EP0099893A1 - Nonwoven for medical compresses. - Google Patents

Nonwoven for medical compresses.

Info

Publication number
EP0099893A1
EP0099893A1 EP83900040A EP83900040A EP0099893A1 EP 0099893 A1 EP0099893 A1 EP 0099893A1 EP 83900040 A EP83900040 A EP 83900040A EP 83900040 A EP83900040 A EP 83900040A EP 0099893 A1 EP0099893 A1 EP 0099893A1
Authority
EP
European Patent Office
Prior art keywords
nonwoven
grid
grammage
cellulosic fibers
synthetic grid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83900040A
Other languages
German (de)
French (fr)
Other versions
EP0099893B1 (en
Inventor
Marcel Holvoet
Bernard Picard
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.)
Kaysersberg SA
Original Assignee
Beghin Say SA
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 Beghin Say SA filed Critical Beghin Say SA
Priority to AT83900040T priority Critical patent/ATE18446T1/en
Publication of EP0099893A1 publication Critical patent/EP0099893A1/en
Application granted granted Critical
Publication of EP0099893B1 publication Critical patent/EP0099893B1/en
Expired legal-status Critical Current

Links

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
    • D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074—Strand or strand-portions
    • Y10T428/24091—Strand or strand-portions with additional layer[s]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities
    • Y10T428/24694—Parallel corrugations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities
    • Y10T428/24694—Parallel corrugations
    • Y10T428/24702—Parallel corrugations with locally deformed crests or intersecting series of corrugations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]

Definitions

  • the present invention relates to a nonwoven whose curly or wavy structure gives it excellent absorption properties, making it particularly suitable for use as a medical or surgical compress.
  • each compress is, in general, wrapped individually and sterilized.
  • non-woven compresses are appreciably superior to those produced in gauze, with regard in particular to non-adherence to wounds, they nevertheless remain far below what is desired as regards the absorption capacity.
  • the present invention relates to a nonwoven overcoming the defects of traditional nonwovens and gauze.
  • this nonwoven has a succession of ripples uniformly distributed and whose adjacent bellies
  • QMPI_ are alternately arranged above and below the median plane of the nonwoven.
  • the contiguous belly of two neighboring undulations, situated on the same side of the median plane of the nonwoven, are made up of small adjacent pads.
  • the nonwoven is a complex formed of a synthetic grid on which is fixed, in particular by thermobonding, a web of cellulosic fibers.
  • Figure 1 is a top view of the nonwoven
  • Figure 2 is a sectional view of Figure 1 along a plane parallel to the machine direction of the nonwoven
  • Figure 3 is a sectional view of Figure 1 along a plane perpendicular to the machine direction of the nonwoven
  • Figure 4 is a perspective view of a nonwoven consisting of a synthetic grid and a web of cellulosic fibers.
  • Figure 1 is a top view of a nonwoven (1) which has a machine direction (2), corresponding to the longitudinal direction of production of said nonwoven, and a cross direction (3) perpendicular to the machine direction (2 ).
  • This nonwoven (1) has corrugations or crimps regularly spaced apart and arranged along lines (5) parallel to the machine direction (2).
  • Figure 2 which is a sectional view of Figure 1 along AA, plane parallel to the machine direction (2), shows that the nonwoven has corrugations (4) whose bellies (6, 7 ⁇ are alternati ⁇ vement above and below its median plane (8).
  • Figure 3 which is a sectional view of Figure 1 along BB, plane perpendicular to the machine direction (2), shows that the contiguous bellies (9, 10) of neighboring corrugations consist of small adjacent pads (11, 12) located on the same side of the median plane
  • FIG. 4 shows a preferred form of the invention: the nonwoven consists of a synthetic grid (13) formed of filaments (15) of a first polymer coated in a sheath of a second polymer and connected by thin strips (16) of the second polymer, grid on one side of which is deposited a web of cellulosic fibers (14).
  • the veil (14) is thermally bonded to the grid (13): thus the nonwoven does not contain any chemical binder and can therefore be used as a medical or surgical compress.
  • the synthetic grid (13) is a bi-stretched grid comprising in the machine direction (2) parallel polyamide filaments (15) regularly spaced by a distance of between 0.1 and 3 mm. and connected together by narrow polypropylene strips (16) regularly spaced by a distance between 0.1 and 3mm and perpendicular to the fila ⁇ ments (15).
  • the veil (14) of cellulosic fibers consists of a carding veil of cotton fibers.
  • this nonwoven has the advantage of being lighter than traditional gauze.
  • the grid (13) has a grammage between 5 and 15 g / m 2 preferably 7 g / m 2 and the web of cellulosic fibers (14) a grammage between 10 and 20 g / m 2 , preferably 16 g / m 2 .
  • the thickness is defined as the thickness of 10 superimposed sheets measured under a pressure of 20g / cm 2 .
  • the absorption speed is defined as the penetration time, in the nonwoven, of a drop of water of 1/20 cm 3 deposited on the surface of said nonwoven using a pipette .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials For Medical Uses (AREA)
  • Nonwoven Fabrics (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Liquid Crystal Substances (AREA)
  • Pyrane Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Woven Fabrics (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

Non-tissé frisé comportant des ondulations telles que les ventres contigus (9, 10) de deux ondulations voisines soient constitués de petits coussinets adjacents (11, 12) situés d'un même côté du plan médian (8) dudit non-tissé. Application: compresses médicales et chirurgicales.Curly nonwoven comprising undulations such that the contiguous bellies (9, 10) of two adjacent undulations consist of small adjacent pads (11, 12) situated on the same side of the median plane (8) of said nonwoven. Application: medical and surgical compresses.

Description

NON-TI SSE POUR COMPRESSES MEDI CALES NON-TI SSE FOR MEDI CALES COMPRESSES
La présente invention concerne un non-tissé dont la structure frisée ou ondulée lui confère d'excellentes propriétés d'absorption permettant notamment son emploi en tant que compresse médicale ou chirurgicale.The present invention relates to a nonwoven whose curly or wavy structure gives it excellent absorption properties, making it particularly suitable for use as a medical or surgical compress.
Actuellement les compresses médicales sont obtenues à partir d'un tissu léger - appelé gaze à pansements - (grammage compris entre 25 et 28 g/m2 ) dont la fabrication nécessite l'emploi d'un matériel de tissage coûteux et peu performant.Currently, medical compresses are obtained from a light fabric - called gauze for dressings - (grammage between 25 and 28 g / m 2 ), the manufacture of which requires the use of expensive and ineffective weaving material.
Ce tissu est ensuite plié et découpé en plusieurs dimensions : puis , chaque compresse est, en général , enveloppée individuel¬ lement et stérilisée.This fabric is then folded and cut into several dimensions: then, each compress is, in general, wrapped individually and sterilized.
Les compresses en gaze traditionnelle sont des produits très plats , adhérant aux plaies et présentant un coefficient d'absorption des fluides assez faible. En outre, leurs caractéristiques d'élasticité et de résilience sont très nettement insuffisantes .Traditional gauze compresses are very flat products that adhere to wounds and have a fairly low fluid absorption coefficient. In addition, their elasticity and resilience characteristics are very clearly insufficient.
De nombreuses recherches ont visé à remplacer la gaze par des non-tissés obtenus par voie sèche , par voie humide ou par la technique dite "spun-bonded" et composés de mélanges de fibres synthétiques et/ou naturel les .Numerous researches have aimed at replacing the gauze with nonwovens obtained by the dry route, by the wet route or by the so-called "spun-bonded" technique and composed of mixtures of synthetic and / or natural fibers.
Si les propriétés des compresses en non-tissé sont sensiblement supérieures à celles fabriquées en gaze, pour ce qui est notamment de la non-adhérence aux plaies , elles restent cependant très en deçà de ce qui est désiré quant à la capacité d'absorption .If the properties of non-woven compresses are appreciably superior to those produced in gauze, with regard in particular to non-adherence to wounds, they nevertheless remain far below what is desired as regards the absorption capacity.
La présente invention concerne un non-tissé palliant les défauts des non-tissés et de la gaze traditionnels .The present invention relates to a nonwoven overcoming the defects of traditional nonwovens and gauze.
Sa structure particulière permet d'allier des propriétés telles que capacité d'absorption élevée , non-adhérence aux plaies , élasticité et résilience.Its particular structure allows to combine properties such as high absorption capacity, non-adhesion to wounds, elasticity and resilience.
D'une manière générale ce non-tissé présente une succession d'ondulations uniformément réparties et dont les ventres adjacentsIn general, this nonwoven has a succession of ripples uniformly distributed and whose adjacent bellies
QMPI_ sont alternativement disposés au dessus et au dessous du plan médian du non-tissé.QMPI_ are alternately arranged above and below the median plane of the nonwoven.
En particulier, les ventre contigus de deux ondulations voisines , situés d'un même côté du plan médian du non-tissé sont constitués de petits coussinets adjacents.In particular, the contiguous belly of two neighboring undulations, situated on the same side of the median plane of the nonwoven, are made up of small adjacent pads.
Selon une forme de l'invention le non-tissé est un complexe formé d'une grille synthétique sur laquelle est fixé, notamment par thermoliage, un voile de fibres cellulosiques.According to one form of the invention, the nonwoven is a complex formed of a synthetic grid on which is fixed, in particular by thermobonding, a web of cellulosic fibers.
L'invention sera mieux comprise à l'aide des dessins, lesquels représentent des exemples non limitatifs de réalisation du non- tissé :The invention will be better understood with the aid of the drawings, which represent nonlimiting examples of embodiment of the nonwoven:
la figure 1 est une vue de dessus du non-tissé , la figure 2 est une vue en coupe de la figure 1 selon un plan parallèle au sens machine du non-tissé, la figure 3 est une vue en coupe de la figure 1 selon un plan perpendiculaire au sens machine du non-tissé. la figure 4 est une vue en perspective d'un non-tissé constitué d'une grille synthétique et d'un voile de fibres cellulosiques.Figure 1 is a top view of the nonwoven, Figure 2 is a sectional view of Figure 1 along a plane parallel to the machine direction of the nonwoven, Figure 3 is a sectional view of Figure 1 along a plane perpendicular to the machine direction of the nonwoven. Figure 4 is a perspective view of a nonwoven consisting of a synthetic grid and a web of cellulosic fibers.
La figure 1 est une vue de dessus d'un non-tissé ( 1 ) qui présente un sens machine (2) , correspondant au sens longitudinal de production dudit non-tissé, et un sens travers (3) perpendiculaire au sens machine (2) .Figure 1 is a top view of a nonwoven (1) which has a machine direction (2), corresponding to the longitudinal direction of production of said nonwoven, and a cross direction (3) perpendicular to the machine direction (2 ).
Ce non-tissé ( 1 ) comporte des ondulations ou frisures réguliè¬ rement espacées et disposées le long de lignes ( 5) parallèles au sens machine (2) .This nonwoven (1) has corrugations or crimps regularly spaced apart and arranged along lines (5) parallel to the machine direction (2).
La figure 2 qui est une vue en coupe de la figure 1 selon AA , plan parallèle au sens machine (2) , montre que le non-tissé pré¬ sente des ondulations (4) dont les ventres (6 ,7} sont alternati¬ vement au dessus et au dessous de son plan médian (8) .Figure 2 which is a sectional view of Figure 1 along AA, plane parallel to the machine direction (2), shows that the nonwoven has corrugations (4) whose bellies (6, 7} are alternati¬ vement above and below its median plane (8).
Q PI. La figure 3 qui est une vue en coupe de la figure 1 selon BB, plan perpendiculaire au sens machine (2), montre que les ventres contigus (9, 10) d'ondulations voisines sont constitués de petits coussinets adjacents (11, 12) situés d'un même côté du plan médianQ PI . Figure 3 which is a sectional view of Figure 1 along BB, plane perpendicular to the machine direction (2), shows that the contiguous bellies (9, 10) of neighboring corrugations consist of small adjacent pads (11, 12) located on the same side of the median plane
(8) du non-tissé.(8) nonwoven.
En arrière du plan de coupe on voit le profil des coussinets situés en dessous du plan médian (8).Behind the cutting plane we see the profile of the pads located below the median plane (8).
La hauteur et la largeur de ces coussinets sont comprises entreThe height and width of these pads are between
0,1 et 3 mm.0.1 and 3 mm.
La figure 4 présente une forme préférée de l'invention : le non- tissé est constitué d'une grille synthétique (13) formée de filaments (15) d'un premier polymère enrobés dans une gaine d'un second polymère et reliés par de fines lamelles (16) du second polymère, grille sur une face de laquelle est déposé un voile de fibres cellulosiques (14).FIG. 4 shows a preferred form of the invention: the nonwoven consists of a synthetic grid (13) formed of filaments (15) of a first polymer coated in a sheath of a second polymer and connected by thin strips (16) of the second polymer, grid on one side of which is deposited a web of cellulosic fibers (14).
Le voile (14) est thermolié à la grille (13) : ainsi le non-tissé ne comporte aucun liant chimique et peut donc être utilisé en tant que compresse médicale ou chirurgicale.The veil (14) is thermally bonded to the grid (13): thus the nonwoven does not contain any chemical binder and can therefore be used as a medical or surgical compress.
Selon une forme préférée de l'invention la grille synthétique (13) est une grille bi-étirée comportant dans le sens machine (2) des filaments de polyamide parallèles (15) régulièrement espacés d'une distance comprise entre 0,1 et 3 mm et reliés entre eux par des bandes étroites de polypropylène (16) régulièrement espacées d'une distance comprise entre 0,1 et 3mm et perpendiculaires aux fila¬ ments (15).According to a preferred form of the invention, the synthetic grid (13) is a bi-stretched grid comprising in the machine direction (2) parallel polyamide filaments (15) regularly spaced by a distance of between 0.1 and 3 mm. and connected together by narrow polypropylene strips (16) regularly spaced by a distance between 0.1 and 3mm and perpendicular to the fila¬ ments (15).
Le voile (14) de fibres cellulosiques est constitué d'un voile -de carde de fibres de coton.The veil (14) of cellulosic fibers consists of a carding veil of cotton fibers.
En outre, ce non-tissé présente l'avantage d'être plus léger que la gaze traditionnelle.In addition, this nonwoven has the advantage of being lighter than traditional gauze.
La grille (13) a un grammage compris entre 5 et 15 g/m2 de préfé¬ rence 7 g/m2 et le voile de fibres cellulosiques (14) un grammage compris entre 10 et 20 g/m2, de préférence 16 g/m2.The grid (13) has a grammage between 5 and 15 g / m 2 preferably 7 g / m 2 and the web of cellulosic fibers (14) a grammage between 10 and 20 g / m 2 , preferably 16 g / m 2 .
OMPI Sa densité apparente est inférieure à 0,15 - de préférence 0,1 - et sa capacité d'absorption est supérieure à 13 cm3 /g - de préférence 16 cm3/g -.WIPO Its apparent density is less than 0.15 - preferably 0.1 - and its absorption capacity is greater than 13 cm 3 / g - preferably 16 cm 3 / g -.
Le tableau ci-après donne les résultats de mesures effectuées sur le non-tissé selon l'invention, sur de la gaze traditionnelle et sur un non-tissé de commerce dénommé PELY-TEX :The table below gives the results of measurements carried out on the nonwoven fabric according to the invention, on traditional gauze and on a commercial nonwoven fabric called PELY-TEX:
Non-tissé Gaze Peiy-tex 23V1 selon l'InventionNonwoven Gaze Peiy-tex 23V1 according to the Invention
Grammage g/m2 24 25 23,7Weight g / m 2 24 25 23.7
Epaisseur mm(l ) 2,40 1,50 1,40Thickness mm (l) 2.40 1.50 1.40
Densité 0,1 0,17 0,17Density 0.1 0.17 0.17
Vitesse d'absorption 60 45 sec. (2)Absorption speed 60 45 sec. (2)
Coefficient d'absorption 16 12 12,7 cm3/g (3)Absorption coefficient 16 12 12.7 cm 3 / g (3)
(1) l'épaisseur est définie comme l'épaisseur de 10 feuilles superposées mesurée sous une pression de 20g/cm2.(1) the thickness is defined as the thickness of 10 superimposed sheets measured under a pressure of 20g / cm 2 .
(2) la vitesse d'absorption est définie comme temps de pénétration, dans le non-tissé, d'une goutte d'eau de 1/20 cm3 déposée sur la surface dudit non-tissé à l'aide d'une pipette.(2) the absorption speed is defined as the penetration time, in the nonwoven, of a drop of water of 1/20 cm 3 deposited on the surface of said nonwoven using a pipette .
(3) le coefficient d'absorption est déterminé selon la norme CODEX applicable au coton hydrophile.(3) the absorption coefficient is determined according to the CODEX standard applicable to cotton wool.
OMPI La structure très particulière du non-tissé selon l'invention permet de fabriquer des compresses :WIPO The very particular structure of the nonwoven according to the invention makes it possible to manufacture compresses:
très absorbantes, grâce aux coussinets décrits plus haut et à la présence du voile de fibres cellulosiques ,very absorbent, thanks to the pads described above and the presence of the veil of cellulose fibers,
non adhérentes aux plaies grâce à un pliage tel que la partie destinée à venir un contact avec une plaie soit constituée de la grille synthétique nue,non-adherent to wounds thanks to a folding such that the part intended to come into contact with a wound consists of the bare synthetic grid,
élastiques en raison de la présence des ondulations unifor¬ mément réparties ,elastic due to the presence of uniformly distributed undulations,
résilientes grâce à l'armature constituée par la grille synthétique. resilient thanks to the frame formed by the synthetic grid.

Claims

REVENDICATIONS
1. Non-tissé (1) possédant un sens machine (2) et un sens travers (3), caractérisé en ce qu'il présente une succession d'ondulations (4) uniformément réparties selon des lignes (5) parallèles au sens machine (2) et dont les ventres adjacents (6, 7) sont alternativement disposés au-dessus et au-dessous du plan médian (8) dudit non-tissé.1. Nonwoven (1) having a machine direction (2) and a cross direction (3), characterized in that it has a succession of undulations (4) uniformly distributed along lines (5) parallel to the machine direction (2) and whose adjacent bellies (6, 7) are alternately arranged above and below the median plane (8) of said nonwoven.
2. Non-tissé selon la revendication 1, caractérisé en ce que les ventres contigus (9, 10) de deux ondulations voisines, situés d'un même côté du plan médian (8) sont constitués de petits coussinets (11, 12) adjacents.2. Nonwoven according to claim 1, characterized in that the contiguous bellies (9, 10) of two neighboring undulations, situated on the same side of the median plane (8) consist of small adjacent pads (11, 12) .
Non-tissé selon la revendication 2, caractérisé en ce que la hauteur de chaque coussinet au-dessus du plan médian (8) est comprise entre 0,1 et 3 mm.Nonwoven according to claim 2, characterized in that the height of each pad above the median plane (8) is between 0.1 and 3 mm.
4. Non-tissé selon l'une des revendications 2 ou 3, caractérisé en ce que la largeur de chaque coussinet est comprise entre 0,1 et 3 mm.4. Nonwoven according to one of claims 2 or 3, characterized in that the width of each pad is between 0.1 and 3 mm.
5. Non-tissé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il est consituté d'une grille synthé¬ tique (13) comportant sur l'une de ses faces un voile de fibres cellulosiques (14).5. Nonwoven fabric according to any one of claims 1 to 4, characterized in that it is constituted by a synthetic grid (13) comprising on one of its faces a web of cellulosic fibers (14) .
Non-tissé selon la revendication 5, caractérisé en ce que la grille synthétique (13) est une grille bi-étirée comportant dans le sens machine (2) des filaments de polyamide parallèles (15) régulièrement espacés d'une distance comprise entre 0,1 et 3 mm, reliés entre eux par des bandes étroites de 1- polypropylène (16) régulièrement espacées d'une distance comprise entre 0,1 et 3 mm et perpendiculaires aux filaments (15).Nonwoven according to claim 5, characterized in that the synthetic grid (13) is a bi-stretched grid comprising in the machine direction (2) parallel polyamide filaments (15) regularly spaced by a distance between 0, 1 and 3 mm, interconnected by narrow strips of 1- polypropylene (16) regularly spaced by a distance between 0.1 and 3 mm and perpendicular to the filaments (15).
7. Non-tissé selon l'une des revendications 5 ou 6, caractérisé en ce que le voile (14) de fibres cellulosiques est thermolié à la grille synthétique (13).7. Nonwoven according to one of claims 5 or 6, characterized in that the veil (14) of cellulosic fibers is thermally bonded to the synthetic grid (13).
8. Non-tissé selon l'une des revendications 5, 6 ou 7, caractérisé en ce que le voile (14) de fibres cellulosiques est un voile de carde de fibres de coton.8. Nonwoven according to one of claims 5, 6 or 7, characterized in that the veil (14) of cellulosic fibers is a carding veil of cotton fibers.
9. Non-tissé selon l'une quelconque des revendications 5 à 8, caractérisé en ce que le grammage de la grille synthétique (13) est compris entre 5 et 15 g/m2 et en ce que le grammage du voile de fibres cellulosiques est compris entre 10 et 20 g/m2.9. Nonwoven according to any one of claims 5 to 8, characterized in that the grammage of the synthetic grid (13) is between 5 and 15 g / m 2 and in that the grammage of the web of cellulosic fibers is between 10 and 20 g / m 2 .
10. Non-tissé selon les revendications 8 et 9, caractérisé en ce que que le grammage de la grille synthétique (13) est de 7g/m2 et en ce que le grammage du voile de carde de fibres de coton est de 16g/m2.10. Nonwoven fabric according to claims 8 and 9, characterized in that the grammage of the synthetic grid (13) is 7 g / m 2 and in that the grammage of the cotton fiber card web is 16 g / m 2 .
11. Non-tissé selon la revendication 10, caractérisé en ce que sa densité apparente est inférieure à 0,15 et son coefficient d'absorption d'eau supérieur à 13 cm3/g.11. Nonwoven fabric according to claim 10, characterized in that its apparent density is less than 0.15 and its water absorption coefficient greater than 13 cm 3 / g.
12. Non-tissé selon la revendication 11, caractérisé en ce que sa densité apparente est de 0,1 et son coefficient d'absorption est de 16 cm3/g.12. Nonwoven fabric according to claim 11, characterized in that its apparent density is 0.1 and its absorption coefficient is 16 cm 3 / g.
O PI O PI
13. Non-tissé selon la revendication 12 , caractérisé en ce que son épaisseur est d'environ 0 , 24 mm .13. A nonwoven according to claim 12, characterized in that its thickness is approximately 0.24 mm.
14. Compresse médicale fabriquée à partir d'un non-tissé selon l'une quelconque des revendications précédentes , caractérisée en ce qu'elle est pliée de façon à ce que la partie destinée à venir en contact avec une plaie, soit constituée de la grille synthétique ( 13 ) nue.14. Medical compress made from a nonwoven according to any one of the preceding claims, characterized in that it is folded so that the part intended to come into contact with a wound, consists of the bare synthetic grid (13).
PI PI
EP83900040A 1982-01-29 1982-12-16 Nonwoven for medical compresses Expired EP0099893B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83900040T ATE18446T1 (en) 1982-01-29 1982-12-16 NON-WOVEN TEXTILE FABRIC FOR MEDICAL COMPRESSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8201392 1982-01-29
FR8201392A FR2520766A1 (en) 1982-01-29 1982-01-29 NON-WOVEN FOR MEDICAL COMPRESSES

Publications (2)

Publication Number Publication Date
EP0099893A1 true EP0099893A1 (en) 1984-02-08
EP0099893B1 EP0099893B1 (en) 1986-03-05

Family

ID=9270448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900040A Expired EP0099893B1 (en) 1982-01-29 1982-12-16 Nonwoven for medical compresses

Country Status (24)

Country Link
US (1) US4546027A (en)
EP (1) EP0099893B1 (en)
JP (1) JPS59500101A (en)
AT (1) ATE18446T1 (en)
AU (1) AU562547B2 (en)
BR (1) BR8208056A (en)
CA (1) CA1224019A (en)
DE (1) DE3269765D1 (en)
DK (1) DK169733B1 (en)
DZ (1) DZ486A1 (en)
ES (1) ES269428Y (en)
FI (1) FI74492C (en)
FR (1) FR2520766A1 (en)
GR (1) GR77894B (en)
IE (1) IE53769B1 (en)
IL (1) IL67670A (en)
IN (1) IN156677B (en)
IT (2) IT1161461B (en)
MX (1) MX156789A (en)
NO (1) NO160150C (en)
OA (2) OA07293A (en)
PT (1) PT76150B (en)
SU (1) SU1271377A3 (en)
WO (1) WO1983002630A1 (en)

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US4992324A (en) * 1988-09-12 1991-02-12 Johnson & Johnson, Inc. Absorbent flexible board
AU4682793A (en) * 1992-07-27 1994-02-14 Procter & Gamble Company, The Laminated dual textured treatment pads
USH1511H (en) * 1992-09-10 1995-12-05 Chappell; Charles W. Absorbent articles having improved longitudinal fluid movement
WO1995003165A1 (en) * 1993-07-20 1995-02-02 Franz Haimer Pressing produced from vegetable material by pelletting and device for making it
US6500539B1 (en) 1998-03-05 2002-12-31 The Regents Of The University Of California Anti-adhesion cellulose acetate wound dressing
US6545197B1 (en) * 1998-05-02 2003-04-08 The Procter & Gamble Company Disposable absorbent article having an improved topsheet
US6867346B1 (en) * 1999-09-21 2005-03-15 Weyerhaeuser Company Absorbent composite having fibrous bands
US6783837B1 (en) 1999-10-01 2004-08-31 Kimberly-Clark Worldwide, Inc. Fibrous creased fabrics
JP3748743B2 (en) * 1999-10-04 2006-02-22 ユニ・チャーム株式会社 Absorbent article and manufacturing method thereof

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Also Published As

Publication number Publication date
JPH0160582B2 (en) 1989-12-25
IT8367063A0 (en) 1983-01-21
DK169733B1 (en) 1995-01-30
FI833199A0 (en) 1983-09-07
AU1019883A (en) 1983-08-12
AU562547B2 (en) 1987-06-11
NO160150B (en) 1988-12-05
IL67670A (en) 1988-01-31
JPS59500101A (en) 1984-01-19
NO833517L (en) 1983-09-28
IE830086L (en) 1983-07-29
CA1224019A (en) 1987-07-14
PT76150B (en) 1986-01-24
FI833199A (en) 1983-09-07
OA07549A (en) 1985-03-31
FI74492B (en) 1987-10-30
WO1983002630A1 (en) 1983-08-04
ES269428U (en) 1983-06-16
IT1161461B (en) 1987-03-18
IL67670A0 (en) 1983-05-15
NO160150C (en) 1989-03-15
PT76150A (en) 1983-02-01
IN156677B (en) 1985-10-12
DE3269765D1 (en) 1986-04-10
IE53769B1 (en) 1989-02-01
ES269428Y (en) 1984-01-16
US4546027A (en) 1985-10-08
FI74492C (en) 1988-02-08
MX156789A (en) 1988-10-04
FR2520766A1 (en) 1983-08-05
DK443583D0 (en) 1983-09-28
DZ486A1 (en) 2004-09-13
EP0099893B1 (en) 1986-03-05
IT8352864V0 (en) 1983-01-21
GR77894B (en) 1984-09-25
DK443583A (en) 1983-09-28
OA07293A (en) 1984-08-31
ATE18446T1 (en) 1986-03-15
SU1271377A3 (en) 1986-11-15
FR2520766B1 (en) 1985-03-22
BR8208056A (en) 1984-01-10

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