DE4027797A1 - Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer - Google Patents

Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer

Info

Publication number
DE4027797A1
DE4027797A1 DE4027797A DE4027797A DE4027797A1 DE 4027797 A1 DE4027797 A1 DE 4027797A1 DE 4027797 A DE4027797 A DE 4027797A DE 4027797 A DE4027797 A DE 4027797A DE 4027797 A1 DE4027797 A1 DE 4027797A1
Authority
DE
Germany
Prior art keywords
barrier layer
fabric
layer
water vapour
water
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Withdrawn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
DE4027797A
Other languages
German (de)
Inventor
Hasso Von Bluecher
Ernest De Dr Ruiter
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE4003764A external-priority patent/DE4003764A1/en
Application filed by Individual filed Critical Individual
Priority to DE4027797A priority Critical patent/DE4027797A1/en
Publication of DE4027797A1 publication Critical patent/DE4027797A1/en
Withdrawn legal-status Critical Current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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary 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
    • A61F13/01—Non-adhesive bandages or dressings
    • A61F13/01034—Non-adhesive bandages or dressings characterised by a property
    • A61F13/01046—Air-vapor permeability
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular 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
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/023—Adhesive bandages or dressings wound covering film layers without a fluid retention 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00246—Wound bandages in a special way pervious to air or vapours
    • A61F2013/00259—Wound bandages in a special way pervious to air or vapours thin film
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00246—Wound bandages in a special way pervious to air or vapours
    • A61F2013/00263—Wound bandages in a special way pervious to air or vapours vapour permeability >500 g/m2/24h
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00297—Wound bandages safety barrier for protection of the operator
    • A61F2013/00306—Wound bandages safety barrier for protection of the operator dressing for protection of the operator during surgical procedure
    • 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
    • A61F2013/00855—Plasters pervious to air or vapours
    • A61F2013/00868—Plasters pervious to air or vapours thin film
    • 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
    • A61F2013/00855—Plasters pervious to air or vapours
    • A61F2013/00876—Plasters pervious to air or vapours vapour permeability >500 g/mg/24h
    • 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
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/15073—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use as drapes
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15406—Basis weight
    • 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
    • A61F13/51—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 outer layers
    • A61F2013/51059—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 outer layers being sprayed with chemicals
    • A61F2013/51066—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 outer layers being sprayed with chemicals for rendering the surface hydrophilic
    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • A61F2013/51139—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material being woven or knitted fabrics
    • 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51441—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material
    • A61F2013/51449—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material being knitted or woven fabrics
    • 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51441—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material
    • A61F2013/5145—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material being treated materials

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

Material for medical applications, esp. in clothing for operating theatre staff and patient drapes, which is resistant to boiling and is sterilisable, comprises a top layer of absorbent textile material, an inner barrier layer of water vapour permeable, water tight, virus impermeable, non-microporous material, and a bottom layer of absorbent textile material. The outer fabric layers are pref. of knitted polyester fabric with an area wt. of 50-150 (50-100) g/m2, raised on one side, and with the raised side facing outwards. The water vapour permeable barrier layer is esp. of polyurethane which does not swell or which swells only slightly in water,and the layer is 40-150 (60-100) micron thick. USE/ADVANTAGE - The materials are made by laminating together two layers of non-microporous polyurethane coated fabric without using an adhesive, to give a material having the properties required for use in operating theatre clothing and drapes and which have better resistance to boiling and sterilisation and longer life than the materialsdescribed in the parent specification DE4003764.

Description

Die Patentanmeldung P 40 03 764.9 beschreibt ein Schichtmaterial für medizinische Zwecke, insbesondere OP-Bekleidung. Das Material besteht aus einer saugfähigen Außenschicht, einer wasserdampfdurchlässigen, wasserdichten und kochfesten Sperrschicht und - so gewünscht - einer inneren Abdeckung.Patent application P 40 03 764.9 describes a layer material for medical Purposes, especially surgical clothing. The material consists of an absorbent Outer layer, a water vapor permeable, waterproof and boil-proof Barrier layer and - if desired - an inner cover.

Es wurde ein Material entwickelt, welches grundsätzlich dem Gegenstand der Patentanmeldung P 40 03 764.9 entspricht, aber durch seine besondere Konstruktion und Herstellungsverfahren eine überraschend hohe Beanspruchbarkeit bzw. Lebensdauer aufweist. Gleichzeitig werden für das neue Material zusätzliche Anwendungen möglich gemacht.A material has been developed which is basically the subject of Patent application P 40 03 764.9 corresponds, but due to its special construction and manufacturing process a surprisingly high durability or Has lifespan. At the same time, additional ones are made for the new material Applications made possible.

Materialien für den OP-Bereich, insbesondere OP-Bekleidung und Abdeckstoffe für den Patienten, müssen eine Reihe von Forderungen erfüllen:Materials for the surgical area, especially surgical clothing and drapes for the patient must meet a number of requirements:

a) sie sollen zumindest auf einer Seite, bevorzugterweise auf beiden Seiten, saugfähig sein;
b) sie sollen wasserdicht sein;
c) sie sollen eine gute Wasserdampfdurchlässigkeit haben;
d) sie sollen thermoregulierend sein (der Patient soll nicht abkühlen);
e) sie sollen partikeldicht sein, auch für Viren;
f) sie sollen kochfest und sterilisierbar sein.a) they should be absorbent at least on one side, preferably on both sides;
b) they should be waterproof;
c) they should have good water vapor permeability;
d) they should be thermoregulatory (the patient should not cool down);
e) they should be particle-tight, also for viruses;
f) they should be boil-proof and sterilizable.

Um kochfest zu sein und um eine lange Lebensdauer zu haben, soll grundsätzlich auf eine punktförmige Verklebung verzichtet werden, da eine solche immer einen Schwachpunkt darstellt. Um eine absolute Dichtigkeit auch gegen Bakterien und Viren zu erreichen, dürfen keine mikroporösen Materialien eingesetzt werden. Wasserdampfdurchlässige Polyesterfolien, die nicht mikroporös sind, haben in vielen Bereichen eine breite Anwendung gefunden, sind aber nur mittels einer punktförmigen Verklebung laminierbar. Diese punktförmige Verklebung hält Kochwäschen nicht aus. Die erwähnte wasserdampfdurchlässige Polyesterfolie, aber auch eine ebenfalls bereits eingeführte, durch eine Beschichtungstechnik hergestellte wasserdampfdurchlässige PU-Membran hat den Nachteil, daß sie bis zu 50% Wasser aufnimmt und dementsprechend quillt. Im gequollenen Zustand ist die mechanische Beanspruchbarkeit jedoch stark herabgesetzt, was sich während des Waschvorgangs sehr ungünstig auswirkt.In order to be boil-proof and to have a long lifespan, basically a point-like gluing can be dispensed with, since such is always one Represents weak point. To ensure absolute tightness against bacteria and To reach viruses, no microporous materials may be used. Water vapor permeable polyester films that are not microporous have in many Areas are widely used, but are only by means of a point Adhesive can be laminated. This punctiform glue holds the laundry not from. The water vapor-permeable polyester film mentioned, but also an already introduced one, produced by a coating technique The vapor-permeable PU membrane has the disadvantage that it is up to 50% Absorbs water and swells accordingly. The mechanical is swollen Resilience, however, greatly reduced, which is during the Washing process has a very unfavorable effect.

Die vorliegende Erfindung hat zum Ziel, diese Schwachpunkte zu eliminieren.The aim of the present invention is to eliminate these weak points.

Um eine punktförmige Verklebung zu vermeiden, wird sowohl das Textil der Vorderseite als auch jenes der Rückseite über eine Umkehrbeschichtung mit einer wasserdampfdurchlässigen, aber wasserdichten Beschichtung versehen. Diese besteht aus einem wasserdampfdurchlässigen, kompakten, also nicht mikroporösen Polyurethan, welche in Wasser - im Gegensatz zu den bekannten Produkten - nicht quillt. Das beschichtete Textil der Außenseite sowie das beschichtete Textil der Innenseite werden, Beschichtung gegen Beschichtung, anschließend thermisch, also ohne Kleber, zusammenkaschiert. Es resultiert ein für den OP-Bereich hervorragend geeignetes Material mit überraschend hoher Beanspruchbarkeit.To avoid punctiform gluing, both the textile is on the front as well as that of the backside with a reverse coating with a water vapor permeable, but provided waterproof coating. This exists from a water vapor permeable, compact, i.e. not microporous Polyurethane, which in water - in contrast to the known products - does not swells. The coated textile on the outside and the coated textile on the Inside, coating against coating, then thermally, so without glue, laminated together. The result is an excellent one for the operating theater suitable material with surprisingly high durability.

Das Herstellungsverfahren wird im folgenden Beispiel noch deutlicher gemacht: The manufacturing process is made even clearer in the following example:  

Auf einem Umkehrpapier wurde eine etwa 75 µm starke Schicht einer 30%igen Lösung auf Basis von Impraperm® 43 174 aufgerakelt und bei 135°C getrocknet (Trockenauflage ca. 25 g/m²). Auf diesen Film wurde ein Haftstrich auf Basis Impraperm® 43 176 (Trockenauflage 25 g/m²) aufgerakelt, die textile Komponente auf die noch nasse Beschichtung aufgebracht und angedrückt; anschließend wurde getrocknet. Die textile Komponente war ein 90 g schweres, einseitig gerauhtes Polyestergewirk, dessen glatte Seite beschichtet wurde. Zwei solcher beschichteten Bahnen wurden Beschichtung gegen Beschichtung thermisch zusammenkaschiert. In diesem Beispiel wurde ein symmetrisch aufgebautes Material erhalten, welches dank der Rauhung auf beiden Seiten saugfähig war. Selbstverständlich können auch zwei verschiedene Textilien eingesetzt werden.An approximately 75 μm thick layer of 30% strength was placed on a reversing paper Doctor-based solution based on Impraperm® 43 174 and dried at 135 ° C (Dry pad approx. 25 g / m²). An adhesive line was based on this film Impraperm® 43 176 (dry pad 25 g / m²) doctored, the textile component applied and pressed onto the still wet coating; subsequently was dried. The textile component was a 90 g, roughened on one side Polyester fabric, the smooth side of which has been coated. Two such coated Sheets were thermally laminated together, coating against coating. In this example a symmetrical material was obtained which was absorbent on both sides thanks to the roughening. Of course two different textiles can also be used.

Claims (6)

1. Material für medizinische Zwecke (OP-Bereich), welches kochfest und sterilisierbar ist, bestehend aus einer saugfähigen, textilen Schicht und darunter einer wasserdampfdurchlässigen, wasserdichten, auch für Viren undurchlässigen, nicht mikroporösen Sperr-Schicht, welche ihrerseits durch eine saugfähige textile Schicht abgedeckt ist.1. Material for medical purposes (surgical area), which is cook-proof and is sterilizable, consisting of an absorbent, textile layer and including a water vapor permeable, watertight one, also for viruses impermeable, non-microporous barrier layer, which in turn is covered by an absorbent textile layer. 2. Material nach Anspruch 1, dadurch gekennzeichnet, daß die saugfähige(n) textile(n) Schicht(en) aus einem einseitig gerauhten Polyestergewirk mit einem Flächengewicht von 50-150 g/m², vorzugsweise 50-100 g/m², besteht und die grauhte Seite nach außen gekehrt ist.2. Material according to claim 1, characterized in that the absorbent (s) textile (s) layer (s) made of a roughened polyester fabric with one side a basis weight of 50-150 g / m², preferably 50-100 g / m² and the gray side is turned out. 3. Material nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die wasserdampfdurchlässige Sperrschicht ein in Wasser nicht oder kaum quellendes Polyurethan ist und eine Stärke von 40-150 µm, vorzugsweise 60-100 µm, hat.3. Material according to claim 1 and / or 2, characterized in that the Water vapor permeable barrier layer is hardly or not at all in water swelling polyurethane and a thickness of 40-150 microns, preferably 60-100 µm. 4. Material nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Wasserdichtigkeit nach Chopper mindestens 2000 mm WS beträgt und dieser Wert nach Kochwäschen und Sterilisation erhalten bleibt.4. Material according to one or more of the preceding claims, characterized characterized in that the water resistance according to Chopper at least 2000 mm WS and this value after washing and sterilizing preserved. 5. Material nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Wasserdampfdurchlässigkeit nach der Lyssy- Methode mehr als 2000, vorzugsweise 3000-4000 g/m², pro 24 h beträgt. 5. Material according to one or more of the preceding claims, characterized characterized in that the water vapor permeability after the Lyssy Method is more than 2000, preferably 3000-4000 g / m², per 24 h.   6. Verfahren zur Herstellung eines Materials nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die textilen Schichten der Außen- und Innenseite zuerst nach dem Umkehrverfahren mit einem wasserdampfdurchlässigen, nicht quellenden Polyurethan beschichtet werden und anschließend Beschichtung gegen Beschichtung thermisch zusammenkaschiert werden.6. A method of manufacturing a material according to one or more of the preceding Claims, characterized in that the textile layers the outside and inside first after the reverse procedure with a water vapor permeable, non-swelling polyurethane can be coated and then thermally laminated coating against coating will.
DE4027797A 1990-02-08 1990-09-01 Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer Withdrawn DE4027797A1 (en)

Priority Applications (1)

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DE4027797A DE4027797A1 (en) 1990-02-08 1990-09-01 Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer

Applications Claiming Priority (2)

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DE4003764A DE4003764A1 (en) 1990-02-08 1990-02-08 Sterilisable fabric for medical uses - comprises wash-proof combination of absorbent fabric bonded to polyurethane membrane reinforced with light synthetic knitted material
DE4027797A DE4027797A1 (en) 1990-02-08 1990-09-01 Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer

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DE4027797A1 true DE4027797A1 (en) 1992-03-05

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DE4027797A Withdrawn DE4027797A1 (en) 1990-02-08 1990-09-01 Fabric for operating theatre clothing etc. - has knitted polyester absorbent fabric outer layers and water vapour permeable inner barrier layer

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2332643A (en) * 1997-12-24 1999-06-30 Samsung Electronics Co Ltd Dustproof fabric for a semiconductor cleanroom
DE19851108A1 (en) * 1998-11-06 2000-05-11 Cosy Tane Dr Grewe & Cie Kg Laminated waterproof and breathable stretch fabric has bonding and covering layers applied to textile carrier by transfer process to give structured laminate
DE19901093A1 (en) * 1999-01-14 2000-07-27 Bluecher Gmbh Fabric for covering pillows and duvets and mattresses is a textile material with an elastic stretch and a cladding for strength and impermeability to air and water but highly permeable to steam vapor
CN111501364A (en) * 2020-05-14 2020-08-07 绍兴市三协纺织品有限公司 Processing method of special fabric for medical isolation protective clothing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2332643A (en) * 1997-12-24 1999-06-30 Samsung Electronics Co Ltd Dustproof fabric for a semiconductor cleanroom
GB2332643B (en) * 1997-12-24 2002-03-06 Samsung Electronics Co Ltd Dustproof fabric for a semiconductor cleanroom and manufacturing method thereof
DE19851108A1 (en) * 1998-11-06 2000-05-11 Cosy Tane Dr Grewe & Cie Kg Laminated waterproof and breathable stretch fabric has bonding and covering layers applied to textile carrier by transfer process to give structured laminate
DE19901093A1 (en) * 1999-01-14 2000-07-27 Bluecher Gmbh Fabric for covering pillows and duvets and mattresses is a textile material with an elastic stretch and a cladding for strength and impermeability to air and water but highly permeable to steam vapor
CN111501364A (en) * 2020-05-14 2020-08-07 绍兴市三协纺织品有限公司 Processing method of special fabric for medical isolation protective clothing

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