-25 1990-05-09 The B.F. Goodrich Company Polymeric wound dressings
EP0612533A1 (en) * 1993-02-24 1994-08-31 SANYO CHEMICAL INDUSTRIES, Ltd. Water absorbent composition and material
TR28964A (en) * 1993-02-24 1997-07-21 Sanyo Chemical Ind Ltd Water-absorbing composition and material.
US5672419A (en) * 1993-02-24 1997-09-30 Sanyo Chemical Industries, Inc. Water absorbent composition and material
US5716707A (en) * 1993-02-24 1998-02-10 Sanyo Chemical Industries, Ltd. Water absorbent compositon and material
EP0706364B2 (en) † 1993-06-28 2001-03-21 Mölnlycke AB A method of manufacturing absorbent articles, such as absorbent towels, surgical towels or the like, and an article manufactured in accordance with the method
EP0875225A1 (en) * 1997-04-30 1998-11-04 The Procter & Gamble Company Individual layered structures containing particulate material, and process for manifacturing said structures
WO1998048752A1 (en) * 1997-04-30 1998-11-05 The Procter & Gamble Company Individual layered structures containing particulate material, and process for manufacturing said structures
WO2010015630A1 (en) * 2008-08-04 2010-02-11 Asap-Norway As Fluid absorbing sheet
US9125758B2 (en) 2008-08-04 2015-09-08 Asap-Norway As Fluid absorbing sheet
WO2010028749A1 (en) 2008-09-11 2010-03-18 Carl Freudenberg Kg Insert having distance-keeping cells

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