CH523366A - Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes - Google Patents
Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposesInfo
- Publication number
- CH523366A CH523366A CH508571A CH508571A CH523366A CH 523366 A CH523366 A CH 523366A CH 508571 A CH508571 A CH 508571A CH 508571 A CH508571 A CH 508571A CH 523366 A CH523366 A CH 523366A
- Authority
- CH
- Switzerland
- Prior art keywords
- threads
- twisted threads
- fiber fleece
- twisted
- medical
- Prior art date
Links
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 34
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 229920003043 Cellulose fiber Polymers 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
-
- 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
- A61F13/01021—Non-adhesive bandages or dressings characterised by the structure of the dressing
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
-
- 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
- A61F2013/00153—Wound bandages coloured or with decoration pattern or printing
-
- 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
- A61F2013/00544—Plasters form or structure
- A61F2013/00548—Plasters form or structure net
-
- 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
- A61F2013/00744—Plasters means for wound humidity control with absorbing pads containing non-woven
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Fibrous fleece for medical or hygienic purposes consists of fibres, and of strongly co-twisted threads, while the binder content is sufficiently small to enable the strongly co-twisted threads to change their degree of twist on being wetted with water. The fibrous part contains 10-30% strongly co-twisted threads. The fibrous fleece is cooler and more comfortable against the skin than known fibrous fleeces contng. cotton or cellulose fibres.
Description
Faservlies für medizinische oder hygienische Zwecke
Faservliese für medizinische oder hygienische Zwecke bestehen aus Fasern, in der Regel aus Baumwoll- oder Zellwollfasern, deren Lage eine bevorzugte Richtung haben und enthalten in der Regel geringe Bindemittelmengen. Quer zu dieser Richtung ist daher die Festigkeit solcher Faservliese geringer. Unter dem Begriff Faservlies werden hier grundsätzlich alle sogenannten Non-woven Produkte verstanden.
Faservliese haben bei Verwendung für medizinische oder hygienische Zwecke zwar den Vorteil, dass sie erheblich billiger sind als Gewebe, aber den Nachteil haben, dass sie in trockenem Zustand auf der Haut einen grösseren Wärmestau bewirken als Gewebe, und dass sie nach Durchfeuchtung so fest an der Haut anliegen, dass die Atmungsfähigkeit der Haut erheblich beeinträchtigt wird. Ein weiterer Nachteil der Faservliese ist ihre geringe Querfestigkeit.
Die Erfindung bezweckt, diese Nachteile von Faservliesen zu beseitigen. Gemäss der Erfindung besteht das Faservlies nicht nur aus Fasern, sondern ausserdem aus überdrehten Fäden, und sein Bindemittelanteil ist - sofern überhaupt ein Bindemittel vorhanden ist - so gering, dass die überdrehten Fäden bei Benetzung mit Wasser ihre Drehung ändern und damit auch ihre Lage ändern können. Die überdrehten Fäden bestehen vorzugsweise aus Baumwoll- oder Zellwollfasern oder Gemischen derselben. Soweit diese überdrehten Fäden, deren Länge erheblich kleiner sein kann als die Breite des Faservlieses, quer zur Längsrichtung des Faservlieses liegen, bestimmen sie wesentlich die Querfestigkeit des Faservlieses und erhöhen sie somit beträchtlich.
Bei Benutzung eines solchen Faservlieses haben die überdrehten Fäden Tendenz, ihre Lage zu ändern und dadurch sich und sie berührende Fasern zu bewegen.
Diese Drehungsänderung wird bei Trocknung im wesentlichen wieder rückgängig gemacht. Infolgedessen bewegt sich ein solches Faservlies, das in trockenem Zustand in einer Ebene liegt, stellenweise mehr oder weniger aus dieser Ebene heraus. Ein auf der Haut liegendes Faservlies gemäss der Erfindung wird sich daher, wenn es beispielsweise durch Schweiss benetzt wird, stellenweise von der Haut abheben.
Der Faseranteil eines solchen Faservlieses kann vorzugsweise -zu 10 bis 30% aus überdrehten Fäden bestehen. Die überdrehten Fäden können eine Länge von einigen Zentimetern bis zu einigen Dezimetern haben, entsprechend der Breite des Vlieses. Die Drehung der Fäden ist vorzugsweise mindestens 1000 beispielsweise 1200.
Vorzugsweise werden die Stücke der überdrehten Fäden bei der Herstellung des Vlieses so angebracht, dass sie überwiegend mehr oder weniger rechtwinklig zu der bevorzugten Richtung der Fasern liegen. Insbesondere können die überdrehten Fäden in der Richtung der Breite des Vlieses liegen und ihre Länge so gross sein wie die Breite des Vlieses. Zur Erhöhung der Querfestigkeit des Vlieses kann es mit Steppnähten versehen sein, wobei die Steppfäden aus überdrehten Fäden bestehen können.
Auch kann in ein Faservlies ein Netz aus miteinander verbundenen Fäden eingelegt sein, bei dem mindestens ein Teil der Fäden überdreht ist.
Faservliese gemäss der Erfindung werden auf der Haut als kühler empfunden gegenüber üblichen Faservliesen. Diese Kühlwirkung kann noch dadurch erhöht werden, dass das Faservlies violett gefärbt wird. Die Färbung in dunkelviolett ist besonders zweckmässig; auch eine Färbung in einer anderen dunklen Farbe bewirkt eine Erhöhung des Kühleffektes. Schwarz ist hier aber nicht als Farbe anzusehen.
Die Erfindung ist in der Zeichnung beispielsweise veranschaulicht.
In Fig. 1 besteht das Vlies aus Stapelfasern 1, vorzugsweise Zellwollfasern, und Stücken von überdrehten Fäden 2. Steppnähte sind mit 3 bezeichnet. Die Fadenstücke 2 nehmen etwa 15 bis 30% des Gewichtes des Vlieses ein.
In Fig. 2 liegen die überdrehten Fäden in Richtung der Breite des Faservlieses, dessen Fasern 1 im wesentlichen in Längsrichtung des Vlieses liegen. Die Länge der Fäden 4 ist gleich der Breite des Vlieses.
In Fig. 3 sind die Fäden 5 mit den Fäden 6 zu einem Netz verbunden. Die Fäden 5 sind überdrehte Fäden; die Fäden 6 können ebenfalls überdrehte Fäden oder auch nichtüberdrehte Fäden sein, beispielsweise können als Fäden 5 oder als Fäden 6 überdrehte und nichtüberdrehte Fäden abwechselnd angeordnet sein. Ein solches Netz kann zwischen zwei Faservliesschichten eingelegt sein.
Fiber fleece for medical or hygienic purposes
Nonwovens for medical or hygienic purposes consist of fibers, usually cotton or cellulose fibers, whose position has a preferred direction and usually contain small amounts of binding agent. The strength of such nonwovens is therefore lower across this direction. The term fiber fleece is understood here to mean basically all so-called non-woven products.
When used for medical or hygienic purposes, nonwovens have the advantage that they are considerably cheaper than woven fabrics, but have the disadvantage that they cause more heat to build up on the skin when dry than woven fabrics, and that after being soaked they are so firmly attached to the skin Skin that the breathability of the skin is significantly impaired. Another disadvantage of nonwovens is their low transverse strength.
The invention aims to eliminate these disadvantages of fiber webs. According to the invention, the nonwoven fabric consists not only of fibers but also of twisted threads, and its binder content - if a binder is present at all - is so small that the twisted threads change their twist when wetted with water and thus also change their position . The twisted threads are preferably made of cotton or rayon fibers or mixtures thereof. To the extent that these twisted threads, the length of which can be considerably smaller than the width of the fiber fleece, lie transversely to the longitudinal direction of the fiber fleece, they essentially determine the transverse strength of the fiber fleece and thus increase it considerably.
When using such a fiber fleece, the twisted threads have a tendency to change their position and thereby to move fibers touching them and themselves.
This change in rotation is essentially reversed on drying. As a result, such a fiber fleece, which lies in a plane when dry, moves more or less out of this plane in places. A nonwoven fabric according to the invention lying on the skin will therefore lift off the skin in places if it is wetted, for example, by perspiration.
The fiber content of such a fiber fleece can preferably consist of 10 to 30% of twisted threads. The twisted threads can have a length of a few centimeters to a few decimeters, corresponding to the width of the fleece. The rotation of the threads is preferably at least 1000, for example 1200.
The pieces of the twisted threads are preferably attached in the production of the nonwoven in such a way that they are predominantly more or less at right angles to the preferred direction of the fibers. In particular, the twisted threads can lie in the direction of the width of the fleece and their length can be as great as the width of the fleece. To increase the transverse strength of the fleece, it can be provided with quilting seams, whereby the quilting threads can consist of twisted threads.
A network of interconnected threads can also be inserted into a fiber fleece, in which at least some of the threads are twisted.
Fiber fleeces according to the invention are perceived as being cooler on the skin compared to conventional fiber fleeces. This cooling effect can be increased by dyeing the nonwoven fabric in purple. The coloration in dark purple is particularly useful; coloring in another dark color also increases the cooling effect. But black is not to be regarded as a color here.
The invention is illustrated in the drawing, for example.
In FIG. 1, the fleece consists of staple fibers 1, preferably cellulose fibers, and pieces of twisted threads 2. Quilted seams are denoted by 3. The thread pieces 2 take up about 15 to 30% of the weight of the fleece.
In Fig. 2, the twisted threads are in the direction of the width of the fiber fleece, the fibers 1 are essentially in the longitudinal direction of the fleece. The length of the threads 4 is equal to the width of the fleece.
In Fig. 3 the threads 5 are connected to the threads 6 to form a network. The threads 5 are twisted threads; the threads 6 can also be twisted threads or also non-twisted threads, for example as threads 5 or as threads 6 overturned and untwisted threads can be arranged alternately. Such a net can be inserted between two fiber fleece layers.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH508571A CH523366A (en) | 1971-04-07 | 1971-04-07 | Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH508571A CH523366A (en) | 1971-04-07 | 1971-04-07 | Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
CH523366A true CH523366A (en) | 1972-05-31 |
Family
ID=4287686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH508571A CH523366A (en) | 1971-04-07 | 1971-04-07 | Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH523366A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0107051A2 (en) * | 1982-09-30 | 1984-05-02 | Firma Carl Freudenberg | Wound covering for bandages or compresses |
DE19531291A1 (en) * | 1995-08-25 | 1997-02-27 | Beiersdorf Ag | Substrates for medical purposes |
-
1971
- 1971-04-07 CH CH508571A patent/CH523366A/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0107051A2 (en) * | 1982-09-30 | 1984-05-02 | Firma Carl Freudenberg | Wound covering for bandages or compresses |
EP0107051A3 (en) * | 1982-09-30 | 1985-07-03 | Firma Carl Freudenberg | Wound covering for bandages or compresses |
DE19531291A1 (en) * | 1995-08-25 | 1997-02-27 | Beiersdorf Ag | Substrates for medical purposes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1917848B2 (en) | Process for the production of a non-woven textile web | |
DE2219817C3 (en) | Process for the production of a needle felt floor covering material with a pile-like surface | |
DE69002389T2 (en) | Textile reinforcement for the manufacture of various complexes and processes for their manufacture. | |
DE1945581A1 (en) | Non-woven fabrics for medical or hygienic purposes | |
CH523366A (en) | Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes | |
DE2648716A1 (en) | CARPET INTERLAYER | |
DE1469370A1 (en) | Heat sealing compounds for textiles | |
DE1785549A1 (en) | Seam connection | |
DE2455405B2 (en) | BELLY SCARF | |
EP1067227B1 (en) | Fillingmaterial made of nonwoven fleece of mixed fibers | |
DE1945581B (en) | Nonwoven fabric for medical and hygienic purposes | |
DE2332492A1 (en) | Non-woven garment interlining material - of non-woven fabric base to carry applied fibre strands and standing threads | |
DE666053C (en) | Followers for paper pulp processing machines | |
DE564709C (en) | Material made from fibers and synthetic resins converted into pile form | |
DE1906460A1 (en) | Sleeping quilt | |
DE2655873B2 (en) | Double weave for a clothing fabric | |
AT383623B (en) | HEAT-STERILIZABLE BLANKET AND A METHOD FOR THE PRODUCTION THEREOF | |
DE2140553C3 (en) | Process for the production of clothing materials from knitted or knitted goods containing polyester | |
DE589446C (en) | Layered woven blanket | |
DE2015067A1 (en) | Fibrous nonwoven sheet containing fibres - and threads for medical and hygienic purposes | |
AT158294B (en) | Lining fabric. | |
DE1265112B (en) | Composite for disposable bed linen | |
DE1008247B (en) | Method for producing a textile fabric, consisting of at least two fiber batt layers | |
DE2527582A1 (en) | Composite floor- or wall-cover - contg non-woven hydrophobic top layer, hydrophilic intermediate- and hydrophobic bottom layer | |
DE7247715U (en) | Terry toweling towel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |